What are the key electrical ratings?

The connector is rated for 1A current and 50V AC/DC voltage.

What materials are used in this connector?

It features a Nylon 9T insulator (UL94V-0) and brass pins with tin-over-nickel plating.

What is the operating temperature range?

The connector is rated for operation between -40°C and +105°C.

What should sourcing teams check before buying A1257WV-S-4P-LCP?

Check lifecycle (Active), compliance data, distributor availability, and approved-source coverage. Current sourcing signal: Low; readiness: high_availability.

What is the pinout of A1257WV-S-4P-LCP?

Use the A1257WV-S-4P-LCP datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about A1257WV-S-4P-LCP pinout to locate pins, power rails, and interface signals before layout.

A1257WV-S-4P-LCP Datasheet, Specs, Alternatives & ECAD | CJT

AI summary

The CJT A1257WV-S-4P-LCP is a 4-pin, 1.25mm pitch vertical SMT header designed for compact wire-to-board connections.

Best for

Compact PCB designs
Wire-to-board signal transmission

Avoid if

High-power applications exceeding 1A
Environments requiring extreme vibration resistance

Check before use

PCB footprint dimensions
Mating housing compatibility

Key specifications

Pitch: 1.25 mm
Positions: 4
Mounting: SMT
Current Rating: 1 A

Compliance & Environment

RoHS: Compliant
REACH: Compliant
MSL: -
ECCN: -
HTSUS: -

Application

Consumer ElectronicsIndustrial Control

Datasheet

fdf076c948de493920f28d93d9cc91ba_2304140030_CJT-Changjiang-Connectors-A1257WV-S-4P-LCP_C225120.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for A1257WV-S-4P-LCP: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol

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PCB Footprint

Land pattern for PCB layout

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3D Model

STEP file for mechanical design

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KiCad Library

Verified KiCad 8 symbol, footprint, and 3D model

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Alternative components

Part	Details	Match
ZX-MX1.25-4PLTManufacturer	ZX-MX1.25-4PLT is the closest listed 4P 1.25mm vertical SMT alternative.	Needs validation

Design and risk insights

Questions & answers

It is a 1.25mm pitch, 4-position vertical (180°) SMT wafer header connector manufactured by CJT.

ZX-MX1.25-4PWTManufacturer	ZX-MX1.25-4PWT may work only where a right-angle SMT header is acceptable.	Needs validation
WAFER-MX1.25-4PWBManufacturer	WAFER-MX1.25-4PWB is a cross-vendor right-angle SMT functional alternate.	Needs validation
ZX-MX1.25-4PZZManufacturer	ZX-MX1.25-4PZZ is an electrical-class alternate, not an SMT form-fit substitute.	Needs validation

AI summary

Best for

Avoid if

Check before use

Key specifications

Compliance & Environment

Application

Datasheet

CAD Models

Alternative components

Design and risk insights

Questions & answers

What is the A1257WV-S-4P-LCP?+×

What are the key electrical ratings?+×

What materials are used in this connector?+×

What is the operating temperature range?+×

What should sourcing teams check before buying A1257WV-S-4P-LCP?+×

What is the pinout of A1257WV-S-4P-LCP?+×