
Vicor Corp.
 Tel: 800-735-6200, 978-470-2900  Fax: 978-475-6715
300V Maxi Family   
Rev. 6.2   
Page 1 of 8
Set your site on VICOR at www.vicorpower.com
Shown actual size:
4.6 x 2.2 x 0.5 in
117 x 56 x 12,7 mm
4
5
Absolute Maximum Ratings
Parameter
Baseplate to sink; flat, greased surface
Baseplate to sink; thermal pad (P/N 20263)
Baseplate to ambient
Baseplate to ambient; 1000 LFM
Thermal capacity
Min
Typ
0.08
0.07
4.9
1.1
165 
Max
Unit
°C/Watt
°C/Watt
°C/Watt
°C/Watt
Watt-sec/°C
Thermal Resistance and Capacity
Data Sheet
300V Input Maxi Family
*
DC-DC Converter Module
Features
 DC input range: 180 - 375V
 Input surge withstand: 400Vfor 100ms
 DC output: 2V - 48V
 Programmable output: 10 to 110%
 Regulation: ±0.2% no load to full load
 Efficiency: Up to 90%
 Maximum operating temperature:   
100°C at full load
 Power density: Up to 100W/cubic inch
 Height above board: 0.43 in. (10,9 mm)
 Parallelable, with N+M fault tolerance
 Low noise ZCS/ZVS architecture
Typical Applications: 
off-line systems, 
distributed power and electric vehicles
Product Overview
This DC-DC converter module uses 
2nd Generation power processing, control
and packaging technologies to provide the
performance, flexibility and cost effectiveness
expected of a mature power component. 
For example, a plated-cavity core transformer
couples widely separated primary and
secondary windings, resulting in low in-to-
out parasitic capacitance and noise. 
High frequency ZCS/ZVS switching,
advanced power semiconductor packaging
and thermal management provide high
power density with low temperature
gradients. Extensive use of silicon
integration results in 1/3 the part count 
of a 1st Generation converter. 
Part Numbering
V 300 A 12 C 500 A
For pin styles see page 6. Slotted baseplate
(style 1) requires no designator. For
threaded baseplate add a 
“
2
”
 to the end of
the part number. For thru-hole, add a 
“
3
”
.
See page 7 for dimensions.
Parameter
+In to 
–
In voltage
+In to 
–
In voltage
PC to 
–
In voltage
PR to 
–
In voltage
SC to 
–
Out voltage
–
Sense to 
–
Out voltage
Isolation voltage (in to out)
Isolation voltage (in to base)
Isolation voltage (out to base)
Storage temperature
Operating temperature
Pin soldering temperature
Pin soldering temperature
Mounting torque
Rating
-0.5 to +375 
400
-0.5 to +7.0
-0.5 to +7.0
-0.5 to +1.5
1.0
3000
1550
500
-40 to +125
-20 to +100
500 (260)
750 (390)
5 (0.57)
Unit
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vrms
Vrms
Vrms
°
C
°
C
°
F (
°
C)
°
F (
°
C)
in-lbs (N-m)
Notes
<100ms
C-Grade
C-Grade
<5 sec;wave solder
<7 sec;hand solder
6  each, # 4-40 or M3
* The modules described here are the highest power for each output voltage. 
Consult factory for availability of lower power units.
Input Voltage
24=24Vin
48=48Vin
300=300Vin
375=375Vin
A = Maxi
B = Mini
C = Micro
Output 
Voltage
Product Grade Temperatures (°C)
Grade
Storage
C = 
-
 40 to +125
 -
 20 to +100
T = 
-
 40 to +125
 -
 40 to +100
H = 
-
 55 to +125
 -
 40 to +100
M = 
-
 65 to +125
 -
 55 to +100
Operating
Pin
Style
Base-
plate
Output 
Power