The Bel Fuse/Power-One MAP40-3003 is a 40 W AC-DC open-frame switching power supply engineered for commercial and industrial applications requiring multi-rail output capability. This three-output converter accepts universal input from 90–264 VAC at 47–63 Hz and delivers regulated +5 VDC, +15 VDC, and −15 VDC rails simultaneously from a compact 127.0 × 76.2 × 31.8 mm chassis-mount package. The unit achieves 70% efficiency with exceptional line regulation of ±0.2% typical and output ripple limited to 1% peak-to-peak across a 20 MHz bandwidth.
## Technical Specifications
• **Output Configuration:** Three independent rails—5 VDC @ 3 A, +15 VDC @ 1.5 A, −15 VDC @ 0.2 A
• **Input Specifications:** 90–264 VAC, 47–63 Hz, 1.2 A RMS @ 90 VAC
• **Voltage Regulation:** ±0.2% line regulation; ±1% initial setting accuracy; temperature coefficient ±0.02%/°C
• **Isolation Voltage:** 2.6 kV
• **Output Voltage Adjustment:** +5V (4.7–5.8V range), +15V (11–18V range)
• **Efficiency:** 70% typical
• **MTBF:** Greater than 311,000 hours
• **Operating Temperature:** 0–70°C with derating; convection cooling standard to 50°C ambient
## Key Features
• Universal 90–264 VAC input eliminates regional power supply variants
• Open-frame design facilitates direct board integration
• Industry-standard 3 × 5 inch footprint
• Single-row Molex connectors for input and output
• Remote sense capability for enhanced load regulation on specified rails
• Fixed-frequency switching topology
## Compliance & Certifications
• UL Listed, CSA Certified, TUV Approved
• EN60950-1 / IEC60950-1 safety compliance
• EN55022 conducted and radiated EMI limits
• EN61000-4-2/-3/-4 transient and ESD immunity
• RoHS3 compliant
• CE marked
## Typical Applications
Industrial control systems, telecommunications equipment, medical instrumentation, and embedded systems requiring multi-voltage rails from a single compact power source.
