Overview
The SMCJ33CA/TR7, produced by YAGEO, is a Transient Voltage Suppressor (TVS) designed for surface-mounted applications to optimize board space. This component is part of the SMCJ-AT series and is engineered to provide robust protection against voltage transients and electrostatic discharges (ESD). The SMCJ33CA/TR7 is RoHS compliant and halogen-free, making it suitable for a wide range of electronic systems.
Key Specifications
| Parameter | Symbol | Value | Units |
|---|---|---|---|
| Peak Pulse Power Dissipation at 10/1000μs Waveform | PPPM | 1500 | Watts |
| Peak Pulse Current at 10/1000μs Waveform | IPPM | See Table | Amps |
| Steady State Power Dissipation at TA=50℃ | PM(AV) | 6.5 | Watts |
| Peak Forward Surge Current, 8.3ms Single Half Sine-Wave | IFSM | 200 | Amps |
| Operating Junction and Storage Temperature Range | TJ, TSTG | -55 to +150 | ℃ |
| Typical Thermal Resistance Junction to Lead | RθJL | 15 | ℃/W |
| Typical Thermal Resistance Junction to Ambient | RθJA | 75 | ℃/W |
| Reverse Stand-Off Voltage | VRWM | 33.0 | V |
| Breakdown Voltage @ IT | VBR | 36.70~40.60 | V |
| Test Current | IT | 1 | mA |
| Maximum Clamping Voltage @ IPP | VC | 53.3 | V |
| Peak Pulse Current | IPP | 28.2 | A |
| Reverse Leakage @ VRWM | IR | 1 | μA |
Key Features
- Low profile package to optimize board space.
- Built-in strain relief.
- Glass passivated junction.
- Low inductance.
- Excellent clamping capability.
- 1500W 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: E244458.
- AEC-Q101 qualified.
- 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 peak pulse power dissipation of the SMCJ33CA/TR7? The peak pulse power dissipation is 1500 Watts at a 10/1000μs waveform.
- What is the reverse stand-off voltage of the SMCJ33CA/TR7? The reverse stand-off voltage is 33.0 V.
- What is the breakdown voltage range for the SMCJ33CA/TR7? The breakdown voltage range is 36.70~40.60 V.
- What is the maximum clamping voltage at peak pulse current for the SMCJ33CA/TR7? The maximum clamping voltage is 53.3 V.
- Is the SMCJ33CA/TR7 RoHS compliant and halogen-free? Yes, it is RoHS compliant and halogen-free.
- What are the operating junction and storage temperature ranges for the SMCJ33CA/TR7? The operating junction and storage temperature ranges are -55 to +150 ℃.
- What is the typical thermal resistance junction to ambient for the SMCJ33CA/TR7? The typical thermal resistance junction to ambient is 75 ℃/W.
- Does the SMCJ33CA/TR7 meet any specific safety certifications? Yes, it meets UL: E244458 and is AEC-Q101 qualified.
- What is the ESD compliance of the SMCJ33CA/TR7? It complies with IEC61000-4-2 ESD 30KV Air, 30KV contact.
- How should the SMCJ33CA/TR7 be soldered? It should be soldered according to the recommended reflow soldering conditions, with a peak temperature of 260℃ for 20-40 seconds.
