Alpha MSR Series

  • Compliant
  • Alpha Electronics

Product Features

  • 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

Applications

  • Test and Measurement

Description

The MSR series from Alpha Electronics offers a compact standard resistor suitable for the calibration of low resistance milliohm meters. The internal construction and connection terminals are designed to optimize AC characteristics and minimize the effect of thermoelectromotive force. Alpha’s Bulk Metal® Foil resistive elements are used to ensure the best long-term stability and lowest temperature coefficients are achieved. The MSR calibration resistor is a cost effective and simple product, offering both high stability and low temperature coefficient.

  • Compact standard resistor for low resistance calibration
  • Compact, lightweight, portable and easy to operate
  • Excellent performance versus cost ratio
  • Resistive pattern designed to minimize difference performance between AC and DC
  • Standard resistance values of 0.001Ω, 10mΩ and 100mΩ available as well as custom resistances
  • Maximum working voltage of up to 0.01V (model MSR-1N0)
  • Maximum working current of up to 10A (model MSR-1N0)
  • Maximum power rating of 0.1W
  • Maximum working temperature of +50°C
  • Storage temperature range of 0 to +50°C
  • 5 terminals

 

The MSR is a compact standard resistor suitable for daily calibration of milliohm meters, etc. Although the MSR series is a low cost, easy to use product, it offers both high stability and low temperature coefficient. The MSR is most suitable as a standard resistor to be used on the job site.

The MSR series has a weight of approximately 150g and dimensions of 50mm x 44mm x 65mm.

 

The below table gives the full specifications for each model available of the Alpha MSR series:

Alpha MSR Specifications

Specifications

Weight 0.15000 kg
Dimensions 65.00 × 50.00 × 44.00 mm
Model / Part Number

, ,

Minimum Resistance

Series / Model

Maximum Resistance

Accuracy

,

Power Rating

Additional Features

Compact standard resistor for low resistance calibrationLightweight, portable and easy to operateExcellent performance versus costThe resistive pattern is designed to minimize difference performance

Temperature Coefficient

, ,

Alpha MSR Series Resources

Product Datasheet

Supporting Product Information

Supporting Manufacturer Information

Alpha Resistor Videos

We are pleased to provide you with a range of videos, please see below for the latest content available:

 

 

VIDEOS
Place holder video for YouTube video Resistor Stability Put to the Test (Demo Video)

In this video, our host Richard Zuratt puts the stability of the three major resistor technologies — foil, thin, and thick film — to the test. Each resistor type is subjected to an overload pulse and its change in resistance value is recorded. Due to the homogeneous nature of the VPG Bulk Metal® Foil resistor, it is the only of the three to experience no change from the high power pulse. This demonstrated performance makes foil resistors the technology of choice for critical applications where long-term stability and survivability are paramount.

Place holder video for YouTube video Advantages of Using Bulk Metal® Foil Resistors in High-Humidity Environments

All resistors that are based on nichrome, which is a category that includes both thin film devices and Bulk Metal Foil resistors, are susceptible to electro-chemical corrosion or etching when placed in a high humidity environment and powered with a very low wattage. But since the nichrome element of a Bulk Metal Foil resistor is hundreds of times thicker than the element in a thin film device with the same value, it will last much longer under these conditions. This video shows the actual etching process and survival times for thin film and foil nichrome resistive elements as they are tested in 100% humidity conditions.

Place holder video for YouTube video Comparison Testing of Chip Resistor Technologies Under High Vibration

Surface-mount resistors suffer physical stresses when exposed to high vibration or thermally unstable environments. Failure modes commonly occur in welds, solder joints, connectors, and terminations, ultimately resulting in circuit failure. In this demonstration, vibration-table-mounted boards are subjected to ±2° deflection 25 times per second and monitored for any ΔR > 0.1%. All the chip resistors failed in 2 to 12 minutes (8K to 16K cycles). But the Alpha MPP molded Bulk Metal® Z-Foil resistor with flexible terminations experienced over a million cycles with no change in resistance.

VIDEOS
Place holder video for YouTube video
Resistor Stability Put to the Test (Demo Video

In this video, our host Richard Zuratt puts the stability of the three major resistor technologies — foil, thin, and thick film — to the test. Each resistor type is subjected to an overload pulse and its change in resistance value is recorded. Due to the homogeneous nature of the VPG Bulk Metal® Foil resistor, it is the only of the three to experience no change from the high power pulse. This demonstrated performance makes foil resistors the technology of choice for critical applications where long-term stability and survivability are paramount.

Place holder video for YouTube video
Advantages of Using Bulk Metal® Foil Resistors in High-Humidity Environments

All resistors that are based on nichrome, which is a category that includes both thin film devices and Bulk Metal Foil resistors, are susceptible to electro-chemical corrosion or etching when placed in a high humidity environment and powered with a very low wattage. But since the nichrome element of a Bulk Metal Foil resistor is hundreds of times thicker than the element in a thin film device with the same value, it will last much longer under these conditions. This video shows the actual etching process and survival times for thin film and foil nichrome resistive elements as they are tested in 100% humidity conditions.

Place holder video for YouTube video

Surface-mount resistors suffer physical stresses when exposed to high vibration or thermally unstable environments. Failure modes commonly occur in welds, solder joints, connectors, and terminations, ultimately resulting in circuit failure. In this demonstration, vibration-table-mounted boards are subjected to ±2° deflection 25 times per second and monitored for any ΔR > 0.1%. All the chip resistors failed in 2 to 12 minutes (8K to 16K cycles). But the Alpha MPP molded Bulk Metal® Z-Foil resistor with flexible terminations experienced over a million cycles with no change in resistance.

Alpha MSR Series

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