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SMAJ7.0CA Datasheet(PDF) 1 Page - UN Semiconducctor INC

Part No. SMAJ7.0CA
Description  Surface Mount Transient Voltage Suppressors
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Maker  UNSEMI [UN Semiconducctor INC]
Homepage  http://www.unsemi.com.tw
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Surface Mount Transient Voltage Suppressors (TVS)
Revision October 18, 2013
1 / 7
@ UN Semiconductor Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.unsemi.com.tw for current information.
SMAJ Series
5.0 To 440 V
400W
UN Semiconductor Co., Ltd.
www.unsemi.com.tw
The SMAJ series is designed specifically to protect sensitive electronic
equipment from voltage transients induced by lightning and other transient
voltage events.
Uni-directional
Bi-directional
u
For surface mounted applications in order to optimize board space
u
Low leakage
u
Uni and Bidirectional unit
u
Glass passivated junction
u
Low inductance
u
Excellent clamping capability
u
400W Peak power capability at 10
× 1000µs waveform Repetition rate
(duty cycle):0.01%
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Fast response time: typically less than 1.0ps from 0 Volts to VBR min
u
Typical IR less than 5μA above 12V
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High Temperature soldering: 260
°C/40 seconds at terminals
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Typical maximum temperature coefficient
ΔV
BR = 0.1% ×
VBR@25°C× ΔT
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Plastic package has Underwriters Laboratory Flammability 94V-0
u
Matte tin lead
–free Plated
u
Halogen free and RoHS compliant
u
Typical failure mode is short from over-specified voltage or current
u
Whisker test is conducted based on JEDEC JESD201A per its table
4a and 4c
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IEC-61000-4-2 ESD 15kV(Air), 8kV (Contact)
u
ESD protection of data lines in accordance with IEC 61000-4-2
(IEC801-2)
u
EFT protection of data lines in accordance with IEC 61000-4-4
(IEC801-4)
TVS devices are ideal for the protection of I/O interfaces, VCC
bus and other vulnerable circuits used in Telecom, Computer,
Industrial and Consumer electronic applications.
Parameter
Symbol
Value
Unit
Peak Pulse Power Dissipation with a 10/1000
µs waveform (Fig.1)(Note
1), (Note 2)
PPPM
400
Watts
Peak Pulse Current with a 10/1000
µs waveform.(Note1,Fig.3)
IPP
See Next Table
Amps
Power Dissipation on Infinite Heat Sink at TL=75°C
PM(AV)
1.0
Watt
Peak Forward Surge Current, 8.3ms Single Half Sine Wave (Note 3)
IFSM
40
Amps
Maximum Instantaneous Forward Voltage at 25A for Unidirectional Only
(Note 4)
VF
3.5/5.0
Voltage
Operating junction and Storage Temperature Range.
TJ , TSTG
-55 to +150
°C
Notes:
1. Non-repetitive current pulse, per Fig. 3 and derated above TA = 25°C per Fig. 2.
2. Mounted on 5.0mm x 5.0mm (0.03mm thick) Copper Pads to each terminal.
3. 8.3ms single half sine-wave, or equivalent square wave, Duty cycle = 4 pulses per minutes maximum.
4. VF < 3.5V for VBR < 200V and VF< 6.5V for VBR > 201V.
Functional Diagram
Applications
Maximum Ratings
(TA=25℃ unless otherwise noted)
Description
Features
Bi-directional
Uni-direction
Cathode
Anode




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