Editor Contact Information
Kory Schroeder
Product Engineering Manager
Stackpole Electronics Inc.

Moisture withstanding performance of Tantalum Nitride technology with lower cost...


RALEIGH, NC (April. 7, 2009) – Stackpole’s RNCS series of passivated Nichrome chip resistors are an ideal low-cost alternative for expensive and hard-to-find tantalum nitride chip resistors. Using a superior substrate material, a unique proprietary Nichrome alloy, and a special hydrophobic polymer inner passivation, the RNCS series exhibit performance similar to tantalum nitride solutions.

Some customers or applications require operation in humid or high moisture environments or have experienced corrosion problems with standard Nichrome thin film resistors. For those customers long term extended humidity testing is essential before a part can be considered for usage on a design. The RNCS series has now surpassed 3000 hours of 95C/90% humidity testing at low power loading. Contact Stackpole Marketing for details of this 3000 hour testing as well as other environmental testing.

The RNCS series is available in sizes from 0402 to 2512, resistance values from 10 ohms to 1 Mohm, with 0.1% tolerance and 25 ppm TCR standard. This series also offers outstanding electrical stability and environmental stability performance that would be expected from a precision resistor.

The standard packaging is tape and reel in 4K, 5K, and 10Kpc quantities depending on part size. Most sizes and resistance values are also offered in 1K reels, making them an outstanding choice to support quick turn shortages. Pricing varies with size, tolerance, and TCR and ranges from $0.02 to $0.30 each in reel quantities. The most commonly used values in sizes 0603, 0805, and 1206 are currently in stock at Digi-Key.

For more information about Stackpole products, contact Stackpole Electronics Inc. at 2700 Wycliff Road, Suite 410, Raleigh, N.C. 27607; phone 919-850-9500; fax 919-850-9504; email marketing@seielect.com; or visit the Web site at www.seielect.com.

Stackpole Electronics Inc. is a leading global manufacturer of resistors supplying to the world’s largest OEMs, contract manufacturers and distributors. Headquartered in Raleigh, N.C., the privately held company began manufacturing in 1928 as part of Stackpole Carbon Company in St. Mary’s, Pennsylvania. Now affiliated with Akahane Electronics, Stackpole has manufacturing facilities in Japan, Taiwan, China and Mexico; warehousing facilities in El Paso, Guadalajara, Hong Kong and Japan; and sales offices in Tokyo, Hong Kong and Taiwan.