3M 3408-6302-UG Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3408-6302-UG is a shrouded rectangular connector header with 16 positions arranged in 2 rows at 0.100" (2.54mm) pitch. This through-hole component features male pins with gold-plated mating contacts and tin-lead plated posts, designed for board-to-board or cable interconnection applications. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	16
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Shrouding	Shrouded - 4 Wall
Mounting Type	Through Hole
Termination	Solder
Operating Temperature Range	-55°C ~ 105°C
Current Rating	1A
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution for the 3408-6302-UG is determined by the following critical parameters:

Connector configuration: 16-position, 2-row header with 0.100" (2.54mm) mating pitch and row spacing
Contact type: Male pin configuration
Shrouding: 4-wall shrouded design
Mounting: Through-hole solder termination
Operating temperature: -55°C to 105°C minimum
Flammability: UL94 V-0 rating

Substitute parts must maintain these core electrical and mechanical specifications. Variations in fastening type (push-pull versus latch lock), contact finish thickness, post material composition, and packaging format are permitted when the primary functional parameters remain equivalent. Product status and RoHS compliance differ among substitutes but do not affect electrical or mechanical interchangeability.

Parameter Comparison

Part Number	Manufacturer	Positions	Pitch (mm)	Rows	Contact Type	Fastening Type	Operating Temp (°C)	Current Rating (A)	RoHS Status	Product Status
3408-6302-UG	3M	16	2.54	2	Male Pin	Latch Lock/Eject Hooks, Long	-55 ~ 105	1	RoHS non-compliant	Obsolete
D3408-6002-AR	3M	16	2.54	2	Male Pin	Push-Pull	-55 ~ 105	1.75	ROHS3 Compliant	Active
N3408-6002RB	3M	16	2.54	2	Male Pin	Push-Pull	-55 ~ 105	1.75	RoHS Compliant	Active
499206-3	TE Connectivity AMP Connectors	16	2.54	2	Male Pin	Latch Lock/Eject Hooks, Long	-65 ~ 105	1	RoHS non-compliant	Active
5102321-3	TE Connectivity AMP Connectors	16	2.54	2	Male Pin	Latch Lock/Eject Hooks, Long	-65 ~ 105	1	ROHS3 Compliant	Active
53611-G16-4LF	Amphenol ICC (FCI)	16	2.54	2	Male Pin	Latch Lock/Eject Hooks	Not specified	Not specified	RoHS Compliant	Active
53611-S16-4LF	Amphenol ICC (FCI)	16	2.54	2	Male Pin	Latch Lock/Eject Hooks	Not specified	Not specified	RoHS Compliant	Active
5499206-3	TE Connectivity AMP Connectors	16	2.54	2	Male Pin	Latch Lock/Eject Hooks, Long	-65 ~ 105	1	RoHS Compliant	Active
5499923-3	TE Connectivity AMP Connectors	16	2.54	2	Male Pin	Latch Lock/Eject Hooks, Long	-65 ~ 105	1	ROHS3 Compliant	Active
5746443-3	TE Connectivity AMP Connectors	16	2.54	2	Male Pin	Latch Lock/Eject Hooks	-65 ~ 105	1	RoHS Compliant	Active
71980-116LF	Amphenol ICC (FCI)	16	2.54	2	Male Pin	Latch Lock/Eject Hooks	Not specified	Not specified	RoHS Compliant	Active

Engineering Selection Recommendations

Primary Substitutes for Direct Replacement:

The 3M D3408-6002-AR and N3408-6002RB represent the closest functional equivalents from the original manufacturer. Both maintain the 16-position, 2-row 2.54mm pitch configuration with identical operating temperature range. D3408-6002-AR is ROHS3 compliant and active in production, while N3408-6002RB is RoHS compliant. Both feature improved current ratings (1.75A versus 1A) and push-pull fastening instead of latch lock mechanisms.

