OGN Series Open Fuse Holders

SCHURTER OGN series open fuse holders for 5 mm x 20 mm fuses are compatible with the through-hole reflow (THR) solder processes, in addition to the existing through-hole technology (THT) and surface mount technology (SMT) versions.

SMT components are used for PCB assemblies. Ideally, these components are compatible with solder reflow processes to fully automate the assembly. While THT components offer a board-mounted solution, they are typically not designed for the rigors of a reflow process. In these cases, a second soldering step is necessary. The additional manual step required for THT assembly is time-consuming and allows an additional margin for error.

The solution is THR components, combining the features of PCB THT mounting with a component capable of withstanding the high thermal stress of a reflow oven. The THR component is first printed into the pin vias and then pushed through the solder paste. As the paste melts in the reflow oven, the liquid solder retracts into the vias due to wetting and capillary forces to form the solder joint.

OGN series open fuse holders are designed for various types of 5 mm x 20 mm fuses. The series can be enclosed with an optional cover. The OGN series also complies with enhanced fire safety requirements and features glow wire resistance according to IEC 60335-1.