HTMS-108-02-S-S Equivalent & Substitute Parts

Part Overview

The HTMS-108-02-S-S is a rectangular connector header manufactured by Samtec Inc., designed for through-hole board-to-board applications. This 8-position, 0.050" (1.27mm) pitch connector features male pins with gold-plated mating contacts and tin-plated posts, operating across -55°C to 125°C. The part is actively produced and ROHS3 compliant, making it suitable for industrial and commercial applications requiring reliable interconnection in compact form factors.

Substitute parts are identified when equivalent electrical and mechanical parameters align with the core functional requirements: pitch, number of positions, contact type, mounting method, and termination style.

Substiute Parts

HTMS-108-02-S-S

Samtec Inc.In Stock: 962HTMS-108-02-S-S Datasheet

Current PartRFQ

5-104178-5

TE Connectivity AMP ConnectorsIn Stock: 47645-104178-5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HTMS-108-02-S-S is determined by strict alignment of the following core parameters:

• Pitch - Mating: 0.050" (1.27mm) — mechanical compatibility with mating connectors
• Number of Positions: 8 — circuit density and pin count
• Connector Type: Header — functional role in board-to-board interconnection
• Contact Type: Male Pin — gender compatibility
• Mounting Type: Through Hole — PCB assembly method
• Termination: Solder — connection method to PCB
• Shrouding: Unshrouded — form factor and accessibility
• Contact Finish - Mating: Gold — electrical performance and corrosion resistance
• Material Flammability Rating: UL94 V-0 — safety compliance

The substitute part 5-104178-5 (TE Connectivity AMP Connectors) meets all core substitution criteria. Variations in secondary parameters such as insulation material (Thermoplastic vs. LCP), contact material (Copper Alloy vs. Phosphor Bronze), and operating temperature range do not preclude functional equivalence when the primary parameters align.

Parameter Comparison

Engineering Selection Recommendations

Both the HTMS-108-02-S-S and 5-104178-5 are actively produced components with ROHS3 compliance and UL94 V-0 flammability ratings. Selection between these parts should be based on application-specific requirements:

The HTMS-108-02-S-S offers a wider operating temperature range (-55°C to 125°C) and specified current rating of 5A per contact, making it suitable for high-temperature industrial environments and applications with defined power delivery requirements.

The 5-104178-5 provides a specified voltage rating of 30VAC and broader style compatibility (Board to Board or Cable), offering flexibility in interconnection topology. Its operating range (-65°C to 105°C) is suitable for standard commercial and telecommunications applications.

Both parts feature identical pitch, position count, contact finish specifications, and flammability ratings, ensuring mechanical and electrical interchangeability within their respective operating parameters.

Frequently Asked Questions (FAQ)

Q: Can the 5-104178-5 directly replace the HTMS-108-02-S-S in all applications?

A: Direct replacement is possible when the application operates within the 5-104178-5 temperature range (-65°C to 105°C) and does not exceed 30VAC. The HTMS-108-02-S-S is required for applications exceeding 125°C or requiring the specified 5A per contact current rating.

Q: What is the significance of the 0.050" (1.27mm) pitch specification?

A: Pitch determines mechanical compatibility with mating connectors and receptacles. Both parts share identical 0.050" pitch, ensuring they mate with the same connector family and maintain consistent PCB footprints.

Q: Are there packaging differences between these parts?

A: The HTMS-108-02-S-S is supplied in Tube packaging, while the 5-104178-5 is supplied in Bulk packaging. This affects handling and storage but does not impact electrical or mechanical performance.

Q: Why do the parts specify different insulation materials?

A: The HTMS-108-02-S-S uses Liquid Crystal Polymer (LCP) for superior thermal and dimensional stability, while the 5-104178-5 uses Thermoplastic. Both materials meet UL94 V-0 flammability requirements. Material selection depends on application thermal cycling and mechanical stress requirements.

Q: What does "Number of Positions Loaded: All" mean?

A: This indicates that all 8 contact positions are populated with male pins. No empty or reserved positions exist in the connector header.

Q: Are both parts suitable for automotive applications?

A: The 5-104178-5 explicitly lists automotive applications. The HTMS-108-02-S-S does not specify applications but meets automotive-grade temperature and compliance requirements. Verification against specific automotive standards (AEC-Q200, etc.) is required for both parts.