Products Portfolio
Our portfolio comprises products in a variety of resistor and package configurations to meet the needs of a wide range of applications: discrete resistors and resistor networks in surface mount and through-hole (fixed-lead) configurations; customized chip resistor networks; precision trimming potentiometers; and discrete chips for use in hybrid circuits. Our foil resistors and current sensors are used in applications requiring a high degree of precision and stability, such as in medical testing equipment, high performance audio equipment, precision measuring instruments, aerospace, and military applications.
VPG Foil Resistors
The resistance stability of Bulk Metal® Foil resistors against changes in temperature and over time makes them excellent metrological standard resistors. Without needing the oil baths that conventional standard resistors require, national standard institutes and local calibration laboratories in Japan use our standard resistors both for primary and secondary standards. Our standard resistors are available variety of models to fit a wide range of applications.
In addition Alpha Electronics has strong capabilities in production of custom products - tailored to your specific needs.
Do not hesitate contacting: sales-alpha@alpha-elec.co.jp
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Bulk Metal® Foil Resistors - Surface Mount (SMT)
NEW HRU Series
Ultra stable flagship primary standard resistor
NEW RBEE, RBFE Series
High-Precision Bulk Metal® Foil Chip Resistor (Flip-Chip)
with Extended Range over 0.5ΩNEW RWBX, RWCX
Precision SMD Bulk Metal Foil Resistor TCR: 0±5ppm/℃
(Wraparound Terminal)NEW RWA, RWB, RWC
Precision SMD Bulk Metal Foil Resistor
(Wraparound Terminal)MPP, MQP Series
Z Foil Ultra-Precision SMT Resistor
(Molded, J-Lead Terminal)MP, MQ Series
Ultra-Precision SMT Resistor (Molded, J-Lead Terminal)MU Series
Ultra Precision SMT Resistor
1-2-3Network
(Molded, J-Lead Terminal)RBD, RBF, RBH Series
Ultra Precision SMT Current Sense Resistor(Flip-Chip)CSM Series
High Precision, Current Sensing, Power Surface Mount, Metal Strip Resistor
Bulk Metal® Foil Resistors - Through-hole
NEW HRU Series
Ultra stable flagship primary standard resistor
NEW RBEE, RBFE Series
High-Precision Bulk Metal® Foil Chip Resistor (Flip-Chip)
with Extended Range over 0.5ΩNEW MATF, MCTF Series
Precision Thin Film Resistor
(Transfer Molded)NEW RWBX, RWCX
Precision SMD Bulk Metal Foil Resistor TCR: 0±5ppm/℃
(Wraparound Terminal)NEW TMP Series
Precision SMD Thin Film Resistor
(Molded, J-Lead Terminal)USR-SF Series
Stress Free Ultra-Stable Primary Standard ResistorNEW RWA, RWB, RWC
Precision SMD Bulk Metal Foil Resistor
(Wraparound Terminal)MA, MB, MC, MD Series
Ultra-Precision Resistor
(Transfer Molded)PE Series
Ultra Precision Shunt Resistor
(10 Watts, TO Package)HC, HD, HG Series
