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Bulgin Offers Application-Focused Approach to Connectivity and Switching

April 9, 2018

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Bulgin is helping its customers to select the right connectors and switches for their applications with the launch of an Industry Applications brochure. Covering the entire Bulgin portfolio – including its broad range of Arcolectric switches – this newly created brochure provides a brief overview of the product lines best suited to each application.

The brochure is divided into industry-specific sections – industrial, marine, transport and infrastructure, automotive, medical, oil and gas, data and telecoms, agriculture, renewable energy, recreation and leisure, and appliances – demonstrating the diverse range of settings where you might find Bulgin products. A simple visual guide and ‘at a glance’ descriptions highlight the key features and available options for each product, making it quick and easy to find what you need. From circular power and data connectors to fuse holders and switches – as well as specialist fittings, such as ROV tether connectors and ATEX rated products – you can rely on Bulgin’s environmental protection expertise and many years of industry experience to provide the right solution for your application.

To download a copy of the brochure,
click here ----->   Applications Brochure

 

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Schurter - Protection Against Thermal Runaway

March 21, 2018

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A thermal runaway is an increasing threat to electronic devices where more and more power is packed in ever smaller spaces; it is a threat that is poorly dealt with using traditional means.

The causes of a thermal runaway are varied and often random in nature. However, the ever-higher power density in electronic wiring and the trend towards miniaturization are without a doubt of particular importance.

More and more functions are packed in compact modules, which then also have a correspondingly high power consumption. Even slightly excessive currents in power electronics with only a little power loss lead to elevated temperatures of approximately 200 °C. The possible consequences: damage or disconnection of surrounding components, damage to the printed circuit board structure or, in the worst case, the triggering of a fire.

Click Link Below for Application Notes:

Protection Against Thermal Runnaway

 

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Bulgin’s Popular Buccaneer Range is an Excellent Example of IP66, IP67, IP68 and IP69K Rated Environmentally Sealed Circular Connectors.

March 20, 2018

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There is a growing demand for power, signal and data to be made available just about everywhere we look – even in the most extreme types of environments. This means that the cables providing connectivity to these technological components have to work reliably under tough conditions – on automated factory floors, inside heavy machinery, exposed to outdoor elements or even underwater. One of the most common points for potential damage in any electrical system is any place where these cables get plugged in – the connectors.

So what’s the difference between a normal connector and a harsh connector?

Harsh connectors are expertly designed for extreme environments where technology is being pushed to new frontiers.

Some of the main elements that rugged electrical connectors will protect against include:

Water – this includes rain, water vapour, and possible water submersion.
Dust – industrial and outdoor environments often contain a lot of dust or dirt, which can be harmful to electrical systems.
Extreme temperatures – very low or high temperatures can be detrimental to technology.
• Explosive environments – ATEX zones are work areas that could be potentially explosive because of the presence of dangerous substances in the form of combustible dust, gas, vapour or mist.
Rough handling – some connectors need to be mated and unmated multiple times in a day, often hurriedly, which increases the risk of wear and tear on the connector. Connectors being dropped or dragged along hard surfaces can also cause damage to the components inside the connector and affect the integrity of power, signal or data connections being passed through the cable.
Pressure – power, data and fibre optics are needed in aircraft, in space and even at the bottom of the ocean, where pressures can reach up to 9,000 pounds per square inch.
Salinity – the high salt content of water and air in coastal and marine environments can cause corrosion and calcareous growth. The correct material selection is therefore vital to ensure the maximum lifecycle of technology components used in coastal and marine environments.

Key features of a harsh environment connector:
IP rating – depending on the application, harsh connectors should have Ingress Protection (IP) Ratings of IP67 (protection from dust and immersion between 15cm – 1m), IP68 (protection from dust and long-term immersion up to a specified depth) or IP69K (protection from dust, close-range high pressure and high temperature spray downs). IP69K is ideal for applications in the food processing and medical industries, where equipment must be regularly sanitised.
Locking/coupling mechanisms – a robust coupling mechanism is a must for harsh connectors. There are many different types of connector couplings, including ring, twist locking, threaded, bayonet, push-pull and quick disconnect couplings, all with different attributes for various types of applications.
Housing and insulation – the type of material the connector is made of is an equally important consideration. For applications where the connector is likely to be exposed to extremes of temperature and plenty of moisture and dust, a corrosion-resistant metal housing may be the most appropriate option. For other uses requiring lightweight and flexible connectors, high-temperature resistant plastic composites may be more attractive. Overmoulded cable versions are also sometimes available as an option where it is not a requirement for the unit to be re-terminated.
Seals & grommets – rubbery seals can be used inside the coupling for keeping the connection tightly in place and watertight.

