40W Regulated Output Open Frame Chassis Mount AC-DC Switching Power Supply

AQF40 Series

40W AC to DC Industrial and ITE Switching Power Supply- Ultra-Compact Power Solution for Cost-Efficient Performance

The AQF40 is ARCH's latest economy-class, low-wattage AC-DC switching power supply, built for applications where space and cost efficiency matter. With a compact form factor of 3.0 x 1.5 x 0.87 inches, the power supply is notably smaller than standard 3 x 2-inch modules from other leading brands—making it ideal for dense PCB layouts and compact enclosures.

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Reliable Power for Industrial Environments

Engineered with a universal 90–264VAC input, a wide operating temperature range of –40°C to +80°C, and up to 90% efficiency, the AQF40 switching power supply delivers reliable performance in industrial, ITE, and commercial systems, even in demanding environments.

Ultra-Low No-Load Power Consumption

With a no-load power draw under 0.1W, the AQF40 switching power supply achieves significantly lower standby energy consumption than many competitors, helping reduce overall power usage and meet energy-saving requirements in modern systems.

Optimized for Space-Constrained Applications

Tailored for applications such as terminal equipment, compact controllers, and embedded systems, the AQF40 switching power supply’s small footprint and low-profile design ensure easy integration and reduced system costs in size-sensitive projects.

Certified Safety & Simplified EMC Compliance

The AQF40 switching power supply is certified to UL / IEC / EN 62368-1 and includes a 3000VAC isolation barrier for user and system safety. It also complies with EMC regulations without the need for external filters, streamlining the design process and reducing BOM complexity.

Key Features

Open Frame Package.
Universal Input Range 90 - 264VAC.
High Efficiency up to 90%.
Low No-Load Power Consumption < 0.1W.
Wide Operating Temperature: -40°C ~ +80°C with derating
I/O Isolation: 3000VAC
Safety Approval to UL / IEC / EN 62368-1.
3-Year Product Warranty.

Applications

Industrial Automation Systems
Automotive Electronic Equipment
Communication Equipment
Mechanical Equipment
Instruments and Meters
Information Technology Equipment
Handheld Electronic Device

Specification

Output Power (Watt)	40
Dimensions (L x W x H) (Tolerance ± 0.5 mm)	76.2 x 38.1 x 22.0 mm 3.0 x 1.5 x 0.87 inches
Cooling Method	Free Air Convection
AC Input Voltage Range	90-264 VAC or 120-370 VDC
AC Inrush Current	< 50 A max. (115 VAC) / < 100 A max. (230 VAC)
Leakage Current	< 0.25 mA max. (100-240 VAC)
Output Voltage Accuracy	± 2%
Ripple and Noise (Vp-p.)	1% Vout (max.)
Over Power Protection	Auto recovery
Over Voltage Protection	Zener diode clamp
Short Circuit Protection	Hiccup Mode (Automatic Recovery)
Isolation Input-Output (V.AC)	3000 VAC or 4242 VDC
Operating Temperature	-40°C to +80°C
Temperature Coefficient	± 0.05%/°C
Safety Approval	UL / IEC / EN 62368-1
EMI	EN 55032 Class B
EMS	EN 55035