Alpha MC Series

  • Alpha Electronics

Product Features

  • 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


The MC ultra-precision transfer moulded resistor series from Alpha Electronics offers a wide resistance range from 1Ω up to 200kΩ with tight tolerances, all in a small through-hole package with a pin pitch of 5.08 ±0.25mm. By utilising Alpha’s Bulk Metal® foil resistor technology, they are able to produce resistors with low temperature coefficients and excellent long-term stability.

  • Ultra-precision transfer moulded resistor
  • Available in any resistance between 1Ω and 200kΩ
  • Transfer moulded through-hole package with a pin pitch of 5.08 ±0.25mm
  • Tight tolerance options as low as ±0.005% available for resistances between 30Ω and 200kΩ
  • Tight TCR options available of ±1 ppm/°C (from 0°C up to +65°C, between 30Ω and 200kΩ) or ±2.5 ppm/°C (from -55°C up to +125°C, between 30Ω and 200kΩ)
  • Maximum working voltage of 300V
  • Power rating of 0.3W (at +125°C) or 0.2W (at 150kΩ or above)
  • Maximum rated operating temperature +125°C
  • Temperature range from -65°C up to +175°C


Alpha’s Bulk Metal® foil resistor technology means that these transfer moulded, through-hole, ultra-precision resistors are ideal for precision measurements, also their low inductance makes them ideal for use at higher frequencies.

These resistors are constructed using an outer coating of transfer moulded epoxy resin, making the parts strongly resistant to heat, moisture and solvents. Internally, there are secondary leads which act as a buffer so that stress on the exterior leads is not transmitted to the foil, providing stability against vibrations when the resistor is mounted on a circuit.


The below table gives the full specifications for each resistor model available including the Alpha MC series:

Alpha MC Specifications
* Symbols parenthesized are for part number composition
✝ Resistance figures are the values obtained by measuring the leads at point 12.7±3.2mm away from the base for type MB, MC and MD, but, in case of resistance below 10Ω, the value at 1.6 ±0.6mm away from the base for all types
** Temperature characteristic Z is applicable for temperature range between 0°C and +60°C


Calculators and Convertors

Work out what you need for your project. Go to calculators and convertors

Contact us if you need your items quicker or need more than in stock.


Weight 0.00000 kg
Dimensions 8.30 x 2.30 x 7.90mm
Maximum Resistance

Minimum Resistance

Package / Size

Power Rating


Product Type

, ,

Resistance Value

, ,

Series / Model

Temperature Coefficient

, , ,

Temperature Range (°C)


, , , , , ,

Alpha Resistor Videos

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



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 actu