SFMC-118-T2-L-D-K Equivalent & Substitute Parts

Part Overview

The SFMC-118-T2-L-D-K is a 36-position receptacle connector from Samtec Inc.'s Tiger Eye™ SFMC series, designed for surface mount board-to-board or cable applications. This connector features 0.050" (1.27mm) pitch mating with gold-plated female socket contacts rated at 2.9A per contact. The part is currently active in production with 1109 units in stock. Alternative part numbers within the same series may be required due to inventory availability, specific procurement requirements, or design revision updates while maintaining full electrical and mechanical compatibility.

Substiute Parts

SFMC-118-T2-L-D-K

Samtec Inc.In Stock: 1158SFMC-118-T2-L-D-K Datasheet

Current PartRFQ

SFMC-118-02-L-D-K

Samtec Inc.In Stock: 842SFMC-118-02-L-D-K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The SFMC-118-02-L-D-K qualifies as a direct substitute for the SFMC-118-T2-L-D-K based on the following critical parameters:

• Identical connector type, receptacle configuration, and 36-position layout
• Matching pitch specification of 0.050" (1.27mm) with 2-row arrangement
• Identical surface mount termination and solder attachment method
• Matching gold contact finish on mating surfaces with identical thickness specification (10.0µin / 0.25µm)
• Identical operating temperature range (-55°C ~ 125°C)
• Identical current rating of 2.9A per contact
• Identical insulation material (Liquid Crystal Polymer) and color (Black)
• Matching mechanical dimensions: 0.185" (4.70mm) insulation height
• Both parts are ROHS3 compliant with MSL 1 (Unlimited) rating
• Both parts share the same base product number (SFMC-118) within the Tiger Eye™ SFMC series

The primary difference lies in the contact material composition, where the substitute uses Beryllium Copper instead of Phosphor Bronze, which does not affect electrical or mechanical compatibility within the specified operating parameters.

Parameter Comparison

Engineering Selection Recommendations

Both the SFMC-118-T2-L-D-K and SFMC-118-02-L-D-K are active production parts with full ROHS3 compliance and identical MSL 1 ratings. Selection between these parts should be based on:

• Inventory availability and procurement lead times
• Design revision control requirements
• Contact material preference (Phosphor Bronze vs. Beryllium Copper) if specified in design documentation
• Supply chain continuity and long-term availability forecasts

Both parts meet all specified electrical, mechanical, and environmental requirements for surface mount 36-position 0.050" pitch receptacle applications with 2.9A per contact current capacity across the -55°C to 125°C operating range.

Frequently Asked Questions (FAQ)

Q: Can SFMC-118-02-L-D-K be used as a direct replacement for SFMC-118-T2-L-D-K in existing designs?

A: Yes. Both parts are electrically and mechanically equivalent within all specified parameters. The contact material difference (Beryllium Copper vs. Phosphor Bronze) does not affect compatibility, as both materials meet the same performance requirements for this connector class.

Q: What is the difference between the two part numbers?

A: The primary difference is the contact material composition. SFMC-118-T2-L-D-K uses Phosphor Bronze contacts, while SFMC-118-02-L-D-K uses Beryllium Copper contacts. All other electrical, mechanical, and environmental specifications are identical.

Q: Are both parts suitable for the same PCB layout and footprint?

A: Yes. Both connectors share identical pitch (0.050"), row spacing (0.050"), insulation height (0.185"), and surface mount termination specifications. No PCB redesign is required when substituting between these parts.

Q: What is the current rating for each contact?

A: Both parts are rated at 2.9A per contact, supporting identical current-carrying capacity across all 36 positions.

Q: Do both parts have the same temperature operating range?

A: Yes. Both SFMC-118-T2-L-D-K and SFMC-118-02-L-D-K operate across the identical temperature range of -55°C to 125°C.

Q: Are both parts RoHS compliant?

A: Yes. Both parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, suitable for standard manufacturing and storage conditions.