SCHOTTKY RECTIFIER
16 Amp, 45V
16SCYQ045C
Major Ratings and Characteristics Description/Features
01/02/02
CASE STYLE
IR Case Style TO-257AA
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Characteristics 16SCYQ045CUnits
IF(AV) 16 A
VRRM (Per Leg) 45 V
IFSM @ tp = 8.3ms half-sine
(Per Leg) 150 A
VF @ 16Apk, TJ =125°C 0.62 V
(Per Leg)
TJ, Tstg Operating and storage -55 to 150 ° C
ANODE COMMON ANODE
CATHODE
2
13
HIGH EFFICIENCY SERIES
The 16SCYQ045C 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-257AA 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
• Ceramic Eyelets
• Low Forward Voltage Drop
• High Frequency Operation
• Guard Ring for Enhanced Ruggedness and Long term
Reliability
• Lightweight
PD-93980A
3.05 [.120]
0.13 [.005]
0.71 [.028]
MAX.
B
5.08 [.200]
4.83 [.190]
10.92 [. 430]
10.42 [. 410]
1.14 [.045]
0.89 [.035]
16.89 [. 665]
16.39 [. 645]
321
15.88 [. 625]
12.70 [. 500]
0.88 [.035]
0.64 [.025]
Ø 0.50 [. 020] CA B
2X 3X Ø
2.54 [.100]
C
10.66 [. 420]
10.42 [. 410]
A
13.63 [. 537]
13.39 [. 527]
3X Ø
3.81 [.150]
3.56 [.140]
NOTES:
1. DIMENSIONING & TOLERANCING PER ANSI Y14. 5M-1994.
2. CONTROLLING DIMENSION: INCH.
3. DIMENSIONS ARE SHOWN IN MILLIMETERS [INCHES].
4. OUT LINE CONFORMS T O JEDEC OUT LINE T O-257AA.
16SCYQ045C
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Part number 16SCYQ045C
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 16 A 50% duty cycle @ TC = 134°C, square waveform
See Fig. 5
IFSM Max. Peak One Cycle Non - Repetitive 150 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 1.6 °C /W DC operation See Fig. 4
to Case (Per Leg)
RthJC Max. Thermal Resistance, Junction 0.8 °C/W DC operation
to Case (Per Package)
wt Weight (Typical) 4.3 g
Die Size (Typical) 115X170 mils
Thermal-Mechanical Specifications
Case Style T0-257AA
Parameters Limits Units Conditions
VFM Max. Forward Voltage Drop 0.57 V @ 8.0A TJ = -55°C
(Per Leg) See Fig. 1Q0.67 V @ 16A
0.50 V @ 8.0A TJ = 25°C
0.64 V @ 16A
0.42 V @ 8.0A TJ = 125°C
0.62 V @ 16A
IRM Max. Reverse Leakage Current 0.4 m A TJ = 25°C
(Per Leg) See Fig. 2Q70 mA TJ = 100°CV
R = rated VR
160 mA TJ = 125°C
CTMax. Junction Capacitance (Per Leg) 1400 pF VR = 5VDC ( 1MHz, 25°C )
LSTypical Series Inductance (Per Leg) 6.9 nH Measured from anode lead to cathode lead
6mm ( 0.025 in.) from package
Electrical Specifications
16SCYQ045C
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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)
0.0 0.2 0.4 0.6 0.8
Forward Voltage Drop - V F (V)
1
10
100
Instantaneous Forward Current - I F (A)
Tj = -55°C
Tj = 125°C
Tj = 25°C
010 20 30 40 50
Reverse Voltage - VR (V)
0.01
0.1
1
10
100
1000
Reverse Current - IR ( mA )
125°C
75°C
25°C
100°C
010 20 30 40 50
Reverse Voltage -VR (V)
100
1000
10000
Junction Capacitance - C
T (pF)
TJ = 25°C
16SCYQ045C
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Fig. 5 - Max. Allowable Case Temperature Vs.
Average Forward Current (Per Leg)
Fig. 4 - Max. Thermal Impedance ZthJC 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
JDM 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)
010 20 30
Average Forward Current - I F(AV) (A)
0
20
40
60
80
100
120
140
160
180
Allowable Case Temprature - (°C)
16SCYQ045C
R thJC = 1.6°C/W
DC
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. 01/02
