Transient Voltage Suppression Diodes
SMAJ Series 400W
Trustworthy electronic circuit protection expert
SMAJ Series
General Information
The SMA series is designed to protect voltage sensitive components from high
voltage, high energy transients. They have excellent clamping capability, high surge
capability, low zener impedance and fast response time. The SMA series is supplied
in YINT Semiconductor’s exclusive, cost-effective, highly reliable and is ideally
suited for use in communication systems, automotive, numerical controls, process
controls, medical equipment, business machines, power supplies and many other
Molded plastic
industrial/consumer Applications.
glass passivated junction.
Features
Applications
●Case: DO-214AC/SMA
TVS
●For surface mounted applications in order to optimize board space.
protection of I/O Interfaces, VCC bus
●Polarity: Color band denoted positive end (cathode) except Bidirectional.
and other vulnerable circuits used in
●Typical failure mode is short from over-specified voltage or current
Telecom,
●High Temperature soldering:260°C/10 seconds at terminals.
Consumer electronic applications.
devices
are
ideal
for
Computer, Industrial
the
and
Terminal: Solder plated, solderable per MIL-STD-750,Method 2026.
Electrical Characteristics (@ TA = 25°C Unless Otherwise Noted)
Parameter
Symbol
Minimum Peak Pulse Power Dissipation (T = 1 ms) (note 1 note 2)
Value
Unit
PPK
400
Watts
IFSM
40
Amps
PM(AV)
3.3
Watts
VF
3.5/6.5
Volts
TJ
-55 to +150
°C
TSTG
-55 to +150
°C
Peak Forward Surge Current
8.3 ms Single Half Sine Wave Superimposed on Rated Load
(JEDEC Method) (Note 3)
Steady State Power Dissipation @ TL = 75 °C
Maximum Instantaneous Forward Voltage @ I PP = 35 A
(For Unidirectional Units Only)(note 4 note 5)
Operating Temperature Range
Storage Temperature Range
1. Non-repetitive current pulse, per Pulse Waveform graph and derated above TA = 25 °C per Pulse Derating Curve.
2. Thermal Resistance Junction to Lead.
3. 8.3 ms Single Half-Sine Wave duty cycle = 4 pulses maximum per minute (unidirectional units only).
4. Single Phase, Half Wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20 %.
5.VF
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