High Performance Fuse for Automotive Applications
With the AMO 10.3x38, Schurter launches a high-performance fuse for particularly high voltages up to 800 VDC and currents up to 50 A, which is particularly suitable for automotive applications.
High voltages and high currents occur in electric vehicles in numerous places. Their battery packs with several thousand rechargeable cells store enormous amounts of energy. This in order to meet customer requirements concerning driving performance and range by still providing the shortest possible recharging times. To safeguard this level of power, you need highly reliable high power fuses. Such fuses are required, for example, in the BMS (Battery Management System), for on-board and off-board chargers, DC-DC converters and other systems exposed to high voltages.
Welding Is More Reliable
A weak point of every fuse is the connection between the melting wire and the contact cap. This connection is usually done by a solder joint. In the fuse production process, however, this technology brings quite many difficulties. Creating the connection by welding increases the reliability by far. SCHURTER uses a new, patented process which guarantees highest reliability.
Versatile Mounting Options
The new fuses of the AMO series offer a multitude of possible mounting options. In addition to the classic mounting directly on a printed circuit board, screwable version for surface mounting or even axial mounting are available.
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UST 1206 - New Up To 35 A
In 2008, Schurter launched the first SMT chip fuse in the 1206 format: the UST 1206. Since then, this particularly compact and powerful fuse has enjoyed great popularity. In response to a number of customer requests, SCHURTER is expanding its product portfolio with even more powerful versions of the UST 1206 with rated currents of up to 35 A.
The Schurter UST 1206 is a chip fuse for surface mounting with a “slow-blow” characteristic. This means that it has a high melting integral I2t, thanks to which the fuse does not trip immediately at inrush current peaks higher than the rated current. This is of great importance in many industrial applications (e.g. motors, power converters).
UL 248-14 Characteristic
The UST 1206 was designed for UL 248-14 characteristics. With such fuse-links, the rated current corresponds to the current that interrupts the current flow after several hours. The maximum current that may flow continuously without the fuse-link tripping is around 70 % of the rated current.
New Variants up to 35 A
Previous versions of the UST 1206 had a maximum rated current of 25 A. This range will be increased to 30 A and 35 A with two further variants. The rated voltage is 32 VAC and 63 VDC respectively. The fuse can be operated from -55 °C to +90 °C.
Application Areas
The Schurter UST 1206 is ideally suited for all applications in secondary overcurrent protection where the current requirement is particularly high even at low voltages.
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Plugging Aid and Protection Cover for all OGN Fuse Holders
For the Schurter OGN fuse holder, which is available in THT, SMT and THR technology, Schurter offers a variety of different covers in addition to a dedicated plugging aid. Schurter launches the OGN Adapter for easy mounting and removal of fuses and at the same time serves as a cover for the OGN fuse holders.
The currently available OGN plugging aid is a very useful tool for placing 5x20 fuses into all types of OGN fuse holder. It makes placing and replacing of fuses much easier, especially on densely packed PCBs.
It is often the case that the plugging aid remains in place together with the fuse, which means that the plugging aid also remains in the appliance during operation. However, this is not permitted for safety reasons. With a rated power consumption of 2.5W/10 A, the plugging aid is endangered to overheat. Schurter is now taking this into account with the launch of the new OGN Adapter. At 4W/16A, it is significantly more heat-resistant and has also been tested for glow-wire resistance. It can therefore remain in the device during operation with a clear conscience (VDE approval) and serve as a cover.
The new OGN Adapter can therefore replace two products at once: the cover and the plugging aid. The OGN Adapter is going to replace the existing OGN plugging aids. They are not recommended anymore for new designs and will fall out of the product range soon.
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Launch of a High Reflow Version of the OGN for THR Fuse Holder
The recently launched OGN for THR fuse holder for 5x20 fuses is designed for a reflow process using a temperature of up to 245°C.
To cover cases where higher reflow temperatures are required, Schurter is introducing a new version of the OGN for THR, which can withstand temperatures of up to 260°C.
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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 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.
Applications:
• 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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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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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
increasing.
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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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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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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UK distributor of electrical and electronic components.
