Equivalent & Substitute Parts for Molex 0901310776

Part Overview

The Molex 0901310776 is an active rectangular connector header designed for through-hole mounting applications. This 32-position, 2-row connector with 0.100" (2.54mm) pitch serves board-to-cable and general-purpose connectivity requirements. The C-Grid III 90131 series connector features male pins with gold-plated mating contacts and tin-plated posts, suitable for automotive and general industrial applications. Substitute parts are identified to provide alternative sourcing options while maintaining electrical and mechanical compatibility within the specified parameter constraints.

Substiute Parts

0901310776

MolexIn Stock: 8740901310776 Datasheet

Current PartRFQ

M20-9721645

Harwin Inc.In Stock: 1903M20-9721645 Datasheet

MFR RecommendedRFQ

M20-9981645

Harwin Inc.In Stock: 2111M20-9981645 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0901310776 is determined by strict adherence to the following critical parameters:

• Pitch - Mating: 0.100" (2.54mm) — exact match required
• Number of Positions: 32 — exact match required
• Number of Rows: 2 — exact match required
• Row Spacing - Mating: 0.100" (2.54mm) — exact match required
• Contact Type: Male Pin — exact match required
• Mounting Type: Through Hole — exact match required
• Termination: Solder — exact match required
• Contact Material: Brass — exact match required
• Contact Finish - Mating: Gold — exact match required
• Material Flammability Rating: UL94 V-0 — exact match required
• RoHS Status: ROHS3 Compliant — exact match required
• Moisture Sensitivity Level: 1 (Unlimited) — exact match required

The identified substitute parts (Harwin M20-9721645 and M20-9981645) satisfy all critical substitution criteria. Variations in insulation material composition (Polyamide PA6T/Nylon 6T versus Polyester Glass Filled), contact length specifications, and connector style classification (Cuttable versus Breakaway) remain within acceptable tolerance ranges for functional equivalence in board-to-cable and board-to-board applications.

Parameter Comparison

Engineering Selection Recommendations

All three connector models maintain active product status and full ROHS3 compliance with REACH unaffected designation. The Molex 0901310776 and both Harwin substitutes (M20-9721645 and M20-9981645) share identical critical electrical and mechanical specifications: 32-position, 2-row configuration with 0.100" (2.54mm) pitch, male pin contacts, gold-plated mating surfaces, and UL94 V-0 flammability rating.

Selection between the Harwin M20-9721645 and M20-9981645 depends on contact length requirements. The M20-9721645 provides extended mating contact length (0.276" / 7.00mm) suitable for deeper mating depth applications, while the M20-9981645 offers reduced overall contact length (0.460" / 11.68mm) for space-constrained designs. Both Harwin parts specify 3A per contact current rating and operating temperature range of -40°C to 105°C, parameters not provided for the original Molex part.

Frequently Asked Questions (FAQ)

Q: Can Harwin M20-9721645 and M20-9981645 be used interchangeably with Molex 0901310776?

A: Both Harwin parts meet all critical substitution parameters: identical pitch (0.100" / 2.54mm), position count (32), row configuration (2), contact type (male pin), mounting method (through hole), and termination (solder). Differences in contact length and insulation material do not affect functional compatibility in standard board-to-cable applications. Selection should be based on specific mating depth and thermal requirements of the target application.

Q: What is the difference between Harwin M20-9721645 and M20-9981645?

A: The primary distinction is contact length. M20-9721645 features mating contact length of 0.276" (7.00mm) and overall contact length of 0.496" (12.60mm), while M20-9981645 provides shorter mating contact length of 0.240" (6.10mm) and overall contact length of 0.460" (11.68mm). Both maintain identical pitch, position count, row spacing, and electrical specifications. Choose M20-9721645 for deeper mating applications and M20-9981645 for compact designs.

Q: Are there packaging differences between the main part and substitutes?

A: The Molex 0901310776 is supplied in Tray packaging, while both Harwin substitutes (M20-9721645 and M20-9981645) are supplied in Bulk packaging. This distinction affects handling and storage procedures but does not impact electrical or mechanical performance.

Q: Do the Harwin substitutes support the same operating temperature range as the Molex part?

A: The Molex 0901310776 does not specify an operating temperature range. Both Harwin substitutes specify -40°C to 105°C operating temperature range, which covers standard industrial and automotive applications. Verify that this range meets your specific application requirements.

Q: What is the current rating for these connectors?

A: The Molex 0901310776 does not specify a current rating. Both Harwin substitutes (M20-9721645 and M20-9981645) are rated for 3A per contact. Confirm that 3A per contact capacity is sufficient for your circuit requirements.

Q: Are all three connectors RoHS compliant?

A: Yes. The Molex 0901310776, Harwin M20-9721645, and Harwin M20-9981645 are all ROHS3 compliant with REACH unaffected status, suitable for applications requiring environmental compliance certification.