3M 3408-5302 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3408-5302 is a through-hole, right-angle rectangular connector header with 16 positions at 0.100" (2.54mm) pitch. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The connector features shrouded 4-wall construction with solder termination and latch lock/eject hook fastening, suitable for board-to-board or cable applications in industrial and commercial electronics.

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)
Mounting Type	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall
Termination	Solder
Contact Finish - Mating	Gold
Contact Finish - Post	Tin-Lead or Tin
Operating Temperature Range	-55°C ~ 105°C (3M); -55°C ~ 125°C (HARTING)
Material Flammability Rating	UL94 V-0
Current Rating	1.75A
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following critical parameters:

Connector Type & Contact Configuration: Header with male pins, 16 positions in 2 rows
Pitch Specification: 0.100" (2.54mm) mating pitch and row spacing
Mounting & Orientation: Through-hole, right-angle mounting
Shrouding & Fastening: Shrouded 4-wall construction with latch lock/eject hooks or push-pull fastening
Termination Method: Solder termination
Contact Finish: Gold mating surface with tin or tin-lead post finish
Electrical Performance: 1.75A current rating, UL94 V-0 flammability compliance
Environmental Compliance: RoHS status and moisture sensitivity level

Substitute parts are grouped into two categories:

Category A - Direct 3M Equivalents (Active Status)

N3408-5302RB: Active product with identical electrical and mechanical specifications; differs only in packaging (tray) and RoHS compliance status
N3408-5002RB: Active product with push-pull fastening instead of latch lock/eject hooks; otherwise electrically and mechanically compatible
D3408-5002-AR: Active product from 3M D3000 series with push-pull fastening; differs in contact material (brass vs. copper alloy) and contact finish thickness specifications

Category B - HARTING SEK Series Equivalents (Active Status)

09185165901, 09185165911, 09185165913: HARTING SEK series headers with latch lock/eject hook fastening; compatible with board-to-cable/wire applications
09185166901, 09185166903, 09185166911, 09185166913: HARTING SEK series headers with latch lock/eject hook fastening; compatible with board-to-cable/wire applications

All substitute parts maintain the 16-position, 2-row configuration at 0.100" pitch with shrouded 4-wall construction and solder termination.

Parameter Comparison

Part Number	Manufacturer	Series	Product Status	Positions	Pitch (mm)	Mounting	Fastening Type	Contact Material	Insulation Material	Operating Temp (°C)	RoHS Status	Packaging
3408-5302	3M	3000	Obsolete	16 (2x8)	2.54	Through Hole, R/A	Latch Lock/Eject Hooks, Long	Copper Alloy	PCT, Polyester, Glass Filled	-55 ~ 105	Non-compliant	Bulk
N3408-5302RB	3M	3000	Active	16 (2x8)	2.54	Through Hole, R/A	Latch Lock/Eject Hooks, Long	Copper Alloy	PCT, Polyester, Glass Filled	-55 ~ 105	Compliant	Tray
D3408-5002-AR	3M	D3000	Active	16 (2x8)	2.54	Through Hole, R/A	Push-Pull	Brass	PCT, Polyester, Glass Filled	-55 ~ 105	Compliant	Tray
N3408-5002RB	3M	3000	Active	16 (2x8)	2.54	Through Hole, R/A	Push-Pull	Copper Alloy	PCT, Polyester, Glass Filled	-55 ~ 105	Compliant	Bulk
09185165901	HARTING	SEK	Active	16 (2x8)	2.54	Through Hole, R/A	Latch Lock/Eject Hooks, Long	Copper Alloy	PBT, Glass Filled	-55 ~ 125	ROHS3 Compliant	Bulk
09185165911	HARTING	SEK	Active	16 (2x8)	2.54	Through Hole, R/A	Latch Lock/Eject Hooks, Short	Copper Alloy	PBT, Glass Filled	-55 ~ 125	ROHS3 Compliant	Bulk
09185165913	HARTING	SEK	Active	16 (2x8)	2.54	Through Hole, R/A	Latch Lock/Eject Hooks, Short	Copper Alloy	PBT, Glass Filled	-55 ~ 125	ROHS3 Compliant	Bulk
09185166901	HARTING	SEK	Active	16 (2x8)	2.54	Through Hole, R/A	Latch Lock/Eject Hooks, Long	Copper Alloy	PBT, Glass Filled	-55 ~ 125	ROHS3 Compliant	Bulk
09185166903	HARTING	SEK	Active	16 (2x8)	2.54	Through Hole, R/A	Latch Lock/Eject Hooks, Long	Copper Alloy	PBT, Glass Filled	-55 ~ 125	ROHS3 Compliant	Tray
09185166911	HARTING	SEK	Active	16 (2x8)	2.54	Through Hole, R/A	Latch Lock/Eject Hooks, Short	Copper Alloy	PBT, Glass Filled	-55 ~ 125	ROHS3 Compliant	Bulk
09185166913	HARTING	SEK	Active	16 (2x8)	2.54	Through Hole, R/A	Latch Lock/Eject Hooks, Short	Copper Alloy	PBT, Glass Filled	-55 ~ 125	ROHS3 Compliant	Tray

