STMM-107-02-F-D-SM Equivalent & Substitute Parts

Part Overview

The STMM-107-02-F-D-SM is a rectangular connector header manufactured by Samtec Inc., designed for surface mount applications. This connector features 14 positions arranged in 2 rows with a 0.079" (2.00mm) pitch, utilizing a shrouded 4-wall design with push-pull fastening. The part is actively produced and ROHS3 compliant, making it suitable for modern electronic assemblies requiring board-to-cable/wire connectivity.

Identifying equivalent and substitute parts is necessary when the primary part number becomes unavailable, when inventory constraints require alternative sourcing, or when design flexibility permits selection from compatible connector families within the same manufacturer's product line.

Substiute Parts

STMM-107-02-F-D-SM

Samtec Inc.In Stock: 828STMM-107-02-F-D-SM Datasheet

Current PartRFQ

LTMM-107-02-F-D-SM

Samtec Inc.In Stock: 1624LTMM-107-02-F-D-SM Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the STMM-107-02-F-D-SM is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Connector Type: Header
• Contact Type: Male Pin
• Number of Positions: 14
• Number of Rows: 2
• Pitch - Mating: 0.079" (2.00mm)
• Row Spacing - Mating: 0.079" (2.00mm)
• Mounting Type: Surface Mount
• Shrouding: Shrouded - 4 Wall
• Fastening Type: Push-Pull
• Contact Shape: Square
• Insulation Material: Liquid Crystal Polymer (LCP)
• Contact Material: Phosphor Bronze
• Contact Finish - Mating: Gold
• Contact Finish - Post: Tin
• Termination: Solder
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation Parameters:

• Series designation (STMM vs. LTMM)
• Style (Board to Cable/Wire vs. Board to Board)
• Operating Temperature range (provided minimum is maintained)
• Current Rating (provided minimum is maintained)

The LTMM-107-02-F-D-SM qualifies as a substitute based on matching all mandatory parameters while differing in style (Board to Board vs. Board to Cable/Wire) and operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

Both the STMM-107-02-F-D-SM and LTMM-107-02-F-D-SM are active products manufactured by Samtec Inc. and maintain ROHS3 compliance with MSL 1 rating, ensuring regulatory and environmental suitability for current electronic assembly standards.

The primary distinction between these parts is application context: the STMM series is configured for board-to-cable/wire connections, while the LTMM series is designed for board-to-board connections. Selection between these parts depends on the specific interconnect requirement of the application.

The STMM-107-02-F-D-SM supports an operating temperature range of -55°C to 125°C, while the LTMM-107-02-F-D-SM operates from -55°C to 105°C. Applications requiring operation above 105°C necessitate the STMM variant.

Both parts share identical electrical and mechanical specifications for pitch, position count, contact geometry, materials, and finishes, ensuring functional compatibility within their respective application contexts.

Frequently Asked Questions (FAQ)

Q: Can the LTMM-107-02-F-D-SM be used as a direct replacement for the STMM-107-02-F-D-SM?

A: Substitution is possible only if the application permits board-to-board connectivity instead of board-to-cable/wire connectivity, and if the operating temperature requirement does not exceed 105°C. The electrical and mechanical interface specifications are identical.

Q: What is the significance of the series designation (STMM vs. LTMM)?

A: The series designation indicates the connector family and intended application style. STMM connectors are optimized for board-to-cable/wire applications, while LTMM connectors are optimized for board-to-board applications. Both series share the same contact pitch, position count, and fundamental electrical characteristics.

Q: Are there any packaging or inventory considerations when selecting between these parts?

A: The STMM-107-02-F-D-SM is available with 755 pieces in stock, while the LTMM-107-02-F-D-SM has 1552 pieces in stock. Both are supplied in tube packaging. Inventory availability may influence sourcing decisions based on project timelines.

Q: What are the critical parameters that must match for substitution?

A: Substitution requires matching of connector type, contact type, position count, row configuration, pitch specifications, mounting type, shrouding design, fastening mechanism, contact geometry, insulation material, contact materials, finishes, termination method, and compliance certifications. Variations in application style and operating temperature range are allowable provided design requirements are satisfied.

Q: Is the LTMM-107-02-F-D-SM suitable for high-temperature applications?

A: The LTMM-107-02-F-D-SM operates to a maximum of 105°C. Applications requiring sustained operation above 105°C require the STMM-107-02-F-D-SM, which is rated to 125°C.