3M 3429-2602 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3429-2602 is a through-hole rectangular connector header with 26 positions arranged in 2 rows at 0.100" (2.54mm) pitch. This connector features shrouded 3-wall design with latch lock/eject hooks and is rated for 1A per contact at operating temperatures from -55°C to 105°C. The part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. Substitute parts maintain core electrical and mechanical compatibility while offering improved product status, compliance certifications, or enhanced performance characteristics.

Key Parameters

Parameter	3429-2602 Specification
Connector Type	Header
Contact Type	Male Pin
Number of Positions	26
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Shrouding	Shrouded - 3 Wall
Fastening Type	Latch Lock/Eject Hooks, Long
Current Rating	1A
Operating Temperature	-55°C ~ 105°C
Contact Finish - Mating	Gold
Contact Finish - Post	Tin-Lead
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following core parameters:

Connector Type: Header
Contact Type: Male Pin
Number of Positions: 26
Number of Rows: 2
Pitch - Mating: 0.100" (2.54mm)
Row Spacing - Mating: 0.100" (2.54mm)
Mounting Type: Through Hole
Termination: Solder
Material Flammability Rating: UL94 V-0

Substitute parts are grouped into two categories:

Category A - Direct Mechanical Equivalents (3M Series): Parts 3429-6002, D3429-6002-AR, and N3429-6302RB maintain identical position count, pitch, and mounting specifications. These parts differ in shrouding design (4-wall vs. 3-wall), fastening mechanism (push-pull vs. latch lock), and compliance status.

Category B - Cross-Manufacturer Equivalents (TE Connectivity AMP-Latch & Amphenol ICC Quickie™): Parts 102321-6, 2-5102321-6, 2-5499206-6, 499206-6, 499922-6, 5102321-6, and 53611-S26-4LF maintain identical position count and pitch specifications. These parts feature different contact post lengths, insulation heights, and fastening mechanisms while preserving electrical compatibility.

Parameter Comparison

Part Number	Manufacturer	Series	Positions	Pitch (mm)	Rows	Shrouding	Fastening Type	Current Rating (A)	Operating Temp (°C)	Contact Finish - Mating	Contact Finish - Post	Product Status	RoHS Status
3429-2602	3M	3000	26	2.54	2	Shrouded - 3 Wall	Latch Lock/Eject Hooks, Long	1	-55 ~ 105	Gold	Tin-Lead	Obsolete	RoHS non-compliant
3429-6002	3M	3000	26	2.54	2	Shrouded - 4 Wall	Push-Pull	1	-55 ~ 105	Gold	Tin-Lead	Obsolete	RoHS non-compliant
D3429-6002-AR	3M	D3000	26	2.54	2	Shrouded - 4 Wall	Push-Pull	1.75	-55 ~ 105	Gold	Tin	Active	ROHS3 Compliant
N3429-6002RB	3M	3000	26	2.54	2	Shrouded - 4 Wall	Push-Pull	1.75	-55 ~ 105	Gold	Tin	Active	RoHS Compliant
102321-6	TE Connectivity AMP Connectors	AMP-Latch	26	2.54	2	Shrouded - 4 Wall	Latch Lock/Eject Hooks, Long	1	-65 ~ 105	Gold or Gold-Palladium	Tin-Lead	Active	RoHS non-compliant
2-5102321-6	TE Connectivity AMP Connectors	AMP-Latch	26	2.54	2	Shrouded - 4 Wall	Latch Lock/Eject Hooks, Long	1	-65 ~ 105	Gold or Gold-Palladium	Tin	Active	ROHS3 Compliant
2-5499206-6	TE Connectivity AMP Connectors	AMP-Latch	26	2.54	2	Shrouded - 4 Wall	Latch Lock/Eject Hooks, Long	1	-65 ~ 105	Gold or Gold-Palladium	Tin	Active	ROHS3 Compliant
499206-6	TE Connectivity AMP Connectors	AMP-Latch	26	2.54	2	Shrouded - 4 Wall	Latch Lock/Eject Hooks, Long	1	-65 ~ 105	Gold or Gold-Palladium	Tin-Lead	Active	Not applicable
499922-6	TE Connectivity AMP Connectors	AMP-Latch	26	2.54	2	Shrouded - 4 Wall	Latch Lock/Eject Hooks, Long	1	-65 ~ 105	Gold or Gold-Palladium	Tin-Lead	Active	RoHS non-compliant
5102321-6	TE Connectivity AMP Connectors	AMP-Latch	26	2.54	2	Shrouded - 4 Wall	Latch Lock/Eject Hooks, Long	1	-65 ~ 105	Gold or Gold-Palladium	Tin	Active	ROHS3 Compliant
53611-S26-4LF	Amphenol ICC (FCI)	Quickie™	26	2.54	2	Shrouded - 4 Wall	Latch Lock/Eject Hooks	-	-	Gold or Gold, GXT™	Tin	Active	RoHS Compliant

