2.5mm SMT Wire-to-Board Connector Overview
The 2.5mm SMT Wire-to-Board Connector series is a high-performance interconnect solution designed to meet the rigorous demands of modern, compact PCB layouts. Utilizing advanced Surface Mount Technology (SMT), these wafers offer exceptional mechanical stability and co-planarity, fully optimizing them for automated pick-and-place high-speed assembly lines.
Consisting of high-precision SMT wafers, secure plug housings, and high-conductivity crimp terminals, this series guarantees a secure mating lock and reliable signal transmission even in high-vibration environments.
Key Features of Our 2.5mm SMT Wire-to-Board Connector
Our connectors feature several important advantages for electronic assembly:
Optimized for SMT Assembly: Available in both vertical and right-angle SMT configurations, featuring robust solder tabs (retaining clips) to ensure superior PCB retention force and prevent peeling during mating cycles.
High-Precision Engineering: Manufactured with tight tolerances to prevent solder wicking and ensure perfect coplanarity of contacts.
Secure Mating Mechanism: The housing features a friction lock mechanism that provides a tactile click when fully mated, preventing accidental disconnection.
Premium Material Composition: Built with high-temperature resistant, flame-retardant plastics (such as LCP or Nylon 9T) capable of withstanding lead-free reflow soldering processes.
Technical Specifications
To help you select the exact configuration for your project, please refer to the standard specifications below:
| Parameter | Specifications |
| Product Series | XH Series (Wire-to-Board) |
| Pitch | 2.50 mm |
| Mounting Type | Surface Mount Technology (SMT) / SMD |
| Orientation | Straight (Vertical) / Right-Angle (Horizontal) |
| Circuits / No. of Pins | 2P, 3P, 4P, 5P, 6P (Customizable options available) |
| Current Rating | 3A AC/DC (AWG #22) |
| Voltage Rating | 250V AC/DC |
| Contact Resistance | ≤20ｍΩ(Initial) |
| Insulation Resistance | ≥ 1000ｍΩ |
| Withstanding Voltage | 1000V AC/minute |
| Operating Temperature | -25℃ to +85℃(Including temperature rise) |
| Material – Wafer Pin | Brass, Tin-plated / Gold-plated |
| Material – Housing | High-Temp Plastic (UL94V-0 Rated) |
Applications and Industries
These connectors serve multiple industry applications effectively:
- Automotive Electronics: Engine control units and dashboard systems.
- Telecommunications: Network routers and switching equipment.
- Consumer Electronics: Home appliances and computing devices.
- Industrial Automation: PLC control panels and robotic systems.
- Medical Devices: Diagnostic and monitoring equipment.
Quality and Reliability
We ensure connector quality through several measures:
- Two Decades of Experience: Over 20 years in connector manufacturing.
- Comprehensive Testing: Every connector undergoes quality verification.
- Global Certifications: UL, RoHS, and CE compliance standards.
- Technical Support: Engineering assistance for integration needs.
- Customization Options: OEM solutions for specific requirements.
Get Technical Documentation
For detailed technical drawings and product specifications, contact our technical team. We provide complete documentation support for your PCB design requirements.
Choose Longyd for reliable 2.5mm SMT wire-to-board connectors. Our products deliver consistent performance for automated PCB assembly applications.
Frequently Asked Questions
1. What series and pitch options are available?
This connector series features a 2.50 mm pitch and is available in multiple compatible series including XH2.5, XAD2.5, XA, XHB2.5, and RAST 2.5. The XH Series is the primary wire-to-board configuration, offering broad compatibility with standard 2.5mm pitch systems.
2. What pin counts and mounting configurations are offered?
Standard pin counts include 2P, 3P, 4P, 5P, and 6P with customizable options for higher counts. Mounting options include Vertical SMT, Horizontal SMT, DIP Through-hole, Straight Pin, Right Angle Pin, Vertical Pin, and Horizontal Pin configurations, covering a wide range of PCB layout needs.
3. What is the electrical rating?
Rated for 3A AC/DC at 250V AC/DC (with AWG #22 wire), with a maximum contact resistance of ≤20mΩ (initial), insulation resistance of ≥1000MΩ, and a withstanding voltage of 1000V AC per minute. These ratings ensure reliable signal and power transmission in demanding applications.
4. What is the operating temperature range?
The connector operates from -25℃ to +85℃ (including temperature rise), covering standard consumer, industrial, and automotive interior environments. The high-temperature housing materials (LCP or Nylon 9T) withstand lead-free reflow soldering processes.
5. What materials are used in construction?
The wafer pins are made of Brass with Tin-plated or Gold-plated finish. The housing is manufactured with high-temperature-resistant, flame-retardant plastics (UL94V-0 Rated) such as LCP or Nylon 9T, ensuring structural integrity during reflow soldering and long-term field operation.
6. How does the connector ensure reliable mating?
The housing features a friction lock mechanism that provides a tactile click when fully mated, preventing accidental disconnection in high-vibration environments. The SMT wafers also include robust solder tabs (retaining clips) for superior PCB retention force and resistance to peeling during mating and unmating cycles.
7. Is this connector optimized for automated SMT assembly?
Yes. The wafer is designed with tight tolerances to prevent solder wicking and ensure perfect coplanarity of contacts, making it fully optimized for automated pick-and-place high-speed assembly lines with lead-free reflow soldering profiles.
8. What are the primary application areas?
Key industries include automotive electronics (engine control units, dashboard systems), telecommunications (routers, switching equipment), consumer electronics (home appliances, computing devices), industrial automation (PLC panels, robotic systems), and medical devices (diagnostic and monitoring equipment).
9. Do you provide technical datasheets?
Yes. Request PDF technical drawings and detailed specifications using the form above (click “Download Specifications & Request a Quote”). Our engineering team can also assist with PCB footprint recommendations and application design support.
10. Can I get samples or custom pin counts?
Yes. Samples are available for evaluation. We also support customized pin counts beyond the standard 2P-6P range and custom packaging options for volume production. Contact our sales team via the email below for sample requests, custom configurations, and bulk pricing.
Customization Available:
For custom lengths or bulk pricing, please email us:
nick.xu@lyd123.com
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