Alpha MP Series

Product Features

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

Applications

The MP ultra-precision surface-mount resistor series from Alpha Electronics offers a wide resistance range from 30Ω up to 30kΩ with tight tolerances down to +0.05% (100Ω to 30kΩ), all in a small surface-mount package. By utilising Alpha’s Bulk Metal® foil resistor technology, they are able to produce resistors with low-temperature coefficients and excellent long-term stability. The Alpha MP series 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. The series exhibits excellent high-frequency characteristics thanks to their Bulk Metal® foil resistor technology, making them suitable for the most demanding precision applications.

Surface-mount ultra-precision resistor
Moulded package with J-lead terminations
Resistance values from 30Ω to 30kΩ
Tolerance of ±0.05% or ±0.1% (dependant on resistance values)
TCR of ±5 ppm/°C or ±10 ppm/°C (dependant on resistance values)
Temperature range from -65°C up to +175°C
Maximum working voltage of 50V
Maximum working current of 0.35A
Power rating of 0.1W (at +125°C)

Typical applications for the MP ultra-precision surface-mount resistor series include:

Sceintific instrumentation
Test & Measurement equipment

Alpha Electronics MP Series Specification Table

Attributes	Value
Resistance value	30Ω to 30kΩ
Tolerance	±0.05% / ±0.1%
TCR	±5ppm/°C or ±10ppm/°C (-55 to +125°C)
Temperature range	-65°C to +175°C
Power rating (at +70°C)	0.1W
Maximum voltage	50V

Alpha Electronics are manufacturers of some of the most stable and precise resistors on the market. As part of the VPG Foil Resistors product group, the Alpha Electronics brand is globally rewarded for the accuracy and reliability of its Bulk Metal® Foil technology resistors. Alpha Electronics has been living the conviction globally known to engineers for consistently delivering the highly desirable characteristics of “Stability, Accuracy and Reliability”. Please visit https://www.alpha-elec.co.jp for more information.

Resistance Value
Tolerance
Temperature Coefficient
Series / Model
Clear

Custom resistance value (Ω)
Custom AT Range (AT)
Custom Capacity (lbs)
Custom Pressure (Bar/PSI)
Custom Resistance Value Element 1 (Ω)
Custom Resistance Value Element 2 (Ω)
Custom lead length (mm)
Custom lead length (inches)

Quantity

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Calculators and Convertors

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

Specifications

Dimensions	2.00 x 2.50 x 3.20mm
Resistance Value	Custom (30Ω – 100Ω), Custom (100Ω – 30kΩ), 30Ω, 50Ω, 100Ω, 120Ω, 180Ω, 200Ω, 300Ω, 350Ω, 500Ω, 900Ω, 1kΩ, 1.8kΩ, 2kΩ, 2.2kΩ, 3kΩ, 5kΩ, 5.6kΩ, 6.8kΩ, 9kΩ, 10kΩ, 15kΩ, 18kΩ, 20kΩ, 25kΩ, 30kΩ
Product Type	Ultra-Precision Surface-Mount Resistor
Minimum Resistance	30Ω
Maximum Resistance	30kΩ
Tolerance	±0.05%, ±0.1%
Power Rating	0.1W
Temperature Coefficient	±5 ppm/°C, ±10 ppm/°C
Voltage Rating	50V
Current Rating	0.35A
Temperature Range (°C)	-65 to +175°C
Package / Size	Surface-mount
Series / Model	Mx

Alpha MP Series Ordering Info

The MP resistor series is available with various options including standard resistance values and tolerances. The information below gives an example of the part numbering system used for these resistors and the standard options available.

Below is an example of the part number break down for the MP resistor series:

Alpha Electronics MP Series – Standard Stocked Parts

Resistance Value	Part Number Value	0.05% Tolerance	0.1% Tolerance
30Ω	30R000
50Ω	50R000
100Ω	100R00
120Ω	120R00
180Ω	180R00
200Ω	200R00
300Ω	300R00
350Ω	350R00
500Ω	500R00
900Ω	900R00
1kΩ	1K0000
1.8KΩ	1K8000
2kΩ	2K0000
2.2KΩ	2K2000
3kΩ	3K0000
5kΩ	5K0000
5.6KΩ	5K6000
6.8KΩ	6K8000
9kΩ	9K0000
10kΩ	10K0000
15KΩ	15K000
18KΩ	18K000
20kΩ	20K000
25KΩ	25K000
30KΩ	30K000

Alpha Resistor Videos

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

VIDEOS
	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.
	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.
	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

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.

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.

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

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.

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.

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 MP Series Resources

Product Datasheet

Alpha MP & MQ Series Datasheet
Alpha Electronics MP and MQ moulded J-lead surface-mount ultra-precision resistor series datasheet

Supporting Product Information

Alpha Manufacturing and Product Information
Alpha Electronics manufacturing process, adjustment of resistance value construction, and temperature characteristics of resistance information
Alpha Custom Resistor Products Information
Alpha Electronics additional services and custom ultra-precision resistor information

Supporting Manufacturer Information

Alpha Standard Resistors Databook
Alpha Electronics complete standard resistor series information databook
Alpha Ultra-Precision Resistors Databook
Alpha Electronics complete ultra-precision resistor series information databook