TSM-108-01-S-SV-P Equivalent & Substitute Parts

Part Overview

The TSM-108-01-S-SV-P is a surface mount rectangular connector header manufactured by Samtec Inc. 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 full inventory availability. Substitute parts may be required due to supply chain considerations, packaging preferences, or specific application requirements while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Connector Type	Header, Cuttable
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	8
Number of Rows	1
Mounting Type	Surface Mount
Termination	Solder
Fastening Type	Push-Pull
Insulation Height	0.100" (2.54mm)
Contact Shape	Square
Insulation Material	Liquid Crystal Polymer (LCP)
Operating Temperature	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the TSM-108-01-S-SV-P are qualified based on the following critical parameters that must match or be compatible:

Connector type: Header, cuttable configuration
Contact type: Male pin
Pitch: 0.100" (2.54mm) mating pitch
Number of positions: 8 positions in single row
Mounting: Surface mount technology
Termination: Solder
Fastening: Push-pull mechanism
Insulation height: 0.100" (2.54mm)
Contact shape: Square
Shrouding: Unshrouded
Compliance: ROHS3 compliant, UL94 V-0 rated

The substitute parts M20-8770842 and M20-8770846 (both Harwin Inc. M20 series) meet these core electrical and mechanical requirements. Variations in contact material (brass vs. phosphor bronze), contact finish (gold vs. tin), insulation material (polyamide vs. LCP), and operating temperature range represent acceptable engineering trade-offs within the rectangular connector category.

Parameter Comparison

Parameter	TSM-108-01-S-SV-P (Samtec)	M20-8770842 (Harwin)	M20-8770846 (Harwin)
Manufacturer	Samtec Inc.	Harwin Inc.	Harwin Inc.
Connector Type	Header, Cuttable	Header, Cuttable	Header, Cuttable
Contact Type	Male Pin	Male Pin	Male Pin
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Positions	8	8	8
Number of Rows	1	1	1
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Termination	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull
Contact Length - Mating	0.230" (5.84mm)	0.228" (5.80mm)	0.228" (5.80mm)
Insulation Height	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Contact Shape	Square	Square	Square
Contact Finish - Mating	Gold	Gold	Tin
Contact Material	Phosphor Bronze	Brass	Brass
Insulation Material	Liquid Crystal Polymer (LCP)	Polyamide (PA6T), Nylon 6T	Polyamide (PA6T), Nylon 6T
Operating Temperature	-55°C ~ 125°C	-40°C ~ 105°C	-40°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Current Rating	Not specified	3A per Contact	3A per Contact
Packaging	Tube	Bulk	Bulk

Engineering Selection Recommendations

All three parts maintain active product status and ROHS3 compliance with UL94 V-0 flammability certification. The TSM-108-01-S-SV-P operates across a wider temperature range (-55°C to 125°C) compared to the Harwin substitutes (-40°C to 105°C). Applications requiring the full -55°C lower temperature limit should retain the Samtec part.

The M20-8770842 and M20-8770846 are functionally equivalent for standard operating conditions within the -40°C to 105°C range. The primary differences are contact finish (gold vs. tin) and packaging format (tube vs. bulk). Both Harwin parts feature brass contact material and polyamide insulation, which are acceptable alternatives to the phosphor bronze and LCP specifications of the original part.

Frequently Asked Questions (FAQ)

Q: Can M20-8770842 or M20-8770846 be used as direct replacements for TSM-108-01-S-SV-P?

A: Yes, 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 single-row configuration, surface mount solder termination, and push-pull fastening are identical across all three parts. Verify your application's temperature requirements before substitution.

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

A: Both parts are identical except for contact finish. M20-8770842 features gold-plated mating contacts, while M20-8770846 features tin-plated mating contacts. Both have tin-plated posts. Contact finish selection depends on application requirements for corrosion resistance and signal integrity.

Q: Why does the TSM-108-01-S-SV-P have a wider operating temperature range?

A: The TSM-108-01-S-SV-P uses Liquid Crystal Polymer (LCP) insulation material, which supports operation down to -55°C. The Harwin substitutes use Polyamide (PA6T) insulation, which is rated to -40°C minimum. Material selection reflects different design approaches within the rectangular connector category.

Q: Are there packaging differences between these parts?

A: Yes. The TSM-108-01-S-SV-P is supplied in tube packaging, while both Harwin substitutes (M20-8770842 and M20-8770846) are supplied in bulk packaging. Packaging format may affect handling, storage, and pick-and-place automation considerations.

Q: Do all three parts meet the same compliance standards?

A: Yes. All three parts are ROHS3 compliant, UL94 V-0 rated, and have MSL 1 (Unlimited) moisture sensitivity levels. REACH status is unaffected for all parts.

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