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Schurter Components Overview

June 23, 2023
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The Schurter Group is the world's leading Swiss technology company ensuring clean and safe supply of power, ease of use and sophisticated overall solutions.

Electronic Components:
Components encompasses the equipment protection, equipment connections, switches and EMC products business units including the measurement service as well as the Solutions unit. Solutions offers business partners a total solution package to fulfill the most demanding customer wishes in their entirety through the coordination and networking of all Schurter core competences.

Quality & Approvals:
Schurter guarantees consistent high quality and absolute reliability in each and every one of its products. Our state-of-the-art manufacturing facilities, as well as our up-to-date technical know-how assures that we can fulfil our motto: “Safe Power – Ease of Use.” Our products carry all major country-specific approvals such as VDE, ENEC, UL, CSA, CCC, METI or KTL.

The quality, environment, occupational health and safety management is certified according to ISO 9001, ISO 13485, ISO 14001, ISO 45001 and IATF 16949. The SIX Sigma Lean Methodology, as well as the EFQM Model are used to further develop the integrated management system at Schurter.

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Bulgin Industry Applications for Consumer Goods (Consumer Electronics)

June 8, 2023

Bulgin is widely recognised as a leading manufacturer of environmentally sealed connectors & components.

With 100 years of experience in the industry, Bulgin continues to innovate & develop products & services to cater for its global customer base across a variety of markets.

Operating in a more robust sector of the consumer electronics market, our products provide the user interfaces for power, switching & indicating for a broad array of applications. Our solutions reliably connect both commercial & domestic appliances ranging from commercial popcorn makers, industrial kitchen appliances, hot holds, commercial dishwashers, vacuum cleaner etc.

The modern day home is filled with many consumer electronics & devices that require reliable electronic components. With smart homes becoming increasingly connected along with the growth of the consumer electronics market, our range of power connection & switch solutions are perfect for meeting the needs of many small or large domestic appliances including brown & white goods as well as outdoor gardening equipment.

• Popcorn Machine
• Mini Drinks Cooler
• Professional Hair Dryer
• Cooker Oven
• Vacuum Cleaner
• High End Jacuzzi
• Portable Alarm Systems
• Coffee Machines
• Food Mixer
• Chest Freezer

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Schurter FXP Fuseholder - Designed for High Power

June 2, 2023
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Fuseholder for Very High Power

• First fuse holder on the market according to the upcoming extension of the IEC standard 60127-6
• Particularly compact for a 6.3x32 fuse holder with this rating
• Easy assembly due to snap-in system
• Safe handling, as it can only be opened with tools

Closed fuse holders are a fine thing: the fuse is well protected and yet easy to replace. According to IEC-60127-6, however, the limit was previously 16 A. Thanks to an extension of this standard initiated by SCHURTER, this is now history. The new FXP fuse holder for 6.3x32 fuse links is designed for rated currents up to 25 A (IEC) or 45 A (UL).

The new Schhurter FXP fuse holder for 6.3x32 fuses has been explicitly designed for high-power applications. Its nominal data is an impressive proof: according to IEC, the rating is 25A @ 500VAC (8 watts) or UL 45A @ 600VAC/VDC. This makes it the first fuse holder that already fulfils the upcoming extension of the IEC standard 60127-6.

Derating at High Ambient Temperatures
What makes the FXP particularly interesting is its high current capability in use at elevated temperatures. The IEC and UL ratings are always based on normal conditions. In the case of a fuse holder, this means +23 °C (IEC) or +25 °C (UL). If a fuse holder is used above these temperatures, its capacity decreases with increasing temperature. The FXP fuse holder still achieves a maximum power of 4 watts even at 50°C ambient temperature. Today's fuse holders of similar size only achieve such values at room temperature. This circumstance creates safety reserves at increased operating temperatures.

Efficient Mounting
Thanks to snap-in mounting technology, the FXP is ready for use in no time. With its IP40 protection class, it is primarily designed for indoor applications. A solder connection is available on the connection side.

