Molex 0901210923 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0901210923 is an active-status rectangular connector header designed for through-hole, right-angle board-to-board or cable applications. This 3-position connector with 0.100" (2.54mm) pitch and male pin contacts serves general purpose and automotive applications. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility permits equivalent component selection based on matching electrical and mechanical specifications.

Substiute Parts

0901210923

MolexIn Stock: 7880901210923 Datasheet

Current PartRFQ

A2-3PA-2.54DS(71)

Hirose Electric Co LtdIn Stock: 1101A2-3PA-2.54DS(71) Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0901210923 is determined by strict alignment of the following critical parameters:

• Connector type classification (Header)
• Contact type (Male Pin)
• Mating pitch (0.100" / 2.54mm)
• Position count (3 positions)
• Row configuration (1 row)
• Mounting orientation (Through Hole, Right Angle)
• Termination method (Solder)
• Fastening mechanism (Push-Pull)
• Contact finish specifications (Gold mating surface, Tin post)
• Flammability compliance (UL94 V-0)
• RoHS compliance status

The Hirose Electric Co Ltd part A2-3PA-2.54DS(71) meets all critical substitution criteria and is identified as a manufacturer-recommended equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the Molex 0901210923 and Hirose A2-3PA-2.54DS(71) maintain active product status and comply with applicable regulatory requirements. The Molex part carries ROHS3 compliance, while the Hirose substitute meets RoHS compliance. Both components are rated UL94 V-0 for flammability and feature MSL 1 moisture sensitivity classification.

The Hirose substitute provides specified operating temperature range (-55°C ~ 85°C), current rating (3A), and voltage rating (200V), whereas the Molex primary part does not include these electrical specifications in the provided data. Dimensional variations exist in contact lengths and insulation height between the two parts. Selection between these components should be based on specific application requirements, PCB layout constraints, and availability considerations, with verification that dimensional differences do not conflict with mating connector specifications or mechanical clearances in the target application.

Frequently Asked Questions (FAQ)

Q: What makes the Hirose A2-3PA-2.54DS(71) a valid substitute for the Molex 0901210923?

A: Both connectors share identical critical specifications: 3-position, 0.100" (2.54mm) pitch, male pin header configuration with through-hole right-angle mounting, solder termination, push-pull fastening, gold-plated mating contacts, and tin-plated posts. Both meet UL94 V-0 flammability requirements and MSL 1 moisture sensitivity classification. Compliance certifications and active product status support substitution eligibility.

Q: Are there dimensional differences between these connectors?

A: Yes. The Hirose part features a 0.236" (6.00mm) mating contact length compared to the Molex 0.266" (6.75mm), a 0.138" (4.60mm) post length versus Molex 0.114" (2.90mm), and a 0.157" (4.00mm) insulation height versus Molex 0.142" (3.60mm). These variations require verification against mating connector specifications and PCB layout requirements before implementation.

Q: What is the difference in insulation material between these parts?

A: The Molex 0901210923 uses polyester with glass filler, while the Hirose A2-3PA-2.54DS(71) uses polybutylene terephthalate (PBT). Both materials meet UL94 V-0 flammability standards. Material selection may influence mechanical properties and environmental resistance characteristics specific to the application.

Q: Does the Hirose substitute provide electrical ratings?

A: The Hirose part specifies 3A current rating and 200V voltage rating with an operating temperature range of -55°C ~ 85°C. The Molex primary part does not include these electrical specifications in the provided documentation. Applications requiring specific electrical performance parameters should reference the complete datasheets for both components.

Q: What packaging differences exist between these parts?

A: The Molex 0901210923 is supplied in tray packaging, while the Hirose A2-3PA-2.54DS(71) is supplied in bulk packaging. Packaging format may affect inventory management, handling procedures, and cost considerations but does not impact electrical or mechanical compatibility.

Q: Are both parts RoHS compliant?

A: Yes. The Molex 0901210923 is ROHS3 compliant, and the Hirose A2-3PA-2.54DS(71) is RoHS compliant. Both meet applicable lead-free and hazardous substance restrictions for their respective compliance standards.