RATING AND CHARACTERISTIC CURVES ( SMAJ5.0A - SMAJ188CA )
FIG.1 - PULSE DERATING CURVE
FIG.2 - TYPICAL JUNCTION CAPACITANCE
6,000
1,000
120
Measured at
Stand-off Voltage
Voltage VWM
100
80
60
40
TJ = 25°C
f = 1.0 MHz
Vsig = 50 mVP-P
100
20
0
10
0
25
50
75
100
125
150
175
100 200
1
10
20
2
Ta, AMBIENT TEMPERATURE, ( °C)
VWM, REVERSE STAND-OFF VOLTAGE, (V)
FIG.3 - PULSE WAVEFORM
FIG.4 - PEAK PULSE POWER RATING CURVE
100
10
tr = 10ms
Ta=25 °C
Pulse Width (td) is defined
as that point where the peak
current decays to 50%
of IPPM
NON-REPETITIVE
PULSE WAVEFORM
SHOW IN FIG. 3 ,Ta=25°C
100
Peak Value
IPPM
SMAJ5.0 -
SMAJ78A
Half Value - IPPM
50
2
10/1000 ms. Waveform as
1.0
0.1
defined by R.E.A.
SMAJ85 -
SMAJ188A
td
0
0
1.0
2.0
3.0
4.0
0.1ms
1.0ms
10ms
100ms
1.0ms
10ms
t, TIME(ms)
td, PULSE WIDTH, SEC
FIG.5 - MAXIMUM NON-REPETITIVE PEAK FORWARD
SURGE CURRENT
50
40
TJ = TJ max
8.3 ms Single half sine-wave
JEDEC Method
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. ]
