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PM32-6R8M-RC Equivalent & Substitute Parts
Part Overview
The PM32-6R8M-RC is a 6.8 µH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 1 A continuous current with a maximum DC resistance of 180 mOhm. This component is designed for surface mount applications in circuits requiring fixed inductance values with ferrite core construction. The part maintains Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component requirements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Inductance | 6.8 µH |
| Inductance Tolerance | ±20% |
| Current Rating | 1 A |
| Current - Saturation (Isat) | 1.2 A |
| DC Resistance (DCR) | 180 mOhm Max |
| Core Material | Ferrite |
| Shielding | Unshielded |
| Q @ Frequency | 18 @ 7.96 MHz |
| Self Resonant Frequency | 40 MHz |
| Operating Temperature Range | -40°C to 125°C |
| Mounting Type | Surface Mount |
| Package Dimensions | 3.00 mm L x 2.80 mm W x 2.80 mm H (Max) |
| RoHS Status | RoHS3 Compliant |
| Moisture Sensitivity Level | MSL 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the PM32-6R8M-RC is determined by strict equivalence across the following critical parameters:
- Inductance value: 6.8 µH with ±20% tolerance
- Current rating: 1 A minimum continuous current capability
- Saturation current: 1.2 A minimum
- DC resistance: 180 mOhm maximum
- Core type: Ferrite drum core, unshielded construction
- Frequency characteristics: Q factor of 18 @ 7.96 MHz and self-resonant frequency of 40 MHz
- Operating temperature range: -40°C to 125°C
- Package dimensions: 3.00 mm x 2.80 mm x 2.80 mm (Max height)
- Surface mount configuration
- RoHS3 compliance and MSL 1 rating
The SDR0302-6R8ML meets all specified electrical and mechanical parameters, confirming direct substitution capability.
Parameter Comparison
| Parameter | PM32-6R8M-RC | SDR0302-6R8ML | Match |
|---|---|---|---|
| Inductance | 6.8 µH | 6.8 µH | Yes |
| Inductance Tolerance | ±20% | ±20% | Yes |
| Current Rating | 1 A | 1 A | Yes |
| Current - Saturation (Isat) | 1.2 A | 1.2 A | Yes |
| DC Resistance (DCR) | 180 mOhm Max | 180 mOhm Max | Yes |
| Core Material | Ferrite | Ferrite | Yes |
| Shielding | Unshielded | Unshielded | Yes |
| Q @ Frequency | 18 @ 7.96 MHz | 18 @ 7.96 MHz | Yes |
| Self Resonant Frequency | 40 MHz | 40 MHz | Yes |
| Operating Temperature Range | -40°C to 125°C | -40°C to 125°C | Yes |
| Mounting Type | Surface Mount | Surface Mount | Yes |
| Package Dimensions | 3.00 mm x 2.80 mm x 2.80 mm | 3.00 mm x 2.80 mm x 2.80 mm | Yes |
| RoHS Status | RoHS3 Compliant | RoHS3 Compliant | Yes |
| Moisture Sensitivity Level | MSL 1 (Unlimited) | MSL 1 (Unlimited) | Yes |
Engineering Selection Recommendations
The SDR0302-6R8ML is a direct equivalent substitute for the PM32-6R8M-RC. Both components are manufactured by Bourns Inc. and maintain Active product status. Electrical specifications, mechanical dimensions, and compliance certifications are identical across all provided parameters. Both parts are RoHS3 compliant with MSL 1 rating, confirming suitability for standard surface mount assembly processes without moisture sensitivity constraints.
Selection between these parts may be based on inventory availability, lead time, or supply chain considerations, as no technical differentiation exists between the two components.
Frequently Asked Questions (FAQ)
Q: Can the SDR0302-6R8ML be used as a direct replacement for the PM32-6R8M-RC?
A: Yes. The SDR0302-6R8ML meets all electrical and mechanical specifications of the PM32-6R8M-RC, including inductance value, current rating, DC resistance, core material, package dimensions, and compliance certifications.
Q: Are there any differences in the package footprint 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 layout compatibility.
Q: What are the key parameters that determine substitution eligibility?
A: Substitution is determined by matching inductance (6.8 µH ±20%), current rating (1 A), saturation current (1.2 A), DC resistance (180 mOhm max), core material (ferrite, unshielded), frequency characteristics (Q @ 7.96 MHz and self-resonant frequency), operating temperature range (-40°C to 125°C), and compliance status (RoHS3, MSL 1).
Q: Do both parts require the same assembly and handling procedures?
A: Yes. Both components are surface mount inductors with identical MSL 1 ratings, requiring standard SMD assembly processes without special moisture control measures.
Q: Are there any compliance or certification differences between these parts?
A: No. Both parts are RoHS3 compliant and REACH unaffected, with identical moisture sensitivity levels and regulatory classifications.
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