Molex 0010892121 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Molex 0010892121 is a through-hole rectangular connector header with 12 positions arranged in 2 rows at 0.100" (2.54mm) pitch. This connector is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part features male pins with gold-plated mating contacts, tin-plated posts, and phosphor bronze contact material, designed for board-to-board or cable applications in automotive, medical, telecommunications, and general-purpose applications.

Key Parameters

Parameter	Value
Connector Type	Header, Breakaway
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	12
Number of Rows	2
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Contact Finish - Mating	Gold
Contact Finish - Post	Tin
Contact Material	Phosphor Bronze
Insulation Material	Polyester, Glass Filled
Material Flammability Rating	UL94 V-0
Insulation Color	Black
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the Molex 0010892121 is determined by strict alignment of the following critical parameters:

Pitch - Mating: 0.100" (2.54mm)
Number of Positions: 12
Number of Rows: 2
Row Spacing - Mating: 0.100" (2.54mm)
Connector Type: Header with male pins
Mounting Type: Through Hole
Termination: Solder
Contact Finish - Mating: Gold
Contact Finish - Post: Tin
Material Flammability Rating: UL94 V-0
Insulation Color: Black
Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts are grouped into two categories based on product status and compliance posture: Active manufacturer-recommended alternatives and discontinued parts with equivalent electrical and mechanical specifications. All listed substitutes maintain the core 12-position, 2-row, 2.54mm pitch configuration with through-hole solder termination and UL94 V-0 flammability rating.

Parameter Comparison

Part Number	Manufacturer	Series	Product Status	Pitch (mm)	Positions	Rows	Contact Length - Mating (mm)	Contact Length - Post (mm)	Overall Contact Length (mm)	Insulation Height (mm)	Contact Finish - Mating	Contact Material	Insulation Material	Operating Temperature (°C)	Current Rating (A)	RoHS Status
0010892121	Molex	C-Grid 8624	Obsolete	2.54	12	2	6.10	2.71	11.10	2.29	Gold	Phosphor Bronze	Polyester, Glass Filled	-	-	ROHS3 Compliant
5-146257-6	TE Connectivity AMP Connectors	AMPMODU Mod II	Active	2.54	12	2	5.84	3.05	11.18	2.29	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	-65 to 105	3	RoHS Compliant
5-146261-6	TE Connectivity AMP Connectors	AMPMODU Mod II	Active	2.54	12	2	5.84	2.29	10.41	2.29	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	-65 to 105	3	RoHS Compliant
10076801-101-12LF	Amphenol ICC (FCI)	BERGSTIK®	Active	2.54	12	2	5.84	2.50	11.18	2.85	Gold or Gold, GXT™	Phosphor Bronze	Thermoplastic	-65 to 130	3	RoHS Compliant
2312-6121-TG	3M	2300	Active	2.54	12	2	5.84	3.05	11.43	2.54	Gold	Copper Alloy	Thermoplastic, Glass Filled	-55 to 105	3	RoHS non-compliant
2312-6121TB	3M	2300	Active	2.54	12	2	5.84	3.05	11.43	2.54	Gold	Copper Alloy	Thermoplastic, Glass Filled	-55 to 105	3	RoHS non-compliant
4-103783-0-06	TE Connectivity AMP Connectors	AMPMODU Mod II	Discontinued at DiGi Electronics	2.54	12	2	5.84	2.29	10.41	2.29	Gold	Copper Alloy	Thermoplastic	-65 to 105	3	RoHS non-compliant
5-146255-6	TE Connectivity AMP Connectors	AMPMODU Mod II	Active	2.54	12	2	5.84	3.05	11.18	2.29	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	-65 to 105	3	RoHS Compliant
5-146256-6	TE Connectivity AMP Connectors	AMPMODU Mod II	Active	2.54	12	2	5.84	3.05	11.18	2.29	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	-65 to 105	3	ROHS3 Compliant
5-146258-6	TE Connectivity AMP Connectors	AMPMODU Mod II	Active	2.54	12	2	5.84	2.29	10.41	2.29	Tin	Copper Alloy	Liquid Crystal Polymer (LCP)	-65 to 105	3	ROHS3 Compliant
67996-112HLF	Amphenol ICC (FCI)	BERGSTIK® II	Active	2.54	12	2	5.84	2.41	10.80	2.54	Gold or Gold, GXT™	Phosphor Bronze	-	-65 to 125	3	RoHS Compliant

