Why should I choose a linear power supply over a switching power supply?

Linear power supplies provide ultra-low output noise, extremely fast transient recovery, and zero high-frequency electromagnetic interference (EMI). They are ideal for noise-sensitive applications like audio electronics, RF amplifiers, medical sensors, laboratory instrumentation, and military equipment.

How fast can Acopian ship linear power supplies?

Most standard Acopian linear power supply models are custom manufactured and shipped within 3 business days of receiving the purchase order. Larger rack-mount systems typically ship within 9 business days.

Are Acopian linear power supplies certified and TAA compliant?

Yes. Acopian power supplies are designed and manufactured at our USA facilities under an ISO 9001:2015 certified quality management system. Most models carry UL, CE, and RoHS certifications and are fully TAA compliant for international government and defense procurement.

Are international input voltages supported?

Yes. Standard models support 105-125 VAC inputs, and optional 210-250 VAC (230 VAC), 208 VAC, or 100 VAC inputs can be specified for international power grids.

Ultra-Low Noise · Made in USA · 5-Year Warranty

Linear Power Supplies

High-precision AC-DC linear regulated power supplies engineered for mission-critical applications. Built to order and shipped within 3 days.

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Engineering Excellence Since 1957

Precision Linear Regulated Power Supplies for Noise-Sensitive Applications

When high-frequency noise, electromagnetic interference (EMI), or voltage instability cannot be tolerated, Acopian linear regulated power supplies provide the cleanest DC output available. Designed and manufactured in Easton, Pennsylvania, USA, our linear power modules deliver exceptional line and load regulation with ripple levels as low as sub-millivolt RMS.

Acopian linear power supplies are the premier choice for global B2B procurement managers and design engineers in aerospace, audio engineering, medical diagnostic systems, RF communications, laboratory testing, and defense programs worldwide.

Ultra-low ripple (<1 mV RMS typical) & zero high-frequency switching noise
Single, Dual Tracking, Dual Isolated, Triple Isolated & Wide-Adjust topologies
PCB mount, screw terminal, plug-in, Gold Box, rack mount & benchtop packages
100% full-load burn-in tested, serialized, and backed by an industry-leading 5-year warranty

Key Technical Capabilities

Power Output: Micro-power to 1,200 Watts
Output Voltage Range: 1.0 Vdc up to 200 Vdc
Output Current Range: 20 mA up to 150 Amperes
AC Input Compatibility: 105–125 Vac (Standard), 210–250 Vac (230V International option), 50/60 Hz
Certifications: UL Recognized, UL Listed, CE Mark, RoHS Compliant, TAA Compliant
Quality Assurance: ISO 9001:2015 Certified System

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Comprehensive Product Line

Linear Power Supply Models by Configuration

Browse our extensive selection of standard linear power supply packages categorized by output configuration and mounting style. Standard models ship within 3 to 9 business days.

1. Single Output Linear Power Supplies

Mini-PCB Mounting

Compact Linear Power Supply

Power: Up to 15 Watts
Input: 105–125 Vac (Optional 210–250 Vac)
Output Voltage: 1 Vdc to 185 Vdc
Output Current: 25 mA to 2.5 A

UL / CE / RoHS

Shipped in 3 Days Send an Inquiry

Mini-Touch Safe Terminals

Industrial Safety Package

Power: Up to 15 Watts
Input: 105–125 Vac (Options: 230V, 208V, 100V, 24V)
Output Voltage: 3.3 Vdc to 48 Vdc
Output Current: 80 mA to 2.5 A

UL Listed / CE / RoHS

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Mini-Screw Terminals

Chassis Mount Modules

Power: Up to 15 Watts
Input: 105–125 Vac (Optional 210–250 Vac)
Output Voltage: 1 Vdc to 185 Vdc
Output Current: 25 mA to 2.5 A

UL Recognized / CE / RoHS

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Narrow Profile

Space-Saving Enclosure

Power: Up to 39 Watts
Input: 105–125 Vac (Optional 210–250 Vac)
Output Voltage: 1 Vdc to 150 Vdc
Output Current: 50 mA to 3.5 A

UL Recognized / RoHS

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Plug-in Octal Socket

Rapid Maintenance Format

Power: Up to 60 Watts
Input: 105–125 Vac (Optional 210–250 Vac)
Output Voltage: 1 Vdc to 200 Vdc
Output Current: 50 mA to 5.0 A

UL Recognized Component

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Gold Box Series

Heavy-Duty Metal Enclosed

Power: Up to 450 Watts
Input: 105–125 Vac (Optional 210–250 Vac)
Output Voltage: 1.5 Vdc to 200 Vdc
Output Current: 100 mA to 32 A

UL / CE / RoHS Compliant

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Rack Mount Assemblies

19-Inch Rack Form Factor

Power: Up to 784 Watts
Input: 105–125 Vac (Optional 210–250 Vac)
Output Voltage: 1.5 Vdc to 150 Vdc
Output Current: 2.3 A to 60 A

UL Recognized / Heavy Duty

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Infinity Rack & Benchtop

High-Power Linear Systems

Power: Up to 1,200 Watts
Input: 105–125 Vac (Optional 210–250 Vac)
Output Voltage: 3.3 Vdc to 150 Vdc
Output Current: 2 A to 150 A

High Power / Precision Control

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Redundant Power Systems

N+1 Fault-Tolerant Linear

Configurations: Rack Mount, Wall Mount, Modular
Features: Seamless failover, hot-swappable options
Application: Critical communications & servers
Reliability: Continuous uninterrupted power

