The 2.5mm single row straight pin PCB terminal block is a very common electronic connector, with its core feature being that the pins are arranged in a single row of straight lines, the distance (spacing) between the center points of adjacent pins is 2.5 millimeters, and the pins are straight pins perpendicular to the circuit board (PCB). It is mainly used to achieve reliable electrical connections between wires and circuit boards on circuit boards.
Item No :
H2EDGV-2.5Payment :
T/TProduct Origin :
ChinaColor :
green ,we can also make other color if meet moq
The 2.5mm single row straight pin PCB terminal block is the most basic and universal board-to-wire connector. Its core function is to serve as a reliable and detachable electrical bridge between external wires and printed circuit boards (PCBs).
As the "foundation" for electronic engineers, this terminal block provides a standard, economical, and reliable connection channel. When selecting, focus on the three core elements: current capacity, wiring method, and wire gauge.
| 2 pin | 3 pin | 4 pin | 5 pin | 6 pin | 7 pin |
| 8 pin | 9 pin | 10 pin | 11 pin | 12 pin | 13 pin |
| 14 pin | 15 pin | 16 pin | 17 pin | 18 pin | 19 pin |
| 20 pin | 21 pin | 22 pin | 23 pin | 24 pin | Custom |
| Material Properties | |
|---|---|
| Housing Material | PA66, UL94V-0 (Flame Retardant) |
| Pin Header | Copper alloy, Tin Plated |
| Electrical Parameters | |
| Rated Voltage (UL / IEC) | 150V / 130V |
| Rated Current (UL / IEC) | 5A / 10A |
| Contact Resistance | 20mΩ (MAX) |
| Insulation Resistance | 500MΩ / DC500V |
| Withstanding Voltage | AC 1250V / 1 Min |
| Mechanical Parameters | |
| Operating Temperature Range | -40℃ ~ +105℃ |
| MAX Soldering Temperature | +250℃, for 5 Sec. |
Please refer to the following engineering drawing for exact PCB layout and pin dimensions:
The 2.5mm pluggable terminal block is widely utilized across various demanding sectors:

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A: Yes, they are highly reliable for industrial PCB projects when using qualified through-hole pin headers. Our high-quality 2.5mm male header terminals adopt tin-plated copper pins and strict coplanarity control, ensuring full contact during wave soldering. In actual cabinet production, well-soldered terminals show stable conductivity and strong anti-loosening performance, fitting long-term continuous operation for controllers and automation boards.
A: Most standard 2.5mm PCB pluggable terminals support a 5A to 10A rated current. However, in field engineering, we do not suggest running them at maximum current continuously. Due to dense PCB layouts and cabinet heat accumulation, reserving a 20% current margin effectively avoids overheating and extends the terminal's service life.
A: The biggest on-site advantage is maintainability and replaceability. Fixed screw terminals require rewiring during board repair, whereas 2.5mm pluggable structures support direct plug-and-unplug. Engineers can quickly replace modules without changing internal wiring, greatly reducing after-sales maintenance time for automation and IoT devices.
A: Yes, our industrial-grade 2.5mm male headers are fully compatible with wave soldering. They use high-temperature PA66 UL94 V-0 housing. The pins are fixed with knurled and rivet structures to prevent loosening during high-temperature welding. Strict pin coplanarity guarantees uniform soldering and zero empty solder joints in mass production.
A: They are ideal for compact industrial devices that require stable signal and low-power connections. Common on-site applications include motion controllers, protection devices, smart meters, security equipment, and IoT automation modules. The 2.5mm universal pitch balances compact size and versatility, making it the most cost-effective option for small and medium-sized PCB control boards.