SEA Component Gmbh - the official distributor


The new TSRN-1SM series are step-down non–isolated switching regulators in compact SMD package. They are an ideal solution to replace inefficient linear regulators. The high efficiency up to 95 % allows full load operation up to +55°C (+85°C with derating) ambient temperature without the need of forced air cooling. The TSRN-1SN switching regulators provide other significant features over linear regulators, i.e. better output accuracy (±2 %), lower standby current of ~4 mA and no requirement of external capacitors. They are suitable for positive or negative output circuits and offer a trim input for output voltage adjustment. The high efficiency, low standby power consumption and remote On/Off function make these regulators an ideal solution for energy sensitive applications.

October 2014: Active

Product is recommended for new designs.

Keep me updated

Keep me informed

With this service we keep you informed about any modification or status change of your selected product series. We will send you an email with the access link to your account (if existing) or to the subscription form.
Please enter your email address:



  • Compact SMD package
  • Suitable for positive & negative output circuit
  • Adjustable output voltage
  • Wide input up to 42 VDC
  • Remote On/Off input
  • Built in filter capacitors
  • Operation temp. range –40°C to +85°C
  • No heat-sink required
  • Over-temperature protection
  • Short circuit protection

Showing 1-6 of 6 items.
TSRN 1-2490SM10.5 - 42 VDC9 VDC / 1000 mACall
TSRN 1-24120SM13.5 - 42 VDC12 VDC / 1000 mACall
TSRN 1-24150SM16.5 - 42 VDC15 VDC / 1000 mACall
TSRN 1-0525SM3 - 5.5 VDC2.5 VDC / 1000 mACall
TSRN 1-2433SM4.6 - 42 VDC3.3 VDC / 1000 mACall
TSRN 1-2450SM6.5 - 42 VDC5 VDC / 1000 mACall