China 1.20mm Pitch Suppliers - China 1.20mm Pitch Factory

Compact 1.20mm Pitch Connector Solutions for Space-Constrained PCB and Wiring Applications

CSG supplies 1.20mm pitch connector solutions for compact PCB and wire-to-board applications where connector size, mounting height, electrical performance and assembly efficiency are critical.

Alternative 78171-0005 Molex
Alternative 78171-0005 Molex is a 1.20 mm pitch SMT wire-to-board header with 5 circuits and 1.55 mm mated height for second-source procurement, replacement evaluation, and recurring production.
Alternative DF57H-4S-1.2C
Alternative DF57H-4S-1.2C is a 1.20 mm pitch, 4-circuit single-row connector housing with a friction-lock structure. It is designed for applications requiring a compact wire-to-board connection,...
Alternative DF57H-3S-1.2C
Alternative DF57H-3S-1.2C is a 1.20 mm pitch, 3-circuit single-row connector housing with a friction-lock structure. It is designed for compact wire-to-board connections, with a 2A AC/DC rated...
A1200(78172)alternative 78172 Housing Molex1.2 Terminal
A1200 (78172) is a 1.20 mm pitch wire-to-board connector alternative for Molex 78172 applications, combining LCP housing, gold-plated phosphor copper terminals, and PCB-side components for...
A1201(ACH)Made in China ACH 1.20 Housing Terminal Wafer
A1201 (ACH) is a 1.20 mm-pitch wire-to-board connector series for PCB-to-wire connections, offered as an alternative sourcing option with matching housings, crimp terminals and PCB wafers.
A1202(DF57)alternative DF57 Housing Terminal
A1202 (DF57) Alternative Housing Terminal is designed for DF57 replacement applications, with defined electrical ratings, housing material, terminal material, and plating specifications.

Cross-Reference Finder — match your current part

Your Current Brand Part	CSG Equivalent	Key Rating
Molex 78171-0005	Alternative 78171-0005	2A / 50V / -40~+105°C
Molex 78172	A1200(78172)	2A / 50V / -40~+105°C
Hirose DF57H-4S-1.2C	Alternative DF57H-4S-1.2C	2A / 50V / -40~+105°C
Hirose DF57H-3S-1.2C	Alternative DF57H-3S-1.2C	2A / 50V / -40~+105°C
Hirose DF57	A1202(DF57)	2A / 50V / -40~+105°C
China ACH 1.20	A1201(ACH)	1.5–2A / 50V / -40~+105°C

A1200(78172))alternative 78172 Housing Molex1.2 Terminal

Low-Profile & Space-Constrained Solutions

When PCB area and internal enclosure height are limited, connector dimensions can directly affect the overall product architecture. A 1.20mm pitch connector can help engineers optimize contact spacing while selected low-profile configurations can reduce the vertical space required by the interconnection.

Ideal for:
• Compact electronic devices
• Thin PCB assemblies
• Portable electronics
• Small sensors
• IoT devices
• Compact control modules
• Internal device wiring
• Space-limited industrial electronics

1.20mm Connectors for SMT & Automated PCB Assembly

For high-volume PCB manufacturing, connector selection must consider not only electrical and mechanical specifications but also how the component will be placed and soldered during production.

01/

SMT Compatibility:Our connectors are designed to meet the placement and soldering requirements of standard SMT assembly processes, minimizing the risk of misalignment or tombstoning during reflow.

02/

Pick-and-Place Capability:We support automated placement with components that are compatible with standard pick-and-place nozzles and feeder systems, ensuring smooth integration into your production line.

03/

Reflow Soldering:Materials and terminal designs are selected to withstand reflow soldering temperatures without deformation or degradation, helping maintain joint integrity and long-term reliability.

04/

Tape-and-Reel Packaging:Our connectors are supplied in tape-and-reel packaging configured for automated feeders, reducing setup time and improving placement consistency across large batches.

