KOA’s special anti-sulfuration resistors are intended to be used under harsh environment with a high level of sulfur contamination.

A high reliable material with extremely high sulfuration-proof characteristics is used in the inner top electrodes.

Sulfuration is a phenomenon that the inner electrodes (Ag/Pd-type material) of chip resistors react with sulfur gas which creates silver sulfide.
As…

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The new SLN5, flame  proof, molded SMD current  sensing resistor from  KOA now also allows a power rating of 7W and has a T.C.R. down to ±75ppm/K.

The terminal design absorbs solder junction stress reducing the possibility  of solder cracks.

Features:

• 7W power rating in 4527 inch size
• Ultra-low resistance (5mO) and high accuracy (+-0.5%)
• Low risk of solder cracks
• High reliability
• Flame…

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KOA’s high voltage HV73-series has been expanded with the addition of the new HV73V-types for automotive applications.

The special inner material makes the part suitable for high voltages with improved temperature cycling stability compared to standard resistors. The higher critical resistance allows a higher voltage at higher resistance values. The special coating ensures that higher voltages…

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KOA’s UR73-series thick film shunts are designed for current detection, especially in demanding environments. The special facedown construction makes lower resistance values with a low T.C.R. possible.

Compared to KOA’s existing UR73-series the new UR73V-series has an even better T.C.R. and its wide operating temperature range of -55°C to +155°C makes it ideal for applications such as automotive…

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Applications:

for XR73Z Series:  Communication module, Semiconductor packaging substrate, Smart phone, Tablet PC, Notebook PC, Wearable Device, etc.

for SLZ Series: Automotive; PC Note PCs, Battery packs, AC Adapters, DC-DC converters, etc.

for TLRZ Series: Mobile phones, PDAs, Media players, Computers, etc.

Thick Film SMD Jumper (RK73Z, XR73Z)

- No additional layer will be used, when two…

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KOA’s RK73G-series thick film resistors are designed for high precision applications using standard thick film technology.

Compared to KOA’s general-purpose RK73-series, the new RK73G-series has an even better T.C.R. of ±50 ppm/K and its low resistance tolerance of ±0.25 % is ideal for precision designs such as high-accuracy sensing or voltage detection circuits in automotive and industrial…

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KOA’s new WU73-series, available in 0612 size and in the resistance range 10mO to 100mO, is suitable for current sensing and offers a better T.C.R. compared to the standard wide terminal series.

The WU73-series with its 90° rotated design offers several advantages compared to standard resistor footprints, such as:

• Higher reliability in power applications
• Improved terminal strength
• Lower…

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KOA has extended its TLR-Serie with power rating of 3 Watt on the size 2512.

 Applications:

• Current sensing for CPU
• Inverter power supplies
• DC-DC converters
• Mobile device etc.

Features:

• Ultra low resistances (0.5 mO), suitable for use small equipment
• Excellent high-frequency characteristics
• Filletless products (the soldering part of this
  product is only a bottom electrode)
• Automati…

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