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RFS50A Superior Ultra Low Noise AC/DC Switching Power Supply

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For applications requiring smaller, faster, and lower noise power supplies, Daitron's RFS Series Ultra-Low Noise Switching Power Supply (1mV@50W) is the perfect solution. Our ultra-low-noise AC/DC power supply is a technologically advanced, low-power unit designed for engineers who need superior low-noise power for noise-sensitive environments. Ideal for replacing linear power supplies, these units offer a compact and lightweight design, along with high efficiency and minimal system EMI design requirements.

UL62368-1 (AV, IT, Communication): #E237238

RFS Series Specifications

Ripple Noise: 1mVp-p

RFS50A Low Noise Power Supply Overview

Designed in-house by Daitron, the RFS50A Ultra-Low Noise AC/DC Switching Power Supply is designed for superior reliability and performance. Using a complex resonant converter, this series achieves outstanding noise reduction, delivering clean and stable DC power for sensitive electronic systems. It is compact, reliable, and widely used in medical and biotechnology applications.

Key Specifications for the RFS50A Low Noise Power Supply

Item	Spec
Model	RFS50A
Type	AC/DC switching, ultra low noise
Input Voltage	85–264 VAC (universal)
Input Frequency	47–63 Hz
Input Current (100/240 VAC)	1.2 A / 0.7 A (typ, full load)
Efficiency	83% (typ)
Inrush Current	20 A max at 100 VAC, 40 A max at 200 VAC (cold start)
Leakage Current	0.25 mA max at 240 VAC
Output Power	50 W max
Available Output Voltages	5 V / 12 V / 15 V / 24 V / 28 V / 48 V
Max Output Current (by model)	5 V: 10.0 A 12 V: 4.2 A 15 V: 3.4 A 24 V: 2.1 A 28 V: 1.8 A 48 V: 1.1 A
Ripple and Noise	1 mVp-p typ, 3 mVp-p max
Load Regulation	0.2% typ, 0.5% max
Line Regulation	0.05% typ, 0.1% max
Hold-Up Time	20 ms typ at 100 VAC, full load
Protection	Overcurrent: auto recovery Overvoltage: latch, input reset to recover
Operating Temperature	−10°C to +70°C (derate above +50°C)
Storage Temperature	−25°C to +85°C
Operating Humidity	20%–85% RH, non-condensing
Cooling	Convection
Safety Approvals	UL62368-1(file #E237238), EN62368-1
EMC	EN 55011/EN 55032 Class B (conducted and radiated)
Dimensions (W × H × D)	82 × 38 × 144.5 mm
Weight	0.48 kg
Input/Output Connections	Barrier terminal blocks
Mounting	Chassis mount

Primary Features

Superior Ultra Low Ripple and Noise
Significant Reduction of Common Mode Noise
Low Conducted Emission, Low Radiated Emission
Low Leakage Current (0.15mA/at 264Vac)
Safety Standard: 62368-1
Primary-Secondary Dielectric Strength 4kVac (1min)

Common Industrial Applications

Hyperfine measurement equipment
Precision testing and instrumentation
Medical imaging and diagnostic systems
Biotechnology research and development

Daitron is Your Best Source for Ultra Low Noise Power Supplies

Daitron Incorporated is a premier manufacturer and distributor for low noise power supply solutions. Request a quote below to start an order, or contact us for more information about which low-noise power supply is best for your application.

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