MEAN WELL SBTN01N-05 1W DC-DC Converter Module, 5V Input, 5V Output, 200mA, SMD, Isolated

Embedded systems developers and PCB designers often need a compact, isolated power source for sensors, gate drivers, or communication interfaces. The MEAN WELL SBTN01N-05 delivers a regulated 5V output from a 5V input, providing galvanic isolation up to 1000 VDC in a surface-mount package. Its tiny footprint and low profile make it ideal for space-constrained boards where every millimetre counts.

Key specifications

• Input voltage: 4.5–5.5 VDC (nominal 5 VDC)
• Output voltage: 5 VDC
• Output current: 200 mA (max)
• Output power: 1 W
• Isolation voltage: 1000 VDC
• Efficiency: up to 70%
• Operating temperature: -40°C to +85°C
• Mounting: Surface mount (SMD)
• Protection: Continuous short-circuit protection with auto-recovery
• Ripple & noise: 100 mVp-p (max)
• Switching frequency: 100 kHz (typ.)
• MTBF: >3,500,000 hours
• Cooling: Free air convection
• Humidity: 20–90% RH non-condensing

Why choose it

The SBTN01N-05 stands out for its robust isolation and wide temperature range, ensuring reliable operation in harsh industrial environments. Its unregulated design keeps the circuit simple, while the built-in short-circuit protection prevents damage during fault conditions. The SMD package streamlines automated assembly, reducing production costs and time to market.

Ideal use cases

• Isolated power for RS-485/RS-232 transceivers
• Gate driver supplies for MOSFET/IGBT circuits
• Sensor isolation in industrial automation
• Portable battery-powered devices
• Distributed power architectures

Good to know

This module is unregulated, so the output voltage may vary slightly with load and input changes. For applications requiring tight regulation, consider adding an external linear regulator. The device is RoHS compliant and suitable for lead-free reflow soldering processes. Always refer to the manufacturer's datasheet for recommended PCB layout and thermal guidelines.