SCHOTTKY RECTIFIER 30 Amp
25CTQ...
25CTQ...S
25CTQ.. -1
www.irf.com 1
Bulletin PD-20242 rev. B 07/03
IF(AV) Rectangular 30 A
waveform
VRRM range 35 to 45 V
IFSM @ tp = 5 µs sine 990 A
VF@ 15 Apk, TJ=125°C 0.50 V
(per leg)
TJrange - 55 to 150 °C
Characteristics 25CTQ Units
Major Ratings and Characteristics Description/ Features
The 25CTQ 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,
free-wheeling diodes, and reverse battery protection.
150° C TJ operation
Center tap TO-220 package
High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
Very low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
IF(AV) = 30Amp
VR = 35 to 45V
Case Styles
25CTQ... 25CTQ... S 25CTQ... -1
TO-220 D2PAK
Anode
13
2
Base
Common
Cathode
2
A
node
Common
Cathode
TO-262
Anode
13
2
Base
Common
Cathode
2
A
node
Common
Cathode
Anode
13
2
Base
Common
Cathode
2
A
node
Common
Cathode
25CTQ... Series
2
Bulletin PD-20242 rev. B 07/03
www.irf.com
IF(AV) Max. Average Forward Current 30 A 50% duty cycle @ TC = 102 °C, rectangular wave form
* See Fig. 5
IFSM Max. Peak One Cycle Non-Repetitive 990 5µs Sine or 3µs Rect. pulse
Surge Current (Per Leg) * See Fig. 7 250 10ms Sine or 6ms Rect. pulse
EAS Non-Repetitive Avalanche Energy 20 mJ TJ = 25 °C, IAS
= 3 Amps, L = 4.40 mH
(Per Leg)
IAR Repetitive Avalanche Current 3 A Current decaying linearly to zero in 1 µsec
(Per Leg) Frequency limited by TJ max. VA = 1.5 x VR typical
Part number 25CTQ035 25CTQ040 25CTQ045
VRMax. DC Reverse Voltage (V)
VRWM Max. Working Peak Reverse Voltage (V) 35 40 45
TJMax. Junction Temperature Range -55 to 150 °C
Tstg Max. Storage Temperature Range -55 to 150 °C
RthJC Max. Thermal Resistance Junction 3.25 °C/W DC operation * See Fig. 4
to Case (Per Leg)
RthJC Max. Thermal Resistance Junction 1.63 °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 (0.07) g (oz.)
T Mounting Torque Min. 6 (5)
Max. 12 (10)
Thermal-Mechanical Specifications
Kg-cm
(Ibf-in)
Absolute Maximum Ratings
VFM Max. Forward Voltage Drop 0.56 V @ 15A
(Per Leg) * See Fig. 1 (1) 0.71 V @ 30A
0.50 V @ 15A
0.64 V @ 30A
IRM Max. Reverse Leakage Current 1.75 mA TJ = 25 °C
(Per Leg) * See Fig. 2 (1) 70 mA TJ = 125 °C
CTMax. Junction Capacitance(Per Leg) 900 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
VR = rated VR
(1) Pulse Width < 300µs, Duty Cycle <2%
