TOLC-120-12-L-Q-A-K

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WTOLC 80-Position 1.27mm Board-to-Board Connectors: Replacement for SAMTEC TOLC-120-12-L-Q-A-K

Board-to-Board Connectors
TOLC-120-12-L-Q-A-K
Mfr. Part No. : WTOLC-4X20H12LQAK
Standalone or 100% Samtec-Compatible. Identical Specs. Plug & Play.
Compatible model for TOLC-120-12-L-Q-A-K is WTOLC-4X20H12LQAK. FOURRAY™ TOLC series 1.27mm pitch 4-row connector, 80 pins total. Connector Type: Header, Elevated, Contact Type: Male Pin, Pitch - Mating: 0.050" (1.27mm), Number of Positions: 80, Number of Rows: 4, Row Spacing - Mating: 0.050" (1.27mm), Number of Positions Loaded: All, Style: Board to Board, Shrouding: Shrouded - 4 Wall, Mounting Type: Surface Mount, Termination: Solder, Fastening Type: Push-Pull, Contact Length - Mating: 0.100" (2.54mm), Contact Length - Post: -, Overall Contact Length: -, Insulation Height: 0.285" (7.25mm), Contact Shape: Square, Contact Finish - Mating: Gold, Contact Finish Thickness - Mating: 10.0µin (0.25µm), Contact Finish - Post: Gold, Contact Material: Phosphor Bronze, Insulation Material: Liquid Crystal Polymer (LCP), Features: Board Guide, Pick and Place, Operating Temperature: -55°C ~ 125°C, Ingress Protection: -, Material Flammability Rating: UL94 V-0, Insulation Color: Black, Current Rating (Amps): 2.4A per Contact, Voltage Rating: -
Connector Series: WTOLC
Number of Pins: 80
Connector Pitch: 1.27mm
Rows: 4
$14.58 $10.35
In Stock (9910)

Typical lead time: contact for quote Packaging: Rigid Tray with Cover

Documentation View all

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

TOLC-120-12-L-Q-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 TOLC-120-12-L-Q-A-K TOLC-120-12-S-Q-A TOLC-120-12-F-Q-LC TOLC-120-12-L-Q-A
Connector Type Header Terminal Terminal Terminal
Connector Series WTOLC WTOLC WTOLC WTOLC
Connector Pitch 1.27mm 1.27mm 1.27mm 1.27mm
Rows 4 4 4 4
Number of Pins 80 80 80 80
Terminal Interface Surface Mount (SMD) Surface Mount (SMD) Surface Mount (SMD) Surface Mount (SMD)
Orientation Vertical Vertical Vertical Vertical
Material / Metal Phosphor Bronze Phosphor Bronze High Copper Alloy High Copper Alloy
Color White Red + Au-plated (5μin) Blue + Au-plated (5μin) Ivory
Rated Voltage (VAC/VDC) 300 24 20 150
Rated Current per Contact (Max.) (A) 5~10A 0.2~0.5A 10~30A 3~5A
Plating Gold Plating (Au) Nickel Plating Selective Gold/Tin Plating (Au/Sn) Nickel Plating
Plating Thickness 10μin(0.254μm) 30μin(0.76μm) 3μin(0.076μm) 1μin(0.025μm)
Packaging Rigid Tray with Cover Tape and Reel Tape and Reel Tape and Reel
Insulation Diameter (mm) 0.98 3.30 1.28 4.31
Wire Gauge (AWG) 24~26 18~26 24~26 12~16
Operating Temperature -55℃~125℃ -55℃~125℃ -55℃~125℃ -55℃~125℃
Number of Circuits 80 46 400 88
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 WTOLC
Connector Pitch 1.27mm
Rows 4
Number of Pins 80
Terminal Interface Surface Mount (SMD)
Orientation Vertical
Material / Metal Phosphor Bronze
Color White
Rated Voltage (VAC/VDC) 300
Rated Current per Contact (Max.) (A) 5~10A
Plating Gold Plating (Au)
Plating Thickness 10μin(0.254μm)
Packaging Rigid Tray with Cover
Insulation Diameter (mm) 0.98
Wire Gauge (AWG) 24~26
Operating Temperature -55℃~125℃
Number of Circuits 80
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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 WTOLC series part TOLC-120-12-L-Q-A-K has a pitch of 1.27mm and 80 pins. Current availability: 9910. For datasheets and drawings, please contact our technical team or use the form above.
  • Q: Hi, what are the differences between the TOLC-120-12-L-Q-A-K connector and SOLC-120-02-F-Q-LC in terms of Color / Resin, Orientation, and Connector Pitch?

    Hi, for TOLC-120-12-L-Q-A-K and SOLC-120-02-F-Q-LC, Orientation and Connector Pitch are the same (Vertical, 1.27mm). The main differences are in Color / Resin: TOLC-120-12-L-Q-A-K has Color / Resin is White; while SOLC-120-02-F-Q-LC has Color / Resin is Natural. Choose based on termination process and material requirements. Contact online support for a deeper parameter comparison.
    Asked: 2026-09-27 05:30:52 Answered: 2026-09-27 05:30:52
  • Q: Hi, is the TOLC-120-12-L-Q-A-K connector male or female, and which mating connector part numbers can be used with it?

    Hi, the TOLC-120-12-L-Q-A-K connector is a Male connector. For mating use, this series pairs with SOLC. Recommended mating SOLC part numbers include: SOLC-110-22-S-Q-LC, SOLC-120-12-L-Q-A, SOLC-110-12-S-Q-K-TR, SOLC-110-12-F-Q-A, SOLC-110-02-S-Q-K-TR, SOLC-120-32-L-Q-A, SOLC-105-12-L-Q-K-TR, SOLC-110-22-F-Q-K-TR. You can search these part numbers on this site for full specs and availability.
    Asked: 2026-09-27 05:30:50 Answered: 2026-09-27 05:30:50
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