Ultra Precision Resistor
(Hermetically Sealed)HK, HL Series
Zero-TCR Ultra Precision Resistor
(Hermetically Sealed)SC Series
Ultra Precision Resistor Network
(Case-Encapsulated)SE, SF, SS Series
Precision Resistor Network
(Conformally Coated)VFP-3, VFP-4 Series
High Precision
Power and Current Sensing
Resistors
Thin Film Resistors
NEW HRU Series
Ultra stable flagship primary standard resistor
NEW RBEE, RBFE Series
High-Precision Bulk Metal® Foil Chip Resistor (Flip-Chip)
with Extended Range over 0.5ΩNEW MATF, MCTF Series
Precision Thin Film Resistor
(Transfer Molded)NEW TMP Series
Precision SMD Thin Film Resistor
(Molded, J-Lead Terminal)TLA, TLC Series
Precision Thin Film Resistor
(Conformally Coated)
Thermosensitive Resistors and Temperature Sensors
Custom Products
NEW HRU Series
Ultra stable flagship primary standard resistor
NEW RBEE, RBFE Series
High-Precision Bulk Metal® Foil Chip Resistor (Flip-Chip)
with Extended Range over 0.5ΩNEW MATF, MCTF Series
Precision Thin Film Resistor
(Transfer Molded)NEW RWBX, RWCX
Precision SMD Bulk Metal Foil Resistor TCR: 0±5ppm/℃
(Wraparound Terminal)NEW TMP Series
Precision SMD Thin Film Resistor
(Molded, J-Lead Terminal)
Standard Resistors
Bulk Metal® Foil Resistors - Surface Mount (SMT)
| Products | Appearance | Brief Specification | ||
|---|---|---|---|---|
| NEW RBEE, RBFE Series High-Precision Bulk Metal® Foil Chip Resistor (Flip-Chip) |  | Rated Power: 0.5W, 1W Resistance Range: 0.5Ω - 10kΩ Resistance Tolerance: ±0.5% - ±1% TCR : 0±10ppm/°C,0±25ppm/°C |  | |
| NEW RWBX, RWCX Precision SMD Bulk Metal Foil Resistor TCR: 0±5ppm/℃ (Wraparound Terminal) |  | Rated Power: 0.2W, 0,3W @70℃ Resistance Range: 30Ω - 30kΩ Resistance Tolerance: ±0.02%, ±0.05%, ±0.1% TCR: ±5ppm/°C AEC-Q200 Qualified | | |
| NEW RWA, RWB, RWC Precision SMD Bulk Metal Foil Resistor (Wraparound Terminal) |  | Rated Power: 0.1W, 0.2W, 0,3W @70℃ Resistance Range: 5Ω - 30kΩ Resistance Tolerance: 0.01%, ±0.02%, ±0.05%, ±0.1% TCR: ±2ppm/°C AEC-Q200 Qualified | | |
| MPP, MQP Series Z Foil Ultra-Precision SMT Resistor (Molded, J-Lead Terminal) |  | Rated Power: 0.2W, 0.25W @70°C/0.1W, 0.125W @125°C Resistance Range: 30Ω - 40kΩ Resistance Tolerance: 0.01%, ±0.02%, ±0.05%, ±0.1% TCR: ±0.2ppm±1.8ppm/°C | | |
| MP, MQ Series Ultra-Precision SMT Resistor (Molded, J-Lead Terminal) |  | Rated Power: 0.1W, 0.125W Resistance Range: 30Ω - 60kΩ Resistance Tolerance: ±0.05%, ±0.1% TCR : 0±5ppm/°C | | |
| EP, EQ Series Ultra-Precision SMT Resistor (Wire-Bondable) |  | Rated Power: 0.1W, 0.125W Resistance Range: 30Ω - 60kΩ Resistance Tolerance: ±0.05%, ±0.1% TCR : 0±5ppm/°C | ||
| MU Series Ultra Precision SMT Resistor 1-2-3Network (Molded, J-Lead Terminal) |  | Rated Power: 0.05W/Element Resistance Range: 10Ω - 20kΩ Resistance Tolerance: ±0.02% - ±0.5% (Absolute) ±0.01% - ±0.5% (Matching) TCR : 0±5ppm/°C(Absolute) ±1ppm/°C(Tracking) | | |
