SCHOTTKY RECTIFIER
35 Amp
35CLQ045
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
Characteristics
35CLQ045
Units
I
F(AV)
Rectangular
35
A
Waveform
V
RRM
45
V
I
FSM
@ tp = 8.3ms sine
300
A
V
F
@ 20Apk, T
J
= 125°C
0.57
V
(Per Leg)
T
J
, T
stg
Operating and Storage
-55 to 150
°C
Major Ratings and Characteristics
Description/Features
12/22/99
CASE STYLE
IR Case Style SMD-1
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1
ANODE COMMON ANODE
CATHODE
2 1 3
PD -20503C
35CLQ045
2
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Part Number
35CLQ045
V
R
Max. DC Reverse Voltage (V) (Per Leg)
V
RWM
Max. Working Peak Reverse Voltage (V) (Per Leg)
Voltage Ratings
45
Parameters
35CLQ045
Units
Conditions
V
FM
Max. Forward Voltage Drop
0.63
V
@ 20A
(Per Leg) See Fig. 1
0.75
V
@ 35A
0.57
V
@ 20A
0.71
V
@ 35A
I
RM
Max. Reverse Leakage Current
0.5
mA
T
J
= 25°C
(Per Leg) See Fig. 2
20
mA
T
J
= 125°C
C
T
Max. Junction Capacitance (Per Leg)
1400
pF
V
R
= 5V
DC
, (test signal range 100KHz to 1MHz) 25°C
L
S
Typical Series Inductance (Per Leg)
2.8
nH
Measured from center of bond pad to end of anode
bonding wire
T
J
= 25°C
T
J
= 125°C
V
R
= rated V
R
Electrical Specifications
Pulse Width < 300µs, Duty Cycle < 2%
Parameters
35CLQ045
Units
Conditions
T
J
Max.Junction Temperature Range
-55 to 150
°C
T
stg
Max. Storage Temperature Range
-55 to 150
°C
R
thJC
Max. Thermal Resistance, Junction
1.40
°C/W
DC operation
See Fig. 4
to Case (Per Leg)
R
thJC
Max. Thermal Resistance, Junction
0.70
°C/W
DC operation
to case (Per Package)
wt
Weight (Typical)
2.6
g
Die Description (Square)
0.15 inches
Case Style
SMD-1
Thermal-Mechanical Specifications
Parameters
35CLQ045
Units
Conditions
I
F(AV)
Max. Average Forward Current
35
A
50% duty cycle @ T
C
= 107°C,rectangular waveform
See Fig.5
I I
FSM
Max. Peak One Cycle Non-Repetitive
300
A
@ t
p
= 8.3 ms sine
Absolute Maximum Ratings
Surge Current
(Per Leg)
35CLQ045
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3
Fig. 2 - Typical Values of Reverse Current
Vs. Reverse Voltage (Per Leg)
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
Reverse Current - I
R
( mA )
Instantaneous Forward Current - I
F
(A)
0 . 0 0 0 1
0 . 0 0 1
0 . 0 1
0 . 1
1
1 0
1 0 0
0
1 0
2 0
3 0
4 0
5 0
A
25°C
100°C
125°C
T = 150°C
J
Reverse Voltage - V
R
(V)
0.1
1
1 0
1 0 0
0.0
0.2
0.4
0.6
0.8
1.0
1.2
F M
Forward Voltage Drop - V (V)
T = 1 5 0 ° C
T = 1 2 5 ° C
T = 25°C
J
J
J
Fig. 3 - Typical Junction Capacitance Vs.
Reverse Voltage (Per Leg)
1 0 0
1 0 0 0
1 0 0 0 0
0
1 0
2 0
3 0
4 0
5 0
T = 25°C
J
Reverse Voltage - V (V)
R
A
Junction Capacitance - C
T
(pF)
35CLQ045
4
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Fig. 5 - Max. Allowable Case Temperature Vs.
Average Forward Current (Per Leg)
6 0
8 0
1 0 0
1 2 0
1 4 0
1 6 0
0
1 0
2 0
3 0
4 0
5 0
6 0
D C
Allowable Case Temperature - (°C)
F ( A V )
A
Average Forward Current - I (A)
35CLQ045
R (DC) = 1.40°C/W
t h J C
Average Forward Current - I
F
(A)
WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, Tel: (310) 252-7105
IR GREAT BRITAIN: Hurst Green, Oxted, Surrey RH8 9BB, UK Tel: ++ 44 1883 732020
IR CANADA: 15 Lincoln Court, Brampton, Ontario L6T3Z2, Tel: (905) 453 2200
IR GERMANY: Saalburgstrasse 157, 61350 Bad Homburg Tel: ++ 49 6172 96590
IR ITALY: Via Liguria 49, 10071 Borgaro, Torino Tel: ++ 39 11 451 0111
IR JAPAN: K&H Bldg., 2F, 30-4 Nishi-Ikebukuro 3-Chome, Toshima-Ku, Tokyo Japan 171 Tel: 81 3 3983 0086
IR SOUTHEAST ASIA: 1 Kim Seng Promenade, Great World City West Tower, 13-11, Singapore 237994 Tel: ++ 65 838 4630
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
Fig. 4 - Max. Thermal Impedance Z
thJC
Characteristics (Per Leg)
0.01
0.1
1
10
0.00001
0.0001
0.001
0.01
0.1
1
Notes:
1. Duty factor D = t / t
2. Peak T = P
x Z
+ T
1
2
J
DM
thJC
C
P
t
t
DM
1
2
t , Rectangular Pulse Duration (sec)
Thermal Response
(Z )
1
thJC
0.01
0.02
0.05
0.10
0.20
D = 0.50
SINGLE PULSE
(THERMAL RESPONSE)
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