Dimensions in millimeters and inches
Outline HALF PAK Module
CASE STYLE AND DIMENSIONS
Major Ratings and Characteristics
Description/Features
The 189NQ high current 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 T
J
operation
Unique high power, Half-Pak module
Replaces three parallel DO-5's
Easier to mount and lower profile than DO-5's
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
I
F(AV)
Rectangular
180
A
waveform
V
RRM
range
135 to 150
V
I
FSM
@ tp = 5 s sine
15000
A
V
F
@
180Apk, T
J
=125C
0.74
V
T
J
range
- 55 to 175
C
Characteristics
189NQ...
Units
SCHOTTKY RECTIFIER
180 Amp
189NQ... SERIES
PD-20720 12/99
1
www.irf.com
189NQ... Series
PD-20720 12/99
2
T
J
Max. Junction Temperature Range
-55 to 175
C
T
stg
Max. Storage Temperature Range
-55 to 175
C
R
thJC
Max. Thermal Resistance Junction
0.30
C/W
DC operation * See Fig. 4
to Case
R
thCS
Typical Thermal Resistance, Case to
0.15
C/W
Mounting surface , smooth and greased
Heatsink
wt
Approximate Weight
25.6 (0.9) g (oz.)
T
Mounting Torque
Min.
40 (35)
Non-lubricated threads
Max.
58 (50)
Terminal Torque
Min.
58 (50)
Max.
86 (75)
Case Style
HALF PAK Module
Thermal-Mechanical Specifications
Parameters
189NQ Units
Conditions
Kg-cm
(Ibf-in)
V
FM
Max. Forward Voltage Drop (1)
1.07
V
@ 180A
* See Fig. 1
1.27
V
@ 360A
0.74
V
@ 180A
0.86
V
@ 360A
I
RM
Max. Reverse Leakage Current (1)
4.5
mA
T
J
= 25 C
* See Fig. 2
65
mA
T
J
= 125 C
C
T
Max. Junction Capacitance
4500
pF
V
R
= 5V
DC
, (test signal range 100Khz to 1Mhz) 25 C
L
S
Typical Series Inductance
6.0
nH
From top of terminal hole to mounting plane
dv/dt Max. Voltage Rate of Change
10,000
V/ s
(Rated V
R
)
T
J
= 25 C
T
J
= 125 C
V
R
= rated V
R
Parameters
189NQ Units
Conditions
(1) Pulse Width < 300s, Duty Cycle < 2%
Electrical Specifications
I
F(AV)
Max. Average Forward Current
180
A
50% duty cycle @ T
C
= 110 C, rectangular wave form
* See Fig. 5
I
FSM
Max. Peak One Cycle Non-Repetitive
15000
5s Sine or 3s Rect. pulse
Surge Current * See Fig. 7
1770
10ms Sine or 6ms Rect. pulse
E
AS
Non-Repetitive Avalanche Energy
15
mJ
T
J
= 25 C, I
AS
= 1 Amps, L = 30 mH
I
A R
Repetitive Avalanche Current
1
A
Current decaying linearly to zero in 1 sec
Frequency limited by T
J
max. V
A
= 1.5 x V
R
typical
Parameters
189NQ Units
Conditions
Absolute Maximum Ratings
A
Following any rated
load condition and
with rated V
RRM
applied
Part number
189NQ135
189NQ150
V
R
Max. DC Reverse Voltage (V)
V
RWM
Max. Working Peak Reverse Voltage (V)
Voltage Ratings
135
150
189NQ... Series
PD-20720 12/99
3
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage
Fig. 1 - Max. Forward Voltage Drop Characteristics
Fig. 4 - Max. Thermal Impedance Z
thJC
Characteristics
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)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
1
10
100
1000
0
0.4
0.8
1.2
1.6
2
T = 175C
T = 125C
T = 25C
J
J
J
0.001
0.01
0.1
1
10
100
1000
0
30
60
90
120
150
150C
125C
100C
75C
50C
25C
T = 175C
J
100
1000
10000
0
30
60
90
120
T = 25C
J
0.001
0.01
0.1
1
0.00001
0.0001
0.001
0.01
0.1
1
10
100
Single Pulse
(Thermal Resistance)
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
2
t
1
t
P
DM
Notes:
1. Duty factor D = t / t
2. Peak T = P x Z + T
J
DM
thJC
C
2
1
189NQ... Series
PD-20720 12/99
4
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current
Fig. 8 - Unclamped Inductive Test Circuit
Fig. 6 - Forward Power Loss Characteristics
FREE-WHEEL
DIODE
40HFL40S02
C URRENT
MON ITOR
HIGH-SPEED
SWITCH
IRFP460
L
DUT
Rg = 25 ohm
Vd = 25 Volt
+
(2) Formula used: T
C
= T
J
- (Pd + Pd
REV
) x R
thJC
;
Pd = Forward Power Loss = I
F(AV)
x V
FM
@ (I
F(AV)
/
D) (see Fig. 6);
Pd
REV
= Inverse Power Loss = V
R1
x I
R
(1 - D); I
R
@ V
R1
= rated V
R
Average Forward Current - I
F
(AV)
(A)
Average Forward Current - I
F
(AV)
(A)
Square Wave Pulse Duration - t
p
(microsec)
Fig. 7 - Max. Non-Repetitive Surge Current
Allowable Case Temperature - (
C)
Average Power Loss - (Watts)
Non-Repetitive Surge Current - I
FSM
(A)
0
40
80
120
160
200
0
30 60 90 120 150 180 210 240 270
DC
RMS Limit
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
60
80
100
120
140
160
180
0
100
200
300
DC
see note (2)
Square wave (D = 0.50)
Rated V applied
R
1000
10000
100000
10
100
1000
10000
At Any Rated Load Condition
And With Rated V Applied
Following Surge
RRM
189NQ... Series
PD-20720 12/99
5
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