Major Ratings and Characteristics
I
F(AV)
Rectangular 120 A
waveform
V
RRM
30 V
I
FSM
@ tp = 5 µs sine 22,500 A
V
F
@
120Apk, T
J
= 125°C 0.41 V
T
J
range - 55 to 150 °C
Characteristics 122NQ030(R) Units
The 122NQ030 (R) high current Schottky rectifier module 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 applica-
tions are in switching power supplies, converters, free-wheeling
diodes, and reverse battery protection.
150° C T
J
operation
Unique high power, Half-Pak module
Replaces two 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
Very low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
Description/Features
SCHOTTKY RECTIFIER
120 Amp
122NQ030 (R)
Bulletin PD-2.274 rev. B 03/01
1
www.irf.com
Outline D-67 HALF PAK Module
Dimensions in millimeters and (inches)
122NQ030
Lug Terminal Anode
Base Cathode
122NQ030R
Lug Terminal Cathode
Base Anode
D-67
122NQ030
Bulletin PD-2.274 rev. B 03/01
2
www.irf.com
T
J
Max. Junction Temperature Range -55 to 150 °C
T
stg
Max. Storage Temperature Range -55 to 150 °C
R
thJC
Max. Thermal Resistance Junction 0.40 °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 122NQ Units Conditions
Kg-cm
(Ibf-in)
V
FM
Max. Forward Voltage Drop (1) 0.49 V @ 120A
* See Fig. 1 0.59 V @ 240A
0.41 V @ 120A
0.54 V @ 240A
I
RM
Max. Reverse Leakage Current (1) 10 mA T
J
= 25 °C
* See Fig. 2 560 mA T
J
= 125 °C
C
T
Max. Junction Capacitance 7400 pF V
R
= 5V
DC
, (test signal range 100Khz to 1Mhz) 25 °C
L
S
Typical Series Inductance 7.0 nH From top of terminal hole to mounting plane
dv/dt Max. Voltage Rate of Change 10,000 V/ µs
(Rated V
R
)
T
J
= 25 °C
T
J
= 125 °C
V
R
= rated V
R
Parameters 122NQ Units Conditions
(1) Pulse Width < 300µs, Duty Cycle < 2%
Electrical Specifications
I
F(AV)
Max. Average Forward Current 120 A 50% duty cycle @ T
C
= 110° C, rectangular wave form
* See Fig. 5
I
FSM
Max. Peak One Cycle Non-Repetitive 22,500 5µs Sine or 3µs Rect. pulse
Surge Current * See Fig. 7 2400 10ms Sine or 6ms Rect. pulse
E
AS
Non-Repetitive Avalanche Energy 54 m J T
J
= 25 °C, I
AS
= 12 Amps, L = 0.75 mH
I
AR
Repetitive Avalanche Current 12 A Current decaying linearly to zero in 1 µsec
Frequency limited by T
J
max. V
A
= 1.5 x V
R
typical
Parameters 122NQ Units Conditions
A
Following any rated
load condition and
with rated V
RRM
applied
Part number 122NQ030
V
R
Max. DC Reverse Voltage (V)
V
RWM
Max. Working Peak Reverse Voltage (V)
30
Voltage Ratings
Absolute Maximum Ratings
122NQ030
Bulletin PD-2.274 rev. B 03/01
3
www.irf.com
Fig. 2 - Typical Values of Reverse Current
Vs. Reverse Voltage
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
Fig. 4 - Maximum Thermal Impedance Z
thJC
Characteristics
Fig. 1 - Maximum Forward Voltage Drop Characteristics
1
10
100
1000
0.1.2.3.4.5.6.7.
FM
F
Instantaneous Forward Current - I (A)
Forward Vol tage Drop - V (V)
T = 150°C
T = 125°C
T = 25°C
J
J
J
.001
.01
.1
1
.00001 .0001 .001 .01 .1 1 10 100
D = 0.33
D = 0.50
D = 0.25
D = 0.17
D = 0.08
1
thJC
t , Rectangular Pulse Duration (Seconds)
Ther mal Impedance - Z (°C/W)
Single Pulse
(Thermal Resistance)
2
t
1
t
P
DM
No t e s:
1. Duty factor D = t / t
2. Peak T = P x Z + T
1
JDMthJC
C
2
.01
.1
1
10
100
1000
10000
0 5 10 15 20 25 30
R
R
125°C
100°C
75°C
50°C
25°C
Reverse Voltage - V (V)
Reverse Current - I (mA)
T = 150°C
J
1000
10000
0 5 10 15 20 25 30 3
T = 25°C
J
Reverse Voltage - V (V)
R
T
Junction Capacitance - C (pF)
