PD-93965A
SCHOTTKY RECTIFIER
HIGH EFFICIENCY SERIES
35SCGQ045
35 Amp, 45V
Major Ratings and Characteristics
Characteristics
I
F(AV)
V
RRM
(Per Leg)
I
FSM
@ tp = 8.3ms half-sine
(Per Leg)
V
F
@ 30Apk, T
J
=125°C
(Per Leg)
35SCGQ045 Units
35
45
200
0.74
A
V
A
V
°C
Description/Features
The 35SCGQ045 center tap Schottky rectifier has been
expressly designed to meet the rigorous requirements
of Hi-rel environments. It is packaged in the hermetic
isolated TO-254AA package. The device's forward voltage
drop and reverse leakage current are optimized forthe
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
•
•
•
•
•
T
J
,T
stg
Operating and storage
-55 to 150
0.12 [.005]
CASE STYLE
3.78 [.149]
3.53 [.139]
A
13.84 [.545]
13.59 [.535]
6.60 [.260]
6.32 [.249]
1.27 [.050]
1.02 [.040]
17.40 [.685]
16.89 [.665]
1
2
3
20.32 [.800]
20.07 [.790]
13.84 [.545]
13.59 [.535]
B
C
17.40 [.685]
16.89 [.665]
0.84 [.033]
MAX.
3X
3.81 [.150]
2X
1.14 [.045]
0.89 [.035]
0.36 [.014]
B A
3.81 [.150]
1
2
3
ANODE COMMON ANODE
CATHODE
Case Outline and Dimensions - TO-254AA
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1
07/05/05
35SCGQ045
Voltage Ratings
Part number
V
R
Max. DC Reverse Voltage (V) (Per Leg)
V
RWM
Max. Working Peak Reverse Voltage (V) (Per Leg)
35SCGQ045
45
Absolute Maximum Ratings
Parameters
I
F(AV)
Max. Average Forward Current
See Fig. 5
I
FSM
Max. Peak One Cycle Non - Repetitive
Surge Current (Per Leg)
200
A
@ t
p
= 8.3 ms half-sine
Limits
35
Units
A
Conditions
50% duty cycle @ T
C
= 116 °C, square waveform
Electrical Specifications
Parameters
V
FM
Max. Forward Voltage Drop
(Per Leg) See Fig. 1
Limits
0.61
0.74
0.54
0.73
0.47
0.74
Units
V
V
V
V
V
V
mA
mA
mA
pF
nH
@ 15A
@ 30A
@ 15A
@ 30A
@ 15A
@ 30A
T
J
= 25°C
T
J
= 100°C
T
J
= 125°C
Conditions
T
J
= -55°C
T
J
= 25°C
T
J
= 125°C
I
RM
Max. Reverse Leakage Current
(Per Leg) See Fig. 2
0.70
75
160
V
R
= rated V
R
C
T
L
S
Max. Junction Capacitance (Per Leg)
Typical Series Inductance (Per Leg)
2000
7.8
V
R
= 5V
DC
( 1MHz, 25°C )
Measured from anode lead to cathode lead
6mm ( 0.025 in.) from package
Thermal-Mechanical Specifications
Parameters
T
J
T
stg
Max.Junction Temperature Range
Max. Storage Temperature Range
to Case (Per Leg)
R
thJC
Max. Thermal Resistance, Junction
to Case (Per Package)
wt
Weight (Typical)
Die Size (Typical)
Case Style
Pulse Width < 300µs, Duty Cycle < 2%
9.3
150X180
TO-254AA
g
mils
0.63
°C/W
DC operation
Limits Units
-55 to 150
-55 to 150
1.25
°C
°C
°C/W
DC operation
Conditions
R
thJC
Max. Thermal Resistance, Junction
See Fig. 4
2
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35SCGQ045
1000
Reverse Current - I R ( mA )
100
125°C
100°C
10
75°C
100
1
0.1
25°C
0.01
0
10
20
30
40
50
Reverse Voltage - VR (V)
Instantaneous Forward Current - I F (A)
Fig. 2 - Typical Values of Reverse Current
Vs. Reverse Voltage (Per Leg)
10
10000
Tj = 125°C
Tj = 25°C
Junction Capacitance - CT (pF)
T J = 25°C
1000
Tj = -55°C
1
0.0
0.2
0.4
0.6
0.8
1.0
Forward Voltage Drop - V F (V)
100
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
0
10
20
30
40
50
Reverse Voltage -V R (V)
Fig. 3 - Typical Junction Capacitance Vs.
Reverse Voltage (Per Leg)
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3
35SCGQ045
10
Thermal Response (Z
thJC
)
1
D = 0.50
0.20
0.10
0.1
0.05
0.02
0.01
SINGLE PULSE
(THERMAL RESPONSE)
Notes:
1. Duty factor D = t
1
/ t
2
2. Peak T
J
= P
DM
x Z
thJC
+ T
C
0.0001
0.001
0.01
0.1
1
P
DM
t
1
t
2
0.01
0.00001
t
1
, Rectangular Pulse Duration (sec)
Fig. 4 - Max. Thermal Impedance Z
thJC
Characteristics (Per Leg)
180
160
35SCGQ045
Allowable Case Temprature - (°C)
R thJC = 1.25°C/W
140
120
100
80
60
40
20
0
0
10
20
30
40
50
60
DC
Average Forward Current - I F(AV) (A)
Fig. 5 - Max. Allowable Case Temperature Vs.
Average Forward Current (Per Leg)
WORLD HEADQUARTERS:
233 Kansas St., El Segundo, California 90245, Tel: (310) 252-7105
IR LEOMINSTER:
205 Crawford St., Leominster, Massachusetts 01453, Tel: (978) 534-5776
Data and specifications subject to change without notice.
07/2005
4
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