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

Part Overview

The TMS-120-02-G-S is an active rectangular connector header manufactured by Samtec Inc., designed for through-hole board-to-board applications. This 20-position, single-row connector operates across -55°C to 125°C and features gold-plated phosphor bronze contacts with 1.27mm pitch spacing. Finding equivalent or substitute parts may be necessary due to inventory constraints, lead time requirements, or design flexibility needs while maintaining electrical and mechanical compatibility.

Substiute Parts

TMS-120-02-G-S

Samtec Inc.In Stock: 886TMS-120-02-G-S Datasheet

Current PartRFQ

6-104178-1

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

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TMS-120-02-G-S is determined by strict alignment of the following critical parameters:

• Connector Type & Contact Type: Must be Header with Male Pin configuration
• Position Count & Row Configuration: Must be 20 positions in 1 row
• Pitch Spacing: Must be 0.050" (1.27mm) mating pitch
• Mounting & Termination: Must be Through Hole with Solder termination
• Style & Fastening: Must be Board to Board with Push-Pull fastening
• Contact Geometry: Must have Square contact shape
• Shrouding: Must be Unshrouded
• Compliance & Environmental: Must maintain UL94 V-0 flammability rating and MSL 1 rating

The substitute part 6-104178-1 (TE Connectivity AMP Connectors) meets all critical substitution criteria for the TMS-120-02-G-S rectangular connector header.

Parameter Comparison

Engineering Selection Recommendations

Both the TMS-120-02-G-S and 6-104178-1 are active products with equivalent core functionality for 20-position, 1.27mm pitch header applications. Selection between these parts should be based on the following factors:

TMS-120-02-G-S (Samtec Inc.): Offers a wider operating temperature range (-55°C to 125°C), specified current rating of 5A per contact, and LCP insulation material. ROHS3 compliant with REACH unaffected status.

6-104178-1 (TE Connectivity AMP Connectors): Provides extended low-temperature capability (-65°C), thermoplastic insulation, and 30VAC voltage rating specification. RoHS compliant with vendor-undefined REACH status. Supports both board-to-board and cable applications.

Both parts maintain UL94 V-0 flammability rating and MSL 1 moisture sensitivity level, ensuring compatibility in standard industrial and commercial applications. The choice between these substitutes depends on specific application requirements regarding temperature extremes, voltage specifications, and packaging preferences (Tube vs. Bulk).

Frequently Asked Questions (FAQ)

Q: Can 6-104178-1 directly replace TMS-120-02-G-S in existing designs?

A: Yes. Both connectors share identical pitch spacing (1.27mm), position count (20), row configuration (1), contact type (male pin), and mounting method (through-hole solder). The square contact geometry and push-pull fastening are equivalent. Physical footprint compatibility is maintained.

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

A: TMS-120-02-G-S operates from -55°C to 125°C, while 6-104178-1 operates from -65°C to 105°C. The TE Connectivity part extends lower temperature capability by 10°C but has a 20°C lower upper temperature limit. Application requirements determine which range is appropriate.

Q: Are the contact materials interchangeable?

A: Both use gold-plated mating contacts. TMS-120-02-G-S uses phosphor bronze base material, while 6-104178-1 uses copper alloy. Both materials are suitable for 1.27mm pitch header applications with equivalent electrical performance in standard operating conditions.

Q: What is the difference between Tube and Bulk packaging?

A: TMS-120-02-G-S is supplied in Tube packaging (784 pcs in stock), while 6-104178-1 is supplied in Bulk packaging (2876 pcs in stock). Packaging affects handling, storage, and ordering quantities but does not impact electrical or mechanical performance.

Q: Do both parts meet the same compliance standards?

A: Both parts are UL94 V-0 rated and have MSL 1 moisture sensitivity level. TMS-120-02-G-S is ROHS3 compliant with REACH unaffected status. 6-104178-1 is RoHS compliant with vendor-undefined REACH status. Verify specific compliance requirements for your application.

Q: Is the current rating specified for 6-104178-1?

A: The current rating for 6-104178-1 is not provided in the technical specifications. TMS-120-02-G-S specifies 5A per contact. For applications requiring confirmed current ratings, contact the manufacturer or consult detailed datasheets.