HTST-112-01-G-D Equivalent & Substitute Parts

Part Overview

The HTST-112-01-G-D is a rectangular connector header manufactured by Samtec Inc., designed for through-hole mounting applications. This vertical 24-position connector operates at 0.100" (2.54mm) pitch and features shrouded 4-wall construction with push-pull fastening. The part is currently active in production and maintains full inventory availability. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility permits component interchange based on electrical and mechanical compatibility.

Substiute Parts

HTST-112-01-G-D

Samtec Inc.In Stock: 1174HTST-112-01-G-D Datasheet

Current PartRFQ

2-1761603-8

TE Connectivity AMP ConnectorsIn Stock: 20442-1761603-8 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HTST-112-01-G-D is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Connector Type: Header
• Contact Type: Male Pin
• Number of Positions: 24
• 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
• Fastening Type: Push-Pull
• Termination: Solder
• Style: Board to Cable/Wire
• Contact Shape: Square

The substitute part 2-1761603-8 (TE Connectivity AMP Connectors) satisfies all mandatory matching parameters, establishing mechanical and electrical compatibility for direct interchange in applications where the specified performance envelope is maintained.

Parameter Comparison

Engineering Selection Recommendations

Both the HTST-112-01-G-D and 2-1761603-8 maintain active production status and comply with ROHS3 and REACH requirements. Both parts carry UL94 V-0 flammability certification and feature unlimited moisture sensitivity level (MSL 1) classification.

The primary distinction between these parts lies in current rating capacity and operating temperature range. The HTST-112-01-G-D supports 3.4A per contact across an operating range of -55°C to 125°C, while the 2-1761603-8 supports 1A per contact across -65°C to 105°C. Applications requiring the full current capacity of the primary part should not substitute with the TE Connectivity alternative. Conversely, applications operating within the lower current envelope and narrower temperature range may utilize the substitute part.

Contact finish differences on the post (gold versus tin) and insulation material composition (LCP versus PBT) represent secondary variations that do not affect mechanical interchangeability but may influence long-term reliability characteristics in specific environmental conditions.

Frequently Asked Questions (FAQ)

Q: Can 2-1761603-8 be used as a direct replacement for HTST-112-01-G-D in all applications?

A: Direct replacement is mechanically and electrically feasible only in applications where current requirements do not exceed 1A per contact and operating temperatures remain within -65°C to 105°C. Applications requiring the 3.4A per contact capacity of the primary part cannot use this substitute.

Q: What are the key differences in contact geometry between these parts?

A: Contact length specifications differ slightly. The HTST-112-01-G-D mating contact length is 0.250" (6.35mm) with a post length of 0.115" (2.92mm), while the 2-1761603-8 mating contact length is 0.240" (6.10mm) with a post length of 0.102" (2.60mm). Both maintain identical insulation height of 0.350" (8.89mm).

Q: Are there compliance or certification differences between these parts?

A: Both parts are ROHS3 compliant, REACH unaffected, and carry UL94 V-0 flammability ratings. Both maintain MSL 1 (unlimited) moisture sensitivity classification. No compliance disadvantage exists for either part.

Q: How do the insulation materials differ?

A: The HTST-112-01-G-D uses Liquid Crystal Polymer (LCP) insulation, while the 2-1761603-8 uses Polybutylene Terephthalate (PBT). Both materials meet the specified flammability requirements. Material selection may influence performance in specific chemical or thermal environments.

Q: What is the significance of the contact finish difference?

A: The HTST-112-01-G-D features gold plating on both mating and post contacts, while the 2-1761603-8 uses gold on mating contacts and tin on post contacts. This difference does not affect mechanical interchangeability but may influence corrosion resistance and solderability characteristics in specific applications.

Q: Are both parts suitable for through-hole PCB assembly?

A: Yes. Both parts feature solder termination and through-hole mounting type, making them compatible with standard PCB assembly processes.