TE Connectivity AMP-Latch Series:

The 499206-3, 5102321-3, 5499206-3, 5499923-3, and 5746443-3 from TE Connectivity maintain electrical and mechanical compatibility with identical 16-position, 2-row 2.54mm pitch specifications. These parts feature latch lock fastening consistent with the original design. Operating temperature extends to -65°C, providing enhanced low-temperature performance. RoHS compliance varies: 5102321-3, 5499923-3 are ROHS3 compliant; 5499206-3 and 5746443-3 are RoHS compliant; 499206-3 is RoHS non-compliant.

Amphenol ICC Quickie™ Series:

The 53611-G16-4LF, 53611-S16-4LF, and 71980-116LF from Amphenol ICC (FCI) provide functional equivalence with 16-position, 2-row 2.54mm pitch configuration. All three are RoHS compliant and active in production. Operating temperature and current rating specifications are not provided for the 53611 variants; 71980-116LF features kinked pin termination with press-fit and solder capability.

Compliance Considerations:

For applications requiring RoHS compliance, D3408-6002-AR (ROHS3), N3408-6002RB (RoHS), 5102321-3 (ROHS3), 5499206-3 (RoHS), 5499923-3 (ROHS3), 5746443-3 (RoHS), 53611-G16-4LF (RoHS), 53611-S16-4LF (RoHS), and 71980-116LF (RoHS) are suitable. The original 3408-6302-UG and TE Connectivity 499206-3 are RoHS non-compliant.

Frequently Asked Questions (FAQ)

Q: Can the 3M D3408-6002-AR directly replace the 3408-6302-UG?

A: The D3408-6002-AR maintains the same 16-position, 2-row 2.54mm pitch configuration, shrouded 4-wall design, through-hole solder termination, and operating temperature range. The primary difference is fastening type: D3408-6002-AR uses push-pull fastening versus the original latch lock mechanism. Electrical and mechanical interchangeability is confirmed for the connector interface. Verify mechanical clearance for the fastening mechanism in your application.

Q: What is the difference between latch lock and push-pull fastening types?

A: Latch lock fastening (3408-6302-UG, 499206-3, 5102321-3, 5499206-3, 5499923-3, 5746443-3, 53611-G16-4LF, 53611-S16-4LF, 71980-116LF) uses hooks or eject mechanisms for secure mating. Push-pull fastening (D3408-6002-AR, N3408-6002RB) relies on friction-fit engagement. Both provide equivalent electrical performance; selection depends on application requirements for mating force and disconnect mechanism.

Q: Are the Amphenol ICC Quickie™ series parts fully compatible with the original 3408-6302-UG?

A: The 53611-G16-4LF, 53611-S16-4LF, and 71980-116LF maintain the 16-position, 2-row 2.54mm pitch, shrouded 4-wall design, and through-hole solder termination. Operating temperature and current rating specifications are not provided for the 53611 variants. The 71980-116LF features kinked pin termination with press-fit and solder capability. Verify operating temperature requirements for your application before selection.

Q: What packaging options are available for these substitute parts?

A: Packaging varies across substitutes. The 3M D3408-6002-AR is supplied in trays; N3408-6002RB in bulk. TE Connectivity parts are available in trays (499206-3, 5102321-3, 5499206-3) or bulk (5499923-3, 5746443-3). Amphenol ICC parts are supplied in trays (53611-G16-4LF, 53611-S16-4LF) or tubes (71980-116LF). Packaging does not affect electrical or mechanical performance; selection depends on procurement and assembly requirements.

Q: Which substitute parts offer RoHS3 compliance?

A: D3408-6002-AR, 5102321-3, and 5499923-3 are ROHS3 compliant. These parts are recommended for applications requiring the highest level of RoHS compliance certification.

Q: Can I use a substitute part with a higher current rating than the original?

A: The D3408-6002-AR and N3408-6002RB offer 1.75A current rating versus the original 1A specification. Higher current rating capability does not require design modification; the connector can safely handle the original application current requirements. Verify that your circuit design does not exceed the original 1A specification unless the higher rating is intentionally utilized.

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