Engineering Selection Recommendations

Primary Recommendation - Active Status with RoHS3 Compliance:

5-146256-6 (TE Connectivity AMP Connectors) is the preferred substitute. This part maintains active product status, ROHS3 compliance matching the original part, and operates across the -65°C to 105°C temperature range. The AMPMODU Mod II series provides direct functional equivalence with 12-position, 2-row, 2.54mm pitch configuration and gold-plated mating contacts.

Secondary Recommendation - Active Status with RoHS Compliance:

5-146257-6 (TE Connectivity AMP Connectors) offers active availability with RoHS compliance. This part is functionally equivalent with extended post length (3.05mm vs. 2.71mm on the original), providing improved solder joint accessibility. Current rating of 3A per contact exceeds the original specification.

Alternative - Amphenol ICC BERGSTIK® Series:

10076801-101-12LF (Amphenol ICC) provides active status with RoHS compliance and extended operating temperature range (-65°C to 130°C). The BERGSTIK® series uses phosphor bronze contact material matching the original part. Insulation height of 2.85mm differs from the original 2.29mm, requiring PCB layout verification.

Non-RoHS Alternatives:

3M 2312-6121-TG and 2312-6121TB maintain active status but are RoHS non-compliant. These parts are suitable only for applications where RoHS compliance is not required. Both feature thermoplastic insulation material and operate across -55°C to 105°C.

Discontinued Status:

4-103783-0-06 (TE Connectivity) is discontinued at DiGi Electronics and carries RoHS non-compliant status. This part should be avoided for new designs despite technical equivalence.

Frequently Asked Questions (FAQ)

Q: Can I substitute the Molex 0010892121 with any of the listed parts?

A: Substitution depends on application requirements. All listed parts maintain the core 12-position, 2-row, 2.54mm pitch configuration with through-hole solder termination. However, differences in contact length, insulation height, and operating temperature range require verification against your specific PCB layout and thermal environment. RoHS compliance status must align with your regulatory requirements.

Q: What is the primary difference between the TE Connectivity AMPMODU Mod II variants?

A: The AMPMODU Mod II series differs primarily in contact finish and post length. 5-146257-6 features 3.05mm post length with gold mating finish. 5-146261-6 and 5-146258-6 feature 2.29mm post length. 5-146258-6 uses tin mating finish instead of gold. All variants maintain 2.54mm pitch and 12-position configuration.

Q: How does the Amphenol ICC BERGSTIK® series compare to the original Molex part?

A: The 10076801-101-12LF maintains phosphor bronze contact material matching the original part. Key differences include insulation height of 2.85mm (vs. 2.29mm original) and extended operating temperature to 130°C. The BERGSTIK® series offers GXT™ gold plating option for enhanced corrosion resistance.

Q: Are the 3M 2300 series parts suitable for new designs?

A: The 3M 2312-6121-TG and 2312-6121TB are RoHS non-compliant and should be used only in applications where RoHS compliance is not mandated. Both parts maintain active status and 3A current rating. Operating temperature range is -55°C to 105°C, which is narrower than some alternatives.

Q: What should I verify before implementing a substitute part?

A: Verify PCB layout compatibility with the substitute's insulation height and contact post length. Confirm operating temperature range meets your application requirements. Validate RoHS compliance status against your regulatory framework. Confirm current rating of 3A per contact is adequate for your circuit. Test mating force and mechanical fit with corresponding socket connectors.

Q: Why is the Molex 0010892121 listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The listed substitute parts provide equivalent functionality with active manufacturer support and current production status, ensuring long-term availability and supply chain continuity.

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