SFM-110-L2-S-D Equivalent & Substitute Parts

Part Overview

The SFM-110-L2-S-D is a 20-position receptacle connector from Samtec Inc.'s Tiger Eye™ SFM series, designed for surface mount board-to-board or cable applications. This connector features 0.050" (1.27mm) pitch mating with gold-plated contacts rated for 3.2A per contact at 250VAC. The part is active in production status with 1002 units currently in stock. Equivalent and substitute parts within the SFM-110 base product family maintain identical electrical and mechanical specifications while offering alternative feature configurations, fastening options, or board integration enhancements.

Key Parameters

Parameter	Specification
Connector Type	Receptacle
Number of Positions	20
Pitch - Mating	0.050" (1.27mm)
Number of Rows	2
Row Spacing - Mating	0.050" (1.27mm)
Mounting Type	Surface Mount
Contact Finish - Mating	Gold (30.0µin / 0.76µm)
Current Rating	3.2A per Contact
Voltage Rating	250VAC
Operating Temperature	-55°C ~ 125°C
Material Flammability	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

All substitute parts listed maintain the core electrical and mechanical parameters that define functional compatibility: 20-position receptacle configuration, 0.050" (1.27mm) pitch, 2-row layout, surface mount termination, gold contact finish, 3.2A current rating, and 250VAC voltage rating. Substitution differences are limited to optional features and board integration enhancements that do not alter the fundamental connector interface or electrical performance.

Substitution is determined by the following invariant parameters:

Connector type (Receptacle)
Position count (20)
Mating pitch (0.050")
Row configuration (2 rows)
Contact finish (Gold)
Current and voltage ratings
Operating temperature range
Flammability and RoHS compliance

Variable parameters that distinguish substitute parts include fastening mechanism variants (Push-Pull standard), optional board guides, pick-and-place features, board lock mechanisms, and solder retention enhancements. These features provide design flexibility without compromising electrical or mechanical interface compatibility.

Parameter Comparison

Part Number	Connector Type	Positions	Pitch (Mating)	Rows	Mounting	Contact Finish	Current Rating	Voltage Rating	Operating Temp	Features	Inventory
SFM-110-L2-S-D	Receptacle	20	0.050"	2	Surface Mount	Gold	3.2A	250VAC	-55°C ~ 125°C	—	1002
SFM-110-02-L-D-K	Receptacle	20	0.050"	2	Surface Mount	Gold	3.2A	250VAC	-55°C ~ 125°C	Pick and Place	998
SFM-110-02-S-D	Receptacle	20	0.050"	2	Surface Mount	Gold	3.2A	250VAC	-55°C ~ 125°C	—	956
SFM-110-02-S-D-A	Receptacle	20	0.050"	2	Surface Mount	Gold	3.2A	250VAC	-55°C ~ 125°C	Board Guide	2070
SFM-110-02-S-D-A-K	Receptacle	20	0.050"	2	Surface Mount	Gold	3.2A	250VAC	-55°C ~ 125°C	Board Guide, Pick and Place	3826
SFM-110-02-S-D-A-P	Receptacle	20	0.050"	2	Surface Mount	Gold	3.2A	250VAC	-55°C ~ 125°C	Board Guide, Pick and Place	1120
SFM-110-02-S-D-LC	Receptacle	20	0.050"	2	Surface Mount	Gold	3.2A	250VAC	-55°C ~ 125°C	Board Lock	4915
SFM-110-02-S-D-SN	Receptacle	20	0.050"	2	Surface Mount	Gold	3.2A	250VAC	-55°C ~ 125°C	Solder Retention	720
SFM-110-L2-S-D-A	Receptacle	20	0.050"	2	Surface Mount	Gold	3.2A	250VAC	-55°C ~ 125°C	Board Guide	1229
SFM-110-L2-S-D-LC	Receptacle	20	0.050"	2	Surface Mount	Gold	3.2A	250VAC	-55°C ~ 125°C	Board Lock	980
SFM-110-T2-S-D	Receptacle	20	0.050"	2	Surface Mount	Gold	3.2A	250VAC	-55°C ~ 125°C	—	711

Engineering Selection Recommendations

All listed substitute parts are active production components with ROHS3 compliance and Moisture Sensitivity Level 1 (unlimited shelf life). Selection among equivalent parts should be based on specific board design requirements and assembly process capabilities.

For applications requiring enhanced board alignment during assembly, SFM-110-02-S-D-A, SFM-110-02-S-D-A-K, SFM-110-02-S-D-A-P, SFM-110-L2-S-D-A, and SFM-110-L2-S-D-LC variants incorporate board guide or board lock features. These options provide mechanical positioning assistance without altering electrical interface specifications.

For automated assembly environments, SFM-110-02-L-D-K, SFM-110-02-S-D-A-K, and SFM-110-02-S-D-A-P include pick-and-place features that facilitate machine handling during production.

For applications with stringent solder joint reliability requirements, SFM-110-02-S-D-SN provides solder retention enhancement. This variant is REACH Affected; verify compliance requirements for your application.

Inventory availability ranges from 711 to 4915 units across the substitute family, with SFM-110-02-S-D-LC offering the highest stock level at 4915 units.

Frequently Asked Questions (FAQ)

Q: Are all listed parts electrically interchangeable with SFM-110-L2-S-D?

A: Yes. All substitute parts maintain identical electrical specifications: 20-position receptacle configuration, 0.050" (1.27mm) pitch, 3.2A per contact current rating, and 250VAC voltage rating. Mating interface compatibility is guaranteed across all variants.

Q: What is the difference between parts with "L2," "02," and "T2" designations?

A: These designations represent different internal contact configurations or row spacing variants within the SFM-110 base product family. All maintain the specified 0.050" (1.27mm) mating pitch and 2-row layout. Consult detailed mechanical drawings for specific dimensional differences.

Q: Can I substitute a part with board guide features for one without?

A: Yes, from an electrical and mechanical interface perspective. Board guide variants (designated with "-A" suffix) provide additional mechanical positioning but do not alter the connector's electrical performance or mating interface. Verify PCB layout compatibility with the specific variant's mechanical envelope.

Q: What does the "-LC" suffix indicate?

A: The "-LC" suffix designates board lock features, which provide mechanical retention between mated connectors. This feature does not affect electrical specifications and is compatible with standard mating interfaces.

Q: Are there REACH compliance differences among the substitute parts?

A: SFM-110-02-S-D-SN is listed as REACH Affected, while all other variants are REACH Unaffected. Verify REACH compliance requirements for your specific application and supply chain.

Q: What is the significance of the "-K" suffix?

A: The "-K" suffix indicates pick-and-place features designed to facilitate automated assembly machine handling. This feature does not affect electrical or standard mechanical interface specifications.

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