SCHOTTKY RECTIFIER
45A*, 100V
45CKQ100
Major Ratings and Characteristics Description/Features
02/26/02
CASE STYLE
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Characteristics 45CKQ100 Units
IF(AV) Rectangular 45* A
waveform
VRRM (Per Leg) 100 V
IFSM @ tp = 8.3ms half-sine 400 A
(Per Leg)
TJ, Tstg Operating and storage -55 to 150 °C
ANODE COMMON ANODE
CATHODE
123
HIGH EFFICIENCY SERIES
IR Case Style TO-258AA
PD -20355C
The 45CKQ100 center tap Schottky rectifier has been
expressly designed to meet the rigorous requirements of
hi-rel environments. It is packaged in the hermetic isolated
TO-258AA 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
• Center Tap
• Low Forward Voltage Drop
• High Frequency Operation
• Guard Ring for Enhanced Ruggedness and Long
Term Reliability
• Electrically Isolated
(ISOLATED BASE)
V
F
@ 25Apk, TJ =125°C 0.74 V
(Per Leg)
*IF(AV) current is limited by pin diameter
NOT E S :
1. DIMENS IONING & T OL E RANCING PE R ASME Y14.5M-1994.
2. ALL DIMENSIONS ARE SHOWN IN MILLIMETERS [INCHES].
3. CONT ROLLING DIMENS ION: INCH.
4. CONFORMS TO JEDEC OUTLINE TO-258AA BEFORE LEADFORMING.
231
3X
2X
3.55 [.140]
13.97 [.550]
13.46 [.530]
B
0.12 [.005]
1.14 [.045]
0.88 [.035]
6.85 [.270]
6.09 [.240]
21.20 [.835]
20.70 [.815]
17.65 [.695]
17.39 [.685]
4.19 [.165]
3.93 [.155]
0.50 [.020] C A B
0.25 [.010] C
37.00 [1.457]
20.40 [1.197]
17.95 [.707]
17.70 [.697]
19.05 [.750]
12.70 [.500]
1.65 [.065]
1.39 [.055]
C
5.08 [.200]
A
45CKQ100
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Part number 45CKQ100
VRMax. DC Reverse Voltage (V) (Per Leg)
VRWM Max. Working Peak Reverse Voltage (V) (Per Leg)
Voltage Ratings
100
Parameters Limits Units Conditions
IF(AV) Max. Average Forward Current 45* A 50% duty cycle @ TC = 100°C, rectangular waveform
See Fig. 5
IFSM Max. Peak One Cycle Non - Repetitive 400 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 0.83 °C/W DC operation See Fig. 4
to Case (Per Leg)
RthJC Max. Thermal Resistance, Junction 0.42 °C/W DC operation
to Case (Per Package)
wt Weight (Typical) 10.9 g
Die Size 150X150 mils
Case Style TO-258AA
Thermal-Mechanical Specifications
Parameters Limits Units Conditions
VFM Max. Forward Voltage Drop 0.89 V @ 25A
(Per Leg) See Fig. 1Q1.13 V @ 45A
0.74 V @ 25A
0.97 V @ 45A
IRM Max. Reverse Leakage Current 0.8 mA TJ
= 25°CV
R = rated VR
(Per Leg) See Fig. 2 Q45 mA TJ = 125°C
CTMax. Junction Capacitance (Per Leg) 1400 pF VR = 5VDC ( 1MHz, 25°C )
LSTypical Series Inductance (Per Leg) 8.7 nH Measured from anode lead to cathode lead
6mm ( 0.025 in.) from package
Electrical Specifications
TJ = 25°C
TJ =1 25°C
*IF(AV) current is limited by pin diameter
45CKQ100
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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 20406080100
R
A
T = 150°C
125°C
100°C
25°C
J
Reverse Volta
g
e - V (V)
45CKQ100
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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
45CKQ100
RthJC (DC) = 0.42°C/W
