M50-3103045 Equivalent & Substitute Parts

Part Overview

The M50-3103045 is a 60-position receptacle connector manufactured by Harwin Inc. as part of the Archer M50 series. This surface mount connector features 0.050" (1.27mm) pitch, gold-plated contacts, and is designed for board-to-board or cable applications across general purpose, medical, and telecommunications sectors. The product is currently obsolete, making identification of compatible substitute components essential for ongoing system support and procurement.

Substiute Parts

M50-3103045

Harwin Inc.In Stock: 995M50-3103045 Datasheet

Current PartRFQ

20021321-00060T4LF

Amphenol ICC (FCI)In Stock: 186220021321-00060T4LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 20021321-00060T4LF (Amphenol ICC/FCI Minitek127® series) qualifies as a direct equivalent based on the following critical parameters:

Matching Parameters:

• Connector type: Receptacle with female socket contacts
• Position count: 60 positions
• Pitch specification: 0.050" (1.27mm) mating pitch
• Row configuration: 2 rows with 0.050" (1.27mm) row spacing
• Mounting technology: Surface mount with solder termination
• Fastening mechanism: Push-pull
• Contact material: Phosphor bronze
• Operating temperature range: -40°C ~ 105°C
• Flammability rating: UL94 V-0
• Moisture sensitivity: MSL 1 (Unlimited)

These parameters define the mechanical and electrical compatibility envelope for board-to-board connector substitution in this category.

Parameter Comparison

Engineering Selection Recommendations

The 20021321-00060T4LF serves as a direct functional substitute for the obsolete M50-3103045. The substitute part maintains active product status with Amphenol ICC, ensuring ongoing availability and supply chain continuity. Both components meet identical mechanical interface requirements and thermal specifications. The substitute part carries RoHS compliance certification, satisfying regulatory requirements for new designs and production runs. Contact finish specifications differ slightly (gold flash on mating contacts for the original versus 10.0µin gold on the substitute), but both meet the electrical and mechanical requirements for the 0.050" pitch connector category. Insulation material differs (LCP versus plastic), though both materials achieve UL94 V-0 flammability ratings and MSL 1 moisture sensitivity levels.

Frequently Asked Questions (FAQ)

Q: Can the 20021321-00060T4LF directly replace the M50-3103045 in existing designs?

A: Yes. Both connectors share identical mating pitch (0.050"), position count (60), row configuration (2 rows), mounting type (surface mount), and fastening mechanism (push-pull). The mechanical footprint and electrical interface are compatible.

Q: What are the key differences between these two parts?

A: The primary differences are insulation material (LCP versus plastic), contact finish thickness specifications on mating surfaces (flash versus 10.0µin), and post contact finish (gold versus tin). These differences do not affect mechanical compatibility or electrical performance in standard applications.

Q: Are there any compliance or certification differences?

A: Both parts meet UL94 V-0 flammability requirements and MSL 1 moisture sensitivity levels. The substitute part carries active RoHS compliance, while the original is ROHS3 compliant. Both are REACH unaffected and carry EAR99 ECCN classification.

Q: What is the packaging difference?

A: The M50-3103045 packaging specification is not provided. The 20021321-00060T4LF is supplied in tube packaging.

Q: Are current and voltage ratings specified for both parts?

A: The M50-3103045 specifies 1A current rating and 250V voltage rating. The 20021321-00060T4LF does not provide these specifications in the available data. Verify electrical requirements against your application specifications before final selection.