SFM-120-01-L-D-A-K

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

Board-to-Board Connectors
SFM-120-01-L-D-A-K
Mfr. Part No. : WSFM-220H01LDAK
Standalone or 100% Samtec-Compatible. Identical Specs. Plug & Play.
Compatible model for SFM-120-01-L-D-A-K is WSFM-220H01LDAK. 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: 10.0µin (0.25µm), 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, Pick and Place, Current Rating (Amps): 3.2A per Contact, Voltage Rating: 250VAC
Connector Series: WSFM
Number of Pins: 40
Connector Pitch: 1.27mm
Rows: 2
$8.14 $3.65
In Stock (5741)

Typical lead time: contact for quote Packaging: Tube

Documentation View all

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

SFM-120-01-L-D-A-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-L-D-A-K SFM-120-01-F-D-K-TR SFM-120-01-S-D SFM-120-01-L-D-A
Connector Type Header Header Header Terminal
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) Surface Mount (SMD)
Orientation Vertical Vertical Vertical Vertical
Material / Metal Other Other Other High Copper Alloy (for pins/contacts)
Color Black + Au-plated (15μin) Yellow + Au-plated (15μin) Green + Au-plated (15μin) Black
Rated Voltage (VAC/VDC) 1400 24 200 20
Rated Current per Contact (Max.) (A) 0.5~1A 0.2~0.5A 5~10A Other
Plating Gold Plating (Au) Gold Plating (Au) Gold Plating (Au) Gold Plating (Au)
Plating Thickness 5μin(0.127μm) 4μin(0.102μm) 15μin(0.381μm) 10μin(0.254μm)
Packaging Tube Reel Multi-Layer Reel Reel
Insulation Diameter (mm) 3.05 1.57 1.00 0.97
Wire Gauge (AWG) 12 28~32 20 18
Operating Temperature -55℃~125℃ -55℃~125℃ -55℃~125℃ -55℃~125℃
Number of Circuits 40 40 40 Other
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 + Au-plated (15μin)
Rated Voltage (VAC/VDC) 1400
Rated Current per Contact (Max.) (A) 0.5~1A
Plating Gold Plating (Au)
Plating Thickness 5μin(0.127μm)
Packaging Tube
Insulation Diameter (mm) 3.05
Wire Gauge (AWG) 12
Operating Temperature -55℃~125℃
Number of Circuits 40
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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-L-D-A-K has a pitch of 1.27mm and 40 pins. Current availability: 5741. 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-L-D-A-K connector and SFM-125-L2-S-D-A in terms of Color / Resin, Current (Max), and Plating Thickness?

    Hi, SFM-120-01-L-D-A-K and SFM-125-L2-S-D-A differ in all three parameters — Color / Resin, Current (Max), and Plating Thickness. Specifically, SFM-120-01-L-D-A-K has Color / Resin is Black + Au-plated (15μin), Current (Max) is 0.5~1A, Plating Thickness is 5μin(0.127μm); while SFM-125-L2-S-D-A has Color / Resin is Green, Current (Max) is 5~10A, Plating Thickness is 80in(2.03μm). When selecting, compare orientation, termination process, and material needs for your application. For a full side-by-side specification comparison, please contact our online support.
    Asked: 2026-09-29 05:30:58 Answered: 2026-09-29 05:30:58
  • Q: Hi, is the SFM-120-01-L-D-A-K connector male or female, and which mating connector part numbers can be used with it?

    Hi, the SFM-120-01-L-D-A-K connector is a Female connector. For mating use, this series pairs with TFM. Recommended mating TFM part numbers include: TFM-108-03-L-D-DH-A, TFM-105-02-L-D-A-K-TR, TFM-107-05-L-D-DP-A, TFM-105-01-L-D-DH-A, TFM-105-03-L-D-A, TFM-105-04-S-D-DP-A, TFM-107-03-S-D-A, TFM-108-03-L-D-A-K-TR. You can search these part numbers on this site for full specs and availability.
    Asked: 2026-09-29 05:30:57 Answered: 2026-09-29 05:30:57
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