Picor® MicroRAM™
Output Ripple Attenuator Module

MICRO_RAM.jpg

Description

The MicroRAM output ripple attenuation module combines both active and passive filtering to achieve greater than 40 dB of noise attenuation from 60 Hz to
1 MHz. The MicroRAM operates over a range of
3 – 30 VDC, is available in either 20 or 30 A models and is compatible with most manufacturers switching converters including Vicor's VI-200/VI-J00 and Maxi, Mini and Micro series DC-DC converters.

The MicroRAM's closed loop architecture greatly improves load transient response with dual-mode control, provides precise point-of-load voltage regulation. The MicroRAM supports redundant and parallel operation with its integrated ORing
diode function.

Specifications
Input Voltages  

3 – 30 VDC

Output Power  

µRAM2(xxx) 20 A

µRAM3(xxx) 30 A

Efficiency   Up to 98%
Dimensions   

2.28 x 1.45 x 0.50 in
57.9 x 36.8 x 12.7 mm

   

 

 

PDF Icon Data Sheet »

 

Find

Compatible Converters

The MicroRAM – Output Ripple Attenuator Module – works in conjunction with a specific set of Vicor converters to deliver optimal efficiency, power and protection.
 
To easily view the appropriate converter components needed for the desired MicroRAM, please use the PowerBench Solution Selector tool to locate compatible offerings.

Use the matrix below to select a module to meet your needs. You can click on the filter icons at the top of each column to filter results. Click on the column heading to sort the column. Once you have made your selection click on the add to cart option to purchase prototype quantities.

  

Part Number
Filter Column
Power (A)
Filter Column
Product Grade
Filter Column
Pin Style
Filter Column
RoHS Compliant
Filter Column
Baseplate

Purchase Online
URAM2C11 20 –20°C to +100°C Short No Slotted Add to Cart »
URAM2C12 20 –20°C to +100°C Short No Threaded Add to Cart »
URAM2C13 20 –20°C to +100°C Short No Through hole Add to Cart »
URAM2C21 20 –20°C to +100°C Long No Slotted Add to Cart »
URAM2C22 20 –20°C to +100°C Long No Threaded Add to Cart »
URAM2C23 20 –20°C to +100°C Long No Through hole Add to Cart »
URAM2CF1 20 –20°C to +100°C Short RoHS Yes Slotted Add to Cart »
URAM2CF2 20 –20°C to +100°C Short RoHS Yes Threaded Add to Cart »
URAM2CF3 20 –20°C to +100°C Short RoHS Yes Through hole Add to Cart »
URAM2CG1 20 –20°C to +100°C Long RoHS Yes Slotted Add to Cart »
URAM2CG2 20 –20°C to +100°C Long RoHS Yes Threaded Add to Cart »
URAM2CG3 20 –20°C to +100°C Long RoHS Yes Through hole Add to Cart »
URAM2CN1 20 –20°C to +100°C Long ModuMate No Slotted Add to Cart »
URAM2CN2 20 –20°C to +100°C Long ModuMate No Threaded Add to Cart »
URAM2CN3 20 –20°C to +100°C Long ModuMate No Through Hole Add to Cart »
URAM2CS1 20 –20°C to +100°C Short ModuMate No Slotted Add to Cart »
URAM2CS2 20 –20°C to +100°C Short ModuMate No Threaded Add to Cart »
URAM2CS3 20 –20°C to +100°C Short ModuMate No Through hole Add to Cart »
URAM2H11 20 –40°C to +100°C[a] Short No Slotted Add to Cart »
URAM2H12 20 –40°C to +100°C[a] Short No Threaded Add to Cart »
URAM2H13 20 –40°C to +100°C[a Short No Through hole Add to Cart »
URAM2H21 20 –40°C to +100°C[a] Long No Slotted Add to Cart »
URAM2H22 20 –40°C to +100°C[a] Long No Threaded Add to Cart »
URAM2H23 20 –40°C to +100°C[a] Long No Through hole Add to Cart »
URAM2HF1 20 –40°C to +100°C[a] Short RoHS Yes Slotted Add to Cart »
1   2  3   >   144 products
Features & Benefits
  • >40 dB ripple attenuation from 60 Hz to 1MHz
  • Integrated ORing diode supports N+1 redundancy
  • Significantly improves load transient response
  • User selectable performance optimization
  • Combined active and passive filtering
  • 20 and 30 Ampere ratings
Diagram
microram-block-diagram.jpg

Typical configuration using remote sense.

Click image to enlarge. 

