China 1.25mm Pitch Suppliers - China 1.25mm Pitch Factory

Compact Wire-to-Board Connector Solutions for Space-Constrained Applications

CSG supplies 1.25mm pitch connector solutions for compact PCB and internal wiring applications, including wire-to-board connectors, headers, housings, terminals and cable assemblies.

Alternative GHDR-14V-S-1
The Alternative GHDR-14V-S-1 is a 1.25mm-pitch, 14-circuit dual-row wire-to-board connector with a Positive Lock housing, crimp terminals and SMT headers. Its matched components support...
Alternative GHDR-10V-S-1
The Alternative GHDR-10V-S-1 is a 1.25mm-pitch dual-row wire-to-board connector system with Positive Lock housings, crimp terminals, and vertical or right-angle SMT headers for 10–40 circuit...
A1255(FI-S)alternative FI-S 1.25mm Housing Terminal Cbale Wafer
The A1255(FI-S) alternative is a 1.25 mm pitch FI-S replacement connector solution for OEM and distributor sourcing, offering housings, crimp terminals, and SMT wafers for compact wire-to-board...
A1259(GHD)alternative GHD 1.25 Buckle Housing Terminal Wafer Cable
A1259(GHD) alternative is a 1.25 mm connector system for OEM second-source and cable assembly programs, with separate component and finished-assembly supply options.
A1258(GH)alternative GH 1.25mm Housing Terminal Cable SMT Wafer
The A1258(GH) alternative is a 1.25 mm pitch GH-series replacement solution for OEM and distributor sourcing, combining matching housings, crimp terminals, and SMT wafers for compact wire-to-board...

1.25mm Pitch Connector Product Range

CSG provides a range of 1.25mm pitch interconnection components for PCB, wire, and cable applications.

Wire-to-Board Connectors

Connect discrete wires/cables to PCBs in compact assemblies.

PCB Headers & Wafer Connectors

Board-mounted components for compact PCB interconnection. Available in SMT/through-hole, vertical/right-angle, single/multi-row, various circuit counts, and contact/plating options.

Connector Housings

Provide interface for terminals and wire assemblies. Consider circuit count, terminal compatibility, wire size, polarization, locking structure, mating configuration, and housing material.

Terminals

Available for specific housing and wire configurations.

Cable Assemblies

Complete ready-to-use assemblies per required connector combination, wire specification, and cable length.

How to Choose the Right 1.25mm Pitch Connector

Define the Connector Type:Determine how it will be used: wire-to-board, wire-to-wire, board-to-board, SMT header, through-hole, or cable assembly. This determines the basic mating structure and PCB integration method.

Confirm the Number of Circuits:Circuit count affects overall dimensions, PCB footprint, cable configuration, and available options.

Check Electrical Requirements:Confirm rated current, rated voltage, contact resistance, and insulation resistance. Not all 1.25mm pitch connectors have the same electrical capability.

Check Mechanical Requirements:Consider vertical/right-angle orientation, SMT/through-hole mounting, height, mating direction, locking mechanism, polarization, PCB footprint, and terminal retention.

Check Environmental Requirements:Review operating/storage temperature, vibration/shock, reflow soldering conditions, material requirements, and applicable environmental regulations.

Confirm Mating Compatibility:For replacement or second-source projects, provide the original part number, drawing, or sample. Our team evaluates contact arrangement, dimensions, mating interface, PCB footprint, electrical specs, and wire/terminal configuration.

1.25mm Pitch Specification Comparison

Model	Compatible With	Rated Current	Rated Voltage	Temp. Range	Contact Resistance	Insulation Resistance	Feature
GHDR-14V-S-1	GHDR 1.25mm	1A	50V DC	-25~+105°C	≤70mΩ	≥100MΩ	14-pin board-to-wire
GHDR-10V-S-1	GHDR 1.25mm	1A	50V DC	-25~+105°C	≤70mΩ	≥100MΩ	10-pin board-to-wire
A1255(FI-S)	Hirose FI-S	1A	200V DC	-40~+105°C	≤40mΩ	≥100MΩ	High-voltage version
A1258(GH)	JST GH	1A	150V DC	-25~+105°C	≤30mΩ	≥500MΩ	Best signal integrity
A1259(GHD)	GHD 1.25mm	1A	50V DC	-25~+105°C	≤70mΩ	≥100MΩ	Lock buckle, anti-vibration

A1255(FI-S)alternative FI-S 1.25mm Housing Terminal Cbale Wafer

1.25mm Pitch Connector Alternatives & Cross-Reference

Our existing product range includes alternatives for selected series from JST (GH), Molex (PicoBlade), Hirose (DF13), and JAE (FI-S).

Typical Replacement Projects:
Second-source development, cost reduction, obsolete/difficult-to-source connector replacement, or local/alternative supply development.

What We Compare:
Pitch and circuit arrangement, connector dimensions, mating interface, PCB footprint, contact position, terminal structure, rated current/voltage, wire specification, locking mechanism, operating temperature, and material/plating requirements.

