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.
| 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.
| 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 | |
| Minimum Resistance | 30Ω |
| Maximum Resistance | 30kΩ |
| Tolerance | |
| Power Rating | |
| Temperature Coefficient | |
| Voltage Rating | |
| Current Rating | |
| Temperature Range (°C) | -65 to +175°C |
| Package / Size | |
| Series / Model |
| 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 |
| SKU | Temperature Coefficient | Resistance Value | Tolerance | Series / Model |
|---|---|---|---|---|
| Alpha MP (100Ω - 30kΩ) | ±5 ppm/°C | Custom (100Ω - 30kΩ) | ±0.05% | |
| Alpha MP (30Ω - 100Ω) | ±10 ppm/°C | Custom (30Ω - 100Ω) | ±0.1% | |
| Alpha MP 1K800 | ±5 ppm/°C | 1.8kΩ | ±0.05% | |
| Alpha MP 100R0 | ±5 ppm/°C | 100Ω | ±0.05% | |
| Alpha MP 10K00 | ±5 ppm/°C | 10kΩ | ±0.05% | |
| Alpha MP 120R0 | ±5 ppm/°C | 120Ω | ±0.05% | |
| Alpha MP 15K00 | ±5 ppm/°C | 15kΩ | ±0.05% | |
| Alpha MP 180R0 | ±5 ppm/°C | 180Ω | ±0.05% | |
| Alpha MP 18K00 | ±5 ppm/°C | 18kΩ | ±0.05% | |
| Alpha MP 1K000 | ±5 ppm/°C | 1kΩ | ±0.05% | |
| Alpha MP 2K200 | ±5 ppm/°C | 2.2kΩ | ±0.05% | |
| Alpha MP 200R0 | ±5 ppm/°C | 200Ω | ±0.05% | |
| Alpha MP 20K00 | ±5 ppm/°C | 20kΩ | ±0.05% | |
| Alpha MP 25K00 | ±5 ppm/°C | 25kΩ | ±0.05% | |
| Alpha MP 2K000 | ±5 ppm/°C | 2kΩ | ±0.05% | |
| Alpha MP 300R0 | ±5 ppm/°C | 300Ω | ±0.05% | |
| Alpha MP 30K00 | ±5 ppm/°C | 30kΩ | ±0.05% | |
| Alpha MP 30R00 | ±10 ppm/°C | 30Ω | ±0.1% | |
| Alpha MP 350R0 | ±5 ppm/°C | 350Ω | ±0.05% | |
| Alpha MP 3K000 | ±5 ppm/°C | 3kΩ | ±0.05% | |
| Alpha MP 5K600 | ±5 ppm/°C | 5.6kΩ | ±0.05% | |
| Alpha MP 500R0 | ±5 ppm/°C | 500Ω | ±0.05% | |
| Alpha MP 50R00 | ±10 ppm/°C | 50Ω | ±0.1% | |
| Alpha MP 5K000 | ±5 ppm/°C | 5kΩ | ±0.05% | |
| Alpha MP 6K800 | ±5 ppm/°C | 6.8kΩ | ±0.05% | |
| Alpha MP 900R0 | ±5 ppm/°C | 900Ω | ±0.05% | |
| Alpha MP 9K000 | ±5 ppm/°C | 9kΩ | ±0.05% |
| Product name | SKU | Datasheet | ||
|---|---|---|---|---|
| Caddock MX500 Series | Caddock MX500 | View Product | |
| Alpha MA Series | Alpha MA Series | View Product | |
| Alpha MB Series | Alpha MB Series | View Product | |
| Alpha MC Series | Alpha MC Series | View Product | |
| Alpha MD Series | Alpha MD Series | View Product | |
| Alpha MP Series | Alpha MP Series | View Product | |
| Alpha MPP Series | Alpha MPP Series | View Product | |
| Alpha MQ Series | Alpha MQ Series | View Product | |
| Alpha MQP Series | Alpha MQP Series | View Product | |
| Alpha MU Series | Alpha MU Series | View Product |
Below is an example of the part number break down for the MP resistor series:
| 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 |
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. |
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|
|
|
|
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. |
|
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