TSM-125-01-S-DV Equivalent & Substitute Parts

Part Overview

The TSM-125-01-S-DV is a surface mount rectangular connector header manufactured by Samtec Inc. in the TSM series. This connector features 50 positions arranged in 2 rows with 0.100" (2.54mm) pitch, designed for board-to-board or cable applications. The part is actively produced and maintains full inventory availability. Equivalent and substitute parts are identified based on matching electrical and mechanical parameters including connector type, pitch, position count, row configuration, mounting method, and material specifications.

Key Parameters

Parameter	Value
Manufacturer Part Number	TSM-125-01-S-DV
Manufacturer	Samtec Inc.
Category	Rectangular Connectors
Connector Type	Header, Cuttable
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	50
Number of Rows	2
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Surface Mount
Termination	Solder
Contact Material	Phosphor Bronze
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 (MSL)	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the TSM-125-01-S-DV are grouped into two categories based on manufacturer and connector type variation:

Samtec Inc. TSM Series Variants: Parts TSM-125-01-SM-DV, TSM-125-01-SM-DV-P, TSM-125-01-S-DV-LC, TSM-125-01-S-DV-LC-P, and TSM-125-01-S-DV-P maintain identical core electrical and mechanical parameters. These variants differ only in optional features (Board Lock, Pick and Place capability) and insulation material designation. All share the same pitch (0.100"), position count (50), row configuration (2 rows), mounting type (Surface Mount), contact material (Phosphor Bronze), operating temperature range (-55°C ~ 125°C), and flammability rating (UL94 V-0).

Amphenol ICC BERGSTIK® Series: Parts 95278-101-50LF and 95278-101B50LF are functionally equivalent alternatives from a different manufacturer. These parts maintain the same pitch (0.100"), position count (50), row configuration (2 rows), mounting type (Surface Mount), contact material (Phosphor Bronze), and flammability rating (UL94 V-0). The primary differences are connector type designation (Breakaway vs. Cuttable), contact length (0.232" vs. 0.230"), insulation material (Thermoplastic vs. LCP), and operating temperature range (-65°C ~ 125°C vs. -55°C ~ 125°C).

Substitution is valid when the application requirements align with these parameter specifications.

Parameter Comparison

Parameter	TSM-125-01-S-DV	TSM-125-01-SM-DV	TSM-125-01-S-DV-LC	TSM-125-01-S-DV-P	TSM-125-01-SM-DV-P	TSM-125-01-S-DV-LC-P	95278-101-50LF	95278-101B50LF
Manufacturer	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Amphenol ICC (FCI)	Amphenol ICC (FCI)
Connector Type	Header, Cuttable	Header, Cuttable	Header, Cuttable	Header, Cuttable	Header, Cuttable	Header, Cuttable	Header, Breakaway	Header, Breakaway
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Positions	50	50	50	50	50	50	50	50
Number of Rows	2	2	2	2	2	2	2	2
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Contact Material	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold	Gold	Gold, GXT™	Gold, GXT™
Contact Finish Thickness - Mating	30.0µin (0.76µm)	30.0µin (0.76µm)	30.0µin (0.76µm)	30.0µin (0.76µm)	30.0µin (0.76µm)	30.0µin (0.76µm)	30.0µin (0.76µm)	30.0µin (0.76µm)
Insulation Material	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Thermoplastic	Thermoplastic
Insulation Color	Black	Black	Black	Black	Black	Black	Black	Black
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All listed substitute parts maintain active product status and comply with applicable regulatory requirements. Samtec Inc. TSM series variants (TSM-125-01-SM-DV, TSM-125-01-SM-DV-P, TSM-125-01-S-DV-LC, TSM-125-01-S-DV-LC-P, TSM-125-01-S-DV-P) are ROHS3 compliant and share identical core specifications with the TSM-125-01-S-DV. These variants are suitable for direct substitution when optional features such as Board Lock or Pick and Place capability are required or acceptable.

Amphenol ICC BERGSTIK® series parts (95278-101-50LF and 95278-101B50LF) are RoHS compliant alternatives that maintain equivalent electrical and mechanical compatibility. The extended operating temperature range (-65°C ~ 125°C) of the BERGSTIK® series provides additional thermal margin compared to the TSM series (-55°C ~ 125°C). The Thermoplastic insulation material in BERGSTIK® parts differs from the LCP material in TSM parts; both materials meet UL94 V-0 flammability requirements.

Selection between Samtec and Amphenol alternatives depends on design requirements for connector type (Cuttable vs. Breakaway), insulation material specification, and thermal operating range. All parts are suitable for board-to-board applications with identical pitch, position count, and row spacing.

Frequently Asked Questions (FAQ)

Q: Can TSM-125-01-SM-DV replace TSM-125-01-S-DV directly?

A: Yes. Both parts share identical electrical and mechanical parameters including pitch (0.100"), position count (50), row configuration (2 rows), mounting type (Surface Mount), contact material (Phosphor Bronze), and operating temperature range (-55°C ~ 125°C). The difference is connector type designation within the same series; both are cuttable headers with equivalent functionality.

Q: What is the difference between Samtec TSM and Amphenol BERGSTIK® parts?

A: Core electrical and mechanical parameters are equivalent. Key differences are: (1) Connector type designation (Cuttable vs. Breakaway), (2) Insulation material (LCP vs. Thermoplastic), (3) Operating temperature range (TSM: -55°C ~ 125°C; BERGSTIK®: -65°C ~ 125°C), and (4) RoHS compliance level (ROHS3 vs. RoHS). Both meet UL94 V-0 flammability requirements.

Q: Are Board Lock and Pick and Place features interchangeable?

A: Board Lock and Pick and Place are optional features that do not affect core electrical or mechanical compatibility. Parts with these features (TSM-125-01-S-DV-LC, TSM-125-01-S-DV-P, TSM-125-01-S-DV-LC-P, TSM-125-01-SM-DV-P) are substitutable for the base TSM-125-01-S-DV when these features are not required. Selection depends on assembly process requirements.

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

A: Packaging type (Tube vs. Bulk) affects handling and storage but does not impact electrical or mechanical performance. TSM-125-01-S-DV is supplied in Tube packaging; 95278-101-50LF is supplied in Bulk packaging. Both are suitable for equivalent applications.

Q: Can I use BERGSTIK® parts in applications requiring LCP insulation material?

A: BERGSTIK® parts use Thermoplastic insulation instead of LCP. Both materials meet UL94 V-0 flammability requirements. Substitution is valid when the application does not specifically require LCP material properties. Verify material requirements against design specifications before substitution.

Q: What is the contact length difference between TSM and BERGSTIK® parts?

A: TSM series contact length is 0.230" (5.84mm); BERGSTIK® series contact length is 0.232" (5.90mm). This 0.002" difference is within standard manufacturing tolerances and does not affect mating compatibility or electrical performance in standard board-to-board applications.

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