 

Packaging Options

2-D Micro-Size Drawings (referring to drawing number 25004)


DXFOutline Drawing for Micro DC-DC Converter »

PDFOutline Drawing for Micro DC-DC Converter »

 

3-D Micro-Size Module (referring to drawing number 25004)
 

DXFMicro, short tin / lead pin, slotted baseplate »

3D PDFMicro, short tin / lead pin, slotted baseplate »

STEPMicro, short tin / lead pin, threaded baseplate »

3D PDFMicro, short tin / lead pin, threaded baseplate »

STEPMicro, short tin / lead pin, through-hole baseplate »

3D PDFMicro, short tin / lead pin, through-hole baseplate »

 

STEPMicro, long tin / lead pin, slotted baseplate »

3D PDFMicro, long tin / lead pin, slotted baseplate »

STEPMicro, long tin / lead pin, threaded baseplate »

3D PDFMicro, long tin / lead pin, threaded baseplate »

STEPMicro, long tin / lead pin, through-hole baseplate »

3D PDFMicro, long tin / lead pin, through-hole baseplate »

 

STEPMicro, short ModuMate, slotted baseplate »

3D PDFMicro, short ModuMate, slotted baseplate »

STEPMicro, short ModuMate, threaded baseplate »

3D PDFMicro, short ModuMate, threaded baseplate »

STEPMicro, short ModuMate, through-hole baseplate »

3D PDFMicro, short ModuMate, through-hole baseplate »

 

STEPMicro, long ModuMate, slotted baseplate »

3D PDFMicro, long ModuMate, slotted baseplate »

STEPMicro, long ModuMate, threaded baseplate »

3D PDFMicro, long ModuMate, threaded baseplate »

STEPMicro, long ModuMate, through-hole baseplate »

3D PDFMicro, long ModuMate, through-hole baseplate »

 

STEPMicro, short gold pin (RoHS), slotted baseplate »

3D PDFMicro, short gold pin (RoHS), slotted baseplate »

STEPMicro, short gold pin (RoHS), threaded baseplate »

3D PDFMicro, short gold pin (RoHS), threaded baseplate »

STEPMicro, short gold pin (RoHS), through-hole baseplate »

3D PDFMicro, short gold pin (RoHS), through-hole baseplate »

 

STEPMicro, long gold pin (RoHS), slotted baseplate »

3D PDFMicro, long gold pin (RoHS), slotted baseplate »

STEPMicro, long gold pin (RoHS), threaded baseplate »

3D PDFMicro, long gold pin (RoHS), threaded baseplate »

STEPMicro, long gold pin (RoHS), through-hole baseplate »

3D PDFMicro, long gold pin (RoHS), through-hole baseplate »

Related Products

 

 

DC-DC    

 

Converters    
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Maxi, Mini, Micro   Go  

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Accessories

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EMI Shielding

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Micro-size Shield   Part
Number
  RoHS
Compliant
  Module Style        
 
   
 
   
 
  Technical Drawing    
001x001px_005195.jpg
For Slotted Baseplate   30141   Yes   Micro                   PDF   Add to Cart  
                      DXF  
001x001px_005195.jpg
For Threaded or
Through hole Baseplate
  30143   Yes   Micro                   PDF   Add to Cart  
                      DXF  

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For InMate headers, all sockets are supplied to assure proper alignment during installation.
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JPGExample Inboard Mounting »
JPGExample Onboard Mounting »
 
InMate
Sockets
  Part
Number
  RoHS
Compliant
  Mounting
Style
  Module Style   Pin
Style
  Board
Thickness

(Nominal)
  Board
Thickness

(Min/Max)
  Technical Drawing    
001x001px_005195.jpg
Set
(5) Input, (5) Ouput
  18370   Yes   Inboard   Micro   Short RoHS (Gold)   0.063"   0.055" / 0.071"   PDF   Add to Cart  
                DXF  
001x001px_acc0c7.jpg
Input Only
(40) Pieces
  18376   Yes   Inboard   Micro   Short RoHS (Gold)   0.063"   0.055" / 0.071"       Add to Cart  
001x001px_acc0c7.jpg
Output Only
(40) Pieces
  18386   Yes   Inboard   Micro   Short RoHS (Gold)   0.063"   0.055" / 0.071"       Add to Cart  
001x001px_005195.jpg
Set
(5) Input, (5) Ouput
  18372   Yes   Onboard   Micro   Long RoHS (Gold)   0.063"   0.055" / 0.071"   PDF   Add to Cart  
                DXF  
001x001px_acc0c7.jpg
Input Only
(40) Pieces
  18380   Yes   Onboard   Micro   Long RoHS (Gold)   0.063"   0.055" / 0.071"       Add to Cart  
001x001px_acc0c7.jpg
Output Only
(40) Pieces
  18392   Yes   Onboard   Micro   Long RoHS (Gold)   0.063"   0.055" / 0.071"       Add to Cart  
001x001px_005195.jpg
Set
(5) Input, (5) Ouput
  18371   Yes   Inboard   Micro   Short RoHS (Gold)   0.094"   0.084" / 0.104"   PDF   Add to Cart  
                DXF  
001x001px_acc0c7.jpg
Input Only
(40) Pieces
  18377   Yes   Inboard   Micro   Short RoHS (Gold)   0.094"   0.084" / 0.104"       Add to Cart  
001x001px_acc0c7.jpg
Output Only
(40) Pieces
  18387   Yes   Inboard   Micro   Short RoHS (Gold)   0.094"   0.084" / 0.104"       Add to Cart  
001x001px_005195.jpg
Set
(5) Input, (5) Ouput
  18373   Yes   Onboard   Micro   Long RoHS (Gold)   0.094"   0.084" / 0.104"   PDF   Add to Cart  
                DXF  
001x001px_acc0c7.jpg
Input Only
(40) Pieces
  18381   Yes   Onboard   Micro   Long RoHS (Gold)   0.094"   0.084" / 0.104"       Add to Cart  
001x001px_acc0c7.jpg
Output Only
(40) Pieces
  18393   Yes   Onboard   Micro   Long RoHS (Gold)   0.094"   0.084" / 0.104"       Add to Cart  
001x001px_005195.jpg
Set
(5) Input, (5) Ouput
  21512   Yes   Onboard   Micro   Long RoHS (Gold)   0.125"   0.1125" / 0.1375"   PDF   Add to Cart  
                DXF  
001x001px_acc0c7.jpg
Input Only
(40) Pieces
  21540   Yes   Onboard   Micro   Long RoHS (Gold)   0.125"   0.1125" / 0.1375"       Add to Cart  
001x001px_acc0c7.jpg
Output Only
(40) Pieces
  21545   Yes   Onboard   Micro   Long RoHS (Gold)   0.125"   0.1125" / 0.1375"       Add to Cart  

