KOA Speer Introduces High Reliability, Ultra Precision Metal Film Chip Resistors - RN73R Series

Bradford, PA - May 2, 2019 - KOA Speer Electronics has developed the new high reliability RN73R series metal film chip resistors to meet the demanding requirements of high heat and high moisture applications. These new resistors provide improved electrolytic corrosion resistance and high stability compared to KOA’s existing RN73 thin film resistors. The RN73R offers excellent heat tolerance with an operational temperature range of -55°C ~ +155°C and a rated ambient temperature of +85°C, as well as improved moisture tolerance of 85% for 1,000 hours at 85°C.

Power ratings and sizes for the new RN73R are 0.063W (0402), 0.1W(0603), 0.125W (0805), and 0.25W (1206) with a resistance range of 10 ~ 1.5MΩ, resistance tolerances ranging from ±0.05% ~ ±1% and T.C.R.s of ±5, ±10, ±25, ±50 and ±100ppm/°C.

New RN73R series metal film flat chip resistors are ideal for applications that demand high reliability such as automotive electronics, industrial devices, medical devices, gain adjustment resistors for OP amp circuits, and dividers for power supply voltage monitors.

The RN73R series of resistors meet EU-RoHS requirements. Lead time is XXX weeks. Samples are available upon request.

About KOA Speer:

KOA Corporation, whose global presence includes corporate headquarters in Japan, and sales locations in the USA, Germany, China and Singapore, offers a wide range of products which include thick and thin film resistors, current sensing resistors and resistor arrays; thermal sensors, fuses and varistors; wire wound, multilayer, power and thin film inductors; LTCC's and modules. KOA Speer Electronics, an affiliate of KOA Corporation, has served the electronics industry since 1980. Visit