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SFM-120-01-S-D-K

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

SFM-120-01-S-D-K
Board-to-Board Connectors
SFM-120-01-S-D-K
Mfr. Part No. : WSFM-220H01SDK
Standalone or 100% Samtec-Compatible. Identical Specs. Plug & Play.
Compatible model for SFM-120-01-S-D-K is WSFM-220H01SDK. 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: Pick and Place, 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
$7.93 $4.54
In Stock (4176)

Typical lead time: contact for quote Packaging: Tape and Reel

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-S-D-K Datasheet Download PDF
SFM-120-01-S-D-K 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-S-D-K SFM-120-01-S-D-P SFM-120-01-SM-D 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 Green + Ni-plated then Sn-plated Blue + Au-plated (5μin) Light Blue Green + Au-plated (15μin)
Rated Voltage (VAC/VDC) 300 1400 50 200
Rated Current per Contact (Max.) (A) 1～2A 5～10A 1～2A 5～10A
Plating Gold Plating (Au) Gold Plating (Au) Gold Plating (Au) Gold Plating (Au)
Plating Thickness 20μin（0.508μm） 30μin（0.76μm） 3μin（0.076μm） 15μin（0.381μm）
Packaging Tape and Reel Rigid Tray with Cover Multi-Layer Reel Multi-Layer Reel
Insulation Diameter (mm) 1.80 1.02 2.90 1.00
Wire Gauge (AWG) 24～30 10～12 28 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 Green + Ni-plated then Sn-plated
Rated Voltage (VAC/VDC) 300
Rated Current per Contact (Max.) (A) 1～2A
Plating Gold Plating (Au)
Plating Thickness 20μin（0.508μm）
Packaging Tape and Reel
Insulation Diameter (mm) 1.80
Wire Gauge (AWG) 24～30
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-S-D-K has a pitch of 1.27mm and 40 pins. Current availability: 4176. 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-S-D-K connector and TFM-120-01-S-D-RA in terms of Type, Contact Material, and Plating Thickness?

    Hi, for SFM-120-01-S-D-K and TFM-120-01-S-D-RA, Contact Material is the same (Other). The main differences are in Type and Plating Thickness: SFM-120-01-S-D-K has Type is Header, Plating Thickness is 20μin（0.508μm）; while TFM-120-01-S-D-RA has Type is Terminal, Plating Thickness is 30μin（0.76μm）. 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-S-D-K connector male or female, and which mating connector part numbers can be used with it?

    Hi, the SFM-120-01-S-D-K connector is a Female connector. For mating use, this series pairs with TFM. Recommended mating TFM part numbers include: TFM-107-05-L-D-DP-A, TFM-105-01-S-D-DH-A, TFM-105-01-S-D-DP-A, TFM-105-03-L-D-A, TFM-105-03-S-D-DP-A, TFM-107-03-L-D-A-K-TR, TFM-108-02-L-D-LC, TFM-108-02-S-D-A-K-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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