TST-118-01-T-D Equivalent & Substitute Parts

Part Overview

The TST-118-01-T-D is a rectangular connector header manufactured by Samtec Inc., designed for through-hole mounting applications. This shrouded 36-position connector operates across a wide temperature range and is classified as an active product with full inventory availability. Substitute parts are identified to provide alternative sourcing options when the primary part becomes unavailable or when specific material or performance characteristics are required for particular applications.

Substiute Parts

TST-118-01-T-D
Samtec Inc.In Stock: 1031TST-118-01-T-D Datasheet
TST-118-01-T-D
Current Part
HTST-118-01-T-D
Samtec Inc.In Stock: 1242HTST-118-01-T-D Datasheet
HTST-118-01-T-D
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Key Parameters

Parameter Value
Connector Type Header
Contact Type Male Pin
Number of Positions 36
Number of Rows 2
Pitch - Mating 0.100" (2.54mm)
Row Spacing - Mating 0.100" (2.54mm)
Mounting Type Through Hole
Shrouding Shrouded - 4 Wall
Termination Solder
Current Rating 3.4A per Contact
Operating Temperature -55°C ~ 105°C
Material Flammability Rating UL94 V-0
RoHS Status ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the TST-118-01-T-D is determined by strict equivalence across the following critical parameters:

  • Connector type (Header)
  • Contact type (Male Pin)
  • Number of positions and rows (36 positions, 2 rows)
  • Pitch and row spacing (0.100" / 2.54mm)
  • Mounting method (Through Hole)
  • Shrouding configuration (Shrouded - 4 Wall)
  • Termination method (Solder)
  • Current rating (3.4A per Contact)
  • Operating temperature range (-55°C ~ 105°C)
  • Flammability compliance (UL94 V-0)
  • RoHS compliance (ROHS3 Compliant)

The HTST-118-01-T-D qualifies as a substitute part because it maintains equivalence across all critical electrical and mechanical parameters. The primary difference lies in the insulation material composition, which does not affect functional compatibility within the specified operating parameters.

Parameter Comparison

Parameter TST-118-01-T-D HTST-118-01-T-D
Manufacturer Samtec Inc. Samtec Inc.
Series Flex Stack, TST Flex Stack, HTST
Product Status Active Active
Connector Type Header Header
Contact Type Male Pin Male Pin
Number of Positions 36 36
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
Shrouding Shrouded - 4 Wall Shrouded - 4 Wall
Termination Solder Solder
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 Tin Tin
Contact Finish - Post Tin Tin
Contact Material Phosphor Bronze Phosphor Bronze
Insulation Material Polybutylene Terephthalate (PBT), Glass Filled Liquid Crystal Polymer (LCP)
Features Keying Slot Keying Slot
Operating Temperature -55°C ~ 105°C -55°C ~ 105°C
Material Flammability Rating UL94 V-0 UL94 V-0
Current Rating 3.4A per Contact 3.4A per Contact
RoHS Status ROHS3 Compliant ROHS3 Compliant
ECCN EAR99 EAR99
HTSUS 8536.69.4040 8536.69.4040

Engineering Selection Recommendations

Both the TST-118-01-T-D and HTST-118-01-T-D are active products with ROHS3 compliance and UL94 V-0 flammability certification. Selection between these parts should be based on insulation material requirements. The TST-118-01-T-D uses polybutylene terephthalate (PBT) with glass filling, while the HTST-118-01-T-D uses liquid crystal polymer (LCP). Both materials support the specified operating temperature range of -55°C to 105°C and maintain equivalent electrical performance at the rated 3.4A per contact.

Frequently Asked Questions (FAQ)

Q: Can HTST-118-01-T-D be used as a direct replacement for TST-118-01-T-D?

A: Yes. Both parts maintain identical electrical and mechanical specifications across all critical parameters including pitch, position count, current rating, operating temperature, and flammability compliance. The difference in insulation material does not affect functional compatibility within the specified operating conditions.

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

A: The TST-118-01-T-D uses polybutylene terephthalate (PBT) with glass filling, while the HTST-118-01-T-D uses liquid crystal polymer (LCP). Both materials meet UL94 V-0 flammability requirements and support the -55°C to 105°C operating temperature range.

Q: Are both parts available in the same packaging format?

A: Yes. Both the TST-118-01-T-D and HTST-118-01-T-D are supplied in bulk packaging.

Q: Do these connectors support the same current and voltage specifications?

A: Yes. Both parts are rated for 3.4A per contact and operate within the same temperature range of -55°C to 105°C.

Q: Are both parts RoHS compliant?

A: Yes. Both the TST-118-01-T-D and HTST-118-01-T-D are ROHS3 compliant.

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