Alpha MPP Series

  • Alpha Electronics

Product Features

  • 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

Applications

  • Compliant

The MPP Z-foil resistor series from Alpha Electronics offers ultra high-precision including a TCR of ±0.2 ppm/°C (typical) as well as a wide resistance range from 30Ω up to 20kΩ, all in a small surface-mount package. By utilising Alpha’s Z-foil resistor technology, they are able to produce resistors with a temperature coefficient of almost zero and excellent long-term stability. Expanding on the standard Alpha MP series, the MPP series offers double the power rating at +70°C and the same power rating up to +125°C. The J-lead terminals provide flexibility compared to standard fixed surface-mount resistors as the resistive element internally is mechanically isolated from the leads via gold wire-bonding.

  • Surface-mount ultra-precision resistor
  • Available in any resistance between 30Ω and 20kΩ
  • Surface-mount moulded package with J-lead terminations
  • The resistive element is mechanically isolated from the contact terminals
  • Tight tolerance of ±0.05% for resistances between 100Ω and 30kΩ
  • Tight TCR of ±0.2 ppm/°C (typical) thanks to Alpha’s Z-foil technology.
  • Maximum working voltage of 50V
  • Maximum working current of 0.35A
  • Power rating of 0.2W (at +70°C)
  • Maximum rated operating temperature +125°C
  • Temperature range from -65°C up to +175°C

 

Alpha’s MPP surface-mount, ultra high-precision resistor series exhibit excellent high frequency characteristics thanks to their new generation Z-foil technology, making them suitable for the most demanding precision applications.

These resistors are constructed using an outer coating of epoxy resin, which provides excellent resistance to moisture, heat and solvents. Internally, the resistive element is mechanically isolated from the lead frames using gold wire-bonding.

 

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

Alpha MPP Specifications
* Please contact us for tighter tolerances

 

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Specifications

Weight 0.00000 kg
Dimensions 2.00 x 2.50 x 3.20mm
Current Rating

Maximum Resistance

Minimum Resistance

Package / Size

Power Rating

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Product Type

Resistance Value

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Series / Model

Temperature Coefficient

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Temperature Range (°C)

Tolerance

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Voltage Rating

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 MPP Series Resources

Product Datasheet

Supporting Product Information

Supporting Manufacturer Information

  • Alpha Electronics

Alpha MPP Series

Please be advised that due to the ongoing supply issues with raw materials affecting the global electronics industry, as well as an increase in orders received by our manufacturing partners, a large number of products are facing increased lead times in recent months. For the latest lead time and stock availability, please contact one of our engineers who will be happy to discuss lead times further and the potential for alternative parts.