Molex 0702800628 Rectangular Connector Header – Equivalent & Substitute Parts

Part Overview

The Molex 0702800628 is an 80-position, 2-row vertical header connector with 0.100" (2.54mm) pitch designed for through-hole board-to-board or cable applications. This connector features male pins with tin-plated copper alloy contacts, solder termination, and push-pull fastening. The part is active in production with 752 units currently in stock.

Equivalent and substitute parts are identified when design requirements permit variations in contact finish, insulation material, contact length, or row configuration while maintaining core electrical and mechanical compatibility at the 0.100" (2.54mm) pitch standard with 80-position capacity.

Key Parameters

Parameter	Molex 0702800628
Connector Type	Header, Breakaway
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	80
Number of Rows	2
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Contact Shape	Square
Material Flammability Rating	UL94 V-0
Insulation Color	Black
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0702800628 is determined by the following core parameters:

Pitch and Position Count: All substitutes must maintain 0.100" (2.54mm) mating pitch and support 80 total positions
Row Configuration: Primary substitutes maintain 2-row configuration with 0.100" (2.54mm) row spacing
Contact Type and Termination: Male pin contacts with solder termination required
Mounting and Fastening: Through-hole mounting with push-pull fastening
Flammability and MSL: UL94 V-0 rating and MSL 1 compliance required

Full 80-Position, 2-Row Equivalents (identical row and position count):

3M 2380-6121TG
Sullins PREC040DAAN-RC
Sullins PRPC040DABN-RC

Partial Configuration Alternatives (40-position, single-row variants):

Sullins PREC040SABN-RC
Sullins PREC040SACN-RC

These 40-position variants are suitable only when application requirements permit reduced position count and single-row configuration.

Parameter Comparison

Parameter	Molex 0702800628	3M 2380-6121TG	Sullins PREC040DAAN-RC	Sullins PRPC040DABN-RC	Sullins PREC040SABN-RC	Sullins PREC040SACN-RC
Manufacturer	Molex	3M	Sullins	Sullins	Sullins	Sullins
Connector Type	Header, Breakaway	Header	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
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)
Number of Positions	80	80	80	80	40	40
Number of Rows	2	2	2	2	1	1
Row Spacing - Mating	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
Termination	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Length - Mating	0.240" (6.10mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)
Contact Length - Post	0.175" (4.45mm)	0.120" (3.05mm)	0.120" (3.05mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.320" (8.13mm)
Overall Contact Length	0.505" (12.83mm)	0.450" (11.43mm)	0.448" (11.39mm)	0.558" (14.18mm)	0.558" (14.18mm)	0.648" (16.47mm)
Insulation Height	0.090" (2.29mm)	0.100" (2.54mm)	0.098" (2.50mm)	0.098" (2.50mm)	0.098" (2.50mm)	0.098" (2.50mm)
Contact Shape	Square	Square	Square	Square	Square	Square
Contact Finish - Mating	Tin	Gold	Tin	Gold	Tin	Tin
Contact Material	Copper Alloy	Copper Alloy	Brass	Brass	Brass	Brass
Insulation Material	Liquid Crystal Polymer (LCP), Glass Filled	Thermoplastic, Glass Filled	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)
Material Flammability Rating	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
Current Rating (Amps)	—	3A	3A per Contact	3A per Contact	3A per Contact	3A per Contact
Operating Temperature	—	-55°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C
RoHS Status	ROHS3 Compliant	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Full 80-Position, 2-Row Replacement (Direct Substitution):

Sullins PREC040DAAN-RC and PRPC040DABN-RC are preferred substitutes. Both maintain ROHS3 compliance, identical position and row configuration, and equivalent electrical performance. PREC040DAAN-RC features tin-plated contacts matching the original finish, while PRPC040DABN-RC provides gold-plated contacts for enhanced corrosion resistance. Both support -40°C to 105°C operating range and 3A per contact current rating.

The 3M 2380-6121TG is electrically compatible but carries RoHS non-compliance status, limiting its use in applications requiring regulatory compliance.

For Reduced Position Count Applications (40-Position, Single-Row):

Sullins PREC040SABN-RC and PREC040SACN-RC are suitable only when application design permits single-row configuration and 40-position capacity. Both are ROHS3 compliant with identical pitch and contact specifications. Selection between these variants depends on required post length: PREC040SABN-RC provides 0.230" (5.84mm) post length, while PREC040SACN-RC provides extended 0.320" (8.13mm) post length for deeper PCB penetration.

Frequently Asked Questions (FAQ)

Q: Can the 40-position Sullins connectors replace the 80-position Molex connector?

A: Only if application requirements permit reduced position count and single-row configuration. The 40-position variants are not direct substitutes for 80-position applications requiring full pin capacity or dual-row layout.

Q: What is the primary difference between PREC040DAAN-RC and PRPC040DABN-RC?

A: Contact finish differs. PREC040DAAN-RC uses tin-plated contacts; PRPC040DABN-RC uses gold-plated contacts. Both maintain identical position count, row configuration, and pitch specifications.

Q: Why is the 3M 2380-6121TG listed as a substitute if it is RoHS non-compliant?

A: It is listed based on electrical and mechanical compatibility at the 0.100" (2.54mm) pitch with 80-position, 2-row configuration. RoHS compliance status must be evaluated against specific application requirements before selection.

Q: What determines post length selection between PREC040SABN-RC and PREC040SACN-RC?

A: Post length is determined by PCB thickness and required solder joint depth. PREC040SABN-RC (0.230" post) suits standard PCB applications; PREC040SACN-RC (0.320" post) accommodates thicker PCBs or applications requiring extended solder engagement.

Q: Are contact length variations between substitutes significant?

A: Contact length variations affect mating depth and overall connector height. The Molex 0702800628 provides 0.240" (6.10mm) mating contact length; Sullins substitutes provide 0.230" (5.84mm). This 0.010" difference is within standard tolerance for 0.100" pitch connectors and does not affect electrical performance in standard board-to-board applications.

Q: What is the operating temperature range for each substitute?

A: Molex 0702800628 operating temperature is not specified. 3M 2380-6121TG operates -55°C to 105°C. All Sullins variants operate -40°C to 105°C. Application temperature requirements must be evaluated against these specifications.

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