3M 3793-6403 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3793-6403 is a shrouded rectangular connector header for through-hole mounting with 10 positions arranged in 2 rows at 0.100" (2.54mm) pitch. This connector features male pins with gold-plated mating contacts and tin-lead plated posts, designed for board-to-cable or board-to-board applications. The part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. Substitute parts must maintain electrical compatibility, mechanical fit, and thermal performance within the specified operating range of -55°C to 105°C.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	10
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Shrouding	Shrouded - 4 Wall
Mounting Type	Through Hole
Termination	Solder
Contact Length - Mating	0.240" (6.10mm)
Contact Length - Post	0.155" (3.94mm)
Insulation Height	0.680" (17.27mm)
Contact Finish - Mating	Gold
Contact Finish - Post	Tin-Lead
Operating Temperature	-55°C ~ 105°C
Current Rating	1A
Material Flammability Rating	UL94 V-0
Insulation Color	Black

Substitute Part Grouping Explanation

Substitution of the 3M 3793-6403 is determined by the following critical parameters:

Electrical Compatibility: All substitute parts maintain 10-position, 2-row configuration at 0.100" (2.54mm) pitch with male pin contacts, 1A current rating, and UL94 V-0 flammability rating.

Mechanical Compatibility: Substitute parts feature shrouded 4-wall construction with through-hole solder termination and keying slots for proper alignment. Contact length specifications (mating and post) must accommodate existing PCB layouts and mating connector designs.

Thermal Performance: Operating temperature ranges of substitute parts must encompass or exceed the original -55°C to 105°C specification.

Contact Finish: Mating contact finish must be gold or gold-palladium to ensure reliable electrical connection. Post finish may vary between tin-lead and tin formulations based on RoHS compliance requirements.

Fastening Type: Original ejector fastening is replaced by latch lock/eject hooks or push-pull mechanisms in active substitutes, providing equivalent retention and release functionality.

The following active substitute parts meet these criteria: TE Connectivity AMP-Latch series (499206-1, 499922-1, 5102321-1, 5499206-1, 5499922-1, 5746443-1), Amphenol ICC Quickie™ series (53611-G10-6LF), and Assmann WSW Components (AWH 10G-0202-T).

Parameter Comparison

Parameter	3M 3793-6403	TE 499206-1	TE 499922-1	TE 5102321-1	Amphenol 53611-G10-6LF	TE 5499206-1	TE 5499922-1	TE 5746443-1	Assmann AWH 10G-0202-T
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
Number of Positions	10	10	10	10	10	10	10	10	10
Number of Rows	2	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)	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)	0.100" (2.54mm)
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	Shrouded - 4 Wall
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Press-Fit, Solder	Solder
Contact Length - Mating	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.230" (5.84mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	—
Contact Length - Post	0.155" (3.94mm)	0.110" (2.79mm)	0.110" (2.79mm)	0.155" (3.94mm)	0.150" (3.81mm)	0.110" (2.79mm)	0.110" (2.79mm)	0.174" (4.42mm)	0.130" (3.30mm)
Insulation Height	0.680" (17.27mm)	0.549" (13.94mm)	0.549" (13.94mm)	0.549" (13.94mm)	0.640" (16.26mm)	0.549" (13.94mm)	0.549" (13.94mm)	0.549" (13.94mm)	0.669" (17.00mm)
Contact Finish - Mating	Gold	Gold or Gold-Palladium	Gold or Gold-Palladium	Gold or Gold-Palladium	Gold or Gold, GXT™	Gold or Gold-Palladium	Gold or Gold-Palladium	Gold or Gold-Palladium	Gold
Contact Finish - Post	Tin-Lead	Tin-Lead	Tin-Lead	Tin	Tin	Tin	Tin	Tin	Tin
Operating Temperature	-55°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 105°C	—	-65°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 105°C	-40°C ~ 105°C
Current Rating	1A	1A	1A	1A per Contact	—	1A	1A	1A per Contact	3A
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
Insulation Color	Black	Black	Black	Black	Black	Black	Black	Black	Gray
RoHS Status	RoHS non-compliant	RoHS non-compliant	Not applicable	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Primary Substitutes for Direct Replacement:

TE Connectivity 5499206-1 and 5499922-1 are the preferred active substitutes. Both parts maintain the 10-position, 2-row 0.100" pitch configuration with shrouded 4-wall construction and through-hole solder termination. These parts are ROHS3 compliant and carry active product status with substantial inventory availability (500,200 and 3,557 units respectively). Operating temperature range extends to -65°C, exceeding the original specification.

