LTMM-108-02-G-D-RA Equivalent & Substitute Parts

Part Overview

The LTMM-108-02-G-D-RA is a rectangular connector header manufactured by Samtec Inc., designed for through-hole, right-angle board-to-board applications. This 16-position connector operates across -55°C to 125°C and features shrouded 4-wall construction with gold-plated phosphor bronze contacts. The part is Active status and ROHS3 compliant. Substitute parts may be required due to inventory availability, application-specific interface requirements, or design optimization for board-to-cable/wire configurations.

Substiute Parts

LTMM-108-02-G-D-RA

Samtec Inc.In Stock: 791LTMM-108-02-G-D-RA Datasheet

Current PartRFQ

STMM-108-02-G-D-RA

Samtec Inc.In Stock: 855STMM-108-02-G-D-RA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LTMM-108-02-G-D-RA is determined by the following critical parameters:

• Pitch - Mating: 0.079" (2.00mm)
• Number of Positions: 16
• Number of Rows: 2
• Row Spacing - Mating: 0.079" (2.00mm)
• Contact Type: Male Pin
• Mounting Type: Through Hole, Right Angle
• Shrouding: Shrouded - 4 Wall
• Contact Material: Phosphor Bronze
• Contact Finish - Mating: Gold
• Insulation Material: Liquid Crystal Polymer (LCP)
• Operating Temperature: -55°C ~ 125°C
• RoHS Status: ROHS3 Compliant

The STMM-108-02-G-D-RA qualifies as a substitute part. While it differs in connector style (Board to Cable/Wire versus Board to Board) and includes a specified current rating of 3A, it maintains all critical electrical and mechanical parameters required for functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

Both the LTMM-108-02-G-D-RA and STMM-108-02-G-D-RA are Active status products manufactured by Samtec Inc. and maintain full ROHS3 compliance and REACH Unaffected status. The primary distinction lies in connector style: the LTMM series is configured for board-to-board applications, while the STMM series is configured for board-to-cable/wire applications. Selection between these parts depends on the specific interface requirement of the application. The STMM-108-02-G-D-RA includes a specified current rating of 3A, whereas the LTMM-108-02-G-D-RA does not specify a current rating. Both parts share identical pitch, position count, contact materials, finish specifications, and operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can STMM-108-02-G-D-RA be used as a direct replacement for LTMM-108-02-G-D-RA?

A: Substitution is possible if the application interface requirement permits board-to-cable/wire configuration instead of board-to-board configuration. All electrical and mechanical parameters including pitch, position count, contact materials, and operating temperature are identical.

Q: What is the difference between the LTMM and STMM series?

A: The LTMM series is designed for board-to-board connections, while the STMM series is designed for board-to-cable/wire connections. Both maintain the same 2.00mm pitch, 16-position, 2-row configuration and identical contact specifications.

Q: Are both parts RoHS compliant?

A: Yes, both LTMM-108-02-G-D-RA and STMM-108-02-G-D-RA are ROHS3 compliant and REACH Unaffected.

Q: What is the operating temperature range for these connectors?

A: Both parts operate across -55°C to 125°C.

Q: Does the STMM-108-02-G-D-RA current rating of 3A apply to all contacts?

A: The current rating of 3A is specified for the STMM-108-02-G-D-RA. This parameter is not specified for the LTMM-108-02-G-RA.

Q: Are the contact finishes identical between both parts?

A: Yes, both parts feature gold-plated mating contacts with 20.0µin (0.51µm) thickness and gold-plated posts with 3.00µin (0.076µm) thickness.