SMCJ18A

A Transient Voltage Suppressor (TVS) is a circuit protection component that attenuates or filters transient voltage spikes (overvoltage). Upon surge arrival, it undergoes avalanche breakdown within a few nanoseconds, redirecting surge current to ground and clamping the voltage within a safe range, thereby providing highly effective voltage protection. Transient Voltage Suppressor (TVS) is a circuit protection component that either attenuates (reduces) or filters a transient voltage spike (overvoltage), TVS diodes provide critical protection by going into avalanche breakdown within no more than a few nanoseconds after a strike, clamping the transient voltage, and routing its current to the ground.

Applications

• Communication Equipment
• Security & Protection
• Industrial Control Equipment
• Power Supply
• Automotive Electronics
• New Energy
• Lightning Protection

Key features

• Low incremental surge resistance
• Excellent clamping capability
• Low profile compact package with built-in strain relief
• Typical IR less than 1.0 μA above 12 V
• 1500 W peak pulse power with 10/1000 μS waveform, repetition rate 0.01%
• Surface mount application, space-saving
• Typical failure mode is short circuit from over-voltage or over-current
• IEC 61000-4-2 ESD 30 kV (Air), 30 kV (Contact)
• EFT protection of data lines per IEC 61000-4-4
• Very fast response time
• Glass passivated junction
• High temperature reflow soldering guaranteed: 260 °C/30 s
• Typical temperature coefficient 0.1%
• Plastic package flammability rated V-0
• Moisture sensitivity meets MSL Level 1
• Matte tin lead-free plated terminals
• Halogen free and RoHS compliant
• Pb-free E3: 2nd level interconnect is Pb-free, terminal finish is tin (Sn) (IPC/JEDEC J-STD-609A.01)
• Low incremental surge resistance
• Excellent clamping capability
• Low profile package with built-in strain relief
• Typical IR less than 1.0 μA above 12 V
• 1500 W peak pulse power capability with a 10/1000 μS Waveform, repetition rate (duty cycle): 0.01%
• For surface mounted applications to optimize board space
• Typical failure mode is short from over-specified voltage or current
• IEC 61000-4-2 ESD 30 kV (Air), 30 kV (Contact)
• EFT protection of data lines in accordance with IEC 61000-4-4
• Very fast response time
• Glass passivated chip junction
• High temperature to reflow soldering guaranteed: 260 °C/30sec
• VBR(+TJ)=VBR(÷S)°C×(1+αT×(TJ - 25)) (αT:Temperature Coefficient, typical value is 0.1% )
• Plastic package is flammability rated V-0 per Underwriters Laboratories
• Meet MSL level1, per J-STD-020
• Matte tin lead–free plated
• Halogen free and RoHS compliant
• Pb-free E3 means 2nd level interconnect is Pb-free and the terminal finish material is tin(Sn) (IPC/JEDEC J-STD-609A.01)