3372-6003 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3372-6003 is a through-hole rectangular connector header with 60 positions arranged in 2 rows at 0.100" (2.54mm) pitch. This shrouded, male pin header is designed for board-to-board or cable connections with solder termination and push-pull fastening. The part is currently obsolete, making equivalent substitutes necessary for ongoing applications and new designs requiring compatible 60-position 2.54mm pitch headers.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	60
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Shrouding	Shrouded - 4 Wall
Termination	Solder
Contact Finish - Mating	Gold
Insulation Material	Polybutylene Terephthalate (PBT), Polyester, Glass Filled
Operating Temperature	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0
Current Rating	1A

Substitute Part Grouping Explanation

Substitution for the 3372-6003 is determined by strict equivalence across the following critical parameters:

Connector Type & Contact Configuration: Header with male pins
Position Count & Arrangement: 60 positions in 2 rows
Pitch Specification: 0.100" (2.54mm) mating pitch and row spacing
Mounting & Termination: Through-hole solder termination
Shrouding: 4-wall shrouded design
Contact Finish: Gold-plated mating surface
Flammability Compliance: UL94 V-0 rating

The three substitute parts listed below meet these core electrical and mechanical requirements. Variations in insulation material, contact post finish, fastening mechanism details, and operating temperature ranges do not preclude functional substitution when these primary parameters align.

Parameter Comparison

Parameter	3372-6003 (Main)	N3372-6002RB	71918-060LF	CWN-552-60-0021
Manufacturer	3M	3M	Amphenol ICC (FCI)	CW Industries
Product Status	Obsolete	Active	Active	Active
Connector Type	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	60	60	60	60
Number of Rows	2	2	2	2
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Termination	Solder	Solder	Solder	Solder
Contact Finish - Mating	Gold	Gold	Gold, GXT™	Gold
Contact Finish Thickness - Mating	30.0µin (0.76µm)	30.0µin (0.76µm)	30.0µin (0.76µm)	30.0µin (0.76µm)
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
RoHS Status	RoHS non-compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Affected	REACH Unaffected

Engineering Selection Recommendations

N3372-6002RB (3M) is the primary substitute. This part maintains full electrical and mechanical compatibility with the 3372-6003 while offering active product status and RoHS compliance. The insulation material differs (PCT versus PBT), and the contact post finish is pure tin rather than tin-lead, but these variations do not affect functional substitution for standard applications. Current rating increases to 1.75A, providing additional margin.

71918-060LF (Amphenol ICC/FCI) provides an alternative from a different manufacturer. This Quickie™ series header meets all core substitution criteria with active status and RoHS compliance. The contact material is phosphor bronze rather than copper alloy, and the contact post finish thickness is reduced to 78.7µin. REACH status is affected, requiring compliance verification for regulated applications.

CWN-552-60-0021 (CW Industries) offers a third-party option with extended operating temperature range (-55°C to 125°C versus -55°C to 105°C). Contact shape is circular rather than square, and fastening uses latch lock/eject hooks instead of push-pull. These mechanical differences may require board layout or mating connector adjustments. ROHS3 compliance and REACH unaffected status are confirmed.

Frequently Asked Questions (FAQ)

Q: Can N3372-6002RB directly replace 3372-6003 in existing designs?

A: Yes. Both parts share identical pitch, position count, row configuration, shrouding, and gold-plated mating contacts. The insulation material and contact post finish differ, but these do not affect electrical performance or mechanical fit in standard applications.

Q: What is the significance of RoHS compliance differences?

A: The 3372-6003 is RoHS non-compliant, while N3372-6002RB and 71918-060LF are RoHS compliant. For new designs or applications subject to RoHS regulations, compliant substitutes are required. Existing legacy systems using the obsolete part may continue operation without regulatory impact.

Q: Does the contact shape difference in CWN-552-60-0021 affect compatibility?

A: The CWN-552-60-0021 uses circular contacts versus the square contacts of the 3372-6003. While pitch and position count remain identical, the circular contact geometry may require mating connector verification. Consult the mating connector specification to confirm contact pocket compatibility.

Q: Are there current rating implications when substituting?

A: The 3372-6003 is rated at 1A, while N3372-6002RB supports 1.75A. This increase provides additional design margin. The 71918-060LF and CWN-552-60-0021 do not specify current ratings in the provided data; verify against application requirements and mating connector specifications.

Q: What packaging options are available?

A: N3372-6002RB is supplied in bulk packaging. 71918-060LF is supplied in tube packaging. CWN-552-60-0021 packaging is not specified. Confirm packaging requirements for procurement and assembly processes.

Q: How do operating temperature ranges compare?

A: The 3372-6003 and N3372-6002RB operate from -55°C to 105°C. CWN-552-60-0021 extends to 125°C maximum, providing wider thermal range for high-temperature applications. 71918-060LF operating temperature is not specified.

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