Voltage Ratings
Parameters 25CTQ Units Conditions
Parameters 25CTQ Units Conditions
Parameters 25CTQ Units Conditions
Electrical Specifications
AFollowing any rated
load condition and with
rated VRRM applied
25CTQ... Series
3
Bulletin PD-20242 rev. B 07/03
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)
.1
1
10
100
1000
0.2.4.6.811.21.41.61.82
FM
F
Inst antaneous Forward Current - I (A)
Forward Vol tage Drop - V (V)
T = 150°C
T = 125°C
T = 25°C
J
J
J
.001
.01
.1
1
10
100
1000
0 5 10 15 20 25 30 35 40 45
R
R
125°C
100°C
75°C
50°C
25°C
Reverse Volt age - V (V)
Reverse Current - I (mA)
T = 150°C
J
100
1000
0 1020304050
T = 25°C
J
Reverse Voltage - V (V)
R
T
Juncti on Capacitance - C (pF)
.001
.01
.1
1
10
.00001 .0001 .001 .01 .1 1 10 100
D = 0.33
D = 0.50
D = 0.25
D = 0. 17
D = 0.08
1
thJC
t , Rect angular Pulse Duration (Seconds)
Thermal Impedance - Z (°C/W)
Singl e Pul se
(Thermal Resistance)
2
t
1
t
P
DM
Not es:
1. Duty factor D = t / t
2. Peak T = P x Z + T
1
JDMthJCC
2
25CTQ... Series
4
Bulletin PD-20242 rev. B 07/03
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)
100
110
120
130
140
150
160
0 5 10 15 20 2
5
DC
Allowable Case Temperature - (°C)
Average Forward Current - I (A)
F(AV)
25CTQ
R (DC) = 3. 25°C/W
thJC
0
2
4
6
8
10
12
0 2 4 6 8 10 12 14 16 18 20 22
DC
Average Power Loss - (Watt s)
F(AV)
D = 0.08
D = 0.17
D = 0.25
D = 0.33
D = 0.50
RMS Li mit
Average Forward Current - I (A)
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)
FREE- W HEEL
DIODE
40HFL40S02
C URRENT
MONITOR
HI G H- SPEED
SWITCH
IRFP460
L
DUT
Rg = 25 ohm Vd = 25 Volt
+
25CTQ... Series
5
Bulletin PD-20242 rev. B 07/03
www.irf.com
Outline Table
3.78 (0.15)
3.54 (0.14)
10.54 (0.41)
MAX.
DIA.
15.24 (0.60)
14.84 (0.58)
2.92 (0.11)
2.54 (0.10)
1
TERM 2
14.09 (0.55)
13.47 (0.53)
3.96 (0.16)
3.55 (0.14)
0.94 (0.04)
0.69 (0.03)
4.57 (0.18)
4.32 (0.17)
30.61 (0.02) MAX.
5.08 (0.20) REF.
1.32 (0.05)
1.22 (0.05)
6.48 (0.25)
6.23 (0.24)
0.10 (0.004)
1.40 (0.05)
1.15 (0.04)
2.89 (0.11)
2.64 (0.10)
1
3
2.04 (0.080) MAX.
2
2
Dimensions in millimeters and (inches)
Conform to JEDEC outline TO-220AB
2
BASE
COMMON
CATHODE
123
ANODE
COMMON
CATHODE
A
NODE
12
10.16 (0.40)
REF.
8.89 (0.35)
4.57 (0.18)
4.32 (0.17)
0.61 (0.02) MAX.
5.08 (0.20) REF.
1.32 (0.05)
1.22 (0.05)
13
6.47 (0.25)
6.18 (0.24)
93°
REF.
