Supplied in 2.28 x 2.4 x 0.55 in. package, half-brick HE Series offers 3.3 and 5 V (primary) and ±12, ±15, and ±17 Vdc (auxiliary) output voltages. Input to output isolation is 700 Vdc for 18–36 V input models and 1,544 Vdc for 36–75 V models, and respective full load input current is 3.67 and 1.8 A. No-load input current is 15 mA for all models, and UVLO and reverse polarity protection is standard. Other features include 325 kHz switching frequency and efficiencies up to 89%.