The shape of the connector, thread pattern or mating mechanism and positioning of pins also play an important role in the creation of a truly rugged and reliable connector. Circular connectors allow for better ease of engagement and disengagement as well as capacity for a wider variety of contacts and voltages. Circular connectors are also easier to seal and less likely to wear or break, and an intelligent ‘scoop proof’ design can avoid damage to the pins if the connector is mis-mated.

Bulgin’s popular Buccaneer range is an excellent example of IP66, IP67, IP68 and IP69K rated environmentally sealed circular connectors. These secure, rugged and highly reliable connectors can be used in harsh or hostile environments and offer a wide choice of options from 2 to 32 poles with screw, solder or crimp terminations as well as USB, SMB & RJ45 options for data to solve any type of design requirement.

 

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Hylec IP66 DN Enclosures Range

March 13, 2018

Hylec'S IP66 DN Enclosures range is a very flexible solution for the vast number of applications needing protection against water ingress that also house components requiring either visual checking or frequent access. They will withstand repeated opening and closing with no loss of sealing integrity. A 35mm DIN rail and mounting screws for simpler mounting of terminal blocks, relays and connectors is included, and the DN range also carries multiple slots for vertical PCB mounting, making this product an excellent and flexible choice for both electrical and electronic applications. Manufactured from flame-retardant ABS, its exceptional robustness also extends to meet the IK08 impact standard.

 

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Schurter Type DD14 Power Entry Module with Double-Stage Filter

March 6, 2018

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* Ultra-compact design
* Suitable for very high EMI disturbances
* Various mounting options
* V-Lock cord retaining option
* Fuseholder meets latest IEC standard

Today’s electronic equipment is designed to deliver high performance in a compact size. Often this causes problems affecting the equipment itself or other nearby devices due to the inherent electro-magnetic interferences being generated in and between the different systems. To meet these EMC challenges, high performance power entry modules must also keep pace, and such is the case with the new DD14 series from SCHURTER. The DD14 series packs remarkable functionality into a new generation of compact power entry modules.

The new DD14 combines an IEC C14 appliance inlet with 2-pole switch and 2-pole fuseholder. EMC performance is further enhanced with a depth-saving 2-stage filter. Shielding is optimized by screwing the metal casing of the filter to the panel, using its horizontal or vertical flange. A snap-in filter version eliminates the flange, consuming even less panel space.

The DD14 integrates the EMC filter directly in line with the power input. The two-stage filter design suppresses interference voltages more effectively over a much broader frequency spectrum than single-stage filters, thereby having a positive effect on electro-magnetic compatibility. Standard and low-leakage medical filter options are available for use in commercial or facilities ICT equipment according to IEC 60950 and medical equipment according to IEC 60601-1. The series meets the new fuseholder requirements outlined in IEC 60127-6 for enhanced fire safety and is also suitable for use in home appliances according to IEC 60335-1. It is compatible with V-Lock retaining cordsets.

The DD14 is rated for current levels up to 10 A / 250 VAC according to IEC and 8 A 125/250 VAC according to UL / CSA. It is ENEC and cURus approved.

 

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Schurter RTS - Reflowable Thermal Switch

February 21, 2018

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• Prevents power semiconductors from thermal runaway
• Supports up to 60 VDC applications
• Reflow solderable at 260 °C
• Customer-specific version with shunt or overcurrent fuse
• Smallest dimensions

Schurter introduces its new RTS. The RTS is a particularly compact overtemperature protection device using advanced SMD technology. It is suited for the highest demands of protection in power semiconductors.

RTS stands for "Reflowable Thermal Switch". It was developed to protect highly integrated power semiconductors like MOSFETs, ICs, IGBTs, Triacs, SCRs, etc. from overheating. Before mechanical activation, the RTS can be mounted using conventional reflow soldering techniques with temperature profiles up to 260 °C.

Mechanical Activation
After having the RTS reflow soldered on a PCB, mechanical activation arms the RTS for tripping at 210 °C. This activation can be done manually or by fully automated means. In contrast to electrical activation, the RTS activation status is clearly and immediately visible to the installer. Furthermore, the third additional contact required for electrical activation is thereby eliminated.