| RBD, RBF, RBH Series Ultra Precision SMT Current Sense Resistor(Flip-Chip) |  | Rated Power: 0.5W,1W, 1.5W Resistance Range: 0.01Ω - 1Ω Resistance Tolerance: ±0.5% - ±5% TCR : 0±10ppm/°C,0±25ppm/°C,0±50ppm/°C | | |
| SMR1DZ, SMR3DZ Series Ultra High Precision Ultra-Precision Resistor Z Foil Molded Surface Mount Resistor |  | Rated Power: 0.25W, 0.6W Resistance Range: 5Ω - 80kΩ Resistance Tolerance: Up to ±0.01% TCR : 0.05ppm/°C typical (0°C - +60°C) 0.2ppm/°C typical (-55°C - +125°C) | | |
| CSM Series High Precision, Current Sensing, Power Surface Mount, Metal Strip Resistor |  | |
Bulk Metal® Foil Resistors - Through-hole
| Products | Appearance | Brief Specification | ||
|---|---|---|---|---|
| MA, MB, MC, MD Series Ultra-Precision Resistor (Transfer Molded) |  | Rated Power: 0.25W, 0.6W, 1.0W @70°C/0.125W, 0.3W, 0.5W@125°C Resistance Range: 1Ω - 400kΩ Resistance Tolerance: ±0.005% - ±1.0% TCR : 0±1ppm/°C, 0±2.5ppm/°C 0±5ppm/°C, 0±15ppm/°C | | |
| FLA, FLB, FLC Series Precision Resistor (Conformally Coated) |  | Rated Power: 0.125W - 0.25W Resistance Range: 1Ω - 200kΩ Resistance Tolerance: ±0.01% - ±0.1% TCR : 0±2.5ppm/°C, 0±5ppm/°C | | |
| SLD, SM Series Ultra-Precision Resistor 1-2-3 Network |  | Rated Power: 0.25W, 0.3W Resistance Range: 50Ω - 30kΩ Resistance Tolerance: 0±0.02% - ±0.1% (Absolute) ±0.01% - ±0.1% (Tracking) TCR : 0±2.5ppm/°C, 0±5ppm/°C (Absolute) ±0.5ppm/°C (Tracking) | | |
| PSB Series Ultra Precision Shunt Resistor (40 Watts) |  | Rated Power: 12W ( 40W with Heat Sink) Resistance Range: 0.001Ω - 1Ω Resistance Tolerance: ±0.1%, ±0.5%, ±1.0% TCR : 0±5ppm/°C, 0±15ppm/°C | | |
| PB, PC Series Ultra Precision Shunt Resistor (10 Watts) |  | Rated Power: 2W ( 10W with Heat Sink) Resistance Range: 0.002Ω - 50kΩ Resistance Tolerance: ±0.01% - ±5.0% TCR : 0±2.5ppm/°C, 0±5ppm/°C, 0±15ppm/°C | | |
| PD Series Ultra Precision Shunt Resistor (8 Watts, TO-220) |  | Rated Power: 1.5W (8W with Heat Sink) Resistance Range: 0.1Ω - 10kΩ Resistance Tolerance: ±0.02% - ±5% TCR : 0±2.5ppm/°C, 0±5ppm/°C, 0±15ppm/°C | | |
| PE Series Ultra Precision Shunt Resistor (10 Watts, TO Package) |  | Rated Power: 1.5W (10W with Heat Sink) Resistance Range: 0.5Ω - 500Ω Resistance Tolerance: ±0.01% - ±5% TCR : 0±2.5ppm/°C, 0±5ppm/°C, 0±15ppm/°C | | |
| HC, HD, HG Series Ultra Precision Resistor (Hermetically Sealed) |  | Rated Power: 0.3W Resistance Range: 1Ω - 120kΩ Resistance Tolerance: ±0.005% - ±1.0% TCR : 0±1ppm/°C, 0±2.5ppm/°C 0±5ppm/°C, 0±15ppm/°C | | |
| HK, HL Series Zero-TCR Ultra Precision Resistor (Hermetically Sealed) |  | Rated Power: 0.3W Resistance Range: 100Ω - 100kΩ Resistance Tolerance: ±0.005% - ±1.0% TCR : S characteristics | | |
| Ultra Precision Resistor Network | | |||
