Document
SCHOTTKY RECTIFIER
Bulletin PD-2.264 rev. D 05/02
400CNQ... SERIES
400 Amp
Major Ratings and Characteristics
Characteristics
400CNQ... Units
IF(AV) Rectangular waveform
VRRM range
400 35 to 50
IFSM @ tp = 5 µs sine
29,000
VF @200Apk, TJ=125°C (per leg)
0.52
TJ range
- 55 to 150
A V A V
°C
TO-244AB
Description/ Features
The 400CNQ center tap, high current, Schottky rectifier module 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, 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
Very low forward voltage drop High frequency operation Guard ring for enhanced ruggedness and long term reliability
COMMON CATHODE
80.01 [3.150] 40.26 [1.585] 39.75 [1.565]
2X Ø
7.49 [.295] 6.99 [.275]
23.55 [.927] 20.42 [.804]
34.925 [1.375] REF.
63.50 [2.500] 60.96 [2.400]
92.71 [3.650] 90.17 [3.550] NOTES: 1. DIMENSIONS ARE SHOWN IN MILLIMETERS [INCHES]. 2. CONTROLLING DIMENSION: MILLIMETER
Ø
10.41 9.65
[.410] [.380]
20.32 [.800] 17.78 [.700]
LUG LUG TERMINAL TERMINAL ANODE 1 ANODE 2
Ø
4.95 [.195] 4.70 [.185]
1/4-20 SLOTTED HEX
BASE COMMON CATHODE
15.75 [.620] 14.99 [.590]
3.35 [.132] 3.02 [.119]
Modified JEDEC Outline TO-244AB Dimensions in millimeters and (inches)
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400CNQ... Series
Bulletin PD-2.264 rev. D 05/02
Voltage Ratings
Part number
VR Max. DC Reverse Voltage (V) VRWM Max. Working Peak Reverse Voltage (V)
Absolute Maximum Ratings
400CNQ035 400CNQ040 400CNQ045 400CNQ050
35 40 45
50
Parameters
400CNQ Units Conditions
IF(AV) Max. Average Forward (Per Leg) Current * See Fig. 5 (Per Device)
IFSM Max. Peak One Cycle Non-Repetitive Surge Current (Per Leg) * See Fig. 7
EAS Non-RepetitiveAvalancheEnergy (Per Leg)
200 400 29,000 3400 180
A 50% duty cycle @ TC = 114 °C, rectangular wave form
5µs Sine or 3µs Rect. pulse Following any rated A load condition and with
10ms Sine or 6ms Rect. pulse rated VRRM applied mJ TJ = 25 °C, IAS = 40 Amps, L = 0.22 mH
IAR RepetitiveAvalancheCurrent (Per Leg)
Electrical Specifications
40 A Current decaying linearly to zero in 1 µsec Frequency limited by TJ max. VA = 1.5 x VR typical
Parameters
400CNQ Units Conditions
VFM Max. Forward Voltage Drop
(Per Leg) * See Fig. 1
(1)
IRM Max. Reverse Leakage Current (Per Leg) * See Fig. 2 (1)
0.57 0.73 0.52 0.68 20
1
VF(TO) Threshold Voltage rt Forward Slope Resistance CT Max. Junction Capacitance (Per Leg) LS Typical Series Inductance (Per Leg) dv/dt Max. Voltage Rate of Change
0.32 0.81 10,300 5.0 10000
(1) Pulse Width < 300µs, Duty Cycle <2%
Thermal-Mechanical Specifications
V V V V mA A
V mΩ pF nH V/ µs
@ 200A @ 400A @ 200A @ 400A TJ = 25 °C TJ = 125 °C TJ = TJ max.
TJ = 25 °C TJ = 125 °C VR = rated VR
VR = 5VDC, (test signal range 100Khz to 1Mhz) 25°C From top of terminal hole to mounting plane
(Rated VR)
Parameters
400CNQ Units Conditions
TJ Max. Junction Temperature Range Tstg Max. Storage Temperature Range
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 Base
Min.
Max.
Mounting Torque Center Hole Typ.
Terminal Torque
Min.
Max.
Case Style
-55 to 150 -55 to 150
0.20
°C °C °C/W DCoperation
* See Fig. 4
0.10 °C/W DCoperation
0.10 °C/W Mounting surface , smooth and greased
79 (2.80) g (oz.)
24 (20)
35 (30) 13.5 (12) 35 (30)
Kg-cm (Ibf-in)
46 (40)
TO - 244AB Modified JEDEC
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1000 100 10
T J= 150 C T J= 125 C T J= 25 C
Rev er se C urre nt - I R (m A )
400CNQ... Series
Bulletin PD-2.264 rev. D 05/02
10000
1000 100 10
T J = 150 C 125 C 100 C 75 C
1 50 C
25 C 0.1
0.01 0 5 10 15 20 25 30 35 40 45
Reverse Voltage - V R (V)
Fig. 2 - Typical Values Of Reverse Current Vs. Reverse Voltage (Per Leg)
10000
TJ= 25 C
In sta n taneous Forward C urrent - I F (A)
Jun ctio n C apacitan ce - C T (pF)
1 0 0.2 0.4 0.6 0.8 1 1.2
Forward Voltage Drop - VFM (V) Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
1
1000 0
10 20 30 40 50
Reverse Voltag e - VR (V) Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage (Per Leg)
Th ermal Im pedan ce Z thJC ( C/W )
D = 0.75
0.1
D = 0.50 D = 0.33
D = 0.25
D = 0.20
PD M
0.01
0.001 0.00001
Single Pulse (Therm al Resistance)
N o t e s:
t1 t2
1. Duty factor D = t 1/ t 2 2. Pe ak TJ = PD M x Z thJC+ T C
0.0001
0.001
0.01
0.1
1
t 1 , Rectangular Pulse Duration (Seco nds) Fig. 4 - Max. Thermal Impedance ZthJC Characteristics (Per Leg)
10
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Allow a ble C ase Tem perature - ( C ) No n-Repe titive Surge C urren t - I FSM (A)
A verag e Pow e .