3372-5503UG Equivalent & Substitute Parts

Part Overview

The 3372-5503UG is a rectangular connector header manufactured by 3M, designed for through-hole, right-angle board-to-board or cable applications. This 60-position connector operates across a wide temperature range and features shrouded 4-wall construction with gold-plated mating contacts. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing system support and component procurement.

Substiute Parts

3372-5503UG

3MIn Stock: 6853372-5503UG Datasheet

Current PartRFQ

N3372-5002RB

3MIn Stock: 1300N3372-5002RB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 3372-5503UG is determined by strict equivalence across the following critical parameters:

• Connector Configuration: 60-position, 2-row header with 0.100" (2.54mm) pitch and row spacing
• Mounting Geometry: Through-hole, right-angle orientation with shrouded 4-wall construction
• Electrical Performance: 1.75A current rating and -55°C ~ 105°C operating temperature range
• Contact System: Male pin contacts with gold-plated mating surfaces and tin-lead post finish
• Mechanical Interface: Solder termination with square contact shape and keying slot features

The substitute part N3372-5002RB maintains full compatibility across all these parameters while offering improved product status and compliance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The N3372-5002RB substitute provides direct functional equivalence to the 3372-5503UG across all critical electrical and mechanical parameters. Selection of the substitute is supported by the following factors:

Product Status: The 3372-5503UG is obsolete, while N3372-5002RB maintains active product status with confirmed inventory availability (1286 pcs in stock versus 658 pcs for the main part).

Compliance: N3372-5002RB is RoHS Compliant and REACH Unaffected, whereas the 3372-5503UG is RoHS non-compliant. This distinction is significant for applications subject to environmental regulations.

Fastening Mechanism: The substitute employs a Push-Pull fastening type compared to the Latch Lock/Eject Hooks, Short mechanism of the main part. Both fastening systems are compatible with the 60-position, 2-row configuration.

Contact Post Finish: The substitute features tin post finish with identical thickness (200.0µin / 5.08µm) compared to the tin-lead post finish of the main part, maintaining electrical performance characteristics.

Contact Finish Thickness - Mating: The substitute provides enhanced gold plating thickness (30.0µin / 0.76µm) compared to the main part (15.0µin / 0.38µm), offering improved contact durability.

Frequently Asked Questions (FAQ)

Q: Are the 3372-5503UG and N3372-5002RB mechanically interchangeable?

A: Yes. Both connectors share identical pitch (0.100" / 2.54mm), row spacing, position count (60 positions, 2 rows), mounting type (through-hole, right-angle), and shrouding configuration (4-wall). The connectors are designed for the same PCB footprint and mating interface.

Q: What is the difference in fastening mechanisms between these parts?

A: The 3372-5503UG uses Latch Lock/Eject Hooks (Short), while the N3372-5002RB uses Push-Pull fastening. Both mechanisms provide secure mating and are compatible with the connector's 60-position configuration. Selection depends on application-specific requirements for connector engagement and disengagement.

Q: Does the difference in contact post finish affect electrical performance?

A: Both parts maintain identical current rating (1.75A) and operating temperature range (-55°C ~ 105°C). The tin post finish of the substitute (N3372-5002RB) versus tin-lead of the main part (3372-5503UG) does not affect electrical performance. The post finish thickness is identical (200.0µin / 5.08µm) in both cases.

Q: Why is RoHS compliance important for this substitution?

A: The N3372-5002RB is RoHS Compliant, while the 3372-5503UG is RoHS non-compliant. RoHS compliance is mandatory for many applications, particularly in consumer electronics and regulated industries. The substitute meets these regulatory requirements.

Q: Is the enhanced gold plating thickness on the substitute part beneficial?

A: The N3372-5002RB provides 30.0µin (0.76µm) gold plating on mating contacts compared to 15.0µin (0.38µm) on the main part. Enhanced plating thickness can improve contact durability and reduce wear in high-cycle mating applications, though both specifications meet the connector's electrical requirements.

Q: What packaging options are available?

A: The 3372-5503UG is supplied in standard packaging, while the N3372-5002RB is available in Bulk packaging. Bulk packaging typically offers cost advantages for high-volume procurement.

Q: Are both parts suitable for board-to-board and cable applications?

A: Yes. Both the 3372-5503UG and N3372-5002RB are classified as Board to Board or Cable style connectors, supporting both application types with identical mechanical and electrical characteristics.