User Manual
MURS320
Document number: DS30197 Rev. 6 - 2
2 of 5
www.diodes.com
September 2010
© Diodes Incorporated
MURS320
Maximum Ratings @T
A
= 25°C unless otherwise specified
Single phase, half wave, 60Hz, resistive or inductive load.
For capacitance load, derate current by 20%.
Characteristic Symbol Value Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage (Note 4)
V
RRM
V
RWM
V
R
200 V
RMS Reverse Voltage
V
R
(
RMS
)
140 V
Average Rectified Output Current @ T
L
= 140°CI
O
3.0 A
Non-Repetitive Peak Forward Surge Current 8.3ms
Single Half Sine-Wave Superimposed on Rated Load
I
FSM
75 A
Thermal Characteristics
Characteristic Symbol Value Unit
Typical Total Capacitance (Note 5)
C
T
45 pF
Typical Thermal Resistance, Junction to Lead (Note 6)
R
θ
JL
11
°C/W
Operating and Storage Temperature Range
T
J
, T
STG
-65 to +175
°C
Electrical Characteristics @T
A
= 25°C unless otherwise specified
Characteristic Symbol Value Unit
Forward Voltage @ I
F
= 3.0A, T
J
=
25°C
@ I
F
= 3.0A, T
J
= 150°C
V
FM
0.875
0.71
V
Peak Reverse Current @ T
J
= 25°C
at Rated DC Blocking Voltage (Note 4) @ T
J
= 150°C
I
RM
5.0
100
μA
Reverse Recovery Time (Note 7)
t
r
r
25 ns
Maximum Forward Recovery Time (Note 8)
t
f
r
25 ns
Notes: 4. Short duration pulse test used to minimize self-heating effect.
5. Measured at 1.0MHz and applied reverse voltage of 0V DC.
6. Unit mounted on PC board with 5.0 mm
2
(0.013 mm thick) copper pads as heat sink.
7. Measured with I
F
= 0.5A, I
R
= 1.0A, I
rr
= 0.25A. See Figure 5.
8. Measured with I
F
= 1.0A, di/dt = 100A/μS, Recovery to 1.0V.
25 50 75 100 125 150 175
I, AVE
R
A
G
E
F
O
R
WA
R
D
C
U
R
R
EN
T
(A)
O
T , TERMINAL TEMPERATURE ( C)
Fig. 1 Forward Current Derating Curve
T
°
0
Fig. 2 Typical Forward Characteristics
T = 100ºC
j
T = 125ºC
j
T = 25ºC
j
Pulse Width: 300us