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Schurter UHS SMD Fuse

May 9, 2023
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Safe Tripping of Particularly High Currents in the SELV Range
• Very high breaking capacity of up to 2'000A
• Safe tripping in 10s at twice the rated current
• Particularly compact dimensions
• Operating temperature range from -55°C to 125°C

Even in the SELV range, the range of safety extra-low voltage that is harmless to people even when touched, enormously high currents can flow in the event of a short circuit. Schurter responds to this danger with the new, particularly compact SMT fuse UHS.

SELV stands for "Safety Extra Low Voltage". The term sounds self-explanatory and harmless. However, especially with the availability of inexpensive and yet very powerful lithium-ion battery cells, the need to be able to switch off ever higher currents in a controlled manner on inexpensive SMT circuit boards is

The SMT fuse Schurter UHS with rated currents of 50 to 100A, which was specially developed for these cases, ideally meets the requirements for a high and fast breaking capacity in case of massive overcurrent. The immense energies stored in lithium-ion battery cells can be galvanically isolated in a controlled manner.

Compact and Powerful
Space is a scarce commodity on modern printed circuit boards. This makes the minimal "footprint" occupied by the UHS all the more significant. Nevertheless, it manages to disconnect the circuit at twice the rated current within just 10 seconds and thus ensures that the PCB can be constructed in a spacesaving and economical manner.

Danger: Short Circuit
Lithium-ion battery cells can store very high amounts of energy and release it again within a very short time - for example in the event of a short circuit. The UHS has an enormously robust design. Its breaking capacity at 50VDC is 600A, and lower voltages up to 16VDC even allow 2'000A.

Wide Range of Applications
The UHS is designed to operate at ambient temperatures from -55°C to +125°C. This makes it ideal for applications in the automotive sector. However, other applications with potentially very high overcurrent (telecom, data center or power tools) are also perfectly suited.

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Schurter FRM-A and DRM-A Fuse Holder / Fuse Combination

April 27, 2023
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An Optimised Unit for Demanding Requirements
• Designed and optimised for Avionics applications
• FRM-A: Ultra-compact, light and made for harsh environmental conditions
• DRM-A: Whisker-free ceramic fuse with fast tripping characteristics

Very small, light and robust: These are increasingly important requirements of the Avionics industry for the components of their suppliers. Schurter addresses this need with the FRM-A and DRM-A fuse holder/fuse combination.

Minimized dimensions and low weight of Avionics components, their reliability and efficient maintainability are elementary requirements to keep operating costs low. The pressure to reduce the carbon footprint and operate sustainable aircraft fleets is driving the industry. Schurter addresses this need with the most compact and robust Avionics qualified fuse holder on the market, the FRM-A, and the matching SMT fuse DRM-A with a fast-tripping characteristic.

FRM-A: Ultra-Compact and Powerful
It is particularly the modest dimensions that make the Schurter FRM-A closed fuse holder a great one. Not only is it the most compact in its class, but it also shines with its enormous robustness and IP67 protection. Successful vibration, shock and salt mist tests confirm this in an impressive manner. The FRM-A has been developed exclusively for the SMT ceramic fuse DRM-A

DRM-A: Using Gold Against Whisker
Tin whiskers represent a risk for short circuits in electronics. The underlying physical process has not yet been fully identified. However, the problem has always been circumvented by adding lead. But lead is often an undesirable element (RoHS guidelines). The DRM-A therefore completely dispenses with a
lead-containing coating and relies on gold in its place. Gold-plated end caps offer no surface for whiskers to attack. The DRM-A, which was developed specifically for Avionics applications, is suitable wherever the highest demands are made on reliability and robustness. But this does not necessarily have to be at an altitude of 50,000 feet and installed in the FRM-A. Thanks to its design, it is also ideally suited for industrial and telecom applications.

