3.0SMCJ SERIES
SURFACE MOUNT TRANSIENT
VOLTAGE SUPPRESSOR
CHENG- YI
ELECTRONIC
RATING AND CHARACTERISTICS CURVES
3.0SMCJ SERIES
Fig. 1 - PEAK PULSE POWER VS PULSE TIME
PEAK PULSE POWER (P
PP
) OR CURRENT (l
PP
)
DERATING PERCENTAGE %
100
100
Fig. 2 - PULSE DERATING CURVE
P
PPM
, PEAK PULSE POWER, kW
Non-Repetitive
Pulse waveform
Shown in Flgure 3
T
A
=25
0
C
10
75
50
1.0
25
0.1
0.1 s
1.0 s
10 s
100 s
1.0ms
10ms
0
0
25
50
75
100
125
150
175
200
td, PULSE WIDTH,
SEC
T
A
, AMBIENT TEMPERATURE,
0
C
Fig. 3 - PULSE WAVEFORM
150
Fig. 4 - TYPICAL CAPACIT
ANCE
VS STAND-OFF VOLTAGE
tf=10 se
Peak Value
Ippm
T
A
=25
0
C
Pulse Width (td) is Defined
as the Poitn Where the Peak
Current Decays to 50% of Ipp
I
PPM
, PEAK PULSE CURRENT, %
10
0
TJ=25C
f=1.0MHz
Vsig=50mVp-p
100
Half Value-Ipp
2
CJ, CAPACITANCE, pF
1,000
Measursd at
Zero Bias
50
10/1000 sec Waveform
as Defined by R.E.A
e-kt
td
100
Measursd at
Stand-Off
Voltage(V
MW
)
0
0
1.0
2.0
3.0
4.0
10
5.0
10
20
10
100
200
400
V(
BR
), BREAKDOWN VOLTAGE,
VOLTS
t, TIME, ms
Fig. 5 - MAXIMUM NON-REPETITIVE
PEAK FORWARD SURGE CURRENT
I
FSM
, PEAK FORWARD SURGE CURRENT
AMPERES
200
8.3ms Single Half Sine -Wave
JEDEC Method
TJ=TJ max
100
50
UNDIRECTIONAL ONLY
10
1
5
10
50
100
NUMBER OF CYCLES AT 60 Hz
CHENG-YI [ CHENG-YI ELECTRONIC CO., LTD. ]
