The BWR series mixed voltage 5V and 3.3V dual output DC/DC converters provide 33W of power and have an input voltage range of 10-18V, 18-36V or 36-75V. They are housed in a compact 2” x 2” x 0.45” package, have been certified to UL1950 and EN60950-1, and feature continuous short-circuit protection, full isolation, 1500Vdc guarantee, -40 to +100°C operating temperature, input undervoltage and overvoltage shutdown, output overvoltage protection and thermal shutdowns.
The BWR‑5/6‑3.3/7‑D12/D24/D48 family delivers up to 33 W of combined power from two regulated outputs (5 V @ 6 A, 3.3 V @ 7 A). The converters are fully isolated (1500 VDC), operate from 10‑75 V input ranges, and meet UL1950, EN60950‑1 and IEC950 safety standards. They feature no‑load operation, continuous short‑circuit protection, over‑voltage/under‑voltage shutdown, thermal shutdown, and optional on/off control.
The handbook includes an ordering guide, pin‑out diagram, performance curves, and detailed specifications such as efficiency, ripple, and temperature limits. It also describes optional functions like output trimming and external capacitor recommendations, as well as protection mechanisms and mechanical dimensions of the 2" × 2" × 0.45" metal case.
| Output Voltage (VOUT) | 5 V and 3.3 V |
|---|---|
| Maximum Output Current | 5 A @ 5 V, 7 A @ 3.3 V |
| Input Voltage Range | 10‑18 V (D12), 18‑36 V (D24), 36‑75 V (D48) |
| Isolation Voltage | ≥1500 VDC |
| Efficiency (typical) | ≈88 % |
| Operating Temperature | –40 °C to +100 °C (derated to +68 °C for D48) |
| Package Size | 2" × 2" × 0.45" (50.8 × 50.8 × 11.43 mm) |
It provides regulated 5 V and 3.3 V outputs.
The D12 model accepts 10‑18 V, D24 accepts 18‑36 V, and D48 accepts 36‑75 V.
Yes, a trim pin allows ±5 % adjustment of both outputs.