Overview
The SMAJ30A/TR13, produced by YAGEO, is a Transient Voltage Suppressor (TVS) diode designed for surface-mounted applications. This component is part of the SMAJ series, which is optimized to protect electronic circuits from voltage transients and electrostatic discharges (ESD). The SMAJ30A/TR13 offers a low profile package, making it ideal for space-constrained designs while providing robust protection against transient voltages.
Key Specifications
| Rating | Symbol | Value | Units |
|---|---|---|---|
| Voltage - Reverse Standoff (Typ) | VRWM | 30V | V |
| Voltage - Breakdown (Min) | VBR | 33.3V | V |
| Voltage - Clamping (Max) @ Ipp | VC | 48.4V | V |
| Peak Pulse Power Dissipation at 10/1000μs waveform | PPPM | Minimum 400W | Watts |
| Peak Pulse Current at 10/1000μs waveform | IPPM | See Table | Amps |
| Steady State Power Dissipation at TA=50℃ | PM(AV) | 3.3W | Watts |
| Peak Forward Surge Current, 8.3ms single half sine-wave | IFSM | 40A | Amps |
| Operating Junction and Storage Temperature Range | TJ, TSTG | -55 to +150℃ | ℃ |
| Typical Thermal Resistance Junction to Lead | RθJL | 30℃/W | ℃/W |
| Typical Thermal Resistance Junction to Ambient | RθJA | 120℃/W | ℃/W |
Key Features
- Low profile package (JEDEC DO-214AC) to optimize board space
- Glass passivated junction for reliable operation
- Low inductance design
- Excellent clamping capability with 400W peak pulse power at 10/1000μs waveform
- Fast response time to transient voltages
- Typical reverse leakage current less than 1μA above 10V
- High temperature soldering capability: 260℃/10 seconds at terminals
- Plastic package with Underwriters Laboratory flammability rating 94V-0
- Meets MSL level 1, per J-STD-020
- Safety certification: UL and IEC61000-4-2 ESD 30KV Air, 30KV contact compliance
Applications
- I/O interface protection
- AC/DC power supply protection
- Low frequency signal transmission lines (e.g., RS232, RS485)
Q & A
- What is the typical reverse standoff voltage of the SMAJ30A/TR13?
The typical reverse standoff voltage (VRWM) is 30V.
- What is the minimum breakdown voltage for the SMAJ30A/TR13?
The minimum breakdown voltage (VBR) is 33.3V.
- What is the maximum clamping voltage at peak pulse current for the SMAJ30A/TR13?
The maximum clamping voltage (VC) at peak pulse current is 48.4V.
- What is the peak pulse power dissipation capability of the SMAJ30A/TR13?
The peak pulse power dissipation (PPPM) is a minimum of 400W at 10/1000μs waveform.
- What are the operating and storage temperature ranges for the SMAJ30A/TR13?
The operating and storage temperature range is -55 to +150℃.
- Is the SMAJ30A/TR13 compliant with any safety standards?
Yes, it is compliant with UL and IEC61000-4-2 ESD 30KV Air, 30KV contact standards.
- What is the typical thermal resistance junction to ambient for the SMAJ30A/TR13?
The typical thermal resistance junction to ambient (RθJA) is 120℃/W.
- What is the peak forward surge current rating for the SMAJ30A/TR13?
The peak forward surge current (IFSM) is 40A for an 8.3ms single half sine-wave.
- What are the recommended soldering conditions for the SMAJ30A/TR13?
The recommended soldering conditions include a peak temperature of 260℃ for 20-40 seconds, with specific ramp-up and ramp-down rates.
- What are the common applications for the SMAJ30A/TR13?
Common applications include I/O interface protection, AC/DC power supply protection, and low frequency signal transmission lines.
