Document
Bulletin PD-21018 rev. A 07/06
SCHOTTKY RECTIFIER
30CTQ...SPbF 30CTQ...-1PbF
30 Amp
IF(AV) = 30Amp VR = 50 - 60V
Major Ratings and Characteristics
Characteristics
Values Units
IF(AV) Rectangular waveform
VRRM
30 50 - 60
IFSM @ tp = 5 μs sine
1000
VF @15 Apk, TJ = 125°C (per leg)
0.56
TJ range
- 55 to 150
A V A V
°C
Description/ Features
This center tap Schottky rrectifier has been optimized for very low forward voltage drop, with moderate leakage. The proprietary barrier technology allows for reliable operation up to 150° C junction temperature. Typical applications are in switching power supplies, converters, free-wheeling diodes, and reverse battery protection.
150° C TJ operation Center tap configuration
Very low forward voltage drop
High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance
High frequency operation
Guard ring for enhanced ruggedness and long term reliability
Lead-Free ("PbF" suffix)
Case Styles
30CTQ...SPbF
30CTQ...-1PbF
Base Common Cathode
2
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1 Anode
2 Common Cathode
3 Anode
D2PAK
Base Common Cathode
2
1 Anode
2 Common Cathode
3 Anode
TO-262
1
30CTQ...SPbF, 30CTQ...-1PbF
Bulletin PD-21018 rev. A 07/06
Voltage Ratings
Parameters
VR Max. DC Reverse Voltage (V) VRWM Max. Working Peak Reverse Voltage (V)
Absolute Maximum Ratings
30CTQ050SPbF 30CTQ050-1PbF
50
30CTQ060SPbF 30CTQ060-1PbF
60
Parameters
Values Units
Conditions
IF(AV) Max. Average Forward (Per Leg) Current * See Fig. 5 (Per Device)
IFSM Max. Peak One Cycle Non-Repetitive Surge Current (Per Leg) * See Fig. 7
EAS Non-Repetitive Avalanche Energy (Per Leg)
IAR Repetitive Avalanche Current (Per Leg)
15 30 1000 260 13
1.50
A 50% duty cycle @ TC = 105°C, rectangular wave form
A
5μs Sine or 3μs Rect. pulse
Following any rated load condition and with
10ms Sine or 6ms Rect. pulse rated VRRM applied
mJ TJ = 25 °C, IAS = 1.50 Amps, L = 11.5 mH
A Current decaying linearly to zero in 1 μsec Frequency limited by TJ max. VA = 1.5 x VR typical
Electrical Specifications
Parameters
Values Units
Conditions
VFM Max. Forward Voltage Drop (Per Leg) * See Fig. 1 (1)
IRM Max. Reverse Leakage Current (Per Leg) * See Fig. 2 (1)
VF(TO) Threshold Voltage rt Forward Slope Resistance CT Max. Junction Capacitance (Per Leg) LS Typical Series Inductance (Per Leg) dv/dt Max. Voltage Rate of Change
0.62 0.82 0.56 0.71 0.80 45 0.39 8.47 720 8.0 10000
Thermal-Mechanical Specifications
V V V V mA mA V
mΩ pF nH V/ μs
@ 15A @ 30A @ 15A
@ 30A
TJ = 25 °C TJ = 125 °C TJ = TJ max.
TJ = 25 °C TJ = 125 °C VR = rated VR
VR = 5VDC (test signal range 100Khz to 1Mhz) 25°C Measured lead to lead 5mm from package body (Rated VR)
(1) Pulse Width < 300μs, Duty Cycle <2%
Parameters
TJ Max. Junction Temperature Range Tstg Max. Storage Temperature Range
RthJC Max. Thermal Resistance Junction to Case (Per Leg)
RthJC
Max. Thermal Resistance Junction to Case (Per Package)
RthCS Typical Thermal Resistance, Case to Heatsink
wt Approximate Weight
T Mounting Torque
Min.
Max.
Marking Device
Values Units
Conditions
-55 to 150 °C
-55 to 150 °C 3.25 °C/W DC operation
1.63 °C/W DC operation
0.50 °C/W Mounting surface , smooth and greased
2 (0.07) g (oz.)
6 (5) Kg-cm 12 (10) (Ibf-in)
30CTQ...S Case style D2Pak
30CTQ...-1 Case style TO-262
2 www.irf.com
1000
TJ = 150°C 100 TJ = 125°C
TJ = 25°C
10
Reverse Current - IR (mA)
30CTQ...SPbF, 30CTQ...-1PbF
Bulletin PD-21018 rev. A 07/06
1000
100 10 1 0.1
0.01
TJ = 150°C 125°C 100°C 75°C 50°C 25°C
0.001 0
10 20 30 40 50 60
Reverse Voltage - VR (V)
Fig. 2 - Typical Values Of Reverse Current Vs. Reverse Voltage (Per Leg)
1000
TJ = 25°C
Instanta neousForward Current - IF (A)
Junction Capacitanc e - C T (pF)
1 0 0.4 0.8 1.2 1.6 2 Forward Voltage Drop - VFM (V) Fig. 1 - Max. Forward Voltage Drop Characteristics (Per Leg)
10
100 0
10 20 30 40 50 60
Reverse Voltag e - VR (V)
Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage (Per Leg)
Thermal Impedance Z thJC (°C/ W)
1
D = 0.75
D = 0.50
0.1
D = 0.33 D = 0.25
D = 0.20
0.01 0.001
0.00001
Single Pulse (Thermal Resistance)
0.0001
0.001
0.01
PDM
Notes:
t1 t2
1. Duty fac tor D = t 1/ t 2 2. Peak TJ = PDMx ZthJC+ TC
0.1 1
10 100
t 1, Rectangular Pulse Duration (Seconds) Fig. 4 - Max. Thermal Impedance ZthJC Characteristics (Per Leg)
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3
Allowable Case Temperature - (°C) Non-Repetitive Surge Current - I FSM (A)
Average Power Loss- (Watts)
30CTQ...SPbF, 30CTQ...-1PbF
Bulletin PD-21018 rev. A 07/06
160
150
140
130 DC
120
110 100
90
Square wave (D = 0.50) 80%Ra ted VR a p plied
80
70 see note (2)
60 0 5 10 15 20 25
Average Forward Current - I F(AV) (A)
Fig. 5 - Max. Allowable Case Temperature Vs. Average Forward Current (Per Leg)
1000
14
D = 0.20
12 D = 0.25 D = 0.33
10
D = 0.50 D = 0.75
8 RMSLimit
6
DC
4
2
0 0 5 10 15 20 25
Average Forward Current - I F(AV) (A)
Fig. 6 - Forward Power Loss Characteristics (Per Leg)
.