3M 3793-5503 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3793-5503 is a through-hole, right-angle rectangular connector header with 10 positions at 2.54mm pitch, designed for board-to-board or cable interconnection applications. This component features shrouded 4-wall construction with latch lock/eject hooks and gold-plated mating contacts. The part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications requiring compatible 10-position 2.54mm pitch header connectors.

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)
Mounting Type	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall
Termination	Solder
Contact Shape	Square
Insulation Material	Polycyclohexylenedimethylene Terephthalate (PCT), Polyester, Glass Filled
Operating Temperature	-55°C ~ 105°C
Current Rating	1.75A
Material Flammability Rating	UL94 V-0
Insulation Color	Black

Substitute Part Grouping Explanation

Substitution eligibility for the 3M 3793-5503 is determined by strict equivalence across the following critical parameters:

Connector Type & Contact Configuration: Header with male pins
Position Count & Pitch: 10 positions at 0.100" (2.54mm) mating pitch with 2-row configuration
Mounting & Orientation: Through-hole, right-angle mounting
Shrouding & Mechanical Design: Shrouded 4-wall construction
Electrical Performance: 1.75A current rating, solder termination
Environmental Compliance: UL94 V-0 flammability rating, -55°C to 105°C operating range

Three substitute parts meet these core criteria while maintaining functional compatibility:

D3793-5002-AR (3M, Active) - MFR recommended substitute with push-pull fastening
N3793-5002RB (3M, Active) - Active production alternative with push-pull fastening
PS-10PE-D4LT2-M1AE (JAE Electronics, Active) - Cross-manufacturer equivalent with latch lock fastening

Parameter Comparison

Parameter	3793-5503 (Main)	D3793-5002-AR	N3793-5002RB	PS-10PE-D4LT2-M1AE
Manufacturer	3M	3M	3M	JAE Electronics
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	10	10	10	10
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
Termination	Solder	Solder	Solder	Solder
Contact Shape	Square	Square	Square	Square
Contact Finish - Mating	Gold	Gold	Gold	Gold
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	Not specified
Current Rating	1.75A	1.75A	1.75A	Not specified
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Insulation Color	Black	Black	Black	Black
RoHS Status	Non-compliant	Compliant	Compliant	Compliant
Fastening Type	Latch Lock/Eject Hooks, Short	Push-Pull	Push-Pull	Latch Lock/Eject Hooks, Long
Contact Length - Mating	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.236" (6.00mm)
Contact Length - Post	0.155" (3.94mm)	0.112" (2.84mm)	0.112" (2.84mm)	0.130" (3.30mm)
Insulation Height	0.340" (8.64mm)	0.340" (8.64mm)	0.340" (8.64mm)	0.327" (8.30mm)

Engineering Selection Recommendations

For RoHS-compliant applications: D3793-5002-AR or N3793-5002RB are required, as the original 3793-5503 is RoHS non-compliant. Both 3M alternatives maintain active production status and full electrical/mechanical compatibility.

For 3M ecosystem continuity: D3793-5002-AR is the manufacturer-recommended substitute, offering active product status and tray packaging for production environments.

For maximum inventory availability: N3793-5002RB provides the highest stock level (1302 pcs) among active alternatives and maintains identical electrical specifications with bulk packaging.

For cross-manufacturer flexibility: PS-10PE-D4LT2-M1AE (JAE Electronics) offers an active alternative with equivalent core specifications. Note that operating temperature and current rating are not specified for this part; design validation is required for applications with strict thermal or current requirements.

Fastening type consideration: The original 3793-5503 uses short latch lock/eject hooks. Substitutes D3793-5002-AR and N3793-5002RB employ push-pull fastening, while PS-10PE-D4LT2-M1AE uses long latch lock/eject hooks. Mating connector compatibility must be confirmed for your specific application.

Frequently Asked Questions (FAQ)

Q: Can D3793-5002-AR directly replace 3793-5503 in existing designs?

A: D3793-5002-AR maintains identical mating pitch (0.100" / 2.54mm), position count (10), row configuration (2), mounting type (through-hole right-angle), and shrouding (4-wall). The primary difference is fastening type (push-pull vs. latch lock/eject hooks). Mating connector compatibility must be confirmed. The shorter contact post length (0.112" vs. 0.155") may affect PCB layout; verify clearance requirements.

Q: What is the significance of RoHS compliance differences?

A: The original 3793-5503 is RoHS non-compliant. Both D3793-5002-AR and N3793-5002RB are RoHS compliant, meeting regulatory requirements for new designs and applications subject to RoHS directives. PS-10PE-D4LT2-M1AE is also RoHS compliant.

Q: Are there packaging differences between substitute options?

A: D3793-5002-AR is supplied in tray packaging (production-oriented). N3793-5002RB is supplied in bulk packaging. PS-10PE-D4LT2-M1AE is supplied in bulk packaging. Select based on your procurement and assembly workflow requirements.

Q: How do contact post length variations affect PCB design?

A: The original 3793-5503 has a 0.155" (3.94mm) contact post length. D3793-5002-AR and N3793-5002RB have shorter posts at 0.112" (2.84mm). PS-10PE-D4LT2-M1AE has an intermediate length of 0.130" (3.30mm). Shorter posts may require PCB layout adjustment for solder joint formation and clearance to adjacent components.

Q: Is the JAE Electronics PS-10PE-D4LT2-M1AE suitable for all applications?

A: PS-10PE-D4LT2-M1AE meets core mechanical and shrouding specifications. However, operating temperature range and current rating are not specified for this part. Applications with defined thermal or current requirements should prioritize 3M alternatives where these parameters are fully documented.

Q: What is the difference between contact finish specifications?

A: All substitutes feature gold-plated mating contacts. Post finishes vary: 3793-5503 uses tin-lead; D3793-5002-AR and N3793-5002RB use tin; PS-10PE-D4LT2-M1AE uses tin. These differences do not affect mating compatibility but may influence solderability and long-term reliability in specific environmental conditions.

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