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SMCJ28A4 Datasheet Preview

SMCJ28A4 Datasheet

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS

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SMCJ28A4 pdf
LITE-ON
SEMICONDUCTOR
SMCJ SERIES
SURFACE MOUNT
UNIDIRECTIONAL AND BIDIRECTIONAL
TRANSIENT VOLTAGE SUPPRESSORS
STAND-OFF VOLTAGE - 5.0 to 220 Volts
POWER DISSIPATION - 1500 WATTS
FEATURES
For surface mounted applications
Reliable low cost construction utilizing molded plastic
technique
Plastic material has UL flammability classification 94V-O
Typical IR less than 1uA above 10V
Fast response time: typically less than 1.0ns for
Uni-direction,less than 5.0ns for Bi-direction,form 0 Volts
to BV min
B
MECHANICAL DATA
Case : Molded plastic
Polarity : by cathode band denotes uni-directional device
none cathode band denotes bi-directional device
Weight : 0.007 ounces, 0.21 gram
G
H
SMC
A
F
E
SMC
DIM. MIN. MAX.
A 6.60 7.11
C B 5.59 6.22
C 2.92 3.18
D 0.15 0.31
E 7.75 8.13
F 0.05 0.20
G 2.01 2.40
D H 0.76 1.52
All Dimensions in millimeter
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25ambient temperature unless otherwise specified.
CHARACTERISTICS
PEAK POWER DISSIPATION AT TA = 25 C,
TP = 1ms (Note 1,2)
Peak Forward Surge Current 8.3ms
single half sine-wave @ TJ =25 C
(Note 3)
Steady State Power Dissipation at TL =120 C
SYMBOLS
PPK
IFSM
PM(AV)
VALUE
1500
200
2.0
Maximum Instantaneous forward voltage
at 100A for unidirectional devices only (Note 4)
Operating Temperature Range
VF
TJ
SEE NOTE 4
-55 to +175
UNIT
WATTS
AMPS.
WATTS
Volts
C
Storage Temperature Range
TSTG
-55 to +175
C
NOTES : 1. Non-repetitive current pulse, per fig. 3 and derated above TA= 25 C per fig.1.
REV. 14, May-2013, KSIC02
2. Mounted on copper pad area of 8.0 x 8.0mm to each terminal.
3. 8.3ms single half-sine wave duty cycle= 4 pulses maximum per minute (unidirectional units only).
4. VF= 3.5V on SMCJ5.0A thru SMCJ90A devices and VF= 5.0V on SMCJ100A thru SMCJ220A devices.



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SMCJ28A4 Datasheet

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS

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SMCJ28A4 pdf
RATING AND CHARACTERISTIC CURVES
SMCJ SERIES
FIG.1 - PULSE DERATING CURVE
100
75
50
25
10 X 1000 WAVEFORM
0
0 25 50 75 100 125 150 175 200
AMBIENT TEMPERATURE, ()
FIG.2 - MAXIMUM NON-REPETITIVE SURGE CURRENT
200
100
Pulse Width 8.3ms Single
Half-Sine-Wave
10
12
5
10
20
50
NUMBER OF CYCLES AT 60Hz
100
FIG.3 - PULSE WAVEFORM
TR=10us
100 Peak value (IRSM)
Half value= IRSM
2
50
TJ=25 C
Pulse width (TP) is defined
as that point where the
peak current decays to
50% of IRSM
10 x 1000 waveform
TP
0
0 1.0 2.0 3.0 4.0
T , TIME ( ms )
10000
1000
FIG.4 - TYPICAL JUNCTION CAPACITANCE
Uni-directional
Bi-directional
100
10
1
Measured at
Zero Bias
10 100
STAND-OFF VOLTAGE, (V)
TJ = 25 C
1000
FIG.5 - PULSE RATING CURVE
100
TA=25 C
NON-REPETITIVE
10 PULSE WAVEFORM
SHOWN IN FIG 3
FIG.6 - STEADY STATE POWER DERATING CURVE
2.0
1.6
1.2
1.0
8.0mm LEAD AREAS
0.1
0.1us
1.0us
10us
100us
TP, PULSE WIDTH
1.0ms
10ms
0.8
0.4
0.0
0
60Hz RESISTIVE OR
INDUCTIVE LOAD
25 50
75 100 125 150
TL, LEAD TEMPERATURE
175 200


Part Number SMCJ28A4
Description SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS
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