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PM528S-820-RC Equivalent & Substitute Parts
Part Overview
The PM528S-820-RC is a 82 µH shielded drum core wirewound inductor manufactured by Bourns Inc., designed for surface mount applications. This component delivers 520 mA current rating with 430mOhm maximum DC resistance and operates across -40°C to 125°C. The part is Active status and ROHS3 compliant, making it suitable for modern electronic assemblies requiring regulated inductance performance in compact form factors.
Substitute parts are identified when design requirements permit component interchange without compromising circuit performance or reliability specifications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Inductance | 82 µH |
| Tolerance | ±30% |
| Current Rating | 520 mA |
| Current - Saturation (Isat) | 500 mA |
| DC Resistance (DCR) | 430 mOhm Max |
| Shielding | Shielded |
| Core Material | Ferrite |
| Q @ Frequency | 8 @ 2.52 MHz |
| Self Resonant Frequency | 9 MHz |
| Operating Temperature Range | -40°C to 125°C |
| Mounting Type | Surface Mount |
| Package Size | 5.80mm x 5.80mm x 3.00mm (Max Height) |
| RoHS Status | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the PM528S-820-RC is determined by strict equivalence across the following critical parameters:
- Inductance value: 82 µH with ±30% tolerance
- Current rating: 520 mA minimum
- Saturation current: 500 mA minimum
- DC resistance: 430 mOhm maximum
- Core type: Ferrite shielded drum core
- Mounting: Surface mount configuration
- Package dimensions: 5.80mm x 5.80mm footprint with 3.00mm maximum height
- Operating temperature: -40°C to 125°C range
- Regulatory compliance: ROHS3 and REACH requirements
The SRR5028-820Y meets all specified parameters and qualifies as a direct substitute.
Parameter Comparison
| Parameter | PM528S-820-RC | SRR5028-820Y | Match Status |
|---|---|---|---|
| Manufacturer | Bourns Inc. | Bourns Inc. | Identical |
| Inductance | 82 µH | 82 µH | Identical |
| Tolerance | ±30% | ±30% | Identical |
| Current Rating (Amps) | 520 mA | 520 mA | Identical |
| Saturation Current (Isat) | 500 mA | 500 mA | Identical |
| DC Resistance (DCR) | 430 mOhm Max | 430 mOhm Max | Identical |
| Shielding | Shielded | Shielded | Identical |
| Core Material | Ferrite | Ferrite | Identical |
| Q @ Frequency | 8 @ 2.52 MHz | 8 @ 2.52 MHz | Identical |
| Self Resonant Frequency | 9 MHz | 9 MHz | Identical |
| Operating Temperature | -40°C to 125°C | -40°C to 125°C | Identical |
| Mounting Type | Surface Mount | Surface Mount | Identical |
| Package Size | 5.80mm x 5.80mm | 5.80mm x 5.80mm | Identical |
| Height - Seated (Max) | 3.00mm | 3.00mm | Identical |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Identical |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) | Identical |
| REACH Status | REACH Unaffected | REACH Unaffected | Identical |
| Product Status | Active | Active | Identical |
Engineering Selection Recommendations
Both PM528S-820-RC and SRR5028-820Y are Active status components from Bourns Inc. with identical electrical and mechanical specifications. Selection between these parts may be based on inventory availability and supply chain considerations. Both components maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for modern electronics manufacturing. The SRR5028-820Y currently maintains higher inventory levels (2465 Pcs vs. 1006 Pcs), which may influence procurement decisions for high-volume applications.
Frequently Asked Questions (FAQ)
Q: Can SRR5028-820Y be used as a direct replacement for PM528S-820-RC in existing designs?
A: Yes. Both components share identical electrical parameters (82 µH inductance, 520 mA current rating, 430 mOhm DCR), identical core material (ferrite shielded drum core), and identical package dimensions (5.80mm x 5.80mm x 3.00mm). No circuit modifications are required.
Q: Are there differences in performance characteristics between these parts?
A: No. The Q factor (8 @ 2.52 MHz), self-resonant frequency (9 MHz), saturation current (500 mA), and operating temperature range (-40°C to 125°C) are identical across both components.
Q: Do both parts meet the same compliance standards?
A: Yes. Both PM528S-820-RC and SRR5028-820Y are ROHS3 compliant, REACH unaffected, and carry MSL rating 1 (Unlimited moisture sensitivity level).
Q: What is the primary difference between these two part numbers?
A: The parts belong to different Bourns series (PM528S vs. SRR5028) but maintain identical specifications. The difference is series designation only.
Q: Are there any package or footprint considerations when switching between these parts?
A: No. Both components use identical surface mount package dimensions and footprints. PCB layout modifications are not necessary.
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