TSS-125-03-G-D Equivalent & Substitute Parts

Part Overview

The TSS-125-03-G-D is a rectangular connector header manufactured by Samtec Inc., designed for through-hole mounting applications. This shrouded 50-position header operates across the temperature range of -55°C to 125°C and features gold-plated phosphor bronze contacts with push-pull fastening. The part maintains Active product status and is ROHS3 compliant with MSL 1 rating. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when specific material or application requirements necessitate component variation.

Substiute Parts

TSS-125-03-G-D

Samtec Inc.In Stock: 1112TSS-125-03-G-D Datasheet

Current PartRFQ

HTSS-125-03-G-D

Samtec Inc.In Stock: 1063HTSS-125-03-G-D Datasheet

SimilarRFQ

TST-125-03-G-D

Samtec Inc.In Stock: 1051TST-125-03-G-D Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TSS-125-03-G-D is determined by strict equivalence across the following critical parameters: connector type (Header), contact type (Male Pin), number of positions (50), number of rows (2), mating pitch (0.100"/2.54mm), row spacing (0.100"/2.54mm), mounting type (Through Hole), termination method (Solder), fastening type (Push-Pull), shrouding configuration (Shrouded - 4 Wall), contact finish (Gold), contact material (Phosphor Bronze), operating temperature range (-55°C ~ 125°C), and flammability rating (UL94 V-0).

Identified substitutes maintain these core electrical and mechanical parameters. Variations in insulation material (Polybutylene Terephthalate versus Liquid Crystal Polymer) and application style (Board to Board versus Board to Cable/Wire) represent secondary differences that do not affect core substitution eligibility when the primary functional parameters remain constant.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain Active product status and ROHS3 compliance, qualifying them for equivalent substitution based on core electrical and mechanical parameters. The TSS-125-03-G-D and HTSS-125-03-G-D differ primarily in insulation material composition and color, with HTSS-125-03-G-D utilizing Liquid Crystal Polymer (LCP) in natural color versus the TSS-125-03-G-D's Polybutylene Terephthalate (PBT) in black. The TST-125-03-G-D employs glass-filled PBT and is specified for Board to Cable/Wire applications with a documented current rating of 3.4A per contact, whereas the TSS and HTSS variants are specified for Board to Board or Cable applications without explicit current ratings.

Selection between these substitutes depends on application requirements: choose HTSS-125-03-G-D when LCP insulation material properties are required; select TST-125-03-G-D when cable/wire termination is the primary application and the 3.4A per contact specification aligns with design requirements; retain TSS-125-03-G-D for standard board-to-board or general cable applications with PBT insulation.

Frequently Asked Questions (FAQ)

Q: Can TST-125-03-G-D replace TSS-125-03-G-D in a board-to-board application?

A: TST-125-03-G-D is specified for Board to Cable/Wire applications, while TSS-125-03-G-D is specified for Board to Board or Cable applications. Although the core electrical and mechanical parameters are equivalent, the application style designation should be considered in design validation.

Q: What is the significance of the insulation material difference between TSS-125-03-G-D and HTSS-125-03-G-D?

A: TSS-125-03-G-D uses Polybutylene Terephthalate (PBT), while HTSS-125-03-G-D uses Liquid Crystal Polymer (LCP). Both materials meet UL94 V-0 flammability requirements and operate across the same temperature range. Material selection depends on specific environmental or mechanical requirements of the application.

Q: Does the TST-125-03-G-D current rating of 3.4A per contact apply to all three parts?

A: The TST-125-03-G-D explicitly specifies 3.4A per contact. The TSS-125-03-G-D and HTSS-125-03-G-D do not provide explicit current ratings in the available specifications. Applications requiring defined current capacity should reference the TST-125-03-G-D specification or contact the manufacturer for TSS and HTSS current ratings.

Q: Are all three parts RoHS compliant?

A: Yes, all three parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, suitable for standard storage and handling conditions.

Q: What is the difference in insulation color between these parts?

A: TSS-125-03-G-D and TST-125-03-G-D feature black insulation, while HTSS-125-03-G-D features natural color insulation. Color difference does not affect electrical or mechanical function and is a cosmetic distinction related to material composition.