3M 3428-5502 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3428-5502 is a through-hole, right-angle rectangular connector header with 20 positions at 2.54mm pitch, designed for board-to-board or cable interconnection applications. This part operates across the -55°C to 105°C temperature range with a 1.75A current rating per contact and features shrouded 4-wall construction with gold-plated mating contacts and tin-lead post finish.

The 3428-5502 carries an obsolete product status. Identifying qualified substitute parts ensures design continuity and maintains supply chain reliability for applications requiring equivalent electrical and mechanical performance.

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, Right Angle
Shrouding	Shrouded - 4 Wall
Fastening Type	Latch Lock/Eject Hooks, Short
Contact Length - Mating	0.240" (6.10mm)
Contact Length - Post	0.112" (2.84mm)
Insulation Height	0.340" (8.64mm)
Contact Shape	Square
Contact Finish - Mating	Gold
Contact Material	Copper Alloy
Operating Temperature	-55°C ~ 105°C
Current Rating	1.75A
Material Flammability Rating	UL94 V-0
Insulation Material	PCT, Polyester, Glass Filled
Insulation Color	Black
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 3428-5502 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

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, Right Angle
Shrouding: Shrouded - 4 Wall
Contact length - mating: 0.240" (6.10mm)
Contact shape: Square
Operating temperature range: -55°C ~ 105°C
Current rating: 1.75A
Material flammability rating: UL94 V-0
Insulation material: PCT, Polyester, Glass Filled

Allowable Variations:

Fastening type: Latch Lock/Eject Hooks (Short) or Push-Pull
Contact finish - post: Tin-Lead or Tin
Contact material: Copper Alloy or Brass
Contact finish - mating thickness: 10.0µin to 30.0µin
Contact finish - post thickness: 39.4µin to 200.0µin
Insulation height: 0.315" to 0.340"
Contact length - post: 0.110" to 0.112"
Packaging: Tray or Bulk
Product status: Active or Obsolete
RoHS compliance: Compliant or non-compliant
Manufacturer: 3M or TE Connectivity

Three substitute parts meet these criteria and are qualified for direct replacement.

Parameter Comparison

Parameter	3428-5502 (Main)	D3428-5002-AR	N3428-5002RB	2-5499345-4
Manufacturer	3M	3M	3M	TE Connectivity
Product Status	Obsolete	Active	Active	Active
Connector Type	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	20	20	20	20
Number of Rows	2	2	2	2
Pitch - Mating	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)
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Fastening Type	Latch Lock/Eject Hooks, Short	Push-Pull	Push-Pull	Latch Lock/Eject Hooks, Short
Contact Length - Mating	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)
Contact Length - Post	0.112" (2.84mm)	0.112" (2.84mm)	0.112" (2.84mm)	0.110" (2.79mm)
Insulation Height	0.340" (8.64mm)	0.340" (8.64mm)	0.340" (8.64mm)	0.315" (8.00mm)
Contact Shape	Square	Square	Square	Square
Contact Finish - Mating	Gold	Gold	Gold	Gold or Gold-Palladium
Contact Finish Thickness - Mating	30.0µin (0.76µm)	10.0µin (0.25µm)	30.0µin (0.76µm)	30.0µin (0.76µm)
Contact Finish - Post	Tin-Lead	Tin	Tin	Tin
Contact Finish Thickness - Post	200.0µin (5.08µm)	39.4µin (1.00µm)	200.0µin (5.08µm)	100.0µin (2.54µm)
Contact Material	Copper Alloy	Brass	Copper Alloy	Brass
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-65°C ~ 105°C
Current Rating	1.75A	1.75A	1.75A	1A per Contact
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Insulation Material	PCT, Polyester, Glass Filled	PCT, Polyester, Glass Filled	PCT, Polyester, Glass Filled	Not specified
Insulation Color	Black	Black	Black	Blue
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Packaging	Not specified	Tray	Bulk	Tray

Engineering Selection Recommendations

D3428-5002-AR (3M, Active Status)

This part is the primary recommended substitute. It maintains full electrical and mechanical compatibility with the 3428-5502 across all critical parameters. The D3428-5002-AR carries active product status and ROHS3 compliance, providing long-term supply assurance. The fastening mechanism differs (Push-Pull versus Latch Lock), which is an allowable variation. Contact finish thickness on the post is reduced (39.4µin versus 200.0µin), remaining within acceptable operational limits. The contact material changes from Copper Alloy to Brass, which is functionally equivalent for this application class.

