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Littelfuse Uni-Directional TVS Diode 400 W Surface Mount DO-214 Package 2-Pin SMAJ28A
Specifications
| Country of Origin | India |
|---|---|
| Brand | Littelfuse |
| Height | 2.087mm |
| Length | 4.5mm |
| Model | SMAJ28A |
| Width | 2.79mm |
| Mount Type | Surface |
| Series | SMAJ |
| 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 | 45.4V |
| Diode Configuration | Single |
| Direction Type | Uni-Directional |
| Minimum Breakdown Voltage Vbr | 31.1V |
| Maximum Reverse Stand-off Voltage Vwm | 28V |
| Peak Pulse Power Dissipation Pppm | 400W |
| Test Current It | 1mA |
| Maximum Peak Pulse Current Ippm | 8.8A |
| Maximum Reverse Leakage Current | 1μA |
Key Features
- Designed for transient voltage suppression in electronic circuits.
- Single element configuration ensures reliable unidirectional protection.
- Minimum breakdown voltage of 31.1 V and maximum reverse standoff voltage of 28 V.
- Clamping voltage rated at 45.4 V protects sensitive components effectively.
- Operates reliably between -65°C to 150°C temperatures.
- Peak pulse current withstand capability of 8.8 A with 1 mA test current.
- Low maximum reverse leakage current of 1 μA reduces power loss.
- ESD protected to safeguard against electrostatic discharge damage.
Product Description
Littelfuse SMAJ28A is a high-quality Uni-Directional Transient Voltage Suppressor (TVS) diode designed for surface mount applications in electronics and electrical systems. It provides a peak pulse power dissipation of 400 watts in a compact DO-214 package with 2 pins, ideal for protecting circuits against voltage transients and surges.
This diode features a single element construction with a minimum breakdown voltage of 31.1 V and a maximum reverse stand-off voltage of 28 V, ensuring precise clamping at transient events with a clamping voltage of 45.4 V. Its operational temperature range spans from -65°C to 150°C, making it suitable for a wide array of industrial, automotive, and commercial electronics environments.
The device dimensions (4.5 mm length, 2.79 mm width, and 2.087 mm height) facilitate convenient surface mount PCB assembly while offering robust transient suppression. Its low maximum reverse leakage current (1 μA) minimizes standby power consumption, and 8.8 A peak pulse current capacity allows for effective suppression of high-energy surges.
Engineered for reliability and standard compliance within the SMAJ product series, the SMAJ28A effectively protects semiconductor and discrete circuits from voltage spikes, electrostatic discharge (ESD), and transient surges. It is widely used in industrial control systems, power supplies, switching devices, and communication equipment.
Designed for transient voltage suppression in sensitive electronic circuits. Single-element unidirectional design for precise clamping. High surge protection with 400 W peak pulse power rating. Wide operating temperature range ensures durability in harsh environments.
Compact surface mount DO-214 package suitable for automated assembly. Ideal for industrial, automotive, and commercial electronics applications. Protects against both ESD and transient overvoltage events. Low leakage current reduces power losses during normal operation.
Standard SMAJ series for compatibility with existing designs. Ensures reliable and effective circuit protection over its lifespan. Explore the Littelfuse brand and SMAJ series TVS Diodes at EnvMart for reliable electronic protection solutions.
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Frequently Asked Questions
The peak pulse power dissipation of this model is 400 watts, allowing it to effectively manage voltage transients and surges in electronic circuits.
This unit operates reliably within a temperature range of -65°C to 150°C, making it suitable for various industrial and commercial applications.
The dimensions of this diode are 4.5 mm in length, 2.79 mm in width, and 2.087 mm in height, which facilitates surface mount PCB assembly.
The clamping voltage is rated at 45.4 V, providing effective protection for sensitive components during transient events.
The maximum reverse stand-off voltage for the SMAJ28A is 28 V, ensuring it can handle voltage spikes effectively without failure.
This model features a 2-pin configuration, suitable for surface mount applications in electronic circuits.
The maximum peak pulse current capability of the SMAJ28A is 8.8 A, allowing it to suppress high-energy surges effectively.
The maximum reverse leakage current is 1 μA, which helps to minimize power loss during normal operation.
This model uses a single element configuration, providing reliable unidirectional protection against voltage transients.
The minimum breakdown voltage is 31.1 V, ensuring that the diode activates at the appropriate voltage level to protect circuits.
It comes in a compact DO-214 package, which is suitable for automated surface mount assembly in various electronic applications.
This TVS diode is widely used in industrial control systems, power supplies, switching devices, and communication equipment for transient voltage suppression.
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