3M 3433-6003 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3433-6003 is a through-hole rectangular connector header with 50 positions arranged in 2 rows at 0.100" (2.54mm) pitch. This connector features shrouded 4-wall construction with gold-plated mating contacts and tin-lead post finish. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	3433-6003
Manufacturer	3M
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
Termination	Solder
Fastening Type	Push-Pull
Operating Temperature	-55°C ~ 105°C
Current Rating	1A
Material Flammability Rating	UL94 V-0
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution for the 3M 3433-6003 is determined by the following critical parameters:

Connector Configuration: 50 positions, 2 rows, 0.100" (2.54mm) pitch and row spacing
Mounting Style: Through-hole vertical orientation with shrouded 4-wall construction
Contact System: Male pin headers with push-pull fastening
Electrical Performance: 1A minimum current rating, gold mating contact finish
Environmental Compliance: UL94 V-0 flammability rating, operating temperature range -55°C to 105°C

Substitute parts are grouped into two categories:

Category 1: Direct Functional Equivalents (3M Series) Parts N3433-6003RB, D3433-6002-AR, and N3433-6002RB maintain the same 50-position, 2-row configuration with identical pitch specifications. These parts are active products with improved RoHS compliance and higher current ratings (1.75A).

Category 2: Cross-Manufacturer Equivalents (TE Connectivity AMP-Latch Series) Parts 1-5102154-0, 1-5102153-0, 1-102154-0, and 1-499923-0 provide functional equivalence through the AMP-Latch connector family. These maintain the 50-position, 2-row configuration with identical pitch and through-hole mounting, though with different insulation heights and contact materials.

Category 3: Non-Equivalent Alternatives Parts 09185506923 (HARTING, right-angle mounting), 09185605902 (HARTING, 60 positions), and 09232326825 (HARTING, DIN 41612 receptacle) do not meet the core substitution criteria due to different mounting orientations, position counts, or connector types.

Parameter Comparison

Parameter	3433-6003	N3433-6003RB	D3433-6002-AR	N3433-6002RB	1-5102154-0	1-5102153-0	1-102154-0	1-499923-0
Manufacturer	3M	3M	3M	3M	TE Connectivity	TE Connectivity	TE Connectivity	TE Connectivity
Number of Positions	50	50	50	50	50	50	50	50
Number of Rows	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)
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)
Mounting Type	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
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Latch Lock/Eject Hooks, Long
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)
Contact Length - Post	0.155" (3.94mm)	0.155" (3.94mm)	0.112" (2.84mm)	0.112" (2.84mm)	0.110" (2.79mm)	0.110" (2.79mm)	0.110" (2.79mm)	0.155" (3.94mm)
Insulation Height	0.680" (17.27mm)	0.680" (17.27mm)	0.680" (17.27mm)	0.680" (17.27mm)	0.549" (13.94mm)	0.549" (13.94mm)	0.549" (13.94mm)	0.549" (13.94mm)
Contact Shape	Square	Square	Square	Square	Square	Square	Square	Square
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold or Gold-Palladium	Gold or Gold-Palladium	Gold or Gold-Palladium	Gold or Gold-Palladium
Contact Finish - Post	Tin-Lead	Tin	Tin	Tin	Tin	Tin	Tin-Lead	Tin-Lead
Contact Material	Copper Alloy	Copper Alloy	Brass	Copper Alloy	—	—	Phosphor Bronze	—
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-65°C ~ 105°C	-55°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 105°C
Current Rating	1A	1.75A	1.75A	1.75A	1A per Contact	1A per Contact	1A per Contact	1A per Contact
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
RoHS Status	RoHS non-compliant	RoHS Compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant	Not applicable
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Primary Recommendation: N3433-6003RB (3M)

N3433-6003RB is the direct successor to 3433-6003 within the 3M product line. It maintains identical mechanical and electrical specifications while offering RoHS compliance and improved current rating (1.75A). The part is active and available in bulk packaging with 1119 units in stock.

Secondary Recommendation: D3433-6002-AR (3M)

D3433-6002-AR provides functional equivalence with ROHS3 compliance. The primary difference is reduced contact post length (0.112" versus 0.155"), which may require PCB layout verification. Current rating is 1.75A. This part is available in tray packaging with 1244 units in stock.

