New product announcement on the SFR series of anti-sulfuration chip resistors
Overview
Components used in applications exposed to harsh environments such as automotive systems, industrial equipment, and communications infrastructure are demanding increased sulfuration resistance to ensure long-term reliability. In response, ROHM developed the SFR series featuring an original structure that significantly improves anti-sulfuration performance.
Key Features : Original structure improves sulfuration resistance
Sulfur components are present in the air in various forms due to sulfur and automotive gas emissions. The sulfur particles are adsorbed by metallic surfaces, gradually leading to sulfuration.
The SFR series significantly improves sulfuration performance by utilizing a Ni-Cr sputtered film at the side electrodes as well as adopting the protective layer used in the upper electrodes of 1st generation products. This contributes to greater safety while providing long-term reliability demanded by applications exposed to extreme environments, including automotive sets and industrial equipment.
Application Examples
Lineup
| Part No. | Size |
Rated Power (70°C) (W) |
Max Element Voltage (V) |
Temp. Coefficient of Resistance (ppm /°C) |
Resistance Tolerance (%) |
Resitance Range |
Series |
Operating Temp (°C) |
Automotive Grade (AEC-Q200) |
|
|---|---|---|---|---|---|---|---|---|---|---|
| (mm) | (inch) | |||||||||
| SFR01 | 1005 | 0402 | 0.063 | 50 | +500 / -250 | J (±5%) | 1Ω ～ 9.1Ω | E24 | -55 ～ +155 | Yes |
| ±200 | 10Ω ～ 10MΩ | |||||||||
| ±100 | F (±1%) | 10Ω ～ 2.2MΩ | E24, 96 | |||||||
|
(Jumper Type) Conduction Resistance : 50mΩ Max., Rated Current : 1A |
||||||||||
| SFR03 | 1608 | 0603 | 0.1 | 50 | ±400 | J (±5%) | 1Ω ～ 9.1Ω | E24 | ||
| ±200 | 10Ω ～ 10MΩ | |||||||||
| ±100 | F (±1%) | 10Ω ～ 10MΩ | E24, 96 | |||||||
|
(Jumper Type) Conduction Resistance : 50mΩ Max., Rated Current : 1A |
||||||||||
Related Information
■ Product Information
(PDF：364KB)