SCHOTTKY RECTIFIER
15 Amp, 45V
30SCLJQ045
Major Ratings and Characteristics
Description/Features
6/01/01
CASE STYLE
IR Case Style SMD-0.5
www.irf.com
1
Characteristics
30SCLJQ045 Units
I
F(AV)
30
A
V
RRM
(Per Leg)
45
V
I
FSM
@ tp = 8.3ms half-sine
(Per Leg)
112
A
V
F
@ 15Apk, T
J
=125C
0.69
V
(Per Leg)
T
J
, T
stg
Operating and storage
-55 to 150
C
ANODE COMMON ANODE
CATHODE
2
1
3
HIGH EFFICIENCY SERIES
The 30SCLJQ045 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-0.5 ceramic 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
Surface Mount
Lightweight
PD -93948B
30SCLJQ045
2
www.irf.com
Part number
30SCLJQ045
V
R
Max. DC Reverse Voltage (V) (Per Leg)
V
RWM
Max. Working Peak Reverse Voltage (V) (Per Leg)
Voltage Ratings
45
Parameters
Limits Units
Conditions
I
F(AV)
Max. Average Forward Current
30
A
50% duty cycle @ T
C
= 105C, square waveform
See Fig. 5
I
FSM
Max. Peak One Cycle Non - Repetitive
112
A
@ t
p
= 8.3 ms half-sine
Surge Current (Per Leg)
Absolute Maximum Ratings
Parameters
Limits
Units
Conditions
V
FM
Max. Forward Voltage Drop
0.58
V
@ 7.5A
T
J
= -55C
(Per Leg) See Fig. 1
Q
0.70
V
@ 15A
0.54
V
@ 7.5A
T
J
= 25C
0.70
V
@ 15A
0.50
V
@ 7.5A
T
J
= 125C
0.69
V
@ 15A
I
RM
Max. Reverse Leakage Current
0.1
mA
T
J
= 25C
(Per Leg) See Fig. 2
Q
10
mA
T
J
= 100C
V
R
= rated V
R
40
mA
T
J
= 125C
C
T
Max. Junction Capacitance (Per Leg)
400
pF
V
R
= 5V
DC
( 1MHz, 25C )
L
S
Typical Series Inductance (Per Leg)
4.8
nH
Measured from center of cathode pad to center of
Electrical Specifications
Q
Pulse Width < 300s, Duty Cycle < 2%
Parameters
Limits
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
3.5
C/W
DC operation
See Fig. 4
to Case (Per Leg)
R
thJC
Max. Thermal Resistance, Junction
1.75
C/W
DC operation
to Case (Per Package)
wt
Weight (Typical)
1.0 g
Die Size (Typical)
70X92 mils
Thermal-Mechanical Specifications
Case Style
SMD-0.5
30SCLJQ045
www.irf.com
3
Fig. 2 - Typical Values of Reverse Current
Vs. Reverse Voltage (Per Leg)
Fig. 3 - Typical Junction Capacitance Vs.
Reverse Voltage (Per Leg)
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
0
10
20
30
40
50
Reverse Voltage - VR (V)
0.001
0.01
0.1
1
10
100
Reverse Current - I
R
( mA )
125C
100C
75C
25C
0
10
20
30
40
50
Reverse Voltage -VR (V)
100
1000
Junction Capacitance - C
T
(pF)
TJ = 25C
0.0
0.2
0.4
0.6
0.8
1.0
Forward Voltage Drop - V F (V)
1
10
100
Instantaneous Forward Current - I
F
(A)
Tj = -55C
Tj = 125C
Tj = 25C
30SCLJQ045
4
www.irf.com
Fig. 5 - Max. Allowable Case Temperature Vs.
Average Forward Current
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)
IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105
TAC Fax: (310) 252-7903
Visit us at www.irf.com for sales contact information.
Data and specifications subject to change without notice. 06/01
0
10
20
30
40
50
Average Forward Current - I F(AV) (A)
0
20
40
60
80
100
120
140
160
180
Allowable Case Temprature - (
C)
30SCLJQ045
R thJC = 1.75C/W
DC
PDF 
ZIP