3M 3433-6202 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3433-6202 is a vertical rectangular connector header with 50 positions at 2.54mm pitch, designed for through-hole mounting with solder termination. This part 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 latch lock/eject hooks and gold-plated mating contacts suitable for board-to-board or cable applications.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	50
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Shrouding	Shrouded - 4 Wall
Contact Shape	Square
Operating Temperature Range	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0
Insulation Color	Black
Current Rating	1A
RoHS Status	Non-compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the 3M 3433-6202 is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

Connector type (Header), contact type (Male Pin), and mating interface (50 positions, 2 rows, 2.54mm pitch)
Mounting method (Through Hole) and termination (Solder)
Shrouding configuration (Shrouded - 4 Wall) and contact shape (Square)
Operating temperature range (-55°C ~ 105°C minimum)
Material flammability rating (UL94 V-0)
Moisture sensitivity level (1 - Unlimited)

Allowable Variations:

Fastening type (Latch Lock/Eject Hooks vs. Push-Pull)
Contact finish composition (Tin vs. Tin-Lead on posts; Gold on mating surfaces)
Contact material (Copper Alloy vs. Brass)
Insulation material (PBT vs. PCT, both glass-filled polyester)
Insulation color (Black vs. Gray)
Current rating (1A to 1.75A)
Operating temperature upper limit (105°C to 125°C)
RoHS compliance status (Non-compliant to Compliant)
Contact length specifications (minor variations within tolerance)

Substitute parts must maintain the same 50-position, 2-row, 2.54mm pitch configuration and through-hole solder termination to ensure mechanical and electrical compatibility with existing PCB designs.

Parameter Comparison

Parameter	3433-6202	N3433-6202RB	D3433-6002-AR	N3433-6002RB	09185506904	09185506912	09185506914	09185507904	09185507904800	09185507912	09185507914
Manufacturer	3M	3M	3M	3M	HARTING	HARTING	HARTING	HARTING	HARTING	HARTING	HARTING
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
Number of Positions	50	50	50	50	50	50	50	50	50	50	50
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	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
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
Contact Shape	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Not specified	Gold	Gold
Contact Finish - Post	Tin-Lead	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Not specified	Tin	Tin
Contact Material	Copper Alloy	Copper Alloy	Brass	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy
Insulation Material	PBT, Glass Filled	PCT, Glass Filled	PCT, Glass Filled	PCT, Glass Filled	PBT, Glass Filled	PBT, Glass Filled	PBT, Glass Filled	PBT, Glass Filled	PBT, Glass Filled	PBT, Glass Filled	PBT, Glass Filled
Insulation Color	Black	Black	Black	Black	Gray	Gray	Gray	Gray	Gray	Gray	Gray
Operating Temperature Range	-55°C ~ 105°C	-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
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
Current Rating	1A	1.75A	1.75A	1.75A	Not specified	Not specified	Not specified	Not specified	Not specified	Not specified	Not specified
RoHS Status	Non-compliant	Compliant	ROHS3 Compliant	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)
Fastening Type	Latch Lock/Eject Hooks, Short	Latch Lock/Eject Hooks, Short	Push-Pull	Push-Pull	Latch Lock/Eject Hooks, Long	Latch Lock/Eject Hooks, Short	Latch Lock/Eject Hooks, Short	Latch Lock/Eject Hooks, Long	Latch Lock/Eject Hooks, Long	Latch Lock/Eject Hooks, Short	Latch Lock/Eject Hooks, Short

Engineering Selection Recommendations

3M Direct Substitutes (Same Series, Active Status):

N3433-6202RB and N3433-6002RB are active 3M parts within the 3000/N3433 series. Both maintain full electrical and mechanical compatibility with the obsolete 3433-6202. N3433-6202RB offers identical fastening (Latch Lock/Eject Hooks, Short) with improved current rating (1.75A) and RoHS compliance. N3433-6002RB uses Push-Pull fastening with equivalent performance characteristics. Both are supplied in bulk packaging.

D3433-6002-AR represents the manufacturer-recommended upgrade path, classified as ROHS3 Compliant and belonging to the D3000 series. This part features Push-Pull fastening and brass contact material, with enhanced current capacity (1.75A) and superior temperature performance (-55°C ~ 105°C). Supplied in tray packaging.

HARTING SEK Series Alternatives:

HARTING 09185506904, 09185506912, 09185506914, 09185507904, 09185507904800, 09185507912, and 09185507914 provide cross-manufacturer substitution within the SEK series. All maintain the 50-position, 2-row, 2.54mm pitch configuration with through-hole solder termination and shrouded 4-wall construction. These parts feature extended operating temperature range (-55°C ~ 125°C) and ROHS3 compliance. Variations exist in fastening type (Latch Lock/Eject Hooks with Long or Short configuration) and contact post length. HARTING parts are supplied in bulk or tray packaging.

Compliance Considerations:

The original 3433-6202 is RoHS non-compliant. All substitute parts listed are either RoHS Compliant or ROHS3 Compliant, supporting modern regulatory requirements. Designs requiring RoHS non-compliant components must specify the original part or equivalent non-compliant variants if available through inventory channels.

Frequently Asked Questions (FAQ)

Q: Can N3433-6202RB directly replace 3433-6202 in existing designs?

A: Yes. N3433-6202RB maintains identical 50-position, 2-row, 2.54mm pitch configuration, through-hole mounting, solder termination, and shrouded 4-wall construction. The fastening mechanism (Latch Lock/Eject Hooks, Short) is identical. Higher current rating (1.75A vs. 1A) and RoHS compliance represent improvements without compatibility impact.

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

A: Fastening type affects mating interface engagement depth and release mechanism. Short hooks provide standard engagement; Long hooks extend engagement depth. Both maintain the same 50-position, 2-row, 2.54mm pitch electrical interface. Mechanical compatibility depends on mating connector design.

Q: Are HARTING SEK series parts electrically equivalent to 3M parts?

A: Yes, within the specified parameters. All HARTING SEK series parts maintain 50 positions, 2 rows, 2.54mm pitch, through-hole solder termination, and shrouded 4-wall construction. Electrical performance is equivalent. Mechanical variations include fastening type and contact post length, which do not affect electrical function but may impact physical fit in specific applications.

Q: Does insulation material change (PBT to PCT) affect compatibility?

A: No. Both PBT and PCT are glass-filled polyester materials meeting UL94 V-0 flammability requirements. Both support the same operating temperature range (-55°C ~ 105°C minimum). Material substitution does not affect electrical or mechanical compatibility.

Q: Why do some HARTING parts show gray insulation instead of black?

A: Insulation color is a cosmetic variation without functional impact. Both black and gray insulation materials meet identical electrical, thermal, and flammability specifications. Color selection is determined by manufacturer design and does not affect compatibility.

Q: What packaging options are available?

A: Substitute parts are supplied in Bulk or Tray packaging. Bulk packaging is standard for high-volume applications. Tray packaging provides organized component presentation for automated assembly processes. Packaging selection does not affect electrical or mechanical performance.

Q: Is the higher current rating (1.75A) of substitute parts a concern?

A: No. Higher current rating indicates improved performance capability. Designs rated for 1A operation remain fully compatible with 1.75A-rated substitutes. The higher rating provides additional margin and does not introduce compatibility issues.

Q: Are all substitute parts ROHS3 compliant?

A: All listed substitute parts are either RoHS Compliant or ROHS3 Compliant. The original 3433-6202 is RoHS non-compliant. Designs requiring RoHS compliance must transition to compliant substitutes. Designs with existing RoHS non-compliant specifications may continue using the original part if available through inventory.

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