1 3W DC-DC converter with isolated output, belonging to GAPTEC's 357B_3U series

2 Compact 7-pin SIP package, small footprint ideal for space-limited applications

3 3000VDC isolation between input and output, ensuring electrical safety

4 Wide operating temperature range: -40°C to +85°C, suitable for harsh industrial environments

5 No external components required for normal operation

6 Internal SMD construction for high reliability and long service life

7 Low ripple and noise performance, meeting strict EMC standards

8 Short circuit protection (1-second duration) to prevent device damage

9 RoHS compliant and CE certified, adhering to international environmental and safety regulations

10 No heat sink needed, simplifying installation and reducing system cost

11 High efficiency up to 85% (varies by model) for energy-saving operation

12 Fixed input voltage and semi-regulated output voltage to meet specific application needs

1 Industrial control systems: Isolated power supply for sensors, actuators, and PLC modules

2 Embedded electronic devices: Powering microcontrollers, memory units, and peripheral circuits in compact designs

3 Telecommunication equipment: Isolated power for line cards, transceivers, and signal processing components

4 Instrumentation and measurement devices: Stable, low-noise power for precision sensors and data acquisition systems

5 Medical electronics: Isolated power for patient monitoring devices and diagnostic equipment to ensure user safety

6 IoT devices: Powering connected sensors and wireless modules in distributed IoT networks

7 Automotive electronics: Suitable for in-vehicle applications requiring isolated power (within specified temperature range)

1 Operating under minimum load may increase output noise and shorten product lifespan; it is recommended to operate within the specified load range

2 All specifications are tested at 25°C ambient temperature, 75% humidity, and nominal input voltage; performance may vary under different conditions

3 Short circuit protection is active for up to 1 second; avoid prolonged short circuits to prevent permanent damage

4 Storage temperature range: -40°C to +125°C; store in a dry environment with relative humidity ≤65%

5 The case is made of non-conductive black plastic (UL94-V0), providing fire resistance

6 No external heat sink required, but ensure adequate convection cooling during operation

7 Follow the recommended footprint and pin connections for correct installation

8 For applications requiring EMC compliance, refer to the EMI filter circuit provided in the datasheet

9 Contact the manufacturer for specific model parameters if not listed in the general series specs

3S7B_1209D3U-PDF数据手册-参考资料