PM3602-5-B-RC Equivalent & Substitute Parts

Part Overview

The PM3602-5-B-RC is an unshielded 2-coil inductor array manufactured by Bourns Inc., part of the PM3600 series. This component provides dual inductance configurations: 20 µH when coils are connected in series and 5 µH when connected in parallel, with a maximum DC resistance of 23 mOhm in parallel configuration. The part is currently classified as obsolete, necessitating identification of active equivalent components to maintain design continuity and ensure supply chain availability.

Key Parameters

Parameter	Value
Manufacturer	Bourns Inc.
Series	PM3600
Number of Coils	2
Inductance - Parallel Configuration	5 µH
Inductance - Series Configuration	20 µH
Tolerance	±20%
Current Rating - Parallel	2.41 A
Current Rating - Series	1.2 A
DC Resistance (DCR) - Parallel	23 mOhm Max
DC Resistance (DCR) - Series	92 mOhm Max
Shielding	Unshielded
Operating Temperature Range	-55°C to 125°C
Mounting Type	Surface Mount
Package / Case	Nonstandard
Physical Dimensions	0.452" L x 0.354" W x 0.225" H (11.48mm x 8.99mm x 5.72mm)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the PM3602-5-B-RC is determined by strict equivalence across the following critical parameters:

Dual-coil inductor array configuration with identical inductance values in both series (20 µH) and parallel (5 µH) modes
Matching current ratings: 2.41 A parallel, 1.2 A series
Identical DC resistance specifications: 23 mOhm max parallel, 92 mOhm max series
Unshielded construction
±20% inductance tolerance
Surface mount technology with nonstandard package dimensions (11.48mm x 8.99mm x 5.72mm)
Operating temperature range of -55°C to 125°C
ROHS3 compliance and MSL Level 1 rating

The PM3602-5-RC qualifies as a direct substitute based on complete electrical and mechanical parameter alignment. The primary distinction is packaging format and product status.

Parameter Comparison

Parameter	PM3602-5-B-RC (Main Part)	PM3602-5-RC (Substitute)
Manufacturer	Bourns Inc.	Bourns Inc.
Series	PM3600	PM3600
Number of Coils	2	2
Inductance - Parallel	5 µH	5 µH
Inductance - Series	20 µH	20 µH
Tolerance	±20%	±20%
Current Rating - Parallel	2.41 A	2.41 A
Current Rating - Series	1.2 A	1.2 A
DC Resistance (DCR) - Parallel	23 mOhm Max	23 mOhm Max
DC Resistance (DCR) - Series	92 mOhm Max	92 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	11.48mm x 8.99mm x 5.72mm	11.48mm x 8.99mm x 5.72mm
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active
Packaging Format	Bulk	Tape & Reel (TR)

Engineering Selection Recommendations

The PM3602-5-RC is the direct equivalent for the obsolete PM3602-5-B-RC. Both components are manufactured by Bourns Inc. within the PM3600 series and maintain identical electrical specifications and mechanical dimensions. The substitute part is currently in active production status, ensuring long-term supply chain viability.

Selection of PM3602-5-RC over the obsolete PM3602-5-B-RC is supported by:

Complete electrical parameter equivalence across all inductance, current, and resistance specifications
Identical physical footprint and mounting characteristics for direct PCB compatibility
Active product status providing assured availability and manufacturing continuity
Equivalent compliance certifications: ROHS3 and MSL Level 1
Tape & Reel packaging format suitable for automated assembly processes

No design modifications or circuit re-qualification are required when transitioning from PM3602-5-B-RC to PM3602-5-RC.

Frequently Asked Questions (FAQ)

Q: Can PM3602-5-RC be used as a direct replacement for PM3602-5-B-RC in existing designs?

A: Yes. Both components are electrically and mechanically identical. The substitute part maintains all inductance values, current ratings, DC resistance specifications, and physical dimensions. No circuit modifications are necessary.

Q: What is the difference between PM3602-5-B-RC and PM3602-5-RC?

A: The primary difference is packaging format and product status. PM3602-5-B-RC is supplied in bulk packaging and is obsolete. PM3602-5-RC is supplied in Tape & Reel format and is in active production. All electrical and mechanical specifications are identical.

Q: Are there any compliance or certification differences between these parts?

A: No. Both components carry identical ROHS3 compliance and MSL Level 1 ratings. Environmental and regulatory certifications are equivalent.

Q: Does the Tape & Reel packaging of PM3602-5-RC affect compatibility?

A: No. Tape & Reel packaging is a supply format difference only. The component itself, its electrical performance, and PCB footprint remain unchanged. This packaging format is standard for automated assembly processes.

Q: What are the critical parameters for confirming substitution compatibility?

A: Verify that your application requires: 5 µH parallel inductance, 20 µH series inductance, 2.41 A parallel current rating, 1.2 A series current rating, 23 mOhm maximum parallel DCR, and unshielded construction. If all parameters match, PM3602-5-RC is a valid substitute.

Q: Is the operating temperature range the same for both parts?

A: Yes. Both PM3602-5-B-RC and PM3602-5-RC operate across -55°C to 125°C with identical performance characteristics throughout this range.

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