3M 3432-5302UG Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3432-5302UG is a through-hole, right-angle rectangular connector header with 40 positions at 2.54mm pitch, designed for board-to-board or cable interconnection applications. This component features shrouded 4-wall construction with solder termination and latch lock/eject fastening. The part is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications requiring compatible 40-position 2.54mm pitch header connectors.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	40
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall
Termination	Solder
Operating Temperature Range	-55°C ~ 105°C
Current Rating	1A
Material Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

Substitution eligibility for the 3432-5302UG is determined by the following critical parameters:

Connector Type & Contact Configuration: Header with male pins
Position Count & Pitch: 40 positions at 0.100" (2.54mm) mating pitch with 2 rows at 0.100" (2.54mm) row spacing
Mounting & Orientation: Through-hole, right-angle mounting
Shrouding: Shrouded 4-wall construction
Termination Method: Solder termination
Operating Temperature: -55°C ~ 105°C range
Flammability Compliance: UL94 V-0 rating

The identified substitutes D3432-5002-AR and N3432-5002RB meet these core electrical and mechanical parameters. Variations in contact material, finish specifications, fastening type, and compliance status are secondary considerations that do not prevent functional substitution in applications where the primary parameters align.

Parameter Comparison

Parameter	3432-5302UG (Main)	D3432-5002-AR	N3432-5002RB
Manufacturer	3M	3M	3M
Product Status	Obsolete	Active	Active
Connector Type	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin
Number of Positions	40	40	40
Number of Rows	2	2	2
Pitch - Mating	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)
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Termination	Solder	Solder	Solder
Contact Length - Mating	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)
Contact Length - Post	0.112" (2.84mm)	0.112" (2.84mm)	0.112" (2.84mm)
Insulation Height	0.340" (8.64mm)	0.340" (8.64mm)	0.340" (8.64mm)
Contact Shape	Square	Square	Square
Contact Finish - Mating	Gold	Gold	Gold
Insulation Material	PCT, Polyester, Glass Filled	PCT, Polyester, Glass Filled	PCT, Polyester, Glass Filled
Features	Keying Slot, Mounting Flange	Keying Slot, Mounting Flange	Keying Slot, Mounting Flange
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
Current Rating (Amps)	1A	1.75A	1.75A
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
RoHS Status	RoHS non-compliant	ROHS3 Compliant	RoHS Compliant
Packaging	-	Tray	Bulk
Inventory Status	709 Pcs New Original In Stock	1152 Pcs New Original In Stock	876 Pcs New Original In Stock

Engineering Selection Recommendations

Both D3432-5002-AR and N3432-5002RB are active production alternatives to the obsolete 3432-5302UG. Selection between these substitutes should be based on the following criteria:

D3432-5002-AR is recommended for applications requiring ROHS3 compliance. This part offers higher current rating (1.75A versus 1A) and is available in tray packaging, suitable for automated assembly processes.

N3432-5002RB is recommended for applications requiring RoHS compliance with bulk packaging. This part also provides the higher current rating (1.75A) and maintains compatibility with the original part's board-to-board or cable connection capability.

Both substitutes maintain the critical electrical and mechanical parameters of the original part, including 40-position configuration, 2.54mm pitch, through-hole right-angle mounting, shrouded 4-wall construction, and UL94 V-0 flammability rating. The choice between them depends on compliance requirements and packaging preferences for your specific application.

Frequently Asked Questions (FAQ)

Q: Can D3432-5002-AR or N3432-5002RB be used as direct replacements for 3432-5302UG?

A: Yes. Both substitutes maintain the critical parameters: 40-position header, 2.54mm pitch, 2-row configuration, through-hole right-angle mounting, shrouded 4-wall design, and solder termination. The physical footprint and mating interface are compatible.

Q: What is the difference between the two substitute parts?

A: The primary differences are packaging format (D3432-5002-AR uses tray; N3432-5002RB uses bulk) and compliance status (D3432-5002-AR is ROHS3 compliant; N3432-5002RB is RoHS compliant). Both offer identical electrical performance with 1.75A current rating.

Q: Does the higher current rating of the substitutes affect compatibility?

A: No. The 1.75A rating of the substitutes exceeds the original 1A specification, providing additional margin. This does not create compatibility issues in applications designed for the original part.

Q: Are there differences in contact material between these parts?

A: Yes. The 3432-5302UG uses copper alloy contacts, while D3432-5002-AR uses brass and N3432-5002RB uses copper alloy. Both materials are suitable for the specified operating temperature range and current ratings.

Q: What packaging options are available?

A: D3432-5002-AR is supplied in tray packaging for automated assembly. N3432-5002RB is supplied in bulk packaging. Select based on your assembly process requirements.

Q: Are all three parts rated for the same operating temperature range?

A: Yes. All three parts are rated for -55°C ~ 105°C operation, ensuring thermal compatibility across applications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message