3M 3372-5603 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3372-5603 is a through-hole, right-angle rectangular connector header with 60 positions arranged in 2 rows at 0.100" (2.54mm) pitch. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity. The connector features shrouded 4-wall construction with latch lock/eject hooks and gold-plated mating contacts suitable for board-to-board or cable applications in industrial and commercial electronics.

Substiute Parts

3372-5603

3MIn Stock: 11623372-5603 Datasheet

Current PartRFQ

N3372-5002RB

3MIn Stock: 1300N3372-5002RB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The 3M N3372-5002RB qualifies as a direct substitute for the 3372-5603 based on the following critical parameters:

• Electrical Compatibility: Identical pitch (0.100"/2.54mm), row spacing (0.100"/2.54mm), position count (60), and row configuration (2 rows)
• Mechanical Compatibility: Matching through-hole, right-angle mounting type with shrouded 4-wall construction
• Contact Specifications: Identical contact type (male pin), mating contact finish (gold), contact material (copper alloy), and current rating (1.75A)
• Environmental Ratings: Identical operating temperature range (-55°C ~ 105°C) and material flammability rating (UL94 V-0)
• Insulation Material: Identical PCT polyester glass-filled composition

The primary differences are fastening type (push-pull versus latch lock/eject hooks), contact post length (0.112" versus 0.155"), and post finish (tin versus tin-lead), which do not prevent functional substitution in standard applications.

Parameter Comparison

Engineering Selection Recommendations

The N3372-5002RB is the active equivalent for the obsolete 3372-5603. Selection of the substitute part is based on the following engineering factors:

Product Status: The 3372-5603 is obsolete, while the N3372-5002RB is active and maintains full manufacturing support and availability.

Regulatory Compliance: The N3372-5002RB achieves RoHS compliance, whereas the 3372-5603 is RoHS non-compliant. For applications subject to RoHS directives, the substitute part is required.

Electrical and Mechanical Equivalence: Both parts maintain identical electrical ratings (1.75A current, -55°C to 105°C operating range) and mechanical specifications (60-position, 2-row, 0.100" pitch configuration with through-hole right-angle mounting).

Contact Specifications: Both parts feature gold-plated mating contacts with identical finish thickness (30.0µin/0.76µm) and copper alloy contact material, ensuring equivalent signal integrity and reliability.

Fastening Mechanism Difference: The substitute uses push-pull fastening versus the original latch lock/eject hooks. This difference affects mating/unmating force characteristics and connector retention method but does not impact electrical performance or mechanical fit in standard board-to-board applications.

Post Length Consideration: The substitute has a shorter contact post (0.112" versus 0.155"). Verify PCB pad depth and solder joint geometry during design transition to ensure adequate solder fillet formation.

Frequently Asked Questions (FAQ)

Q: Can the N3372-5002RB directly replace the 3372-5603 in existing designs?

A: Yes, for electrical and mechanical functionality. The N3372-5002RB maintains identical pitch, position count, row configuration, contact type, and current rating. However, the fastening mechanism differs (push-pull versus latch lock/eject hooks), and the contact post is shorter (0.112" versus 0.155"). Verify that your PCB design accommodates the shorter post length and that the push-pull fastening mechanism is acceptable for your application.

Q: What is the impact of the different fastening types?

A: The 3372-5603 uses latch lock/eject hooks for positive retention with mechanical locking. The N3372-5002RB uses push-pull fastening, which provides a different mating/unmating interface. Both are industry-standard fastening methods; selection depends on your connector retention requirements and mating/unmating frequency.

Q: Does the RoHS compliance difference affect substitution?

A: The N3372-5002RB is RoHS compliant while the 3372-5603 is not. For applications or markets requiring RoHS compliance, the substitute part is necessary. The compliance difference reflects the post-lead-free transition manufacturing of the active part.

Q: Are the contact post finishes interchangeable?

A: The 3372-5603 has tin-lead post finish; the N3372-5002RB has tin post finish. Both are solder-compatible and provide equivalent solderability. The tin finish on the substitute reflects modern lead-free manufacturing standards.

Q: What should I verify before implementing this substitution?

A: Confirm that your PCB design accommodates the shorter contact post length (0.112" versus 0.155") to ensure proper solder joint formation. Verify that the push-pull fastening mechanism is compatible with your connector mating/unmating procedures. Confirm that RoHS compliance is required for your application.

Q: Is the N3372-5002RB available in the same packaging as the 3372-5603?

A: The N3372-5002RB is supplied in bulk packaging. Verify packaging requirements for your procurement and assembly processes.