Overview
The SMBJ48CA-AT/TR7 is a transient voltage suppressor (TVS) diode produced by YAGEO, designed for surface-mounted applications to optimize board space. This component is part of the SMBJ-AT series, which is known for its low profile package, built-in strain relief, and glass passivated junction. The SMBJ48CA-AT/TR7 is particularly suited for protecting electronic circuits from voltage spikes and surges, making it an essential component in various electronic systems.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Reverse Stand-Off Voltage (VRWM) | 48.0 | V |
| Breakdown Voltage (VBR) | 53.30~58.90 | V |
| Test Current (IT) | 1 | mA |
| Maximum Clamping Voltage (VC) | 77.4 | V |
| Peak Pulse Current (IPP) | See Table | A |
| Reverse Leakage Current (IR) | 1 | μA |
| Peak Pulse Power Dissipation (PPPM) | 600 | Watts |
| Peak Forward Surge Current (IFSM) | 100 | Amps |
| Operating Junction and Storage Temperature Range | -55 to +150 | °C |
| Typical Thermal Resistance Junction to Lead (RθJL) | 20 | °C/W |
| Typical Thermal Resistance Junction to Ambient (RθJA) | 100 | °C/W |
| Package Type | SMB/DO-214AA | |
| Safety Certification | UL, IEC61000-4-2 ESD 30KV Air/Contact |
Key Features
- Low profile package to optimize board space
- Built-in strain relief for enhanced durability
- Glass passivated junction for reliable performance
- Low inductance and excellent clamping capability
- 600W peak pulse power capability at 10/1000μs waveform
- Fast response time and typical IR less than 1μA above 10V
- High Temperature soldering: 260°C/10 seconds at terminals
- Plastic package with underwriters laboratory flammability 94V-0
- Meets MSL level 1, per J-STD-020
- AEC-Q101 qualified and IEC61000-4-2 ESD compliant
Applications
- I/O interface protection
- AC/DC power supply protection
- Low frequency signal transmission lines (e.g., RS232, RS485)
Q & A
- What is the primary function of the SMBJ48CA-AT/TR7?
The primary function is to protect electronic circuits from voltage spikes and surges.
- What is the reverse stand-off voltage (VRWM) of the SMBJ48CA-AT/TR7?
The VRWM is 48.0V.
- What is the peak pulse power dissipation capability of the SMBJ48CA-AT/TR7?
The component can handle up to 600W peak pulse power dissipation at a 10/1000μs waveform.
- What are the operating junction and storage temperature ranges for this component?
The ranges are -55 to +150°C.
- Is the SMBJ48CA-AT/TR7 compliant with any safety standards?
Yes, it is compliant with UL and IEC61000-4-2 ESD 30KV Air/Contact standards.
- What is the typical thermal resistance junction to ambient (RθJA) for this component?
The RθJA is 100°C/W.
- What package type does the SMBJ48CA-AT/TR7 use?
The package type is SMB/DO-214AA.
- Is the SMBJ48CA-AT/TR7 suitable for high-temperature soldering?
Yes, it can withstand high-temperature soldering at 260°C for 10 seconds at the terminals.
- What are some common applications for the SMBJ48CA-AT/TR7?
Common applications include I/O interface protection, AC/DC power supply protection, and low frequency signal transmission lines.
- Does the SMBJ48CA-AT/TR7 meet any specific industry standards?
Yes, it meets MSL level 1 per J-STD-020 and is AEC-Q101 qualified.
