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Wirewound Resistors offer power ratings up to 12 W.

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Wirewound Resistors offer power ratings up to 12 W.
Wirewound Resistors offer power ratings up to 12 W.
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April 21, 2014 - Featuring non-inductive Ayrton-Perry winding andnon-magnetic, all-welded construction, MRA Series offers high temperature operation to +350C, which is suited for high-end audio and medical imaging equipment. Axial lead devices provide resistance from 0.01 Ω to 85.0 kΩ, with tolerances of 1%, 5%, and 10%. In addition, resistorsfeature TCR of 90 ppm/C for resistance below 0.99 Ω, 50 ppm/C for resistance from 1.0–9.9 Ω, and 30 ppm/C for resistance of 10 Ω and above.

Vishay Intertechnology Releases New Series of Non-Magnetic, Non-Inductive Axial Lead Wirewound Resistors


Vishay
63 Lincoln Hwy., P.O. Box 4004
Malvern, PA, 19355
USA



Press release date: April 17, 2014

Ideal for Audio and Medical Applications, Devices Feature High Power Ratings to 12 W and Operating Temperature to +350 C

MALVERN, Pa. — 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 Ω, 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

Samples and production quantities of the MRA series are available now, with a lead time of six to eight weeks for larger orders. Pricing for U.S. delivery only starts at $1.40 per piece in 1,000-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.

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