Molex 0901220126 Equivalent & Substitute Parts

Part Overview

The Molex 0901220126 is a rectangular connector header featuring a right-angle, through-hole design with 12 positions arranged in 2 rows at 0.100" (2.54mm) pitch. This connector is part of the C-Grid III 90122 series and is classified as active product status. The part is used in board-to-board and cable applications requiring push-pull fastening with solder termination. Equivalent and substitute parts are identified when design requirements change, inventory constraints occur, or when alternative manufacturers offer compatible solutions meeting the same electrical and mechanical specifications.

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, Right Angle
Termination	Solder
Fastening Type	Push-Pull
Contact Shape	Square
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the Molex 0901220126 are qualified based on the following critical parameters that must match or be compatible:

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, Right Angle
Termination: Solder
Fastening Type: Push-Pull
Contact Type: Male Pin
Contact Shape: Square
Material Flammability Rating: UL94 V-0

The substitute parts listed below meet these core requirements. Variations in contact length, insulation height, contact material, contact finish, and current rating are permitted within the scope of board-to-board and cable connection applications. Product status and compliance certifications are documented to support engineering selection decisions.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Pitch (mm)	Positions	Rows	Contact Length - Mating (mm)	Contact Length - Post (mm)	Insulation Height (mm)	Contact Material	Contact Finish - Mating	Current Rating (A)	Operating Temperature	Product Status	RoHS Status
0901220126	Molex	C-Grid III 90122	2.54	12	2	6.75	2.90	6.14	Brass	Tin	—	—	Active	ROHS3 Compliant
68405-412HLF	Amphenol ICC (FCI)	BERGSTIK® II	2.54	12	2	5.84	2.41	4.83	Phosphor Bronze	Tin	5	—	Active	RoHS Compliant
79257-112HLF	Amphenol ICC (FCI)	BERGSTIK® II	2.54	12	2	5.84	3.05	4.83	Phosphor Bronze	Gold or Gold, GXT™	3	-65°C ~ 130°C	Active	RoHS Compliant
826634-6	TE Connectivity AMP Connectors	AMPMODU Mod II	2.54	12	2	6.70	3.20	5.56	Brass	Gold	5	-65°C ~ 105°C	Active	RoHS Compliant
929667-04-06-I	3M	929	2.54	12	2	5.97	3.68	5.45	Copper Alloy	Gold	2.5	-40°C ~ 105°C	Active	RoHS Compliant
929838-02-06-RK	3M	929	2.54	12	2	5.97	10.29	5.45	Copper Alloy	Tin	2.5	-40°C ~ 105°C	Active	RoHS Compliant
MTSW-106-09-T-D-275-NA	Samtec Inc.	Flex Stack, MTSW	2.54	12	2	6.99	2.29	5.56	Phosphor Bronze	Tin	3	-55°C ~ 105°C	Active	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts maintain active product status with the exception of 929838-02-06, which is discontinued at DiGi Electronics and should not be selected for new designs. The primary Molex 0901220126 is ROHS3 compliant and carries unlimited moisture sensitivity rating.

For applications requiring RoHS compliance, all substitute parts listed meet RoHS requirements. The Amphenol ICC (FCI) 68405-412HLF and 79257-112HLF offer reduced insulation height compared to the original part. The TE Connectivity 826634-6 provides brass contact material matching the original design with gold plating and higher current rating of 5A. The 3M 929667-04-06-I and 929838-02-06-RK feature extended post lengths suitable for applications requiring deeper board penetration, with the -RK variant offering ROHS3 compliance. The Samtec MTSW-106-09-T-D-275-NA provides cuttable header functionality with ROHS3 compliance and extended operating temperature range to -55°C.

Selection should be based on specific application requirements including contact length, insulation height, current rating, operating temperature range, and compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can I substitute the Molex 0901220126 with any of the listed parts?

A: All listed parts meet the core mechanical and electrical compatibility criteria: 2.54mm pitch, 12 positions in 2 rows, through-hole right-angle mounting, solder termination, and push-pull fastening. However, variations in contact length, insulation height, and current rating must be evaluated against your specific application requirements.

Q: What is the difference between the Amphenol ICC BERGSTIK® II parts?

A: The 68405-412HLF features tin plating on mating contacts with 5A current rating. The 79257-112HLF features gold or gold GXT™ plating with 3A current rating and extended operating temperature range to -65°C to 130°C. Both share identical pitch, position count, and row spacing.

Q: Why do some parts have longer post lengths?

A: Post length determines how far the contact extends into the PCB. The 3M 929838-02-06-RK and 929667-04-06-I feature 10.29mm and 3.68mm post lengths respectively, compared to 2.90mm on the original Molex part. Longer posts are used in applications requiring deeper board penetration or specific stacking configurations.

Q: Are all substitute parts RoHS compliant?

A: All listed active parts are RoHS compliant. The Molex 0901220126 and Samtec MTSW-106-09-T-D-275-NA are ROHS3 compliant. The 929838-02-06 (discontinued) is RoHS non-compliant and should not be used.

Q: What packaging options are available?

A: The Molex 0901220126 is supplied in Tray packaging. Substitute parts are available in Bag (Amphenol ICC), Bulk (TE Connectivity, 3M, Samtec), and Tray packaging depending on the specific part number and supplier.

Q: Which substitute offers the best thermal performance?

A: The Amphenol ICC 79257-112HLF provides the widest operating temperature range at -65°C to 130°C. The Samtec MTSW-106-09-T-D-275-NA extends the lower temperature limit to -55°C with upper limit of 105°C.

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