Recom Switching Regulator, Through Hole, 9V dc Output Voltage, 12 → 28V dc Input Voltage, 500mA Output Current,

The Recom R-78E series are highly efficient, non-isolated switching regulators. They offer a high-quality product at a low cost in production quantity. Coupled with the compact design, this module is ideal across a number of industrial applications.

With a high start-up current capability and a high efficiency of up to 95%, there is no need for heat sink and with the compact SIP3 package important space on the board is also saved.

• R-78E Series
• Low cost switching regulator
• High start-up current capabilities
• Short circuit protection
• High efficiency of up to 95%
• High efficiency, non-isolated, no need for heatsinks
• Pin compatible with 78 series regulators
• SIP3 package

Power derates above 70°C

This switching regulator from RECOM adapts supply voltages to suit your PCB-mounted devices. Its step-down switching function works with input voltages between 12 and 28V DC, so it's compatible with many power sources. The device's precise line regulation of ±0.5% means it provides a stable 9V DC output voltage, so you get a reliably smoothed electrical supply. For system safety, this regulator comes with integrated short-circuit protection. This feature means it resets itself automatically after electrical faults, so you can restart your machines quickly.

• Compact dimensions of 11.6 (W) x 10.4 (H) x 8.5mm (D) for a small footprint on your PCB
• Simple through-hole mounting makes installation easy
• Low maximum ripple voltage of 50mV reduces electrical noise
• Works at temperatures between -40°C and +85°C to suit demanding industrial conditions

• Video cameras
• Television displays
• Radio communication systems
• Automotive industry

No, you don't need a heatsink to use this switching regulator safely. Thanks to its maximum efficiency rate of 94%, it doesn't generate enough heat to call for an external sink.