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URAM3H22 Datasheet(PDF) 1 Page - Vicor Corporation

Part # URAM3H22
Description  Output Ripple Attenuation Module
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Manufacturer  VICOR [Vicor Corporation]
Direct Link  http://www.vicorpower.com
Logo VICOR - Vicor Corporation

URAM3H22 Datasheet(HTML) 1 Page - Vicor Corporation

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Set your site on VICOR at www.vicorpower.com
PRELIMINARY
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
MicroRAM
Rev. 1.1
Page 1 of 8
Features
• >40dB ripple attenuation from
60Hz to 1MHz
• Integrated OR’ing diode supports
N+1 redundancy
• Significantly improves load
transient response
• Efficiency up to 98%
• User selectable performance optimization
• Combined active and passive filtering
• 3-30Vdc input range
• 20 and 30 Ampere ratings
Product Highlights
Vicor’s MicroRAM output ripple attenuation
module combines both active and passive
filtering to achieve greater than 40dB of
noise attenuation from 60Hz to 1Mhz. The
MicroRAM operates over a range of 3 to
30Vdc, is available in either 20 or 30A
models and is compatible with most
manufacturers switching converters
including Vicor’s 1st and 2nd Generation
DC-DC converters.
The MicroRAM’s closed loop architecture
greatly improves load transient response and
with dual mode control, insures precise point
of load voltage regulation, The MicroRAM
supports redundant and parallel operation
with its integrated OR’ing diode function.
It is available in Vicor’s standard micro
package (quarter brick) with a variety of
terminations for through hole, socket or
surface mount applications.
Data Sheet
MicroRAM
TM
Output Ripple Attenuation Module
45
Shown actual size:
2.28 x 1.45 x 0.5 in
57,9 x 36,8 x 12,7 mm
Absolute Maximum Ratings
Thermal Resistance
Parameter
Typ
Unit
Baseplate to sink; flat, greased surface
0.16
°C/Watt
Baseplate to sink; with thermal pad (P/N 20264)
0.14
°C/Watt
Baseplate to ambient
8.0
°C/Watt
Baseplate to ambient; 1000 LFM
1.9
°C/Watt
uRAM
2
C
2
1
Product
Baseplate
1 = Slotted
2 = Threaded
3 = Thru-hole
Pin Style*
1 = Short Pin
2 = Long Pin
S = Short ModuMate
N = Long ModuMate
Product Grade
C = –20°C to +100°C
T = –40°C to +100°C
H = –40°C to +100°C
M = –55°C to +100°C
Type
2= 20A
3= 30A
Part Numbering
*Pin styles S & N are compatible with the ModuMate interconnect system for socketing and surface mounting.
Patents Pending
Parameter
Rating
Unit
Notes
+In to –In
30
Vdc
Continuous
+In to –In
40
Vdc
100ms
Load current
40
Adc
Continuous
Ripple Input (Vp-p)
100
mV
60Hzc100 kHz
Ripple Input (Vp-p)
500
mV
100kHz –2MHz
Mounting torque
4-6 (0.45-0.68)
In. lbs (Nm)
6 each, 4-40 screw
Pin soldering temperature
500 (260)
°F (°C)
5 sec; wave solder
Pin soldering temperature
750 (390)
°F (°C)
7 sec; wave solder
Storage temperature (C, T-Grade)
-40 to +125
°C
Storage temperature (H-Grade)
-55 to +125
°C
Storage temperature (M-Grade)
-65 to +125
°C
Operating temperature (C-Grade)
-20 to +100
°C
Baseplate
Operating temperature (T, H-Grade)
-40 to +100
°C
Baseplate
Operating temperature (M-Grade)
-55 to +100
°C
Baseplate


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