Bulletin PD-2.275 rev. B 02/01
125NQ015 (R)
SCHOTTKY RECTIFIER
120 Amp
D-67
Major Ratings and Characteristics
Characteristics
I
F(AV)
Rectangular
waveform
V
RRM
I
FSM
@ tp = 5 µs sine
V
F
T
J
@120 Apk, T
J
= 75°C
range
Description/Features
The 125NQ015(R) high current Schottky rectifier module has
been optimized for ultra low forward voltage drop specifically for
the OR-ing of parallel power supplies. The proprietary barrier
technology allows for reliable operation up to 125 °C junction
temperature. Typical applications are in parallel switching
power supplies, converters, reverse battery protection, and
redundant power subsystems.
125°C T
J
operation (V
R
< 5V)
Unique high power, Half-Pak module
Optimized for OR-ing applications
Ultra low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
125NQ015(R) Units
120
15
10,800
0.33
- 55 to 125
A
V
A
V
°C
125NQ015
Lug Terminal Anode
Base Cathode
125NQ015R
Lug Terminal Cathode
Base Anode
Outline D-67 HALF PAK Module
Dimensions in millimeters and (inches)
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1
125NQ015(R)
Bulletin PD-2.275 rev. B 02/01
Voltage Ratings
Part number
V
R
Max. DC Reverse Voltage (V)
V
RWM
Max. Working Peak Reverse Voltage (V)
125NQ015(R)
15
25
Absolute Maximum Ratings
Parameters
I
F(AV)
Max. Average Forward Current
* See Fig. 5
I
FSM
E
AS
I
AR
Max. Peak One Cycle Non-Repetitive
Surge Current * See Fig. 7
Non-Repetitive Avalanche Energy
Repetitive Avalanche Current
125NQ Units
120
10,800
1700
9
2
A
Conditions
50% duty cycle @ T
C
= 71° C, rectangular wave form
5µs Sine or 3µs Rect. pulse
10ms Sine or 6ms Rect. pulse
Following any rated
load condition and
with rated V
RRM
applied
A
mJ
A
T
J
= 25 °C, I
AS
= 2 Amps, L = 4.5 mH
Current decaying linearly to zero in 1 µsec
Frequency limited by T
J
max. V
A
= 3 x V
R
typical
Electrical Specifications
Parameters
V
FM
Max. Forward Voltage Drop
* See Fig. 1
(1)
125NQ Units
0.39
0.52
0.33
0.45
V
V
V
V
mA
mA
mA
mA
pF
nH
V/ µs
@ 120A
@ 240A
@ 120A
@ 240A
T
J
= 25 °C
T
J
= 100 °C
T
J
= 100 °C
T
J
= 100 °C
Conditions
T
J
= 25 °C
T
J
= 75 °C
V
R
= rated V
R
V
R
= 12V
V
R
= 5V
I
RM
Max. Reverse Leakage Current (1)
* See Fig. 2
40
2000
1780
1080
C
T
L
S
Max. Junction Capacitance
Typical Series Inductance
7700
7.0
10,000
V
R
= 5V
DC
, (test signal range 100Khz to 1Mhz) 25 °C
From top of terminal hole to mounting plane
dv/dt Max. Voltage Rate of Change
(Rated V
R
)
Thermal-Mechanical Specifications
Parameters
T
J
T
stg
Max. Junction Temperature Range
Max. Storage Temperature Range
(1) Pulse Width < 300µs, Duty Cycle < 2%
125NQ Units
-55 to 125
-55 to 150
0.40
0.15
°C
°C
°C/W
°C/W
DCoperation
Conditions
R
thJC
Max. Thermal Resistance Junction
to Case
R
thCS
Typical Thermal Resistance, Case to
Heatsink
wt
T
Approximate Weight
MountingTorque
TerminalTorque
Case Style
Min.
Max.
Min.
Max.
* See Fig. 4
Mounting surface , smooth and greased
25.6 (0.9) g (oz.)
40 (35)
58 (50)
58 (50)
86 (75)
HALF PAK Module
Non-lubricated threads
Kg-cm
(Ibf-in)
2
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125NQ015(R)
Bulletin PD-2.275 rev. B 02/01
10
00
100
00
R v rs C rre t - I ( A
ee e u n
m)
R
10
00
T =1 0 C
0°
J
7°
5C
10
0
5°
0C
2°
5C
In ta ta e u F rw rdC rre t - IF (A
s n nos o a
u n
)
10
0
1
0
1
0
5
1
0
5
1
R v rs V lta e- V (V
ee e o g
R )
T =1 0 C
0°
J
T= 7°
5C
J
1
0
J n tio C p c n e- C (p )
u c n a a ita c
F
T
T= 2°
5C
J
Fig. 2 - Typical Values of Reverse Current
Vs. Reverse Voltage
100
00
T =2 °
5C
J
1
0
.1
.2
.3
.4
.5
.6
.7
.8
10
00
0
5
1
0
1
5
2
0
2
5
3
0
F rw rdV lta eD p- V M )
o a
o g ro
F (V
R v rs V lta e- V (V
ee e o g
)
R
Fig. 1 - Maximum Forward Voltage Drop Characteristics
1
T e a Im e a c - Zth C (° /W
h rm l p d n e
C )
J
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
D=0 0
.5
.1
D=0 3
.3
D=0 5
.2
D=0 7
.1
D=0 8
.0
.0
1
S g P ls
in le u e
(T e a R s ta c )
h rm l e is n e
.0 1
0
.0 0 1
00
.0 0
01
.0 1
0
.0
1
.1
P
M
D
t
1
t2
N te :
o s
1 D tyfa to D= t1/ t 2
. u
c r
2 P a T =P M Z
. ek J D x
+T
th C C
J
1
1
0
10
0
t , R c n u r P ls D ra n(S c n s
e ta g la u e u tio
eod)
1
Fig. 4 - Maximum Thermal Impedance Z
thJC
Characteristics
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3
125NQ015(R)
Bulletin PD-2.275 rev. B 02/01
15
0
A w b C s T m e tu - ( C
llo a le a e e p ra re ° )
10
0
9
5
9
0
8
5
8
0
7
5
0
D
C
1 5 Q1
2N 05
R J (D ) =0 0 C
.4 ° /W
th C C
6
0
D=0 8
.0
D=0 7
.1
5
0
D=0 5
.2
D=0 3
.3
.5
4 D=0 0
0
3
0
2
0
1
0
0
0
R SL it
M im
D
C
2
5
5
0
7
5
10 15 10 15
0
2
5
7
A e g P w r L s - (W tts
v ra e o e o s
a )
2
5
5
0
7
5
10 15 10 15
0
2
5
7
A e g F rw rdC rre t - IF V (A
v ra e o a
u n
(A ) )
A e g F rw rdC rre t - I
v ra e o a
u n
(A
)
F V
(A )
Fig. 5 - Maximum Allowable Case Temperature
Vs. Average Forward Current
10000
FSM
Fig. 6 - Forward Power Loss Characteristics
Non-Repetitive Surge Current - I
(A)
At Any Rated Load Condition
And With Rated V
RRM
Applied
Following Surge
1000
10
100
1000
10000
Square Wave Pulse Duration - t
p
(microsec)
Fig. 7 - Maximum Non-Repetitive Surge Current
L
H IG H -SPE ED
SW IT C H
FRE E-W H EEL
D IO D E
40H FL40S02
V d = 25 V olt
D UT
IRFP460
Rg = 2 5 oh m
+
C UR RE N T
M O N ITO R
Fig. 8 - Unclamped Inductive Test Circuit
4
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