Molex 0901200932 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Molex 0901200932 is a vertical through-hole rectangular connector header with 12 positions at 0.100" (2.54mm) pitch. This unshrouded, breakaway header is designed for board-to-board or cable connections in automotive and general-purpose applications. The part is Active status and ROHS3 compliant with UL94 V-0 flammability rating. Substitute parts are identified when equivalent electrical and mechanical parameters align with application requirements, enabling component sourcing flexibility and inventory optimization.

Key Parameters

Parameter	Value
Connector Type	Header, Breakaway
Contact Type	Male Pin
Number of Positions	12
Pitch - Mating	0.100" (2.54mm)
Number of Rows	1
Mounting Type	Through Hole
Termination	Solder
Contact Shape	Square
Insulation Material	Polyester, Glass Filled
Operating Temperature	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment of core electrical and mechanical parameters: 12-position configuration, 0.100" (2.54mm) pitch, male pin contact type, through-hole mounting, and solder termination. Substitute parts are grouped into two categories based on connector architecture:

Category A - Standard Headers (Breakaway/Cuttable): Parts maintaining unshrouded header geometry with direct board-to-board or cable connection capability. These include TE Connectivity 1-826629-2, Harwin M20-9731245, M20-9991245, and M20-9991246. These parts preserve the original connector function and form factor.

Category B - Stacked Headers (Spacer Connectors): Samtec Flex Stack ZW series parts (ZW-12-07-G-S-200-055, ZW-12-07-T-S-200-070, ZW-12-07-T-S-200-071, ZW-12-08-G-S-250-160, ZW-12-08-T-S-250-160, ZW-12-15-L-S-225-250) feature integrated stack heights for board-to-board spacing applications. These parts maintain 12-position, 2.54mm pitch configuration but introduce defined stack height geometry.

Substitution within each category is valid when contact finish, insulation material, and operating temperature ranges meet or exceed application requirements.

Parameter Comparison

Parameter	Molex 0901200932	TE Connectivity 1-826629-2	Harwin M20-9731245	Harwin M20-9991245	Harwin M20-9991246	Samtec ZW-12-07-G-S-200-055	Samtec ZW-12-08-T-S-250-160	Samtec ZW-12-15-L-S-225-250
Manufacturer	Molex	TE Connectivity	Harwin Inc.	Harwin Inc.	Harwin Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.
Number of Positions	12	12	12	12	12	12	12	12
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)	0.100" (2.54mm)	0.100" (2.54mm)
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Number of Rows	1	1	1	1	1	1	1	1
Mounting Type	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
Contact Shape	Square	Square	Square	Square	Square	Square	Square	Square
Contact Finish - Mating	Gold	Gold	Gold	Gold	Tin	Gold	Tin	Gold
Contact Material	Brass	Brass	Brass	Brass	Brass	Brass	Brass	Brass
Operating Temperature	-55°C ~ 125°C	-65°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	Not specified	Not specified	Not specified
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	Not specified	Not specified	Not specified
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and ROHS3 compliance, ensuring regulatory alignment with the original Molex 0901200932. Selection between standard headers (Category A) and stacked headers (Category B) depends on application geometry requirements.

For direct form-factor replacement: TE Connectivity 1-826629-2 provides gold-plated mating contacts with equivalent 12-position, 2.54mm pitch configuration. Operating temperature range of -65°C to 105°C covers the lower end of the original specification. Harwin M20 series parts (M20-9731245, M20-9991245, M20-9991246) offer cuttable header geometry with 3A per-contact current rating and -40°C to 105°C operating range. M20-9991246 features tin mating finish, while M20-9731245 and M20-9991245 provide gold finish.

For board-to-board spacing applications: Samtec Flex Stack ZW series parts integrate defined stack heights (0.200" to 0.250") for controlled board separation. ZW-12-08-T-S-250-160 and ZW-12-08-G-S-250-160 provide 0.250" stack height with 0.160" tail length. ZW-12-15-L-S-225-250 offers 0.225" stack height with extended 0.250" tail. Contact finish selection between gold (ZW-12-07-G-S-200-055, ZW-12-08-G-S-250-160, ZW-12-15-L-S-225-250) and tin (ZW-12-07-T-S-200-070, ZW-12-07-T-S-200-071, ZW-12-08-T-S-250-160) accommodates solderability and corrosion resistance requirements.

Frequently Asked Questions (FAQ)

Q: Can Samtec Flex Stack ZW series parts directly replace the Molex 0901200932 in existing PCB designs?

A: Samtec ZW series parts maintain 12-position, 2.54mm pitch, and through-hole solder termination compatibility. However, integrated stack heights (0.200" to 0.250") alter board-to-board spacing geometry. Direct replacement requires PCB layout verification to confirm stack height accommodation. Standard headers (TE Connectivity 1-826629-2 or Harwin M20 series) provide closer form-factor alignment for direct substitution.

Q: What is the difference between gold and tin contact finishes in substitute parts?

A: Gold-plated mating contacts (Molex 0901200932, TE Connectivity 1-826629-2, Harwin M20-9731245, M20-9991245, Samtec ZW-12-07-G-S-200-055, ZW-12-08-G-S-250-160, ZW-12-15-L-S-225-250) provide superior corrosion resistance and lower contact resistance. Tin-plated contacts (Harwin M20-9991246, Samtec ZW-12-07-T-S-200-070, ZW-12-07-T-S-200-071, ZW-12-08-T-S-250-160) offer cost efficiency and adequate performance in non-corrosive environments. Selection depends on application environment and reliability requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant certification, matching the original Molex 0901200932 regulatory status. All parts also maintain Moisture Sensitivity Level 1 (Unlimited), eliminating moisture-related handling constraints.

Q: What operating temperature considerations apply when selecting substitutes?

A: The original Molex 0901200932 operates from -55°C to 125°C. TE Connectivity 1-826629-2 covers -65°C to 105°C, while Harwin M20 series parts operate -40°C to 105°C. Samtec ZW series operating temperature ranges are not specified in provided data. For applications requiring the full -55°C to 125°C range, TE Connectivity 1-826629-2 provides the closest temperature envelope. Harwin and Samtec parts are suitable for applications within -40°C to 105°C limits.

Q: How do contact length specifications affect mechanical compatibility?

A: Contact length variations between parts influence mating depth and overall connector height. Molex 0901200932 features 0.266" mating contact length and 0.478" overall contact length. TE Connectivity 1-826629-2 provides 0.264" mating and 0.500" overall length. Harwin M20 series parts range from 0.240" to 0.276" mating contact length. Samtec ZW series parts feature shorter mating contacts (0.120" to 0.175") due to integrated stack height design. Verify mating receptacle compatibility before substitution.

Q: What inventory considerations apply to substitute part selection?

A: Current inventory levels are: Molex 0901200932 (690 pcs), TE Connectivity 1-826629-2 (8378 pcs), Harwin M20-9731245 (2121 pcs), Harwin M20-9991245 (1388 pcs), Harwin M20-9991246 (2542 pcs), Samtec ZW-12-07-G-S-200-055 (1137 pcs), Samtec ZW-12-07-T-S-200-070 (826 pcs), Samtec ZW-12-07-T-S-200-071 (947 pcs), Samtec ZW-12-08-G-S-250-160 (988 pcs), Samtec ZW-12-08-T-S-250-160 (1058 pcs), Samtec ZW-12-15-L-S-225-250 (921 pcs). TE Connectivity 1-826629-2 offers highest availability for immediate sourcing needs.

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