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Tag Archives: Mil-Std 901E AC DC Power Supply

HomeETA-USA  /  Mil-Std 901E AC DC Power Supply

MIL-STD AC/DC FANLESS POWER SUPPLIES-1000W, 2000W, & 2400W

Conduction-Cooled Mil-Std Compliant AC/DC Power Supply

ETA-USA’s CH-M series offers a reliable, rugged,  AC/DC power converter for uncomplicated installation and countless options to meet any mil-standard compliant application. 

Meets Mil-std 461G ground, airborne, and ship-board systems including Mil-std 1399 sec 300 for 50/60 Hz systems. Units can be built in as little as 5 weeks.

CADS and drawings available upon request, connector changes, non-standard voltages and finishes available upon request. Contact ETA-USA today! 

CH-M1000 Series- Military Grade Conduction Cooled AC/DC Power Supply

Link to CH-M1000 Datasheet
CH-M1000 series datasheet

 

Features

  • Input: 95~264 VAC in, 50/60/400 Hz (47~440Hz) operation.
  • Available voltages: 12, 24, 28, 48
  • In-rush current limited
  • Compact 7.5″ x 11″ footprint (excluding connectors)
  • Aluminum Enclosure with chromate finish for corrosion resistance and low resistance bonding, anodized finish available upon request
  • Conformal coated internal circuitry
  • Mounting: Two rows of five, 0.20″ diameter thru holes for secure mounting and thermal conductivity
  • >20 msec Hold Up time at full load, 115VAC input, >50 msec at 220 VACin.
  • DC  Output Regulation: Less than 10 mV voltage drift from 0 to full load (measured at output terminal)
  • Ripple and Noise: <1% peak-to peak
  • Constant Current OCP Protection
  • Operating Altitude: 15,000ft, 40,000ft at 8 kPa (55,000 ft max)
  • Weight: 5.5 lbs (Standard Unit)

Mil-Standard Compliances (Without External Circuitry)

  • EMI: Mil-Std 461, CE101, CE102, RE101, RE102, 
  • Susceptibility: CS101, CS114, CS115, Cs116
  • Input Transient Mil-Std 704F, Mil-std 1399 Sec 300 Part 1 
  • Surge protection: Mil-Std 1275
  • Power Factor: Mil-Std 1399 (meets Mil-Std 1399 Sec 300 for 50/60Hz power systems)
  • Environmental: Mil-Std 810H

Available Modifications

  • Non-standard Voltages from 5V~55 VDC (Contact ETA-USA Representative for Details)
  • Secondary isolated output voltages: 5, 12, 15, 24; 10W
  • Hard Anodized Enclosure with EMI Grounding
  • Mil-Std 901 Shock Compliant Enclosure (Product Dimensions Subject to Change)
  • IP66/IP67 Enclosure (Product Dimensions Subject to Change)
  • Customized Input and Output Connector
  • External Voltage Trim (10%, 20%)
  • Remote On/Off
  • Remote Sense
  • I2C Status Reporting (Output Voltage, Output Current, Internal Temperature)
  • Three Phase Wye or Delta Input (Contact ETA-USA Representative for Details)

CH-M2000 Series- Military Grade Conduction Cooled AC/DC Power Supply

CH-M2000 series Datasheet

 

Features

  • Input: 95~264 VAC in, 50/60/400 Hz (47~440Hz) operation
  • Available voltages: 12, 24, 28, 48
  • In-rush current limited
  • 8″ x 14″ footprint (excluding connectors)
  • Aluminum Enclosure with chromate finish for corrosion resistance and low resistance bonding, anodized finish available upon request
  • Conformal coated internal circuitry
  • Mounting: Two rows of five, 0.20″ diameter thru holes for secure mounting and thermal conductivity
  • >20 msec Hold Up time at full load, 115VAC input, >50 msec at 220 VACin.
  • DC  Output Regulation: Less than 10 mV voltage drift from 0 to full load (measured at output terminal)
  • Ripple and Noise: <1% peak-to peak
  • Constant Current OCP Protection
  • Operating Altitude: 15,000ft & 40,000ft at 8 kPa (55,000 ft max)
  • Weight: 9.5 lbs (Standard Unit)

Mil-Standard Compliances (Without External Circuitry)

