HTST-105-04-F-D-RA Equivalent & Substitute Parts

Part Overview

The HTST-105-04-F-D-RA is an active rectangular connector header manufactured by Samtec Inc. This through-hole, right-angle connector is designed for board-to-cable/wire applications with 10 positions arranged in 2 rows at 0.100" (2.54mm) pitch. The connector features shrouded 4-wall construction with push-pull fastening and gold-plated mating contacts. Identifying equivalent and substitute parts is necessary when managing inventory constraints, ensuring supply chain continuity, or matching specific application requirements within the Flex Stack connector family.

Substiute Parts

HTST-105-04-F-D-RA

Samtec Inc.In Stock: 1127HTST-105-04-F-D-RA Datasheet

Current PartRFQ

HTSS-105-04-F-D-RA

Samtec Inc.In Stock: 2161HTSS-105-04-F-D-RA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HTST-105-04-F-D-RA is determined by strict equivalence across the following critical parameters:

• Pitch - Mating: 0.100" (2.54mm)
• Number of Positions: 10
• Number of Rows: 2
• Row Spacing - Mating: 0.100" (2.54mm)
• Connector Type: Header
• Contact Type: Male Pin
• Mounting Type: Through Hole, Right Angle
• Shrouding: Shrouded - 4 Wall
• Termination: Solder
• Fastening Type: Push-Pull
• Contact Length - Mating: 0.250" (6.35mm)
• Contact Length - Post: 0.130" (3.30mm)
• Insulation Height: 0.365" (9.27mm)
• Contact Shape: Square
• Contact Finish - Mating: Gold
• Contact Finish - Post: Tin
• Contact Material: Phosphor Bronze
• Insulation Material: Liquid Crystal Polymer (LCP)
• Operating Temperature: -55°C ~ 125°C
• Material Flammability Rating: UL94 V-0

The HTSS-105-04-F-D-RA qualifies as a substitute part because it maintains equivalence across all critical electrical and mechanical parameters. Both parts belong to the Samtec Flex Stack connector family and share identical mating pitch, position count, row configuration, contact geometry, and environmental ratings.

Parameter Comparison

Engineering Selection Recommendations

Both the HTST-105-04-F-D-RA and HTSS-105-04-F-D-RA are active products manufactured by Samtec Inc. with ROHS3 compliance and UL94 V-0 flammability certification. Selection between these parts should be based on application-specific requirements regarding connector style: the HTST series is designated for board-to-cable/wire applications, while the HTSS series accommodates board-to-board or cable configurations. Both parts maintain identical electrical and mechanical specifications across all critical parameters, ensuring functional interchangeability within their respective application contexts.

Frequently Asked Questions (FAQ)

Q: Can HTSS-105-04-F-D-RA be used as a direct replacement for HTST-105-04-F-D-RA?

A: The HTSS-105-04-F-D-RA maintains electrical and mechanical equivalence with the HTST-105-04-F-D-RA across all critical parameters including pitch, position count, contact geometry, and environmental ratings. The primary distinction is application style: HTST is specified for board-to-cable/wire connections, while HTSS supports board-to-board or cable configurations. Substitution is valid when the application requirements align with the HTSS style designation.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution eligibility is determined by equivalence in mating pitch (0.100"), position count (10), row configuration (2 rows at 0.100" spacing), contact geometry (square shape, 0.250" mating length, 0.130" post length), contact materials and finishes (phosphor bronze with gold mating and tin post), insulation material (LCP), operating temperature range (-55°C ~ 125°C), and flammability rating (UL94 V-0).

Q: Are there differences in current rating between these parts?

A: The HTST-105-04-F-D-RA specifies a current rating of 3.4A per contact. The HTSS-105-04-F-D-RA does not provide a current rating specification in the available data. Applications requiring confirmed current capacity should reference the HTST-105-04-F-D-RA specification.

Q: What is the difference between the HTST and HTSS series?

A: Both series are part of the Samtec Flex Stack connector family. The HTST series is optimized for board-to-cable/wire applications, while the HTSS series is designed for board-to-board or cable configurations. Electrical and mechanical specifications remain equivalent across both series for this 10-position, 2-row connector configuration.

Q: Are both parts RoHS compliant?

A: Yes, both the HTST-105-04-F-D-RA and HTSS-105-04-F-D-RA are ROHS3 compliant. The HTSS-105-04-F-D-RA additionally carries REACH Unaffected status.

Q: What packaging is available for these parts?

A: Both parts are supplied in tube packaging.