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Schurter UHP Series SMD Fuse for High Currents

March 28, 2023
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Safe Tripping of High-Energy Overcurrent in SELV Voltage Level
• Very high breaking capacity of up to 3000 A
• Safe tripping in 15 s at twice the rated current
• Operating temperature range from -55 °C to 125 °C

With the increased availability of low-cost, high-performance lithium-ion battery cells, there is a growing need to manage higher and higher currents via low-cost, SMD-assembled PCBs.

The dedicated Schurter UHP fuse with rated currents of 50 to 100 A ideally meets the requirements for high breaking capacity and fast tripping in the event of overcurrents by galvanically separating these immense energies stored in Li-Ion batteries in a controlled manner.

Market Situation
With the success of the smartphone, Li-Ion batteries have gained enormously in importance. They are also the key to the success of the even more energy-intensive electric cars, which rely on this very technology. The price per kilowatt hour of a Li-Ion battery pack has fallen to a tenth in the last decade!

Power ∼ Current2
The higher the current on a PCB, the more power must be converted and also dissipated. It is therefore particularly important for such applications to have a reliable fuse that is capable of galvanically separating the circuit in time in case of an overcurrent. The UHP fuse developed by Schurter especially for this purpose disconnects the circuit at twice the rated current within a maximum of 15 seconds and ensures that the circuit board can be built more economically and in a space-saving manner.

High Energy Short Circuit
Li-ion batteries are capable of storing very high amounts of energy and releasing it again within a very short time - for instance in the event of a short circuit. The low internal resistance of the cells can lead to short-circuit currents of up to 3000 A, depending on the configuration. The UHP fuse is built so robustly that it can withstand such high currents at the SELV (Safety Extra Low Voltage) voltage level of up to 63 VDC, and even at 80 VDC it can still provide a performance of up to 2000 A.

Extreme Temperature Range
The UHP is designed to operate at ambient temperatures from -55 °C to +125 °C. This makes it ideally suited for applications in the automotive sector, but also for other applications with potentially large temperature variations.

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Schurter OGN Fuseholder - THR (Through-Hole Reflow)

October 4, 2022

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Through-Hole OGN Fuse Holder for Fully Automated PCB assembly
• Suitable for fully automated PCB assembly
• Reflow capable
• Fully backwards compatible with OGN for THT
• Available with blister tape packaging

The Schhurter OGN fuse holder is a product that has proven itself over decades and has been continuously improved and expanded with new variants. It started with a THT version (Through-Hole Technology), followed by one for SMT (Surface-Mounting Technology). Now Schurter is introducing a third option, which closes the last gap: THR (Through-Hole Reflow).

Highly integrated electronic circuits are almost exclusively assembled with SMT components and soldered in a reflow oven. However, it is sometimes necessary to include THT components on the circuit board. This has a decisive disadvantage: THT components need to be soldered differently, a second soldering process is necessary.

The Solution: THR
In fact, THR components are through-hole components. They are specially designed for automated assembly and high thermal stress in the reflow oven. During the assembly process, a paste is first printed into the vias for the THT pins, and then the component is pushed through the solder paste. As the paste melts in the reflow oven, the liquid solder retracts into the vias due to wetting and capillary forces and forms the solder joint.

OGN: The Classic
The open fuse holder OGN is designed for 5x20 fuses of various types. It naturally complies with the tightened rules of glow wire resistance according to IEC 60335-1. If desired, it can be converted into a closed fuse holder by means of an optionally available cover.

Preassembled Variants to Follow:
In the near future Schurter will offer the OGN for THR pre-assembled with a 5x20 fuse in blister packaging (tape & reel). This according to customer requirements for fully automated PCB assembly. Just as Schurter is already doing with the OGN for SMT today.


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Bulgin Industry Applications for Buildings & Construction (Transport & Infrastructure)

May 17, 2022

Bulgin is widely recognised as a leading manufacturer of environmentally sealed connectors & components.

With 100 years of experience in the industry, Bulgin continues to innovate & develop products & services to cater for its global customer base across a variety of markets.

