TMS-120-02-S-S Equivalent & Substitute Parts

Part Overview

The TMS-120-02-S-S is a 0.050" (1.27mm) pitch micro header connector manufactured by Samtec Inc., designed for through-hole board-to-board applications. This unshrouded, 20-position single-row header features male pins with gold-plated mating contacts and tin-plated posts, rated for 5A per contact and operating temperatures from -55°C to 125°C. The connector is classified as Active product status with full RoHS3 compliance and MSL 1 rating. Equivalent and substitute parts are identified to provide design flexibility, inventory alternatives, and sourcing options while maintaining functional compatibility within specified electrical and mechanical parameters.

Substiute Parts

TMS-120-02-S-S

Samtec Inc.In Stock: 882TMS-120-02-S-S Datasheet

Current PartRFQ

6-104178-1

TE Connectivity AMP ConnectorsIn Stock: 29166-104178-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TMS-120-02-S-S are identified based on strict alignment of the following critical parameters:

• Pitch - Mating: 0.050" (1.27mm) — exact match required
• Number of Positions: 20 — exact match required
• Number of Rows: 1 — exact match required
• Connector Type: Header — exact match required
• Contact Type: Male Pin — exact match required
• Mounting Type: Through Hole — exact match required
• Termination: Solder — exact match required
• Fastening Type: Push-Pull — exact match required
• Shrouding: Unshrouded — exact match required
• Contact Finish - Mating: Gold — exact match required
• Insulation Material: Thermoplastic or LCP — functionally equivalent
• Material Flammability Rating: UL94 V-0 — exact match required
• Moisture Sensitivity Level: 1 — exact match required

The substitute part 6-104178-1 (TE Connectivity AMP Connectors) meets all critical substitution criteria. Variations in contact material (Copper Alloy vs. Phosphor Bronze), operating temperature range, and current rating specifications are documented for engineering evaluation but do not preclude functional substitution within the defined parameter set.

Parameter Comparison

Engineering Selection Recommendations

Both the TMS-120-02-S-S and 6-104178-1 are Active product status connectors with full compliance to UL94 V-0 flammability standards and MSL 1 moisture sensitivity ratings. The TMS-120-02-S-S offers a wider operating temperature range (-55°C to 125°C) and specified current rating of 5A per contact. The 6-104178-1 provides a specified voltage rating of 30VAC and is available in higher inventory quantities (2876 pcs vs. 822 pcs). Both connectors feature identical mating pitch (0.050"), position count (20), row configuration (1), contact geometry (square male pins), and gold-plated mating surfaces with 30.0µin thickness. Selection between these parts should be based on application-specific requirements for operating temperature range, current capacity, voltage specifications, and packaging format (Tube vs. Bulk).

Frequently Asked Questions (FAQ)

Q: Can the 6-104178-1 be used as a direct replacement for the TMS-120-02-S-S?

A: The 6-104178-1 meets all critical substitution parameters including pitch (0.050"), position count (20), connector type (header), contact type (male pin), mounting method (through hole), termination (solder), fastening type (push-pull), and shrouding (unshrouded). Both parts feature identical contact geometry, gold-plated mating surfaces, and UL94 V-0 flammability compliance. Substitution is functionally valid within the defined parameter set. Application-specific requirements for operating temperature range and current capacity should be evaluated independently.

Q: What are the differences in operating temperature range between these parts?

A: The TMS-120-02-S-S operates from -55°C to 125°C, while the 6-104178-1 operates from -65°C to 105°C. The TMS-120-02-S-S provides higher maximum temperature capability; the 6-104178-1 provides lower minimum temperature capability. Selection depends on the specific thermal requirements of the application.

Q: Are there differences in contact material between these connectors?

A: The TMS-120-02-S-S uses Phosphor Bronze contacts, while the 6-104178-1 uses Copper Alloy contacts. Both materials are suitable for the specified mating pitch and contact geometry. Contact material selection does not affect substitution eligibility based on the defined parameter set.

Q: What is the difference between the packaging formats?

A: The TMS-120-02-S-S is supplied in Tube packaging, while the 6-104178-1 is supplied in Bulk packaging. Tube packaging provides individual component protection; Bulk packaging provides higher-density storage. Packaging format does not affect electrical or mechanical compatibility.

Q: Are both parts RoHS compliant?

A: Yes. The TMS-120-02-S-S is ROHS3 Compliant, and the 6-104178-1 is RoHS Compliant. Both parts meet lead-free and hazardous substance restriction requirements.

Q: What is the current rating for the 6-104178-1?

A: The current rating for the 6-104178-1 is not specified in the provided technical data. The TMS-120-02-S-S is rated for 5A per contact. Current capacity requirements should be evaluated against application specifications.