N3793-2303RB Equivalent & Substitute Parts

Part Overview

The 3M N3793-2303RB is a rectangular connector header designed for through-hole mounting applications. This shrouded 10-position, 2-row connector with 0.100" (2.54mm) pitch serves board-to-board and cable interconnection requirements. The part is currently active in production with 954 units in stock. Substitute parts are identified to address supply chain flexibility, compliance requirements, and specific application constraints while maintaining electrical and mechanical compatibility.

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
Termination	Solder
Shrouding	Shrouded
Contact Shape	Square
Operating Temperature Range	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0
Current Rating	1.75A
RoHS Status	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following core parameters:

Mandatory Matching Parameters:

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
Termination: Solder
Contact Shape: Square
Material Flammability Rating: UL94 V-0
Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variations:

Shrouding configuration (3-wall vs. 4-wall)
Contact Length - Post (0.110" to 0.155")
Overall Contact Length (0.639" to 0.695")
Insulation Height (0.549" to 0.680")
Contact Finish - Post (Tin vs. Tin-Lead)
Contact Finish Thickness - Mating (15.0µin to 30.0µin)
Insulation Color (Black or Blue)
Operating Temperature Range (extended to -65°C minimum)
Current Rating (1A to 1.75A per contact)
Voltage Rating (250VAC where specified)
RoHS Status (Compliant or non-compliant variants)
REACH Status (Compliant or Affected variants)

All six substitute parts meet these criteria and are functionally interchangeable within the specified parameter tolerances.

Parameter Comparison

Parameter	N3793-2303RB (3M)	102321-1 (TE)	2-5102321-1 (TE)	2-5499206-1 (TE)	499206-1 (TE)	5102321-1 (TE)	5499206-1 (TE)	5499922-1 (TE)
Manufacturer	3M	TE Connectivity	TE Connectivity	TE Connectivity	TE Connectivity	TE Connectivity	TE Connectivity	TE Connectivity
Series	3000	AMP-Latch	AMP-Latch	AMP-Latch	AMP-Latch	AMP-Latch	AMP-Latch	AMP-Latch
Connector Type	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
Number of Positions	10	10	10	10	10	10	10	10
Number of Rows	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)
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)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Shrouding	Shrouded - 3 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Contact Length - Mating	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)
Contact Length - Post	0.155" (3.94mm)	0.155" (3.94mm)	0.155" (3.94mm)	0.110" (2.79mm)	0.110" (2.79mm)	0.155" (3.94mm)	0.110" (2.79mm)	0.110" (2.79mm)
Overall Contact Length	0.695" (17.65mm)	0.684" (17.37mm)	0.684" (17.37mm)	0.639" (16.23mm)	0.639" (16.23mm)	0.684" (17.37mm)	0.639" (16.23mm)	0.639" (16.23mm)
Insulation Height	0.680" (17.27mm)	0.549" (13.94mm)	0.549" (13.94mm)	0.549" (13.94mm)	0.549" (13.94mm)	0.549" (13.94mm)	0.549" (13.94mm)	0.549" (13.94mm)
Contact Shape	Square	Square	Square	Square	Square	Square	Square	Square
Contact Finish - Mating	Gold	Gold or Gold-Palladium	Gold or Gold-Palladium	Gold or Gold-Palladium	Gold or Gold-Palladium	Gold or Gold-Palladium	Gold or Gold-Palladium	Gold or Gold-Palladium
Contact Finish Thickness - Mating	30.0µin (0.76µm)	30.0µin (0.76µm)	30.0µin (0.76µm)	30.0µin (0.76µm)	30.0µin (0.76µm)	30.0µin (0.76µm)	30.0µin (0.76µm)	15.0µin (0.38µm)
Contact Finish - Post	Tin	Tin-Lead	Tin	Tin	Tin-Lead	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	-65°C ~ 105°C
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
Insulation Color	Black	Black	Blue	Blue	Black	Black	Black	Black
Current Rating	1.75A	1A per Contact	1A per Contact	1A	1A	1A per Contact	1A	1A
Voltage Rating	Not specified	250VAC	250VAC	250VAC	250VAC	250VAC	250VAC	250VAC
Contact Finish Thickness - Post	200.0µin (5.08µm)	100.0µin (2.54µm)	100.0µin (2.54µm)	100.0µin (2.54µm)	100.0µin (2.54µm)	100.0µin (2.54µm)	100.0µin (2.54µm)	100.0µin (2.54µm)
RoHS Status	RoHS Compliant	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Affected	REACH Unaffected	REACH Unaffected	REACH Affected	Vendor Undefined	REACH Unaffected	REACH Unaffected
Packaging	Bulk	Tray	Tray	Tray	Bulk	Tray	Tray	Bulk
Inventory	954 Pcs	974 Pcs	1447 Pcs	2468 Pcs	2584 Pcs	1410 Pcs	500200 Pcs	3557 Pcs