  • EMI: Mil-Std 461, CE101, CE102, RE102, RE103
  • Susceptibility: CS114, CS115
  • Input Transient Mil-Std 704
  • Surge protection: Mil-Std 1275
  • Power Factor: Mil-Std 1399 sec 300A
  • Meets Mil Std-1399 Sec 300A Power Profile for 115V 60Hz systems & CVN class 78
  • Environmental/Shock/Vibration: Mil-Std 810

Available Modifications

  • Hard Anodized Enclosure with EMI Grounding
  • Mil-Std 901 Shock Compliant Enclosure (Product Dimensions Subject to Change)
  • IP66 or IP67 Enclosure
  • Customized Input and Output Connector
  • External Voltage Trim (10%, 20%)
  • Remote On/Off
  • I2C Status Reporting (Output Voltage, Output Current, Internal Temperature)
  • Three Phase Wye or Delta Input (Contact ETA-USA Representative for Details)

CH-M2400 Series- Dual Output Military Grade Conduction Cooled AC/DC Power Supply

CH-M2400 series Datasheet

 

Features

  • Input: 95~264 VAC in, 50/60/400 Hz (47~440Hz) operation
  • Two separate, isolated, floating output voltages
  • Available voltages: 12 (rated 1KW max), 24, 28, 48, 54
  • In-rush current limited
  • 8″ x 14″ footprint (excluding connectors)
  • Aluminum Enclosure with chromate finish for corrosion resistance and low resistance bonding, anodized finish available upon request
  • Conformal coated internal circuitry
  • Mounting: Two rows of five, 0.20″ diameter thru holes for secure mounting and thermal conductivity
  • >20 msec Hold Up time at full load, 115VAC input, >50 msec at 220 VACin.
  • DC  Output Regulation: Less than 10 mV voltage drift from 0 to full load (measured at output terminal)
  • Ripple and Noise: <1% peak-to peak
  • Constant Current OCP Protection
  • Operating Altitude: 15,000ft & 40,000ft at 8 kPa (55,000 ft max)
  • Weight: 9.5 lbs (Standard Unit)

Mil-Standard Compliances (Without External Circuitry)

  • EMI: Mil-Std 461, CE101, CE102, RE102, RE103
  • Susceptibility: CS114, CS115
  • Input Transient Mil-Std 704
  • Surge protection: Mil-Std 1275
  • Power Factor: Mil-Std 1399 sec 300A
  • Meets Mil Std-1399 Sec 300A Power Profile for 115V 60Hz systems & CVN class 78
  • Environmental/Shock/Vibration: Mil-Std 810

Available Modifications

  • Hard Anodized Enclosure with EMI Grounding
  • Mil-Std 901 Shock Compliant Enclosure (Product Dimensions Subject to Change)
  • IP66 or IP67 Enclosure
  • Customized Input and Output Connector
  • External Voltage Trims (10%, 20%)
  • Remote On/Off
  • I2C Status Reporting (Output Voltage, Output Current, Internal Temperature)

NEW MILITARY GRADE PRODUCT- COMPACT 1,100W Conduction Cooled AC/DC Power Supply

CH-M1100 Series- Compact Military Grade Conduction Cooled AC/DC Power Supply

Introducing an 1,100W AC/DC power supply with a smaller foot print that the CH-M1000, the CH-M1100 series of conduction cooled military grade AC/DC power supplies provide the single solution to power you Mil-standard Application. Customers may use the standard input & output connector or request their own. Designed for Mil-Std 461 Ground, Airborne, and Ship-board applications. Mil-std 1399 sec 300 Part 1 compliant for Type I, 115V 60Hz systems.  Units can be built in as little as 6 weeks.

Click Image for Datasheet 

Features

  • Input: 95~264 VAC in, 50/60/400 Hz (47~440Hz) operation.
  • Available voltages: 12, 24, 28, 48
  • In-rush current limited
  • Compact 7.00″ x 9.75″ footprint (excluding connectors)
  • Aluminum Enclosure with chromate finish for corrosion resistance and low resistance bonding
  • Conformal coated internal circuitry
  • Mounting: Two rows of five, 0.215″ diameter thru holes for secure mounting and thermal conductivity (fit no.10 or M5 bolts)
  • >20 msec Hold Up time at full load, 115VAC input, >50 msec at 220 VACin.
  • DC  Output Regulation: Less than 10 mV voltage drift from 0 to full load (measured at output terminal)
  • Ripple and Noise: <1% peak-to peak
  • Constant Current OCP Protection
  • Operating Altitude: 15,000ft, 40,000ft at 8 kPa (55,000 ft max)
  • Weight: 4.5 lbs (Standard Unit)

