SCHOTTKY RECTIFIER 15 Amp
15CTQ...SPbF
15CTQ... -1PbF
www.irf.com 1
Bulletin PD-21025 rev. A 06/06
Major Ratings and Characteristics
IF(AV) Rectangular 15 A
waveform
VRRM range 35 / 45 V
IFSM @ tp = 5 μs sine 810 A
VF@
7.5 Apk, TJ
= 125°C 0.51 V
(per leg)
TJrange - 55 to 150 °C
Characteristics Values Units
Description/ Features
The 15CTQ 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 applica-
tions are in switching power supplies, converters, free-wheel-
ing diodes, and reverse battery protection.
175° C TJ operation
Center tap TO-220 package
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)
IF(AV) = 15Amp
VR = 35/ 45V
Case Styles
D2PAK
15CTQ...SPbF 15CTQ...-1PbF
TO-262
Anode
13
2
Base
Common
Cathode
2
A
node
Common
Cathode
Anode
13
2
Base
Common
Cathode
2
A
node
Common
Cathode
15CTQ...SPbF, 15CTQ...-1PbF Series
2
Bulletin PD-21025 rev. A 06/06
www.irf.com
IF(AV) Max. Average Forward Current 15 A 50% duty cycle @ TC = 123°C, rectangular wave form
* See Fig. 5
IFSM Max. Peak One Cycle Non-Repetitive 810 5μs Sine or 3μs Rect. pulse
Surge Current (Per Leg) * See Fig. 7 145 10ms Sine or 6ms Rect. pulse
EAS Non-Repetitive Avalanche Energy 10 mJ TJ = 25 °C, IAS
= 1.20 Amps, L = 11.10 mH
(Per Leg)
IAR Repetitive Avalanche Current 1.5 A Current decaying linearly to zero in 1 μsec
TJMax. Junction Temperature Range -55 to 150 °C
Tstg Max. Storage Temperature Range -55 to 150 °C
RthJC Max. Thermal Resistance Junction 3.50 °C/W DC operation * See Fig. 4
to Case (Per Leg)
RthJC Max. Thermal Resistance Junction 1.75 °C/W DC operation
to Case (Per Package)
RthCS Typical Thermal Resistance, Case 0.50 °C/W Mounting surface , smooth and greased
to Heatsink
wt Approximate Weight 2 (0.07) g (oz.)
T Mounting Torque Min. 6 (5)
Max. 12 (10)
Marking Device 15CTQ...S Case style D2Pak
15CTQ...-1 Case style TO-262
Thermal-Mechanical Specifications
Kg-cm
(Ibf-in)
VFM Max. Forward Voltage Drop 0.55 V @ 7.5A
(Per Leg) * See Fig. 1 (1) 0.70 V @ 15A
0.51 V @ 7.5A
0.65 V @ 15A
IRM Max. Reverse Leakage Current 0.8 mA TJ = 25 °C
(Per Leg) * See Fig. 2 (1) 32 mA TJ = 125 °C
CTMax. Junction Capacitance (Per Leg) 400 pF VR = 5VDC (test signal range 100Khz to 1Mhz) 25°C
LSTypical Series Inductance (Per Leg) 8.0 nH Measured lead to lead 5mm from package body
dv/dt Max. Voltage Rate of Change 10000 V/ μs (Rated VR)
TJ = 25 °C
TJ = 125 °C
Electrical Specifications
(1) Pulse Width < 300μs, Duty Cycle <2%
VR = rated VR
Absolute Maximum Ratings
Following any rated
load condition and with
rated VRRM applied
Parameters 15CTQ Units Conditions
A
Part number
VRMax. DC Reverse Voltage (V)
VRWM Max. Working Peak Reverse Voltage (V)
Voltage Ratings
35 40 45
Parameters 15CTQ Units Conditions
Parameters 15CTQ Units Conditions
15CTQ035SPbF 15CTQ040SPbF 15CTQ045SPbF
15CTQ035-1PbF 15CTQ040-1PbF 15CTQ045-1PbF
15CTQ...SPbF, 15CTQ...-1PbF Series
3
Bulletin PD-21025 rev. A 06/06
www.irf.com
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage (Per Leg)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage (Per Leg)
Fig. 4 - Max. Thermal Impedance ZthJC Characteristics (Per Leg)
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
0.1
1
10
100
