HTMS-115-02-G-S-RA Equivalent & Substitute Parts

Part Overview

The HTMS-115-02-G-S-RA is a through-hole micro header connector manufactured by Samtec Inc., designed for board-to-board applications. This right-angle header features 15 positions with 0.050" (1.27mm) pitch spacing and is rated for 5A per contact. The connector is currently in active product status with 998 pieces available in stock.

Substitute parts become necessary when the primary component experiences supply constraints, extended lead times, or when design requirements permit alternative configurations that maintain electrical and mechanical compatibility within specified parameters.

Substiute Parts

HTMS-115-02-G-S-RA

Samtec Inc.In Stock: 1103HTMS-115-02-G-S-RA Datasheet

Current PartRFQ

5-104186-9

TE Connectivity AMP ConnectorsIn Stock: 9795-104186-9 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HTMS-115-02-G-S-RA is determined by the following critical parameters:

Primary Matching Criteria:

• Pitch - Mating: 0.050" (1.27mm)
• Number of Positions: 15
• Number of Rows: 1
• Connector Type: Header
• Contact Type: Male Pin
• Mounting Type: Through Hole, Right Angle
• Termination: Solder
• Fastening Type: Push-Pull
• Style: Board to Board or Board to Board/Cable

Secondary Compatibility Parameters:

• Shrouding: Unshrouded
• Contact Finish - Mating: Gold
• Material Flammability Rating: UL94 V-0
• RoHS Status: ROHS3 Compliant

The substitute part 5-104186-9 from TE Connectivity AMP Connectors satisfies all primary matching criteria and secondary compatibility parameters. Variations in contact geometry (circular vs. square), insulation material composition (thermoplastic vs. LCP), and contact dimensions represent acceptable engineering tolerances within the rectangular connector category for this application class.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: HTMS-115-02-G-S-RA

The HTMS-115-02-G-S-RA maintains active product status with robust inventory availability (998 pieces). This connector is ROHS3 compliant and carries UL94 V-0 flammability certification. The operating temperature range of -55°C to 125°C and 5A per contact current rating are specified for this component. Selection of the primary part is recommended for new designs and applications requiring long-term supply continuity.

Substitute Selection: 5-104186-9

The TE Connectivity 5-104186-9 is electrically and mechanically compatible based on matching pitch, position count, mounting configuration, and fastening type. This part is ROHS3 compliant and UL94 V-0 rated. However, the product status is listed as discontinued at DiGi Electronics, which restricts its use to applications where existing inventory is available or where supply from alternative distribution channels is confirmed. The operating temperature range (-65°C to 105°C) is narrower than the primary part at the upper limit. The contact finish thickness on the mating surface is thicker (30.0µin vs. 10.0µin), which may provide enhanced durability in high-cycle mating applications.

Selection of the substitute part is appropriate only when the primary part is unavailable and when the narrower upper temperature limit (105°C vs. 125°C) does not conflict with application requirements.

Frequently Asked Questions (FAQ)

Q: What are the critical parameters that determine if a part can substitute for the HTMS-115-02-G-S-RA?

A: The critical parameters are pitch (0.050" / 1.27mm), position count (15), row configuration (1 row), connector type (header), contact type (male pin), mounting style (through-hole right angle), termination method (solder), and fastening type (push-pull). All substitute parts must match these specifications exactly.

Q: How do the contact dimensions differ between the main part and substitute?

A: The HTMS-115-02-G-S-RA has a contact length - mating of 0.100" (2.54mm) and insulation height of 0.096" (2.44mm). The 5-104186-9 has a contact length - mating of 0.125" (3.18mm) and insulation height of 0.116" (2.95mm). These dimensional differences may affect board layout and mating depth considerations.

Q: What is the difference in contact geometry between these parts?

A: The HTMS-115-02-G-S-RA uses square contact shapes, while the 5-104186-9 uses circular contact shapes. Both configurations are unshrouded headers with gold-plated mating surfaces and are compatible with push-pull fastening systems.

Q: Are there temperature rating differences I should consider?

A: The HTMS-115-02-G-S-RA operates from -55°C to 125°C, while the 5-104186-9 operates from -65°C to 105°C. The substitute part has a lower upper temperature limit by 20°C. Applications requiring operation above 105°C must use the primary part.

Q: What is the current rating for each connector?

A: The HTMS-115-02-G-S-RA is rated for 5A per contact. The 5-104186-9 does not specify a current rating in the provided data. Verify current requirements with the connector manufacturer before substitution.

Q: Why is the 5-104186-9 listed as discontinued?

A: The 5-104186-9 is discontinued at DiGi Electronics, a major electronics distributor. This does not indicate the part is obsolete globally, but rather that this specific distributor no longer stocks it. Availability through other channels should be confirmed before design implementation.

Q: Can the 5-104186-9 be used in board-to-cable applications?

A: The 5-104186-9 is specified for board-to-board or cable applications, while the HTMS-115-02-G-S-RA is specified for board-to-board only. The substitute part offers broader application flexibility in this regard.

Q: What compliance certifications do both parts carry?

A: Both the HTMS-115-02-G-S-RA and 5-104186-9 are ROHS3 compliant and carry UL94 V-0 material flammability ratings. Both are suitable for applications requiring these certifications.