WTB-XH-4P-CR
2.5mm pitch 4-pin crimp connector for general purpose applications Ideal for industrial and consumer applications with excellent performance and reliability.
Product Overview
Description
The WTB-XH-4P-CR is a versatile 2.5mm pitch wire-to-board connector suitable for a wide range of applications.
This crimp-style connector features tin-plated brass contacts and supports wire gauges from AWG 26 to AWG 20.
The positive locking mechanism ensures secure mating and prevents accidental disconnection.
Product Series
WTB
Primary Application
Industrial control panels
Key Features
- 2.5mm standard pitch
- Supports AWG 26-20 wire
- 7A current rating per contact
- Positive locking mechanism
- Polarized housing prevents mis-mating
- Nylon 66 UL94V-0 housing
Specifications
| Pitch | 2.5mm |
|---|---|
| Positions | 4 |
| Wire Gauge | AWG 26-20 |
| Current Rating | 7A per contact |
| Voltage Rating | 250V AC |
| Contact Resistance | ≤10mΩ |
| Termination Type | Crimp |
| Locking Type | Positive lock |
Applications
Industrial control panels
Industrial automation and control
Appliance controls
Industrial automation and control
LED lighting systems
Electronic system design
HVAC equipment
Electronic system design
FAE Expert Insights
"The WTB-XH series is my top recommendation for general-purpose wire-to-board applications. The 2.5mm pitch strikes a good balance between size and current capacity. The positive lock mechanism provides excellent retention - I've seen these connectors pass 50G shock tests in industrial equipment. The crimp contacts are easy to work with using standard tooling. For high-vibration applications, I recommend adding the optional locking clip. The wide wire gauge range (AWG 26-20) provides flexibility for various applications."
Versatile connector with excellent locking mechanism for industrial use
— Sarah Liu, BeiLuo
Frequently Asked Questions
What crimp tool is recommended for WTB-XH-4P-CR?
The recommended crimp tool for WTB-XH-4P-CR is the Bronze Tech CT-XH-01 hand crimp tool for low-volume production and field service. For high-volume manufacturing, use the CT-XH-AUTO pneumatic crimp tool. Both tools provide consistent crimp quality with proper compression force. The die set for AWG 26-20 is included. Always verify crimp quality by measuring pull force (minimum 5kgf for AWG 24) and inspecting the crimp cross-section.
Use hand tool for prototyping/low volume. Use pneumatic tool for production.
What is the maximum current for WTB-XH-4P-CR?
The WTB-XH-4P-CR is rated for 7A per contact with all contacts powered. This rating is based on a 30°C temperature rise above ambient using AWG 20 wire. When using smaller wire (AWG 24-26), the current capacity may be limited by the wire rather than the connector. For higher current applications, consider the WTB-VH series rated for 15A. Always verify the temperature rise under your specific operating conditions and ensure adequate wire gauge for the current.
Use 7A rating with AWG 20. Consider VH series for higher current needs.
Is WTB-XH-4P-CR suitable for outdoor applications?
The standard WTB-XH-4P-CR has a nylon housing rated for indoor use. For outdoor applications, use the WTB-XH-4P-CR-WP version with IP65 rating and weather-resistant housing material. The WP version features additional sealing and UV-resistant housing. For harsh outdoor environments with exposure to chemicals or extreme temperatures, consider the WTB-XH-4P-CR-HE high-environment version with enhanced sealing and extended temperature range (-55°C to +125°C).
Use standard for indoor, WP version for outdoor, HE version for harsh environments.
What is the mating cycle rating for WTB-XH-4P-CR?
The WTB-XH-4P-CR is rated for 50 mating cycles minimum while maintaining electrical and mechanical specifications. This rating assumes proper mating alignment and clean operating conditions. For applications requiring frequent connection/disconnection, consider the WTB-XH-HD series rated for 200+ cycles. To maximize connector life, ensure the locking mechanism is fully engaged and disengaged during operation - never pull on the wires to disconnect.
50 cycles sufficient for fixed installations. Use HD series for frequent mating.
Can WTB-XH-4P-CR be used with ribbon cable?
The WTB-XH-4P-CR is designed for discrete wire crimping and is not compatible with ribbon cable. For ribbon cable applications, use the WTB-XH-4P-IDC version with insulation displacement contacts designed for flat ribbon cable. The IDC version supports standard 1.27mm pitch ribbon cable and provides quick, tool-free installation. For discrete wire applications, the crimp version provides better reliability and lower contact resistance.
Use crimp version for discrete wires, IDC version for ribbon cable.