Vishay Intertechnology Releases New Series of Non-Magnetic, Non-Inductive Axial Lead Wirewound Resistors
Ideal For Audio and Medical Applications, Devices Feature High Power Ratings to 12 W and Operating Temperature to +350 °C
MALVERN, Pa. - April 17, 2014 - Vishay Intertechnology, Inc. (NYSE: VSH) today introduced a new series of non-magnetic, non-inductive axial lead wirewound resistors with high power ratings to 12 W and high-temperature operation to +350 °C, which is ideal for high-end audio and medical imaging equipment.
For radio frequency (RF) and operational amplifier applications, the non-magnetic and all-welded construction of the Vishay Mills MRA series devices, from the Vishay Dale Resistors division, greatly enhances frequency response. Combined with a non-inductive Ayrton-Perry winding, inductive reactance and signal loss are virtually eliminated.
The resistors provide power ratings from 4 W to 12 W at 25 °C and temperature ranges from -65 °C to +250 °C (characteristic U) and -65 °C to +350 °C (characteristic V). The devices offer resistance from 0.01 Ω to 85.0 kΩ, with tolerances of ± 1 %, ± 5 %, and ± 10 %, and TCR of ± 90 ppm/°C for resistance below 0.99 ?, ± 50 ppm/°C for resistance from 1.0 Ω to 9.9 Ω, and ± 30 ppm/°C for resistance of 10 Ω and above.
MRA resistors are RoHS-compliant and comply with Vishay Green standards.
Device Specification Table:
Model
Power Rating P25° C (W)
Resistance Range (Ω)
Characteristic U +250 °C
Characteristic V +350 °C
MRA-05
4.0
5.0
0.01 to 15.0 k
MRA-10
7.0
10.0
0.05 to 35.0 k
MRA-12
10.0
12.0
0.05 to 85.0 k
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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.
Vishay Intertechnology, Inc. (Vishay) is engaged in manufacturing a portfolio of discrete semiconductors and passive electronic components, which supports designs in the automotive, industrial, computing, consumer, telecommunications, military, aerospace, and medical markets. Vishay designs, manufactures, and markets electronic components that cover a range of functions and technologies. Its products include commodity, non-commodity, and custom products. Vishayâs brands include Siliconix, Dale, Draloric, Beyschlag, Sfernice, MCB, UltraSource, Applied Thin-Film Products, IHLP, HiRel Systems, Sprague, Vitramon, Barry, and BCcomponents. Vishayâs semiconductors products include metal oxide semiconductor field-effect transistors (MOSFETs), diodes, and optoelectronic components. The Companyâs semiconductor components are used for a variety of functions, including power control, power conversion, signal switching, signal routing, signal blocking, two-way data transfer, and circuit isolation.
VISHAY INTERTECHNOLOGY, INC. 
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