SCHOTTKY RECTIFIER
25A, 45V
22DGQ045
Major Ratings and Characteristics
Description/Features
02/22/02
CASE STYLE
www.irf.com
1
Characteristics
22DGQ045 Units
I
F(AV)
25
A
V
RRM
(Per Leg)
45
V
I
FSM
@ tp = 8.3ms half-sine
(Per Leg)
300
A
V
F
@ 25Apk, T
J
=125C
0.76
V
(Per Leg)
T
J
, T
stg
Operating and storage
-55 to 150
C
HIGH EFFICIENCY SERIES
IR Case Style TO-254AA
6.60 [.260]
6.32 [.249]
1.27 [.050]
1.02 [.040]
0.12 [.005]
13.84 [.545]
13.59 [.535]
13.84 [.545]
13.59 [.535]
3.81 [.150]
2X
17.40 [.685]
16.89 [.665]
A
1.14 [.045]
0.89 [.035]
0.36 [.014]
B A
3X
B
20.32 [.800]
20.07 [.790]
3.78 [.149]
3.53 [.139]
1
2
3
17.40 [.685]
16.89 [.665]
3.81 [.150]
0.84 [.033]
MAX.
C
NOT ES :
1. DIMENS IONING & T OLE RANCING PER AS ME Y14.5M-1994.
2. AL L DIMENS IONS ARE S HOWN IN MILLIMET ERS [INCHES ].
3. CONT ROL LING DIMENS ION: INCH.
4. CONF ORMS T O JEDE C OUT LINE T O-254AA.
PD -20358E
The 22DGQ045 (series doubler) 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 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
controlled drawings to TX, TXV and S levels.
Hermetically Sealed
High Frequency Operation
Guard Ring for Enhanced Ruggedness and Long
Term Reliability
Schottky Diodes Connected in Series
Electrically Isolated
22DGQ045
2
www.irf.com
Part number
22DGQ045
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
25
A
50% duty cycle @ T
C
= 100C, square waveform
See Fig. 5
I
FSM
Max. Peak One Cycle Non - Repetitive
300
A
@ t
p
= 8.3 ms half-sine
Surge Current (Per Leg)
Absolute Maximum Ratings
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
1.67
C/W
DC operation
See Fig. 4
to Case (Per Leg)
R
thJC
Max. Thermal Resistance, Junction
0.83
C/W
DC operation
to Case (Per Package)
wt
Weight (Typical)
9.3 g
Die Size (Typical)
125X125 mils
Case Style
TO-254AA
Thermal-Mechanical Specifications
Parameters
Limits
Units
Conditions
V
FM
Max. Forward Voltage Drop
0.82
V
@ 25A
T
J
= 25C
(Per Leg) See Fig. 1
Q
1.18
V
@ 50A
0.76
V
@ 25A
T
J
= 125C
1.11
V
@ 50A
I
RM
Max. Reverse Leakage Current
0.5
mA
T
J
= 25C
V
R
= rated V
R
(Per Leg) See Fig. 2
Q
20
mA
T
J
= 125C
C
T
Max. Junction Capacitance (Per Leg)
1400
pF
V
R
= 5V
DC
( 1MHz, 25C )
L
S
Typical Series Inductance (Per Leg)
6.7
nH
Measured from anode lead to cathode lead
6mm ( 0.025 in.) from package
Electrical Specifications
22DGQ045
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)
0.0001
0.001
0.01
0.1
1
10
100
0
10
20
30
40
50
R
A
T = 15 0C
1 2 5 C
10 0C
2 5 C
J
R e v e rs e V o lta g e - V (V )
22DGQ045
4
www.irf.com
Fig. 5 - Max. Allowable Case Temperature Vs.
Average Forward Current
Fig. 4 - Max. Thermal Impedance Z
thJC
Characteristics (Per Leg)
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. 02/02
22DGQ045
R
thJC
(DC) = 1.67C/W
PDF 
ZIP