TSS-125-01-G-D-LL Equivalent & Substitute Parts

Part Overview

The TSS-125-01-G-D-LL is a rectangular connector header manufactured by Samtec Inc., designed for through-hole board-to-board or cable applications. This shrouded 50-position connector operates across -55°C to 125°C and features gold-plated phosphor bronze contacts with kinked pin solder termination. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating. Identifying equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and support alternative sourcing strategies while maintaining electrical and mechanical compatibility.

Substiute Parts

TSS-125-01-G-D-LL

Samtec Inc.In Stock: 834TSS-125-01-G-D-LL Datasheet

Current PartRFQ

TST-125-01-G-D-LL

Samtec Inc.In Stock: 1058TST-125-01-G-D-LL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TSS-125-01-G-D-LL is determined by strict alignment of the following critical parameters:

• Connector Type & Contact Type: Header with Male Pin contacts
• Position Count & Row Configuration: 50 positions in 2 rows
• Pitch Specifications: 0.100" (2.54mm) mating pitch and row spacing
• Mounting & Termination: Through-hole mounting with kinked pin solder termination
• Shrouding Configuration: Shrouded 4-wall design
• Contact Material & Finish: Phosphor bronze with gold plating on mating surfaces
• Fastening Mechanism: Push-pull fastening type
• Environmental Compliance: ROHS3 compliance and UL94 V-0 flammability rating
• Operating Temperature Range: -55°C to 125°C

The TST-125-01-G-D-LL qualifies as a substitute part because it maintains all critical electrical and mechanical parameters. The primary difference lies in the connector style designation (TST series versus TSS series) and the insulation material composition (glass-filled PBT in the substitute versus standard PBT in the main part). Both parts share identical pitch, position count, row configuration, contact geometry, termination method, and environmental ratings.

Parameter Comparison

Engineering Selection Recommendations

Both the TSS-125-01-G-D-LL and TST-125-01-G-D-LL are active production parts manufactured by Samtec Inc. with identical ROHS3 compliance and UL94 V-0 flammability certification. The parts are electrically and mechanically interchangeable across all critical connector parameters including pitch, position count, contact geometry, termination method, and operating temperature range.

The TST-125-01-G-D-LL substitute features glass-filled polybutylene terephthalate insulation, which provides enhanced mechanical strength and dimensional stability compared to standard PBT. This material enhancement does not alter electrical performance or mechanical compatibility but may offer improved durability in applications subject to thermal cycling or mechanical stress.

Selection between these parts should be based on application-specific requirements for insulation material properties and supply chain availability. Both parts maintain full compliance with environmental and safety standards applicable to rectangular connector headers in this category.

Frequently Asked Questions (FAQ)

Q: Are the TSS-125-01-G-D-LL and TST-125-01-G-D-LL directly interchangeable?

A: Yes. Both parts maintain identical pitch (0.100" / 2.54mm), position count (50), row configuration (2 rows), contact geometry, termination method (kinked pin solder), and fastening mechanism (push-pull). They are mechanically and electrically compatible for board-to-board and cable applications.

Q: What is the difference between the TSS and TST series designations?

A: The series designation reflects the connector style classification within Samtec's Flex Stack product line. The TSS series is designated for board-to-board or cable applications, while the TST series is designated for board-to-cable/wire applications. Both maintain identical electrical and mechanical specifications for the 50-position 2.54mm pitch header configuration.

Q: Does the glass-filled insulation material in the TST-125-01-G-D-LL affect electrical performance?

A: No. The glass-filled polybutylene terephthalate insulation does not alter electrical characteristics. It provides enhanced mechanical properties including improved dimensional stability and thermal resistance, but does not change voltage rating, current capacity, or operating temperature range.

Q: Are both parts ROHS3 compliant?

A: Yes. Both the TSS-125-01-G-D-LL and TST-125-01-G-D-LL are ROHS3 compliant with UL94 V-0 flammability certification and unlimited moisture sensitivity level (MSL 1).

Q: Can these connectors be used in high-temperature applications?

A: Both parts are rated for continuous operation from -55°C to 125°C. This operating temperature range is suitable for industrial and commercial applications within these thermal limits.

Q: What is the current rating for these connectors?

A: The TST-125-01-G-D-LL substitute specifies a current rating of 3.4A per contact. The main part TSS-125-01-G-D-LL does not specify a current rating in the provided data.

Q: Are keying slots present on both connector variants?

A: Yes. Both the TSS-125-01-G-D-LL and TST-125-01-G-D-LL feature keying slots to ensure correct mating orientation and prevent reverse insertion.