Molex 0901200777 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0901200777 is an active-status rectangular connector header designed for through-hole mounting applications. This 17-position, single-row connector operates across the automotive and general-purpose markets with a 0.100" (2.54mm) pitch standard. The connector features unshrouded male pin contacts with gold-plated mating surfaces and tin-plated posts, suitable for board-to-board or cable interconnections. Substitute parts are identified to address application requirements where alternative position counts, contact materials, or operating temperature ranges may be necessary while maintaining core electrical and mechanical compatibility.

Substiute Parts

0901200777

MolexIn Stock: 11020901200777 Datasheet

Current PartRFQ

9-146280-0

TE Connectivity AMP ConnectorsIn Stock: 29289-146280-0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0901200777 is determined by the following core parameters:

• Pitch - Mating: 0.100" (2.54mm) standard maintained across all substitutes
• Connector Type: Header, Breakaway configuration required
• Contact Type: Male Pin contacts required
• Mounting Type: Through Hole solder termination required
• Contact Finish: Gold-plated mating surfaces with tin-plated posts required
• Material Flammability: UL94 V-0 rating required
• RoHS Compliance: ROHS3 or equivalent compliance required

The substitute part TE Connectivity AMP Connectors 9-146280-0 meets these core substitution criteria. Variations in position count (40 vs. 17), contact material composition (Copper Alloy vs. Brass), insulation material (LCP vs. Polyester Glass Filled), and operating temperature range (-65°C ~ 105°C vs. -55°C ~ 125°C) represent application-specific differences that do not preclude substitution when position requirements and thermal operating conditions align with the target application.

Parameter Comparison

Engineering Selection Recommendations

Both the Molex 0901200777 and TE Connectivity 9-146280-0 maintain active product status with full RoHS and REACH compliance. Selection between these parts depends on application-specific requirements:

The Molex 0901200777 is appropriate for applications requiring exactly 17 positions with an extended upper operating temperature limit of 125°C. The Polyester Glass Filled insulation material and Brass contact composition provide the specified thermal and mechanical characteristics.

The TE Connectivity 9-146280-0 is appropriate for applications requiring 40 positions with a lower upper operating temperature limit of 105°C. The Liquid Crystal Polymer insulation material and Copper Alloy contact composition provide alternative material properties. This part includes a specified current rating of 3A.

Both parts share identical pitch, contact finish specifications, flammability ratings, and moisture sensitivity classifications, ensuring mechanical and electrical compatibility within their respective position and temperature operating ranges.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 9-146280-0 directly replace the Molex 0901200777 in all applications?

A: Direct replacement is possible only when the application accommodates the 40-position configuration and operates within the -65°C to 105°C temperature range. The 17-position Molex part cannot be substituted with the 40-position TE Connectivity part in space-constrained designs or applications requiring exactly 17 positions.

Q: What are the key mechanical compatibility factors between these connectors?

A: Both connectors share 0.100" (2.54mm) pitch spacing, single-row configuration, through-hole solder termination, and square contact geometry. These parameters ensure mechanical interchangeability at the board interface level when position count requirements are met.

Q: How do the contact material differences affect performance?

A: The Molex part uses Brass contacts while the TE Connectivity part uses Copper Alloy contacts. Both materials are plated identically with gold mating surfaces (15.0µin thickness) and tin posts (100.0µin to 118.1µin thickness). Material composition differences do not affect electrical performance within the specified operating parameters.

Q: Are there thermal operating range considerations for substitution?

A: The Molex 0901200777 operates from -55°C to 125°C, while the TE Connectivity 9-146280-0 operates from -65°C to 105°C. Applications requiring operation above 105°C must use the Molex part. Applications requiring operation below -55°C can use either part, though the TE Connectivity part provides extended low-temperature capability.

Q: Do packaging differences affect component selection?

A: The Molex part is supplied in Tray packaging while the TE Connectivity part is supplied in Bulk packaging. Packaging format does not affect electrical or mechanical performance and is determined by procurement and inventory management requirements.

Q: Are both parts suitable for automotive applications?

A: The Molex 0901200777 explicitly lists automotive applications in its specification. The TE Connectivity 9-146280-0 does not specify applications in the provided data. Automotive application suitability for the TE Connectivity part requires verification against specific automotive qualification requirements.