HTST-120-01-L-DV-TR Equivalent & Substitute Parts

Part Overview

The HTST-120-01-L-DV-TR is a surface mount rectangular connector header manufactured by Samtec Inc. in the Flex Stack series. This 40-position, 2-row connector with 0.100" (2.54mm) pitch is designed for board-to-cable/wire applications with push-pull fastening and shrouded 4-wall construction. The part is currently active in production with 793 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, enabling component interchangeability in applications where the primary part becomes unavailable or when design requirements permit alternative manufacturers.

Substiute Parts

HTST-120-01-L-DV-TR

Samtec Inc.In Stock: 891HTST-120-01-L-DV-TR Datasheet

Current PartRFQ

N2540-6V0C-RB-WG

3MIn Stock: 4734N2540-6V0C-RB-WG Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The N2540-6V0C-RB-WG manufactured by 3M qualifies as a substitute based on the following alignment of critical parameters:

Matched Parameters:

• Connector type: Header with male pin contacts
• Position count and row configuration: 40 positions in 2 rows
• Mating pitch: 0.100" (2.54mm)
• Row spacing: 0.100" (2.54mm)
• Mounting technology: Surface mount with solder termination
• Shrouding configuration: Shrouded 4-wall design
• Fastening mechanism: Push-pull
• Contact finish: Gold on mating surface
• Contact shape: Square
• Flammability rating: UL94 V-0
• ECCN classification: EAR99

Substitution Basis: The substitute part maintains functional and mechanical compatibility through identical pitch spacing, position count, mounting method, and connector interface geometry. Both parts employ push-pull fastening with shrouded 4-wall construction and gold-plated mating contacts, ensuring interchangeability in applications requiring these specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the HTST-120-01-L-DV-TR and N2540-6V0C-RB-WG maintain active product status with full RoHS compliance and UL94 V-0 flammability certification. Selection between these parts should account for the following documented differences:

Current Rating Differential: The HTST-120-01-L-DV-TR is rated for 3.4A per contact, while the N2540-6V0C-RB-WG is rated for 1.75A per contact. Applications requiring the higher current capacity must use the Samtec part.

Operating Temperature Range: The HTST-120-01-L-DV-TR operates across -55°C to 125°C, while the 3M substitute operates to -55°C to 105°C. Designs requiring operation above 105°C must specify the Samtec part.

Mechanical Dimensions: Contact length and insulation height differ between the two parts. The HTST-120-01-L-DV-TR has a contact mating length of 0.250" (6.35mm) and insulation height of 0.350" (8.89mm), compared to 0.243" (6.17mm) and 0.390" (9.91mm) respectively for the 3M part. PCB layout and mating interface geometry must accommodate these dimensional variations.

Contact Finish Thickness: The 3M part provides thicker gold plating (30.0µin vs. 10.0µin), which may offer enhanced durability in high-cycle mating applications.

Both parts are suitable for board-to-cable/wire applications with push-pull fastening and shrouded 4-wall construction. Component selection should be based on application-specific requirements for current capacity, temperature range, and mechanical fit.

Frequently Asked Questions (FAQ)

Q: Can the N2540-6V0C-RB-WG be used as a direct replacement for the HTST-120-01-L-DV-TR?

A: Functional substitution is possible when application requirements fall within the N2540-6V0C-RB-WG specifications. The 1.75A current rating and 105°C maximum operating temperature must be compatible with your design. Mechanical dimensions differ slightly; verify PCB layout and mating interface clearances before implementation.

Q: What are the critical parameters that define substitution eligibility?

A: Substitution is based on matching connector type (header), contact type (male pin), position count (40), row configuration (2 rows), mating pitch (0.100"), row spacing (0.100"), mounting method (surface mount), shrouding (4-wall), fastening type (push-pull), termination (solder), contact finish (gold), and flammability rating (UL94 V-0). Deviations in these parameters indicate non-interchangeability.

Q: How do the insulation materials differ between these parts?

A: The HTST-120-01-L-DV-TR uses Liquid Crystal Polymer (LCP), while the N2540-6V0C-RB-WG uses glass-filled Polycyclohexylenedimethylene Terephthalate (PCT). Both materials meet UL94 V-0 flammability requirements. Material selection may affect mechanical properties and environmental resistance; consult material datasheets for application-specific compatibility.

Q: What packaging formats are available?

A: The HTST-120-01-L-DV-TR is available in standard packaging. The N2540-6V0C-RB-WG is supplied in Cut Tape (CT) format. Verify packaging compatibility with your assembly process and component handling requirements.

Q: Are both parts RoHS compliant?

A: Yes. The HTST-120-01-L-DV-TR is ROHS3 compliant, and the N2540-6V0C-RB-WG is RoHS compliant. Both parts meet current environmental regulations for restricted substance use.