Q36SR12019NRFA Datasheet, PDF (10/14 Pages) Delta Electronics, Inc. – Delphi Series Q36SR, Quarter Brick 228W DC/DC Power Modules: 18V~75Vin,12V, 19Aout

THERMAL CURVES
(LONGITUDINAL ORIENTATION)
THERMAL CURVES
(TRANSVERSE ORIENTATION)
240 ^{Output Power(W)Q36SR12019(Standa@rdV) Oinu=tp4u8tVP(oLwoenrgvitsu.dAinmabl Oierniet Tnetamtipoenr)ature and Air Velocity}
200
Natural
Convection
160
100LFM
120
80
40
200LFM
300LFM
400LFM
500LFM
600LFM
NTC RESISTOR
AIRFLOW
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature ( )
Figure 21: Output power vs. Ambient temperature @Vin=48V
(Longitudinal orientation Airflow direction from Vin+ to Vout+,
without heat spreader)
240 ^{Output Power(W)Q36SR12019(Standa@rdV) Oinu=tp6u0tVP(oLwoenrgvitsu.dAinmabl Oierniet Tnetamtiopner)ature and Air Velocity}
HOT SPOT
Figure 23: * Hot spot & NTC resistor temperature measured
points
240 ^{Output Power(W)Q36SR12019(Standa@rd)VOinu=tp2u4tVPo(Twrearnvssv.eArsmebOiernietnTteamtiopne)rature and Air Velocity}
200
Natural
160 Convection
100LFM
120
80
40
200LFM
300LFM
400LFM
500LFM
600LFM
200
Natural
Convection
100LFM
160
200LFM
300LFM
120
400LFM
80
40
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature ( )
Figure 22: Output power vs. Ambient temperature @Vin=60V
(Longitudinal orientation Airflow direction from Vin+ to Vout+,
without heat spreader)
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature ( )
Figure 24: Output power vs. Ambient temperature @Vin=24V
(Transverse orientation Airflow direction from Vin+ to Vin-,
without heat spreader)
10
Q36SR12019_08092012