Compact Dimensions, High Load Capacity
The new type of overtemperature protection shines with the smallest dimensions and highest load capacity. Operating currents up to 100 A at rated voltages of up to 60 VDC can be handled by the RTS, which is just 6.6 x 8.8 mm in size. Customer-specific variants are available with an integrated shunt or an additional overcurrent fuse. These further integrated functions are resulting in less space consumed on the printed circuit board. The Reflowable Thermal Switch meets the high reliability requirements of AEC-Q200 and MIL-STD.

Protection Against Thermal Runaway
Thermal runaway refers to the overheating of a power semiconductor due to a self-reinforcing, heat-producing process. The reasons for this are the ever increasing power density and the trend towards miniaturization of electronic circuits.

RTS protects power semiconductors not through a logic circuit but rather through basic laws of physics. In case of a thermal runaway, the RTS reliably interrupts the circuit precisely at the well-defined temperature.

Technical Data
• Rated Voltage 60 VDC
• Tripping temperature 210 °C
• Operating current up to 100 A

 

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Hylec’s Comprehensive Range of PCB Terminal Blocks, PCB Fuse Holders & PCB DIN Rail Supports

February 16, 2018

Hylec’s comprehensive range of PCB terminal blocks is suitable for virtually every application.

Enabling secure transmission of signals, data and power to PCBs, Hylec’s wide range of terminal blocks feature a space-saving connection method ideal for multiple OEM applications in consumer, processing and industrial applications. In virtually every type and style, as well as standard though-hole mounting and wire protected designs, there are plug & socket (right-angled and vertical), board-to-board (pluggable) and screwless, push-wire terminal blocks, plus rising clamp PCB terminal blocks in single, double and triple-decker styles which save valuable board space.

Manufacturers can also find a comprehensive range of PCB fuse holders and PCB DIN rail supports at Hylec. The PCB fuse holders and cover are available in green and black, on industry-standard 22.6mm pitch. Compact and UL- and VDE-approved, they are available at very competitive prices. As a result of the structure and design of the tool, Hylec DIN rail mounting PCB supports offer a superior degree of rigidity compared to most others available on the market, and are available in a greater range of sizes.

 

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Schurter Type FMAB NEO with Optionally Available Overvoltage Protection (Varistors)

February 14, 2018

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FMAB NEO
• optional overvoltage protection
• very compact design
• attractive price/performance ratio

Schurter expands the successful range of chassis mounted filters for single-phase systems FMAB NEO with optionally available overvoltage protection (varistors). This is increasingly in demand, especially in regions with many thunderstorms. The single-stage filter series has a compact design with high performance at the same time.

Overvoltage pulses (e. g. lightning) often have a devastating effect on electronic circuits. This can range from malfunctions to complete destruction. In response to special customer requests, SCHURTER has therefore extended its popular and successful FMAB NEO filter family with varistor variants for surge protection. These variants are available on request. They have ENEC approvals for the entire current range as well as UL/CSA approvals from 1 A to 20 A.

The single-stage filter series has steel housings with a closed bottom. This effectively shields the filter, no matter how it is installed. The series is suitable for applications with high symmetric interferences – such as devices with semiconductors that control large outputs (e.g. professional coffee machines, devices with hot water supply, industrial electronics). The particularly compact filters are also ideally suited for medical and household appliances.

The filter series is available with push-in fittings or threaded bolts. Optionally, there are versions with stranded cable connection. All models have a metal flange for easy screw mounting on the housing.

The series is designed for currents from 1 A to 60 A at 250 VAC in accordance with IEC and UL standards. It has the ENEC and cURus approvals and is suitable for applications in accordance with IEC 60950. Variants with small leakage currents <80 μA (M80) or without leakage current <5 μA (M5) are available for medical devices in accordance with IEC / UL 60601-1.

 

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Schaffner Document: EMC in Medical Applications

January 23, 2018

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When Every Heartbeat Counts

Holger Urban, Product Marketing Manager, Schaffner International AG

It is apparent that the medical electronics market continues to grow and that this trend is unlikely to slow down any time soon. Every person who has access to advanced medical care will try to get the best support available and the best treatment possible to increase their quality of life. Due to changes in demographic and social standards, we expect further increases in demand on medical infrastructure within the next few years.