Mil-Standard Compliances (Without External Circuitry)

  • EMI: Mil-Std 461, CE101, CE102, RE102, 
  • Susceptibility: CS101, CS114, CS115, CS116
  • Input Transient Mil-Std 704F, Mil-std 1399 Sec 300 Part 1 
  • Surge protection: Mil-Std 1275
  • Power Factor: Mil-Std 1399 (meets Mil-Std 1399 Sec 300 for 50/60Hz power systems)
  • Environmental: Mil-Std 810H Shock, Vibration, and Temperature

Available Modifications

  • Non-standard Voltages from 9V~55 VDC (Contact ETA-USA Representative for Details)
  • Hard Anodized Enclosure with EMI Grounding
  • Mil-Std 901 Shock Compliant Enclosure (Product Dimensions Subject to Change)
  • Customized Input and Output Connector
  • External Voltage Trim (10%, 20%)
  • Remote On/Off
  • Remote Sense
  • Active load sharing

 

See our 500W AC-DC MIL-STD Power Supplies

CH-M500 Series Datasheet

See our 2000W AC-DC MIL-STD Power Supplies

CH-M2000 Series Datasheet

Contact ETA-USA for Product Availability and CAD Files. 

See Our Full Line of Military and Aviation Power Supplies 

ETA-USA is ready to work with the US government and DOW contractors, see our capability statement.

 

 

Understanding MIL-STD-461: Electromagnetic Compatibility Standards for Mission-Critical Electronics

Understanding MIL-STD-461: Electromagnetic Compatibility Standards for Mission-Critical Electronics

When it comes to designing electronics for military use—whether it’s in an aircraft, ship, ground vehicle, or satellite—failure is not an option. These systems must operate flawlessly in environments filled with electromagnetic interference (EMI), from radar systems to high-powered transmitters. That’s where MIL-STD-461 comes in.

In this blog, we’ll unpack what MIL-STD-461 is, who it applies to, what it tests for, and how manufacturers achieve compliance.

 What Is MIL-STD-461?

MIL-STD-461 is a U.S. Department of Defense (DoD) standard that defines the requirements and test methods for controlling electromagnetic interference (EMI) in military electronic equipment and subsystems.

Its purpose is to ensure that electronic systems:

  • Don’t emit harmful interference

  • Can resist incoming EMI from external sources

First issued in 1967, MIL-STD-461 has been updated several times, with the current version being MIL-STD-461G (released in 2015). It works hand-in-hand with MIL-STD-464, which sets system-level EMC requirements.

 Who Uses MIL-STD-461?

MIL-STD-461 applies to:

  • Defense contractors building military electronics

  • Aerospace OEMs (aircraft, spacecraft, missiles)

  • Naval and ground vehicle systems (ships, tanks, drones)

  • Subcontractors providing sensors, computers, power supplies, or RF systems

If your product is destined for a DoD platform or program, you’ll likely need to show proof of compliance with MIL-STD-461.

What Does MIL-STD-461 Test?

The standard is divided into test methods, each focused on either emissions or susceptibility across various frequency ranges.

Here’s a quick breakdown of the most common tests:

 Emissions – What Your System Puts Out

Test Code Description Frequency Range
CE101 Conducted emissions (power leads) 30 Hz – 10 kHz
CE102 Conducted emissions (power leads) 10 kHz – 10 MHz
RE101 Radiated emissions (magnetic field) 30 Hz – 100 kHz
RE102 Radiated emissions (electric field) 10 kHz – 18 GHz
RE103 Radiated emissions (transmitters) Transmitter-dependent

 Susceptibility – What Your System Must Withstand

Test Code Description Frequency Range
CS101 Conducted susceptibility (power leads) 30 Hz – 150 kHz
CS114 Bulk cable injection 10 kHz – 200 MHz
CS115 Impulse excitation (fast transients) Repetitive narrow pulses
CS116 Damped oscillatory transients 10 kHz – 100 MHz
RS101 Radiated susceptibility (magnetic) 30 Hz – 100 kHz
RS103 Radiated susceptibility (electric) 10 kHz – 18 GHz

How Is Compliance Achieved?

Meeting MIL-STD-461 is not just about passing tests—it’s about designing for EMC from day one. Here’s how manufacturers approach it:

1. Pre-Compliance Design

  • Use shielded enclosures to block RF noise

  • Implement power line filters and ferrites

  • Use twisted pair and shielded cables

  • Optimize PCB layout to reduce emissions and susceptibility

Using products designed to meet Mil-Std 461 EMC requirements will cut down on your pre-compliance time.