Engineering Selection Recommendations

For RoHS Compliance Requirements: Select 2-5102321-1, 2-5499206-1, 5102321-1, 5499206-1, or 5499922-1. These parts carry ROHS3 Compliant certification. The N3793-2303RB (RoHS Compliant) and 102321-1 or 499206-1 (RoHS non-compliant) are not suitable for applications requiring RoHS3 compliance.

For REACH Compliance Requirements: Select 2-5102321-1, 2-5499206-1, 5499206-1, or 5499922-1, which are REACH Unaffected. Parts 102321-1 and 499206-1 are REACH Affected. Part 5102321-1 has Vendor Undefined REACH status.

For Extended Temperature Range: All substitute parts operate from -65°C to 105°C, extending the lower temperature limit by 10°C compared to the N3793-2303RB (-55°C to 105°C).

For Current Rating Considerations: The N3793-2303RB provides 1.75A rating. All substitute parts are rated at 1A per contact or 1A total, representing a reduction in current capacity. Applications requiring the full 1.75A rating must retain the original part.

For Post Contact Length: Parts with 0.155" (3.94mm) post length: 102321-1, 2-5102321-1, 5102321-1. Parts with 0.110" (2.79mm) post length: 2-5499206-1, 499206-1, 5499206-1, 5499922-1. Post length selection depends on PCB thickness and assembly requirements.

For Packaging Format: Bulk packaging: N3793-2303RB, 499206-1, 5499922-1. Tray packaging: 102321-1, 2-5102321-1, 2-5499206-1, 5102321-1, 5499206-1.

For High-Volume Availability: Part 5499206-1 offers the highest inventory level at 500,200 units, followed by 2-5499206-1 at 2,468 units and 5499922-1 at 3,557 units.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a different shrouding configuration? A: Yes. The N3793-2303RB features 3-wall shrouding while all substitute parts feature 4-wall shrouding. Both configurations maintain the same 10-position, 2-row, 0.100" pitch geometry and are mechanically compatible. The 4-wall design provides additional contact protection.

Q: What is the impact of different contact post lengths? A: Post length affects solder joint formation and PCB hole engagement. The 0.155" (3.94mm) post length (102321-1, 2-5102321-1, 5102321-1) provides greater engagement for standard PCB thicknesses. The 0.110" (2.79mm) post length (2-5499206-1, 499206-1, 5499206-1, 5499922-1) is suitable for thinner PCB assemblies. Selection depends on your specific PCB thickness and assembly process.

Q: Are there compliance differences between substitute parts? A: Yes. For RoHS compliance, select ROHS3 Compliant variants (2-5102321-1, 2-5499206-1, 5102321-1, 5499206-1, 5499922-1). For REACH compliance, select REACH Unaffected variants (2-5102321-1, 2-5499206-1, 5499206-1, 5499922-1). The original N3793-2303RB is RoHS Compliant and REACH Unaffected.

Q: Does contact finish affect electrical performance? A: Contact finish specifications are provided for reference. All parts use gold or gold-palladium mating surfaces with tin or tin-lead post finishes. These finishes are standard for rectangular connectors and maintain equivalent electrical performance within the specified current and voltage ratings.

Q: What is the current rating difference? A: The N3793-2303RB is rated at 1.75A. All substitute parts are rated at 1A per contact or 1A total. Applications requiring currents above 1A must verify compatibility with the substitute part's lower rating.

Q: Can I mix substitute parts in the same assembly? A: All substitute parts are mechanically and electrically interchangeable within the specified parameter tolerances. However, assembly consistency and traceability practices should guide part selection to use a single part number per design revision.

Q: What packaging considerations apply? A: The N3793-2303RB is supplied in bulk packaging. Substitute parts are available in both bulk (499206-1, 5499922-1) and tray (102321-1, 2-5102321-1, 2-5499206-1, 5102321-1, 5499206-1) formats. Packaging selection depends on your procurement and assembly workflow requirements.

Q: Are all substitute parts currently in production? A: Yes. All substitute parts carry Active product status, confirming current manufacturing availability.

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