Engineering Selection Recommendations

For Direct Replacement (Identical Fastening)

N3408-5302RB is the primary active equivalent to the obsolete 3408-5302. Both employ latch lock/eject hook fastening with long engagement. N3408-5302RB is RoHS compliant and available in tray packaging, addressing the compliance gap of the original part while maintaining electrical and mechanical compatibility.

For Push-Pull Fastening Applications

N3408-5002RB and D3408-5002-AR provide active alternatives with push-pull fastening instead of latch lock/eject hooks. These parts are suitable for applications where push-pull engagement is preferred or required. Both are RoHS compliant. D3408-5002-AR uses brass contacts instead of copper alloy and operates within the same temperature range.

For Extended Temperature Range Applications

HARTING SEK series parts (09185165901, 09185165911, 09185165913, 09185166901, 09185166903, 09185166911, 09185166913) operate across -55°C to 125°C, providing 20°C additional upper temperature margin compared to 3M parts. These parts are ROHS3 compliant and feature polybutylene terephthalate (PBT) insulation material. Fastening options include both long and short latch lock/eject hooks.

For Packaging Considerations

Tray packaging is available in N3408-5302RB, D3408-5002-AR, 09185166903, and 09185166913. Bulk packaging is available in all other substitute parts. Packaging selection depends on production volume and handling requirements.

Frequently Asked Questions (FAQ)

Q: Can N3408-5302RB directly replace the obsolete 3408-5302?

A: Yes. N3408-5302RB maintains identical electrical and mechanical specifications including 16-position configuration, 0.100" pitch, through-hole right-angle mounting, shrouded 4-wall construction, latch lock/eject hook fastening, and 1.75A current rating. The primary differences are active product status and RoHS compliance.

Q: What is the difference between latch lock/eject hooks and push-pull fastening?

A: Latch lock/eject hook fastening (3408-5302, N3408-5302RB, HARTING SEK series) uses mechanical hooks for secure mating and requires deliberate unlatching for separation. Push-pull fastening (N3408-5002RB, D3408-5002-AR) uses a pull-to-disconnect mechanism. Selection depends on application requirements for mating security and ease of disconnection.

Q: Are HARTING SEK series parts compatible with 3M connector housings?

A: HARTING SEK series parts maintain the same 0.100" (2.54mm) pitch, 16-position configuration, and shrouded 4-wall construction as the 3M parts. Mechanical compatibility depends on specific housing design. Verify connector housing specifications before substitution.

Q: What is the significance of the extended temperature range in HARTING parts?

A: HARTING SEK series parts operate to 125°C versus 105°C for 3M parts. This 20°C margin provides additional thermal headroom for applications in elevated ambient or high-power environments. Selection should be based on actual application temperature requirements.

Q: Does RoHS compliance affect electrical performance?

A: RoHS compliance addresses material composition (elimination of lead, cadmium, hexavalent chromium, and other restricted substances) but does not alter electrical performance. Both RoHS-compliant and non-compliant parts in this comparison maintain identical current ratings, voltage specifications, and contact finishes.

Q: What is the difference between contact finish thickness specifications?

A: Contact finish thickness (measured in microinches or micrometers) affects contact durability and wear resistance. The 3M 3408-5302 specifies 30.0µin (0.76µm) gold mating finish and 200.0µin (5.08µm) tin-lead post finish. Equivalent parts maintain these specifications or provide equivalent durability through alternative material compositions.

Q: Can parts with different insulation materials be interchanged?

A: The 3M parts use polycyclohexylenedimethylene terephthalate (PCT) with polyester and glass fill, while HARTING SEK series uses polybutylene terephthalate (PBT) with glass fill. Both materials meet UL94 V-0 flammability requirements and provide equivalent mechanical and electrical insulation properties. Interchangeability depends on specific application environmental exposure and mechanical stress requirements.

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