TMS-125-02-G-D Equivalent & Substitute Parts

Part Overview

The TMS-125-02-G-D is a 50-position rectangular connector header manufactured by Samtec Inc., designed for board-to-board applications with through-hole solder termination. This unshrouded header features 0.050" (1.27mm) pitch mating contacts and operates across a wide temperature range of -55°C to 125°C. The part is currently active in production with 1126 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters align with the core connector specifications, enabling direct replacement in compatible applications.

Substiute Parts

TMS-125-02-G-D

Samtec Inc.In Stock: 1190TMS-125-02-G-D Datasheet

Current PartRFQ

6-103916-3

TE Connectivity AMP ConnectorsIn Stock: 21446-103916-3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 6-103916-3 (TE Connectivity AMP Connectors) qualifies as an equivalent based on the following critical parameters:

• Identical mating pitch of 0.050" (1.27mm)
• Identical position count of 50 positions
• Identical row configuration of 2 rows
• Identical row spacing of 0.100" (2.54mm)
• Matching connector type (Header) and contact type (Male Pin)
• Identical mounting method (Through Hole) and termination (Solder)
• Matching board-to-board style and unshrouded design
• Identical contact shape (Square)
• Matching insulation color (Black)
• Equivalent flammability rating (UL94 V-0)
• Equivalent RoHS3 compliance and MSL 1 rating

These parameters establish mechanical and electrical interchangeability for standard board-to-board header applications.

Parameter Comparison

Engineering Selection Recommendations

Both the TMS-125-02-G-D and 6-103916-3 are active production parts with ROHS3 compliance and MSL 1 ratings, establishing equivalent regulatory and environmental standing. The primary distinction lies in operating temperature ranges: the TMS-125-02-G-D supports -55°C to 125°C, while the 6-103916-3 operates from -65°C to 105°C. Selection between these parts should be based on the specific thermal requirements of the application. The TMS-125-02-G-D provides superior high-temperature performance, whereas the 6-103916-3 extends lower-temperature capability. Both parts meet UL94 V-0 flammability standards and maintain identical mechanical and electrical mating characteristics for board-to-board header applications.

Frequently Asked Questions (FAQ)

Q: What makes 6-103916-3 a suitable substitute for TMS-125-02-G-D?

A: Both connectors share identical mating pitch (0.050"), position count (50), row configuration (2 rows), row spacing (0.100"), contact type (Male Pin), mounting method (Through Hole), and termination (Solder). These parameters define mechanical and electrical interchangeability for standard board-to-board applications.

Q: Are there differences in contact materials between these parts?

A: Yes. The TMS-125-02-G-D uses Phosphor Bronze contacts, while the 6-103916-3 uses Copper Alloy contacts. Both materials are gold-plated at the mating surface and suitable for general-purpose interconnect applications.

Q: How do the operating temperature ranges differ?

A: The TMS-125-02-G-D operates from -55°C to 125°C, providing higher maximum temperature capability. The 6-103916-3 operates from -65°C to 105°C, extending lower-temperature performance. Application thermal requirements should guide part selection.

Q: What is the difference in insulation material?

A: The TMS-125-02-G-D uses Liquid Crystal Polymer (LCP), while the 6-103916-3 uses Thermoplastic. Both materials are black and meet UL94 V-0 flammability requirements.

Q: Are both parts RoHS compliant?

A: Yes, both the TMS-125-02-G-D and 6-103916-3 are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity ratings.

Q: Can these connectors be used interchangeably in existing designs?

A: Mechanical and electrical interchangeability is established through matching pitch, position count, row spacing, contact type, and mounting method. Design validation should confirm compatibility with specific mating components and application requirements.