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Bulletin PD-20581 rev. A 07/01
408CNQ060
SCHOTTKY RECTIFIER 400 Amp
TO-244AB
Major Ratings and Characteristics Characteristics
IF(AV) Rectangular waveform VRRM range IFSM VF TJ @ tp = 5 s sine @200Apk, TJ=125C (per leg) range
Description/Features
The 408CNQ center tap Schottky rectifier module series has been optimized for low reverse leakage at high temperature. The proprietary barrier technology allows for reliable operation up to 150 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. 150 C TJ operation Center tap module High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance Low forward voltage drop High frequency operation Guard ring for enhanced ruggedness and long term reliability
408CNQ... Units
400 60 25,500 0.59 - 55 to 150 A V A V C
80.01 [3.150] 40.26 [1.585] 39.75 [1.565] COMMON CATHODE
O
10.41 [.410] 9.65 [.380]
20.32 [.800] 17.78 [.700]
LUG TERMINAL ANODE 1
LUG TERMINAL ANODE 2
2X O
7.49 [.295] 6.99 [.275]
34.925 [1.375] REF. 63.50 [2.500] 60.96 [2.400]
O
4.95 [.195] 4.70 [.185]
1/4-20 SLOTTED HEX
BASE COMMON CATHODE
23.55 [.927] 20.42 [.804]
15.75 [.620] 14.99 [.590] 3.35 [.132] 3.02 [.119]
92.71 [3.650] 90.17 [3.550] NOTES: 1. DIMENSIONS ARE SHOWN IN MILLIMETERS [INCHES]. 2. CONTROLLING DIMENSION: MILLIMETER
Modified JEDEC Outline TO-244AB Dimensions in millimeters and (inches)
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408CNQ060
Bulletin PD-20581 rev. A 07/01
Voltage Ratings
Part number
VR VRWM Max. DC Reverse Voltage (V) Max. Working Peak Reverse Voltage (V)
408CNQ060
60
Absolute Maximum Ratings
Parameters
IF(AV) Max. Average Forward Current IFSM EAS IAR * See Fig. 5 (Per Leg) (Per Device)
408CNQ Units Conditions
200 400 25,500 3,300 15 1 mJ A A Following any rated 5s Sine or 3s Rect. pulse load condition and with 10ms Sine or 6ms Rect. pulse rated VRRM applied TJ = 25 C, IAS = 1 Amps, L = 30 mH Current decaying linearly to zero in 1 sec Frequency limited by TJ max. VA = 1.5 x VR typical A 50% duty cycle @ TC = 115 C, rectangular wave form
Max. Peak One Cycle Non-Repetitive Surge Current (Per Leg) * See Fig. 7 Non-Repetitive Avalanche Energy (Per Leg) Repetitive Avalanche Current (Per Leg)
Electrical Specifications
Parameters
VFM Max. Forward Voltage Drop (Per Leg) * See Fig. 1 (1)
408CNQ Units Conditions
0.68 0.83 0.59 0.76 2.2 600 11000 5.0 10000 V V V V mA mA pF nH V/ s
(1) Pulse Width < 300s, Duty Cycle <2%
@ 200A @ 400A @ 200A @ 400A TJ = 25 C TJ = 125 C
TJ = 25 C TJ = 125 C VR = rated VR
IRM CT LS
Max. Reverse Leakage Current (Per Leg) * See Fig. 2 Typical Series Inductance (1) (Per Leg) Max. Junction Capacitance (Per Leg)
VR = 5VDC, (test signal range 100Khz to 1Mhz) 25C From top of terminal hole to mounting plane
dv/dt Max. Voltage Rate of Change (Rated VR)
Thermal-Mechanical Specifications
Parameters
TJ Tstg Max. Junction Temperature Range Max. Storage Temperature Range -55 to 150 -55 to 150 0.20 0.10 0.10 C C C/W DCoperation C/W DCoperation
408CNQ Units Conditions
RthJC Max. Thermal Resistance Junction to Case (Per Leg) RthJC Max. Thermal Resistance Junction to Case (Per Package) RthCS Typical Thermal Resistance, Case to Heatsink wt Approximate Weight T Mounting Torque Min. Max. Mounting Torque Center Hole Typ. TerminalTorque Min. Max. Case Style
* See Fig. 4
C/W Mounting surface , smooth and greased
79 (2.80) g (oz.) 24(20) Kg-cm (Ibf-in) 35 (30) 13.5 (12) 35 (30) 46 (40) TO-244AB Modified JEDEC
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408CNQ060
Bulletin PD-20581 rev. A 07/01
1000
1000 100 10 1 0.1 0.01 0
T J = 150C T = 125C J T = 25C J
TJ = 150C 125C 100C 75C 50C 25C
Instantaneous Forward Current - IF (A)
100
Reverse Current - I R (mA)
10
20
30
40
50
60
Reverse Voltage - VR (V) Fig. 2 - Typical Values Of Reverse Current Vs. Reverse Voltage
100000
Junction Capacitance - CT (pF)
T = 25C J
10
10000
1
0 0.2 0.4 0.6 0.8 1 1.2 Forward Voltage Drop - VFM (V) 1.4
Fig. 1 - Max. Forward Voltage Drop Characteristics
1000 0 10 20 30 40 50 60
Reverse Voltage - VR (V) Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage
1
Thermal Impedance ZthJC (C/W)
0.1
D = 0.75 D = 0.50 D = 0.33 D = 0.25 D = 0.20
PDM
t1
0.01
Single Pulse (Thermal Resistance) Notes: 1. Duty factor D = t1/ t2
t2
2. Peak Tj = Pdm x ZthJC + Tc
.001 0.00001
0.0001
0.001
0.01
0.1
1
10
t1, Rectangular Pulse Duration (Seconds) Fig. 4 - Max. Thermal Impedance ZthJC Characteristics (Per Leg)
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408CNQ060
Bulletin PD-20581 rev. A 07/01
160
Allowable Case Temperature (C) Average Power Loss (Watts)
200 180 160 140 120 100 80 60 40 20 0
150 140
DC
D = 0.75 D = 0.50 D = 0.33 D = 0.25 D = 0.20 RMS Limit DC
130 120 110 100 90 0 50 100 150 200 250 300
Average Forward Current - I F(AV)(A) Fig. 5 - Max. Allowable Case Temperature Vs. Average Forward Current
Non-Repetitive Surge Current - I FSM (A)
Square wave (D = 0.50) 80% Rated Vr applied see note (2)
0
50
100
150
200
250
300
Average Forward Current - I F(AV) (A) Fig. 6 - Forward Power Loss Characteristics
100000
At Any Rated Load Condition And With Rated Vrrm Applied Following Surge
10000
1000 10
100
1000
10000
Square Wave Pulse Duration - tp (microsec) Fig. 7 - Max. Non-Repetitive Surge Current
L H IG H -SPE ED SW ITC H FREE-W HE EL D IO D E 40H FL40S02 V d = 25 V olt
D UT
IRFP460 Rg = 25 ohm
+
C UR RE N T M O N ITO R
Fig. 8 - Unclamped Inductive Test Circuit
(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
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408CNQ060
Bulletin PD-20581 rev. A 07/01
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.
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. 07/01
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