Engineering Selection Recommendations

For Active Product Status with RoHS3 Compliance: D3429-6002-AR, N3429-6002RB, 2-5102321-6, 2-5499206-6, 5102321-6, and 53611-S26-4LF are active products with current manufacturing support. D3429-6002-AR and N3429-6002RB offer 3M brand continuity with increased current rating (1.75A) and RoHS compliance. TE Connectivity AMP-Latch series (2-5102321-6, 2-5499206-6, 5102321-6) provide ROHS3 compliance with extended operating temperature range (-65°C to 105°C) and established cross-industry compatibility.

For Mechanical Compatibility with Latch Lock Fastening: 102321-6, 2-5102321-6, 2-5499206-6, 499206-6, 499922-6, 5102321-6, and 53611-S26-4LF preserve the latch lock/eject hook fastening mechanism of the original 3429-2602, ensuring direct mechanical interchangeability in existing socket designs.

For Legacy System Continuity: 3429-6002 maintains 3M series designation and identical electrical specifications but introduces push-pull fastening. This part is suitable only where mechanical redesign is acceptable.

For Extended Temperature Range: TE Connectivity AMP-Latch series parts operate from -65°C to 105°C, providing 10°C lower minimum temperature specification compared to the original part's -55°C to 105°C range.

Frequently Asked Questions (FAQ)

Q: Can 3429-6002 directly replace 3429-2602 in existing designs? A: Electrical compatibility is maintained (26 positions, 2.54mm pitch, 1A rating, solder termination). However, fastening mechanism differs: 3429-6002 uses push-pull fastening while 3429-2602 uses latch lock/eject hooks. Socket redesign may be required.

Q: What is the primary difference between 3M 3000 series and D3000 series substitutes? A: D3429-6002-AR (D3000 series) is an active product with ROHS3 compliance, increased current rating (1.75A), and tin post finish. The 3000 series parts (3429-6002, N3429-6002RB) are obsolete or transitional products with lower current ratings and legacy compliance status.

Q: Are TE Connectivity AMP-Latch parts mechanically compatible with 3M 3429-2602? A: Yes. Both maintain 26 positions, 2.54mm pitch, 2-row configuration, through-hole solder termination, and latch lock fastening. Contact post length and insulation height differ slightly but do not affect electrical or mechanical interchangeability in standard applications.

Q: Which substitute offers the best compliance profile for new designs? A: D3429-6002-AR, N3429-6002RB, 2-5102321-6, 2-5499206-6, 5102321-6, and 53611-S26-4LF all carry RoHS compliance certifications. D3429-6002-AR and N3429-6002RB provide 3M brand continuity with active product status. TE Connectivity and Amphenol ICC alternatives offer established cross-manufacturer qualification.

Q: Does packaging format affect electrical or mechanical performance? A: No. Bulk and tray packaging formats do not affect connector electrical specifications or mechanical compatibility. Packaging selection is driven by inventory management and assembly process requirements.

Q: What is the significance of contact finish differences (Tin vs. Tin-Lead)? A: Contact finish affects solderability and long-term reliability. Tin finish (RoHS compliant) is standard for new designs. Tin-Lead finish (legacy) provides established performance history but is restricted in RoHS-regulated applications. Both finishes maintain electrical compatibility at 1A rating.

Q: Can 53611-S26-4LF substitute for 3429-2602 despite missing current rating specification? A: 53611-S26-4LF maintains all critical mechanical and electrical parameters (26 positions, 2.54mm pitch, latch lock fastening, UL94 V-0 rating, gold mating finish). The missing current rating specification does not indicate incompatibility; however, application-specific validation is recommended for current-critical designs.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message