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PM1210-2R2J Equivalent & Substitute Parts
Part Overview
The PM1210-2R2J is a 2.2 µH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 320 mA with a maximum DC resistance of 1Ohm. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The part is housed in a 1210 (3225 Metric) surface mount package suitable for high-frequency applications up to 75 MHz self-resonant frequency.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Inductance | 2.2 µH |
| Tolerance | ±5% |
| Current Rating | 320 mA |
| DC Resistance (DCR) | 1Ohm Max |
| Package / Case | 1210 (3225 Metric) |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40°C ~ 125°C |
| Shielding | Unshielded |
| Q @ Frequency | 30 @ 7.96 MHz |
| Frequency - Self Resonant | 75 MHz |
Substitute Part Grouping Explanation
Substitution eligibility for the PM1210-2R2J is determined by the following critical parameters:
- Inductance Value: Must be 2.2 µH with ±5% tolerance
- Package / Case: Must be 1210 (3225 Metric) surface mount
- Current Rating: Must support minimum 320 mA operation
- DC Resistance: Must not exceed 1Ohm maximum
- Operating Temperature: Must cover -40°C ~ 125°C minimum range
- Shielding Configuration: Must be unshielded
Substitute parts are grouped into two categories:
Direct Substitutes maintain identical electrical specifications and can replace the main part without circuit redesign.
Similar Substitutes meet the core electrical requirements but may have variations in secondary parameters such as core material, frequency response, or compliance certifications. These require verification of application-specific requirements before implementation.
Parameter Comparison
| Parameter | PM1210-2R2J (Main) | PM1210-2R2J-RC | 1210-222J | IMC1210EB2R2J | IMC1210ER2R2J |
|---|---|---|---|---|---|
| Manufacturer | Bourns Inc. | Bourns Inc. | API Delevan Inc. | Vishay Dale | Vishay Dale |
| Inductance | 2.2 µH | 2.2 µH | 2.2 µH | 2.2 µH | 2.2 µH |
| Tolerance | ±5% | ±5% | ±5% | ±5% | ±5% |
| Current Rating (mA) | 320 | 190 | 431 | 320 | 320 |
| DC Resistance (Max) | 1Ohm | 950mOhm | 1Ohm | 1Ohm | 1Ohm |
| Package / Case | 1210 (3225 Metric) | 1210 (3225 Metric) | 1210 (3225 Metric) | 1210 (3225 Metric) | 1210 (3225 Metric) |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C |
| Shielding | Unshielded | Unshielded | Unshielded | Unshielded | Unshielded |
| Q @ Frequency | 30 @ 7.96 MHz | 30 @ 7.96 MHz | 30 @ 7.9 MHz | 30 @ 7.96 MHz | 30 @ 7.96 MHz |
| Frequency - Self Resonant | 75 MHz | 80 MHz | 70 MHz | 75 MHz | 75 MHz |
| Product Status | Obsolete | Active | Active | Active | Active |
| RoHS Status | Non-compliant | ROHS3 Compliant | Non-compliant | ROHS3 Compliant | ROHS3 Compliant |
| Packaging | Bulk | Tape & Reel (TR) | Tape & Reel (TR) | Bulk | Tape & Reel (TR) |
Engineering Selection Recommendations
PM1210-2R2J-RC (Bourns Inc., Active): This is the direct successor from the same manufacturer. It maintains identical inductance, tolerance, package, and frequency characteristics. The current rating is reduced to 190 mA, which limits its use to applications requiring less than 190 mA. The DC resistance is improved to 950mOhm. This part is ROHS3 compliant and available in Tape & Reel packaging, making it suitable for high-volume production environments. Select this part when current requirements do not exceed 190 mA and RoHS compliance is required.
1210-222J (API Delevan Inc., Active): This substitute maintains the 320 mA current rating and 1Ohm maximum DC resistance, matching the main part's current handling capability. It offers an extended operating temperature range of -55°C ~ 125°C. The self-resonant frequency is 70 MHz, which is lower than the main part. This part is not RoHS compliant. Select this part when the extended lower temperature range is required and RoHS compliance is not mandatory.
IMC1210EB2R2J (Vishay Dale, Active): This substitute provides identical electrical specifications including 320 mA current rating and 1Ohm DC resistance. The core material is iron powder rather than ferrite. It offers an extended operating temperature range of -55°C ~ 125°C and is ROHS3 compliant. Packaging is bulk format. Select this part when RoHS compliance and extended temperature range are required, and bulk packaging is acceptable.
IMC1210ER2R2J (Vishay Dale, Active): This substitute is electrically identical to IMC1210EB2R2J but is supplied in Tape & Reel packaging. It maintains 320 mA current rating, 1Ohm DC resistance, iron powder core material, -55°C ~ 125°C operating range, and ROHS3 compliance. Select this part when RoHS compliance, extended temperature range, and Tape & Reel packaging for automated assembly are required.
Frequently Asked Questions (FAQ)
Q: Can PM1210-2R2J-RC be used as a direct replacement for PM1210-2R2J?
A: PM1210-2R2J-RC is suitable only if the application current requirement does not exceed 190 mA. The main part is rated for 320 mA. If your circuit draws more than 190 mA, this substitute will not function properly. All other electrical parameters are identical.
Q: What is the difference between IMC1210EB2R2J and IMC1210ER2R2J?
A: Both parts are electrically identical with the same inductance, current rating, DC resistance, and operating temperature range. The only difference is packaging: IMC1210EB2R2J is supplied in bulk format, while IMC1210ER2R2J is supplied in Tape & Reel (TR) format. Choose based on your assembly process requirements.
Q: Are all substitute parts RoHS compliant?
A: No. PM1210-2R2J-RC, IMC1210EB2R2J, and IMC1210ER2R2J are ROHS3 compliant. The 1210-222J is not RoHS compliant. If RoHS compliance is required for your application, select from the compliant options.
Q: Does the core material difference between ferrite and iron powder affect performance?
A: The main part PM1210-2R2J uses ferrite core material. The Vishay Dale substitutes (IMC1210EB2R2J and IMC1210ER2R2J) use iron powder core material. Both maintain the same inductance value, tolerance, current rating, and DC resistance. The core material difference does not affect the specified electrical parameters provided in this reference.
Q: Can I use 1210-222J if my application requires operation below -40°C?
A: Yes. The 1210-222J has an operating temperature range of -55°C ~ 125°C, which extends to -55°C. The main part PM1210-2R2J is rated only to -40°C. If your application requires operation at temperatures between -55°C and -40°C, the 1210-222J supports this requirement.
Q: What packaging options are available for substitutes?
A: PM1210-2R2J-RC is available in Tape & Reel (TR). The 1210-222J is available in Tape & Reel (TR). IMC1210EB2R2J is available in bulk. IMC1210ER2R2J is available in Tape & Reel (TR). Select based on your assembly process: Tape & Reel for automated pick-and-place systems, bulk for manual assembly or lower-volume applications.
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