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Littelfuse 1-Element Uni-Directional TVS Diode 600 W 2-Pin DO-214 SMBJ18A
Specifications
| Country of Origin | India |
|---|---|
| Brand | Littelfuse |
| Height | 2.237mm |
| Length | 4.57mm |
| Model | SMBJ18A |
| Width | 3.94mm |
| Mount Type | Surface |
| Series | SMBJ |
| Maximum Operating Temperature | 150°C |
| Package Type | DO-214 |
| Minimum Operating Temperature | -65°C |
| Pin Count | 2 |
| Number of Elements per Chip | 1 |
| Clamping Voltage VC | 29.2V |
| Diode Configuration | Single |
| Direction Type | Uni-Directional |
| Minimum Breakdown Voltage Vbr | 20V |
| Maximum Reverse Stand-off Voltage Vwm | 18V |
| Peak Pulse Power Dissipation Pppm | 600W |
| Test Current It | 1mA |
| Maximum Peak Pulse Current Ippm | 20.6A |
| Maximum Reverse Leakage Current | 1μA |
Key Features
- The diode configuration is single, suited for uni-directional voltage protection.
- It supports a maximum reverse stand-off voltage of 18 V and a minimum breakdown voltage of 20 V.
- The clamping voltage is rated at 29.2 V for effective surge absorption.
- Operating temperature ranges from -65°C to 150°C, ensuring reliability in harsh environments.
- Peak pulse current rating is 20.6 A, with ESD protection included.
- Maximum reverse leakage current is 1 μA, enabling low leakage performance in circuits.
- Meets standard requirements without automotive certification.
Product Description
Littelfuse SMBJ18A is a 1-element uni-directional Transient Voltage Suppressor (TVS) diode designed for protecting electronic circuits from transient voltage spikes. It offers a peak pulse power dissipation of 600 W, making it suitable for industrial, telecommunications, and power electronics applications requiring robust transient over-voltage protection.
This surface mount device comes in a compact 2-pin DO-214 package. It has a minimum breakdown voltage of 20 V and a maximum reverse stand-off voltage of 18 V, ensuring response to voltage surges above normal operating levels. The clamping voltage of 29.2 V controls voltage spikes and prevents damage to sensitive components.
The SMBJ18A diode supports a wide operating temperature range from -65°C up to 150°C, providing reliable performance in demanding environments. With a maximum peak pulse current rating of 20.6 A and very low leakage current of 1 μA, it delivers effective transient suppression with minimal impact on normal circuit performance. The device is uni-directional, allowing current flow in one direction to clamp surges.
Its compact dimensions (length 4.57 mm, width 3.94 mm, height 2.237 mm) suit surface mount assembly processes and dense PCB layouts. ESD protection characteristics make it compatible with sensitive electronic equipment requiring protection against electrostatic discharge events.
The diode configuration is single, suitable for uni-directional transient voltage suppression. Peak pulse power dissipation rating of 600 W handles significant surge energy. Minimal operating temperature rating of -65°C ensures performance in cold conditions.
Maximum operating temperature of 150°C ensures thermal stability during operation. Compact package type DO-214 enables surface mounting and space-saving PCB design. Pin count of 2 simplifies layout and connectivity. Maximum reverse leakage current of 1 μA maintains low power loss during normal operation.
This TVS Diode is ideal for industrial equipment, power supplies, telecommunications devices, and other electronics requiring reliable transient voltage protection. Its robust ratings and surface mount package facilitate integration into automated manufacturing and high-volume applications.
Explore the complete range of semiconductor protection devices at EnvMart for enhanced circuit safety and compliance with industrial standards.
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Frequently Asked Questions
The maximum reverse stand-off voltage for this diode is 18 V.
It has a peak pulse power dissipation rating of 600 W, making it suitable for handling significant surge energy.
The clamping voltage is rated at 29.2 V, which helps control voltage spikes effectively.
The operating temperature range for the SMBJ18A is from -65°C to 150°C.
The maximum peak pulse current rating is 20.6 A, allowing it to handle high surge currents.
The dimensions are 4.57 mm in length, 3.94 mm in width, and 2.237 mm in height.
This diode has a single element configuration, making it a 1-element device.
The maximum reverse leakage current is 1 μA, ensuring low power loss during normal operation.
This model uses a surface mount type, suitable for compact PCB designs.
The minimum breakdown voltage is 20 V, ensuring effective response to voltage surges.
The package type for the SMBJ18A is DO-214, which is a compact surface mount package.
Yes, the SMBJ18A is a uni-directional TVS diode, allowing current flow in one direction to clamp surges.
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