What are the key specifications?

It supports 1A current and 50V AC/DC voltage, operates between -40°C and +105°C, and features tin-plated brass contacts in a Nylon 9T insulator.

What should engineers review before using this connector?

Engineers should verify the PCB layout dimensions, ensure the mating housing (A1257 series) is selected correctly, and confirm the SMT reflow profile is compatible with the Nylon 9T material.

What are the sourcing risks for this component?

As a standard connector series, supply is generally stable, but users should confirm stock availability for high-volume production runs.

What is the pinout of A1257WV-S-6P-LCP?

Use the A1257WV-S-6P-LCP datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about A1257WV-S-6P-LCP pinout to locate pins, power rails, and interface signals before layout.

A1257WV-S-6P-LCP Datasheet, Specs, Alternatives & ECAD | CJT

AI summary

The CJT A1257WV-S-6P-LCP is a 6-position, 1.25mm pitch vertical SMT header connector designed for compact wire-to-board applications.

Best for

Compact PCB designs
Wire-to-board signal connections

Avoid if

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

Check before use

PCB footprint compatibility
Mating housing series

Key specifications

Pitch: 1.25 mm
Positions: 6
Current Rating: 1 A
Mounting: SMT

Compliance & Environment

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

Application

Consumer ElectronicsIndustrial Control

Datasheet

6cc102717085a73f5edb7c111f66eac6_2304140030_CJT-Changjiang-Connectors-A1257WV-S-6P-LCP_C225122.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for A1257WV-S-6P-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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Where to Buy

Real-time and catalog pricing from verified distributors

Alternative components

Part	Details	Match
SM06B-GHS-TB(LF)(SN)Manufacturer	URL can't contain control characters. '/component/docs/1f59bca57cb2a41cb2e08f4cecc896ea_2304140030_JST-SM06B-GHS-TB-LF-SN_C133065.pdf, https://s3.lax.sharktech.net/viassion/datasheets/hqonline/0623eda7b8ca441a81601b0c0458220c.pdf, https://datasheet.octopart.com/SM06B-GHS-TB-%28LF%29%28SN%29-JST-datasheet-10511.pdf, https://datasheet.octopart.com/SM06B-GHS-TB%28LF%29%28SN%29-JST-datasheet-10511.pdf, https://datasheet.octopart.com/SM06B-GHS-TB%28LF%29%28SN%29-JST-datasheet-12527556.pdf, https://datasheet.octo	Has caveats

WAFER-MX1.25-6PWBManufacturer	404 NOT_FOUND. {'error': {'code': 404, 'message': 'Publisher model `projects/still-protocol-478404-g8/locations/us-central1/publishers/google/models/gemini-3.1-pro-preview` was not found or your project does not have access to it. Ensure you are using a valid model name and that the model is available in the specified region. For more information, see: https://docs.cloud.google.com/gemini-enterprise-agent-platform/resources/locations.', 'status': 'NOT_FOUND'}}	Has caveats
WAFER-GH1.25-6PLBManufacturer	404 NOT_FOUND. {'error': {'code': 404, 'message': 'Publisher model `projects/still-protocol-478404-g8/locations/us-central1/publishers/google/models/gemini-3.1-pro-preview` was not found or your project does not have access to it. Ensure you are using a valid model name and that the model is available in the specified region. For more information, see: https://docs.cloud.google.com/gemini-enterprise-agent-platform/resources/locations.', 'status': 'NOT_FOUND'}}	Has caveats

Design and risk insights

Questions & answers

It is a 1.25mm pitch, 6-pin vertical (180°) surface-mount wafer header connector from CJT, commonly used in high-density electronic assemblies.

AI summary

Best for

Avoid if

Check before use

Key specifications

Compliance & Environment

Application

Datasheet

CAD Models

Where to Buy

Alternative components

Design and risk insights

Questions & answers

What is the A1257WV-S-6P-LCP?+×

What are the key specifications?+×

What should engineers review before using this connector?+×

What are the sourcing risks for this component?+×

What is the pinout of A1257WV-S-6P-LCP?+×