SCHOTTKY RECTIFIER
25A, 45V
22DGQ045
Major Ratings and Characteristics Description/Features
02/22/02
CASE STYLE
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Characteristics 22DGQ045 Units
IF(AV) 25 A
VRRM (Per Leg) 45 V
IFSM @ tp = 8.3ms half-sine
(Per Leg) 300 A
V
F
@ 25Apk, TJ =125°C 0.76 V
(Per Leg)
TJ, Tstg 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]
123
17.40 [.685]
16.89 [.665]
3.81 [.150]
0.84 [.033]
MAX.
C
NOT E S :
1. DIMENS IONING & T OLE RANCING PE R AS ME Y14.5M-1994.
2. AL L DI ME NS IONS AR E S H OWN IN MIL L I ME T E R S [IN CHE S ] .
3. CONT ROL L ING DIMENS ION: INCH.
4. CONF ORMS T O JEDE C OUT L INE 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
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Part number 22DGQ045
VRMax. DC Reverse Voltage (V) (Per Leg)
VRWM Max. Working Peak Reverse Voltage (V) (Per Leg)
Voltage Ratings
45
Parameters Limits Units Conditions
IF(AV) Max. Average Forward Current 25 A 50% duty cycle @ TC = 100°C, square waveform
See Fig. 5
IFSM Max. Peak One Cycle Non - Repetitive 300 A @ tp = 8.3 ms half-sine
Surge Current (Per Leg)
Absolute Maximum Ratings
Q Pulse Width < 300µs, Duty Cycle < 2%
Parameters Limits Units Conditions
TJMax.Junction Temperature Range -55 to 150 °C
Tstg Max. Storage Temperature Range -55 to 150 °C
RthJC Max. Thermal Resistance, Junction 1.67 °C/W DC operation See Fig. 4
to Case (Per Leg)
RthJC 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
VFM Max. Forward Voltage Drop 0.82 V @ 25A TJ = 25°C
(Per Leg) See Fig. 1Q1.18 V @ 50A
0.76 V @ 25A TJ = 125°C
1.11 V @ 50A
IRM Max. Reverse Leakage Current 0.5 mA TJ
= 25°CV
R = rated VR
(Per Leg) See Fig. 2 Q20 mA TJ = 125°C
CTMax. Junction Capacitance (Per Leg) 1400 pF VR = 5VDC ( 1MHz, 25°C )
LSTypical Series Inductance (Per Leg) 6.7 nH Measured from anode lead to cathode lead
6mm ( 0.025 in.) from package
Electrical Specifications
22DGQ045
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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 1020304050
R
A
T = 150°C
125°C
100°C
25°C
J
Reverse Voltage - V (V)
22DGQ045
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Fig. 5 - Max. Allowable Case Temperature Vs.
Average Forward Current
Fig. 4 - Max. Thermal Impedance ZthJC 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
RthJC (DC) = 1.67°C/W
