PD -20354D
SCHOTTKY RECTIFIER
25GQ045
HIGH EFFICIENCY SERIES
35A, 45V
Major Ratings and Characteristics Description/Features
The 25GQ045 Schottky rectifier has been expressly
designed to meet the rigorous requirements of hi-rel
Characteristics 25GQ045 Units
environments. It is packaged in the hermetic isolated
TO-254AA package. The device's forward voltage drop
I 35 A
F(AV)
and reverse leakage current are optimized for the lowest
power loss and the highest circuit efficiency for typical high
V 45 V
RRM
frequency switching power supplies and resonent power
I @ tp = 8.3ms half-sine converters. Full MIL-PRF-19500 quality conformance
FSM
400 A
testing is available on source controlled drawings to TX,
TXV and S levels.
V @ 35Apk, T =125C 0.84 V
F J
Hermetically Sealed
Low Forward Voltage Drop
T , T Operating and storage -55 to 150 C
J stg
High Frequency Operation
Guard Ring for Enhanced Ruggedness and Long
Term Reliability
Electrically Isolated
0.12 [.005]
6.60 [.260]
13.84 [.545]
3.78 [.149]
6.32 [.249]
13.59 [.535]
3.53 [.139]
1.27 [.050]
CASE STYLE 1.02 [.040]
A
20.32 [.800]
17.40 [.685]
B
20.07 [.790]
13.84 [.545]
16.89 [.665]
13.59 [.535]
12 3
C 17.40 [.685]
0.84 [.033]
16.89 [.665]
MAX.
1.14 [.045]
3X
0.89 [.035]
3.81 [.150]
3.81 [.150]
0.36 [.014] B A
(ISOLATED BASE)
2X
NOTES :
1. DIMENS IONING & T OLERANCING PER ASME Y14.5M-1994. 1 23
2. ALL DIMENSIONS ARE SHOWN IN MILLIMETERS [INCHES].
CATHODE ANODE
3. CONT ROLLING DIMENSION: INCH.
4. CONFORMS TO JEDEC OUTLINE T O-254AA.
IR Case Style TO-254AA
www.irf.com 1
02/25/0225GQ045
Voltage Ratings
Part number 25GQ045
V Max. DC Reverse Voltage (V)
R
45
V Max. Working Peak Reverse Voltage (V)
RWM
Absolute Maximum Ratings
Parameters Limits Units Conditions
I Max. Average Forward Current 35 A 50% duty cycle @ T = 100C, square waveform
F(AV) C
See Fig. 5
I Max. Peak One Cycle Non - Repetitive 400 A @ t = 8.3 ms half-sine
FSM p
Surge Current
Electrical Specifications
Parameters Limits Units Conditions
V Max. Forward Voltage Drop 0.93 V @ 35A T = 25C
FM J
See Fig. 1 1.38 V @ 70A
0.84 V @ 35A T = 125C
J
1.29 V @ 70A
I Max. Reverse Leakage Current 0.8 mA T = 25CV = rated V
RM J R R
See Fig. 2 45 mA T = 125C
J
C Max. Junction Capacitance 2600 pF V = 5V ( 1MHz, 25C )
T R DC
L Typical Series Inductance 7.8 nH Measured from anode lead to cathode lead
S
6mm ( 0.025 in.) from package
Thermal-Mechanical Specifications
Parameters Limits Units Conditions
TJ Max.Junction Temperature Range -55 to 150 C
T Max. Storage Temperature Range -55 to 150 C
stg
R Max. Thermal Resistance, Junction 1.0 C/W DC operation See Fig. 4
thJC
to Case
wt Weight (Typical) 9.3 g
Die Size (Typical) 200X200 mils
Case Style TO-254AA
Pulse Width < 300s, Duty Cycle < 2%
2 www.irf.com