Vishay 61CTQ...PbF Series Data Sheet
TO-220AB
Schottky Rectifier, 2 x 30 A
FEATURES
• 175 °C TJ operation
Anode
Base
common
cathode
Common
1 3
cathode
2
Anode
2
• 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
61CTQ...PbF Series
Vishay High Power Products
Pb-free
Available
RoHS*
COMPLIANT
PRODUCT SUMMARY
I
F(AV)
V
R
2 x 30 A
35 to 45 V
This center tap Schottky rectifier has been optimized for low
reverse leakage at high temperature. The proprietary barrier
technology allows for reliable operation up to 175 °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
FRM
I
FSM
V
F
T
J
Rectangular waveform (per device) 60 A
35 to 45 V
TC = 142 °C (per leg) 60
tp = 5 µs sine 2600
30 Apk, TJ = 125 °C 0.57 V
Range - 65 to 175 °C
A
VOLTAGE RATINGS
PARAMETER SYMBOL 61CTQ035PbF 61CTQ040PbF 61CTQ045PbF 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
Peak repetitive forward current per leg I
Maximum peak one cycle non-repetitive
surge current per leg
Non-repetitive avalanche energy per leg E
Repetitive avalanche current per leg I
per leg
per device 60
I
F(AV)
FRM
I
FSM
AR
TC = 142 °C, rated V
Rated VR, square wave, 20 kHz, TC = 142 °C 60
5 µs sine or 3 µs rect. pulse
10 ms sine or 6 ms rect. pulse 350
TJ = 25 °C, IAS = 4 A, L = 3.4 mH 27 mJ
AS
Current decaying linearly to zero in 1 µs
Frequency limited by T
R
Following any rated load
condition and with rated
V
applied
RRM
maximum VA = 1.5 x VR typical
J
30
A
2600
4A
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 94241 For technical questions, contact: diodes-tech@vishay.com
Revision: 13-Aug-08 1
www.vishay.com
61CTQ...PbF Series
Vishay High Power Products
Schottky Rectifier, 2 x 30 A
ELECTRICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS TYP. MAX. UNITS
30 A
Maximum forward voltage drop V
FM
(1)
30 A
60 A 0.72 0.76
60 A 0.70 0.74
Maximum instantaneous reverse current I
Maximum junction capacitance C
Typical series inductance L
RM
TJ = 25 °C
T
= 125 °C 21 40
J
VR = 5 VDC (test signal range 100 kHz to 1 MHz) 25 °C 1900 pF
T
Measured from top of terminal to mounting plane 8.0 nH
S
Maximum voltage rate of change dV/dt Rated V
T
= 25 °C
J
= 125 °C
T
J
Rated DC voltage
R
0.57 0.61
0.53 0.57
0.06 1
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
Typical thermal resistance,
case to heatsink
Approximate weight
Mounting torque
minimum
maximum 12 (10)
Marking device Case style TO-220AB
T
, T
J
Stg
DC operation 1.2
R
thJC
R
thCS
Mounting surface, smooth and greased 0.50
Non-lubricated threads
- 65 to 175 °C
°C/W
2g
0.07 oz.
6 (5)
kgf · cm
(lbf · in)
61CTQ035
61CTQ040
61CTQ045
V
mA
www.vishay.com For technical questions, contact: diodes-tech@vishay.com
Document Number: 94241
2 Revision: 13-Aug-08
61CTQ...PbF Series
1000
100
10
1
- Instantaneous Forward Current (A)
F
I
Schottky Rectifier, 2 x 30 A
TJ = 175 °C
= 125 °C
T
J
= 25 °C
T
J
0.40 0.2 0.6 1.0 1.4
VFM - Forward Voltage Drop (V)
0.8
1.2
- Reverse Current (mA)
R
I
Vishay High Power Products
1000
TJ = 175 °C
100
TJ = 150 °C
10
0.1
0.01
0.001
1
10
0
TJ = 125 °C
TJ = 100 °C
TJ = 75 °C
TJ = 50 °C
TJ = 25 °C
3020
VR - Reverse Voltage (V)
40 50
Fig. 1 - Maximum Forward Voltage Drop Characteristics Fig. 2 - Typical Values of Reverse Current vs.
Reverse Voltage
10 000
1000
- Junction Capacitance (pF)
T
C
100
5
02030
10
TJ = 25 °C
2515
VR - Reverse Voltage (V)
Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage
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)
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
t1 - Rectangular Pulse Duration (s)
Fig. 4 - Maximum Thermal Impedance Z
35 40 45
Characteristics
thJC
P
DM
t
1
t
2
Notes:
1. Duty factor D = t
2. Peak TJ = PDM x Z
1
1/t2
thJC
+ T
C
10
Document Number: 94241 For technical questions, contact: diodes-tech@vishay.com
www.vishay.com
Revision: 13-Aug-08 3
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