2. Testing in Accredited Labs

  • Equipment Under Test (EUT) is placed in a shielded chamber

  • Specialized equipment (spectrum analyzers, signal generators, antennas) simulate and measure EMI

  • Testing is done according to procedures outlined in MIL-STD-461G

 Passing means the system won’t interfere with others or be disrupted by nearby emissions—even in dense EMI environments like naval ships or aircraft carriers.

3. Documentation & Reporting

  • Create a Test Plan (TP) and Test Report (TR) that outline procedures, results, and any deviations

  • Submit to program offices, DoD, or certification bodies for review

 Typical Compliance Process

  1. Determine Applicability: Based on equipment type, platform (air/ground/sea), and power specs.

  2. Select Test Methods: From the MIL-STD-461 matrix.

  3. Design for EMC: Build to meet limits.

  4. Conduct Pre-Compliance Testing: In-house or with third-party labs.

  5. Perform Formal Testing: With accredited test lab.

  6. Document Results: Create reports for certification or government submission.

 What Happens If You Fail a Test?

Failure is common in early stages. Here’s how it’s handled:

  • Modify design (e.g., improve shielding, change cable routing)

  • Add filtering or grounding

  • Redesign power supplies or connectors

  • Retest affected section only

This iterative process improves product robustness and avoids costly fixes later in the program lifecycle.

 Why MIL-STD-461 Matters

Electromagnetic compatibility is essential to mission success. Without proper EMC, electronics could:

  • Jam nearby radios or sensors

  • Misbehave during operations (missile control, radar)

  • Become vulnerable to cyber or signal disruption

MIL-STD-461 ensures that your product won’t become the weakest link in the battlefield or the cockpit.

 ETA-USA’s Compliant Products

MIL-STD-461 is the backbone of electromagnetic compatibility in military systems. It’s not just a box to check—it’s a design mindset that ensures electronics can survive and operate in today’s complex and contested environments.

ETA-USA offers COTS/MOTS Mil-Std 461 compliant power supplies

AC/DC Conduction Cooled CH-M series:

CH-M500: 500W 

CH-M1000: 1000W

CH-M2000: 2000W

AC/DC low profile Mil-S-901 LPM Series

LPM500: 500W

LPM650: 650W with droop sharing

LPM1000: 1,000W 

DC/DC Mil-Std 1275 compliant Conduction Cooled MDC Series

MDC150: 150W

MDC300: 300W

MDC500: 500w

Whether you’re building mission-critical avionics, battlefield sensors, or tactical communications gear, understanding and applying MIL-STD-461 early in your project helps you avoid surprises, reduce costs, and earn the trust of defense customers. Let ETA-USA assist you in creating a MIL-STD compliant power supply.

MILITARY GRADE PRODUCT – 2,000W Conduction Cooled AC/DC Power Supply

CH-M2000 Series- Military Grade Conduction Cooled AC/DC Power Supply

ETA-USA line of conduction cooled military grade AC/DC power supplies provide the single solution to power your military & defense application. Customers may use the standard input & output connector or request their own. Meets Mil-std 461G ground, airborne, and ship-board systems including Mil-std 1399 sec 300 for 50/60 Hz systems. Units can be built in as little as 5 weeks.

CH-M2000 series Datasheet

Features

  • Input: 95~264 VAC in, 50/60/400 Hz (47~440Hz) operation
  • Available voltages: 12, 24, 28, 48
  • In-rush current limited
  • 8″ x 14″ footprint (excluding connectors)
  • Aluminum Enclosure with chromate finish for corrosion resistance and low resistance bonding
  • Conformal coated internal circuitry
  • Mounting: Two rows of five, 0.20″ diameter thru holes for secure mounting and thermal conductivity
  • >20 msec Hold Up time at full load, 115VAC input, >50 msec at 220 VACin.
  • DC  Output Regulation: Less than 10 mV voltage drift from 0 to full load (measured at output terminal)
  • Ripple and Noise: <1% peak-to peak
  • Constant Current OCP Protection
  • Operating Altitude: 15,000ft & 40,000ft at 8 kPa (55,000 ft max)
  • Weight: 9.5 lbs (Standard Unit)

Mil-Standard Compliances (Without External Circuitry)

