Equivalent & Substitute Parts for Molex 0901220137

Part Overview

The Molex 0901220137 is a rectangular connector header featuring a right-angle, through-hole configuration with 34 positions at 2.54mm pitch. This connector is designed for board-to-board or cable applications with solder termination and push-pull fastening. The part is currently active in production with 818 units in stock.

Substitute parts become necessary when the primary part experiences supply constraints, extended lead times, or when design requirements align with alternative connector series that meet the same electrical and mechanical specifications.

Substiute Parts

0901220137

MolexIn Stock: 9040901220137 Datasheet

Current PartRFQ

1-826634-7

TE Connectivity AMP ConnectorsIn Stock: 42151-826634-7 Datasheet

MFR RecommendedRFQ

79257-634

Amphenol ICC (FCI)In Stock: 116679257-634 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0901220137 is determined by the following critical parameters:

• 34-position configuration with 2-row layout
• 0.100" (2.54mm) mating pitch and row spacing
• Right-angle, through-hole mounting
• Solder termination with push-pull fastening
• Male pin contact type
• UL94 V-0 flammability rating
• ROHS3 compliance

The substitute parts listed below maintain these core specifications, ensuring mechanical and electrical compatibility within the same application space. Variations in contact finish, insulation material, and contact dimensions remain within acceptable tolerances for standard board-to-board interconnect applications.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 1-826634-7 is the primary substitute for the Molex 0901220137. Both parts maintain active product status, ROHS3 compliance, and identical core mechanical specifications. The TE part offers higher current rating (5A versus unspecified) and extended operating temperature range (-65°C to 105°C). Gold plating on mating contacts provides enhanced corrosion resistance compared to tin finish on the Molex part.

The Amphenol ICC 79257-634 meets all mechanical and electrical substitution criteria but carries obsolete product status and RoHS non-compliance. This part should be considered only when existing inventory must be utilized or when legacy system compatibility is required. The higher operating temperature range (-65°C to 130°C) and phosphor bronze contact material offer specific advantages in demanding thermal environments, but the 3A current rating is lower than the TE alternative.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 1-826634-7 be used as a direct replacement for the Molex 0901220137?

A: Yes. Both connectors share identical mating pitch (2.54mm), position count (34), row configuration (2), mounting type (right-angle through-hole), and termination method (solder). Mechanical compatibility is confirmed. The TE part includes higher current rating and extended temperature range, making it suitable for equivalent or more demanding applications.

Q: What are the differences in contact finish between these parts?

A: The Molex 0901220137 uses tin plating on mating contacts, while the TE Connectivity 1-826634-7 uses gold plating. Gold provides superior corrosion resistance and lower contact resistance, particularly in high-reliability or high-cycle mating applications. Tin plating is adequate for standard board-to-board interconnect use.

Q: Why is the Amphenol ICC 79257-634 listed as obsolete?

A: The Amphenol ICC 79257-634 carries obsolete product status, indicating it is no longer in active production. While existing inventory may be available, future procurement cannot be guaranteed. This part should be selected only when legacy system compatibility is mandatory or when existing stock must be consumed.

Q: Are there compliance differences between the substitute parts?

A: The Molex 0901220137 and TE Connectivity 1-826634-7 are both ROHS3 compliant. The Amphenol ICC 79257-634 is RoHS non-compliant. For applications requiring RoHS compliance, the Amphenol part is not suitable.

Q: What is the significance of the different insulation materials?

A: The Molex part uses polyester with glass filling, while the TE part uses polybutylene terephthalate (PBT). Both materials meet UL94 V-0 flammability requirements. PBT offers improved chemical resistance and dimensional stability, while glass-filled polyester provides good mechanical strength. Material selection does not affect substitution eligibility for standard applications.

Q: Can these connectors be used interchangeably in existing PCB designs?

A: Yes, provided the PCB footprint accommodates the mechanical dimensions of the substitute part. Contact length variations (mating and post) are minor and remain within standard tolerance ranges for 2.54mm pitch connectors. Verify insulation height and overall connector profile against PCB layout constraints before final selection.