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About Alpha Electronics

Ultra Precision Bulk Metal® Foil Resistors

Wide range of SMD and through-hole resistors and resistor networks
Z-foil technology ultra-high precision SMD resistors (MPP & MQP series)
Tightest tolerance of ±0.005%, typical TCR of 0.14ppm/°C
Excellent long term stability of 5ppm/year
Standard resistors and resistance boxes

Services

Alpha HK Series

Ultra-precision hermetically sealed resistor
Resistance range form 100Ω to 100kΩ
Tolerance from ±0.005% to ±1%
Characteristic S Zero-TCR
Power rating of 0.3W (at 70°C)
Temperature range from -65°C up to +150°C

Alpha HL Series

Ultra-precision hermetically sealed resistor
Resistance range form 100Ω to 100kΩ
Tolerance from ±0.005% to ±1%
Characteristic S Zero-TCR
Power rating of 0.3W (at 70°C)
Temperature range from -65°C up to +150°C

Alpha KLC Series

Thermosenstive through-hole resistor
Resistance range from 20Ω to 40kΩ
Tolerance from ±0.5% available
TCR are almost linear
Power rating of 0.25W (at +70°C)
Temperature range from -25°C up to +125°C

Alpha LSR Series

High power standard resistor
Nominal resistance values of 0.001Ω, 0.01Ω or 0.1Ω
Accuracy of ±25 ppm, ±50 ppm or ±100 ppm
TCR of ±2.5 ppm/°C
Power rating of 1W or 4W
Long-term stability better than 20 ppm/year

Alpha MA Series

Ultra-precision transfer moulded resistor
Resistance range form 1Ω to 200kΩ
Tolerance from ±0.005% to ±1%
TCR from ±1 ppm/°C to ±15 ppm/°C
Power rating of 0.3W (at 125°C)
Temperature range from -65°C up to +175°C

Alpha MATF Series

Precision thin film resistor (transfer moulded)
Resistance ranges from 200kΩ up to 10MΩ
Tolerances from ±0.01% up to ±0.01% (model dependant)
TCR of 0±1ppm/°C to 0±10ppm/°C (model dependant)
Pin pitch of 3.81±0.25mm
Lead length of 25±10mm
Working temperature range from -65°C up to +175°C

Alpha MB Series

Ultra-precision transfer moulded resistor
Resistance range form 5Ω to 400kΩ
Tolerance from ±0.005% to ±1%
TCR of ±1 ppm/°C, ±2.5 ppm/°C or ±5 ppm/°C
Power rating of 0.5W (at 125°C)
Temperature range from -65°C up to +175°C

Alpha MC Series

Ultra-precision transfer moulded resistor
Resistance range form 1Ω to 200kΩ
Tolerance from ±0.005% to ±1%
TCR from ±1 ppm/°C to ±15 ppm/°C
Power rating of 0.3W (at 125°C)
Temperature range from -65°C up to +175°C

Alpha MCTF Series

Precision thin film resistor (transfer moulded)
Resistance ranges from 200kΩ up to 10MΩ
Tolerances from ±0.01% up to ±0.01% (model dependant)
TCR of 0±1ppm/°C to 0±10ppm/°C (model dependant)
Pin pitch of 35.08±0.25mm
Lead length of 10±3mm
Working temperature range from -65°C up to +175°C

Alpha MD Series

Ultra-precision transfer moulded resistor
Resistance range form 5Ω to 80kΩ
Tolerance from ±0.005% to ±1%
TCR of ±1 ppm/°C, ±2.5 ppm/°C or ±5 ppm/°C
Power rating of 0.125W (at 125°C)
Temperature range from -65°C up to +175°C

Alpha MP Series

Ultra-precision surface-mount resistor
Moulded package with J-lead terminations
Resistance range from 30Ω to 30kΩ
Tolerances as low as ±0.05%
TCR of ±5 ppm/°C or ±10 ppm/°C
Power rating of 0.1W (at +125°C)
Temperature range from -65°C up to +175°C

Alpha MPP Series

Ultra precision surface-mount resistor
Resistance values between 30Ω and 20kΩ
Tolerance as low as ±0.01%
TCR of ±0.2 ppm/°C
Power rating of 0.2W (at +70°C)
Temperature from -65°C up to +175°C

Alpha MQ Series

Ultra-precision surface-mount resistor
Available in any resistance between 30Ω and 60kΩ
Tolerance as low as ±0.05%
TCR of ±5 ppm/°C or ±10 ppm/°C
Power rating of 0.125W (at +125°C)
Temperature range from -65°C up to +175°C

Alpha MQP Series

Ultra-precision surface-mountresistor
Resistance range from 30Ω to 40kΩ
Tolerance as low as ±0.01%
TCR of ±0.2 ppm/°C
Maximum working current of 0.35A
Power rating of 0.25W (at +70°C)
Temperature range from -65°C to +175°C

Alpha MSR Series

Compact standard resistor for low resistance calibration
Lightweight, portable and easy to operate
Excellent performance versus cost
The resistive pattern is designed to minimize difference performance between AC and DC
Certificate of Calibration and Inspection sheets traceable to NMIJ (National Metrology Institute of Japan) are provided only for DC operation at shipment

Alpha MU Series

2 Element resistor network
Resistance range between 10Ω and 20kΩ
Surface-mount moulded package with J-lead terminations
Tight tolerance of ±0.01%
TCR of ±5 ppm/°C
Power rating of 0.05W (at +125°C)
Temperature range from -65°C up to +150°C

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