2.61 (0.10)
2.32 (0.09)
5.28 (0.21)
4.78 (0.19)
4.69 (0.18)
4.20 (0.16)
0.55 (0.02)
0.46 (0.02)
14.73 (0.58)
15.49 (0.61)
1.40 (0.055)
1.14 (0.045)
3X
0.93 (0.37)
0.69 (0.27)
2X
11.43 (0.45)
17.78 (0.70)
8.89 (0.35)
3.81 (0.15)
2.08 (0.08)
2X
2.54 (0.10)
2X
MINIMUM RECOMMENDED FOOTPRINT
2
Dimensions in millimeters and (inches)
Conform to JEDEC outline D2Pak (SMD-220)
2
BASE
COMMON
CATHODE
123
ANODE
COMMON
CATHODE
A
NODE
12
25CTQ... Series
6
Bulletin PD-20242 rev. B 07/03
www.irf.com
Outline Table
Dimensions in millimeters and (inches)
Modified JEDEC outline TO-262
2
BASE
COMMON
CATHODE
12 3
ANODE
COMMON
CATHODE
A
NODE
12
Marking Information
EXAMPLE: THIS IS A 25CTQ045
LOT CODE 1789
ASSEMBLED ON WW 19, 1998
IN THE ASSEMBLY LINE "C"
INTERNATIONAL
RECTIFIER
LOGO
ASSEMBLY
LOT CODE
PART NUMBER
DATE CODE
YEAR 7 = 1998
WEEK 19
LINE C
25CTQ... Series
7
Bulletin PD-20242 rev. B 07/03
www.irf.com
Ordering Information Table
Device Code
1 5243
1- Essential Part Number
2- Common Cathode
3- T = TO-220
4- Q = Schottky Q Series
5- Voltage Rating
6-S=D
2Pak
6- -1 = TO-262
25 C T Q 045 -1
6
035 = 35V
040 = 40V
045 = 45V
TRR
FEED DIRECTION
TRL
FEED DIRECTION
10.90 (0.429)
10.70 (0.421) 16.10 (0.634)
15.90 (0.626)
1.75 (0.069)
1.25 (0.049)
1.85 (0.073)
1.65 (0.065)
4.10 (0.161)
3.90 (0.153)
1.60 ( 0.063)
1.50 ( 0.059)
DIA.
1.60 (0.063)
1.50 (0.059)
DIA.
11.60 (0.457)
11.40 (0.449)
15.42 (0.609)
15.22 (0.601)
4.72 (0.186)
4.52 (0.178)
24.30 (0 .957)
23.90 (0 .941)
0.368 (0.0145)
0.342 (0.0135)
360 (1 4.173)
DIA. MAX.
26.40 (1.039)
24.40 (0.961)
13.50 (0.532)
12.80 (0.504) DIA.
60 (2.362)
DIA. MIN.
SMD-220 Tape & Reel
When ordering, indicate the part
number, part orientation, and the
quantity. Quantities are in multiples
of 800 pieces per reel for both
TRL and T RR.
Dimensions in millimeters and (inches)
Tape & Reel Information
25CTQ... Series
8
Bulletin PD-20242 rev. B 07/03
www.irf.com
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. 07/03
Data and specifications subject to change without notice.
This product has been designed and qualified for Industrial Level.
Qualification Standards can be found on IR's Web site.
25CTQ045
********************************************
* This model has been developed by *
* Wizard SPICE MODEL GENERATOR (1999) *
* (International Rectifier Corporation *
* Contain Proprietary Information *
********************************************
* SPICE Model Diode is composed by a *
* simple diode plus paralled VCG2T *
********************************************
.SUBCKT 25CTQ045 ANO CAT
D1 ANO 1 DMOD (0.07089)
*Define diode model
.MODEL DMOD D(IS=1.72789623043916E-04A,N=1.16449261507669,BV=52V,
+ IBV=0.347382965330896A,RS= 0.000623832,CJO=2.01681525450576E-08,
+ VJ=1.79426113441105,XTI=2, EG=0.778356513713514)
********************************************
*Implementation of VCG2T
VX 1 2 DC 0V
R1 2 CAT TRES 1E-6
.MODEL TRES RES(R=1,TC1=30.866905105089)
GP1 ANO CAT VALUE={-ABS(I(VX))*(EXP((((-2.873853E-03/30.86691)*((V(2,CAT)*1E6)/(I(VX)+1E-6)-
1))+1)*5.486216E-02*ABS(V(ANO,CAT)))-1)}
********************************************
.ENDS 25CTQ045
Thermal Model Subcircuit
.SUBCKT 25CTQ045 5 1
CTHERM1 5 4 4.04E-01
CTHERM2 4 3 2.01E+00
CTHERM3 3 2 8.32E+00
CTHERM4 2 1 3.80E+02
RTHERM1 5 4 1.62E+00
RTHERM2 4 3 1.22E+00
RTHERM1 3 2 3.50E-01
RTHERM1 2 1 4.34E-02
.ENDS 25CTQ045