KF2510 & KK254 2.54mm Pitch Wire-to-Board PCB Connectors
KF2510 & KK254 2.54mm Pitch Wire-to-Board PCB Connectors – Universal Signal & Power Interconnection
Yoeruyo's KF2510 and KK254 connector range provides versatile wire-to-board interconnection at the 2.54mm (0.1 inch) pitch — the most widely adopted spacing in PCB connector design. KF2510 refers to the wire-side housing and crimp terminal system; KK254 (also known as KK 0.1" or Molex KK 254 compatible) refers to the PCB header counterpart. Together, these form a complete, field-wireable connector system used across consumer electronics, industrial control, test equipment, and development board applications worldwide.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Pitch | 2.54mm (0.1 inch) |
| Circuit Count | 2 to 16 circuits (single row) |
| Wire Range | 0.08mm² – 0.33mm² (AWG 28–22) |
| Rated Voltage | 250V AC/DC |
| Rated Current | 3A per contact |
| Contact Material | Copper alloy, tin or gold plated |
| Housing Material | PA66 (Nylon 66), UL94 V-0, natural or black |
| Operating Temperature | -25°C to +85°C |
| Locking | Positive latch with audible click |
| Mating Cycles | ≥30 cycles |
| Compliance | RoHS, REACH |
Product Components
- KF2510 wire-side housing (plug) – single-row receptacle housing accepting 2.54mm crimp terminals; 2 to 16 circuits
- KK254 PCB header – vertical (through-hole) – straight PCB-mount header compatible with KF2510 housing; for wave or hand soldering
- KK254 PCB header – right-angle (through-hole) – 90° orientation for edge-mount and space-constrained PCB layouts
- Crimp terminals (female) – stamped copper alloy terminals for crimping onto AWG 22–28 wire
- Pre-crimped wire assemblies – custom wire-to-connector assemblies for OEM integration, available in specified lengths and circuit counts
Application Scenarios
- Consumer electronics – internal wire-to-board connections in routers, set-top boxes, smart home devices, and home appliances
- Development boards & prototyping – Arduino, Raspberry Pi, ESP32, and STM32 board wire connections using the universal 2.54mm pitch standard
- Industrial control & automation – PLC I/O wiring, sensor connections, and relay board signal wiring in industrial control panels
- Test & measurement equipment – internal board wiring and probe connections in bench instruments and automated test equipment
- LED lighting & drivers – power and signal connections in LED strip controllers, smart lighting modules, and driver boards
- Robotics & maker projects – motor driver connections, sensor wiring, and power distribution in DIY robotics and maker community projects
Why Choose Yoeruyo KF2510 / KK254 Connectors
- ✅ Universal 2.54mm pitch – compatible with Molex KK 254 series and all equivalent 2.54mm wire-to-board connector systems
- ✅ Positive-latch retention – audible click confirmation prevents accidental disconnection in vibration-prone environments
- ✅ Tin & gold plating options – tin for cost-effective production; gold for high-reliability and high-cycle applications
- ✅ Bulk & OEM supply – flexible MOQ and tiered pricing for electronics manufacturers, panel builders, and distributors
- ✅ RoHS & REACH compliant – halogen-free materials meet EU and global environmental standards
Buying Guide – Selecting the Right Component
- Circuit count – select the number of circuits to match your wiring requirements; available from 2 to 16 positions in single-row configuration
- Wire gauge – KF2510/KK254 terminals accept AWG 28–22 (0.08–0.33mm²); confirm your wire gauge before ordering terminals
- PCB header orientation – vertical for standard wire-to-board connections; right-angle for edge-mount and space-constrained PCB layouts
- Tin vs gold plating – tin for cost-effective production use; gold for high-cycle, high-reliability, or corrosive-environment applications
- Pre-crimped assemblies – for OEM integration, pre-crimped wire assemblies eliminate crimping tool requirements and reduce assembly time and error rate
Frequently Asked Questions
What is the difference between KF2510 and KK254?
KF2510 refers to the wire-side housing (plug) and crimp terminal system. KK254 (or KK 0.1") refers to the PCB-mount header (receptacle). Together they form a mating pair — KF2510 housing plugs into the KK254 PCB header to create a complete wire-to-board connection.
Are these compatible with Molex KK 254 series?
Yes. Yoeruyo KF2510/KK254 housings and PCB headers are dimensionally compatible with Molex KK 254 series connectors (Molex 22-01-2xxx housings and 22-28-4xxx PCB headers). They mate correctly with genuine Molex KK 254 counterparts.
What wire gauge is supported?
KF2510/KK254 crimp terminals accept wire from AWG 28 to AWG 22 (0.08mm² to 0.33mm²). This covers most signal and low-power wiring applications at the 2.54mm pitch.
Do you offer pre-crimped wire assemblies?
Yes. Custom wire-to-connector assemblies with pre-crimped KF2510 terminals are available in specified wire lengths, gauges, and circuit counts. Contact us for OEM assembly quotations and lead times.
Do you offer bulk pricing for electronics manufacturers?
Yes. Yoeruyo offers tiered pricing for orders of 500 units or more. Contact us for volume quotations, mixed-SKU orders, and OEM packaging options for production line integration.