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
FM
F
Instantaneous Forward Current - I (A)
T = 150°C
T = 125°C
T = 25°C
J
J
J
Forward Voltage Drop - V (V)
0.001
0.01
0.1
1
10
100
0 5 10 15 20 25 30 35 40 45
R
R
125°C
100°C
75°C
50°C
25°C
Reverse Current - I (mA)
T = 150°C
J
Reverse Voltage - V (V)
0.001
0.01
0.1
1
10
0.00001 0.0001 0.001 0.01 0.1 1 10 100
D = 0.33
D = 0.50
D = 0.25
D = 0.17
D = 0.08
1
thJC
t , Rectangular Pulse Duration (Seconds)
Thermal Impedance - Z (°C/W)
Single Pulse
(Thermal Resistance)
2
t
1
t
P
DM
Not es:
1. Duty factor D = t / t
2. Pe ak T = P x Z + T
1
JDM thJC C
2
100
1000
0 1020304050
T = 25°C
J
R
T
Reverse Voltage - V (V)
Junction Capacitance - C (pF)
15CTQ...SPbF, 15CTQ...-1PbF Series
4
Bulletin PD-21025 rev. A 06/06
www.irf.com
Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current (Per Leg)
Fig. 8 - Unclamped Inductive Test Circuit
Fig. 6 - Forward Power Loss Characteristics
(Per Leg)
FREE- W HEEL
DIODE
40HFL40S02
CURRENT
MONITOR
HIG H-SPEED
SWITCH
IRFP460
L
DUT
Rg = 25 ohm Vd = 25 Volt
+
100
1000
10 100 1000 10000
FSM
p
Non-Repetitive Surge Current - I (A)
At Any Rated Load Condition
And With Rated V Applied
Following Surge
RRM
Square Wave Pulse Duration - t (microsec)
125
130
135
140
145
150
155
024681012
DC
Allowable Case Temperature - (°C)
F(AV)
15CTQ
R (DC) = 3.50°C/W
thJC
Average Forward Current - I (A)
0
1
2
3
4
5
6
7
024681012
DC
Average Power Loss - (Watts)
F(AV)
D = 0.08
D = 0.17
D = 0.25
D = 0.33
D = 0.50
RMS Limit
Average Forward Current - I (A)
15CTQ...SPbF, 15CTQ...-1PbF Series
5
Bulletin PD-21025 rev. A 06/06
www.irf.com
Modified JEDEC outline TO-262
Dimensions in millimeters and (inches)
Conform to JEDEC outline D2Pak (SMD-220)
Dimensions in millimeters and (inches)
Outlines Table
15CTQ...SPbF, 15CTQ...-1PbF Series
6
Bulletin PD-21025 rev. A 06/06
www.irf.com
ASSEMBLY
LOT CODE
INTERNATIONAL
RECTIFIER
LOGO
LOT CODE 1789
EXAMPLE:
P = LEAD-FREE
PART NUMBER
WEEK 19
DATE CODE
THIS IS A 15CTQ045-1
ASSEMBLED ON WW 19, 2002
YEAR 2 = 2002
LOT CODE 8024
ASSEMBLED ON WW 02, 2000
ASSEMBLY
LOT CODE
LOGO
INTERNATIONAL
RECTIFIER
P = LEAD-FREE
DATE CODE
YEAR 0 = 2000
WEEK 02
PART NUMBER
THIS IS A 15CTQ045S
15CTQ045S
Part Marking Information
D2PAK
TO-262
Dimensions in millimeters and (inches)
Tape & Reel Information
15CTQ...SPbF, 15CTQ...-1PbF Series
7
Bulletin PD-21025 rev. A 06/06
www.irf.com
Ordering Information Table
IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105
TAC Fax: (310) 252-7309
Visit us at www.irf.com for sales contact information. 06/06
Data and specifications subject to change without notice.
This product has been designed and qualified for Industrial Level and Lead-Free.
Qualification Standards can be found on IR's Web site.
15 C T Q 045 S TRL PbF
Device Code
15
2 4
36
1- Current Rating (15A)
2- Circuit Configuration
C = Common Cathode
3- T = TO-220
4- Schottky "Q" Series
5- Voltage Ratings
6-y S = D2Pak
y -1= TO-262
7-y none = Tube (50 pieces)
y TRL = Tape & Reel (Left Oriented - for D2Pak only)
y TRR = Tape & Reel (Right Oriented - for D2Pak only)
8-y none = Standard Production
y PbF = Lead-Free
78
035 = 35V
040 = 40V
045 = 45V