Tertiary Recommendation: N3433-6002RB (3M)

N3433-6002RB offers RoHS compliance and 1.75A current rating. Like D3433-6002-AR, it features reduced contact post length (0.112"). This part is available in bulk packaging with 1315 units in stock.

Cross-Manufacturer Alternative: 1-5102154-0 (TE Connectivity AMP-Latch)

1-5102154-0 provides functional equivalence through the TE Connectivity AMP-Latch series. Key differences include reduced insulation height (0.549" versus 0.680"), which may affect board-to-board spacing. The part is ROHS3 compliant and available in bulk with 1375 units in stock. Operating temperature extends to -65°C.

Cross-Manufacturer Alternative: 1-5102153-0 (TE Connectivity AMP-Latch)

1-5102153-0 is similar to 1-5102154-0 with ROHS3 compliance and extended temperature range (-55°C to 105°C). It features reduced insulation height and is available in bulk with 1678 units in stock.

Not Recommended for Direct Substitution:

09185506923 (HARTING): Right-angle mounting orientation differs from vertical requirement
09185605902 (HARTING): 60-position configuration exceeds 50-position specification
09232326825 (HARTING): DIN 41612 receptacle type incompatible with header requirement
1-102154-0: RoHS non-compliant; consider only if legacy compliance acceptable
1-499923-0: Fastening type (Latch Lock/Eject Hooks) differs from push-pull specification

Frequently Asked Questions (FAQ)

Q: Can N3433-6003RB be used as a direct drop-in replacement for 3433-6003?

A: Yes. N3433-6003RB maintains identical pitch (0.100"), position count (50), row configuration (2), mounting type (through-hole vertical), and contact length specifications. The primary advantage is RoHS compliance and higher current rating (1.75A versus 1A).

Q: What is the impact of reduced contact post length in D3433-6002-AR and N3433-6002RB?

A: Contact post length is reduced from 0.155" to 0.112". This affects solder joint depth and may require PCB design verification. Verify that PCB pad thickness and solder volume accommodate the shorter post length without compromising joint integrity.

Q: Why is insulation height different in TE Connectivity parts?

A: TE Connectivity AMP-Latch series uses 0.549" insulation height compared to 3M's 0.680". This affects board-to-board spacing and connector stacking height. Verify mechanical clearance in your application before substitution.

Q: Are TE Connectivity parts mechanically compatible with 3M receptacles?

A: Pitch and contact configuration are identical (0.100", 50 positions, 2 rows), ensuring mating compatibility. However, reduced insulation height may affect overall assembly dimensions. Verify mechanical fit in your specific application.

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

A: Push-pull fastening (3433-6003, N3433-6003RB, D3433-6002-AR, N3433-6002RB, TE Connectivity parts except 1-499923-0) provides simple insertion and removal. Latch lock/eject hooks (1-499923-0) provide positive mechanical retention. These are not interchangeable without receptacle redesign.

Q: Can I use 1-499923-0 as a substitute?

A: 1-499923-0 is not recommended as a direct substitute due to different fastening type (latch lock versus push-pull). Receptacle compatibility requires matching fastening mechanisms. Use only if your application specifically requires latch lock retention.

Q: What packaging options are available?

A: 3M parts are available in bulk (N3433-6003RB, N3433-6002RB) or tray (D3433-6002-AR). TE Connectivity parts are available in bulk (1-5102154-0, 1-5102153-0) or tray (1-102154-0, 1-499923-0). Select based on your procurement and assembly requirements.

Q: Are all substitute parts RoHS compliant?

A: N3433-6003RB, D3433-6002-AR, and N3433-6002RB are RoHS or ROHS3 compliant. TE Connectivity parts 1-5102154-0 and 1-5102153-0 are ROHS3 compliant. Parts 3433-6003 and 1-102154-0 are RoHS non-compliant. Part 1-499923-0 has not applicable RoHS status.

Q: What is the current rating difference, and does it matter?

A: Original 3433-6003 is rated 1A per contact. Substitute parts N3433-6003RB, D3433-6002-AR, and N3433-6002RB are rated 1.75A per contact. TE Connectivity parts maintain 1A per contact rating. Higher current rating provides design margin but does not require circuit modification if original design operated within 1A limits.

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