1.25mm Pitch Connector Solutions for Different Buyers

Buyer Type	Key Priorities	How We Support
OEM & ODM Manufacturers	Product consistency, cost control, long-term supply, customization, MOQ, lead time, production capacity	Support from product selection through sample evaluation, specification confirmation, and volume production
Cable Harness & Assembly Manufacturers	Housing/terminal compatibility, wire gauge, crimp specs, plating, cable length, assembly method, packaging, volume	Provide connector components and customized cable assembly solutions per project requirements
Industrial Electronics & Automation	Locking structure, contact reliability, temperature/vibration performance, consistent quality, long-term availability	Engineering team helps evaluate requirements for mechanical retention, environmental performance, and reliability
Consumer Electronics Manufacturers	Compact dimensions, PCB space, cost, SMT compatibility, automated assembly, consistency, volume supply, packaging	Evaluate 1.25mm solutions for compact internal PCB and wire-to-board applications
Replacement & Second-Source Buyers	Mechanical/electrical equivalence, mating compatibility, availability, price, MOQ, lead time, sample validation	Evaluate alternatives based on existing part number, drawing, or sample provided

Custom Connector Development Process

01/

Requirement Review:Provide drawings, specifications, samples or application requirements.

02/

Engineering Evaluation:Our team reviews the mechanical, electrical and production requirements.

03/

Prototype / Sample:Samples or prototypes are prepared for fit and functional evaluation.

04/

Customer Validation:The connector is evaluated in the target application.

05/

Specification Confirmation:Approved specifications are documented for production.

06/

Mass Production:The confirmed product is transferred into controlled volume production.

Engineering Support for 1.25mm Connector Selection

CSG provides technical support to help customers evaluate connector specifications and replacement requirements.

Existing Connector Identification:Identify potential connector series from a part number, drawing or physical sample.

Mechanical Compatibility:Review dimensions, mating interface, orientation, locking and PCB footprint.

Electrical Requirements:Compare rated current, voltage, contact resistance and insulation requirements.

Terminal & Wire Selection:Evaluate wire gauge, terminal configuration and housing compatibility.

Replacement Options:Identify potential alternatives for selected JST, Molex, Hirose, JAE and other connector designs.

Cable Assembly Requirements:Review connector combinations, wire specifications, cable lengths and pin configurations.

A1258(GH)alternative GH 1.25mm Housing Terminal Cable SMT Wafer

Quality Control

Our quality process can include:

Incoming Material Inspection

Molding / Stamping Process Control

Connector Assembly Inspection

Dimensional Inspection

Electrical Testing

Final Quality Inspection

Packaging & Shipment

Packaging and Shipping

Packaging

The packaging can be negotiated according to the requirements of automated assembly, storage and transportation. The packaging methods we support include:

• Bags
• Trays
• Reels
• Inner boxes
• Export cartons
• Customer-specific packaging

Shipping

The available modes of transportation include:

• Express
• Air freight
• Sea freight
• Other customer-approved logistics arrangements

Compliance & Documentation

Our products and production processes all comply with international standards. Depending on the specific requirements, we can offer the following materials:

RoHS
REACH
UL
ISO 9001
IATF 16949

FAQ

Q: What does 1.25mm pitch mean?

A: 1.25mm pitch refers to the 1.25mm center-to-center spacing between adjacent contacts. It describes the contact spacing but does not by itself define the connector's electrical rating, mechanical structure or mating compatibility.

Q: What types of 1.25mm pitch connectors do you supply?

A: Our product range includes applicable wire-to-board connectors, PCB headers or wafer connectors, housings, terminals and cable assembly solutions. Available configurations depend on the product series.

Q: Can I order samples before placing a bulk order?

A: Sample availability depends on the product model and project requirements. Contact us with the required part number and quantity so we can confirm sample options.

Q: What is the MOQ for 1.25mm pitch connectors?

A: MOQ depends on the product series, order quantity, customization requirements and whether cable assembly or tooling is involved. Contact us with your required model and quantity for an accurate MOQ.

Q: What is the lead time?

A: Lead time depends on product availability, order quantity, production schedule and customization requirements.Standard products can be provided within 3 to 5 working days. For complex customized projects, the delivery time will be postponed by 10 working days accordingly.

Q: What are the payment and shipping terms?

A: We accept wire transfer (T/T) and letter of credit (L/C). We ship via DHL, FedEx or sea freight, using standard international trade terms (EXW / FOB / CIF). The specific terms are subject to the purchase order (PO).

Q: What information should I include in an RFQ?

A: For a faster quotation, provide as much of the following information as possible:

Q: Product part number

A: Original manufacturer part number, if applicable
Technical drawing or datasheet
Required quantity
Wire specification
Application
Customization requirements
Target delivery date
Destination country

As one of the most professional 1.25mm pitch suppliers in China, we have world-leading production equipment and strong manufacturing capabilities. We warmly welcome you to buy bulk high quality 1.25mm pitch at competitive price from our factory.