Aitech E104

Compact and Lightweight with 5 Standard VME64x Slots

Manufacturer: Aitech
Aitech E104

The Aitech E104 cold plate conduction-cooled VME computer enclosure is built to be rugged and reliable as well as lightweight and compact. EMI/RFI protected and environmentally sealed, the E104 is capable of withstanding extreme environmental conditions of high altitude, temperature, humidity, shock, vibration, EMI and chemical exposure. This makes it ideal for use in all military and aerospace environments.


The E104 is constructed of durable CNC machined 6061-T6 aluminium. Fasteners are stainless steel and often-used threads have self-locking stainless steel helicoils to withstand severe vibration and shock. All connectors are
located on the front panel of the enclosure for easy access. Side and back walls are equipped with heat conducting mounting bars to the bottom side of the enclosure for cold-plate direct mounting. The E104 is also equipped with a built-in handle for carrying purposes. 


The E104 accommodates 5 standard VME boards with 0.8-inch pitch, including:

  • IEEE 1101.2 conduction-cooled VME cards
  • Commercial VME boards without front panels


The backplane is VME64x compliant with 160- pin, 5-row J1/J2 connectors and 95-pin PO connectors in all slots. Any of the pins in rows A and C, and user-defined pins in rows Z and D of the J2 connectors, as well as the 95 I/O pins from each of the P0 connectors (up to a maximum of 512),


GeneralRugged Chassis for Mobile Military/Aerospace Applications
Designed for Harsh Mechanical, Climatic, Chemical and Electrical Stresses
Environmentally Sealed
Compact and Lightweight with 5 Standard VME Slots
Internally Conduction-Cooled; Externally Cold Plate Cooled
Fully Sealed Faraday Cage and Complete EMI/RFI Power Line Filtering
Customized Front Panel
Multi-Output Removable Power Supply
CapacityThe E104 accommodates 5 standard VME boards with 0.8 inch pitch, including:
• IEEE 1101.2 conduction-cooled VME cards
• Commercial VME boards without front panels
BackplaneThe backplane is VME64x compliant with 160- pin, 5-row J1/J2 connectors and 95-pin PO connectors in all slots.
PSUVoltage Range (DC): 18 V to 36 V
Nominal Input Voltage: 24 V to 28V
Transient Suppression: Meets requirements of:
– MIL-STD-1275AT (except ignition, cranking and single fault conditions)
– MIL-STD-704D
Output: +5v @ 20A, +3.3V @ 11A, +12V @ 1A, -12V @ 1A
Total Output Power: 160 W
Efficiency: >75%
CoolingThe E104 requires cold plate cooling. Heat is conducted through the aluminium sidewalls, back panel and mounting bars to the bottom side of the enclosure and to the cold plate.
IP/NMEAThe E104 is sealed against humidity and splash. Enclosure mating surfaces are sealed with hollow silicone rubber O-ring seals. Connectors and
other accessories are protected in the same manner.


ExpansionVME64x compliant
ElectricalSee above for PSU specification
Power Dissipation Capability: More than 100W at 71C cold plate temperature (maximum delta T of 15C at card edge).
MechanicalMaximum external dimensions with mounting bars and handle: 6.535" (w) x 14.25" (d) x 7.62" (h)
Temperature-46C to +71C
Humidity5%-95% relative humidity with condensation
WeightLess than 18.5 lbs. (without boards)
VibrationSine Cycling of 10 G (max) at5 to 500 Hz
Random 16 Grms at 20 to 2000 Hz
Transportation* Loose cargo vibration
* Hard mounted
ShockSingle half-sine shocks:
• 40 G peak
• 11 ms duration
• 3 axes
EMCDesigned to meet the emanation and susceptibility limits of MIL-STD-461, as per MILSTD-462 requirements, CE102, CS101, CS114, & RE102.
Warranty1 Year



BoardRefer to datasheet for ordering part number scheme
Recab UK
Interested in this Product?

Get In Touch