KOA Speer RN73H and RN73R Thin Film Resistors
KOA Speer RN73R and RN73H Thin Film Resistors are AEC-Q200 tested and are available in high-precision type. These devices have low-current noise and meet EU RoHS requirements. The RN73R and RN73H series feature an operating temperature range of -55°C to +155°C, with an ambient temperature of +85°C. These resistors offer verified sulfur resistance as per ASTM B 809-95 standards and are suitable for demanding applications with high heat and moisture. The RN73R and RN73H thin film resistors are designed for applications that require high reliability, such as automotive electronics and industrial equipment.
Features
RN73H Thin Film Resistors
- AEC-Q200 Tested
- Endurance of ΔR of ±0.1% at 85°C (3000h)
- High-reliability and high stability at elevated temperatures
- High-temperature exposure of ΔR of ±0.1%
- The glass passivation layer provides improved moisture resistance
RN73R Thin Film Resistors
- AEC-Q200 Tested
- Available in a high precision type of ±0.05%
- Endurance of ΔR of ±0.1% at 85°C (1000h)
- High-humidity protective coating provides improved moisture resistance
- High-temperature exposure of ΔR of ±0.25%
- Suitable for control circuits in various industrial equipment
Applications
- Automotive electronics
- Industrial equipment
- Measurement equipment
Technical Specifications
| Parameters | Values |
|---|---|
| Power rating range | 0.63W to 0.25W |
| Maximum working voltage range | 50V to 200V |
| Maximum overload charge range | 100V to 400V |
| Operating temperature range | -55°C to +155°C |
| Resistance tolerance range | ±0.05% to ±1.0% |
Video
This TTI Tech Specs video for KOA Speer RN73R and RN73H Thin Film Resistors explains that the RN73R provides improved resistance to electrolytic corrosion and high stability compared to existing RN73 thin film resistors. The RN73H series offers enhanced moisture resistance and higher operating temperature, +155°C.
See Video Transcript Below
Video Transcript
KOA Speer’s RN73H and RN73R resistors can tolerate the heat and humidity even longer than the old guy that practically lives in the sauna at the gym. The RN73H and RN73R are metal film resistors designed for high reliability in industrial, medical, transportation, and other high temperature and high humidity applications. They have a protective coating that improves moisture resistance to 85% for 1000 hours at +85°C.
The resistors can be used at temperatures up to +155°C and offer exceptional thermal stability, with TCR as low as ±5ppm/°C. Resistors are available from 10Ω to 1.5MΩ and with standard tolerance down to 0.05%. RN73R resistors offer an improved electrolytic corrosion resistance compared to other RN73 resistors, while the RN73H series is AEC-Q200 qualified for automotive applications.
