Overview
The Yageo SMBJ18A/TR7 is a uni-directional transient voltage suppressor (TVS) diode designed to protect electronic circuits from voltage spikes and transient events. This component is part of the SMBJ series, known for its high reliability and robust protection capabilities. The SMBJ18A/TR7 is housed in a DO-214AA (SMB) package, making it suitable for surface mount applications where space optimization is crucial.
Key Specifications
| Attribute | Value |
|---|---|
| Clamping Voltage - Max | 29.2 V |
| Directional | Uni-Directional |
| Power Dissipation | 5 W |
| Peak Output Current | 100 A |
| Reverse Leakage Current | 1 µA |
| Peak Pulse Power | 600 W |
| Test Current | 1 mA |
| Standoff Voltage | 18 V |
| Breakdown Voltage - Max | 20 V |
| Operating Temperature Range | -65°C to +150°C |
| Storage Temperature Range | -65°C to +150°C |
| Package Style | SMB (DO-214AA) |
| Mounting Method | Surface Mount |
Key Features
- Low profile package to optimize board space
- Built-in strain relief for enhanced mechanical stability
- Glass passivated junction for high reliability
- Low inductance and excellent clamping capability
- 600 W peak pulse power capability at 10/1000 μs waveform
- Fast response time to transient voltage events
- Typical reverse leakage current less than 1 μA above 12 V
- High temperature soldering capability: 260°C/10 seconds at terminals
- Plastic package with UL flammability 94V-0 rating
- Meets MSL level 1, per J-STD-020
- Safety certification: UL and AEC-Q101 qualified
- Compliance with IEC61000-4-2 ESD 30KV Air, 30KV contact
Applications
- I/O interface protection
- AC/DC power supply protection
- Low frequency signal transmission lines (e.g., RS232, RS485)
Q & A
- What is the maximum clamping voltage of the SMBJ18A/TR7?
The maximum clamping voltage is 29.2 V.
- What is the peak pulse power dissipation of the SMBJ18A/TR7?
The peak pulse power dissipation is 600 W.
- What is the operating temperature range of the SMBJ18A/TR7?
The operating temperature range is -65°C to +150°C.
- What is the package style of the SMBJ18A/TR7?
The package style is SMB (DO-214AA).
- Is the SMBJ18A/TR7 suitable for surface mount applications?
- What is the reverse leakage current of the SMBJ18A/TR7?
The reverse leakage current is 1 µA.
- Does the SMBJ18A/TR7 meet any specific safety certifications?
- What are some common applications for the SMBJ18A/TR7?
- What is the peak pulse current of the SMBJ18A/TR7?
The peak pulse current is 100 A.
- Is the SMBJ18A/TR7 compliant with any ESD standards?