The ability to design customer centric solutions for home care or even robot-aided surgery drives engineering to the edge and to technologies inconceivable just decades ago. The central challenge to designers is to improve health without applying any additional risk to the patient.

EMC is now considered to be one of the most important design aspects that any new electrical or electronic system design needs to fulfill. It is therefore essential that designers should consider integrating EMC filters as soon as possible in the development phase. Selecting the right EMC filter could save time and prevent additional costs in later stages of the design approval process.

A good example of a medical application with limited space is automated syringe pump. Such pumps are directly attached to the patient through an insulating plastic hose. The medication delivery must be programmable and repeatable; this means that the control logic has to be reliable. That’s why EMC matters in order to ensure the pumps continue to operate as intended without interfering with (or being affected by) other pumps and equipment operating nearby (within a hospital for example). Therefore relevant EMC and safety standards need to be fulfilled. The medical Standard IEC60601-1 focusses on major safety points; some of these are applicable to the mains power entry where Schaffner has a range of solutions.

Specifying Components for Fulfillment of IEC60601-1

Here Schaffner offers a level of product certification which helps designers to meet the safety requirements of European and U.S. legislations. The approval certificate for Schaffner Filters according to IEC60939-3 includes a section where the filters compatibility to fulfill the requirements of IEC60601-1 is stated.

“The FN92XX filters (B-types in particular) comply with the requirements of the EN/IEC 60601-1 standard regarding creepage and clearance distances, leakage current and voltage withstand.”

Medical EMC filters also have to be designed to allow the customer to fulfill MOPP and MOOP (Means of patient and means of operator protection) for any medical application. Depending on the level of insulation needed, design of a custom filter solution can be considered.

The leakage current definition for electrical medical devices is an important topic which has the same purpose of reducing the risk to the patient. There are number of different connections to consider. The most severe level within the standard is CF (Class C floating type connection suitable for cardiac application) applied part, which is limited to 10µA in normal condition and 50µA in a single fault condition. Considering parasitic effects in a system the filter should not introduce any additional leakage current. However in less critical applications, EMC filters with very low leakage current can be considered as well. Such filters have higher performance compared to filters without any leakage currents. Leakage currents are directly related to the value of capacitors used in filters connected between Lines to Protective Earth (PE) (Y- Capacitors or Cy).

Performance Levels with Reduced Leakage Current

Schaffner offers standard solutions for different levels of leakage current requirements. In general the solution for medical applications is the so called B-type filters. These filters do not have any capacitance to PE and therefore do not add any leakage current to the system. It must be noted that the overall leakage current for the whole system needs to be determined, even with a filter which does not introduce any leakage current.

With removal of (Cy) capacitance to PE, the overall performance of the filter is reduced compared to the standard filter with Cy. Schaffner also offers so called EB-type filter to compensate some of lost performance as a result of no Cy.

In addition to the performance enhancement, EB-type filters increase immunity to electrical fast transients compared to the B-type. This will help customers comply with the IEC/EN61000-4-4 immunity tests.

Therefore Schaffner EB-Type Filters can be the best performing filters available in its class for a reliable medical Electrical design.

To conclude, EMC filters for medical applications should:

- fulfill the most stringent leakage current regulations
- offer the best size vs performance
- be designed for typical usage in medical environment

Overall its clear devices should help to increase the health of patient and should not pose any potential risk when applied to a human body. With a Schaffner filter, customers can easily solve their EMC issues and get products certifications without applying any additional risk to the patient.

Schaffner not only offers a number of “off the shelf” EMC filtering solutions for medical applications but also works closely with customers who require customized solution.

www.schaffner.com

Holger Urban Product Marketing Manager
+41 32 681 67 10 (direct)
holger.urban@schaffner.com

Frank Almer Manager Marketing Communication
+41 32 681 68 80 (direct)
frank.almer@schaffner.com

Schaffner EMV AG
Nordstrasse 11
4542 Luterbach
Switzerland
T +41 32 681 66 26
F +41 32 681 66 41
www.schaffner.com

 

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Schurter IEC Power Entry Module Series 6200, 6202 and 6205 with V-Lock Cord Retention and Enhanced Glow Wire Resistance as Standard Features

January 15, 2018

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The power entry module series 6200, 6202 and 6205 are now equipped as standard with the V-Lock cord retention feature and are made of new material, whereby the components meet the increased glow wire tests according to IEC 60127-6 Edition 2 and IEC 60335-1 for appliances in unattended use.

 

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