HTMS-104-02-G-S-RA Equivalent & Substitute Parts

Part Overview

The HTMS-104-02-G-S-RA is a rectangular connector header manufactured by Samtec Inc., designed for through-hole, right-angle board-to-board applications. This unshrouded header features 4 positions at 0.050" (1.27mm) pitch with male pin contacts and solder termination. The connector is actively produced and stocked, with 842 units available in inventory. Finding equivalent substitute parts is necessary to ensure supply chain flexibility, optimize procurement costs, and maintain design compatibility across multiple sourcing channels.

Substiute Parts

HTMS-104-02-G-S-RA

Samtec Inc.In Stock: 861HTMS-104-02-G-S-RA Datasheet

Current PartRFQ

5-104186-1

TE Connectivity AMP ConnectorsIn Stock: 15005-104186-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HTMS-104-02-G-S-RA is determined by the following critical parameters:

• Connector Type & Contact Type: Must be a header with male pin contacts for board-to-board connectivity
• Pitch and Position Count: Must maintain 0.050" (1.27mm) mating pitch with 4 positions in a single row
• Mounting Configuration: Must support through-hole, right-angle mounting with solder termination
• Electrical & Environmental Compliance: Must meet UL94 V-0 flammability rating and ROHS3 compliance
• Moisture Sensitivity: MSL 1 rating ensures unlimited shelf life without special handling

The substitute part 5-104186-1 (TE Connectivity AMP Connectors) satisfies these core substitution criteria, enabling direct functional replacement in board-to-board applications requiring 0.050" pitch headers with push-pull fastening.

Parameter Comparison

Engineering Selection Recommendations

Both the HTMS-104-02-G-S-RA and 5-104186-1 are active production parts with ROHS3 compliance and UL94 V-0 flammability certification, meeting regulatory requirements for industrial and commercial applications. The Samtec connector operates across a wider temperature range (-55°C to 125°C) compared to the TE Connectivity substitute (-65°C to 105°C), making the Samtec part suitable for extended temperature environments. The TE Connectivity part offers higher inventory availability (1460 units versus 842 units), providing supply chain advantages. Contact finish differences (gold post on Samtec versus tin post on TE Connectivity) and insulation material variations (LCP versus thermoplastic) do not affect functional substitution for standard board-to-board applications. Selection should be based on temperature requirements, inventory availability, and procurement lead times.

Frequently Asked Questions (FAQ)

Q: Can the 5-104186-1 directly replace the HTMS-104-02-G-S-RA in existing designs?

A: Yes, both connectors share identical mating pitch (0.050"), position count (4), mounting type (through-hole right-angle), and fastening mechanism (push-pull). Direct mechanical and electrical substitution is supported for board-to-board applications.

Q: What are the key differences between these two parts?

A: The primary differences are operating temperature range (Samtec: -55°C to 125°C; TE: -65°C to 105°C), insulation material (Samtec: LCP; TE: thermoplastic), contact shape (Samtec: square; TE: circular), and post finish (Samtec: gold; TE: tin). These differences do not affect functional compatibility for standard applications.

Q: Does packaging format affect compatibility?

A: No. The Samtec part is supplied in bulk packaging while the TE Connectivity part is supplied in tube packaging. Both formats contain the same connector specifications and are suitable for assembly operations.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the HTMS-104-02-G-S-RA and 5-104186-1 are ROHS3 compliant and carry UL94 V-0 flammability certification. Both have MSL 1 moisture sensitivity rating, requiring no special storage or handling conditions.

Q: Which part should be selected for high-temperature applications?

A: The HTMS-104-02-G-S-RA is recommended for applications requiring operation above 105°C, as it supports temperatures up to 125°C. The 5-104186-1 is limited to 105°C maximum.