WSK1216 Current Sense Resistor offers inductance down to 0.5 nH.

Press Release Summary:

Incorporating solid metal manganese-copper alloy resistive element of TCR less than 20 ppm/°C, WSK1216 resistor provides power density of 260 W/in². With temperature range from -65 °C to +170 °C and maximum solder temperature of 350°C for 30 s, device offers thermal EMF less than 3 μV/°C. Providing kelvin 4-terminal connection, unit enables power rating of 3W in compact 1216 case size and is ideal for current sensing and high pulse load applications.


Original Press Release:

Vishay Intertechnology WSK1216 Power Metal Strip®Resistor Delivers High Power Density and Increased Measurement Accuracy

Featuring a 4-Terminal Connection, Device Offers Power to 3 W and Resistance of 0.001 Ω in 1216 Case Size.

Vishay Intertechnology, Inc. (NYSE: VSH) today announced a new surface-mount Power Metal Strip® current sense resistor that provides a high power rating of 3 W in the compact 1216 case size. The Vishay Dale WSK1216 features a Kelvin 4-terminal connection for increased measurement accuracy, while its extremely low resistance of 0.001 Ω minimizes power losses to improve end product efficiency.

Providing a power density of 260 W/in², the WSK1216 allows designers to save board space in high-power circuits by utilizing the smallest resistor possible. The device's 4-terminal connection enables higher accuracy and a reduction in system errors compared with a 2-terminal device due to decreased temperature dependency.

The WSK1216's advanced construction incorporates a solid metal manganese-copper alloy resistive element with low TCR (< 20 ppm/°C) and tolerances down to 1%. This results in a higher-power resistor in a smaller size that maintains the superior electrical characteristics of the Power Metal Strip construction. A proprietary processing technique produces a resistance value of 0.001 Ω. The device provides low thermal EMF (< 3 μV/°C), very low inductance down to 0.5 nH, a temperature range from -65 °C to +170 °C, and a maximum solder temperature up to 350 °C for 30 s.

The resistor released today is ideal for all types of current sensing, voltage division, and high pulse load applications in power management for automotive electronic controls such as engine, transmission, anti-lock brake, intelligent parking brake, audio, and climate controls; and inverter controls for down-hole test and measurement equipment and commercial HVAC systems. The device is RoHS-compliant, halogen-free, and Vishay Green.

Samples and production quantities of the WSK1216 are available now, with a lead time of six to eight weeks for larger orders. Pricing for U.S. delivery only starts at $0.15 per piece in 10,000-piece quantities.

Vishay Intertechnology, Inc., a Fortune 1000 Company listed on the NYSE (VSH), is one of the world's largest manufacturers of discrete semiconductors (diodes, MOSFETs, and infrared optoelectronics) and passive electronic components (resistors, inductors, and capacitors). These components are used in virtually all types of electronic devices and equipment, in the industrial, computing, automotive, consumer, telecommunications, military, aerospace, power supplies, and medical markets. Vishay's product innovations, successful acquisition strategy, and "one-stop shop" service have made it a global industry leader. Vishay can be found on the Internet at www.vishay.com. Power Metal Strip is a registered trademark of Vishay Intertechnology. http://www.vishay.com/ppg?30189 (WSK1216)

Vishay Contact:

Andrew Post

Senior Manager,

Global Communications

Vishay Intertechnology, Inc.

Telephone: 1 610 251-5287

Fax: 1 610 889-9429

Email: andrew.post@vishay.com

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