What should engineers review before using B0312S-1WR3?

Verify the 2.97 VDC to 3.63 VDC input range, 84 mA maximum output current, 10% minimum load requirement, unregulated output behavior, and 560 µF maximum output capacitive load. The module is rated for 1500 VDC isolation for 1 minute.

What is the pinout of B0312S-1WR3?

Use the B0312S-1WR3 datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about B0312S-1WR3 pinout to locate pins, power rails, and interface signals before layout.

B0312S-1WR3 Datasheet, Specs, Alternatives & ECAD | Mornsun America, LLC

AI summary

B0312S-1WR3 is a compact 1 W isolated, unregulated DC/DC module converting 3.3 VDC nominal input to 12 VDC at up to 84 mA.

Best for

Low-power isolated board rails
Digital circuitry requiring galvanic isolation
Relay-driver auxiliary supplies

Avoid if

Applications requiring tightly regulated 12 V output
Loads below 10% of rated output without a preload resistor
Hot-plug input applications

Check before use

Input voltage remains within 2.97 VDC to 3.63 VDC
Output load is between 10% and 100%
Output capacitor does not exceed 560 µF
Thermal conditions remain within -40 °C to +85 °C

Key specifications

Input voltage: 3.3 VDC nominal; 2.97 VDC to 3.63 VDC
Output: 12 VDC, 84 mA maximum
Rated power: 1 W
Isolation: 1500 VDC for 1 min
Efficiency: 75% minimum, 78% typical at full load
Package: SIP-4, 11.50 mm × 6.0 mm × 10.0 mm

Application

Isolated auxiliary power railsDigital control circuitsRelay driver circuits

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Alternative components

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Design and risk insights

Questions & answers

B0312S-1WR3 is a YLPTEC 1 W isolated, unregulated single-output DC/DC converter in a 4-pin SIP package. It has a 3.3 VDC nominal input and a 12 VDC output.