RKZ3-0505S

The RKZ3-0505S is an isolated DC-DC converter from the RKZ3 series by Recom Power. It provides a regulated 5V output from a nominal 5V input (range 4.5V to 5.5V) with a maximum output current of 600mA, delivering 3W of power. The converter features 3kVDC isolation (standard) with an optional 4kVDC isolation variant (H suffix). With an efficiency of up to 85% typical, it is suitable for demanding industrial applications such as bus isolators, ground loop breaking, and multi-channel input separation.

The converter operates at an internal frequency of 20kHz and offers an output ripple and noise of 100mVp-p (20MHz BW). It has a line regulation of 1.2% typical and a load regulation of 15% maximum. The output accuracy is ±3% typical and ±4% maximum. It requires no minimum load, and can handle a maximum capacitive load of 2000µF. The start-up time ranges from 0.3ms to 250ms, with a rise time of 0.3ms to 0.5ms.

The RKZ3-0505S is housed in a 7-SIP module (4 leads) with through-hole mounting. Dimensions are 19.6mm x 7.5mm x 12.2mm. The operating temperature range is -40°C to 90°C. It is safety certified to IEC/EN62368-1. Compliance data indicates RoHS3 compliant, REACH unaffected, and MSL level 1 (unlimited), though these are unverified from the datasheet.