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Littelfuse 1-Element Bi-Directional TVS Diode 400 W, 2-Pin DO-214 SMAJ33CA
Specifications
| Country of Origin | India |
|---|---|
| Brand | Littelfuse |
| Height | 2.08mm |
| Length | 4.6mm |
| Model | SMAJ33CA |
| 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 | 53.3V |
| Diode Configuration | Single |
| Direction Type | Bi-Directional |
| Minimum Breakdown Voltage Vbr | 40.6V |
| Maximum Reverse Stand-off Voltage Vwm | 33V |
| Peak Pulse Power Dissipation Pppm | 400W |
| Test Current It | 1mA |
| Maximum Peak Pulse Current Ippm | 7.5A |
| Maximum Reverse Leakage Current | 1μA |
| Fast response time | typically less than 1.0ps from 0 Volts to V(BR) for unidirectional types |
| High temperature soldering | 250 degrees C/10 seconds at terminals |
| Repetition Rate (duty cycle) | 0.01% |
Key Features
- Designed for bi-directional voltage transient suppression.
- Peak pulse power dissipation rating of 400 W ensures high surge protection.
- Compact DO-214 surface mount package suitable for space-optimized PCB designs.
- Clamping voltage of 53.3 V provides effective voltage limitation.
- Operates reliably from -65°C to 150°C, supporting industrial temperature ranges.
- Low reverse leakage current of 1 μA minimizes power loss.
- Fast response time typically less than 1.0 picosecond for unidirectional types.
- High peak pulse current capacity of 7.5 A to handle transient events.
Product Description
Littelfuse SMAJ33CA 1-Element Bi-Directional TVS Diode is engineered for transient voltage suppression applications requiring robust protection of sensitive electronic circuits. This device features a peak pulse power dissipation of 400 W, making it ideal for shielding semiconductors from transient surges such as those caused by lightning or electrical switching events.
The diode utilizes a 2-pin DO-214 surface mount package, allowing for minimized board space while maintaining high performance. Its bi-directional design enables symmetrical protection in AC or DC circuits where polarity reversals may occur.
Operating over a wide temperature range from -65°C to 150°C, the SMAJ33CA is suitable for demanding environments, including industrial, automotive, and consumer electronics. The diode exhibits a clamping voltage of 53.3 V, limiting transient overvoltages effectively to protect downstream components.
Single-element configuration delivers targeted transient voltage suppression. High surge current capability up to 7.5 A peak pulse current ensures resilience during voltage spikes. Glass passivated junction provides long-term stability and low incremental surge resistance.
Low leakage current of 1 μA reduces power consumption during normal operation. Halogen-free and RoHS-compliant materials enhance environmental safety. Surface mount design enables automated PCB assembly and optimized space utilization.
This TVS Diode is widely applicable in industrial power supplies, telecommunications, automotive electronics, and consumer devices where protection from transient voltage spikes is critical to operational reliability.
Choose Littelfuse SMAJ33CA for efficient, durable overvoltage protection in 400 W applications requiring compact packaging and high surge tolerance. Browse our Electronics & Electricals semiconductor section for complementary components and solutions aligned with this diode.
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Frequently Asked Questions
The peak pulse power dissipation rating of the SMAJ33CA is 400 W, providing robust surge protection for sensitive electronic circuits.
The clamping voltage of this model is 53.3 V, which effectively limits transient overvoltages to protect downstream components.
The maximum reverse stand-off voltage for the SMAJ33CA is 33 V, ensuring it can handle specified reverse voltages without breakdown.
This diode operates reliably within a temperature range of -65°C to 150°C, making it suitable for various demanding environments.
It can handle a maximum peak pulse current of 7.5 A, which ensures resilience during voltage spikes.
The dimensions of this model are 4.6 mm in length, 2.79 mm in width, and 2.08 mm in height, making it compact for PCB designs.
This diode utilizes a surface mount design, which is suitable for automated PCB assembly and optimized space utilization.
The maximum reverse leakage current of the SMAJ33CA is 1 μA, which helps minimize power loss during normal operation.
The diode configuration of this model is single, designed specifically for targeted transient voltage suppression.
Yes, it is made from halogen-free and RoHS-compliant materials, enhancing its environmental safety.
The fast response time is typically less than 1.0 picosecond for unidirectional types, ensuring rapid protection against transients.
This model is widely applicable in industrial power supplies, telecommunications, automotive electronics, and consumer devices requiring protection from transient voltage spikes.
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