The DG250 / KF250B / KF250A 3.5 mm push-in spring terminal block is a screwless PCB connector for fast, vibration-proof wiring. Insert the stripped wire, and the stainless push-in spring clamps it instantly — press the button to release. Available in eleven colors, 2P and above, with factory-direct pricing and low MOQ.
Product Specification Parameters
| Item | Specification |
|---|---|
| Series / Model | DG250, KF250B, KF250A (3.5 mm pitch) |
| Connection technology | Push-in spring (screwless), press-button release |
| Pitch | 3.5 mm |
| Rated voltage / current | 300 V AC / 8 A |
| Wire range | AWG 22–16 (0.5–1.5 mm²), strip length 8–10 mm |
| Pin style | Staggered (offset) PCB pins, 0.75 × 0.40 mm cross-section |
| Body height / width | 16.5 mm / 12.0 mm |
| PCB mounting holes | Ø1.20 mm on a 3.50 × 5.10 mm grid |
| Block length | L = 3.5 mm × poles + 1.5 mm |
| Housing | Flame-retardant PA66 nylon, copper-alloy current bar with stainless spring |
| Colors | Red, blue, green, grass green, purple, yellow, gray, orange, black, brown, white |
| Poles | 2P and above, custom pole counts on request |
| Certifications | ISO9001 factory, CE, cURus, CQC, TÜV SÜD |
Core Advantages
1. Tool-Free Push-In Wiring, 50% Faster
No screws, no crimp torque. Wires with 8–10 mm stripping push straight into the round entry, cutting assembly time roughly in half versus screw terminals — ideal for high-volume PCB assembly.
2. Vibration-Proof, Maintenance-Free Connection
The stainless steel spring applies a constant clamping force on the conductor, so the joint never loosens under shock, vibration or thermal cycling — no periodic re-tightening.
3. Staggered Pin, Space-Saving Footprint
Offset pins on a 3.50 × 5.10 mm grid with Ø1.20 mm holes increase solder-joint strength and electrical clearance while keeping the 3.5 mm pitch compact.
4. Eleven Colors for Circuit Identification
Red, blue, green, grass green, purple, yellow, gray, orange, black, brown and white housings — custom multi-color mixes within one strip are welcome for OEM branding or phase coding.
How to Wire
Typical Applications
More Styles & Related Products
Certifications & Quality Control
Produced under ISO9001 / ISO14001 systems and certified to CE, cURus, CQC and TÜV SÜD. Every batch is 100% tested before shipment.
Dimension Drawing
Why Choose Good Electric
- 20+ years manufacturing wire terminals and PCB connectors
- UL, TÜV, CE, RoHS and CCC certified product lines
- Factory-direct pricing, flexible MOQ, samples welcome
- OEM / ODM: custom molds, colors, markings and packaging
Request a Quote
Tell us your pole count, color and quantity — our engineering team replies within 24 hours. See also our terminal technology comparison and the PCB terminal block pitch guide.
