AC/DC Step Down Transformer Ultra-thin Power Supply Module 12V 450mA 5.4W
The ST12V0.45A5W is a compact AC/DC Step Down Transformer Ultra-thin Power Supply Module 12V 450mA 5.4W. Its ultra-wide input range supports AC from 70 to 270 VAC and DC from 100 to 380 VDC, making it ideal for flexible deployment in diverse mains environments. This module includes built-in protections (over‑current, over‑temperature, short‑circuit) and EMI filtering, and features ultra-thin through-hole PCB mounting with high-voltage isolation and compact size.
Features
- Provides a consistent 12V DC supply for sensitive electronic components.
- Designed to minimize power loss and heat generation.
- Easily integrates into space-constrained applications.
- Wide Input Voltage Range.
- Ultra-thin, compact footprint for PCB embedding.
- Delivers a stable 450mA output current.
- Compact, lightweight, and easy to integrate into electronic circuits.
- Built-in protection for overload, overvoltage, and short circuits.
- Durable and reliable design with high-quality electronic components.
- Isolated Switching Power Supply.
- Low ripple and low noise..
- High efficiency, high power density.
- Low power consumption, environmental protection, no-load loss <0.1W.
Specifications
| Parameter | Value |
|---|---|
| Manufacturer Part No. | ST12V0.45A5W |
| Input Voltage (AC) | 70–270 VAC, 50/60 Hz |
| Input Voltage (DC) | 100–380 VDC |
| Output Voltage | 12 V DC ±0.2 V |
| Output Current | Up to 450 mA |
| Rated Power | 5.4W |
| Efficiency | 73–80 % |
| Protections | Over-current, over-temperature, short-circuit |
| EMI Filtering | Yes |
| Operating Temperature | –20 °C to +60 °C |
| Isolation (Input/Output) | High-voltage isolation (typically ≥3 kV) |
| Mounting | PCB mount module with optional holes |
| Dimensions (approx.) | 31.5mm × 20mm × 9.4mm |
Footprint
Applications
- Power supply for IoT devices and embedded systems.
- DIY electronics and prototyping projects.
- Microcontroller-based applications (Arduino, Raspberry Pi, ESP8266, etc.)
- Industrial automation and control systems.
- Smart home automation projects.
- LED lighting systems and display modules.
- USB power supply for small electronic gadgets.
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