PD -20503C
SCHOTTKY RECTIFIER
35CLQ045
35 Amp
Major Ratings and Characteristics
Characteristics
I
F(AV)
Rectangular
Waveform
V
RRM
I
FSM
@ tp = 8.3ms sine
V
F
@ 20Apk, T
J
= 125°C
(Per Leg)
T
J
, T
stg
Operating and Storage
35CLQ045
35
Units
A
Description/Features
The 35CLQ045 center tap Schottky rectifier has been
expressly designed to meet the rigorous requirements of
hi -rel environments. It is packaged in the hermetic surface
mount SMD-1 ceramic package and has extremely low
reverse leakage at high temperature. Full MIL-PRF-19500
quality conformance testing is available on source control
drawings to JANTX, JANTXV and S levels.Typical
applications include switching power supplies and
resonant power converters.
Hermetically Sealed
Low Forward Voltage Drop
High Frequency Operation
Guard Ring for Enhanced Ruggedness and Long
Term Reliability
• Surface Mount
• Center Tap
• Light Weight
•
•
•
•
45
300
0.57
V
A
V
-55 to 150
°C
CASE STYLE
2
1
3
IR Case Style SMD-1
ANODE COMMON ANODE
CATHODE
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1
12/22/99
35CLQ045
Voltage Ratings
Part Number
V
R
Max. DC Reverse Voltage (V) (Per Leg)
V
RWM
Max. Working Peak Reverse Voltage (V) (Per Leg)
35CLQ045
45
Absolute Maximum Ratings
Parameters
I
F(AV)
Max. Average Forward Current
See Fig.5
I I
FSM
Max. Peak One Cycle Non-Repetitive
Surge Current
(Per Leg)
300
A
@ t
p
= 8.3 ms sine
35CLQ045
Units
35
A
Conditions
50% duty cycle @ T
C
= 107°C,rectangular waveform
Electrical Specifications
Parameters
V
FM
Max. Forward Voltage Drop
(Per Leg)
See Fig. 1
35CLQ045
0.63
0.75
0.57
0.71
I
RM
C
T
L
S
Max. Reverse Leakage Current
(Per Leg)
See Fig. 2
Max. Junction Capacitance (Per Leg)
Typical Series Inductance (Per Leg)
0.5
20
1400
2.8
Units
V
V
V
V
mA
mA
pF
nH
@ 20A
@ 35A
@ 20A
@ 35A
T
J
= 25°C
T
J
= 125°C
Conditions
T
J
= 25°C
T
J
= 125°C
V
R
= rated V
R
V
R
= 5V
DC
, (test signal range 100KHz to 1MHz) 25°C
Measured from center of bond pad to end of anode
bonding wire
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 Description (Square)
Case Style
Pulse Width < 300µs, Duty Cycle < 2%
2.6
0.15
SMD-1
g
inches
0.70
°C/W
DC operation
35CLQ045
-55 to 150
-55 to 150
1.40
Units
°C
°C
°C/W
Conditions
R
thJC
Max. Thermal Resistance, Junction
DC operation
See Fig. 4
2
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35CLQ045
100
100
T
J
= 150°C
Reverse Current - I
R
( mA )
10
125°C
100°C
1
0.1
Instantaneous Forward Current - I
F
(A)
0.01
25°C
0.001
10
T
J
= 1 5 0 ° C
T
J
= 1 2 5 ° C
T
J
=
25°C
0.0001
0
10
20
30
40
50
A
Reverse Voltage - V
R
(V)
Fig. 2 - Typical Values of Reverse Current
Vs. Reverse Voltage (Per Leg)
10000
1
Junction Capacitance - C
T
(pF)
T
J
= 25°C
1000
0.1
0.0
0.2
0.4
0.6
0.8
1.0
1.2
100
0
10
20
30
40
A
50
Forward Voltage Drop - V
M
F
(V)
Reverse Voltage - V
R
(V)
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
Fig. 3 - Typical Junction Capacitance Vs.
Reverse Voltage (Per Leg)
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3
35CLQ045
10
Thermal Response (Z
thJC
)
1
D = 0.50
0.20
0.10
P
DM
t
1
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
t
2
0.1
0.05
0.02
0.01
0.01
0.00001
t
1
, Rectangular Pulse Duration (sec)
Fig. 4 - Max. Thermal Impedance Z
thJC
Characteristics (Per Leg)
160
Allowable Case Temperature - (°C)
35CLQ045
R
t h J C
(DC) = 1.40°C/W
140
120
DC
100
80
60
0
10
20
30
40
50
60
A
Average Forward Current - I
-
(
I
F
)
(A)
Average Forward Current
F A V
(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 GREAT BRITAIN:
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IR CANADA:
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IR GERMANY:
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IR ITALY:
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IR JAPAN:
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IR SOUTHEAST ASIA:
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IR TAIWAN:16
Fl. Suite D. 207, Sec. 2, Tun Haw South Road, Taipei, 10673, Taiwan Tel: 886-2-2377-9936
Data and specifications subject to change without notice.
12/99
4
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