
Vicor Corp.
 Tel: 800-735-6200, 978-470-2900  Fax: 978-475-6715
FasTrak Maxi E-Grade Family    
Rev. 1.1  
Page 1 of 8
Set your site on VICOR at www.vicorpower.com
4.6 x 2.2 x 0.5 in
117 x 56 x 12,7 mm
4
5
Absolute Maximum Ratings
Parameter
Min
Typ
Max
Unit
Baseplate to sink; flat, greased surface
0.08
°C/Watt
Baseplate to sink; thermal pad (P/N 20263)
0.07
°C/Watt
Baseplate to ambient
4.9
°C/Watt
Baseplate to ambient; 1000 LFM
1.1
°C/Watt
Thermal capacity
165 
Watt-sec/°C
Thermal Resistance and Capacity
Data Sheet
FasTrak Maxi E-Grade Family
DC-DC Converter Module
Features
 Input voltages: 24, 48, 300 & 375 V
 DC outputs: 2 V– 48 V
 Programmable output: 10 to 110%
 Regulation: ±0.5% no load to full load
 Efficiency: Up to 90%
 Max operating temp: 100°C, full load
 Power density: Up to 120 W/cubic inch
 Parallelable, with N+M fault tolerance
 Low noise ZCS/ZVS architecture
Product Overview
These DC-DC converter modules use 
advanced power processing, control and
packaging technologies to provide the 
performance, flexibility, reliability and 
cost effectiveness of a mature power 
component. High frequency ZCS/ZVS
switching provide high power density
with low noise and high efficiency. 
Applications
Off-line systems with autoranging or 
PFC frontends, industrial and process
control, distributed power, medical, ATE,
communications, defense, aerospace
Part Numbering
e.g. V300A12E500BL2
V
A
For a description of pin options, see page 6.
Baseplate options include slotted flanges, 
threaded and through-hole.  See page 7 for
dimensions. For other package sizes and
power levels, see the FasTrak Mini (half
size) and FasTrak Micro (quarter size)
datasheets.
Parameter
Rating
Unit
Notes
+In to –In voltage
24 Vin
-0.5 to +36 
Vdc
48 Vin
-0.5 to +75
Vdc
300 Vin
-0.5 to +375
Vdc
375 Vin
-0.5 to +425
Vdc
PC to –In voltage
-0.5 to +7.0
Vdc
PR to –In voltage
-0.5 to +7.0
Vdc
SC to –Out voltage
-0.5 to +1.5
Vdc
–Sense to –Out voltage
1.0
Vdc
Isolation voltage (in to out)
3000
Vrms
Isolation voltage (in to base)
1550
Vrms
Isolation voltage (out to base)
500
Vrms
Operating temperature
-10 to +100
°C
Storage temperature
-20 to +125
°C
Pin soldering temperature
500 (260)
°F (°C)
<5 sec;wave solder
Pin soldering temperature
750 (390)
°F (°C)
<7 sec;hand solder
Mounting torque
5 (0.57)
in-lbs (N-m)
6  each, # 4-40 or M3
E
B
Input Voltage
24:
 18 – 36 Vin
48:
 36 – 75 Vin
300:
 180 – 375 Vin
375:
 250 – 425 Vin
Output Voltage
2:
 2.0 V*
3V3:
 3.3V
5:
 5 V
12:
 12 V
15:
 15 V
24:
 24 V
28:
 28 V
48:
 48 V
54:
 54 V**
Pin Style
Blank:
 Short 
Tin/Lead
L:
Long Tin/Lead
S:
 Short Gold
N:
Long Gold
Output Power (Watts)
Input 2 Vout 3.3 Vout 5 Vout >5 Vout
24 V
–
264
48 V
–
264
300 V
160
264
375 V
–
264
400
400
400
400
400
500
500
600
Baseplate
Blank:
 Slotted
1:
 Threaded
2:
 Through-hole
*
** 375 V input only
300 V input only