Standard Resistors: Achieving outstanding low temperature characteristics and long-term stability!
The "USR-SF Series" is an ultra-high stability standard resistor that employs stress-free bulk metal foil technology. It achieves low temperature characteristics of ±0.05ppm/℃ at 23℃ ±5℃ and long-term stability, allowing for use in air without the need for expensive and maintenance-intensive oil baths. Additionally, the resistive element is held within a specially designed case, making it suitable for transport even under vibration. 【Features】 ■ New generation stress-free bulk metal foil technology adopted ■ Excellent long-term stability due to the adoption of stress-free bulk metal foil technology ■ Outstanding temperature characteristics of ≦±0.05 ppm/℃ at 23℃ ±5℃ ■ Excellent humidity/air pressure characteristics due to ceramic sealed packaging *For more details, please refer to the PDF document or feel free to contact us.
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【Specifications】 ■Nominal resistance values: 1Ω, 10Ω, 25Ω, 100Ω, 1kΩ, 10kΩ ■Accuracy: ±2ppm ■TCR: ±0.05ppm/℃ ■Aging: ±0.2ppm/year (typical value), ±0.5ppm/year *For more details, please refer to the PDF document or feel free to contact us.
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Alpha Electronics has been providing engineers around the world with "high stability, high precision, and reliability" since 1978 as a manufacturer of Bulk Metal® Foil Resistors. Metal foil resistors are adopted as key components in various products that require precision and reliability, such as automatic test equipment (ATE), precision measuring instruments, electronic scales, aerospace, laboratories, calibration equipment, industrial instruments, semiconductor manufacturing equipment, medical devices, and high-end audio. Our excellent metal foil technology allows us to supply standard resistors that can be used in typical room temperature environments. Alpha Electronics is participating in a joint development program for metal foil resistor standard resistors with the National Metrology Institute of Japan (NMIJ). We aim to connect our solid steps in technology, reliability, and development to the future, striving to be a company with technologies and roles that resonate with the next generation, and we will continue our relentless challenges.
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