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The RECOM Power R-78W3.3-0.5 is a 0.5 Amp DC/DC switching regulator designed for stable voltage supply applications. It offers high efficiency up to 96%, eliminating the need for heatsinks. The device features continuous short circuit protection and a low profile, making it suitable for applications like high power LED lighting, battery powered systems, cooling systems, or fans.
Key electrical specifications include an input voltage range of 6.5VDC to 32VDC, a nominal output voltage of 3.3VDC, and an output current of 500mA. The efficiency is rated at 88% minimum at full load. The converter operates with a typical internal operating frequency of 330kHz and has an output ripple and noise of 50mVp-p.
Mechanically, the R-78W3.3-0.5 has a compact size with dimensions of 17.5mm x 11.5mm x 8.5mm. It is designed for chassis mounting. The operating temperature range is -40°C to +85°C, with a maximum case temperature of +100°C. The device also includes built-in diode protection and reverse current protection.
Environmental compliance includes RoHS3 compliance and an MSL rating of 1. The converter is suitable for ITE (Commercial) applications and operates at altitudes up to 2000m.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The input voltage range is from 6.5VDC to 32VDC.
The output voltage is 3.3VDC.
The maximum output current is 0.5A.
The typical efficiency is 88%, with up to 96% maximum.
The package dimensions are 17.5mm in length, 11.5mm in width, and 8.5mm in height.
The operating temperature range is from -40°C to +85°C.