| SC Series Ultra Precision Resistor Network (Case-Encapsulated) |  | Rated Power: 0.5 - 1W Resistance Range: 30Ω - 120kΩ (Max. 1200kΩ/Package) Resistance Tolerance: ±0.01% - ±1.0% (Absolute) ±0.01% - ±1.0% (Matching) TCR : 0±1ppm/°C (Absolute) ±1ppm/°C (Tracking) | | |
| SE, SF, SS Series Precision Resistor Network (Conformally Coated) |  | Rated Power: 0.1W, 0.5W Resistance Range: 30Ω - 120kΩ Resistance Tolerance: +/-0.05%, +/-0.1% (Absolute) +/-0.01%, +/-1.0% (Matching) TCR : 0+/-5ppm/°C(Absolute) 0+/-1ppm/°C - 0+/-3ppm/°C(Matching) | | |
| VFP-3, VFP-4 Series High Precision Power and Current Sensing Resistors |  | Rated Power: Up to 10W Resistance Range: 0.1Ω - 80kΩ Resistance Tolerance: Up to ±0.01% TCR : 2ppm/°C typical (-55°C - +125°C +25ref.) | | |
| FNP Series High Precision Shunt Resistor Up to 500W |  | Rated Power: Up to 500W Resistance Range: 1mΩ - 1Ω Resistance Tolerance: Up to ±0.05% TCR : 1ppm/°C (+25°C - +60°C +25°C ref.) 5ppm/°C (-25°C - +125°C +25°C ref.) | |
Thin Film Resistors
| Products | Appearance | Brief Specification | ||
|---|---|---|---|---|
| NEW MATF, MCTF Series Precision Thin Film Resistor (Transfer Molded) |  | Rated Power: 0.2W@125°C Resistance Range: 200kΩ - 10MΩ Resistance Tolerance: ±0.01% - ±0.1% TCR : 0±1ppm/°C, 0±2.5ppm/°C 0±5ppm/°C, 0±10ppm/°C | | |
| NEW TMP Series Precision SMD Thin Film Resistor (Molded, J-Lead Terminal) |  | Rated Power: Resistance Range: Resistance Tolerance: TCR : | | |
| TLA, TLC Series Precision Thin Film Resistor (Conformally Coated) |  | Rated Power: 0.125W, 0.25W Resistance Range: 100kΩ - 10MΩ Resistance Tolerance: ±0.02% - ±1.0% TCR : 0±5ppm/°C, 0±10ppm/°C | | |
| TCB Series Precision Thin Film Resistor (Ceramic Case) |  | Rated Power: 0.125W, 0.25W Resistance Range: 100kΩ - 1MΩ Resistance Tolerance: ±0.02% - ±1.0% TCR : 0±5ppm/°C, 0±10ppm/°C |
Thermosensitive Resistors and Temperature Sensors
| Products | Appearance | Brief Specification | ||
|---|---|---|---|---|
| NEW Precision Nickel Thermosensitive Resistor (Flip Chip) Precision Nickel Thermosensitive Resistor (Flip Chip) | Resistance Value: 100Ω (NBA), 1kΩ (NBB/NBC) Tolerance：±0.5% TCR：+6060±2% (0℃～25℃), +6260±2% (0℃～50℃), +6660±2% (0℃～100℃） Load Life Stability：125℃, Max Current, 1.5hrs ON/0.5hrs OFF, 2000hrs ±0.03ppm (typical) | |||
| CLA, CLB,KLC, NLA, NLB, NMP, NMQ Series |  | Rated Power: 0.1W, 0.125W, 0.25W Resistance Range: 5Ω - 40kΩ Resistance Tolerance: ±0.5% - ±5% TCR : +4250ppm/°C - +6590ppm/°C | | |
| PTA Series Ultra Precision Pt Sensor (Conformally Coated) | Resistance: 100Ω, 1000Ω Class: A:±(0.15+0.002|t|), B:±(0.3+0.005|t|) TCR : 3850ppm/°C±20ppm/°C |
Custom Products
| Products | Appearance | Brief Specification | ||
|---|---|---|---|---|
| Custom Products | See datasheet for details. | |
Standard Resistors
| Products | Appearance | Brief Specification | ||
|---|---|---|---|---|
