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PM3604-15-B-RC Equivalent & Substitute Parts
Part Overview
The PM3604-15-B-RC is an unshielded 2-coil inductor array manufactured by Bourns Inc. from the PM3600 series. This component provides dual inductance configurations: 15 µH when coils are connected in parallel and 60 µH when connected in series. The part is rated for 2.2 A in parallel configuration and 1.1 A in series configuration, with a maximum DC resistance of 41 mOhm in parallel mode.
The PM3604-15-B-RC is classified as obsolete. Locating equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and repair applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Inductance (Parallel) | 15 µH |
| Inductance (Series) | 60 µH |
| Current Rating (Parallel) | 2.2 A |
| Current Rating (Series) | 1.1 A |
| DC Resistance - Parallel | 41 mOhm Max |
| DC Resistance - Series | 160 mOhm Max |
| Tolerance | ±20% |
| Operating Temperature Range | -55°C to 125°C |
| Shielding | Unshielded |
| Mounting Type | Surface Mount |
| Package Type | Nonstandard |
| Physical Dimensions | 0.550" L × 0.452" W × 0.265" H (13.97mm × 11.48mm × 6.73mm) |
| Number of Coils | 2 |
Substitute Part Grouping Explanation
Substitution eligibility for the PM3604-15-B-RC is determined by strict equivalence across the following electrical and mechanical parameters:
- Inductance values in both parallel (15 µH) and series (60 µH) configurations
- Current ratings for both configurations (2.2 A parallel, 1.1 A series)
- DC resistance specifications (41 mOhm max parallel, 160 mOhm max series)
- Inductance tolerance (±20%)
- Operating temperature range (-55°C to 125°C)
- Unshielded construction
- Surface mount technology
- Nonstandard package footprint and physical dimensions (0.550" × 0.452" × 0.265")
- Two-coil array configuration
The PM3604-15-RC qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility across all critical parameters.
Parameter Comparison
| Parameter | PM3604-15-B-RC (Main Part) | PM3604-15-RC (Substitute) |
|---|---|---|
| Manufacturer | Bourns Inc. | Bourns Inc. |
| Series | PM3600 | PM3600 |
| Number of Coils | 2 | 2 |
| Inductance (Parallel) | 15 µH | 15 µH |
| Inductance (Series) | 60 µH | 60 µH |
| Tolerance | ±20% | ±20% |
| Current Rating (Parallel) | 2.2 A | 2.2 A |
| Current Rating (Series) | 1.1 A | 1.1 A |
| DC Resistance - Parallel | 41 mOhm Max | 41 mOhm Max |
| DC Resistance - Series | 160 mOhm Max | 160 mOhm Max |
| Shielding | Unshielded | Unshielded |
| Operating Temperature | -55°C to 125°C | -55°C to 125°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | Nonstandard | Nonstandard |
| Physical Dimensions | 0.550" L × 0.452" W × 0.265" H | 0.550" L × 0.452" W × 0.265" H |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected |
| Product Status | Obsolete | Active |
| Packaging | Bulk | Tape & Reel (TR) |
Engineering Selection Recommendations
The PM3604-15-RC is the qualified substitute for the obsolete PM3604-15-B-RC. Both parts are manufactured by Bourns Inc. and maintain identical electrical and mechanical specifications across all critical parameters.
The primary distinction between the two parts is product status and packaging format. The PM3604-15-B-RC is obsolete, while the PM3604-15-RC maintains active production status. The PM3604-15-RC is supplied in Tape & Reel (TR) packaging, whereas the main part uses bulk packaging. Both parts carry ROHS3 compliance and REACH unaffected status, confirming regulatory equivalence.
For new designs or production continuity, the PM3604-15-RC is the appropriate selection due to its active availability and identical functional performance.
Frequently Asked Questions (FAQ)
Q: Can the PM3604-15-RC be used as a direct replacement for the PM3604-15-B-RC?
A: Yes. The PM3604-15-RC is electrically and mechanically equivalent to the PM3604-15-B-RC. Both parts share identical inductance values, current ratings, DC resistance specifications, operating temperature range, and physical dimensions. The substitute part is suitable for direct board-level replacement.
Q: What is the difference between the two parts?
A: The PM3604-15-B-RC is obsolete, while the PM3604-15-RC is in active production. The packaging differs: the main part uses bulk packaging, and the substitute uses Tape & Reel (TR) format. All electrical and mechanical specifications are identical.
Q: Are there any compliance or regulatory differences?
A: No. Both parts carry ROHS3 compliance and REACH unaffected status. Regulatory certifications are equivalent.
Q: Does packaging format affect component performance?
A: No. Packaging format (bulk versus Tape & Reel) does not affect electrical performance or mechanical compatibility. The difference is in supply and handling format only.
Q: What are the key parameters that determine substitution eligibility?
A: Substitution is based on matching inductance values (15 µH parallel, 60 µH series), current ratings (2.2 A parallel, 1.1 A series), DC resistance specifications, tolerance (±20%), operating temperature range (-55°C to 125°C), unshielded construction, surface mount technology, and physical dimensions (0.550" × 0.452" × 0.265").
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