Bel Fuse / Power-One MAP40-3003 AC-DC Power Supply

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.