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DC COMPONENTS

SMCJ28 Datasheet Preview

SMCJ28 Datasheet

TRANSIENT VOLTAGE SUPPRESSOR

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DC COMPONENTS CO., LTD.
R RECTIFIER SPECIALISTS
SMCJ5.0
THRU
SMCJ440CA
TECHNICAL SPECIFICATIONS OF TRANSIENT VOLTAGE SUPPRESSOR
VOLTAGE RANGE - 5.0 to 440Volts PEAK PULSE POWER - 1500 Watts
FEATURES
* Glass passivated junction
* 1500 Watts Peak Pulse Power capability on
10/1000 µs waveform
* Excellent clamping capability
* Low zener impedance
* Fast response time
SMC(DO-214AB)
MECHANICAL DATA
* Case: Molded plastic
* Epoxy: UL 94V-0 rate flame retardant
* Lead: MIL-STD-202E, Method 208 guaranteed
* Polarity: Color band denotes positive end (cathode)
except bidirectional types
* Mounting position: Any
* Weight: 0.21 gram
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25OC ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load,
For capacitive load, derate current by 20%.
.128(3.3)
.108(2.8)
.245(6.2)
.220(5.6)
.103(2.6)
.079(2.0)
.060(1.5)
.030(0.8)
.280(7.1)
.260(6.6)
.012(0.3)
.006(0.2)
.220(8.1)
.305(7.8)
.008(0.2)
.002(0.5)
Dimensions in inches and (millimeters)
DEVICES FOR BIPOLAR APPLICATIONS
For Bidirectional use C or CA suffix (e.g. SMCJ5.0C, SMCJ440CA).
Electrical characteristics apply in both directions
Peak Pulse Power Dissipation on 10/1000 µs waveform
(Note1,FIG.1)
Steady State Power Dissipation at T = 75OC
Lead Lengths .375"(9.5mm) (Note 2)
SYMBOL
PPPM
PM(AV)
VALUE
Minimum 1500
5.0
Peak Forward Surge Current, 8.3ms single half sine-wave
superimposed on rated load(JEDEC Method) (Note 3)
Operating and Storage Temperature Range
IFSM
TJ , TSTG
NOTES : 1. Non-repetitive current pulse, per Fig.3 and derated above TA = 25OC per Fig. 2.
2. Mounted on Copper Leaf area of 0.31 X 0.31"( 8.0 X 8.0mm ) per Fig. 5
3. 8.3ms single half sine-wave or equivalent square wave, duty cycle = 4 pulses per minute maximum.
100
-55 to + 175
UNITS
Watts
Watts
Amps
OC




DC COMPONENTS

SMCJ28 Datasheet Preview

SMCJ28 Datasheet

TRANSIENT VOLTAGE SUPPRESSOR

No Preview Available !

RATING AND CHARACTERISTIC CURVES (SMCJ5.0 THRU SMCJ440CA)
FIG. 1 - PEAK PULSE POWER RATING CURVE
100
Non-Repetitive
Pulse Waveform
Shown in Fig.3
TA = 25OC
10
1.0
0.31X0.31”(8.0X8.0mm)
copper pad areas
0.1
0.1µS 1.0µS
10µS
100µS
TP, PULSE WIDTH, sec
1.0mS
10mS
FIG. 2 - PULSE DERATING CURVE
100
75
50
25
0
0 25 50 75 100 125 150 175 200
TA, AMBIENT TEMPERATURE, (OC)
FIG. 3 - PULSE WAVEFORM
150
100
tr = 10 µsec.
Peak Value
IPPM
Pulse Width (td) is Defined
as the Point Where the Peak
Current Decays to 50% of IPPM
HALF VALUE - IPPM
2
10/1000µsec. Waveform
as Defined by R.E.A.
50
20000
10000
FIG. 4 - TYPICAL JUNCTION CAPACITANCE
f = 1.0 MHz
Vsig = 50mVp-p
TJ = 25OC
Measured at
Zero Bias
5000
Measured at
Stand off
Voltage, VWM
100
td
0
0 1.0
2.0
t, TIME, mS
3.0
4.0
10
1.0
10 100
V(BR), BREAKDOWN VOLTAGE, VOLTS
200
FIG. 5 - MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT UNIDIRECTIONAL
200
8.3ms Single Half Sine-Wave
(JEDEC Method)
100
0
1 10 100
NUMBER OF CYCLES AT 60 Hz
DC COMPONENTS CO., LTD.
R


Part Number SMCJ28
Description TRANSIENT VOLTAGE SUPPRESSOR
Maker DC COMPONENTS
Total Page 5 Pages
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