With ambient & environmental conditions such as water, moisture & extreme temperatures posing a constant threat to transport & infrastructure applications, reliable & robust solutions are vitally important in this sector.

From outdoor lighting & industrial meters to HVAC systems & surveillance cameras, rest assured that our industry leading solutions are built for maximum reliability & performance to support the challenging needs of various indoor, outdoor & industrial applications.

Heavy duty machinery used for construction & building maintenance require components that are equally as rugged as the environments that they operate in. From outdoor lighting & industrial meters to indoor HVAC systems, rest assured that our wide range of switches, indicators & waterproof connectors are built for maximum reliability & performance.

• Air Compressors
• Cherry Pickers
• Wireless Load Sensors
• Terrain / Mud Monitoring Systems
• Smart Metering
• Security Door Switch Panels
• Moisture Meters
• Heating Systems
• Air Cleaning Systems
• Disabled Refuge Systems
• CCTV Cameras

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Hylec DFH02 Plastic PCB Fuse Holder

May 6, 2021

New DFH02 plastic PCB fuse holder with optional transparent insulation cover from Hylec for PCB and thru-hole mounting

Vertical orientation; 22.6mm pitch, UL94V-2 polycarbonate cover

Hylec-APL, the specialist supplier of electrical components and enclosures, has launched a new 5mm x 20mm PCB fuse holder, the DFH02, for either PCB or thru-hole mounting. The DFH02 features a transparent insulation cover which provides protection for the fuse and makes installation and removal simple. This style of fuse holder is the most popular and best-selling type of fuse holder on the market.

Suitable for use in all types of circuits, Hylec’s DFH02 PCB fuse holders provide a secure and safe method for mounting fuses on all types of PCBs and eliminate the problems associated with using fuse clips on a PCB. Easier to install than fuse clips, DFH02 fuse holders are also low-cost and ensure a reliable electrical and mechanical connection.

The 22.6mm pitch DFH02 can be mounted direct to the PCB in horizontal orientation or thru-hole mounted for vertical orientation. Electrical rating is 6.3A at 250VAC maximum.

The base material is thermoplastic, PA66 glass-filled, offering mechanical strength and excellent dimensional stability. It meets UL94V-0 flame-retardancy standards. The transparent insulation cover is rated UL94-V2.

Dimensions of the DFH02 base are: 13.5mm high off the PCB, width 9.0mm, 22.0mm long. Pin pitch is 22.6mm. Total height with cover off the PCB is 15.0mm.


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Schurter UMT-H Fuse Family: Extension 40A and 50A

March 24, 2021

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SMD Ceramic Fuse with Very High Breaking Capacity
• 26 rated currents from 0.16 to 50 A
• International approvals
• Time-Lag T characteristic
• Impermeable to potting compound

The well introduced SMD ceramic fuses of the UMT-H family have been expanded in the form of a 40 A and a 50 A version. Schurter now offers the UMT-H with its Time-Lag T characteristic in a total of 26 rated currents between 160 mA and 50 A.

The UMT-H SMD ceramic fuse now covers a current range from 160 mA to 50 A at voltages of up to 277 VAC and 250 VDC. This makes the cuboid fuse ideal for cost-efficient automated assembly. Its large solder pads ensure excellent heat dissipation.

The UMT-H was specially developed for primary protection in industrial electronics at nominal voltages of up to 277 VAC. Additional areas of application are energy supply, medical technology and telecommunications as well as e-mobility. New market developments show that currents of 40 A and 50 A are increasingly needed for battery-powered applications.

High Inrush Currents
The UMT-H is predestined for use in applications with high inrush currents (e.g. motors) due to its Time-Lag T characteristic. But also newer applications, which increasingly rely on powerful accumulators, often require slow tripping.

Impermeable to Potting Compound
The UMT-H remains tight with most commercially available potting compounds. Therefore, this fuse is especially suitable for high demands. In addition, the high breaking capacity of 1500 A and the cap distance of >10 mm make the UMT-H the ideal choice for explosion protection.


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