Alternative Substitutes with Design Considerations:

TE Connectivity 5102321-1 provides ROHS3 compliance with contact post length of 0.155" (3.94mm), matching the original 3793-6403 specification. This part accommodates existing PCB designs without modification.

TE Connectivity 5746443-1 offers press-fit and solder termination options, providing design flexibility for new board layouts while maintaining electrical and mechanical compatibility.

Amphenol ICC 53611-G10-6LF (Quickie™ series) is RoHS compliant with active status. Contact post length of 0.150" (3.81mm) approximates the original specification. Insulation height of 0.640" (16.26mm) closely matches the original 0.680" (17.27mm).

Compatibility Constraint:

Assmann WSW AWH 10G-0202-T features push-pull fastening and 3A current rating. Insulation height of 0.669" (17.00mm) and contact post length of 0.130" (3.30mm) differ from the original. This part is suitable only when mating connector designs accommodate these dimensional variations.

RoHS Compliance Consideration:

The original 3M 3793-6403 is RoHS non-compliant. For applications requiring RoHS3 compliance, select from TE 5102321-1, TE 5499206-1, TE 5499922-1, Amphenol 53611-G10-6LF, or Assmann AWH 10G-0202-T.

Frequently Asked Questions (FAQ)

Q: Can TE 499206-1 and 5499206-1 be used interchangeably with the 3M 3793-6403?

A: Both TE parts maintain electrical and mechanical compatibility with the original. TE 499206-1 is packaged in bulk; TE 5499206-1 is packaged in trays. Both feature 0.100" (2.54mm) pitch, 10-position 2-row configuration, shrouded 4-wall construction, and 1A current rating. Contact post length differs at 0.110" (2.79mm) versus the original 0.155" (3.94mm). Verify mating connector depth tolerance before selection.

Q: What is the difference between TE 499922-1 and 5499922-1?

A: Both parts are electrically and mechanically identical with 10-position 2-row 0.100" pitch configuration. TE 499922-1 is supplied in trays (1,066 units available); TE 5499922-1 is supplied in bulk (3,557 units available). Contact finish thickness on mating surfaces differs: 499922-1 specifies 15.0µin (0.38µm) gold; 5499922-1 specifies 15.0µin (0.38µm) gold. Both are ROHS3 compliant with active product status.

Q: Does the Amphenol 53611-G10-6LF meet the original operating temperature specification?

A: Operating temperature range is not specified for the Amphenol part. Verify thermal performance requirements with the manufacturer before selection for applications requiring -55°C to 105°C operation.

Q: What are the dimensional constraints when substituting with TE 5102321-1?

A: TE 5102321-1 matches the original contact post length at 0.155" (3.94mm) and contact length mating at 0.240" (6.10mm). Insulation height is 0.549" (13.94mm) versus the original 0.680" (17.27mm). This dimensional difference may affect mating connector clearance. Verify PCB layout and mating connector specifications before implementation.

Q: Is the Assmann AWH 10G-0202-T suitable for high-current applications?

A: The Assmann part features 3A current rating, exceeding the original 1A specification. However, contact post length of 0.130" (3.30mm) and insulation height of 0.669" (17.00mm) differ from the original. Compatibility depends on mating connector design and PCB layout. Dimensional verification is required.

Q: Which substitute part offers the best RoHS3 compliance with minimal design changes?

A: TE 5102321-1 provides ROHS3 compliance with contact post length matching the original 0.155" (3.94mm). This minimizes PCB layout modifications. Insulation height reduction from 0.680" to 0.549" requires mating connector clearance verification.

Q: Can the original tin-lead post finish be replaced with tin-only finish?

A: All active substitute parts feature tin or tin-lead post finish. TE 499206-1 and 499922-1 specify tin-lead; remaining substitutes specify tin-only finish. Tin-only finish is compatible with lead-free solder processes and meets RoHS requirements. Verify solder process compatibility with your manufacturing specifications.

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