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PC/104-Plus & PCI/104-Express 100W / 50W Isolated DC/DC MIL-STD-1275/704 Power Supplies

The PWR-21-11 and PWR-22-11 boards are rugged MIL-STD-1275/704 compliant DC/DC converter cards in stackable embedded PC/104-Plus (PWR-21-11) and PCI/104-Express (PWR-22-11) form factors designed for demanding power conditions experienced by embedded computing devices used onboard military ground vehicles (MIL-STD-1275D) and aircraft (MIL-STD-704F) installations.

These galvanically isolated supplies provide 100 watts of combined power output (+3.3V, +5V, +12V) and come equipped with MIL-STD-461 EMI filtering and transient protections specifically designed for demanding 250V spike and 100V surge requirements under MIL-STD-1275. These boards provide power over stackable buses (PCI and ISA buses for PWR-21-11, PCI and PCI-Express buses for PWR-22-11) as well as auxiliary power output connectors for non-PC/104 systems. They support an 18-36V DC input range for 24/28VDC applications, and typically eliminate the need for additional in-line power conditioning/EMI filtering devices in military embedded systems.

Featuring a rugged mechanical design, these small form factor (3.550" x 3.775") cards are designed to be used as the bottom module in a PC/104, PC/104-Plus, PCI-104, PCIe104, or PCI/104-Express embedded system stack, operate without any active cooling over extended temperature ranges (-40 to +85C per MIL-STD-810G), and provide resistance to high levels of shock and vibration (per MIL-STD-810G fixed wing jet, rotary aircraft, and tracked ground vehicle conditions). They are passively cooled by attaching the bottom of the card to a thermally conductive base or enclosure wall with electrically-isolated gap pad to dissipate heat.

A tribute to their robustness and versatility, the PWR-21-11 and PWR-22-11 power supplies are integrated into various MIL-STD-810/1275/704/461 qualified Parvus DuraCOR mission computersDuraNET Ethernet switches, and DuraMAR mobile IP router subsystems. These small form factor supplies are compatible with Cisco Systems’ PCI-104 5915 Series Embedded Services Router (ESR) card as well as a host of embedded Single Board Computers modules on the market.

Applications24 / 28V DC-DC Conversion for PC/104, PC/104-Plus, PCI-104, PCIe104, PCI/104-Express and Other Small Form Factor Embedded Systems
Compliance with MIL-STD-1275, MIL-STD-704, MIL-STD-461 Surges, Spikes, Conducted Emissions in Aerospace / Avionics / Military / Ground Vehicles
Form FactorPWR-21-11: PC/104-Plus (ISA + PCI)
PWR-22-11: PCI/104-Express (PCI + PCIe)
ComplianceDesigned to Meet MIL-STD-810G (Environmental), MIL-STD-1275D and MIL-STD-704F (Voltage Input, Surges, Spikes, Transients), MIL-STD-461F (Conducted Emissions & Susceptibility)
Voltage InputNominal 28.0 V DC (+18V to +36VDC with Support for 250V Spike and 100V Surge per MIL-STD-1275, as well as 1500V DC Galvanic Isolation)
Voltage OutputUp to 100 Watts: +5V @ 10A (50W Max), +3.3V @ 15A (50W Max), +12 V @ 1.5A (18W Max – 12V derived from 3.3V rail)
Optional 50 Watt 5V Only Configuration: +5V @ 10A (50W Max)
Remote ShutoffRemote Power on/off Shutdown Support

Ordering Information

Part NumbersDescription
PWR-21-11-01100W PC104+ MIL-1275/704 DC/DC Power Supply, Vout=+3.3V, 5V, 12V
PWR-21-11-0250W PC104+ MIL-1275/704 DC/DC Power Supply, Vout=+5V only
PWR-21-11-0350W MIL-1275/704 DC/DC Power Supply, Vout=+5V only, no bus connectors
PWR-21-11-04100W MIL-1275/704 DC/DC Power Supply, Vout=+3.3V, 5V, 12V, no bus connectors
PWR-22-11-01100W PCI/104-Express MIL-1275/704 DC/DC Power Supply, Vout=+3.3V, 5V, 12V
PWR-22-11-0250W PCI/104-Express MIL-1275/704 DC/DC Power Supply, Vout=+5V
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