Molex 0010977206 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Molex 0010977206 is a vertical through-hole rectangular connector header with 20 positions arranged in 2 rows at 0.100" (2.54mm) pitch. This component is part of the C-Grid 70280 series and is actively manufactured. The connector features male pins with gold-plated mating contacts and tin-plated posts, designed for board-to-board or cable applications in automotive, medical, telecommunications, and general-purpose applications.

Substitute parts are necessary when the primary part becomes unavailable, when supply chain constraints require alternative sourcing, or when design flexibility permits equivalent components that meet the same electrical and mechanical specifications.

Key Parameters

Parameter	Value
Connector Type	Header, Breakaway
Contact Type	Male Pin
Number of Positions	20
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 Finish - Mating	Gold
Contact Finish - Post	Tin
Insulation Material	Liquid Crystal Polymer (LCP), Glass Filled
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0010977206 is determined by strict adherence to the following parameters:

Critical Parameters (Must Match Exactly):

20 positions in 2 rows
0.100" (2.54mm) mating pitch
0.100" (2.54mm) row spacing
Male pin contact type
Through-hole mounting
Solder termination
Push-pull fastening
Unshrouded design
Black insulation color
UL94 V-0 flammability rating

Allowable Variations:

Contact finish composition (gold thickness, tin vs. tin-lead on posts)
Insulation material (LCP vs. thermoplastic variants)
Contact length dimensions (within mechanical compatibility range)
Insulation height (within 0.090" to 0.100" range)
Contact material (copper alloy vs. phosphor bronze)
Operating temperature range
Current rating (when specified)
RoHS compliance status
Manufacturer and series designation

Substitute parts listed below meet all critical parameters while permitting variations in secondary characteristics that do not affect functional interchangeability in standard board-to-board applications.

Parameter Comparison

Parameter	Molex 0010977206	3M 2320-6221-TG	TE 4-102973-0-10	TE 6-146250-0	Amphenol 77313-124-20LF	Amphenol 77313-424-20LF	Amphenol 77313-822-20LF	Amphenol 77313-824-20LF	3M 929665-01-10-I	3M 929665-02-10-I	3M 929665-08-10-I
Positions	20	20	20	20	20	20	20	20	20	20	20
Rows	2	2	2	2	2	2	2	2	2	2	2
Pitch (mm)	2.54	2.54	2.54	2.54	2.54	2.54	2.54	2.54	2.54	2.54	2.54
Row Spacing (mm)	2.54	2.54	2.54	2.54	2.54	2.54	2.54	2.54	2.54	2.54	2.54
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Mounting Type	Through Hole	Through Hole	Through Hole	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	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Finish - Mating	Gold	Gold	Gold	Tin	Gold	Tin	Gold	Gold	Gold	Gold	Gold
Contact Finish - Post	Tin	Tin-Lead	Tin-Lead	Tin	Tin	Tin	Tin	Tin	Gold	Gold	Gold
Contact Material	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Copper Alloy	Copper Alloy	Copper Alloy
Insulation Material	LCP, Glass Filled	Thermoplastic, Glass Filled	Thermoplastic	LCP	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	PBT, Polyester, Glass Filled	PBT, Polyester, Glass Filled	PBT, Polyester, Glass Filled
Insulation Height (mm)	2.29	2.54	2.29	2.29	2.54	2.54	2.54	2.54	2.54	2.54	2.54
Operating Temperature	Not Specified	-55°C to 105°C	-65°C to 105°C	-65°C to 105°C	-65°C to 130°C	-65°C to 130°C	-65°C to 130°C	-65°C to 130°C	-40°C to 105°C	-40°C to 105°C	-40°C to 105°C
Current Rating	Not Specified	3A	3A	3A	3A per Contact	3A per Contact	3A per Contact	3A per Contact	2.5A	2.5A	2.5A
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	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	Non-Compliant	Non-Compliant	ROHS3 Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Primary Substitutes (Recommended for New Designs):

TE Connectivity 6-146250-0 and Amphenol ICC BERGSTIK series (77313-124-20LF, 77313-424-20LF, 77313-822-20LF, 77313-824-20LF) are the preferred substitutes. All are actively manufactured with ROHS3 compliance matching the Molex 0010977206. The TE 6-146250-0 offers LCP insulation material identical to the primary part and maintains active product status. Amphenol BERGSTIK variants provide extended operating temperature range (-65°C to 130°C) and are widely available with 1000+ units in stock.

Secondary Substitutes (Conditional Use):

3M 929665 series (929665-01-10-I, 929665-02-10-I, 929665-08-10-I) are RoHS compliant and actively manufactured but differ in contact post length and insulation material composition. These are suitable when mechanical envelope constraints permit variation in overall contact length. The 929665-02-10-I variant offers the highest inventory availability (5384 units).

Not Recommended for New Designs:

3M 2320-6221-TG and TE 4-102973-0-10 are not recommended. The 3M part is RoHS non-compliant, and the TE part is obsolete. The TE 4-102973-0-10 should only be used for legacy system maintenance where existing inventory exists.

Compliance Considerations:

For applications requiring ROHS3 compliance, select from: Molex 0010977206, TE 6-146250-0, Amphenol 77313-124-20LF, 77313-424-20LF, 77313-822-20LF, 77313-824-20LF, or 3M 929665 series. Avoid 3M 2320-6221-TG and TE 4-102973-0-10 in RoHS-regulated applications.

Frequently Asked Questions (FAQ)

Q: Can I use Amphenol BERGSTIK parts as direct replacements for the Molex 0010977206?

A: Yes. Amphenol 77313-124-20LF, 77313-424-20LF, 77313-822-20LF, and 77313-824-20LF meet all critical electrical and mechanical parameters. Differences in contact material (phosphor bronze vs. copper alloy) and contact finish thickness are within acceptable substitution tolerances for standard board-to-board applications. Verify mechanical envelope fit due to minor variations in contact length and insulation height.

Q: What is the difference between the 3M 929665 variants?

A: The 929665 series differs only in contact post length: 929665-01-10-I has 0.110" posts, 929665-02-10-I has 0.210" posts, and 929665-08-10-I has 0.310" posts. Select based on required board thickness and mating depth. All variants share identical mating contact length (0.235"), pitch, and electrical ratings.

Q: Is the TE 4-102973-0-10 suitable for new production?

A: No. This part is obsolete and should not be selected for new designs. Use TE 6-146250-0 as the active TE Connectivity equivalent.

Q: Do I need to consider contact finish differences when substituting?

A: Contact finish differences (gold thickness, tin vs. tin-lead) do not affect functional interchangeability in standard applications. However, for high-reliability or harsh environment applications, verify that the substitute's contact finish meets your specific corrosion resistance and wear requirements.

Q: Which substitute offers the best inventory availability?

A: 3M 929665-02-10-I has the highest inventory (5384 units). Amphenol 77313-822-20LF (1911 units) and 77313-824-20LF (1855 units) also offer strong availability. TE 6-146250-0 has 805 units in stock.

Q: Are there temperature rating differences I should consider?

A: Yes. Amphenol BERGSTIK parts operate to 130°C, while Molex, TE, and 3M 929665 parts are rated to 105°C or lower. For applications exceeding 105°C, Amphenol variants are required.

Q: Can I mix different substitute parts in the same assembly?

A: Mechanically, yes, provided all parts meet the 2.54mm pitch and 20-position configuration. However, for consistency and supply chain management, use a single part number per assembly.

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