Document Number: 93961 For technical questions, contact: diodes-tech@vishay.com www.vishay.com
Revision: 21-Aug-08 1
Schottky Rectifier, 2 x 15 A
32CTQ...S/32CTQ...-1
Vishay High Power Products
FEATURES
• 150 °C TJ operation
• Low forward voltage drop
• High frequency operation
• High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
• Guard ring for enhanced ruggedness and long term
reliability
• Designed and qualified for Q101 level
DESCRIPTION
The 32CTQ... Schottky rectifier series has been optimized
for low reverse leakage at high temperature. The proprietary
barrier technology allows for reliable operation up to 150 °C
junction temperature. Typical applications are in switching
power supplies, converters, freewheeling diodes, and
reverse battery protection.
PRODUCT SUMMARY
IF(AV) 2 x 15 A
VR25/30 V
32CTQ...S
Base
common
cathode
D
2
PAK TO-262
32CTQ...-1
Anode Anode
Common
cathode
13
2
2
Base
common
cathode
Anode Anode
Common
cathode
13
2
2
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL CHARACTERISTICS VALUES UNITS
IF(AV) Rectangular waveform 30 A
VRRM 25/30 V
IFSM tp = 5 µs sine 900 A
VF15 Apk, TJ = 125 °C 0.40 V
TJRange - 55 to 150 °C
VOLTAGE RATINGS
PARAMETER SYMBOL 32CTQ025S
32CTQ025-1
32CTQ030S
32CTQ030-1 UNITS
Maximum DC reverse voltage VR25 30 V
Maximum working peak reverse voltage VRWM
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum average forward current
See fig. 5 IF(AV) 50 % duty cycle at TC = 115 °C, rectangular waveform 30
A
Maximum peak one cycle non-repetitive
surge current
See fig. 7
IFSM
5 µs sine or 3 µs rect. pulse Following any rated load
condition and with rated
VRRM applied
900
10 ms sine or 6 ms rect. pulse 250
Non-repetitive avalanche energy EAS TJ = 25 °C, IAS = 1.20 A, L = 11.10 mH 13 mJ
Repetitive avalanche current IAR
Current decaying linearly to zero in 1 µs
Frequency limited by TJ maximum VA = 1.5 x VR typical 3A
www.vishay.com For technical questions, contact: diodes-tech@vishay.com Document Number: 93961
2Revision: 21-Aug-08
32CTQ...S/32CTQ...-1
Vishay High Power Products Schottky Rectifier, 2 x 15 A
Note
(1) Pulse width < 300 µs, duty cycle < 2 %
ELECTRICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum forward voltage drop
See fig. 1 VFM (1)
15 A TJ = 25 °C 0.49
V
30 A 0.58
15 A TJ = 125 °C 0.40
30 A 0.53
Maximum reverse leakage current
See fig. 2 IRM (1) TJ = 25 °C VR = Rated VR
1.75 mA
TJ = 125 °C 97
Threshold voltage VF(TO) TJ = TJ maximum 0.233 V
Forward slope resistance rt9.09 mΩ
Maximum junction capacitance per leg CTVR = 5 VDC (test signal range 100 kHz to 1 MHz) 25 °C 1300 pF
Typical series inductance per leg LSMeasured lead to lead 5 mm from package body 8.0 nH
Maximum voltage rate of change dV/dt Rated VR10 000 V/µs
THERMAL - MECHANICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum junction and storage
temperature range TJ, TStg - 55 to 150 °C
Maximum thermal resistance,
junction to case per leg RthJC DC operation
See fig. 4 3.25
°C/W
Typical thermal resistance,
case to heatsink RthCS Mounting surface, smooth and greased 0.50
Approximate weight 2g
0.07 oz.
Mounting torque minimum 6 (5) kgf ⋅ cm
(lbf ⋅ in)
maximum 12 (10)
Marking device
Case style D2PAK 32CTQ025S
32CTQ030S
Case style TO-262 32CTQ025-1
32CTQ030-1
Document Number: 93961 For technical questions, contact: diodes-tech@vishay.com www.vishay.com
Revision: 21-Aug-08 3
32CTQ...S/32CTQ...-1
Schottky Rectifier, 2 x 15 A Vishay High Power Products
Fig. 1 - Maximum Forward Voltage Drop Characteristics Fig. 2 - Typical Values of Reverse Current vs.