  • EMI: Mil-Std 461, CE101, CE102, RE102, RE103
  • Susceptibility: CS114, CS115
  • Input Transient Mil-Std 704
  • Surge protection: Mil-Std 1275
  • Power Factor: Mil-Std 1399 sec 300A
  • Meets Mil Std-1399 Sec 300A Power Profile for 115V 60Hz systems & CVN class 78
  • Environmental/Shock/Vibration: Mil-Std 810

Available Modifications

  • Hard Anodized Enclosure with EMI Grounding
  • Mil-Std 901 Shock Compliant Enclosure (Product Dimensions Subject to Change)
  • IP66 or IP67 Enclosure
  • Customized Input and Output Connector
  • External Voltage Trim (10%, 20%)
  • Remote On/Off
  • I2C Status Reporting (Output Voltage, Output Current, Internal Temperature)
  • Three Phase Wye or Delta Input (Contact ETA-USA Representative for Details)

See our 500W AC-DC MIL-STD Power Supplies

CH-M500 Series Datasheet

See our 1000W AC-DC MIL-STD Power Supplies

CH-M1000 Series Datasheet

 

Contact ETA-USA for Product Availability and CAD Files. 

See Our Full Line of Military and Aviation Power Supplies 

Government Customers- See Our Capability Statement

 

 

MILITARY GRADE PRODUCT – 1,000W Conduction Cooled AC/DC Power Supply

CH-M1000 Series- Military Grade Conduction Cooled AC/DC Power Supply

ETA-USA line of conduction cooled military grade AC/DC power supplies provide the single solution to power you Mil-standard Application. Customers may use the standard input & output connector or request their own. Designed for Mil-Std 461 Ground, Airborne, and Ship-board applications. Mil-std 1399 sec 300 Part 1 compliant for Type I, 115V 60Hz systems.  Units can be built in as little as 5 weeks.

Link to CH-M1000 Datasheet
CH-M1000 series datasheet

 

Features

  • Input: 95~264 VAC in, 50/60/400 Hz (47~440Hz) operation.
  • Available voltages: 12, 24, 28, 48
  • In-rush current limited
  • Compact 7.5″ x 11″ footprint (excluding connectors)
  • Aluminum Enclosure with chromate finish for corrosion resistance and low resistance bonding
  • Conformal coated internal circuitry
  • Mounting: Two rows of five, 0.20″ diameter thru holes for secure mounting and thermal conductivity
  • >20 msec Hold Up time at full load, 115VAC input, >50 msec at 220 VACin.
  • DC  Output Regulation: Less than 10 mV voltage drift from 0 to full load (measured at output terminal)
  • Ripple and Noise: <1% peak-to peak
  • Constant Current OCP Protection
  • Operating Altitude: 15,000ft, 40,000ft at 8 kPa (55,000 ft max)
  • Weight: 5.5 lbs (Standard Unit)

Mil-Standard Compliances (Without External Circuitry)

  • EMI: Mil-Std 461, CE101, CE102, RE101, RE102, 
  • Susceptibility: CS101, CS114, CS115, Cs116
  • Input Transient Mil-Std 704F, Mil-std 1399 Sec 300 Part 1 
  • Surge protection: Mil-Std 1275
  • Power Factor: Mil-Std 1399 (meets Mil-Std 1399 Sec 300 for 50/60Hz power systems)
  • Environmental: Mil-Std 810H

Available Modifications

  • Non-standard Voltages from 5V~55 VDC (Contact ETA-USA Representative for Details)
  • Secondary isolated output voltages: 5, 12, 15, 24; 10W
  • Hard Anodized Enclosure with EMI Grounding
  • Mil-Std 901 Shock Compliant Enclosure (Product Dimensions Subject to Change)
  • IP66/IP67 Enclosure (Product Dimensions Subject to Change)
  • Customized Input and Output Connector
  • External Voltage Trim (10%, 20%)
  • Remote On/Off
  • Remote Sense
  • I2C Status Reporting (Output Voltage, Output Current, Internal Temperature)
  • Three Phase Wye or Delta Input (Contact ETA-USA Representative for Details)

NEW RELEASE CH-M1100 SERIES–20% Reduction in size with 10% more power than the CH-M1000

CH-M1100 Series Datasheet 

See our 500W AC-DC MIL-STD Power Supplies

CH-M500 Series Datasheet

See our 2000W AC-DC MIL-STD Power Supplies

CH-M2000 Series Datasheet

Contact ETA-USA for Product Availability and CAD Files. 

See Our Full Line of Military and Aviation Power Supplies 

 

 

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