KOA introduces two new series of 4 terminal current shunts for high current applications.

Constructed using a solid metal alloy resistance element with copper terminations the device provides superior corrosion and heat resistance and has excellent pulse resistance.

These new shunt resistors are ideal for accurate high current sensing in automotive and industrial applications as well as in pulse…

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For high current applications, KOA has now expanded its existing Power Shunt series by adding the PSJ2 and the PSL2.

The PSJ2 (3920 inch) resistor can measure currents up to 244 A (200 µOhm).

Constructed using a solid metal alloy resistance element with copper terminations the device provides superior corrosion and heat resistance and has excellent pulse resistance.

The PSJ2 and the PSL2 have a…

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KOA's automotive current sensing chip resistors with wide terminations now achieve T.C.R. ±75ppm/K.

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

The better heat dissipation due to these wider terminals helps to save board space. The high…

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The new CFWS-series of fusible power wirewound resistors is now available from KOA.

In normal operation the CFWS series resistor acts as an inrush current control resistor but will safely fuse in specified power overload cases.

The CFWS series is available with 3W or 5W power ratings. Both power ratings are approved to UL1412.

Features:

• Approved by UL1412 (File No.: E134679)
• Flame retardant…

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KOA has developed a ceramic technology, which helps to enhance its current portfolio of thick and thin film technologies.

These new and unique products are based on the future-orientated technologies.

KOA's wide product lineup:

• Current Sensing Resistors
• Thick Film Resistors
• LTCC Substrate
• Network Resistors
• Power Resistors
• Thin Film Resistors
• Thermal Sensors
• Circuit Protectors
• Inductor…

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KOA’s UR73V-series thick film low ohm resistors are designed for current detection, especially in demanding environments. The special facedown construction makes lower resistance values with a low T.C.R. possible.

The low T.C.R of new UR73V-series and its wide operating temperature range of -55 °C to +155 °C make it ideal for applications such as automotive or high reliability DC-DC converters.

…

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KOA’s SMD thin film thermosensitive resistors have a linear positive temperature coefficient and are perfect for temperature sensing, control and compensation.

The nickel based PTC thin film element on an alumina substrate ensures high stability over the entire temperature range.

Features:

• T.C.R.: from +150 to +4500 ppm (25 different  T.C.R's) / K available
• Resistance values: 51 O to 51 kO
• …

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Embedded resistors in a PCB allow the miniaturization of the total packages with improved electrical performance and highest reliability.

The key factors are high density mounting, good high frequency performance, excellent heat dissipation and high reliability by protection.

KOA’s resistors of XR73 series are especially designed for the usage in embedded technologies.These extremely low…

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Ceramic Resistors for Anti Pulse Surge: HPC / PCF Series.

KOA’s original bulk ceramic resistors don’t use a resistive film or wire element – the whole body is the resistive element.

This construction results in an extremely robust device capable of absorbing high pulse currents and voltages.

Product Features:

• Solid ceramic resistor body ideal for HV and surge currents
• Non-inductive
• 25kV…

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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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