TSM-108-01-S-SV-LC-TR Equivalent & Substitute Parts

Part Overview

The TSM-108-01-S-SV-LC-TR is a surface mount rectangular connector header manufactured by Samtec Inc. in the TSM series. This 8-position, 0.100" (2.54mm) pitch connector is designed for board-to-board or cable applications with solder termination and push-pull fastening. The part is currently active in production with 703 units in stock. Equivalent parts are identified when design requirements necessitate alternative sourcing, inventory constraints, or specific manufacturing preferences while maintaining electrical and mechanical compatibility.

Substiute Parts

TSM-108-01-S-SV-LC-TR

Samtec Inc.In Stock: 719TSM-108-01-S-SV-LC-TR Datasheet

Current PartRFQ

M20-8770842

Harwin Inc.In Stock: 11828M20-8770842 Datasheet

SimilarRFQ

M20-8770846

Harwin Inc.In Stock: 2671M20-8770846 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TSM-108-01-S-SV-LC-TR are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Primary Matching Criteria:

• 8-position, single-row configuration
• 0.100" (2.54mm) mating pitch
• Surface mount technology
• Solder termination
• Push-pull fastening mechanism
• Unshrouded header design
• Square contact geometry
• Board-to-board or cable application capability
• UL94 V-0 flammability rating
• ROHS3 compliance
• MSL 1 rating

Allowable Variations:

• Insulation material: LCP or Polyamide (PA6T/Nylon 6T)
• Contact finish on mating surface: Gold or Tin
• Contact material: Phosphor Bronze or Brass
• Operating temperature range: Samtec -55°C to 125°C or Harwin -40°C to 105°C
• Contact length - mating: 0.228" to 0.230" (5.80mm to 5.84mm)
• Packaging format: Tape & Reel or Bulk

The M20-8770842 and M20-8770846 from Harwin Inc. meet all primary matching criteria and are therefore qualified as direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

Both M20-8770842 and M20-8770846 are qualified substitutes for the TSM-108-01-S-SV-LC-TR based on active product status and full ROHS3 compliance with MSL 1 rating.

M20-8770842 Selection Criteria:

• Gold-plated mating contacts match the original TSM specification
• Brass contact material provides equivalent performance to phosphor bronze
• Polyamide insulation material is acceptable for board-to-board applications
• Operating temperature range of -40°C to 105°C is suitable for most commercial and industrial applications
• Higher inventory availability (11,805 units) supports supply chain continuity

M20-8770846 Selection Criteria:

• Tin-plated mating contacts provide cost optimization while maintaining solder compatibility
• Brass contact material and polyamide insulation match M20-8770842 specifications
• Operating temperature range of -40°C to 105°C applies the same thermal constraints
• Bulk packaging format may be preferred for high-volume production runs

Temperature Consideration: Applications requiring the full -55°C to 125°C operating range of the TSM-108-01-S-SV-LC-TR must retain the original Samtec part. Harwin M20 series substitutes are limited to -40°C to 105°C operation.

Frequently Asked Questions (FAQ)

Q: Are M20-8770842 and M20-8770846 directly interchangeable with TSM-108-01-S-SV-LC-TR?

A: Both Harwin parts are mechanically and electrically compatible for applications operating within -40°C to 105°C. The 0.100" (2.54mm) pitch, 8-position configuration, square contact geometry, and push-pull fastening are identical. Contact finish differences (gold vs. tin) do not affect interchangeability in standard solder applications.

Q: What is the difference between M20-8770842 and M20-8770846?

A: The primary difference is contact finish on the mating surface. M20-8770842 features gold plating, matching the original TSM specification. M20-8770846 features tin plating, which reduces material cost while maintaining solder joint reliability. Both parts share identical mechanical dimensions, pitch, and electrical ratings.

Q: Can I use these substitutes in applications requiring -55°C operation?

A: No. The Harwin M20 series is rated only to -40°C minimum. Applications requiring -55°C operation must use the original TSM-108-01-S-SV-LC-TR or identify alternative parts with equivalent low-temperature specifications.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel (TR) and Bulk packaging formats contain identical components. Packaging selection is based on assembly process requirements and inventory management, not electrical or mechanical performance.

Q: Are all three parts ROHS3 compliant?

A: Yes. TSM-108-01-S-SV-LC-TR, M20-8770842, and M20-8770846 are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: What contact material differences exist between these parts?

A: TSM-108-01-S-SV-LC-TR uses phosphor bronze contacts. Both Harwin substitutes use brass contacts. Brass provides equivalent electrical conductivity and mechanical durability for standard board-to-board applications.