The new CT319 and CT320 surface-mount current sense transformers feature a low-seated profile of 0.16 and 0.394 in., respectively, above the circuit board and operate over a temperature range of -55°C to +155°C.

The CT319 Series senses current output changes to provide feedback for overload detection, emergency shutdown functions, and power regulation. It is designed to perform optimally at frequencies of 100 kHz and above. Key electrical parameters include an inductance of 100-11,000 μH, a resistance of 0.50-27.50 ohms maximum, and an isolation voltage of 500 Vrms minimum. Miniature in size, it measures 0.157 by 0.31 in. and stands 0.157 in. high. It is manufactured with UL94V0 compliant materials.

The CT320 Series performs optimally at frequencies of 50 kHz and above. Key electrical parameters include an inductance of 0.3-29 μH, a resistance of 1.4-14 ohms maximum, and an isolation voltage of 500 Vrms minimum. It measures 0.56 by 0.785 in. and stands 0.394 in. high. It is also manufactured with UL94V0 compliant materials.

CT319 and CT320 Series transformers are compatible with high-speed automated pick-and-place assembly and high-temperature soldering equipment. They are available in tube as well as tape-and-reel packaging. Custom designed transformers can be specified to meet unique circuit requirements.

In typical production volumes, the CT319 Series is priced from 67 cents each and the CT320 Series is priced from 96 cents each.