M50-3124145 Equivalent & Substitute Parts

Part Overview

The M50-3124145 is an 82-position receptacle connector from Harwin Inc.'s Archer M50 series, designed for board-to-board or cable applications with 0.050" (1.27mm) pitch spacing. This surface mount connector features gold-plated contacts, push-pull fastening, and operates across -40°C to 105°C. The part is currently obsolete, making equivalent substitutes necessary for ongoing design support and procurement.

Substiute Parts

M50-3124145

Harwin Inc.In Stock: 922M50-3124145 Datasheet

Current PartRFQ

M50-3122545

Harwin Inc.In Stock: 3329M50-3122545 Datasheet

MFR RecommendedRFQ

FLE-141-01-G-DV

Samtec Inc.In Stock: 947FLE-141-01-G-DV Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the M50-3124145 is determined by the following critical parameters:

• Connector Type & Contact Configuration: Receptacle with female socket contacts
• Position Count & Row Configuration: 82 positions arranged in 2 rows
• Pitch Specification: 0.050" (1.27mm) mating pitch with 0.050" row spacing
• Mounting Technology: Surface mount with solder termination
• Contact Material & Finish: Gold-plated phosphor bronze contacts
• Fastening Mechanism: Push-pull fastening type
• Insulation Material: Liquid Crystal Polymer (LCP)
• Compliance: ROHS3 compliant

Two substitute parts meet these criteria with documented compatibility:

1. M50-3122545 (Harwin Inc.) - Same series, reduced position count (50 positions)
2. FLE-141-01-G-DV (Samtec Inc.) - Cross-manufacturer equivalent, identical position count (82 positions)

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (82-Position Requirement):

FLE-141-01-G-DV is the primary substitute for M50-3124145. Both connectors maintain identical position counts, pitch specifications, and row configurations. FLE-141-01-G-DV is active in production with higher current rating (2A per contact vs. 1A) and extended operating temperature range (-55°C ~ 125°C vs. -40°C ~ 105°C). Both parts are ROHS3 compliant with MSL 1 rating.

For Reduced Position Count Applications (50-Position Requirement):

M50-3122545 remains within the Harwin Archer M50 series with identical pitch and row spacing. This part is active in production and maintains the same operating temperature range and current rating as the original M50-3124145. Selection of this part requires circuit redesign to accommodate 50 positions instead of 82.

Both substitutes are ROHS3 compliant and carry REACH Unaffected status, meeting regulatory requirements equivalent to the original part.

Frequently Asked Questions (FAQ)

Q: Can FLE-141-01-G-DV directly replace M50-3124145 without PCB redesign?

A: Yes. FLE-141-01-G-DV maintains the same 82-position count, 0.050" pitch, 2-row configuration, and surface mount footprint as M50-3124145. No PCB layout changes are required for mechanical and electrical compatibility.

Q: What is the difference between M50-3122545 and M50-3124145?

A: M50-3122545 has 50 positions versus 82 positions in M50-3124145. Both share identical pitch (0.050"), row spacing (0.050"), mounting type (surface mount), and operating temperature range (-40°C ~ 105°C). Selection of M50-3122545 requires circuit redesign to use only 50 signal connections.

Q: Does FLE-141-01-G-DV have better performance specifications?

A: FLE-141-01-G-DV provides higher current rating (2A per contact vs. 1A) and extended operating temperature range (-55°C ~ 125°C vs. -40°C ~ 105°C). Contact finish thickness on mating surfaces is 10.0µin (0.25µm) compared to flash plating on M50-3124145. These specifications are compatible with applications designed for M50-3124145.

Q: Are all three connectors RoHS compliant?

A: Yes. M50-3124145, M50-3122545, and FLE-141-01-G-DV are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: What packaging is available for substitute parts?

A: M50-3122545 is supplied in tube packaging. FLE-141-01-G-DV is supplied in bulk packaging. Original M50-3124145 packaging specification was not provided.