The TDK/Kepco MRW160KV is a low-profile switching power supply board delivering 50 W of regulated DC power across triple outputs with integrated power sharing. Housed in a compact 1.3-inch PC card format, it accepts wide-range AC input (95–264 V AC, 50–60 Hz) without jumpers or user configuration and supplies +5 V DC, +12 V DC, and −12 V DC rails simultaneously. The design incorporates overvoltage protection on the +5 V output, TTL-compatible power-OK signaling, built-in EMI filtering to FCC Class B and VDE 0871 Class B standards, and 30 ms minimum hold-up time. Typical efficiency reaches 72%, with output voltage regulation held within ±5% combined effect across source, load, and temperature variations. Ripple and noise remain below 50 mV peak-to-peak on primary rails. UL recognized and certified to VDE 0806, IEC 380, CSA C22.2 No. 1402, and EN 60950 (TÜV Rheinland), the MRW160KV operates reliably to 50°C ambient at full rated power and withstands vibration to 3 g across all three axes.
Technical Specifications
Input Characteristics
• Voltage: 95–264 V AC (auto-sensing)
• Frequency: 50–60 Hz
• Input Current: 1.3 A
Output Characteristics
• Output #1: +5 V DC, 1.0–5.0 A typical, 6.0 A maximum
• Output #2: +12 V DC, 0.6–2.0 A typical, 2.5 A maximum
• Output #3: −12 V DC, 0–0.1 A typical, 0.5 A maximum
• Total Power: 50 W at ≤50°C ambient
Electrical Performance
• Efficiency: 72% typical
• Regulation (combined effect): ±5%
• Output Ripple & Noise: 30–50 mV p-p maximum
• Overvoltage Protection: 5.8–6.9 V threshold on +5 V rail
• Hold-up Time: 30 ms typical, 20 ms minimum
– Key Features
• Triple regulated outputs with automatic power sharing
• TTL-compatible power-OK logic signal when +5 V exceeds 4.5 V
• Built-in EMI filtering meets FCC Class B and VDE 0871 Class B (10 kHz–30 MHz)
• ±5% output regulation across source, load, and temperature
• Self-contained, low-profile PC card design
• Optional cover: Model CA-20
– Typical Applications
Industrial control systems, laboratory test equipment, embedded systems, and instrumentation requiring regulated multi-rail DC power with overvoltage fault protection and minimal height constraints.
– Compatibility & Integration
UL Recognized; certified to VDE 0806, IEC (DIN) 380, CSA C22.2 No. 1402, and EN 60950 (TÜV Rheinland). Operating temperature range to 50°C ambient; vibration rated to 2 g at 10–55 Hz and 3 g (1 hour, 3 axes).
