3M 3428-600T02TC Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The 3M 3428-600T02TC is a shrouded rectangular header connector with 20 positions arranged in 2 rows, designed for through-hole mounting with press-fit and solder termination. This connector operates across the industrial temperature range of -55°C to 105°C and features gold-plated mating contacts with tin-lead post finish. The product is currently obsolete, making identification of active equivalent parts essential for ongoing design support and procurement.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	20
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	Press-Fit, Solder
Operating Temperature	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0
Current Rating	1A

Substitute Part Grouping Explanation

The 3M N3428-600T02RB qualifies as a direct substitute based on the following critical parameters:

Identical connector type (Header), contact type (Male Pin), and position count (20 positions in 2 rows)
Matching pitch specifications: 0.100" (2.54mm) mating pitch and 0.100" (2.54mm) row spacing
Identical mounting configuration: Through Hole with Press-Fit and Solder termination
Matching shrouding design: Shrouded - 4 Wall construction
Identical operating temperature range: -55°C ~ 105°C
Matching insulation material: Polycyclohexylenedimethylene Terephthalate (PCT), Glass Filled
Equivalent flammability rating: UL94 V-0
Identical contact shape and mating contact length specifications

The N3428-600T02RB is an active product, providing continuity for applications currently using the obsolete 3428-600T02TC.

Parameter Comparison

Parameter	3428-600T02TC (Main Part)	N3428-600T02RB (Substitute)
Manufacturer	3M	3M
Series	3000	3000
Product Status	Obsolete	Active
Connector Type	Header	Header
Contact Type	Male Pin	Male Pin
Number of Positions	20	20
Number of Rows	2	2
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole	Through Hole
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall
Termination	Press-Fit, Solder	Press-Fit, Solder
Contact Length - Mating	0.240" (6.10mm)	0.240" (6.10mm)
Contact Length - Post	0.175" (4.45mm)	0.175" (4.45mm)
Overall Contact Length	0.715" (18.16mm)	0.715" (18.16mm)
Insulation Height	0.680" (17.27mm)	0.680" (17.27mm)
Contact Shape	Square	Square
Contact Finish - Mating	Gold	Gold
Contact Finish Thickness - Mating	30.0µin (0.76µm)	30.0µin (0.76µm)
Contact Finish - Post	Tin-Lead	Tin
Contact Finish Thickness - Post	100.0µin (2.54µm)	300.0µin (7.62µm)
Contact Material	Copper Alloy	Copper Alloy
Insulation Material	Polycyclohexylenedimethylene Terephthalate (PCT), Glass Filled	Polycyclohexylenedimethylene Terephthalate (PCT), Glass Filled
Features	Keying Slot, Mounting Flange	Keying Slot, Mounting Flange
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0
Insulation Color	Black	Black
Current Rating	1A	1.75A
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99
HTSUS	8536.69.4040	8536.69.4040

Engineering Selection Recommendations

The N3428-600T02RB is the recommended substitute for the obsolete 3428-600T02TC. Both connectors share identical mechanical and electrical specifications across all critical parameters including pitch, position count, mounting type, and operating temperature range. The substitute part is currently in active production status, ensuring availability and supply chain continuity.

The N3428-600T02RB demonstrates enhanced performance characteristics with a higher current rating of 1.75A compared to the original 1A specification, and increased post contact finish thickness of 300.0µin versus 100.0µin. The post finish material differs from tin-lead to tin, reflecting modern manufacturing standards. Both parts maintain equivalent UL94 V-0 flammability ratings and identical moisture sensitivity levels.

For applications requiring the original tin-lead post finish specification, compatibility assessment should be conducted based on specific assembly and environmental requirements. The substitute part's higher current rating and thicker post finish provide equivalent or superior performance for standard applications.

Frequently Asked Questions (FAQ)

Q: Can the N3428-600T02RB directly replace the 3428-600T02TC in existing designs?

A: Yes. Both connectors share identical mechanical dimensions, pitch specifications, position counts, mounting types, and operating temperature ranges. The substitute part is mechanically and electrically compatible for board-level integration.

Q: What is the difference in post contact finish between these parts?

A: The original 3428-600T02TC uses tin-lead finish with 100.0µin thickness. The substitute N3428-600T02RB uses tin finish with 300.0µin thickness. This represents a change in material composition and increased thickness, reflecting current manufacturing practices and RoHS compliance considerations.

Q: Does the higher current rating of the N3428-600T02RB affect compatibility?

A: No. The higher current rating of 1.75A in the substitute part provides enhanced capability compared to the original 1A specification. Applications designed for the original part will operate within the substitute part's rated specifications.

Q: Are both parts available in the same shrouding configuration?

A: Yes. Both the 3428-600T02TC and N3428-600T02RB feature identical shrouded 4-wall construction with keying slots and mounting flanges.

Q: What is the inventory status for these parts?

A: The original 3428-600T02TC is obsolete with 951 pieces available as new original stock. The substitute N3428-600T02RB is an active product with 795 pieces currently in stock.

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