Fischer Elektronik adds low height universal transistor retaining springs
Electronic semiconductors are routinely mounted to a heat sink and Fischer Elektronik offers various mounting options with a range of transistor retaining springs. They guarantee a high contact pressure as well as a permanent and reliable contact, togehter with a consistently good heat transfer between the device and the heat sink.
Fischer Elektronik has expanded its range of transistor retaining springs to include new universal multiple transistor retaining versions. The THFM 11 and THFM 20 series multiple transistor retaining springs are made of 0.8mm thick stainless steel. They are characterised by a low installation height. The contour and dimensions of the THFM 11 and THFM 20 retaining springs are adapted to the different types of transistors, such as TO 218, TO 220, TO 247, TO 248 and TO 264. The universal multiple transistor retaining springs have several individual retaining elements positioned at a distance on a strip. The customer can choose from one to 10 retaining elements and they can be adapted to the application. The retaining spring strip is attached to the heatsink or other mounting point by means of a screw connection so that the spring geometry presses on the device from above via a lever effect. An alternative mounting method is for the transistors to be inserted under the spring.
