SCHOTTKY RECTIFIER 150 Amp
151CMQ... SERIES
www.irf.com 1
PD-2.252 rev. A 12/97
Dimensions in millimeters and inches
Outline D-60 (Modified JEDEC TO-249AA)
CASE STYLE AND DIMENSIONS
IF(AV) Rectangular 150 A
waveform
VRRM range 35 to 45 V
IFSM @ tp = 5 µs sine 9200 A
VF@ 75Apk, TJ
= 125°C 0.65 V
(per leg)
TJrange - 55 to 175 °C
Characteristics 151CMQ... Units
Major Ratings and Characteristics The 151CMQ isolated 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 175° C junction temperature. Typical
applications are in switching power supplies, converters,
free-wheeling diodes, and reverse battery protection.
175° C TJ operation
Isolated heatsink
Center tap module
Multiple leads per terminal for high frequency, high current
PC board mounting
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
Low profile, high current package
Description/Features
151CMQ... Series
2
PD-2.252 rev. A 12/97
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TJMax. Junction Temperature Range -55 to 175 °C
Tstg Max. Storage Temperature Range -55 to 175 °C
RthJC Max. Thermal Resistance Junction 1.0 °C/W DC operation * See Fig. 4
to Case (Per Leg)
RthJC Max. Thermal Resistance Junction 0.50 °C/W DC operation
to Case (Per Package)
RthCS Typical Thermal Resistance, Case 0.10 °C/W Mounting surface , smooth and greased
to Heatsink
wt Approximate Weight 56 (2.0) g (oz.)
T Mounting Torque Min. 40 (35)
Max. 58 (50)
Case Style D-60 (TO-249AA) Modified JEDEC
Thermal-Mechanical Specifications
Kg-cm
(Ibf-in)
VFM Max. Forward Voltage Drop 0.71 V @ 75A
(Per Leg) * See Fig. 1 (1) 0.92 V @ 150A
0.65 V @ 75A
0.82 V @ 150A
IRM Max. Reverse Leakage Current 5 mA TJ = 25 °C
(Per Leg) * See Fig. 2 (1) 45 m A TJ = 125 °C
CTMax. Junction Capacitance (Per Leg) 2600 p F VR = 5VDC, (test signal range 100Khz to 1Mhz) 25°C
LSTypical Series Inductance (Per Leg) 9.2 nH Measured lead to lead 5mm from package body
dv/dt Max. Voltage Rate of Change 10,000 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 151CMQ Units Conditions
IF(AV) Max. Average Forward Current 150 A 50% duty cycle @ TC = 104 °C, rectangular wave form
* See Fig. 5
IFSM Max. Peak One Cycle Non-Repetitive 9200 5µs Sine or 3µs Rect. pulse
Surge Current (Per Leg) * See Fig. 7 1200 10ms Sine or 6ms Rect. pulse
EAS Non-Repetitive Avalanche Energy 101 mJ TJ
= 25 °C, IAS
= 15 Amps, L = 0.9 mH
(Per Leg)
IAR Repetitive Avalanche Current 15 A Current decaying linearly to zero in 1 µsec
(Per Leg) Frequency limited by TJ max. VA = 1.5 x VR typical
A
Part number 151CMQ035 151CMQ040 151CMQ045
VRMax. DC Reverse Voltage (V)
VRWM Max. Working Peak Reverse Voltage (V)
Voltage Ratings
35 40 45
Parameters 151CMQ Units Conditions
Parameters 151CMQ Units Conditions
151CMQ... Series
3
PD-2.251 rev. A 12/97
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)
.001
.01
.1
1
10
100
1000
0 5 10 15 20 25 30 35 40 45
R
R
T = 175°C
150°C
125°C
100°C
75°C
50°C
25°C
J
Reverse Voltage - V (V)
R eve rse C urrent - I (mA)
100
1000
10000
0102030405
0
T = 25°C
J
R everse V oltage - V (V)
R
T
Junction C a pacitance - C (pF )
.001
.01
.1
1
10
.00001 .0001 .001 .01 .1 1 10 10
0
D = 0.33
D = 0.50
D = 0.25
D = 0.17
D = 0.08
1
thJC
t , Rectangular Pulse Duration (Seconds)
Thermal Im peda nce - Z (°C/W)
Si n g le Pu ls e
(Thermal Resistance)
2
t
1
t
P
DM
Notes:
1. Duty factor D = t / t
2 . P e a k T = P x Z + T
1
JDMthJCC
2
1
10
100
1000
0.2.4.6.811.21.41.
6
FM
F
In stantaneous Forwa rd C urrent - I (A)
T = 175°C
T = 125°C
T = 25°C
Forw ard V olta ge D rop - V (V)
J
J
J
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
151CMQ... Series
4
PD-2.252 rev. A 12/97
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)
0
10
20
30
40
50
60
70
80
0 10203040506070809010011
0
DC
A verag e P ow er L oss - (Watts)
F(AV)
D = 0.08
D = 0.17
D = 0.25
D = 0.33
D = 0.50
RMS Limit
Average Forw a r d Cu r re nt - I ( A )
80
100
120
140
160
180
02040608010012
0
DC
Allowable Case Tempe ra ture - (°C)
A verage Forw ard Cu rren t - I ( A )
F(AV)
151CMQ
R ( DC) = 1.0°C/W
thJC
1000
10000
10 100 1000 10000
FSM
p
No n-Repet iti ve S urge Current - I (A)
A t Any Rated Load Conditi on
And With Rated V Ap plied
Following Surge
RRM
S quare Wave Pul se Durati on - t (mi crosec)
FREE-WHEEL
DIODE
40HFL40S02
CURRENT
MONITOR
HIGH-SPEED
SWITCH
IRFP460
L
DUT
Rg = 25 ohm Vd = 25 Volt
+
