If all electrical specifications are equal, the UMT-H offers several advantages compared to cylindrical fuses, especially during assembly. For example, the quadratic design prevents devices from rolling away during placement or during reflow soldering. Due to the position of the device markings, key information about the fuse can be seen immediately. In addition, the UMT-H from SCHURTER, with dimensions of 5.3 x 16 mm, is somewhat more compact than traditional cylindrical fuses in the 5 x 20 mm format.

Besides a wide range of applications in power circuits and sensors, the UMH-H is particularly well suited for the primary protection of power supply units. A further application area is in industrial electronics. The high breaking capacity of 1500 A and the spacing between the end caps of >10 mm also make these devices useful in applications that involve explosion protection (IEC 60079-11). Further, with a rated voltage up to 277 VAC along with cURus approval, these fuses are ideally suited for lighting applications in the US market.

Microsite UMT-H

With the new 50 mA version of the USFF 1206, SCHURTER is offering a true market innovation. The surface mount chip fuse sets itself apart from standard commercial products through a lower voltage loss and an exact opening time. The wire-bonding technology used in the USFF 1206 allows stable, reliable operation at ambient temperatures from -55°C to 90°C, making it ideal for protection of applications such as in sensors, ICs, and batteries. The new fuse is particularly well suited for the protection of smart metering systems. The USFF 1206 has cURus certification, is halogen-free and conforms to RoHS. With these characteristics, the USFF 1206 fuse is also an excellent choice for lead-free systems.

Datasheet USFF 1206

As a leading producer of fuse holders and power sockets, SCHURTER manufacturers a large number of products made of plastic materials with high glow-wire ratings. These are above all shock-safe fuse holders in the successful FPG series, which are available in a wide range of shapes and sizes as well as fuse blocks for assembly on circuit boards. Power connectors rated for 10 A and 16 A, including with a wide range of assembly types and various terminals, also meet these stricter requirements.

SCHURTER thus fulfills and exceeds the strict guidelines concerning fire prevention for electrical devices that are operated in households unattended. Which appliances are considered to fall under the «unattended» category and thus need components of this glow-wire category is defined in standard IEC 60335-2. Examples of such appliance types are dishwashers, coffee machines, washing machines and kitchen stoves.

Household Equipment

White paper

The CSO clip is available in solder and screw/rivet versions. The solder version allows direct mounting on a printed circuit board by means of through-hole technology. The screw/rivet version provides additional flexibility for basic designs. Due to the special copper alloy both versions are characterized by a strong clamping force resulting in minimal power loss.

The CSO fuse clip is ideal for a wide range of PV and other DC applications including inverters, battery charge controllers, and string fuse holders. Furthermore, the CSO is well suited for applications in the e-mobility and industrial electronics sectors. The fuse clip conforms to RoHS specifications and is currently the only photovoltaic clip on the market with cURus approval.

SCHURTER also offers the ASO 10.3x38 PV fuse to fit the new CSO fuse clip. The fuse clip also supports other fuses with a 10.3 mm diameter of any length. This includes, for instance, 10.3x85 mm fuses for higher voltages.

Microsite CSO

SCHURTER is initially offering the SHT 6.3x32 in ten rated currents from 1 to 8 A. The fuse stands out due to its high breaking capacity of 1500 A at a voltage rating of 500 VAC. Besides a wide range of applications in the energy and industrial sectors, the SHT 6.3x32 is especially well suited for the protection of 3-phase systems.

SCHURTER offers the SHT 6.3x32 as a fuse link or a version with pigtails. Fuse links can be used in clips and fuse holders, which allows easy replacement of fuses without de-soldering. SCHURTER offers a broad range of such clips and fuse holders suited for use with the SHT 6.3x32. The pigtail version allows direct assembly on printed circuit boards by means of through-hole technology and soldering.

As a fuse that conforms to RoHS, the SHT 6.3x32 can be put to use in lead-free systems. Compatibility with the most important competitive products allows SCHURTER to offer the SHT 6.3x32 as a form, fit and function substitute product. The SHT 6.3x32 fuse is cURus approved.

Datasheet SHT 6.3x32

Datasheet SHT 6.3x32 Pigtail

New Fuses

Fuses

SelectorNon Resettable Fuses

SCHURTER offers the UMF 250 in five rated currents from 500 mA to 10 A. The fuse is characterized by its high breaking capacity of up to 200 A at rated voltage. With the UMF 250 both primary and secondary protection on SMD PCBs is possible. Applications include protection of power supplies, medical equipment, and devices for home and industrial use.

As a RoHS compliant fuse, the UMF 250 can be used with lead-free soldering processes. The compatability of the solder pads with major competitors' products allows SCHURTER to offer the UMF 250 as replacement product. Fuses according to IEC 60127-4 are considered as Universal Modular Fuses (UMF). Furthermore, the product includes the VDE and cURus approval.

