3M 3627-5203 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3627-5203 is a through-hole, right-angle rectangular connector header with 24 positions arranged in 2 rows at 0.100" (2.54mm) pitch. This connector features shrouded 4-wall construction with latch lock/eject hooks and is designed for board-to-cable/wire 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	24
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	-55°C ~ 105°C
Current Rating	1.75A
Material Flammability Rating	UL94 V-0
Insulation Color	Black

Substitute Part Grouping Explanation

Substitution eligibility for the 3M 3627-5203 is determined by the following critical parameters:

Connector type (Header), contact type (Male Pin), and mating pitch (0.100" / 2.54mm)
Number of positions (24) and row configuration (2 rows)
Row spacing (0.100" / 2.54mm)
Mounting style (Through Hole, Right Angle)
Shrouding configuration (Shrouded - 4 Wall)
Termination method (Solder)
Operating temperature range (-55°C ~ 105°C minimum)
Current rating (1.75A minimum)
Material flammability rating (UL94 V-0)

The following parts meet these substitution criteria:

3M N3627-5203RB - Direct equivalent with identical electrical and mechanical specifications. Active product status with RoHS compliance.

3M N3627-5002RB - Compatible substitute with modified fastening type (Push-Pull vs. Latch Lock) and contact post length (0.112" vs. 0.155"). Maintains all critical mating parameters and electrical ratings.

3M D3627-5002-AR - Compatible substitute from the D3000 series with modified fastening type (Push-Pull) and contact material (Brass vs. Copper Alloy). Contact post length differs (0.112" vs. 0.155"). Maintains all critical mating parameters and electrical ratings.

TE Connectivity 102161-5 - Cross-manufacturer substitute from AMP-Latch series. Maintains critical mating parameters and electrical ratings. Operating temperature range extends to -65°C. Current rating specified as 1A per contact with 250VAC voltage rating. Insulation height differs (0.315" vs. 0.340").

Parameter Comparison

Parameter	3627-5203	N3627-5203RB	N3627-5002RB	D3627-5002-AR	102161-5
Manufacturer	3M	3M	3M	3M	TE Connectivity
Product Status	Obsolete	Active	Active	Active	Active
Series	3000	3000	3000	D3000	AMP-Latch
Number of Positions	24	24	24	24	24
Number of Rows	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)
Row Spacing - Mating	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
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Fastening Type	Latch Lock/Eject Hooks, Short	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)	0.240" (6.10mm)
Contact Length - Post	0.155" (3.94mm)	0.155" (3.94mm)	0.112" (2.84mm)	0.112" (2.84mm)	0.155" (3.94mm)
Insulation Height	0.340" (8.64mm)	0.340" (8.64mm)	0.340" (8.64mm)	0.340" (8.64mm)	0.315" (8.00mm)
Contact Shape	Square	Square	Square	Square	Square
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold or Gold-Palladium
Contact Finish - Post	Tin-Lead	Tin	Tin	Tin	Tin-Lead
Contact Material	Copper Alloy	Copper Alloy	Copper Alloy	Brass	Brass
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-65°C ~ 105°C
Current Rating	1.75A	1.75A	1.75A	1.75A	1A per Contact
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	Non-compliant	Compliant	Compliant	Compliant	Non-compliant

Engineering Selection Recommendations

3M N3627-5203RB is the primary substitute for the obsolete 3627-5203. This part provides identical electrical and mechanical specifications with the advantage of active product status and RoHS compliance. The only difference is the post finish material (Tin vs. Tin-Lead), which does not affect functional compatibility.

3M N3627-5002RB and 3M D3627-5002-AR are compatible alternatives when fastening mechanism differences are acceptable. Both parts feature Push-Pull fastening instead of Latch Lock/Eject Hooks and have shorter contact post lengths (0.112" vs. 0.155"). These modifications do not affect mating interface compatibility but may require PCB layout adjustments for post insertion depth. Both are RoHS compliant and active products.

TE Connectivity 102161-5 is a cross-manufacturer option from the AMP-Latch series. This part maintains all critical mating parameters and offers an extended operating temperature range (-65°C vs. -55°C minimum). The current rating is specified as 1A per contact, which is lower than the 1.75A rating of the 3M parts. The insulation height is 0.315" compared to 0.340", representing a 0.025" reduction. This part is RoHS non-compliant.

For new designs, N3627-5203RB is recommended due to active status, RoHS compliance, and specification equivalence. For legacy system maintenance where the original fastening mechanism is critical, N3627-5203RB remains the optimal choice. Alternative parts should be selected only when specific design constraints require their unique characteristics.

Frequently Asked Questions (FAQ)

Q: Can N3627-5203RB be used as a direct replacement for the obsolete 3627-5203?

A: Yes. N3627-5203RB is functionally equivalent with identical mating pitch (0.100" / 2.54mm), position count (24), row configuration (2 rows), mounting style (Through Hole, Right Angle), shrouding (Shrouded - 4 Wall), and electrical ratings (1.75A, -55°C ~ 105°C). The only difference is the post finish material (Tin vs. Tin-Lead), which does not affect connector performance.

Q: What are the key differences between N3627-5203RB and N3627-5002RB?

A: Both parts share the same mating pitch, position count, and row configuration. The primary differences are: (1) Fastening type changes from Latch Lock/Eject Hooks to Push-Pull, and (2) Contact post length reduces from 0.155" to 0.112". These changes do not affect mating interface compatibility but may require PCB design modifications for post insertion depth.

Q: Is the TE Connectivity 102161-5 a suitable substitute?

A: The 102161-5 maintains all critical mating parameters (pitch, position count, row spacing, mounting style, shrouding) and meets the same flammability rating. However, the current rating is specified as 1A per contact compared to 1.75A for the 3M parts, and the insulation height is 0.315" versus 0.340". Selection depends on whether the lower current rating and reduced insulation height are acceptable for the application.

Q: What is the impact of changing from Latch Lock/Eject Hooks to Push-Pull fastening?

A: The fastening mechanism affects connector engagement and disengagement method but does not alter mating interface compatibility. Latch Lock/Eject Hooks provide positive locking with manual release, while Push-Pull fastening uses friction-based engagement. PCB layout and mechanical clearance may require adjustment to accommodate the different fastening geometry.

Q: Are all substitute parts RoHS compliant?

A: No. The original 3627-5203 and TE Connectivity 102161-5 are RoHS non-compliant. The 3M alternatives N3627-5203RB, N3627-5002RB, and D3627-5002-AR are all RoHS compliant, making them suitable for applications with RoHS requirements.

Q: What packaging options are available for these parts?

A: The 3627-5203 original packaging is not specified. N3627-5203RB and N3627-5002RB are supplied in Bulk packaging. D3627-5002-AR is supplied in Tray packaging. 102161-5 is supplied in Bulk packaging. Packaging selection may affect procurement and handling procedures.

Q: Can these connectors be used in applications requiring extended temperature ranges?

A: The 3M parts (3627-5203, N3627-5203RB, N3627-5002RB, D3627-5002-AR) operate from -55°C to 105°C. The TE Connectivity 102161-5 extends the lower temperature limit to -65°C, providing a 10°C advantage for cold environment applications.

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