3M 3429-1502UG Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3429-1502UG is a rectangular connector header designed for through-hole, right-angle board-to-board or cable applications with 26 positions at 0.100" (2.54mm) pitch. This component features shrouded 3-wall construction with solder termination and latch lock/eject fastening. The part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications requiring compatible 26-position 2.54mm pitch header connectors.

Key Parameters

Parameter	Value
Manufacturer Part Number	3429-1502UG
Manufacturer	3M
Category	Rectangular Connectors
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, Right Angle
Termination	Solder
Operating Temperature Range	-55°C ~ 105°C
Current Rating	1A
Material Flammability Rating	UL94 V-0
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the 3429-1502UG is determined by the following critical parameters that must remain constant:

Connector Type & Contact Type: Header with male pins
Position Count & Pitch: 26 positions at 0.100" (2.54mm) mating pitch
Row Configuration: 2 rows with 0.100" (2.54mm) row spacing
Mounting Style: Through hole, right angle orientation
Termination Method: Solder termination
Operating Temperature: -55°C ~ 105°C range
Material Flammability: UL94 V-0 rating
Insulation Material: Polycyclohexylenedimethylene Terephthalate (PCT), Polyester, Glass Filled

The following substitute parts meet these core requirements:

3429-5002: 3M obsolete series equivalent with enhanced shrouding (4-wall) and increased current rating (1.75A)
N3429-5002RB: 3M active series equivalent with 4-wall shrouding, increased current rating (1.75A), and RoHS3 compliance
D3429-5002-AR: 3M active D-series equivalent with 4-wall shrouding, increased current rating (1.75A), RoHS3 compliance, and board-to-cable/wire configuration

Parameter Comparison

Parameter	3429-1502UG	3429-5002	N3429-5002RB	D3429-5002-AR
Manufacturer	3M	3M	3M	3M
Series	3000	3000	3000	D3000
Product Status	Obsolete	Obsolete	Active	Active
Connector Type	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	26	26	26	26
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, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Termination	Solder	Solder	Solder	Solder
Shrouding	Shrouded - 3 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Fastening Type	Latch Lock/Eject Hooks, Short	Push-Pull	Push-Pull	Push-Pull
Contact Length - Mating	0.240" (6.10mm)	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)	0.112" (2.84mm)
Insulation Height	0.310" (7.87mm)	0.340" (8.64mm)	0.340" (8.64mm)	0.340" (8.64mm)
Contact Shape	Square	Square	Square	Square
Contact Finish - Mating	Gold	Gold	Gold	Gold
Contact Finish - Post	Tin-Lead	Tin-Lead	Tin	Tin
Contact Material	Copper Alloy	Copper Alloy	Copper Alloy	Brass
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Current Rating (Amps)	1A	1.75A	1.75A	1.75A
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	RoHS non-compliant	RoHS non-compliant	RoHS3 Compliant	RoHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Active Production (Recommended):

N3429-5002RB and D3429-5002-AR are the preferred substitutes as both maintain active product status with RoHS3 compliance. N3429-5002RB is suitable for board-to-board or cable applications, while D3429-5002-AR is optimized for board-to-cable/wire configurations. Both provide enhanced current rating (1.75A versus 1A) and improved shrouding (4-wall versus 3-wall).

For Legacy System Maintenance:

3429-5002 provides functional equivalence with identical series designation but remains obsolete. This part is suitable only when active alternatives cannot meet specific legacy system requirements.

Compliance Considerations:

The original 3429-1502UG is RoHS non-compliant. Designs requiring RoHS3 compliance must transition to N3429-5002RB or D3429-5002-AR. Both active alternatives maintain identical electrical and mechanical compatibility while meeting current regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can N3429-5002RB directly replace 3429-1502UG in existing designs?

A: Yes. Both parts maintain identical connector type, position count (26), pitch (0.100"/2.54mm), row configuration, mounting style (through-hole right angle), and operating temperature range (-55°C ~ 105°C). The N3429-5002RB provides enhanced current rating (1.75A) and improved shrouding (4-wall), making it functionally superior for the same footprint and mating interface.

Q: What is the difference between N3429-5002RB and D3429-5002-AR?

A: Both are active 3M products with identical electrical specifications and current ratings. The primary difference is application style: N3429-5002RB supports board-to-board or cable connections, while D3429-5002-AR is configured for board-to-cable/wire applications. Contact material also differs (copper alloy versus brass). Selection depends on the specific mating interface required.

Q: Are there packaging differences between the substitute parts?

A: Yes. 3429-5002 and N3429-5002RB are supplied in bulk packaging, while D3429-5002-AR is supplied in tray packaging. Packaging selection should align with production volume and handling requirements.

Q: Does the increased insulation height (0.340" versus 0.310") affect PCB layout?

A: The 0.030" (0.77mm) increase in insulation height must be verified against PCB clearance requirements and adjacent component placement. This dimension change is consistent across all substitute parts and should be evaluated during design transition.

Q: What is the significance of the fastening type change from latch lock/eject hooks to push-pull?

A: The fastening mechanism differs between the original and substitutes. The 3429-1502UG uses short latch lock/eject hooks, while substitutes employ push-pull fastening. This affects mating and unmating procedures and must be considered for connector handling in the application.

Q: Is RoHS3 compliance mandatory for my application?

A: RoHS3 compliance is required for products sold in the European Union and many other regulated markets. N3429-5002RB and D3429-5002-AR meet RoHS3 requirements, while 3429-1502UG and 3429-5002 do not. Verify regulatory requirements for your target markets before part selection.

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