3M 3408-5202 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3408-5202 is a through-hole, right-angle rectangular connector header with 16 positions at 2.54mm pitch. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The connector features shrouded 4-wall design with solder termination and is suitable for board-to-board or cable interconnection 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
Operating Temperature Range	-55°C ~ 105°C
Current Rating	1.75A
Material Flammability Rating	UL94 V-0
Contact Finish - Mating	Gold
Contact Finish - Post	Tin-Lead
Contact Material	Copper Alloy
Insulation Material	Polybutylene Terephthalate (PBT), Glass Filled
RoHS Status	RoHS non-compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the 3M 3408-5202 is determined by the following critical parameters:

Connector type (Header), contact type (Male Pin), and mating pitch (0.100" / 2.54mm)
Number of positions (16) and row configuration (2 rows)
Mounting style (Through Hole, Right Angle) and shrouding (Shrouded - 4 Wall)
Termination method (Solder)
Operating temperature range compatibility
Contact finish specifications (Gold mating surface, Tin or Tin-Lead post finish)
Current rating (1.75A minimum)
Material flammability rating (UL94 V-0)

Substitute parts are grouped into two categories: 3M manufacturer alternatives and HARTING manufacturer alternatives. All listed substitutes maintain electrical and mechanical compatibility with the original part specification while offering improved compliance status or enhanced availability.

Parameter Comparison

Parameter	3408-5202	D3408-5002-AR	N3408-5002RB	09185165901	09185165911	09185165913	09185166901	09185166903	09185166911	09185167901	09185167903
Manufacturer	3M	3M	3M	HARTING	HARTING	HARTING	HARTING	HARTING	HARTING	HARTING	HARTING
Series	3000	D3000	3000	SEK	SEK	SEK	SEK	SEK	SEK	SEK	SEK
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
Connector Type	Header	Header	Header	Header	Header	Header	Header	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	16	16	16	16	16	16	16	16	16	16	16
Number of Rows	2	2	2	2	2	2	2	2	2	2	2
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	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)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	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	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Contact Length - Mating	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	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)	0.177" (4.50mm)	0.177" (4.50mm)	0.114" (2.90mm)	0.177" (4.50mm)	0.114" (2.90mm)	0.177" (4.50mm)	0.177" (4.50mm)	0.114" (2.90mm)
Insulation Height	0.340" (8.64mm)	0.340" (8.64mm)	0.340" (8.64mm)	0.335" (8.51mm)	0.335" (8.51mm)	0.335" (8.51mm)	0.335" (8.51mm)	0.335" (8.51mm)	0.335" (8.51mm)	0.335" (8.51mm)	0.335" (8.51mm)
Contact Shape	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Contact Finish - Post	Tin-Lead	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin
Contact Material	Copper Alloy	Brass	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy
Insulation Material	PBT, Glass Filled	PCT, Polyester, Glass Filled	PCT, Polyester, Glass Filled	PBT, Glass Filled	PBT, Glass Filled	PBT, Glass Filled	PBT, Glass Filled	PBT, Glass Filled	PBT, Glass Filled	PBT, Glass Filled	PBT, Glass Filled
Operating Temperature Range	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Current Rating	1.75A	1.75A	1.75A	Not specified	Not specified	Not specified	Not specified	Not specified	Not specified	Not specified	Not specified
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	RoHS non-compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Packaging	Not specified	Tray	Bulk	Bulk	Bulk	Bulk	Bulk	Tray	Bulk	Bulk	Bulk

Engineering Selection Recommendations

The 3M 3408-5202 is obsolete and requires substitution for new production. Selection among available alternatives depends on regulatory and compliance requirements:

For applications requiring RoHS compliance, the 3M D3408-5002-AR or N3408-5002RB are direct 3M alternatives with active product status. Both maintain the original operating temperature range of -55°C to 105°C and 1.75A current rating. The D3408-5002-AR uses PCT/Polyester insulation material and Brass contacts, while N3408-5002RB retains Copper Alloy contacts with PCT/Polyester insulation. Both are RoHS compliant.

For applications requiring ROHS3 compliance with extended operating temperature range (-55°C to 125°C), HARTING SEK series connectors (09185165901, 09185165911, 09185165913, 09185166901, 09185166903, 09185166911, 09185167901, 09185167903) provide functional equivalence. These parts differ in contact post length and fastening type specifications. HARTING alternatives maintain PBT glass-filled insulation and Copper Alloy contacts with Tin post finish.

All substitute parts maintain the critical electrical and mechanical parameters: 16-position, 2-row configuration at 2.54mm pitch, through-hole right-angle mounting, shrouded 4-wall design, solder termination, and UL94 V-0 flammability rating.

Frequently Asked Questions (FAQ)

Q: Can I directly replace 3M 3408-5202 with any of the listed substitutes?

A: Yes, all listed substitutes maintain electrical and mechanical compatibility with the original part. The 16-position, 2-row configuration at 2.54mm pitch, through-hole right-angle mounting, and solder termination are identical across all alternatives. Differences in contact post length and fastening type do not affect mating compatibility.

Q: What is the difference between 3M D3408-5002-AR and N3408-5002RB?

A: Both are 3M alternatives with active product status and RoHS compliance. D3408-5002-AR uses Brass contacts with PCT/Polyester insulation and is packaged in Trays. N3408-5002RB uses Copper Alloy contacts with PCT/Polyester insulation and is packaged in Bulk. Both maintain the same electrical specifications and operating temperature range.

Q: Why do HARTING parts have different operating temperature ranges?

A: HARTING SEK series connectors are rated for -55°C to 125°C, compared to the original -55°C to 105°C. This extended range provides additional thermal margin for demanding applications. The higher temperature capability does not affect compatibility in applications operating within the original temperature range.

Q: What is the significance of contact post length variations in HARTING parts?

A: HARTING alternatives offer two contact post lengths: 0.177" (4.50mm) and 0.114" (2.90mm). The original 3408-5202 has 0.112" (2.84mm) posts. Post length affects PCB insertion depth and mechanical engagement. Selection depends on specific PCB design requirements. All lengths are compatible with standard 2.54mm pitch mating connectors.

Q: Are there packaging differences I should consider?

A: Yes. 3M D3408-5002-AR and HARTING 09185166903 are supplied in Trays. All other alternatives are supplied in Bulk packaging. Tray packaging provides better component protection during handling and storage. Bulk packaging is suitable for high-volume assembly operations.

Q: What is the difference between Latch Lock/Eject Hooks (Short) and (Long)?

A: HARTING parts use either short or long latch hook configurations. This affects the mechanical engagement force and retention characteristics. Both configurations maintain electrical compatibility. Selection depends on application-specific mechanical requirements and mating connector specifications.

Q: Is the Tin-Lead post finish of the original part critical?

A: The original 3408-5202 uses Tin-Lead post finish. All substitutes use Tin post finish. Tin provides equivalent solderability and electrical performance. This change aligns with RoHS compliance requirements that restrict lead content in new components.

Q: Can I mix substitute parts from different manufacturers in the same assembly?

A: All listed substitutes are mechanically and electrically compatible. However, for consistency in manufacturing processes, supply chain management, and quality control, it is recommended to standardize on a single part number per assembly design.

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