IF(AV) Rectangular 300 A
waveform
VRRM range 40 - 45 V
IFSM @ tp = 5 µs sine 16,000 A
VF@
150Apk, TJ=125°C 0.59 V
(per leg)
TJrange - 55 to 175 °C
Characteristics Values Units
Major Ratings and Characteristics
The 301CNQ.. center tap Schottky rectifier module series has
been optimized for low reverse leakage at high temperature.
The proprietary barrier technology allows for reliable opera-
tion up to 175 °C junction temperature. Typical applications
are in high current switching power supplies, plating power
supplies, UPS systems, converters, free-wheeling diodes,
welding, and reverse battery protection.
175 °C TJ operation
Center tap module
Low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
Lead-Free
Description/ Features
SCHOTTKY RECTIFIER 300 Amp
301CNQ...PbF SERIES
Bulletin PD-21104 12/05
1
www.irf.com
Case Styles
TO-244
BASE COMMON CATHODE
LUG
TERMINAL
ANODE 1
LUG
TERMINA
L
ANODE 2
301CNQ...PbF Series
2
Bulletin PD-21104 12/05
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IF(AV) Max. Average Forward Per Device 300 A 50% duty cycle @ TC = 81 °C, rectangular wave form
Current * See Fig. 5 Per Leg 150
IFSM Max. Peak One Cycle Non-Repetitive 16,000 5µs Sine or 3µs Rect. pulse
Surge Current (Per Leg) * See Fig. 7 3200 10ms Sine or 6ms Rect. pulse
EAS Non-Repetitive Avalanche Energy 202 mJ TJ = 25 °C, IAS
= 21 Amps, L = 1 mH
(Per Leg)
IAR Repetitive Avalanche Current 30 A Current decaying linearly to zero in 1 µsec
(Per Leg) Frequency limited by TJ max. VA = 1.5 x VR typical
Absolute Maximum Ratings
Following any rated
load condition and with
rated VRRM applied
Parameters 301CNQ Units Conditions
A
TJ = 25 °C
VR = rated VR
Electrical Specifications
VFM Max. Forward Voltage Drop 0.69 V @ 150A
(Per Leg) * See Fig. 1 (1) 0.90 V @ 300A
0.59 V @ 150A
0.76 V @ 300A
IRM Max. Reverse Leakage Current 10 mA TJ = 25 °C
(Per Leg) * See Fig. 2 (1) 90 mA TJ = 125 °C
CTMax. Junction Capacitance (Per Leg) 5200 pF VR = 5VDC (test signal range 100Khz to 1Mhz) 25°C
LSTypical Series Inductance (Per Leg) 7.0 nH From top of terminal hole to mounting plane
dv/dt Max. Voltage Rate of Change 10,000 V/ µs (Rated VR)
Parameters 301CNQ Units Conditions
TJ = 100 °C
(1) Pulse Width < 300µs, Duty Cycle <2%
Parameters Min Typ Max Units
TJMax. Junction Temperature Range - 55 - 175 °C
TStg Max. Storage Temperature Range - 55 - 175
RthJC Thermal Resistance, Junction to Case Per Leg - - 0.28 °C/W
Thermal Resistance, Junction to Case Per Module - - 0.14 K/W
RthCS Thermal Resistance, Case to Heatsink - 0.10 -
Wt Weight - 68 (2.4) - g (oz)
Mounting Torque 35.4 (4) - 53.1 (6) lbf*in
Mounting Torque Center Hole 30 (3.4) - 40 (4.6) (Nm)
Terminal Torque 30 (3.4) - 44.2 (5)
Vertical Pull - - 80 lbf.in
2 inch Lever Pull - - 35
Thermal - Mechanical Characteristics
Part number 301CNQ040PbF 301CNQ045PbF
VRMax. DC Reverse Voltage (V)
VRWM Max. Working Peak Reverse Voltage (V)
Voltage Ratings
40 45
301CNQ...PbF Series
3
Bulletin PD-21104 12/05
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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)
Forward Voltage Drop - V FM
(V)
Instantaneous Forward Current - I F (A)
Reverse Current - I R
(mA)
Reverse Voltage - V R
(V)
Reverse Voltage - V R (V)
Junction Capacitance - C T (pF)
t
1
, Rectangular Pulse Duration (Seconds)
Thermal Impedance Z thJC (°C/W)
1E-05 1E-04 1E-03 1E-02 1E-01 1E+00 1E+0
1
0.001
0.01
0.1
1
Single Pulse
(Thermal Resistance)
D = 0.20
D = 0.75
D = 0.50
D = 0.33
D = 0.25
1
10
100
1000
0.2.4.6.811.21.41.61.8
T = 175°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 4
5
T = 175°C
150°C
125°C
100°C
75°C
50°C
25°C
J
5 1015202530354045
1000
10000
Tj = 25°C
301CNQ...PbF Series
4
Bulletin PD-21104 12/05
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Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current (Per Leg)
Fig. 6 - Forward Power Loss Characteristics
(Per Leg)
Average Forward Current - IF(AV)
(A)
Allowable Case Temperature (°C)
Average Forward Current - IF
(AV) (A)
Average Power Loss (Watts)
Square Wave Pulse Duration - t p (microsec)
Non-Repetitive Surge Current - I FSM (A)
050 100 150 200 250
100
110
120
130
140
150
160
170
180
DC
Square wave (D=0.50)
80% rated Vr applied
see note (2)
Fig. 8 - Unclamped Inductive Test Circuit
FREE- W HEEL
DIODE
40HFL40S02
C URREN T
MONITOR
HIG H- SPEED
SW I TC H
IRFP460
L
DUT
Rg = 25 o hm
Vd = 25 Volt
+
(2) Formula used: TC = TJ - (Pd + PdREV) x RthJC
;
Pd = Forward Power Loss = IF(AV) x VFM @ (IF(AV) / D) (see Fig. 6);
PdREV = Inverse Power Loss = VR1 x IR (1 - D); IR @ VR1
= 80% rated VR
0
20
40
60
80
100
120
140
0 25 50 75 100 125 150 175 200 225
DC
D = 0.08
D = 0.17
D = 0.25
D = 0.33
D = 0.50
RMS Li mit
1000
10000
100000
10 100 1000 10000
At Any Rated Load Condition
And With Rated V Applied
Following Surge
RRM
301CNQ...PbF Series
5
Bulletin PD-21104 12/05
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Conforms to JEDEC Outline TO-244
Dimensions in millimeters and (inches)
Outline Table
Ordering Information Table
Device Code
1524
3
1- Average Current Rating (x 10)
2- Product Silicon Identification
3- C = Circuit Configuration
4- N = NOt Isolated
5- Q = Schottky Rectifier Diode
6- Voltage Ratings
7- Lead-Free
30 1 C N Q 045 PbF
67
040 = 40V
045 = 45V
301CNQ...PbF Series
6
Bulletin PD-21104 12/05
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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. 12/05
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.
