Overview
The SMBJ40CA/TR7 is a transient voltage suppressor (TVS) produced by YAGEO, designed for surface-mounted applications to optimize board space. This component is part of the SMBJ series, which is known for its low profile package, built-in strain relief, and glass passivated junction. It is RoHS compliant and halogen-free, making it suitable for a wide range of electronic systems.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Reverse Stand-Off Voltage (VRWM) | 40.0 | V |
| Breakdown Voltage (VBR) | 44.40~49.10 | V |
| Test Current (IT) | 1 | mA |
| Maximum Clamping Voltage (VC) | 64.5 | V |
| Peak Pulse Current (IPP) | See Table | A |
| Reverse Leakage Current (IR) | 1 | μA |
| Peak Pulse Power Dissipation (PPPM) | 600 | Watts |
| 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 | JEDEC DO-214AA | |
| Terminal Material | Tin plated, solderable per MIL-STD-750, Method 2026 |
Key Features
- Low profile package to optimize board space
- Built-in strain relief
- Glass passivated junction
- Low inductance
- Excellent clamping capability
- 600W 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 with 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)
Q & A
- What is the primary function of the SMBJ40CA/TR7?
The primary function of the SMBJ40CA/TR7 is to protect electronic circuits from transient voltage surges.
- What is the peak pulse power dissipation of the SMBJ40CA/TR7?
The peak pulse power dissipation is 600 Watts at a 10/1000μs waveform.
- What is the operating junction and storage temperature range for the SMBJ40CA/TR7?
The operating junction and storage temperature range is -55 to +150°C.
- What type of package does the SMBJ40CA/TR7 use?
The SMBJ40CA/TR7 uses a JEDEC DO-214AA package.
- Is the SMBJ40CA/TR7 RoHS compliant?
- What are the safety certifications for the SMBJ40CA/TR7?
The component has safety certifications including UL and IEC61000-4-2 ESD 30KV Air, 30KV contact compliance.
- What is the typical thermal resistance junction to ambient for the SMBJ40CA/TR7?
The typical thermal resistance junction to ambient (RθJA) is 100°C/W.
- What is the maximum clamping voltage for the SMBJ40CA/TR7?
The maximum clamping voltage (VC) is 64.5 V.
- What are the common applications for the SMBJ40CA/TR7?
- How is the SMBJ40CA/TR7 packaged?
The SMBJ40CA/TR7 is packaged in a 7-inch reel (TR7).