Fault Tolerant / N+1

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2. Dual Tracking Output Linear Power Supplies

Mini-PCB Dual Tracking

Symmetrical ±DC Output

Power: Up to 15 Watts
Input: 105–125 Vac (Optional 210–250 Vac)
Output Voltage: ±5 Vdc to ±15 Vdc
Output Current: 25 mA to 500 mA

UL / CE / RoHS

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Dual Tracking Screw Terminal Power Supply

Mini-Screw Dual Tracking

Chassis Mount Op-Amp Supply

Power: Up to 15 Watts
Input: 105–125 Vac (Optional 210–250 Vac)
Output Voltage: ±5 Vdc to ±15 Vdc
Output Current: 100 mA to 500 mA

UL / CE / RoHS

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Gold Box Dual Tracking

High-Current Symmetrical Power

Power: Up to 255 Watts
Input: 105–125 Vac (Optional 210–250 Vac)
Output Voltage: ±5 Vdc to ±15 Vdc
Output Current: 400 mA to 8.5 A

UL / CE / RoHS

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3. Dual & Triple Isolated Output Linear Power Supplies

Dual Isolated Plug-in

User-Selectable Output

Power: Up to 36 Watts
Input: 105–125 Vac (Optional 210–250 Vac)
Output Voltage: 3.3 Vdc to 150 Vdc
Output Current: 50 mA to 2.0 A

UL Recognized

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Dual Isolated Gold Box Combo Power Supply

Gold Box Dual Isolated

5V / 12V Logic Combos

Power: Up to 58.8 Watts
Input: 105–125 Vac (Optional 210–250 Vac)
Output Voltage: 5 Vdc to 12 Vdc
Output Current: 600 mA to 6.0 A

UL / CE / RoHS

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Gold Box Triple Output

5V / 9V / 12V / 15V Combos

Power: Up to 175 Watts
Input: 105–125 Vac (Optional 210–250 Vac)
Output Voltage: 5 Vdc to 15 Vdc
Output Current: 250 mA to 20 A

UL 60950 / CE / RoHS

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4. Wide Adjust Output Linear Power Supplies

Narrow Profile Wide-Adjust

Full Range Adjustable Voltage

Power: Up to 19.2 Watts
Input: 105–125 Vac (Optional 210–250 Vac)
Output Voltage: 0–7 Vdc to 0–150 Vdc
Output Current: 50 mA to 2.1 A

UL Listed / RoHS

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Gold Box Programmable

Voltage & Current Control

Power: Up to 150 Watts
Input: 105–125 Vac (Optional 210–250 Vac)
Output Voltage: 0–6 Vdc to 0–100 Vdc
Output Current: 100 mA to 16 A

RoHS Compliant

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Rack Mount Wide-Adjust

System-Grade Adjustable Supply

Power: Up to 270 Watts
Input: 105–125 Vac (Optional 210–250 Vac)
Output Voltage: 0–6 Vdc to 0–100 Vdc
Output Current: 1.2 A to 30 A

UL Recognized

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Engineering Insight

Why Specify Linear Power Supplies over Switching Topologies?

While switching regulated power supplies offer high power density, linear regulated power supplies remain indispensable for sensitive electronic hardware due to their unique physical operation.

Ultra-Low Output Noise

Linear supplies utilize continuous dissipation regulation, delivering clean DC power with ripple values under 1 mV RMS, preventing spurious noise in high-resolution circuitry.

Zero High-Frequency EMI

Because linear power supplies operate without high-frequency switching transistors, they produce zero radiated or conducted EMI, simplifying FCC/CE compliance testing.

Instantaneous Transient Recovery

Linear circuits respond rapidly to abrupt load changes without significant voltage sag or overshoot, protecting delicate microprocessors, sensors, and IC chips.

Extreme Line & Load Regulation

Acopian linear supplies achieve tight regulation tolerances (typically ±0.005% line, ±0.02% load), maintaining stable voltages regardless of line fluctuation.

High Isolation & Safety

Heavy copper line transformers provide complete galvanic isolation between input mains and output circuitry, safeguarding sensitive ground lines.

Decades of USA Proven Reliability

Built with high-grade components and robust thermal management, Acopian linear supplies regularly deliver 20+ years of continuous service in severe environments.

Purchasing Guidance

Linear Power Supplies FAQ

Answers to common questions from international engineering leads, OEM system designers, and procurement managers.

Acopian linear power supplies provide continuous, linear regulation without high-frequency switching transistors. This results in sub-millivolt RMS ripple voltage and zero radiated switching EMI, making them essential for audio mixing consoles, medical diagnostics, scientific sensors, and military radar equipment.

Most standard Acopian linear power modules are custom assembled, 100% burn-in tested, and shipped within 3 business days of order confirmation. Multi-output rack assemblies and complex systems typically ship within 9 business days.

Yes. While standard models come wired for 105–125 VAC (115V), almost all Acopian linear power supplies can be ordered with input options for 210–250 VAC (230V), 208 VAC, or 100 VAC 50/60 Hz line power for global deployment.

Yes. If our standard catalog models do not fit your exact footprint or electrical requirement, Acopian engineers custom single, dual, triple, and quadruple output linear power supplies tailored to your engineering drawing.

Need Precision Linear Power for Your Project?

Speak directly with an Acopian application engineer to specify your output voltage, load requirements, input power options, or custom rack mounting needs.

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