Datasheet
Data Sheet: Asceta
TM
 iQG Series –Single Output Quarter Brick 
© 2001 - 2012 TDK Innoveta Inc. 
iQG 12V/33A Droop Load Share Rev 1.4 2/15/2012 
(
877
)
 498-0099
9/15 
Thermal Performance:  iQG48033A120V-1D0 through -1D9: 12V, 33A Output 
Maximum output current vs. ambient temperature at nominal 
input voltage with no base plate for airflow rates natural 
convection (0.3m/s) to 3.0m/s with airflow from pin 3 to pin 1. 
Maximum output current vs. ambient temperature at nominal 
input voltage with no base plate for airflow rates natural 
convection (0.3m/s) to 3.0m/s with airflow from pin 1 to pin 3.
Thermal measurement location – top view 
The thermal curves provided are based upon measurements made in TDK Innoveta’s experimental test setup that is 
described in the Thermal Management section. Due to the large number of variables in system design, TDK Innoveta 
recommends that the user verify the module’s thermal performance in the end application. The critical component should 
be thermo- coupled and monitored, and should not exceed the temperature limit specified in the derating curve above. It 
is critical that the thermocouple be mounted in a manner that gives direct thermal contact otherwise significant 
measurement errors may result. 
Thermal
Measurement
Location
10
15
20
25
30
35
30 40 50 60 70 80 90 100 110 120 130
Ambient Temperature (C)
Output Current (A)
NC 0.3 m/s (60 LFM) 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM)
2.0 m/s (400 LFM) 3.0 m/s (600 LFM) Max Core Temp
10
15
20
25
30
35
30 40 50 60 70 80 90 100 110 120 130
Ambient Temperature (C)
Output Current (A)
NC 0.3 m/s (60 LFM) 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM)
2.0 m/s (400 LFM) 3.0 m/s (600 LFM) Max Core Temp