Reverse Voltage
Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage
Fig. 4 - Maximum Thermal Impedance ZthJC Characteristics
1
100
10
1000
I
F
- Instantaneous Forward Current (A)
V
FM
- Forward Voltage Drop (V)
1.4 1.8
1.6
0.20 0.4 0.6 0.8 1.0 1.2
TJ = 150 °C
TJ = 125 °C
TJ = 25 °C
0.001
1
10
100
0.1
0.01
1000
I
R
- Reverse Current (mA)
V
R
- Reverse Voltage (V)
1051520
30
25
0
TJ = 150 °C
TJ = 125 °C
TJ = 100 °C
TJ = 75 °C
TJ = 50 °C
TJ = 25 °C
100
1000
10 000
C
T
- Junction Capacitance (pF)
V
R
- Reverse Voltage (V)
105 152025 35
30
0
TJ = 25 °C
0.001
0.01
0.1
1
10
0.00001 0.0001 0.001 0.01 0.1 1
t1 - Rectangular Pulse Duration (s)
ZthJC - Thermal Impedance (°C/W)
10
Single pulse
(thermal resistance)
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
PDM
t1
t2
Notes:
1. Duty factor D = t1/t2
2. Peak TJ = PDM x ZthJC + TC
www.vishay.com For technical questions, contact: diodes-tech@vishay.com Document Number: 93961
4Revision: 21-Aug-08
32CTQ...S/32CTQ...-1
Vishay High Power Products Schottky Rectifier, 2 x 15 A
Fig. 5 - Maximum Allowable Case Temperature vs.
Average Forward Current
Fig. 6 - Forward Power Loss Characteristics
Fig. 7 - Maximum Non-Repetitive Surge Current
Fig. 8 - Unclamped Inductive Test Circuit
Note
(1) Formula used: TC = TJ - (Pd + PdREV) x RthJC;
Pd = Forward power loss = IF(AV) x VFM at (IF(AV)/D) (see fig. 6);
PdREV = Inverse power loss = VR1 x IR (1 - D); IR at VR1 = 80 % rated VR
80
90
100
110
120
130
140
160
150
Allowable Case Temperature (°C)
I
F(AV)
- Average Forward Current (A)
1051520
25
0
DC
See note (1)
Square wave (D = 0.50)
80 % rated VR applied
0
2
4
6
8
10
Average Power Loss (W)
I
F(AV)
- Average Forward Current (A)
1051520
25
0
DC
RMS limit
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
100
1000
IFSM - Non-Repetitive Surge Current (A)
tp - Square Wave Pulse Duration (µs)
100 1000 10 000
10
At any rated load condition
and with rated VRRM applied
following surge
Current
monitor
High-speed
switch
D.U.T.
Rg = 25 Ω
+
Freewheel
diode Vd = 25 V
L
IRFP460
40HFL40S02
Document Number: 93961 For technical questions, contact: diodes-tech@vishay.com www.vishay.com
Revision: 21-Aug-08 5
32CTQ...S/32CTQ...-1
Schottky Rectifier, 2 x 15 A Vishay High Power Products
ORDERING INFORMATION TABLE
1- Current rating (30 A)
2- Circuit configuration:
C = Common cathode
3- T = TO-220
4- Schottky “Q” series
5- Voltage rating
6- S = D2PAK
-1 = TO-262
7- None = Tube (50 pieces)
TRL = Tape and reel (left oriented - for D2PAK only)
TRR = Tape and reel (right oriented - for D2PAK only)
8- None = Standard production
PbF = Lead (Pb)-free
Device code
51324678
32 C T Q 030 S TRL -
025 = 25 V
030 = 30 V
LINKS TO RELATED DOCUMENTS
Dimensions http://www.vishay.com/doc?95014
Part marking information http://www.vishay.com/doc?95008
Packaging information http://www.vishay.com/doc?95032
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
Disclaimer
Legal Disclaimer Notice
Vishay
All product specifications and data are subject to change without notice.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document or by any conduct of Vishay.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding
products designed for such applications.
Product names and markings noted herein may be trademarks of their respective owners.
