TOLC-105-12-L-Q

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WTOLC 20-Position 1.27mm Board-to-Board Connectors: Replacement for SAMTEC TOLC-105-12-L-Q

Board-to-Board Connectors
TOLC-105-12-L-Q
Mfr. Part No. : WTOLC-4X05H12LQ
Standalone or 100% Samtec-Compatible. Identical Specs. Plug & Play.
Compatible model for TOLC-105-12-L-Q is WTOLC-4X05H12LQ. FOURRAY™ TOLC series 1.27mm pitch 4-row connector, 20 pins total. Connector Type: Header, Elevated, Contact Type: Male Pin, Pitch - Mating: 0.050" (1.27mm), Number of Positions: 20, 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: -, 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: 20
Connector Pitch: 1.27mm
Rows: 4
$11.76 $8.37
In Stock (4817)

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-105-12-L-Q Specification Comparison

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

Part Number TOLC-105-12-L-Q TOLC-105-12-S-Q-A TOLC-105-12-L-Q-LC TOLC-105-12-S-Q
Connector Type Header Terminal Terminal Header
Connector Series WTOLC WTOLC WTOLC WTOLC
Connector Pitch 1.27mm 1.27mm 1.27mm 1.27mm
Rows 4 4 4 4
Number of Pins 20 20 20 20
Terminal Interface Surface Mount (SMD) Surface Mount (SMD) Surface Mount (SMD) Surface Mount (SMD)
Orientation Vertical Vertical Vertical Vertical
Material / Metal Phosphor Bronze Brass Copper Iron Alloy Phosphor Bronze
Color Red + Au-plated (10μin) Red + Au-plated (10μin) Blue + Au-plated (3μin) Orange + Ni-plated then Sn-plated
Rated Voltage (VAC/VDC) 300 600 200 350
Rated Current per Contact (Max.) (A) 1~2A 30~50A 0.5~1A 2~3A
Plating Gold Plating (Au) Selective Gold/Tin Plating (Au/Sn) Other Gold Plating (Au)
Plating Thickness 80in(2.03μm) 30μin(0.76μm) 15μin(0.381μm) 100μin(2.54μm)
Packaging Rigid Tray with Cover Tray with Cover Reel with Cover Multi-Layer Reel
Insulation Diameter (mm) 1.40 2.00 0.60 0.80~1.40
Wire Gauge (AWG) 18~26 16~22 26~32 22
Operating Temperature -55℃~125℃ -55℃~125℃ -55℃~125℃ -55℃~125℃
Number of Circuits 20 66 116 20
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 20
Terminal Interface Surface Mount (SMD)
Orientation Vertical
Material / Metal Phosphor Bronze
Color Red + Au-plated (10μin)
Rated Voltage (VAC/VDC) 300
Rated Current per Contact (Max.) (A) 1~2A
Plating Gold Plating (Au)
Plating Thickness 80in(2.03μm)
Packaging Rigid Tray with Cover
Insulation Diameter (mm) 1.40
Wire Gauge (AWG) 18~26
Operating Temperature -55℃~125℃
Number of Circuits 20
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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-105-12-L-Q has a pitch of 1.27mm and 20 pins. Current availability: 4817. For datasheets and drawings, please contact our technical team or use the form above.
  • Q: Hi, what are the differences between the TOLC-105-12-L-Q connector and SOLC-140-02-F-Q-A in terms of Orientation, Contact Material, and Packaging?

    Hi, for TOLC-105-12-L-Q and SOLC-140-02-F-Q-A, Orientation and Contact Material are the same (Vertical, Phosphor Bronze). The main differences are in Packaging: TOLC-105-12-L-Q has Packaging is Rigid Tray with Cover; while SOLC-140-02-F-Q-A has Packaging is Reel with Cover. Choose based on termination process and material requirements. Contact online support for a deeper parameter comparison.
    Asked: 2026-09-28 05:30:53 Answered: 2026-09-28 05:30:53
  • Q: Hi, is the TOLC-105-12-L-Q connector male or female, and which mating connector part numbers can be used with it?

    Hi, the TOLC-105-12-L-Q connector is a Male connector. For mating use, this series pairs with SOLC. Recommended mating SOLC part numbers include: SOLC-105-12-L-Q-K-TR, SOLC-110-22-S-Q-LC, SOLC-115-02-S-Q-A, SOLC-120-12-S-Q-A, SOLC-105-02-S-Q-K-TR, SOLC-120-02-F-Q-LC, SOLC-115-02-L-Q-LC, SOLC-120-12-S-Q. You can search these part numbers on this site for full specs and availability.
    Asked: 2026-09-28 05:30:52 Answered: 2026-09-28 05:30:52
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