PM3602-250-B-RC Equivalent & Substitute Parts

Part Overview

The PM3602-250-B-RC is an unshielded 2-coil inductor array manufactured by Bourns Inc., designed for surface mount applications. This component features dual inductance configurations: 1 mH when coils are connected in series and 250 µH when connected in parallel, with a maximum DC resistance of 1.19 Ohm in parallel configuration and 4.76 Ohm in series configuration.

The PM3602-250-B-RC is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production, repair, and redesign applications where this inductor array is specified.

Key Parameters

Parameter	Value
Manufacturer	Bourns Inc.
Series	PM3600
Number of Coils	2
Inductance - Parallel	250 µH
Inductance - Series	1 mH
Tolerance	±20%
Current Rating - Parallel	330 mA
Current Rating - Series	170 mA
DC Resistance (DCR) - Parallel	1.19 Ohm Max
DC Resistance (DCR) - Series	4.76 Ohm Max
Shielding	Unshielded
Operating Temperature Range	-55°C to 125°C
Mounting Type	Surface Mount
Package / Case	Nonstandard
Size / Dimension	0.452" L x 0.354" W (11.48mm x 8.99mm)
Height	0.225" (5.72mm)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the PM3602-250-B-RC is determined by strict equivalence across the following critical parameters:

Inductance values: Both parallel (250 µH) and series (1 mH) configurations must match exactly
Current ratings: Parallel (330 mA) and series (170 mA) ratings must be maintained
DC resistance: Maximum DCR values for both configurations must not exceed specified limits
Coil configuration: Dual-coil (2-coil) inductor array architecture
Electrical tolerance: ±20% tolerance specification
Physical dimensions: Nonstandard package with identical footprint (11.48mm x 8.99mm x 5.72mm)
Environmental specifications: Operating temperature range -55°C to 125°C
Compliance: ROHS3 compliance and MSL Level 1 rating

The PM3602-250-RC qualifies as a direct substitute based on identical electrical and mechanical parameters across all specified criteria.

Parameter Comparison

Parameter	PM3602-250-B-RC (Main Part)	PM3602-250-RC (Substitute)	Match Status
Manufacturer	Bourns Inc.	Bourns Inc.	Identical
Series	PM3600	PM3600	Identical
Number of Coils	2	2	Identical
Inductance - Parallel	250 µH	250 µH	Identical
Inductance - Series	1 mH	1 mH	Identical
Tolerance	±20%	±20%	Identical
Current Rating - Parallel	330 mA	330 mA	Identical
Current Rating - Series	170 mA	170 mA	Identical
DC Resistance (DCR) - Parallel	1.19 Ohm Max	1.19 Ohm Max	Identical
DC Resistance (DCR) - Series	4.76 Ohm Max	4.76 Ohm Max	Identical
Shielding	Unshielded	Unshielded	Identical
Operating Temperature Range	-55°C to 125°C	-55°C to 125°C	Identical
Mounting Type	Surface Mount	Surface Mount	Identical
Package / Case	Nonstandard	Nonstandard	Identical
Size / Dimension	0.452" L x 0.354" W (11.48mm x 8.99mm)	0.452" L x 0.354" W (11.48mm x 8.99mm)	Identical
Height	0.225" (5.72mm)	0.225" (5.72mm)	Identical
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Identical
Product Status	Obsolete	Active	Substitute is Active
Packaging	Bulk	Tape & Reel (TR)	Different Format

Engineering Selection Recommendations

The PM3602-250-RC is a direct electrical and mechanical equivalent to the PM3602-250-B-RC. Both components are manufactured by Bourns Inc. within the PM3600 series and maintain identical specifications across all critical electrical parameters, physical dimensions, and environmental ratings.

The primary distinction between these parts is product status and packaging format. The PM3602-250-B-RC is classified as obsolete, while the PM3602-250-RC maintains active product status. The PM3602-250-RC is supplied in Tape & Reel (TR) packaging format, whereas the main part was supplied in bulk packaging. Both components carry ROHS3 compliance certification and MSL Level 1 rating.

For applications currently specified with PM3602-250-B-RC, the PM3602-250-RC provides full functional and physical compatibility without design modification or circuit re-evaluation.

Frequently Asked Questions (FAQ)

Q: Can PM3602-250-RC be used as a direct replacement for PM3602-250-B-RC?

A: Yes. Both components are electrically and mechanically identical across all specified parameters, including inductance values, current ratings, DC resistance, physical dimensions, and environmental operating range. The substitute part maintains active product status.

Q: What is the difference between the two part numbers?

A: The primary difference is packaging format. PM3602-250-B-RC was supplied in bulk packaging, while PM3602-250-RC is supplied in Tape & Reel (TR) format. All electrical and mechanical specifications are identical.

Q: Are there any compliance or certification differences?

A: No. Both parts carry identical ROHS3 compliance certification and MSL Level 1 rating. Environmental operating temperature range and all regulatory classifications are equivalent.

Q: Does the Tape & Reel packaging affect circuit performance?

A: No. Packaging format does not affect component electrical performance or mechanical fit. The physical dimensions and footprint remain identical regardless of packaging format.

Q: What is the current availability status of these parts?

A: PM3602-250-B-RC is obsolete. PM3602-250-RC maintains active product status with current inventory availability.

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