MTMM-109-09-SM-D-355 Equivalent & Substitute Parts

Part Overview

The MTMM-109-09-SM-D-355 is a rectangular connector header manufactured by Samtec Inc., designed for through-hole mounting applications. This vertical header connector features 18 positions arranged in 2 rows with 0.079" (2.00mm) pitch spacing, suitable for board-to-board or cable interconnections. The connector is actively produced and maintains full inventory availability. Substitute parts are identified to support procurement flexibility, design revisions, and supply chain continuity.

Substiute Parts

MTMM-109-09-SM-D-355

Samtec Inc.In Stock: 1085MTMM-109-09-SM-D-355 Datasheet

Current PartRFQ

MTMM-109-09-S-D-355

Samtec Inc.In Stock: 700MTMM-109-09-S-D-355 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MTMM-109-09-SM-D-355 is determined by strict equivalence across the following critical parameters:

Contact configuration: 18 positions, 2 rows, male pin type Pitch specifications: 0.079" (2.00mm) mating pitch and row spacing Mechanical dimensions: Contact lengths (mating, post, and overall), insulation height Material composition: Phosphor bronze contacts with gold mating finish and tin post finish; Liquid Crystal Polymer insulation Electrical performance: 3A current rating, operating temperature range -55°C ~ 125°C Compliance: ROHS3 compliance, UL94 V-0 flammability rating, MSL 1 Mounting and termination: Through-hole solder termination, push-pull fastening

The substitute part MTMM-109-09-S-D-355 maintains identical specifications across all these parameters, differing only in internal design designation (S versus SM suffix). Both parts are manufactured by Samtec Inc. within the MTMM series and are actively produced.

Parameter Comparison

Engineering Selection Recommendations

Both the MTMM-109-09-SM-D-355 and MTMM-109-09-S-D-355 are active products manufactured by Samtec Inc. and maintain full compliance with ROHS3 regulations and UL94 V-0 flammability standards. Selection between these parts is based on availability and procurement requirements rather than functional or electrical differences.

The MTMM-109-09-SM-D-355 maintains current inventory of 996 pieces. The MTMM-109-09-S-D-355 provides an alternative source with 642 pieces in stock. Both parts are suitable for applications requiring 18-position, 2-row through-hole header connectors with 2.00mm pitch spacing and 3A current capacity across the -55°C to 125°C operating range.

Frequently Asked Questions (FAQ)

Q: Are MTMM-109-09-SM-D-355 and MTMM-109-09-S-D-355 electrically and mechanically interchangeable?

A: Yes. Both parts share identical electrical and mechanical specifications, including contact configuration, pitch spacing, contact materials, finishes, current rating, and operating temperature range. The difference in part number suffix (SM versus S) reflects internal design designation only and does not affect functional compatibility.

Q: What determines substitution eligibility for this connector header?

A: Substitution is valid when the alternative part maintains identical specifications across contact count (18 positions, 2 rows), pitch (0.079" / 2.00mm), contact materials and finishes, insulation material (LCP), current rating (3A), operating temperature (-55°C ~ 125°C), and compliance certifications (ROHS3, UL94 V-0).

Q: Can these connectors be used in applications requiring different pitch spacing?

A: No. Both parts are specified for 0.079" (2.00mm) mating pitch and row spacing. Applications requiring different pitch spacing require alternative connector models.

Q: What is the significance of the cuttable header designation?

A: The cuttable header feature allows the connector to be segmented to accommodate custom position counts while maintaining the 2.00mm pitch specification. The full 18-position configuration is supplied; individual positions can be separated as needed for specific board layouts.

Q: Are there any moisture sensitivity considerations for storage or handling?

A: Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. Standard component storage practices apply without special humidity control requirements.