Westcode Semiconductors M2837V#180, M2837V#250 Data Sheet
Date:- 14 Apr, 2004
WESTCODE
An IXYS Company
Fast Recovery Diode
Types M2837V#180 to M2837V#250
Old Type No.: SM18-25CXC968
Absolute Maximum Ratings
VOLTAGE RATINGS
V
RRM
V
RSM
I
F(AV)M
I
F(AV)M
I
F(AV)M
I
F(RMS)M
I
F(d.c.)
I
FSM
I
FSM2
I2tI
I2t
T
j op
T
stg
Repetitive peak reverse voltage, (note 1) 1800-2500 V
Non-repetitive peak reverse voltage, (note 1) 1900-2600 V
OTHER RATINGS (note 6)
Maximum mean forward current, T
Maximum mean forward current. T
Maximum mean forward current. T
Maximum RMS forward current, T
D.C. forward current, T
Peak non-repetitive surge tp=10ms, VRM=60%V
Peak non-repetitive surge tp=10ms, VRM≤10V, (note 5)
2
t capacity for fusing tp=10ms, VRM=60%V
2
I
t capacity for fusing tp=10ms, VRM≤10V, (note 5)
Operating temperature range -40 to +150 °C
Storage temperature range -40 to +150 °C
=25°C, (note 4) 4630 A
sink
=55°C, (note 2) 2837 A
sink
=100°C, (note 2) 1858 A
sink
=100°C, (note 3) 1134 A
sink
=25°C, (note 2) 5296 A
sink
, (note 5) 31.8 kA
RRM
, (note 5) 5.1×10
RRM
Data Sheet Issue:- 1
MAXIMUM
LIMITS
MAXIMUM
LIMITS
35.0 kA
6
6
6.1×10
UNITS
UNITS
A2s
A2s
Notes:-
1) De-rating factor of 0.13% per °C is applicable for T
2) Double side cooled, single phase; 50Hz, 180° half-sinewave.
3) Single side cooled, single phase; 50Hz, 180° half-sinewave.
4) Double side cooled.
5) Half-sinewave, 150°C T
Data Sheet. Types M2837V#180 to M2837V#250 Issue 1 Page 1 of 11 April, 2004
initial.
j
below 25°C.
j
WESTCODE
WESTCODE An IXYS Company Fast Recovery Diode Types M2837V#180 to M2837V#250
WESTCODE WESTCODE
Characteristics
UNITS
V
mΩ
V
mA
µs
K/W
V
V
r
V
I
Q
Q
I
t
R
FM
T0
T
FRM
RRM
rr
ra
rm
rr
thJK
PARAMETER MIN. TYP. MAX. TEST CONDITIONS (Note 1)
Maximum peak forward voltage
Threshold voltage - - 0.9 V
Slope resistance - - 0.17
Maximum forward recovery voltage
Peak reverse current - - 100 Rated V
Reverse Recovery Charge - 2100 - µC
Recovered charge, 50% Chord - 1100 1450 µC
Reverse Recovery Current - 310 - A
Reverse recovery time, 50% Chord - 7 -
Thermal resistance, junction to heatsink
- - 1.41 IFM=3000A
--1.8I
=5675A
FM
- - 15 di/dt = 1000A/µs, Tj=25°C
- - 33 di/dt = 1000A/µs
RRM
I
=1000A, tp=1000µs, di/dt=60A/µs,
FM
V
=50V, 50% Chord.
r
- - 0.016 Double side cooled
- - 0.032 Single side cooled
F Mounting force 27 - 34 kN
W
Weight (note 2)
t
Notes:-
1) Unl ess otherwise indicated T
2) The out l i ne code is denoted by a ‘#’ in the part number. See ordering information f or details of outline codes.
=150°C.
j
- 1000 - Outline option VC
- 800 - Outline option VF
g
Data Sheet. Types M2837V#180 to M2837V#250 Issue 1 Page 2 of 11 April, 2004
WESTCODE
WESTCODE An IXYS Company Fast Recovery Diode Types M2837V#180 to M2837V#250
WESTCODE WESTCODE
Notes on Ratings and Characteristics
1.0 Voltage Grade Table V
Voltage Grade
18 1800 1900 1150
20 2000 2100 1250
22 2200 2300 1350
24 2400 2500 1450
25 2500 2600 1500
2.0 De-rating Factor
A blocking voltage de-rating factor of 0.13% per °C is applicable to this device for Tj below 25°C.
3.0 ABCD Constants
These constants (applicable only over current range of VF characteristic in Figure 1) are the coefficients of
the expression for the forward characteristic given below:
where IF = instantaneous forward current.
4.0 Reverse recovery ratings
RRM
(V)
V
RSM
(V)
V
dc
R
(V)
IDICIBAV ⋅+⋅+⋅+= )ln(
FFFF
(i) Qra is based on 50% Irm chord as shown in Fig.(a) below.
(ii) Qrr is based on a 150µs integration time.
s
µ
150
I.e.
(iii)
=
FactorK =
dtiQ
.
rrrr
∫
0
t
1
t
2
Data Sheet. Types M2837V#180 to M2837V#250 Issue 1 Page 3 of 11 April, 2004
WESTCODE
f
)
WESTCODE An IXYS Company Fast Recovery Diode Types M2837V#180 to M2837V#250
WESTCODE WESTCODE
5.0 Reverse Recovery Loss
The following procedure is recommended for use where it is necessary to include reverse recovery loss.
From waveforms of recovery current obtained from a high frequency shunt (see Note 1) and reverse
voltage present during recovery, an instantaneous reverse rec overy loss waveform must be constructed.
Let the area under this waveform be E joules per pulse. A new sink tem perature can then be evaluated
from:
)(
Where k = 0.2314 (°C/W)/s
E
= Area under reverse loss waveform per pulse in joules (W.s.)
= Rated frequency in Hz at the original sink temperature.
R
The total dissipation is now given by:
This device has a low reverse rec overed char ge and peak revers e rec overy current. When m easur ing the
charge, care must be taken to ensure that:
amplitude forward current.
to avoid overloading the internal amplifiers by the relatively high amplitude forward current signal.
= d.c. thermal resistance (°C/W)
th(J-Hs
originaltot
NOTE 1 - Reverse Recovery Loss by Measurement
(a) AC coupled devices such as current transformers are not affected by prior passage of high
(b) A suitable, polarised, clipping circuit must be connected to the input of the m easuring oscillosc ope
[]
fEWW
)()(
⋅+=
RfkETT ⋅+⋅−=
thJKMAXjSINK
(c) Measurement of reverse recovery waveform should be carried out with an appropriate critically
damped snubber, connected acr oss diode anode to cathode. The for mula used for the c alculation of this
snubber is shown below:
2
R
Where: Vr= Commutating source voltage
6.0 Snubber Components When selecting snubber components, care m ust be taken not to us e excessively large values of snubber
capacitor or excessively sm all values of snubber re sistor. Such exc essive com ponent values may lead to
device damage due to the large resultant values of snubber dis charge current. If required, please cons ult
the factory for assistance.
V
⋅= 4
C
R = Snubber resistance
r
di
C
⋅
dt
S
= Snubber capacitance
S
Data Sheet. Types M2837V#180 to M2837V#250 Issue 1 Page 4 of 11 April, 2004
Loading...