Description
Digital H7862B 320W Power Supply 120V 6A 50/60Hz DEC VAX PDP Minicomputer PSU
The Digital Equipment Corporation (DEC) H7862B is a 320W proprietary power supply designed for DEC VAX and PDP minicomputer systems. Rated at 120V AC, 6A, 50/60Hz, it uses an IEC C14 AC inlet and a proprietary card-edge output connector system rather than the ATX/Molex connectors found in standard PC power supplies. The unit is enclosed in a robust beige/gold steel chassis with a side-mounted rocker power switch and an internally mounted cooling fan.
Specifications & What's Included
- Manufacturer: Digital Equipment Corporation (DEC)
- Model: H7862B, Hardware Revision B
- Power Output: 320W
- Input Voltage: 120V AC
- Input Current: 6A
- Frequency: 50/60Hz
- AC Inlet: IEC C14 (standard 3-pin inlet on rear panel)
- Output Connectors: Proprietary card-edge connector (wide, ribbon-style) + two multi-pin headers (4-pin and 5-pin, Molex-style) on top-front edge
- Power Switch: Rocker switch (I/O) mounted on left side panel
- Cooling: Internal fan with wire guard on one end
- Chassis: Steel box enclosure, beige/gold finish, rubber feet on base
- Certifications: UL, CSA listed
- Includes: Power supply unit only
Applications
The H7862B is a proprietary power supply from Digital Equipment Corporation, used in DEC VAX and PDP minicomputer systems manufactured during the 1980s and into the early 1990s — the era when DEC was one of the dominant forces in minicomputing and workstation computing before the widespread shift to commodity PC architecture. Unlike standard ATX power supplies, DEC used custom form factors and output connector schemes tailored to specific chassis and backplane designs, making OEM replacement units like the H7862B the only direct-fit option for VAX and PDP system maintainers. These power supplies remain in demand today among operators running legacy DEC hardware in production, archival, or lab environments, as well as collectors and hobbyists preserving vintage DEC systems. The IEC inlet allows connection via a standard PC-style power cord.
This Digital Equipment Corporation (DEC) H7862B 320W power supply has been bench-tested at our facility and is in good working condition. The chassis shows typical wear for a unit of its age — light scuffing and surface oxidation on the beige/gold metal enclosure — but the unit is fully functional. Warning and rating labels are present and legible. The IEC AC inlet, card-edge output connector, and front-mounted multi-pin headers are all intact. The cooling fan spins freely with no unusual noise. Please view our photo set and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
Digital Equipment Corporation (DEC) |
Model: |
H7862B |
MPN: |
H7862B |
Type: |
Proprietary Computer Power Supply |
SKU: |
19036 |
Power Output: |
320W |
Input Voltage: |
120V AC |
Input Current: |
6A |
Frequency: |
50/60Hz |
AC Inlet Type: |
IEC C14 |
Output Connector: |
Proprietary card-edge / multi-pin headers |
Hardware Revision: |
Rev B |
Cooling: |
Internal fan with wire guard |
Power Switch: |
Rocker switch (I/O) on side panel |
Certifications: |
UL, CSA |
Compatible With: |
DEC VAX, PDP minicomputer systems |
Form Factor: |
Proprietary box / standalone |
Country/Region of Manufacture: |
United States |
Seller Notes: |
Bench-tested at our facility and in good working condition. |
Condition Notes: |
This Digital DEC H7862B 320W power supply has been bench-tested at our facility and is in good working condition. Chassis shows light scuffing typical of age. All connectors intact. Please view our photos and contact us with any questions. |
California Prop 65 Warning: |
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov |