Overview
The YAGEO SMCJ20A-AT/TR7 is a Transient Voltage Suppressor (TVS) diode designed for surface-mounted applications to optimize board space. This component is part of the SMCJ-AT series, which offers robust protection against voltage transients and surges. The SMCJ20A-AT/TR7 is specifically rated for a reverse stand-off voltage of 20V and is suitable for various electronic systems requiring high reliability and protection against electrical overstress.
Key Specifications
| Specification | Value | Units |
|---|---|---|
| Peak Pulse Power Dissipation (10/1000μs waveform) | Minimum 1500 | Watts |
| Peak Pulse Current (10/1000μs waveform) | 46.3 | Amps |
| Steady State Power Dissipation at TA=50℃ | 6.5 | Watts |
| Peak Forward Surge Current (8.3ms single half sine-wave) | 200 | Amps |
| Operating Junction and Storage Temperature Range | -55 to +150 | ℃ |
| Typical Thermal Resistance Junction to Lead | 15 | ℃/W |
| Typical Thermal Resistance Junction to Ambient | 75 | ℃/W |
| Reverse Stand-Off Voltage (VRWM) | 20 | V |
| Breakdown Voltage (VBR) | 22.2-24.5 | V |
| Maximum Clamping Voltage (VC) | 32.4 | V |
| Reverse Leakage Current (@VRWM) | <1 μA above 10V | μA |
Key Features
- Low profile package (JEDEC DO-214AB)
- Built-in strain relief
- Glass passivated junction
- Low inductance
- Excellent clamping capability
- 1500W peak pulse power capability at 10/1000μs waveform
- Fast response time
- High Temperature soldering: 260℃/10 seconds at terminals
- Plastic package with UL flammability 94V-0 rating
- Meets MSL level 1, per J-STD-020
- Safety certification: UL, IEC61000-4-2 ESD 30KV Air and contact compliance
- AEC-Q101 qualified
Applications
- I/O interface protection
- AC/DC power supply protection
- Low frequency signal transmission lines (e.g., RS232, RS485)
Q & A
- What is the peak pulse power dissipation of the SMCJ20A-AT/TR7? The peak pulse power dissipation is a minimum of 1500 Watts at a 10/1000μs waveform.
- What is the maximum clamping voltage of this TVS diode? The maximum clamping voltage is 32.4V.
- What is the operating junction and storage temperature range? The operating junction and storage temperature range is -55 to +150℃.
- Is the SMCJ20A-AT/TR7 AEC-Q101 qualified? Yes, it is AEC-Q101 qualified.
- What are the recommended soldering conditions for this component? The recommended soldering conditions include a peak temperature of 260℃, with specific ramp-up and ramp-down rates, and time within 5℃ of the actual peak temperature.
- What is the typical thermal resistance junction to ambient for this TVS diode? The typical thermal resistance junction to ambient is 75℃/W.
- What are the common applications of the SMCJ20A-AT/TR7? Common applications include I/O interface protection, AC/DC power supply protection, and low frequency signal transmission lines.
- Does the SMCJ20A-AT/TR7 meet any specific safety certifications? Yes, it meets UL safety certification and IEC61000-4-2 ESD 30KV Air and contact compliance.
- What is the package type and weight of the SMCJ20A-AT/TR7? The package type is JEDEC DO-214AB, and the weight is approximately 0.26g.
- Is the SMCJ20A-AT/TR7 suitable for high-temperature soldering? Yes, it is suitable for high-temperature soldering up to 260℃ for 10 seconds at the terminals.