N3428-5002RB (3M, Active Status)

This substitute maintains the original 3M series designation and preserves Copper Alloy contact material identical to the main part. It carries active product status and ROHS3 compliance. The fastening type is Push-Pull rather than Latch Lock, and post finish thickness remains at 200.0µin, matching the original specification. Packaging is supplied in bulk format. This part is suitable for applications where the original fastening mechanism is not critical to system design.

2-5499345-4 (TE Connectivity AMP-Latch, Active Status)

This TE Connectivity alternative provides cross-manufacturer substitution with active product status and ROHS3 compliance. It retains the original Latch Lock fastening mechanism, matching the 3428-5502 design. The operating temperature range extends to -65°C, providing enhanced low-temperature performance. Current rating is specified at 1A per contact, which is lower than the 1.75A rating of the main part and substitutes. Insulation height is reduced to 0.315" and contact length post is 0.110", representing minor dimensional variations. Insulation color is blue rather than black. This part is suitable for applications where the lower current rating is acceptable and cross-manufacturer qualification is required.

Frequently Asked Questions (FAQ)

Q: Can D3428-5002-AR be used as a direct replacement for 3428-5502 in existing designs?

A: Yes. The D3428-5002-AR meets all mandatory electrical and mechanical parameters. The fastening mechanism change from Latch Lock to Push-Pull is an allowable variation that does not affect electrical performance. Mechanical integration should be evaluated based on the specific application's connector retention requirements.

Q: What is the significance of the RoHS compliance difference?

A: The 3428-5502 is RoHS non-compliant due to tin-lead post finish. All three substitutes are ROHS3 compliant, using tin post finish instead. For applications subject to RoHS regulations or customer requirements, the compliant substitutes are necessary. For legacy systems without RoHS mandates, either compliant or non-compliant parts are functionally equivalent.

Q: Why does 2-5499345-4 have a lower current rating?

A: The 2-5499345-4 is rated at 1A per contact versus 1.75A for the main part and other substitutes. Applications requiring the full 1.75A rating must use D3428-5002-AR or N3428-5002RB. Applications with current requirements at or below 1A per contact can use the TE Connectivity part.

Q: Are there packaging considerations for these substitutes?

A: D3428-5002-AR is supplied in Tray packaging. N3428-5002RB is supplied in Bulk packaging. 2-5499345-4 is supplied in Tray packaging. Packaging format affects handling, storage, and automated assembly compatibility. Verify packaging requirements with your procurement and manufacturing processes.

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

A: Latch Lock/Eject Hooks (Short) provides positive mechanical retention with manual ejection capability. Push-Pull fastening uses a sliding mechanism for connection and disconnection. Both are allowable variations for this connector class. System design should confirm that the mating connector type is compatible with the selected fastening mechanism.

Q: Can N3428-5002RB and D3428-5002-AR be used interchangeably?

A: Yes, both parts are electrically and mechanically equivalent. The primary differences are fastening type (both Push-Pull), contact material (Copper Alloy versus Brass), and post finish thickness (200.0µin versus 39.4µin). These variations are within allowable parameters. Selection between them depends on packaging preference (Bulk versus Tray) and material specification requirements.

Q: Is the insulation color difference between 2-5499345-4 (blue) and the other parts (black) significant?

A: Insulation color is a visual identification feature and does not affect electrical or mechanical performance. The color difference reflects different manufacturer design standards. For applications requiring specific color coding for internal documentation or assembly procedures, this should be noted during design transition.

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