3M 3433-5502UG Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3433-5502UG is a through-hole, right-angle rectangular connector header with 50 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 construction with male pins, gold-plated mating contacts, and tin-lead post finishes, designed for board-to-board or cable interconnection in industrial and commercial electronics.

Key Parameters

Parameter	Value
Manufacturer Part Number	3433-5502UG
Manufacturer	3M
Category	Rectangular Connectors
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, Right Angle
Shrouding	Shrouded - 4 Wall
Contact Finish - Mating	Gold
Contact Finish - Post	Tin-Lead
Current Rating	1A
Operating Temperature	-55°C ~ 105°C
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the 3433-5502UG is determined by strict equivalence across the following critical parameters:

Number of positions: 50
Number of rows: 2
Pitch spacing: 0.100" (2.54mm)
Connector type: Header with male pins
Mounting configuration: Through hole, right angle
Shrouding: Shrouded 4-wall construction
Termination method: Solder
Operating temperature range: -55°C ~ 105°C
Insulation material: Polycyclohexylenedimethylene Terephthalate (PCT), Polyester, Glass Filled
Material flammability rating: UL94 V-0

The identified substitute parts maintain these core electrical and mechanical parameters while offering improvements in product status (active vs. obsolete) and regulatory compliance (RoHS status).

Parameter Comparison

Parameter	3433-5502UG (Main)	D3433-5002-AR (Substitute)	N3433-5002RB (Substitute)
Manufacturer	3M	3M	3M
Number of Positions	50	50	50
Number of Rows	2	2	2
Pitch - Mating	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)
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Contact Type	Male Pin	Male Pin	Male Pin
Contact Finish - Mating	Gold	Gold	Gold
Contact Finish - Post	Tin-Lead	Tin	Tin
Contact Material	Copper Alloy	Brass	Copper Alloy
Current Rating (Amps)	1A	1.75A	1.75A
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Insulation Material	PCT, Polyester, Glass Filled	PCT, Polyester, Glass Filled	PCT, Polyester, Glass Filled
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
Product Status	Obsolete	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	RoHS Compliant
Packaging	-	Tray	Bulk

Engineering Selection Recommendations

Both D3433-5002-AR and N3433-5002RB are functionally equivalent to the 3433-5502UG across all critical electrical and mechanical parameters. Selection between these substitutes should be based on the following factors:

D3433-5002-AR: This part carries ROHS3 compliance certification and is supplied in tray packaging. It features a brass contact material with improved current rating (1.75A vs. 1A) and is suitable for applications requiring enhanced regulatory compliance and organized component handling.

N3433-5002RB: This part maintains RoHS compliance and is supplied in bulk packaging. It retains the original copper alloy contact material while offering the same improved current rating (1.75A) and active product status. This option is suitable for high-volume applications where bulk packaging is preferred.

Both substitute parts eliminate the obsolescence risk associated with the original 3433-5502UG while maintaining full mechanical and electrical compatibility for board-to-board and cable interconnection applications.

Frequently Asked Questions (FAQ)

Q: Can D3433-5002-AR and N3433-5002RB be used interchangeably with 3433-5502UG?

A: Both substitute parts maintain identical pitch spacing (0.100" / 2.54mm), position count (50), row configuration (2 rows), mounting type (through hole, right angle), and shrouding (4-wall). They are mechanically and electrically compatible for direct substitution in applications designed for the 3433-5502UG.

Q: What is the difference between the two substitute parts?

A: D3433-5002-AR uses brass contacts and is supplied in tray packaging with ROHS3 certification. N3433-5002RB uses copper alloy contacts and is supplied in bulk packaging with RoHS compliance. Both offer identical electrical performance and current rating (1.75A).

Q: Why is the current rating higher in the substitute parts?

A: The substitute parts (D3433-5002-AR and N3433-5002RB) are rated for 1.75A compared to the original 1A rating. This reflects improved contact design and material specifications in the active product versions.

Q: Does the change from tin-lead to tin post finish affect compatibility?

A: The post finish change from tin-lead to tin does not affect mechanical or electrical compatibility. Both finishes provide equivalent solder joint reliability for through-hole termination applications.

Q: Which substitute should I select for new designs?

A: Both parts are suitable for new designs. D3433-5002-AR is recommended for applications requiring ROHS3 certification. N3433-5002RB is recommended for high-volume applications where bulk packaging reduces component handling costs.

Q: Are there any temperature or environmental differences between the parts?

A: All three parts share identical operating temperature range (-55°C ~ 105°C), insulation material (PCT, Polyester, Glass Filled), and flammability rating (UL94 V-0). No environmental performance differences exist.

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