05/

PCB Footprint & Orientation:We verify the PCB layout and component orientation against your design to ensure correct polarity and solder pad alignment before production begins.

06/

Soldering Conditions:We provide recommended soldering profiles and process parameters to support your assembly team in achieving consistent, defect-free solder joints.

Custom 1.20mm Connector & Cable Assembly Solutions

Customization can be discussed for:

Circuit count, housing configuration, contact plating, wire gauge, cable length, pin configuration, connector orientation, terminal configuration, labeling, and packaging.

1.20mm Connector Engineering & Compatibility Support

We can help with:

Connector Identification:Provide a photograph, part number, or sample.

Dimensional Comparison:Compare pitch, width, height, mating dimensions, and PCB footprint.

Electrical Evaluation:Compare current, voltage, and contact resistance.

Assembly Evaluation:Review SMT, pick-and-place, reflow, and crimping compatibility.

A1202(DF57)alternative DF57 Housing Terminal

From Sample Evaluation to Mass Production

Requirement Review:Provide part number, drawing, sample, or key specs (circuits, current, voltage, wire, PCB, environment). Original part number is best for replacements.

Engineering Evaluation:We check pitch, dimensions, footprint, mating, locking, ratings, and SMT/crimping needs—focusing on height/clearance for compact designs.

Sample Supply:Samples provided to verify fit, orientation, PCB installation, retention, and basic electrical performance.

Application Validation:Test with actual assembly: mating, soldering, continuity, retention, and any required environmental checks.

Spec Confirmation:Finalize model, materials, plating, dimensions, packaging, and inspection requirements before production.

Pilot Run:Small batch to confirm consistency—recommended for new designs, custom cables, or second-source validation.

Mass Production:Scale to volume per order, schedule, packaging, and recurring supply needs.

Final QC & Shipment:Inspect, package (bags/trays/reels/cartons), and ship per agreed terms.

FAQ

Q: What are the advantages of using a 1.20mm pitch connector?

A: The main advantage is compact interconnection. A 1.20mm pitch connector can help engineers reduce the space occupied by the contact interface and is suitable for products where PCB space or internal dimensions are limited.

Q: What is the difference between 1.20mm and 1.25mm pitch connectors?

A: The pitch is different: 1.20mm connectors have 1.20mm contact spacing, while 1.25mm connectors have 1.25mm spacing.However, a 1.20mm connector cannot be considered interchangeable with a 1.25mm connector simply because the difference is small. The mating interface, housing dimensions, terminal position, PCB footprint and electrical specifications must all be evaluated.

Q: What current and voltage ratings are available?

A: Current and voltage ratings vary by connector series and configuration. They should not be assumed based on the 1.20mm pitch alone.When selecting a connector, compare the required operating current and voltage with the specific product's rated values and applicable test conditions.

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

A: Sample availability depends on the specific product, stock status and project requirements.For new product development, replacement projects or second-source qualification, we recommend evaluating samples before approving the connector for mass production.Send us the required part number and sample quantity, and our sales team can confirm availability and lead time.

Q: What is the MOQ for 1.20mm pitch connectors?

A: MOQ varies depending on the product series, order quantity, customization requirements and whether the order includes cable assembly or special tooling.

Q: What is the lead time for 1.20mm pitch connectors?

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 large customized projects, the delivery time will be delayed by approximately 10 working days. The specific duration will be determined based on a comprehensive assessment of the customization requirements.

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 provide when requesting a quotation?

A: For the fastest and most accurate quotation, provide as much of the following information as possible:
Product or part number
Original manufacturer and part number, if applicable
Technical drawing or datasheet
Required quantity
Circuit count
Wire specification
Application
Customization requirements
Target delivery date
Shipping destination

As one of the most professional 1.20mm pitch suppliers in China, we have world-leading production equipment and strong manufacturing capabilities. We warmly welcome you to buy bulk high quality 1.20mm pitch at competitive price from our factory.