The CONNFLY DS1023-2x20S21 is a female header from the DS1023 series, designed for through-hole mounting on printed circuit boards.

This connector has 40 contacts, arranged in 2 rows of 20, with standard 2.54mm pitch. Its straight / vertical orientation allows direct connection with compatible male pin headers, electronic modules, development boards, interfaces and board-to-board systems.

With 8.5mm body height and 3.2mm lead length, it is suitable for electronic applications requiring a compact, simple and easy-to-solder female connector.

The DS1023 series lists electrical characteristics such as 3A maximum current, 20 milliohm maximum contact resistance, 1000 megaohm minimum insulation resistance, 500V AC rms for 1 minute dielectric withstand voltage and -40°C to 105°C operating temperature.

It is useful for assembly, repair or replacement of compatible female connectors on electronic boards, especially where a 2x20 female header with 2.54mm pitch is required.

Main features

Female header / socket
Manufacturer / brand: CONNFLY
Manufacturer reference: DS1023-2*20S21
Series: DS1023
Connector type: pin strips / female header
Kind of connector: female / socket
Total number of contacts: 40
Contact layout: 2x20
Pitch: 2.54mm
Electrical mounting: THT
Orientation: straight / vertical
Height: 8.5mm
Lead length: 3.2mm
Maximum current: 3A
Contact plating: gold-plated
Series contact resistance: 20 milliohm maximum
Series insulation resistance: 1000 megaohm minimum
Series dielectric withstand voltage: 500V AC rms for 1 minute
Series operating temperature: -40°C to 105°C
Main application: board-to-board connection and PCB assembly
Suitable for electronics, prototyping and compatible PCB repair

Recommended applications

Board-to-board connections
Printed circuit boards with THT mounting
Development boards
Electronic modules
Signal interfaces
Prototyping projects
Control equipment
Embedded systems
Electronic board repair
Replacement of compatible 2x20 female headers
Assemblies requiring a straight 40-contact female connector

Important note

Before purchase, always confirm the complete reference, number of contacts, 2x20 layout, 2.54mm pitch, body height, lead length, straight orientation, PCB footprint and compatibility with the original board.

This item corresponds to the CONNFLY DS1023-2*20S21 / DS1023-2x20S21 connector. It should not be confused with male, single-row, right-angle, SMT or different contact-count versions.

For replacement in existing equipment, always check mechanical dimensions, row spacing, contact position and mounting orientation before soldering. This item corresponds only to the female header. PCB, cables, jumpers, male headers, spacers and other accessories are not included unless expressly stated otherwise.