SMAJ SERIES
400Watts Surface Mount Transient Voltage Suppressor
SMA/DO-214AC
Features
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For surface mounted application
Low profile package
Built-in strain relief
Glass passivated junction
Excellent clamping capability
Fast response time: Typically less than 1.0ps
from 0 volt to BV min.
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Typical IR less than 1µA above 10V
High temperature soldering guaranteed:
260oC / 10 seconds at terminals
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Plastic material used carries Underwriters
Laboratory Flammability Classification 94V-0
400 watts peak pulse power capability with a 10
x 1000 us waveform by 0.01% duty cycle
(300W above 78V).
Dimensions in inches and (millimeters)
Mechanical Data
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Case: Molded plastic
Terminals: Pure tin plated lead free,
Polarity: Indicated by cathode band
Standard packaging: 12mm tape
Weight: 0.064 gram
Maximum Ratings and Electrical Characteristics
Rating at 25OC ambient temperature unless otherwise specified.
Type Number
Symbol
PPK
Value
Minimum 400
1
Units
Watts
Watts
Peak Power Dissipation at TA=25oC, Tp=1ms(Note 1)
Steady State Power Dissipation
Pd
Peak Forward Surge Current, 8.3 ms Single Half
Sine-wave Superimposed on Rated Load
(JEDEC method) (Note 2, 3)
IFSM
40.0
Amps
Maximum Instantaneous Forward Voltage at 25.0A for
Unidirectional Only
VF
3.5
Volts
oC
Operating and Storage Temperature Range
TJ, TSTG
-55 to + 150
1. Non-repetitive Current Pulse Per Fig. 3 and Derated above TA=25oC Per Fig. 2.
2. Mounted on 5.0mm2 (.013 mm Thick) Copper Pads to Each Terminal.
3. 8.3ms Single Half Sine-wave or Equivalent Square Wave, Duty Cycle=4 Pulses Per
Minute Maximum.
Notes:
Devices for Bipolar Applications
1. For Bidrectional Use C or CA Suffix for Types SMAJ5.0 through Types SMAJ188.
2. Electrical Characteristics Apply in Both Directions.
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