Vishay 25CTQ...PbF Series Data Sheet
TO-220AB
Schottky Rectifier, 2 x 15 A
FEATURES
Base
common
Anode
2
cathode
2
Common
13
cathode
Anode
• 150 °C TJ operation
• Center tap TO-220 package
• 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
• Lead (Pb)-free (“PbF” suffix)
• Designed and qualified for industrial level
25CTQ...PbF Series
Vishay High Power Products
Pb-free
Available
RoHS*
COMPLIANT
PRODUCT SUMMARY
I
F(AV)
V
R
2 x 15 A
35 to 45 V
The 25CTQ...PbF center tap Schottky rectifier series 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, freewheeling diodes, and reverse battery
protection.
MAJOR RATINGS AND CHARACTERISTICS
DESCRIPTION
SYMBOL CHARACTERISTICS VALUES UNITS
I
F(AV)
V
RRM
I
FSM
V
F
T
J
Rectangular waveform 30 A
Range 35 to 45 V
tp = 5 µs sine 990 A
15 Apk, TJ = 125 °C (per leg) 0.50 V
Range - 55 to 150 °C
VOLTAGE RATINGS
PARAMETER SYMBOL 25CTQ035PbF 25CTQ040PbF 25CTQ045PbF UNITS
Maximum DC reverse voltage V
Maximum working peak reverse voltage V
R
RWM
35 40 45 V
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum average forward current
See fig. 5
Maximum peak one cycle non-repetitive
surge current per leg
See fig. 7
Non-repetitive avalanche energy per leg E
Repetitive avalanche current per leg I
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 94173 For technical questions, contact: diodes-tech@vishay.com
Revision: 13-Aug-08 1
I
F(AV)
I
FSM
AR
50 % duty cycle at TC = 102 °C, rectangular waveform 30 A
5 µs sine or 3 µs rect. pulse
10 ms sine or 6 ms rect. pulse 250
AS
TJ = 25 °C, IAS = 3.0 A, L = 4.40 mH 20 mJ
Current decaying linearly to zero in 1 µs
Frequency limited by T
maximum VA = 1.5 x VR typical
J
Following any rated load
condition and with rated
V
applied
RRM
990
A
3A
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25CTQ...PbF Series
Vishay High Power Products
Schottky Rectifier, 2 x 15 A
ELECTRICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
15 A
Maximum forward voltage drop per leg
See fig. 1
V
FM
30 A 0.71
(1)
15 A
30 A 0.64
Maximum reverse leakage current per leg
See fig. 2
I
RM
Maximum junction capacitance per leg C
Typical series inductance per leg L
TJ = 25 °C
(1)
T
= 125 °C 70
J
VR = 5 VDC (test signal range 100 kHz to 1 MHz) 25 °C 900 pF
T
Measured lead to lead 5 mm from package body 8.0 nH
S
Maximum voltage rate of change dV/dt Rated V
T
= 25 °C
J
= 125 °C
T
J
V
= Rated V
R
R
R
0.56
0.50
1.75
10 000 V/µs
Note
(1)
Pulse width < 300 µs, duty cycle < 2 %
THERMAL - MECHANICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum junction and
storage temperature range
Maximum thermal resistance,
junction to case per leg
Maximum thermal resistance,
junction to case per package
Typical thermal resistance,
case to heatsink
Approximate weight
Mounting torque
minimum 6 (5)
maximum 12 (10)
Marking device Case style TO-220AB 25CTQ045
T
, T
J
Stg
DC operation
See fig. 4
R
thJC
- 55 to 150 °C
3.25
DC operation 1.63
R
thCS
Mounting surface, smooth and greased 0.50
2.0 g
0.07 oz.
kgf · cm
(lbf · in)
V
mA
°C/W
www.vishay.com For technical questions, contact: diodes-tech@vishay.com
Document Number: 94173
2 Revision: 13-Aug-08
25CTQ...PbF Series
Schottky Rectifier, 2 x 15 A
1000
100
10
1
0.1
- Instantaneous Forward Current (A)
F
I
0.4 1.6
0.20 0.6 1.0 1.4 2.0
VFM - Forward Voltage Drop (V)
Fig. 1 - Maximum Forward Voltage Drop Characteristics
TJ = 150 °C
T
J
T
J
(Per Leg)
= 125 °C
= 25 °C
1.80.8 1.2
1000
Vishay High Power Products
1000
100
- Reverse Current (mA)
R
0.01
I
0.001
TJ = 150 °C
1
0
TJ = 125 °C
525354515
10
0.1
Fig. 2 - Typical Values of Reverse Current vs.
TJ = 100 °C
TJ = 75 °C
TJ = 50 °C
TJ = 25 °C
10 20 30 40
VR - Reverse Voltage (V)
Reverse Voltage (Per Leg)
TJ = 25 °C
- Junction Capacitance (pF)
T
C
100
10 30 40
020 50
VR - Reverse Voltage (V)
Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage (Per Leg)
10
1
0.1
0.01
- Thermal Impedance (°C/W)
thJC
Z
0.001
0.00001 0.0001 0.001 0.01 0.1
Single pulse
(thermal resistance)
t1 - Rectangular Pulse Duration (s)
Fig. 4 - Maximum Thermal Impedance Z
D = 0.50
D = 0.33
D = 0.25
D = 0.17
D = 0.08
Notes:
1. Duty factor D = t
2. Peak TJ = PDM x Z
1 10 100
Characteristics (Per Leg)
thJC
P
DM
t
1
t
2
1/t2
+ T
thJC
C
Document Number: 94173 For technical questions, contact: diodes-tech@vishay.com
www.vishay.com
Revision: 13-Aug-08 3
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