1 Brand: DELTA (台达)，Model: SE03S1203A

2 Type: 3W SMD package DC/DC converter

3 Input voltage range: 9-18VDC (2:1 wide input range)

4 Output characteristics: Single output of 3VDC, max output current 700mA, min output current 70mA

5 Isolation performance: 1500VDC isolation voltage

6 Protection functions: Short circuit protection

7 Performance metrics: Efficiency up to 83%, low ripple and noise, operating temperature range of -40°C to +71°C

8 Certifications: CSA/UL60950-1 safety approval

9 Reliability: MTBF over 1 million hours

10 Compliance: Lead-free, RoHS compliant, 3-year product warranty

11 Package: Industry standard pinout SMD package, weight 8.8g

1 Industrial control systems: Powering embedded control modules in automation equipment

2 Medical devices: Suitable for low-power medical equipment requiring isolated power supplies

3 Data communication: Used in data transmission devices like routers and switches for stable power conversion

4 Telecom applications: Powering telecom modules in base stations or communication terminals

5 IoT devices: For small IoT sensors and modules needing efficient DC/DC conversion

6 Embedded systems: Ideal for embedded circuits in consumer electronics and industrial devices

7 Isolated power applications: Where electrical isolation between input and output is required to ensure safety and reduce interference

1 Input fuse: Use a 750mA slow-blow type fuse for the input circuit (as per 12V input model recommendation)

2 Loading requirement: Ensure minimum output loading to maintain specified voltage regulation; avoid no-load operation

3 Operating environment: Do not exceed the operating temperature range (-40°C to +71°C) or humidity limit (95% non-condensing)

4 Soldering guidelines: Follow SMT soldering standards; lead temperature should not exceed 260°C for 10 seconds at 1.5mm from the case

5 Handling: Avoid water washing of the SMT unit; do not modify the product's pinout or structure

6 Guarantee: Refer to DELTA's official website for complete warranty information; product specifications are subject to change without notice

7 Protection: Prevent reverse polarity input to avoid potential damage; use within the rated current and voltage ranges

SE03S1203A-PDF数据手册-参考资料