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Page 3
Part Numbering
PFC Micro
PCx
1
-x
2
x
3
(-x
4
)-xxxx-x
5
ex: PC6-06-5012-G
x
1
= number of outputs
x
2
= number of VI-200™/VI-J00™ modules
x
3
= number of Maxi/Mini/Micro modules
(-x
4
)
= optional Factory assigned
xxxx
= sequential number assigned by Vicor
x
5
= optional versions
Note:
x
5
= MI for rugged chassis, = MC for rugged chassis with conformal coating
Mechanical Considerations
The PFC Micro™ can be mounted on one of three surfaces using standard 8-32 or 4mm screws.
Maximum allowable torque is 5in.lbs and the maximum penetration of 0.25in [6mm] on the sides and
0.125in [3mm] on the bottom.
When selecting a mounting location and orientation, the unit should be positioned so air flow is not
restricted. Maintain a 2in [5,1cm] minimum clearance at both ends of the PFC Micro and route all cables
so air flow is not obstructed. The power supply draws air in at the fan side/AC input side and exhausts
air out the load side. If air-flow ducting is used, avoid sharp turns that could create back pressure. The
fan moves approximately 10CFM of air.
Avoid excessive bending of output power cables after they are connected to the output terminals.
For high-current outputs, use cable ties to support heavy cables and minimize mechanical stress on
connectors. Be careful not to short-out to neighboring outputs. The maximum torque recommended on
output nuts is 10in.lbs.
Avoid applications in which the unit is exposed to excessive shock or vibration levels as the unit
is designed primarily for office type equipment. In such applications, a shock-absorbing mount
design is required.
PFC Micro Dos and Don’ts
n
n
Do not restrict airflow to the unit. The cooling fan draws air into the unit and forces it out at
the output power terminals. A minimum of two inches in front and behind the supply should be
maintained in order to prevent air obstructions.
n
n
Run the output (+/–) power cables next to each other to minimize inductance.
n
n
Do not attempt to repair or modify the power supply in any manner. In the event of problems,
contact Customer Service at 1-800-735-6200.
n
n
Insert proper fault protection at power supply input terminals (i.e., a fuse).
n
n
Use proper size wires to avoid overheating and excessive voltage drop.
n
n
Output voltages over 60V
DC
, whether from individual modules or series arrays, are considered
as hazardous secondary outputs under UL 60950. Appropriate care must be taken in design
implementation of the supply.
