Molex 0010977806 Equivalent & Substitute Parts

Part Overview

The Molex 0010977806 is an 80-position rectangular connector header with 2.54mm pitch, designed for through-hole board-to-board or cable applications. This connector features a breakaway design with unshrouded construction and gold-plated mating contacts. The part is currently active in production with 789 units in stock. Equivalent and substitute parts are identified to support design flexibility, inventory management, and supply chain continuity for applications requiring 80-position 2.54mm pitch header connectors.

Key Parameters

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

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0010977806 is determined by strict adherence to the following critical parameters:

Primary Matching Criteria:

80-position connector with 2-row configuration
0.100" (2.54mm) mating pitch and row spacing
Male pin contact type
Through-hole solder termination
Push-pull fastening mechanism
Unshrouded header design
Square contact shape
UL94 V-0 flammability rating
Black insulation color

Secondary Compatibility Parameters:

Contact material (Copper Alloy or Brass acceptable)
Insulation material (LCP, Thermoplastic, or PBT acceptable)
Contact finish options (Gold or Tin acceptable for mating surface)
Operating temperature range (must support intended application)
RoHS compliance status (ROHS3 Compliant or RoHS non-compliant based on application requirements)

All four substitute parts meet the primary matching criteria. Variations in contact length, contact finish thickness, and insulation material represent acceptable engineering tolerances within the 2.54mm pitch header connector category.

Parameter Comparison

Parameter	Molex 0010977806	3M 2380-6221-TG	Sullins PREC040DFAN-RC	Sullins PRPC040DFAN-RC	Sullins PRPC040DFBN-RC
Manufacturer	Molex	3M	Sullins Connector Solutions	Sullins Connector Solutions	Sullins Connector Solutions
Number of Positions	80	80	80	80	80
Number of Rows	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)
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Connector Type	Header, Breakaway	Header	Header, Breakaway	Header, Breakaway	Header, Breakaway
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Length - Mating	0.320" (8.13mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)
Contact Length - Post	0.110" (2.79mm)	0.120" (3.05mm)	0.120" (3.05mm)	0.120" (3.05mm)	0.220" (5.58mm)
Overall Contact Length	0.520" (13.21mm)	0.538" (13.67mm)	0.537" (13.63mm)	0.537" (13.63mm)	0.637" (16.17mm)
Insulation Height	0.090" (2.29mm)	0.100" (2.54mm)	0.098" (2.50mm)	0.098" (2.50mm)	0.098" (2.50mm)
Contact Shape	Square	Square	Square	Square	Square
Contact Finish - Mating	Gold	Gold	Tin	Gold	Gold
Contact Material	Copper Alloy	Copper Alloy	Brass	Brass	Brass
Insulation Material	Liquid Crystal Polymer (LCP), Glass Filled	Thermoplastic, Glass Filled	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
Insulation Color	Black	Black	Black	Black	Black
Operating Temperature	Not specified	-55°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C
Current Rating	Not specified	3A	3A per Contact	3A per Contact	3A per Contact
RoHS Status	ROHS3 Compliant	RoHS non-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

Molex 0010977806 (Primary Part) Use when ROHS3 compliance is required and LCP insulation material is specified. This part maintains active production status with established supply availability.

3M 2380-6221-TG This substitute is functionally equivalent for mechanical and electrical compatibility. However, RoHS non-compliance restricts use to applications where RoHS exemptions apply or where regulatory requirements do not mandate ROHS3 compliance. The 3M part offers the widest operating temperature range (-55°C to 105°C) among all options. Use when legacy RoHS non-compliant designs are acceptable and extended low-temperature performance is required.

Sullins PREC040DFAN-RC This substitute provides ROHS3 compliance with tin mating contact finish. The brass contact material and PBT insulation represent acceptable alternatives to the Molex copper alloy and LCP construction. Operating temperature range is -40°C to 105°C. Use when tin-plated mating contacts are acceptable and cost optimization is a priority.

Sullins PRPC040DFAN-RC This substitute provides ROHS3 compliance with gold mating contact finish and flash plating on post contacts. The brass contact material and PBT insulation are functionally equivalent to the Molex design. Operating temperature range is -40°C to 105°C. Use when gold-plated mating contacts are required and ROHS3 compliance is mandatory.

Sullins PRPC040DFBN-RC This substitute is identical to PRPC040DFAN-RC except for extended post contact length (0.220" versus 0.120"). This longer post length results in overall contact length of 0.637" compared to 0.537" for other Sullins parts. Use only when PCB thickness or application-specific requirements demand extended post length. ROHS3 compliant with gold plating and -40°C to 105°C operating range.

Frequently Asked Questions (FAQ)

Q: Can I substitute the Molex 0010977806 with any of these parts directly? A: Yes, all four substitute parts are mechanically and electrically compatible for 80-position 2.54mm pitch header applications. Substitution is valid provided your application accepts the specific contact material, insulation material, and operating temperature range of the selected substitute.

Q: What is the key difference between the Sullins PRPC040DFAN-RC and PRPC040DFBN-RC? A: The primary difference is post contact length. PRPC040DFAN-RC has 0.120" post length, while PRPC040DFBN-RC has 0.220" post length. Select PRPC040DFBN-RC only if your PCB thickness or mechanical design requires the extended post length.

Q: Which substitute offers the best low-temperature performance? A: The 3M 2380-6221-TG supports -55°C minimum operating temperature, compared to -40°C for all Sullins parts. The Molex 0010977806 does not specify an operating temperature range. Select the 3M part if extended low-temperature operation below -40°C is required.

Q: Are all these parts RoHS compliant? A: The Molex 0010977806, Sullins PREC040DFAN-RC, Sullins PRPC040DFAN-RC, and Sullins PRPC040DFBN-RC are ROHS3 compliant. The 3M 2380-6221-TG is RoHS non-compliant. Select a ROHS3-compliant part if your application or regulatory environment mandates RoHS compliance.

Q: What is the difference between tin and gold mating contact finishes? A: The Sullins PREC040DFAN-RC features tin mating contacts, while PRPC040DFAN-RC and PRPC040DFBN-RC feature gold mating contacts. Gold provides superior corrosion resistance and lower contact resistance. Tin is acceptable for general-purpose applications where cost optimization is prioritized. The Molex 0010977806 uses gold mating contacts.

Q: Can I use these parts interchangeably in existing designs? A: Mechanical and electrical interchangeability is confirmed for all four substitutes. However, verify that your PCB layout accommodates the insulation height variations (0.090" to 0.100") and contact length differences, particularly the extended post length of PRPC040DFBN-RC. Confirm that contact material (copper alloy versus brass) and insulation material (LCP versus PBT versus thermoplastic) meet your application requirements.

Q: Which substitute has the highest current rating? A: All Sullins parts and the 3M part specify 3A current rating per contact. The Molex 0010977806 does not specify a current rating. For applications requiring current specifications, select any of the rated substitutes.

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