ThomasNet News Logo
Sign Up | Log In | ThomasNet Home | Promote Your Business

Vishay's RNC90Z Military-Established, Bulk Metal® Z-Foil Reliability Resistors Combine Extended Resistance Tolerance Down to ±0.005%, TCR of ±0.2 ppm/°C, and ESD Immunity up to 25 kV

Print | 
Email |  Comment   Share  

(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)

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

Press release date: January 28, 2009

Vishay Foil Resistors Are Not Restricted to Standard Values, and Vishay Can Supply "As Required" Values (e.g,. 100 kW vs. 100.123 kW) at No Extra Cost or Delivery Time

MALVERN, Pa. - Jan. 28, 2009 - Vishay Intertechnology, Inc. (NYSE: VSH) today announced that it has extended the resistance tolerance of the RNC90Z family of military-established, Bulk Metal Z-Foil reliability resistors down to 0.005 %.

As "R" level established reliability resistors, RNC90Z devices are military-qualified to MIL PRF 55182/9, the standard for military and aerospace applications requiring long-term stability. The resistors' ability to retain their initial value through temperature change, load application, frequency shift, and short-time overload is unmatched in the industry. Designers can expect the RNC90Z devices to display parts-per-million changes in service, as opposed to percentage changes that occur with thick and thin film resistors.

The enhanced devices offer a broad resistance range of 30.1 W to 121 kW, very low TCR values of 0.2 ppm/C over an extended temperature range of 55C to +175C, and a load-life stability of 0.005% for 2000 hours at +125C. Vishay Foil resistors are not restricted to standard values, and Vishay can supply "as required" values (e.g., 100 kW vs. 100.123 kW) at no extra cost or delivery time. The resistors feature a power rating of 0.6 W at +70C and 0.3 W at +125C, with a maximum working voltage of 300 V. Each device measures 0.105 in. by 0.300 in. (2.67 mm by 7.62 mm), with a height of 0.326 in. (8.28 mm), and typically weighs 0.6 grams. While other resistor technologies can take several seconds or even minutes to achieve a steady-state thermal stabilization, the RNC90Z devices have an almost instantaneous thermal stabilization time of <1 second, and a nearly immeasurable 1.0-ns rise time, effectively without ringing. The ultimate resistors for analog applications, the devices are built to handle unconventional environmental conditions above and below the surface with minimal drift. Their construction guarantees a high level of reliability, and provides high resistance to thermal shock, moisture, mechanical shock, and vibrations.

With thick or thin film resistors, there is a continuous load life shift over time. Conversely, Vishay has products that have been in production for 45 years without showing any change in their characteristics after the initial run up. Where required, this run up can be removed by post-manufacturing conditioning, which renders the end value of the resistor virtually the same as the initial value when returned to room temperature. A short-time overload of 6.25 X rated power has no effect on the resistance of RNC90Z resistors once they normalize from the resultant temperature.

Offering the utmost in ESD immunity, the resistors withstand electrostatic discharges up to 25 kV, for increased reliability, and offer a non-inductive (<0.08 H), non-capacitive design. The RNC90Z devices are available only with tin/lead alloy terminations, and offer 0.15-in lead spacing, with a 0.2-in version available, the RNC90S.

Prototype samples and production orders of the RNC90Z resistors are available now, with lead times from eight weeks.

Vishay Intertechnology, Inc., a Fortune 1,000 Company listed on the NYSE (VSH), is one of the world's largest manufacturers of discrete semiconductors (diodes, rectifiers, transistors, and optoelectronics and selected ICs) and passive electronic components (resistors, capacitors, inductors, sensors, and transducers). These components are used in virtually all types of electronic devices and equipment, in the industrial, computing, automotive, consumer, telecommunications, military, aerospace, and medical markets. Its product innovations, successful acquisition strategy, and ability to provide "one-stop shop" service have made Vishay a global industry leader. Vishay can be found on the Internet at

Print | 
Email |  Comment   Share  
Contacts: View detailed contact information.


Post a comment about this story

(your e-mail address will not be posted)
Comment title:
To submit comment, enter the security code shown below and press 'Post Comment'.

 See related product stories
More .....
 See more product news in:
Electronic Components and Devices
 More New Product News from this company:
Wireless Charging Receiving Coil serves 10 W applications.
Silicon PIN Photodiodes offer sensitive area of 0.85 mm.
DrMOS Power Stages deliver high current, efficiency, density.
Integrated Synchronous Buck Regulator enables design simplicity.
Miniature Immersion Sensor accelerates fluid temperature reading.
More ....
| Featured Manufacturing Jobs
 Other News from this company:
Vishay Intertechnology MC AT Professional Automotive Resistors AEC-Q200-Qualified Over Entire Resistance Range
Vishay Intertechnology Wins EDN China First 10 Years of Innovation Award for Passive Components and Sensors
Vishay HiRel Systems LLC Earns ISO 14001:2004 Certification for Dover, Duluth, and Dominican Republic Plants
Vishay Intertechnology Provides Direct Link to Featured Products with new iPad App
Vishay Intertechnology Honored With 2013 TTI Europe Supplier Excellence Award
More ....
 Tools for you
Watch Company 
View Company Profile
Company web site
More news from this company
E-mail this story to a friend
Save Story
Search for suppliers of
Military Specification Resistors
Metal Foil Resistors
Join the forum discussion at:
Wired In

Home  |  My ThomasNet News®  |  Industry Market Trends®  |  Submit Release  |  Advertise  |  Contact News  |  About Us
Brought to you by        Browse ThomasNet Directory

Copyright © 2014 Thomas Publishing Company. All Rights Reserved.
Terms of Use - Privacy Policy

Error close

Please enter a valid email address