PM3700-60 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The PM3700-60 is a 5 mH Common Mode Choke (CMC) manufactured by Bourns Inc., designed for 2-line surface mount applications with a maximum current rating of 2A and DC resistance of 70mOhm. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and procurement continuity. The PM3700-60 operates across a temperature range of -55°C to 125°C and is packaged in a horizontal 4-pad configuration with dimensions of 21.60mm × 21.60mm × 11.43mm maximum height.

Substiute Parts

PM3700-60

Bourns Inc.In Stock: 1048PM3700-60 Datasheet

Current PartRFQ

PM3700-60-RC

Bourns Inc.In Stock: 4961PM3700-60-RC Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PM3700-60 is determined by strict equivalence across the following critical parameters:

• Inductance value: 5 mH @ 1 kHz
• Number of lines: 2-line configuration
• Current rating: 2A maximum
• DC resistance: 70mOhm maximum
• Physical footprint: 21.60mm × 21.60mm × 11.43mm
• Package type: Horizontal, 4-pad surface mount
• Operating temperature range: -55°C to 125°C
• Moisture sensitivity: MSL 1

The PM3700-60-RC meets all these parameters identically, differing only in packaging format (Tape & Reel versus cut tape) and product status (Active versus Obsolete).

Parameter Comparison

Engineering Selection Recommendations

The PM3700-60-RC is the direct parametric equivalent to the PM3700-60. Both components share identical electrical and mechanical specifications across all critical parameters. The primary distinction is product status: the PM3700-60 is obsolete while the PM3700-60-RC is active in production.

For new designs or ongoing procurement, the PM3700-60-RC is the appropriate selection. This part maintains full electrical and mechanical compatibility with the PM3700-60 while offering the advantage of active product status and ROHS3 compliance. The packaging difference (Tape & Reel versus cut tape) is a procurement consideration and does not affect component performance or board-level compatibility.

Frequently Asked Questions (FAQ)

Q: Can the PM3700-60-RC be used as a direct replacement for the PM3700-60?

A: Yes. The PM3700-60-RC is electrically and mechanically identical to the PM3700-60. Both components have the same inductance (5 mH @ 1 kHz), current rating (2A), DC resistance (70mOhm), physical dimensions (21.60mm × 21.60mm × 11.43mm), and operating temperature range (-55°C to 125°C). The components are pin-compatible and footprint-compatible.

Q: What is the difference between the PM3700-60 and PM3700-60-RC?

A: The primary differences are product status and packaging format. The PM3700-60 is obsolete and supplied in cut tape format, while the PM3700-60-RC is an active product supplied in Tape & Reel format. Additionally, the PM3700-60-RC is ROHS3 compliant, whereas the PM3700-60 is RoHS non-compliant.

Q: Are there any electrical performance differences between these parts?

A: No. Both parts have identical electrical specifications: 5 mH inductance at 1 kHz, 2A maximum current rating, and 70mOhm maximum DC resistance. They operate across the same temperature range and have the same moisture sensitivity level (MSL 1).

Q: Does the Tape & Reel packaging of the PM3700-60-RC affect compatibility?

A: No. Tape & Reel packaging is a procurement and assembly format consideration. It does not affect the component's electrical performance, physical footprint, or board-level compatibility. The component itself is identical regardless of packaging format.

Q: Is the PM3700-60-RC suitable for RoHS-compliant applications?

A: Yes. The PM3700-60-RC is ROHS3 compliant, making it suitable for applications requiring RoHS compliance. The original PM3700-60 is RoHS non-compliant.