STH05 Series

0.5 Amp STH05 series surface mount SMD10 wide input 48VDC nominal switching regulators

The STH05 series wide input voltage switching regulators, are ideally suited to 48VDC bus PoL applications. With efficiency up to 92%, very little energy is wasted as heat so there is no requirement for a heatsink, giving significant space saving and providing flexibility for the PCB design.

These non-isolated DC-DC converters offer a simple step-down voltage conversion and good line/load regulation, low ripple & noise with a low quiescent current (no load) of 3mA. Remote on/off is provided by a control pin, when inhibited the input current is just 1mA. The output has continuous short circuit protection with automatic reset.

The STH05 provide a low-cost point of load (PoL) solution for: Distributed DC supply systems not needing isolation but where regulation is required; Embedded computing; Sensors; Robotics; Telecommunications; Instrumentation; Portable & battery-operated equipment



  • Non-isolated 0.5A switching regulator
  • Regulated single outputs 3.3 to 15VDC
  • ±10% output trim
  • Input range up to 72VDC
  • Low profile SMD10 package
  • No heatsink required
  • Short-circuit protection
  • Remote On/Off
  • Tape & reel option
  • High efficiency up to 92%
  • Class B conducted & radiated emissions with external components
  • -40°C to +100°C operating temperature
  • Full load to +60°C
  • 3 year warranty
Image Model Name Power Input Voltage Output Voltage Output Current Datasheet Stock Check RFQ
STH0548S05 2.5W 9 to 72VDC 5V 0.5A Datasheet Stock RFQ
STH0548S09 4.5W 14 to 72VDC 9V 0.5A Datasheet Stock RFQ
STH0548S12 6W 17 to 72VDC 12V 0.5A Datasheet Stock RFQ
STH0548S15 6W 21 to 72VDC 15V 0.4A Datasheet Stock RFQ
STH0548S3V3 1.65W 9 to 72VDC 3.3V 0.5A Datasheet Stock RFQ
STH0548S6V5 3.25W 9 to 72VDC 6.5V 0.5A Datasheet Stock RFQ
STH0548S7V2 3.6W 14 to 72VDC 7.2V 0.5A Datasheet Stock RFQ
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