DC/DC Converter
B_S-1WR3 Series FEATURES 1W isolated DC-DC converter
Fixed input voltage, unregulated single output Continuous short-circuit protection No-load input current as low as 8mA Operating ambient temperature range:
-40℃ to +105℃ Patent Protection Report
EN 62368-1 Report
BS EN 62368-1 CB High efficiency up to 85% I/O isolation test voltage: 1.5k VDC Industry standard pin-out RoHS IEC 62368-1 B_S-1WR3 series are specially designed for applications where an isolated voltage is required in a distributed power supply system. They are
suitable for: pure digital circuits, low frequency analog circuits, relay-driven circuits and data switching circuits. Selection Guide
Input Voltage (VDC)
Certification -EN/BS EN Nominal Voltage (Range) (VDC) Current (mA)
Max./Min. Full Load
Efficiency (%)
Min./Typ. B0303S-1WR3 3.3 303/30 75/79 2400 B0305S-1WR3 5 200/20 78/82 2400 Part No. B0309S-1WR3 9 111/11 81/85 1000 83/8 78/82 560 B0315S-1WR3 15 67/7 78/82 560 B0324S-1WR3 24 42/4 80/84 220 B0503S-1WR3 3.3 303/30 70/74 2400 B0505S-1WR3 5 200/20 78/82 2400 B0509S-1WR3 9 111/12 79/83 1000 B0512S-1WR3 5
(4.5-5.5) 12 84/9 79/83 560 15 67/7 79/83 560 B0524S-1WR3 24 42/4 81/85 220 B1203S-1WR3 3.3 303/30 71/75 2400 B1205S-1WR3 5 200/20 76/80 2400 9 111/12 76/80 1000 12 83/9 76/80 560 B1215S-1WR3 15 67/7 77/81 560 B1224S-1WR3 24 42/5 77/81 220 B1505S-1WR3 5 200/20 76/80 2400 9 111/12 76/80 1000 12 83/9 76/80 560 15 67/7 77/81 560 B1509S-1WR3
B1512S-1WR3
B1515S-1WR3 EN/BS EN/IEC 3.3
(2.97-3.63) B0515S-1WR3 B1212S-1WR3 -Capacitive
Load(µF)
Max. 12 B0312S-1WR3 B1209S-1WR3 EN/BS EN/IEC Output 12
(10.8-13.2) 15
(13.5-16.5) B1524S-1WR3 24 42/5 77/81 220 B2403S-1WR3 3.3 303/30 69/75 2400 B2405S-1WR3 5 200/20 73/79 2400 B2409S-1WR3 9 111/12 74/80 1000 12 83/9 75/81 560 B2415S-1WR3 15 67/7 75/81 560 B2424S-1WR3 24 42/5 75/81 220 B2412S-1WR3 24
(21.6-26.4) Input Specifications
Item Operating Conditions Min. Typ. Max. Input Current
(full load / no-load) 3.3V input 3.3VDC output -384/10 405/-Other output -370/18 389/-2024.09.10-A/6 Unit …
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