Overview
The SMAJ85CA/TR7 is a bidirectional Transient Voltage Suppressor (TVS) diode produced by YAGEO. This component is designed for surface-mounted applications, optimizing board space with its low profile package. It features a glass passivated junction and low inductance, making it ideal for various circuit protection needs.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Voltage - Reverse Standoff (Typ) | 85 | V |
| Voltage - Breakdown (Min) | 94.4 | V |
| Voltage - Clamping (Max) @ Ipp | 137 | V |
| Peak Pulse Power Dissipation at 10/1000μs waveform | 400 | Watts |
| Peak Pulse Current at 10/1000μs waveform | 2.9 | Amps |
| Steady State Power Dissipation at TA=50℃ | 3.3 | Watts |
| Operating Junction and Storage Temperature Range | -55 to +150 | ℃ |
| Typical Thermal Resistance Junction to Ambient | 120 | ℃/W |
| Package Type | SMA/DO-214AC | |
| Soldering Temperature | 260℃/10 seconds at terminals |
Key Features
- For surface mounted applications to optimize board space
- Low profile package
- Glass passivated junction
- Low inductance
- Excellent clamping capability
- 400W peak pulse power capability at 10/1000μs waveform
- Fast response time
- Typical IR less than 1μA above 10V
- High Temperature soldering: 260℃/10 seconds at terminals
- Plastic package has Underwriters Laboratory flammability 94V-0
- Meets MSL level 1, per J-STD-020
- Safety certification: UL, 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)
- Security surveillance systems
- Telecom applications
Q & A
- What is the peak pulse power dissipation of the SMAJ85CA/TR7?
The peak pulse power dissipation is 400 Watts at a 10/1000μs waveform.
- What is the typical reverse standoff voltage for this component?
The typical reverse standoff voltage is 85V.
- What is the maximum clamping voltage at peak pulse current?
The maximum clamping voltage at peak pulse current is 137V.
- What is the operating junction and storage temperature range?
The operating junction and storage temperature range is -55 to +150℃.
- Is the SMAJ85CA/TR7 suitable for high-temperature soldering?
- What are the safety certifications for this component?
The component has UL safety certification and complies with IEC61000-4-2 ESD 30KV Air and 30KV contact standards.
- What is the package type of the SMAJ85CA/TR7?
The package type is SMA/DO-214AC.
- What are some common applications for this TVS diode?
Common applications include I/O interface protection, AC/DC power supply protection, and low frequency signal transmission lines.
- Does the SMAJ85CA/TR7 meet any specific industry standards?
- What is the typical thermal resistance junction to ambient for this component?
The typical thermal resistance junction to ambient is 120℃/W.
