International Rectifier 35 SCQ 030 Service Manual
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L
T
E
PD -94229
SCHOTTKY RECTIFIER
HIGH EFFICIENCY SERIES
Major Ratings and Characteristics Description/Features
Characteristics 35SCGQ030 Units
I
F(AV)
V
(Per Leg) 30 V
RRM
I
@ tp = 8.3ms half-sine 150 A
FSM
(Per Leg)
35 A
VF @ 17.5Apk, TJ =125°C 0.53 V
(Per Leg)
TJ, T
Operating and storage -55 to 150 °C
stg
The 35SCGQ030 center tap Schottky rectifier has been
expressly designed to meet the rigorous requirements of hirel environments. It is packaged in the hermeticly isolated
TO-254AA package. The device's forward voltage drop
and reverse leakage current are optimized for the lowest
power loss and the highest circuit efficiency for typical high
frequency switching power supplies and resonent power
converters. Full MIL-PRF-19500 quality conformance
testing is available on source control drawings to
TX, TXV and S quality levels.
• Hermetically Sealed
• Center Tap
• Low Forward Voltage Drop
• High Frequency Operation
• Guard Ring for Enhanced Ruggedness and Long term
Reliability
• Lightweight
35SCGQ030
35 Amp, 30V
.12 ( .0 05 )
-B-
1.27 ( .050 )
1.02 ( .040 )
LEGEND
1 - COL
2 - EMI
3 - GAT
3.81 ( .150 )
23
1
ANODE COMMON ANODE
CATHODE
CASE STYLE
3.78 ( .149 )
3.53 ( .139 )
-A-
31.40 ( 1.235 )
30.39 ( 1.199 )
3.81 ( .150 )
17.40 ( .685 )
16.89 ( .665 )
2X
1 2 3
13.84 ( .545 )
13.59 ( .535 )
20.32 ( .800 )
20.07 ( .790 )
-C-
1.14 ( .045 )
3X
0.89 ( .035 )
.50 ( .0 20 ) M C A M B
.25 ( .0 10 ) M C
6.60 ( .260 )
6.32 ( .249 )
13.84 ( .545 )
13.59 ( .535 )
IR Case Style TO-254AA
www.irf.com 1
06/19/01
35SCGQ030
Voltage Ratings
Part number 35SCGQ030
VRMax. DC Reverse Voltage (V) (Per Leg)
V
Max. Working Peak Reverse Voltage (V) (Per Leg)
RWM
Absolute Maximum Ratings
Parameters
I
Max. Average Forward Current 35 A 50% duty cycle @ TC =108 °C, square waveform
F(AV)
See Fig. 5
I
Max. Peak One Cycle Non - Repetitive 150 A @ tp = 8.3 ms half-sine
FSM
Surge Current (Per Leg)
Limits Units Conditions
Electrical Specifications
Parameters Limits Units Conditions
V
Max. Forward Voltage Drop 0.63 V @ 17.5A T
FM
(Per Leg) See Fig. 1Q 0.80 V @ 35A
0.59 V @ 17.5A T
0.81 V @ 35A
0.53 V @ 17.5A T
0.84 V @ 35A
I
Max. Reverse Leakage Current 0.4 m A TJ = 25°C
RM
(Per Leg) See Fig. 2Q 66 mA T
230 mA TJ = 125°C
= 100°CV
J
30
= -55°C
J
= 25°C
J
= 125°C
J
= rated V
R
R
C
Max. Junction Capacitance (Per Leg) 2635 pF VR = 5VDC ( 1MHz, 25°C )
T
L
Typical Series Inductance (Per Leg) 7.8 n H Measured from anode lead to cathode lead
S
6mm ( 0.025 in.) from package
Thermal-Mechanical Specifications
Parameters Limits Units Conditions
TJMax.Junction Temperature Range -55 to 150 °C
T
Max. Storage Temperature Range -55 to 150 °C
stg
R
Max. Thermal Resistance, Junction 1.25 °C/W DC operation See Fig. 4
thJC
to Case (Per Leg)
R
Max. Thermal Resistance, Junction 0.63 °C/W DC operation
thJC
to Case (Per Package)
wt Weight (Typical) 9.3 g
Die Size (Typical) 150X180 mils
Case Style TO-254AA
Q Pulse Width < 300µs, Duty Cycle < 2%
2 www.irf.com
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