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PM32-100M-RC Equivalent & Substitute Parts
Part Overview
The PM32-100M-RC is a 10 µH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 800 mA continuous current with a maximum DC resistance of 250 mOhm. This surface mount component operates across the temperature range of -40°C to 125°C and is classified as Active product status. Substitute parts are identified when electrical specifications, mechanical dimensions, and compliance certifications align with the original component requirements, enabling direct replacement in circuit applications without design modification.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Inductance | 10 µH |
| Inductance Tolerance | ±20% |
| Current Rating | 800 mA |
| Current - Saturation (Isat) | 900 mA |
| DC Resistance (DCR) | 250 mOhm Max |
| Q @ Frequency | 18 @ 2.52 MHz |
| Frequency - Self Resonant | 34 MHz |
| Operating Temperature Range | -40°C to 125°C |
| Mounting Type | Surface Mount |
| Package Dimensions | 0.118" L x 0.110" W (3.00 mm x 2.80 mm) |
| Height - Seated (Max) | 0.110" (2.80 mm) |
| Core Material | Ferrite |
| Shielding | Unshielded |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| REACH Status | REACH Unaffected |
Substitute Part Grouping Explanation
Substitution eligibility for the PM32-100M-RC is determined by strict equivalence across the following critical parameters:
- Inductance value: 10 µH with ±20% tolerance
- Current rating: 800 mA minimum continuous current capability
- Saturation current (Isat): 900 mA minimum
- DC resistance: 250 mOhm maximum
- Core type: Ferrite drum core, unshielded
- Mounting: Surface mount configuration
- Package dimensions: 3.00 mm L x 2.80 mm W x 2.80 mm H maximum
- Operating temperature: -40°C to 125°C minimum range
- Compliance: ROHS3 and REACH Unaffected status
The SDR0302-100ML meets all specified electrical and mechanical parameters, confirming direct substitution capability.
Parameter Comparison
| Parameter | PM32-100M-RC | SDR0302-100ML | Match Status |
|---|---|---|---|
| Manufacturer | Bourns Inc. | Bourns Inc. | Identical |
| Inductance | 10 µH | 10 µH | Identical |
| Inductance Tolerance | ±20% | ±20% | Identical |
| Current Rating (Amps) | 800 mA | 800 mA | Identical |
| Current - Saturation (Isat) | 900 mA | 900 mA | Identical |
| DC Resistance (DCR) | 250 mOhm Max | 250 mOhm Max | Identical |
| Q @ Frequency | 18 @ 2.52 MHz | 18 @ 2.52 MHz | Identical |
| Frequency - Self Resonant | 34 MHz | 34 MHz | Identical |
| Operating Temperature Range | -40°C to 125°C | -40°C to 125°C | Identical |
| Mounting Type | Surface Mount | Surface Mount | Identical |
| Package Dimensions | 3.00 mm x 2.80 mm | 3.00 mm x 2.80 mm | Identical |
| Height - Seated (Max) | 2.80 mm | 2.80 mm | Identical |
| Core Material | Ferrite | Ferrite | Identical |
| Shielding | Unshielded | Unshielded | Identical |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Identical |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | Identical |
| REACH Status | REACH Unaffected | REACH Unaffected | Identical |
| Product Status | Active | Active | Identical |
Engineering Selection Recommendations
Both PM32-100M-RC and SDR0302-100ML are Active status components manufactured by Bourns Inc. with identical electrical specifications, mechanical dimensions, and regulatory compliance certifications. Selection between these parts may be based on inventory availability and supply chain considerations. The PM32-100M-RC currently maintains 828 pieces in stock, while the SDR0302-100ML has 16,200 pieces available. Both components satisfy ROHS3 compliance and REACH Unaffected status requirements for regulated applications.
Frequently Asked Questions (FAQ)
Q: Can SDR0302-100ML replace PM32-100M-RC in existing designs?
A: Yes. All electrical parameters, mechanical dimensions, temperature ratings, and compliance certifications are identical. Direct substitution is supported without circuit modification.
Q: Are there differences in package dimensions between these parts?
A: No. Both components share identical package dimensions of 3.00 mm length x 2.80 mm width x 2.80 mm maximum height, confirming PCB footprint compatibility.
Q: Do both parts meet the same regulatory requirements?
A: Yes. Both PM32-100M-RC and SDR0302-100ML are ROHS3 compliant and REACH Unaffected, meeting identical environmental and regulatory standards.
Q: What is the basis for substitution between these inductors?
A: Substitution is based on matching inductance value (10 µH ±20%), current rating (800 mA), saturation current (900 mA), DC resistance (250 mOhm maximum), core material (ferrite), shielding configuration (unshielded), operating temperature range (-40°C to 125°C), and surface mount package specifications.
Q: Are there any differences in Q factor or self-resonant frequency?
A: No. Both parts exhibit identical Q factor of 18 at 2.52 MHz and self-resonant frequency of 34 MHz.
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