RATING AND CHARACTERISTIC CURVES ( SMAJ5.0A - SMAJ188CA )
FIG.1 - PULSE DERATING CURVE
6,000
FIG.2 - TYPICAL JUNCTION CAPACITANCE
PEAK PULSE POWER OR CURRENT
DERATING IN PERCENTAGE
120
C
J
, CAPACITANCE, pF
100
80
1,000
Measured at
Stand-off Voltage
Voltage V
WM
60
100
40
T
J
= 25
°
C
f = 1.0 MHz
Vsig = 50 mV
P-P
20
0
0
25
50
75
100
125
150
175
10
1
2
10
20
100
200
Ta, AMBIENT TEMPERATURE, (
°
C)
V
WM
, REVERSE STAND-OFF VOLTAGE, (V)
FIG.4 - PEAK PULSE POWER RATING CURVE
100
FIG.3 - PULSE WAVEFORM
I
PPM
, PEAK PULSE CURRENT, %
tr = 10µs
100
Peak Value
I
PPM
Ta=25
°C
Pulse Width (td) is defined
as that point where the peak
current decays to 50%
of I
PPM
P
PPM
,PEAK POWER (kW)
NON-REPETITIVE
PULSE WAVEFORM
SHOW IN FIG. 3 ,Ta=25°C
10
SMAJ5.0 -
SMAJ78A
1.0
SMAJ85 -
SMAJ188A
0.1
0.1µs
50
Half Value - I
PPM
2
10/1000
µs.
Waveform as
defined by R.E.A.
td
0
0
1.0
2.0
3.0
4.0
t, TIME(ms)
1.0µs
10µs
100µs
1.0ms
10ms
td, PULSE WIDTH, SEC
FIG.5 - MAXIMUM NON-REPETITIVE PEAK FORWARD
SURGE CURRENT
PEAK FORWARD CURRENT,
AMPERES
50
T
J
= T
J
max
8.3 ms Single half sine-wave
JEDEC Method
40
30
20
10
0
1
5
10
50
100
NUMBER OF CYCLES AT 60 Hz
Page 3 of 3
Rev.02 : February 3, 2004
SYNSEMI [ SYNSEMI, INC. ]
