M20-8773442 Equivalent & Substitute Parts

Part Overview

The M20-8773442 is a surface mount rectangular connector header manufactured by Harwin Inc., featuring 34 positions at 0.100" (2.54mm) pitch. This connector is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The part is designed for board-to-board or cable connections with solder termination and push-pull fastening.

Substiute Parts

M20-8773442

Harwin Inc.In Stock: 793M20-8773442 Datasheet

Current PartRFQ

GBC34SABN-M30

Sullins Connector SolutionsIn Stock: 1018GBC34SABN-M30 Datasheet

MFR RecommendedRFQ

TSM-134-01-F-SV

Samtec Inc.In Stock: 942TSM-134-01-F-SV Datasheet

MFR RecommendedRFQ

TSM-134-01-L-SV-P

Samtec Inc.In Stock: 919TSM-134-01-L-SV-P Datasheet

MFR RecommendedRFQ

TSM-134-01-S-SV-LC

Samtec Inc.In Stock: 849TSM-134-01-S-SV-LC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the M20-8773442 is determined by the following critical parameters:

Core Electrical & Mechanical Compatibility:

• Pitch - Mating: 0.100" (2.54mm) — must match exactly
• Number of Positions: 34 — must match exactly
• Number of Rows: 1 — must match exactly
• Contact Type: Male Pin — must match exactly
• Mounting Type: Surface Mount — must match exactly
• Termination: Solder — must match exactly
• Fastening Type: Push-Pull — must match exactly
• Connector Type: Header (Cuttable or Breakaway acceptable)
• Style: Board to Board or Cable — must match exactly
• Insulation Height: 0.100" (2.54mm) — must match exactly
• Contact Shape: Square — must match exactly
• Contact Finish - Mating: Gold — must match exactly
• Contact Finish - Post: Tin — must match exactly
• Material Flammability Rating: UL94 V-0 — must match exactly
• Insulation Color: Black — must match exactly
• RoHS Status: ROHS3 Compliant — must match exactly
• Moisture Sensitivity Level: 1 (Unlimited) — must match exactly

Acceptable Variations:

• Contact Material: Brass or Phosphor Bronze acceptable
• Insulation Material: Polyamide (PA6T/PA9T) or Liquid Crystal Polymer (LCP) acceptable
• Operating Temperature: May exceed original range
• Contact Length - Mating: Minor variations (0.228" to 0.230") acceptable
• Contact Finish Thickness - Mating: Variations acceptable within specification
• Connector Type: Cuttable or Breakaway both acceptable

All four substitute parts meet these criteria and are classified as active products with current availability.

Parameter Comparison

Engineering Selection Recommendations

GBC34SABN-M30 (Sullins Connector Solutions) This substitute offers the widest operating temperature range (-65°C ~ 150°C) and is classified as active with high inventory availability. It features breakaway connector type with phosphor bronze contacts and polyamide insulation material. All compliance certifications match the original part.

TSM-134-01-F-SV (Samtec Inc.) This option provides cuttable connector type matching the original M20-8773442 configuration. It features liquid crystal polymer insulation material with phosphor bronze contacts. Operating temperature range is -55°C ~ 125°C. Active product status with 898 units in stock.

TSM-134-01-L-SV-P (Samtec Inc.) This variant includes pick-and-place feature designation and liquid crystal polymer insulation. Cuttable connector type with phosphor bronze contacts. Operating temperature range is -55°C ~ 125°C. Active product status with 810 units in stock.

TSM-134-01-S-SV-LC (Samtec Inc.) This option includes board lock feature and liquid crystal polymer insulation material. Cuttable connector type with phosphor bronze contacts. Operating temperature range is -55°C ~ 125°C. Active product status with 811 units in stock.

All four substitute parts maintain ROHS3 compliance, UL94 V-0 flammability rating, and MSL 1 moisture sensitivity level. Selection should be based on specific application requirements regarding operating temperature range, connector breakaway versus cuttable preference, and feature requirements (pick-and-place, board lock).

Frequently Asked Questions (FAQ)

Q: Can GBC34SABN-M30 be used as a direct replacement for M20-8773442? A: Yes. Both parts share identical pitch (0.100"), position count (34), row configuration (1), mounting type (surface mount), termination (solder), and fastening type (push-pull). Contact geometry, finish specifications, and compliance certifications are equivalent. The GBC34SABN-M30 offers extended operating temperature range (-65°C ~ 150°C versus -40°C ~ 105°C).

Q: What is the difference between the Samtec TSM-134 variants? A: All three Samtec variants (TSM-134-01-F-SV, TSM-134-01-L-SV-P, TSM-134-01-S-SV-LC) share core electrical and mechanical specifications. Differences include: TSM-134-01-L-SV-P includes pick-and-place feature; TSM-134-01-S-SV-LC includes board lock feature. Contact finish thickness varies: 3.00µin, 10.0µin, and 30.0µin respectively.

Q: Are there any compatibility concerns with insulation material differences? A: No. The original M20-8773442 uses polyamide (PA6T) insulation. Substitute parts use either polyamide (PA9T) or liquid crystal polymer (LCP). All materials meet UL94 V-0 flammability requirements and maintain equivalent electrical and mechanical performance for this connector category.

Q: Does contact material change from brass to phosphor bronze affect performance? A: No. Both brass and phosphor bronze contacts are acceptable for this connector category. All substitute parts maintain gold mating finish and tin post finish. Contact material differences do not affect electrical conductivity or mechanical engagement characteristics for 0.100" pitch headers.

Q: Which substitute part has the best availability? A: GBC34SABN-M30 (Sullins) has the highest inventory with 969 units in stock, followed by TSM-134-01-F-SV (Samtec) with 898 units. All four substitutes are classified as active products with current manufacturing support.

Q: Can these parts be used in applications requiring the full -40°C ~ 105°C temperature range of the original? A: Yes. All substitute parts exceed or match the original operating temperature range. GBC34SABN-M30 supports -65°C ~ 150°C; Samtec variants support -55°C ~ 125°C. All are suitable for applications within the original -40°C ~ 105°C specification.