Overview
The SMBJ33A-TR, produced by STMicroelectronics, is a Transient Voltage Suppressor (TVS) diode designed to protect sensitive equipment against electrostatic discharges and electrical overstress. This device is part of the SMBJ series, which adheres to standards such as IEC 61000-4-2, IEC 61000-4-4, and MIL STD 883, method 3015. The SMBJ33A-TR is particularly suited for high-end equipment and Switch-Mode Power Supplies (SMPS) due to its low leakage current and high junction temperature capabilities, ensuring reliability and stability over time.
Key Specifications
| Parameter | Value |
|---|---|
| Peak Pulse Power Dissipation | 600 W (10/1000 μs), 4 kW (8/20 μs) |
| Stand-off Voltage (VRM) | 33 V |
| Maximum Clamping Voltage | 69.7 V |
| Minimum Breakdown Voltage | 36.7 V |
| Leakage Current | 0.2 μA at 25 °C, 1 μA at 85 °C |
| Operating Junction Temperature | -55 °C to 150 °C |
| Package Type | SMB (DO-214AA) |
| Pin Count | 2 |
| Product Dimensions | 4.6 x 3.95 x 2.45 mm |
| Directionality | Unidirectional |
Key Features
- High power capability: Up to 600 W (10/1000 μs) and 4 kW (8/20 μs)
- Low leakage current: 0.2 μA at 25 °C and 1 μA at 85 °C
- High junction temperature: Up to 150 °C
- Planar technology for reliability and stability in high-end equipment and SMPS
- Lead finishing: Matte tin plating
- Unidirectional and bidirectional types available in the SMBJ series
Applications
The SMBJ33A-TR is suitable for a variety of applications, including:
- Protection against electrostatic discharges and electrical overstress in sensitive equipment
- High-end equipment requiring low leakage current and high junction temperature capabilities
- Switch-Mode Power Supplies (SMPS) where reliability and stability are critical
- General surge protection in electronic circuits
Q & A
- What is the peak pulse power dissipation of the SMBJ33A-TR?
The peak pulse power dissipation is 600 W (10/1000 μs) and 4 kW (8/20 μs).
- What is the stand-off voltage (VRM) of the SMBJ33A-TR?
The stand-off voltage (VRM) is 33 V.
- What are the operating junction temperature ranges for the SMBJ33A-TR?
The operating junction temperature ranges from -55 °C to 150 °C.
- What is the leakage current of the SMBJ33A-TR at different temperatures?
The leakage current is 0.2 μA at 25 °C and 1 μA at 85 °C.
- What is the package type of the SMBJ33A-TR?
The package type is SMB (DO-214AA).
- Is the SMBJ33A-TR unidirectional or bidirectional?
The SMBJ33A-TR is unidirectional, but the SMBJ series also includes bidirectional types.
- What are the dimensions of the SMBJ33A-TR?
The dimensions are 4.6 x 3.95 x 2.45 mm.
- What standards does the SMBJ33A-TR comply with?
The SMBJ33A-TR complies with standards such as IEC 61000-4-2, IEC 61000-4-4, and MIL STD 883, method 3015.
- What is the maximum clamping voltage of the SMBJ33A-TR?
The maximum clamping voltage is 69.7 V.
- What is the minimum breakdown voltage of the SMBJ33A-TR?
The minimum breakdown voltage is 36.7 V.
