3M 3433-1002 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3433-1002 is a through-hole, right-angle rectangular connector header with 50 positions at 2.54mm pitch. This connector is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part features shrouded 3-wall construction, male pin contacts with gold mating finish, and solder termination suitable for board-to-board or cable applications. Identifying compatible substitutes ensures design flexibility while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	50
Number of Rows	2
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle
Termination	Solder
Shrouding	Shrouded - 3 Wall
Contact Finish - Mating	Gold
Operating Temperature	-55°C ~ 105°C
Current Rating	1.75A
Material Flammability Rating	UL94 V-0
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the 3433-1002 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

Connector type: Header
Contact type: Male Pin
Pitch - mating: 0.100" (2.54mm)
Number of positions: 50
Number of rows: 2
Row spacing - mating: 0.100" (2.54mm)
Mounting type: Through Hole, Right Angle
Termination: Solder
Contact finish - mating: Gold
Operating temperature range: -55°C ~ 105°C
Material flammability rating: UL94 V-0

Allowable Variations:

Shrouding configuration: 3-wall or 4-wall acceptable
Contact material: Copper Alloy, Brass, or Phosphor Bronze Alloy
Insulation material: PCT or Polyester, Glass Filled
Fastening type: Push-Pull or Latch Lock/Eject Hooks
Contact length - post: Variations permitted within functional range
Insulation height: Minor variations acceptable
Packaging: Bulk, Tray, or alternative formats
RoHS compliance status: Both compliant and non-compliant parts listed

Substitutes are grouped by manufacturer and series while maintaining all critical electrical and mechanical compatibility parameters.

Parameter Comparison

Parameter	3433-1002	D3433-5002-AR	N3433-5002RB	1-102160-0	65823-043	65823-043LF	65823-045LF	65823-047LF	65823-091LF
Manufacturer	3M	3M	3M	TE Connectivity	Amphenol ICC	Amphenol ICC	Amphenol ICC	Amphenol ICC	Amphenol ICC
Connector Type	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
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)
Number of Positions	50	50	50	50	50	50	50	50	50
Number of Rows	2	2	2	2	2	2	2	2	2
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)
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
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Shrouding	Shrouded - 3 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 Finish - Mating	Gold	Gold	Gold	Gold or Gold-Palladium	Gold or Gold, GXT™	Gold or Gold, GXT™	Gold or Gold, GXT™	Gold or Gold, GXT™	Gold or Gold, GXT™
Contact Finish Thickness - Mating	30.0µin (0.76µm)	10.0µin (0.25µm)	30.0µin (0.76µm)	30.0µin (0.76µm)	30.0µin (0.76µm)	30.0µin (0.76µm)	30.0µin (0.76µm)	30.0µin (0.76µm)	30.0µin (0.76µm)
Contact Material	Copper Alloy	Brass	Copper Alloy	Brass	Phosphor Bronze Alloy	Phosphor Bronze Alloy	Phosphor Bronze Alloy	Phosphor Bronze Alloy	Phosphor Bronze Alloy
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-65°C ~ 105°C	Not specified	Not specified	Not specified	Not specified	Not specified
Current Rating	1.75A	1.75A	1.75A	1A per Contact	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
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	RoHS Compliant	Not applicable	RoHS non-compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant

Engineering Selection Recommendations

Primary Recommendation - 3M Series:

D3433-5002-AR and N3433-5002RB are direct 3M alternatives maintaining the same connector family lineage. Both parts are active products with full RoHS compliance status. D3433-5002-AR is manufacturer-recommended and offers ROHS3 compliance with active product status. N3433-5002RB provides RoHS compliance with extended inventory availability. Both maintain identical electrical specifications including 1.75A current rating and -55°C to 105°C operating temperature range.

