M20-8773142 Equivalent & Substitute Parts

Part Overview

The M20-8773142 is a surface mount rectangular connector header manufactured by Harwin Inc., featuring 31 positions at 0.100" (2.54mm) pitch. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production support. The connector is designed for board-to-board or cable applications with unshrouded, cuttable header configuration and solder termination.

Substiute Parts

M20-8773142

Harwin Inc.In Stock: 785M20-8773142 Datasheet

Current PartRFQ

GBC31SABN-M30

Sullins Connector SolutionsIn Stock: 1103GBC31SABN-M30 Datasheet

MFR RecommendedRFQ

TSM-131-01-F-SV

Samtec Inc.In Stock: 943TSM-131-01-F-SV Datasheet

MFR RecommendedRFQ

TSM-131-01-LM-SV

Samtec Inc.In Stock: 865TSM-131-01-LM-SV Datasheet

MFR RecommendedRFQ

TSM-131-01-S-SV-LC

Samtec Inc.In Stock: 951TSM-131-01-S-SV-LC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the M20-8773142 is determined by the following critical parameters:

Core Electrical & Mechanical Compatibility:

• Pitch - Mating: 0.100" (2.54mm)
• Number of Positions: 31
• Number of Rows: 1
• Contact Type: Male Pin
• Mounting Type: Surface Mount
• Termination: Solder
• Connector Style: Board to Board or Cable
• Shrouding: Unshrouded
• Contact Shape: Square
• Contact Finish - Mating: Gold
• Contact Finish - Post: Tin
• Insulation Height: 0.100" (2.54mm)
• Material Flammability Rating: UL94 V-0
• Insulation Color: Black
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variations:

• Connector Type: Header (Cuttable or Breakaway acceptable)
• Contact Material: Brass or Phosphor Bronze
• Insulation Material: Polyamide (PA6T/PA9T) or Liquid Crystal Polymer (LCP)
• Operating Temperature Range: May exceed the original -40°C ~ 105°C specification
• Contact Length - Mating: Minor variations within 0.228" ± tolerance acceptable
• Contact Finish Thickness - Mating: Variations in plating thickness acceptable

All substitute parts listed maintain electrical and mechanical compatibility with the original M20-8773142 specification while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

All four substitute parts are functionally equivalent to the M20-8773142 and maintain compliance with ROHS3 and UL94 V-0 flammability requirements. Selection should be based on the following criteria:

GBC31SABN-M30 (Sullins Connector Solutions): Offers the widest operating temperature range (-65°C ~ 150°C) and highest inventory availability (1078 pcs). Suitable for applications requiring extended temperature performance. Breakaway connector type provides alternative mechanical configuration while maintaining electrical compatibility.

TSM-131-01-F-SV (Samtec Inc.): Standard cuttable header configuration with Liquid Crystal Polymer insulation material. Samtec TSM series provides consistent performance across multiple variants. Suitable for general-purpose applications.

TSM-131-01-LM-SV (Samtec Inc.): Identical electrical and mechanical specifications to TSM-131-01-F-SV with tube packaging. Tube packaging may provide handling and storage advantages for production environments requiring organized component management.

TSM-131-01-S-SV-LC (Samtec Inc.): Includes board lock feature for enhanced mechanical retention. Recommended for applications requiring additional mechanical security or vibration resistance. Liquid Crystal Polymer insulation provides improved dimensional stability.

All substitute parts maintain active product status, ensuring long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for the M20-8773142?

A: Yes. All four substitute parts maintain identical pitch (0.100"), position count (31), row configuration (1), contact type (male pin), mounting method (surface mount), and termination (solder). They are electrically and mechanically compatible with the original M20-8773142 specification.

Q: What is the difference between "Cuttable" and "Breakaway" connector types?

A: Both connector types allow individual position separation. Cuttable headers are separated by cutting, while breakaway headers feature pre-scored sections for manual separation. Both configurations are functionally equivalent for board-to-board or cable applications.

Q: Why do some substitute parts have higher operating temperature ranges?

A: Substitute parts use different insulation materials (Liquid Crystal Polymer vs. Polyamide) and contact materials (Phosphor Bronze vs. Brass), which provide enhanced thermal performance. These materials maintain electrical and mechanical properties across wider temperature ranges while remaining compatible with the original application requirements.

Q: Does the contact material change (Brass to Phosphor Bronze) affect compatibility?

A: No. Both materials provide equivalent electrical conductivity and mechanical strength for this connector class. Phosphor Bronze offers improved spring characteristics and durability, making it a suitable alternative material for the same functional application.

Q: What is the significance of the packaging differences (Bulk vs. Tube)?

A: Packaging affects handling, storage, and production workflow but does not impact electrical or mechanical performance. Bulk packaging is suitable for high-volume assembly operations, while tube packaging provides organized component management for lower-volume or mixed-assembly environments.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 Compliant certification, maintaining regulatory compliance with the original M20-8773142 specification.

Q: What is Moisture Sensitivity Level (MSL) 1?

A: MSL 1 indicates unlimited shelf life without moisture control requirements. All parts listed, including the original M20-8773142, carry MSL 1 rating, eliminating moisture-related handling constraints during storage and assembly.