TRACOPOWER Switching Regulator, Through Hole, ±12V dc Output Voltage, 13.5 → 24 V dc, 13.5 → 42 V dc

TSRN-1 Series 1A step-down switching regulators with a wide input voltage range of up to 42 Vdc and a high efficiency of up to 95% which allows full load operation without the need for a heatsink or forced air cooling. These TSRN-1 Series 1A step-down switching regulators are suitable for positive and negative output circuits (please refer to table for additional data). Excellent line and load regulation and a low standby current makes these TSRN-1 switching regulators ideal for use in energy sensitive applications.

Input voltage range up to 42 VDC
Built in filter capacitors
No heat-sink required
Over-temperature and short circuit protection
Low standby current: 1 mA for <= 3.3 Vdc output models, 3 mA for >= 5.0 Vdc ouput models
SIP package fits existing TO-220 footprint
Pin compatible with LMxx linear regulators

Part numbers: TSRN 1-xxxx have straight pins
Part numbers: TSRN 1-xxxxA have angular pins
MTBF: MIL-HDBK-217 @ +25°C
Derating: 2.7 %/K above +70°C
For input voltages higher then 36 Vdc an input capacitor 22 μF/ 50 V is required

Get your equipment up and running with this switching regulator from Traco Power. It's a step-down converter that changes an input current of between 13.5 and 42V DC into a 12V DC output. This assembly offers ±0.2% line regulation and ±0.4% load regulation to keep performance on the straight and narrow. You can rest assured that it's built to last, thanks to a high mean time between failures of six million hours. Its through-hole mounting style is ideal in high-vibration environments as it achieves an unshakeable and permanent bond.

• Compact dimensions of 11.7 (L) x 7.5 (W) x 10.2mm (D) make it a space-saving option
• Reliable performance in temperatures between -40°C and +85°C suits use in harsh industrial conditions
• Up to 95% efficiency indicates minimal waste during conversion

• Medical equipment
• Communication and IT networks
• Building automation

No. There's no need for a heat sink with this regulator. Due to its high efficiency, it doesn't produce excess thermal energy and is cooled by free air.