Secondary Recommendation - TE Connectivity:

1-102160-0 from TE Connectivity AMP-Latch series provides an active alternative with extended operating temperature range (-65°C to 105°C). This part maintains all critical mating parameters and UL94 V-0 flammability rating. Current rating is specified at 1A per contact with 250VAC voltage rating. This option is suitable for applications requiring broader temperature performance.

Tertiary Recommendation - Amphenol ICC Quickie™ Series:

The Amphenol ICC 65823 series (65823-043, 65823-043LF, 65823-045LF, 65823-047LF, 65823-091LF) provides multiple configuration options with active product status. Parts designated with "LF" suffix carry RoHS compliance. These connectors feature phosphor bronze alloy contacts and polyester glass-filled insulation. Variations in contact length and fastening type (Push-Pull or Latch Lock/Eject Hooks) allow selection based on specific application requirements. The 65823-091LF variant includes latch lock fastening for enhanced retention.

Compliance Considerations:

For applications requiring RoHS compliance, select D3433-5002-AR, N3433-5002RB, or any Amphenol ICC part with "LF" designation (65823-043LF, 65823-045LF, 65823-047LF, 65823-091LF). The original 3433-1002 is RoHS non-compliant; migration to compliant alternatives is recommended for new designs and ongoing production.

Frequently Asked Questions (FAQ)

Q: Can I directly replace 3433-1002 with any of these substitute parts?

A: Yes, all listed substitutes maintain the critical electrical and mechanical parameters: 50-position, 2-row header configuration at 2.54mm pitch with through-hole right-angle mounting, solder termination, and gold mating contact finish. Physical form factor differences (3-wall vs. 4-wall shrouding) do not affect electrical compatibility but may require PCB layout verification for mechanical clearance.

Q: What is the difference between 3M D3433-5002-AR and N3433-5002RB?

A: Both are active 3M alternatives with identical electrical specifications. D3433-5002-AR is manufacturer-recommended with ROHS3 compliance and tray packaging. N3433-5002RB offers RoHS compliance with bulk packaging. Selection depends on packaging requirements and compliance certification specificity needed for your application.

Q: Why do some Amphenol ICC parts have "LF" designation?

A: The "LF" suffix indicates lead-free construction and RoHS compliance. Parts without "LF" designation (65823-043, 65823-045, 65823-047) are RoHS non-compliant. For new designs and regulated applications, select "LF" variants.

Q: Are there differences in contact post length among the Amphenol ICC options?

A: Yes. The 65823-043 and 65823-043LF variants have 0.105" (2.67mm) contact post length. The 65823-045 and 65823-045LF variants have 0.150" (3.81mm) contact post length. The 65823-047 and 65823-047LF variants have 0.675" (17.15mm) contact post length. Selection depends on PCB thickness and application-specific mounting requirements.

Q: What is the difference between Push-Pull and Latch Lock fastening types?

A: Push-Pull fastening (standard on most variants) provides basic mating/unmating capability. Latch Lock/Eject Hooks fastening (65823-091LF) provides enhanced retention and controlled ejection. Select based on application requirements for connector security and serviceability.

Q: Can I use TE Connectivity 1-102160-0 in place of 3433-1002?

A: Yes. The 1-102160-0 maintains all critical mating parameters and is fully compatible. It offers extended operating temperature range (-65°C to 105°C) compared to the original part (-55°C to 105°C). Current rating is specified at 1A per contact versus 1.75A for the 3M parts, which may be a limiting factor in high-current applications.

Q: What packaging options are available?

A: Substitutes are available in Bulk, Tray, and alternative packaging formats. Verify packaging compatibility with your procurement and assembly processes. Tray packaging (D3433-5002-AR, 65823-043LF, 65823-091LF) is suitable for automated assembly. Bulk packaging (N3433-5002RB, 1-102160-0, 65823-043, 65823-045, 65823-047) accommodates manual or high-volume processes.

Q: Are all substitutes UL94 V-0 rated?

A: Yes, all listed substitutes carry UL94 V-0 material flammability rating, matching the original 3433-1002 specification.

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