Datasheet UMF 250

New Fuses

Fuses

SelectorNon Resettable Fuses

The ASO solar fuse has been specifically designed for the protection of photovoltaic systems. This fuse can safely protect PV modules and conductors from reverse overcurrent conditions.

As PV systems have grown in size, so have the corresponding voltage requirements. This increase in system voltage has typically been intended to minimise power loss associated with long conductor runs. Standard circuit protection devices are not designed to completely protect photovoltaic panels. However, the ASO solar fuse is UL listed to safely interrupt faulted circuits up to this demanding volt-age level.

SCHURTER offers 13 different ampere ratings to match specific requirements of various applications, such as inverters and battery charge controllers or to be used as inline or string fuse. A PCB version and bolted contacts are also available on request. Moreover, SCHURTER provides the appropriate touch-safe fuse holder (FSO) and fuse clip (231660).

The product includes UL approval and is RoHS compliant. VDE approval is currently in process.

Datasheet ASO 10.3x38

New Fuses

Fuses

SelectorNon Resettable Fuses

Renewable Energy

SCHURTER introduces the new solar fuse ASO and fuseholder FSO with quick-acting characteristic to protect photovoltaic and similar DC-applications. The new product extend the strategic segment “renewable energy�? with a 1000 VDC fuse with a current range from 1 A to 30 A and a touch safe fuseholder FSO. As PV systems have grown in size, so have their circuit protection requirements such as voltage rating. This high performance DC fuse is in a compact 10.3x38 mm package.

The ASO fuse protects PV modules, conductors and similar DC-applications from the potentially devastating effects of a low short circuit current in systems upwards of 1000 VDC.

The wire bonding makes the fuse stable and reliable with an operating temperature range of -40°C to 85°C. The ASO fuse is especially designed for protecting DC low short circuit current and overvoltage conditions like solar panels (strings), inverters, battery charges and combiner boxes. The touch safe fuseholder FSO is designed for grid-tie or off-grid array combiners and standard DIN rail mount.

The products includes cURus agency approval, are RoHs compliant and halogen-free.

Datasheet ASO 10.3x38

Datasheet FSO

New Fuses

Fuses

SelectorNon Resettable Fuses

SelectorFuseholder

Renewable Energy

SCHURTER has extended the current rating of the successful 250 VAC, IEC time-lag sub miniature SMD fuse UMZ 250. This SMD fuse with clip is now available in 18 different current ratings from 80 mA to 4 A.

The UMZ 250 offers time-lag T characteristic according to IEC 60127-4 and is an Universal Modular Fuse (UMF) with rated current values from 80 mA up to 4 A. The approved voltages are 250 VAC and 125 VDC according to IEC and 277 VAC and 250 VDC according to UL. The device provides a high breaking capacity of up to 200 A at rated voltage.

The ultra-small profile allows fast cycling when used with pick & place electronic assemblies. Beyond the benefit of space-saving designs, one single fuse can be used for primary and secondary over-current protection. The target applications are over-current protection for power supplies, storage systems, wireless base station and many other electronic systems, all with the same SMD fuse.

The UMZ 250 is RoHS compliant and carries all main approvals. It is offered in plastic bags and standard reels.

Datasheet UMZ 250

New Fuses

Fuses

The UMZ 250 offers time-lag characteristic according to IEC 60127-4 and is a Universal Modular Fuse (UMF) with rated current values from 315 mA to 4 A. The product provides a high breaking capacity of up to 200 A at 250 VAC. The clip option allows a customer fuse replacement with the benefit that only the UMT 250 fits. This has the advantage that e.g. the technical specification in contrast to a 5x20 mm solution does not vary and spare fuses could be sold through the equipment manufacturer. With this setup, the manufacturer receives important information about equipment failures in the field. Gold cap are required, in order that the clip and the fuse are not soldered together in the reflow soldering process. As replacement, the standard UMT 250 can be used instead.

Datasheet

SCHURTER released today the first 1206 chip fuse series UST 1206 with rated current values up to 25 A and slow-blow characteristic. It boasts high melting I²t values, which provides good inrush withstand performance. It's a cost-effective solution for applications in which high inrush current and on-off cycling are present.

The UST 1206 with characteristics according to UL 248-14 complements the previously introduced and successful USI 1206 with characteristic according to IEC 60127-4. The current ratings of the UST 1206 range from 7 to 25 A with voltage ratings up to 63 VDC and 32 VAC. The device provides a breaking capacity of up to 400 A at defined voltage and an operating temperature range of - 55 °C to +90 °C.

The fuse is designed to provide secondary over current protection in power inverters, back lighted DC-AC inverters for monitors, wherein power consumption is high at a low voltage level, e.g. 5 or 12 VDC.

The legend marking on each fuse allows a clear visual identification. The fuse is approved according to UL 248-14 and holds a cURus approval. The device is RoHS compliant and is supplied on tape and reel either with 1k or 5k or 15k pieces.

Datasheet