Name: TOLC-105-02-S-Q-K
Brand: WORLDPO
SKU: TOLC-105-02-S-Q-K
Price: 8.88 USD
Availability: InStock

Board-to-Board Connectors

TOLC-105-02-S-Q-K

Mfr. Part No. : WTOLC-4X05H02SQK

Standalone or 100% Samtec-Compatible. Identical Specs. Plug & Play.

Compatible model for TOLC-105-02-S-Q-K is WTOLC-4X05H02SQK. FOURRAY™ TOLC series 1.27mm pitch 4-row connector, 20 pins total. Connector Type: Header, 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: 0.220" (5.60mm), Contact Shape: Square, Contact Finish - Mating: Gold, Contact Finish Thickness - Mating: 30.0µin (0.76µm), Contact Finish - Post: Gold, Contact Material: Phosphor Bronze, Insulation Material: Liquid Crystal Polymer (LCP), Features: 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: -

🏷 20 pin connector

Connector Series: WTOLC

Number of Pins: 20

Connector Pitch: 1.27mm

Rows: 4

$12.39 $8.88

In Stock (7534)

Typical lead time: contact for quote Packaging: Bag

Datasheet Request a Quote

Documentation View all

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

TOLC-105-02-S-Q-K Datasheet Download PDF

TOLC-105-02-S-Q-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-105-02-S-Q-K	TOLC-105-02-F-Q-LC	TOLC-105-02-S-Q-A	TOLC-105-02-S-Q-LC
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	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	Copper Iron Alloy	High Copper Alloy (for pins/contacts)	Copper Iron Alloy
Color	Fluorescent Yellow	Red	Black	Brown
Rated Voltage (VAC/VDC)	125	250	20	500
Rated Current per Contact (Max.) (A)	2～3A	5～10A	2～3A	0.2～0.5A
Plating	Gold Plating (Au)	Tin Plating (Sn)	Gold Plating (Au)	Silver Plating
Plating Thickness	2μin（0.051μm）	3μin（0.076μm）	30μin（0.76μm）	30μin（0.76μm）
Packaging	Bag	Tray with Cover	Reel	Bag
Insulation Diameter (mm)	3.90	2.83	2.54	5.08
Wire Gauge (AWG)	18	FFC (Flexible Flat Cable)	20	16～22
Operating Temperature	-55℃～125℃	-55℃～125℃	-55℃～125℃	-55℃～125℃
Number of Circuits	20	45	250	5

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	Fluorescent Yellow
Rated Voltage (VAC/VDC)	125
Rated Current per Contact (Max.) (A)	2～3A
Plating	Gold Plating (Au)
Plating Thickness	2μin（0.051μm）
Packaging	Bag
Insulation Diameter (mm)	3.90
Wire Gauge (AWG)	18
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-105-02-S-Q-K has a pitch of 1.27mm and 20 pins. Current availability: 7534. For datasheets and drawings, please contact our technical team or use the form above.
Q: Hi, what are the differences between the TOLC-105-02-S-Q-K connector and SOLC-115-02-L-Q-A in terms of Type, Termination, and Circuits?

Hi, for TOLC-105-02-S-Q-K and SOLC-115-02-L-Q-A, Termination is the same (Surface Mount (SMD)). The main differences are in Type and Circuits: TOLC-105-02-S-Q-K has Type is Header, Circuits is 20; while SOLC-115-02-L-Q-A has Type is Terminal, Circuits is 42. 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-105-02-S-Q-K connector male or female, and which mating connector part numbers can be used with it?

Hi, the TOLC-105-02-S-Q-K connector is a Male connector. For mating use, this series pairs with SOLC. Recommended mating SOLC part numbers include: SOLC-105-02-L-Q, SOLC-105-22-S-Q-A, SOLC-105-02-L-Q-A, SOLC-110-22-L-Q-A, SOLC-110-02-S-Q-A, SOLC-115-22-F-Q-K-TR, SOLC-105-02-L-Q-K-TR, SOLC-105-12-F-Q-A. 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