1 Isolated 1W unregulated single-output DC/DC converter (model: PUB2405S1M)

2 Nominal input voltage:24Vdc (±10% range:21.6V~26.4V), output voltage:5.0Vdc, output current:0.2A

3 Industry-standard SMD package (12.75×11.2×6.6mm)

4 High efficiency: typical 75% at full load

5 3000Vdc galvanic isolation between input and output

6 Wide operating temperature range: -40°C to +110°C

7 No minimum load requirement for stable operation

8 Built-in output short-circuit protection

9 Long mean time between failures (MTBF):17.9 million hours (calculated at 25°C ambient, max load)

10 Safety compliance: EN/UL 62368-1 (audio/video, information and communication technology equipment safety)

11 Quality certifications: ISO9001/14001

12 RoHS compliant (meets RoHS directive 2011/65/EU requirements)

1 Industrial control systems requiring galvanic isolation between power stages

2 Telecom equipment (compatible with ETS-300132-2 DC power interface specifications)

3 Audio/video devices and information/communication technology equipment

4 Embedded systems in industrial environments (e.g., sensor modules, microcontroller power supplies)

5 PCB-mounted power conversion for low-power components needing stable 5V output from a 24V source

6 Applications where no minimum load is needed (e.g., battery-powered devices with variable load)

7 Equipment operating in wide temperature ranges (from cold industrial areas to high-heat environments)

1 Ensure input voltage is within ±10% of nominal 24V (21.6V~26.4V) as there is no under-voltage lockout function

2 Use a slow-blow fuse at the input of each converter (place before input filter if used)

3 Not designed for parallel operation without external current sharing circuits

4 For EMI compliance (EN55032/CISPR32/FCC Part15J Class B), use recommended external filter:22µH inductor +10µF capacitor

5 PCB layout guidelines: Connect ground layer to output and equipment chassis; reserve Cy1 (33pF~470pF) for better EMI performance

6 When powering dynamic loads, add decoupling capacitors (low ESR ceramic + electrolytic) close to the load to improve voltage regulation

7 Reflow soldering (Pb-free process):

8 Peak product temperature ≤250°C

9 Pin temperature ≥235°C

10 Time above solder melting point (221°C) ≥60 seconds

11 Average ramp-up rate ≤3°C/s, ramp-down rate ≤6°C/s

12 Do not exceed maximum operating temperature (110°C at TP1/TP2 reference points)

13 No-connect pins should remain unconnected

14 The converter is a component; ensure the final product housing it complies with all applicable safety standards

PUB2405S1M-PDF数据手册-参考资料