TSS-120-01-G-D-LL Equivalent & Substitute Parts

Part Overview

The TSS-120-01-G-D-LL is an active rectangular connector header manufactured by Samtec Inc., designed for through-hole mounting applications. This 40-position, 2-row connector operates across industrial temperature ranges and meets RoHS3 compliance requirements. 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-120-01-G-D-LL
Samtec Inc.In Stock: 1177TSS-120-01-G-D-LL Datasheet
TSS-120-01-G-D-LL
Current Part
TST-120-01-G-D-LL
Samtec Inc.In Stock: 1098TST-120-01-G-D-LL Datasheet
TST-120-01-G-D-LL
Similar

Key Parameters

Parameter Value
Manufacturer Part Number TSS-120-01-G-D-LL
Manufacturer Samtec Inc.
Category Rectangular Connectors
Series Flex Stack, TSS
Connector Type Header
Contact Type Male Pin
Number of Positions 40
Number of Rows 2
Pitch - Mating 0.100" (2.54mm)
Row Spacing - Mating 0.100" (2.54mm)
Mounting Type Through Hole
Termination Kinked Pin, Solder
Shrouding Shrouded - 4 Wall
Contact Finish - Mating Gold
Contact Material Phosphor Bronze
Insulation Material Polybutylene Terephthalate (PBT)
Operating Temperature -55°C ~ 125°C
Material Flammability Rating UL94 V-0
RoHS Status ROHS3 Compliant
Product Status Active

Substitute Part Grouping Explanation

Substitution eligibility for the TSS-120-01-G-D-LL is determined by strict alignment of the following critical parameters:

  • Connector Type & Contact Configuration: Header with male pins
  • Position Count & Row Configuration: 40 positions arranged 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 Design: Shrouded 4-wall construction
  • Contact Materials & Finish: Phosphor bronze with gold mating surface
  • Insulation Material: Polybutylene Terephthalate (PBT) base composition
  • Operating Temperature Range: -55°C ~ 125°C
  • Compliance Standards: UL94 V-0 flammability rating and RoHS3 compliance

The TST-120-01-G-D-LL qualifies as a substitute part based on matching all critical electrical and mechanical parameters within these specifications.

Parameter Comparison

Parameter TSS-120-01-G-D-LL (Main) TST-120-01-G-D-LL (Substitute)
Manufacturer Samtec Inc. Samtec Inc.
Series Flex Stack, TSS Flex Stack, TST
Connector Type Header Header
Contact Type Male Pin Male Pin
Number of Positions 40 40
Number of Rows 2 2
Pitch - Mating 0.100" (2.54mm) 0.100" (2.54mm)
Row Spacing - Mating 0.100" (2.54mm) 0.100" (2.54mm)
Mounting Type Through Hole Through Hole
Termination Kinked Pin, Solder Kinked Pin, Solder
Shrouding Shrouded - 4 Wall Shrouded - 4 Wall
Contact Length - Mating 0.250" (6.35mm) 0.250" (6.35mm)
Contact Length - Post 0.115" (2.92mm) 0.115" (2.92mm)
Overall Contact Length 0.480" (12.19mm) 0.480" (12.19mm)
Insulation Height 0.350" (8.89mm) 0.350" (8.89mm)
Contact Shape Square Square
Contact Finish - Mating Gold Gold
Contact Finish Thickness - Mating 10.0µin (0.25µm) 10.0µin (0.25µm)
Contact Finish - Post Gold Gold
Contact Material Phosphor Bronze Phosphor Bronze
Insulation Material Polybutylene Terephthalate (PBT) Polybutylene Terephthalate (PBT), Glass Filled
Operating Temperature -55°C ~ 125°C -55°C ~ 125°C
Material Flammability Rating UL94 V-0 UL94 V-0
RoHS Status ROHS3 Compliant ROHS3 Compliant
Product Status Active Active
Current Rating Not specified 3.4A per Contact
Connector Style Board to Board or Cable Board to Cable/Wire

Engineering Selection Recommendations

Both the TSS-120-01-G-D-LL and TST-120-01-G-D-LL maintain active product status with full RoHS3 compliance and UL94 V-0 flammability certification. The parts are functionally equivalent across all critical electrical and mechanical parameters, including pitch, contact configuration, termination method, and operating temperature range.

The TST-120-01-G-D-LL features glass-filled PBT insulation material and specifies a current rating of 3.4A per contact, whereas the main part does not provide current rating specifications. The connector style designation differs slightly (Board to Cable/Wire versus Board to Board or Cable), reflecting application flexibility within the same physical and electrical interface.

Selection between these parts should be based on application requirements for current capacity and insulation material properties. Both parts are suitable for equivalent circuit board integration and connector mating applications.

Frequently Asked Questions (FAQ)

Q: Can TST-120-01-G-D-LL be used as a direct replacement for TSS-120-01-G-D-LL?

A: Yes. Both parts share identical pitch specifications (0.100" / 2.54mm), position count (40), row configuration (2), contact materials (phosphor bronze with gold finish), mounting type (through-hole), and operating temperature range (-55°C ~ 125°C). The parts are mechanically and electrically compatible for equivalent circuit board applications.

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

A: The TSS-120-01-G-D-LL uses standard polybutylene terephthalate (PBT), while the TST-120-01-G-D-LL uses glass-filled PBT. Glass-filled PBT provides enhanced mechanical strength and thermal stability. Both materials meet UL94 V-0 flammability requirements.

Q: Does the current rating difference affect substitution eligibility?

A: The TST-120-01-G-D-LL specifies 3.4A per contact, while the TSS-120-01-G-D-LL does not provide a current rating specification. For applications requiring explicit current capacity documentation, the TST-120-01-G-D-LL provides defined electrical performance parameters. Both parts maintain identical contact geometry and materials.

Q: Are both parts RoHS3 compliant?

A: Yes. Both TSS-120-01-G-D-LL and TST-120-01-G-D-LL are ROHS3 compliant and carry UL94 V-0 flammability certification, meeting current regulatory requirements for electronic component manufacturing.

Q: What connector style differences exist between these parts?

A: The TSS-120-01-G-D-LL is designated for Board to Board or Cable applications, while the TST-120-01-G-D-LL is designated for Board to Cable/Wire applications. Both support through-hole solder termination with kinked pins and shrouded 4-wall construction, maintaining compatibility across standard connector mating scenarios.

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