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Socket Extraction Tool

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Module
Exchange Tool
  Part
Number
  RoHS
Compliant
  Module
Style
                  Technical Drawing    
001x001px_005195.jpg
Used to facilitate the proper extraction of Micro modules from InMate or SurfMate sockets.   22829   N/A   Micro                     Add to Cart  

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Thermal Management

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Heat Sinks listed in the table below are for use with Vicor Micro-size modules.
These heat sinks are NOT for use with Vicor VI-200 or V1-J00-size modules.
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TOOLHeat Sink Thermal Data and Calculator »
 
Heat Sinks
Longitudinal Fins
  Part
Number
  RoHS
Compliant
  Mounting
Style
  Module Style               Technical Drawing    
001x001px_005195.jpg
0.40"   32174   Yes   Threaded   Micro   Not for use with threaded baseplates   PDF   Add to Cart  
            DXF  
001x001px_005195.jpg
0.90"   30190   Yes   Threaded
 
  Micro   Not for use with threaded baseplates   PDF   Add to Cart  
            DXF  
001x001px_005195.jpg
0.40"   30719   Yes   Through hole   Micro               PDF   Add to Cart  
                      DXF  
001x001px_005195.jpg
0.90"   30183   Yes   Through hole   Micro               PDF   Add to Cart  
                      DXF  

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Back to Top 
 

001x001px_alpha.png

Heat Sinks listed in the table below are for use with Vicor Micro-size modules.
These heat sinks are NOT for use with Vicor VI-200 or V1-J00-size modules.
001x001px_alpha.png
TOOLHeat Sink Thermal Data and Calculator »
 
Heat Sinks
Transverse Fins
  Part
Number
  RoHS
Compliant
  Mounting
Style
  Module Style               Technical Drawing    
001x001px_005195.jpg
0.40"   32173   Yes   Threaded   Micro   Not for use with threaded baseplates   PDF   Add to Cart  
            DXF  
001x001px_005195.jpg
0.90"   30270   Yes   Threaded
 
  Micro   Not for use with threaded baseplates   PDF   Add to Cart  
            DXF  
001x001px_005195.jpg
0.40"   30722   Yes   Through hole   Micro               PDF   Add to Cart  
                      DXF  
001x001px_005195.jpg
0.90"   30725   Yes   Through hole   Micro               PDF   Add to Cart  
                      DXF  

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Back to Top 
 

001x001px_alpha.png

Heat Sinks listed in the table below are for use with Vicor Micro-size modules.
These heat sinks are NOT for use with Vicor VI-200 or V1-J00-size modules.
001x001px_alpha.png
TOOLHeat Sink Thermal Data and Calculator »
 
Heat Sinks
Low-Profile
Side-Fin
  Part
Number
  RoHS
Compliant
  Module Style   Height               Technical Drawing    
001x001px_005195.jpg
0.55"   30095   Yes   Micro   0.125" above module baseplate       PDF   Add to Cart  
               

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Thermal Pads listed in the table below are for use with Vicor Micro-size modules.
These Thermal Pads are NOT for use with Vicor VI-200 or V1-J00 modules.
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ThermMate
Thermal Pads
  Part
Number
  RoHS
Compliant
  Module Style                   Technical Drawing    
001x001px_005195.jpg
0.007"   20265   Yes   Micro                   PDF   Add to Cart  
                      DXF  

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