HTST-108-04-S-D-RA Equivalent & Substitute Parts

Part Overview

The HTST-108-04-S-D-RA is a rectangular connector header manufactured by Samtec Inc., designed for through-hole, right-angle board-to-cable/wire applications. This shrouded 16-position connector operates across -55°C to 125°C and is actively produced. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity when the primary part becomes unavailable or when alternative series options are required.

Substiute Parts

HTST-108-04-S-D-RA

Samtec Inc.In Stock: 895HTST-108-04-S-D-RA Datasheet

Current PartRFQ

TST-108-04-S-D-RA

Samtec Inc.In Stock: 2269TST-108-04-S-D-RA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HTST-108-04-S-D-RA are identified based on electrical and mechanical compatibility within the following critical parameters:

• Connector Type: Header
• Contact Type: Male Pin
• Number of Positions: 16
• Number of Rows: 2
• Pitch - Mating: 0.100" (2.54mm)
• Row Spacing - Mating: 0.100" (2.54mm)
• Mounting Type: Through Hole, Right Angle
• Shrouding: Shrouded - 4 Wall
• 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
• Current Rating: 3.4A per Contact
• Operating Temperature: -55°C ~ 125°C
• Material Flammability Rating: UL94 V-0
• RoHS Status: ROHS3 Compliant

The TST-108-04-S-D-RA meets all critical electrical and mechanical parameters required for direct substitution. Differences in insulation material and color do not affect functional compatibility in this application category.

Parameter Comparison

Engineering Selection Recommendations

Both the HTST-108-04-S-D-RA and TST-108-04-S-D-RA are active products manufactured by Samtec Inc. and meet ROHS3 compliance and UL94 V-0 flammability requirements. The parts are electrically and mechanically equivalent across all critical connector parameters including pitch, contact configuration, current rating, and operating temperature range.

The TST-108-04-S-D-RA offers higher inventory availability (2200 pcs vs. 825 pcs) and is suitable for direct substitution in applications where the insulation material composition and color are not design-critical constraints.

Frequently Asked Questions (FAQ)

Q: Can TST-108-04-S-D-RA be used as a direct replacement for HTST-108-04-S-D-RA?

A: Yes. Both parts share identical electrical and mechanical specifications including connector type, contact configuration, pitch, current rating, and operating temperature range. The parts differ only in insulation material (LCP vs. PBT glass-filled) and color, which do not affect functional compatibility in standard board-to-cable/wire applications.

Q: What are the key compatibility parameters for this connector family?

A: Critical parameters include 16-position, 2-row configuration with 0.100" (2.54mm) pitch, through-hole right-angle mounting, shrouded 4-wall design, square contact shape, gold mating finish, and 3.4A per contact current rating. All substitute parts must match these specifications.

Q: Are there differences in moisture sensitivity between these parts?

A: The HTST-108-04-S-D-RA lists MSL as Not Applicable, while the TST-108-04-S-D-RA is rated MSL 1 (Unlimited). This difference reflects the insulation material composition and does not affect connector performance in standard operating conditions.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the HTST-108-04-S-D-RA and TST-108-04-S-D-RA are ROHS3 compliant and carry UL94 V-0 material flammability ratings. Both are classified as EAR99 for export control purposes.