| NEW Precision Standard Shunt PSR Series High-precision shunt using ultra-precision Bulk Metal Foil® resistor technology |  | |||
| NEW Precision Nickel Thermosensitive Resistor (Flip Chip) Precision Nickel Thermosensitive Resistor (Flip Chip) | Resistance Value: 100Ω (NBA), 1kΩ (NBB/NBC) Tolerance：±0.5% TCR：+6060±2% (0℃～25℃), +6260±2% (0℃～50℃), +6660±2% (0℃～100℃） Load Life Stability：125℃, Max Current, 1.5hrs ON/0.5hrs OFF, 2000hrs ±0.03ppm (typical) | |||
| NEW HRU Series Ultra stable flagship primary standard resistor |  | Nominal R. Value: 1Ω, 10Ω, 25Ω, 100Ω, 1kΩ, 10kΩ Accuracy : ±1ppm TCR : ≦α23±0.05 ppm/℃, β±0.005 ppm/℃²＠23 ℃±5 ℃ Stability : ±0.05ppm/Year (typical) ±0.2ppm/Year | | |
| USR-SF Series Stress Free Ultra-Stable Primary Standard Resistor |  | Nominal R. Value: 1Ω, 10Ω, 25Ω, 100Ω, 1kΩ, 10kΩ Accuracy : ±2ppm TCR : ±0.05ppm/°C Stability : ±0.2ppm/Year (typical) ±0.5ppm/Year | | |
| ASR Series Primary Standard Resistor |  | Nominal R. Value: 1Ω, 10Ω, 100Ω, 1kΩ, 10kΩ, 100kΩ, 1MΩ, 10MΩ Accuracy : ±5ppm (10MΩ±10ppm) TCR: ±0.2ppm/°C (10MΩ:±0.5ppm/°C) Stability : ±3ppm/Year (10MΩ:±6ppm/Year) | | |
| CSR Series Working Standard Resistor |  | Nominal R. Value: 1mΩ, 10mΩ, 100mΩ, 100kΩ, 1MΩ, 10MΩ, 100MΩ Accuracy : ±10ppm - ±200ppm TCR: ±1ppm/°C - ±10ppm/°C Stability : ±10ppm/Year - ±25ppm/Year | | |
| LSR Series High Power Standard Resistor |  | Nominal R. Value: 1mΩ, 10mΩ, 10mΩ Accuracy : ±25ppm - ±100ppm TCR: ±2.5ppm/°C Stability : ±10ppm/Year | | |
| MSR Series Milliohm Meter Calibration Resistor |  | Nominal R. Value: 1mΩ, 10mΩ, 100mΩ Accuracy : ±200ppm - ±500ppm TCR: ±5ppm/°C - ±15ppm/°C Stability : ±25ppm/Year | | |
| ATV Series I/V Converter |  | Rated Power: 0.1W (1Ω:0.25W) Nominal R. Value: 1Ω, 10Ω, 100Ω, 1kΩ, 10kΩ, 100kΩ Accuracy : ±0.1% TCR : ±2.5ppm/°C | | |
| ADR Series Precision Programmable Resistance Box RTD Simulator |  | Max. Power: 0.5W Resistance Range: 5Ω - 199.9999kΩ Resolution: 0.001Ω - 0.1Ω Accuracy: ±(0.01% + 2mΩ) | | |
| ADR Series 6Dial 6 Dial Decade Resistance Box RTD Simulator |  | Max. Power: 0.5W Resistance Range: 0.100Ω - 199.9999kΩ Resolution: 0.001Ω - 10Ω Accuracy: ±(0.005% + 2mΩ) | | |
| ADR-1000 Series 1 Dial Resistance Box RTD Simulator |  | Resistance Range: 1Ω - 1MΩ Resistance Tolerance: ±0.02%, ±0.05%, ±0.1% TCR : 0±2.5ppm/°C, 0±5ppm/°C NO.of Contact(Max): 24 Points | | |
| ATS Series Resistor Transfer Standard |  | Resistance: 1Ω - 100Ω, 10Ω - 1kΩ Range: 100Ω - 10kΩ, 1kΩ - 100kΩ 10kΩ - 1MΩ, 100kΩ - 10MΩ, 1MΩ - 100MΩ Accuracy : ±10ppm - ±50ppm(Absolute) ±5ppm - (Matching) TCR: ±1ppm/°C - ±10ppm/°C(Absolute) ±1ppm/°C - (Matching) | | |
| Custom Products Standard Resistors |  | Custom Products Group to meet with various requirements from customers. See datasheet for details. | | |
| Traceability Chart | See datasheet for details. | | ||
| Calibration/Options | See datasheet for details. | |