Molex 0872630403 Equivalent & Substitute Parts

Part Overview

The Molex 0872630403 is a 4-position rectangular receptacle connector with 0.079" (2.00mm) pitch, designed for surface mount applications in board-to-board or cable interconnect configurations. This connector features gold-plated mating contacts, push-pull fastening, and operates across -55°C to 105°C. The part is active and in production with 904 units currently in stock.

Substitute parts are necessary when original inventory is unavailable, when packaging requirements differ (bulk versus tape & reel), or when enhanced electrical performance characteristics are required for specific applications.

Key Parameters

Parameter	Value
Connector Type	Receptacle, Bottom Entry
Number of Positions	4
Pitch - Mating	0.079" (2.00mm)
Number of Rows	2
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Surface Mount
Fastening Type	Push-Pull
Contact Finish - Mating	Gold
Operating Temperature Range	-55°C ~ 105°C
Current Rating	1A
Voltage Rating	125VAC
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

The Samtec Tiger Eye™ SMM series connectors (SMM-102-02-F-D, SMM-102-02-S-D-TR, SMM-102-02-S-D-LC, SMM-102-02-S-D-K-TR) are qualified substitutes for the Molex 0872630403 based on the following critical parameters:

Matching Parameters:

4-position receptacle configuration
0.079" (2.00mm) pitch and row spacing
Surface mount termination with solder
Push-pull fastening mechanism
Gold-plated mating contacts
Black insulation color
UL94 V-0 flammability rating
ROHS3 compliance
MSL 1 rating

Differentiation Parameters: The substitute parts vary in packaging format (bulk or tape & reel), contact finish thickness, insulation height, operating temperature range (extended to 125°C), current rating (3.2A per contact), voltage rating (350VAC), insulation material (liquid crystal polymer), and contact shape (square versus circular). These variations allow selection based on specific application requirements and supply chain constraints.

Parameter Comparison

Parameter	Molex 0872630403	SMM-102-02-F-D	SMM-102-02-S-D-TR	SMM-102-02-S-D-LC	SMM-102-02-S-D-K-TR
Manufacturer	Molex	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.
Number of Positions	4	4	4	4	4
Pitch - Mating	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Number of Rows	2	2	2	2	2
Row Spacing - Mating	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Termination	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold
Operating Temperature Range	-55°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Current Rating	1A	3.2A per Contact	3.2A per Contact	3.2A per Contact	3.2A per Contact
Voltage Rating	125VAC	350VAC	350VAC	350VAC	350VAC
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Insulation Height	0.110" (2.79mm)	0.140" (4.66mm)	0.140" (4.66mm)	0.140" (4.66mm)	0.140" (4.66mm)
Insulation Material	Thermoplastic	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)
Contact Shape	Circular	Square	Square	Square	Square
Packaging	Tube	Bulk	Tape & Reel (TR)	Bulk	Tape & Reel (TR)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts maintain active production status and ROHS3 compliance, ensuring long-term availability and regulatory alignment with the original Molex 0872630403.

Packaging Selection:

SMM-102-02-F-D and SMM-102-02-S-D-LC: Bulk packaging suitable for manual assembly or low-volume production
SMM-102-02-S-D-TR and SMM-102-02-S-D-K-TR: Tape & reel packaging optimized for automated pick-and-place assembly

Feature Considerations:

SMM-102-02-S-D-LC includes board lock feature for enhanced mechanical retention
SMM-102-02-S-D-K-TR includes pick-and-place feature for automated assembly compatibility

Electrical Performance: Samtec substitutes provide enhanced electrical ratings (3.2A per contact, 350VAC) compared to the original specification (1A, 125VAC), enabling use in higher-power applications while maintaining backward compatibility with original design requirements.

Frequently Asked Questions (FAQ)

Q: Are the Samtec SMM-102 series connectors mechanically compatible with the Molex 0872630403?

A: Yes. Both the original and substitute parts share identical pitch (0.079"), row spacing (0.079"), number of positions (4), and push-pull fastening mechanism. Mating interfaces are compatible. Insulation height differs (0.110" versus 0.140"), which may affect board layout clearance in constrained designs.

Q: Can I use the Samtec substitutes in applications originally designed for the Molex 0872630403?

A: Yes. The substitute parts meet or exceed the original electrical specifications (1A/125VAC). The enhanced ratings (3.2A/350VAC) provide design margin. Verify that the increased insulation height (0.140" versus 0.110") does not conflict with PCB layout constraints.

Q: What is the difference between bulk and tape & reel packaging options?

A: Bulk packaging (SMM-102-02-F-D, SMM-102-02-S-D-LC) is suitable for manual assembly or low-volume production runs. Tape & reel packaging (SMM-102-02-S-D-TR, SMM-102-02-S-D-K-TR) is optimized for automated pick-and-place assembly equipment, reducing handling time and improving placement accuracy in high-volume manufacturing.

Q: Does the board lock feature on SMM-102-02-S-D-LC provide additional mechanical security?

A: The board lock feature provides enhanced mechanical retention during mating and unmating cycles. This feature is specified in the part documentation and should be evaluated based on application requirements for connector stability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts carry ROHS3 compliance certification, matching the original Molex 0872630403 regulatory status.

Q: What is the moisture sensitivity level for these connectors?

A: All parts, including the original and substitutes, carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage or handling.

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