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SFM-120-01-SM-D-A

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WSFM 40-Position 1.27mm Board-to-Board Connectors: Replacement for SAMTEC SFM-120-01-SM-D-A

SFM-120-01-SM-D-A
Board-to-Board Connectors
SFM-120-01-SM-D-A
Mfr. Part No. : WSFM-220H01SMDA
Standalone or 100% Samtec-Compatible. Identical Specs. Plug & Play.
Compatible model for SFM-120-01-SM-D-A is WSFM-220H01SMDA. Tiger Eye™ SFM series 1.27mm pitch 2-row connector, 40 pins total. Connector Type: Receptacle, Contact Type: Female Socket, Style: Board to Board or Cable, Number of Positions: 40, Number of Positions Loaded: All, Pitch - Mating: 0.050" (1.27mm), Number of Rows: 2, Row Spacing - Mating: 0.050" (1.27mm), Mounting Type: Through Hole, Termination: Solder, Fastening Type: Push-Pull, Contact Finish - Mating: Gold, Contact Finish Thickness - Mating: 30.0µin (0.76µm), Insulation Color: Black, Insulation Height: 0.180" (4.57mm), Contact Length - Post: 0.120" (3.05mm), Operating Temperature: -55°C ~ 125°C, Material Flammability Rating: UL94 V-0, Contact Finish - Post: Tin, Mated Stacking Heights: 6.02mm, 6.17mm, 7.80mm, 7.95mm, 9.58mm, 9.73mm, 11.48mm, 11.63mm, Ingress Protection: -, Features: Board Guide, Current Rating (Amps): 3.2A per Contact, Voltage Rating: 250VAC
🏷 40 pin connector
Connector Series: WSFM
Number of Pins: 40
Connector Pitch: 1.27mm
Rows: 2
$8.07 $4.47
In Stock (336)

Typical lead time: contact for quote Packaging: Reel with Cover

Datasheet Drawing Request a Quote
Documentation View all

Download connector datasheets. PDFs include product overview, features, pin definitions, pinout diagrams, and technical specifications.

WSFM Series Drawings Size: 1 MB Download PDF SFM-120-01-SM-D-A Datasheet Download PDF
SFM-120-01-SM-D-A Specification Comparison

Specification comparison is for reference only. For detailed drawings, datasheets, or custom specs, email us at connector@worldpo.com.

Part Number SFM-120-01-SM-D-A SFM-120-01-S-D-LC-K SFM-120-01-F-D-A SFM-120-01-S-D
Connector Type Header Header Header Header
Connector Series WSFM WSFM WSFM WSFM
Connector Pitch 1.27mm 1.27mm 1.27mm 1.27mm
Rows 2 2 2 2
Number of Pins 40 40 40 40
Terminal Interface Through-Hole, Vertical (DIP) Through-Hole, Vertical (DIP) Through-Hole, Vertical (DIP) Through-Hole, Vertical (DIP)
Orientation Vertical Vertical Vertical Vertical
Material / Metal Other Other Other Other
Color Black + Ni-plated then Au-plated Violet Red + Ni-plated then Sn-plated Green + Au-plated (15μin)
Rated Voltage (VAC/VDC) 25 500 200 200
Rated Current per Contact (Max.) (A) 2～3A 3～5A 5～10A 5～10A
Plating Gold Plating (Au) Gold Plating (Au) Gold Plating (Au) Gold Plating (Au)
Plating Thickness 1μin（0.025μm） 4μin（0.102μm） 1μin（0.025μm） 15μin（0.381μm）
Packaging Reel with Cover Tray Multi-Layer Reel Multi-Layer Reel
Insulation Diameter (mm) 1.78 3.40 1.10 1.00
Wire Gauge (AWG) 20 16～22 10 20
Operating Temperature -55℃～125℃ -55℃～125℃ -55℃～125℃ -55℃～125℃
Number of Circuits 40 40 40 40
Basic Information

* "The parameters listed are for reference only. For detailed specifications and design drawings, please contact our online technical support team."

Category Board-to-Board Connectors
Connector Type Header
Connector Series WSFM
Connector Pitch 1.27mm
Rows 2
Number of Pins 40
Terminal Interface Through-Hole, Vertical (DIP)
Orientation Vertical
Material / Metal Other
Color Black + Ni-plated then Au-plated
Rated Voltage (VAC/VDC) 25
Rated Current per Contact (Max.) (A) 2～3A
Plating Gold Plating (Au)
Plating Thickness 1μin（0.025μm）
Packaging Reel with Cover
Insulation Diameter (mm) 1.78
Wire Gauge (AWG) 20
Operating Temperature -55℃～125℃
Number of Circuits 40
Product FAQ

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Frequently Asked Questions

3 questions

  • Q: What is the pitch and pin count of this connector? Is it in stock?

    This WSFM series part SFM-120-01-SM-D-A has a pitch of 1.27mm and 40 pins. Current availability: 336. For datasheets and drawings, please contact our technical team or use the form above.

  • Q: Hi, what are the differences between the SFM-120-01-SM-D-A connector and TFM-105-02-STL-D-A-P-TR in terms of Insulation Diameter, Connector Pitch, and Type?

    Hi, for SFM-120-01-SM-D-A and TFM-105-02-STL-D-A-P-TR, Connector Pitch and Type are the same (1.27mm, Header). The main differences are in Insulation Diameter: SFM-120-01-SM-D-A has Insulation Diameter is 1.78; while TFM-105-02-STL-D-A-P-TR has Insulation Diameter is 2.70. Choose based on termination process and material requirements. Contact online support for a deeper parameter comparison.
    Asked: 2026-09-30 05:30:50 Answered: 2026-09-30 05:30:50

  • Q: Hi, is the SFM-120-01-SM-D-A connector male or female, and which mating connector part numbers can be used with it?

    Hi, the SFM-120-01-SM-D-A connector is a Female connector. For mating use, this series pairs with TFM. Recommended mating TFM part numbers include: TFM-107-02-S-D-DP-A, TFM-108-03-L-D-DH-A-TR, TFM-105-01-L-D-A-K-TR, TFM-108-03-L-D-DH-A, TFM-107-02-S-D-A, TFM-105-05-S-D-A-K-TR, TFM-105-01-S-D-DH-A, TFM-105-01-S-D-DH-A-TR. You can search these part numbers on this site for full specs and availability.
    Asked: 2026-09-30 05:30:49 Answered: 2026-09-30 05:30:49
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