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Littelfuse Uni-Directional TVS Diode 400 W, 2-Pin DO-214AC SMAJ12A
Specifications
| Country of Origin | India |
|---|---|
| Brand | Littelfuse |
| Height | 2.087mm |
| Length | 4.5mm |
| Model | SMAJ12A |
| Width | 2.79mm |
| Mount Type | Surface |
| Series | SMAJ |
| Maximum Operating Temperature | 150°C |
| Package Type | DO-214AC (SMA) |
| Minimum Operating Temperature | -65°C |
| Pin Count | 2 |
| Number of Elements per Chip | 1 |
| Clamping Voltage VC | 19.9V |
| Diode Configuration | Single |
| Direction Type | Uni-Directional |
| Minimum Breakdown Voltage Vbr | 13.3V |
| Maximum Reverse Stand-off Voltage Vwm | 12V |
| Peak Pulse Power Dissipation Pppm | 400W |
| Test Current It | 1mA |
| Maximum Peak Pulse Current Ippm | 20.1A |
| Maximum Reverse Leakage Current | 1μA |
Key Features
- Designed for surface mount applications to protect circuits from voltage spikes.
- Single diode configuration with uni-directional voltage suppression.
- Minimum breakdown voltage of 13.3 V and maximum reverse stand-off voltage of 12 V.
- Clamping voltage at 19.9 V ensures effective transient voltage suppression.
- Operates reliably between -65°C and 150°C for a wide range of environments.
- Features an ESD protection capability with a maximum peak pulse current of 20.1 A.
- Designed with low reverse leakage current of 1 μA for efficient performance.
- Applicable in electronic circuit protection in industrial, automotive, and consumer electronics.
Product Description
Littelfuse SMAJ12A is a high-performance uni-directional TVS diode designed to provide transient voltage suppression for sensitive electronic circuits. This diode delivers a robust peak pulse power dissipation of 400 W, packaged in a compact 2-pin DO-214AC (SMA) surface mount configuration.
Its single-element configuration and uni-directional design ensure effective clamp and protection against voltage spikes, making it ideal for safeguarding semiconductors, discrete components, and power supplies. The device operates reliably under a broad temperature range from -65°C minimum operating temperature to a maximum of 150°C, suitable for demanding environments including industrial and automotive applications.
The diode features a minimum breakdown voltage of 13.3 V and a maximum reverse stand-off voltage of 12 V, with a clamping voltage of 19.9 V, allowing it to absorb transient pulses while maintaining circuit integrity. With ESD protection built-in, it supports a peak pulse current of up to 20.1 A, providing durability during electrostatic discharge events.
Physical dimensions are compact, with length 4.5 mm, width 2.79 mm, and height 2.087 mm, fitting well into PCB layouts where space is constrained. The diode has a low reverse leakage current of 1 μA, enhancing efficiency and minimizing power loss in operation.
This component is valuable for applications in electronic circuit protection across industrial, laboratory, manufacturing, automotive, and commercial sectors, ensuring equipment reliability and longevity.
Designed for surface mount applications with a 2-pin DO-214AC package. Single element, uni-directional transient voltage suppression diode. Peak pulse power dissipation rating of 400 W. Operating temperature range from -65°C to 150°C.
Clamping voltage at 19.9 V with 20.1 A peak pulse current capacity. Compact footprint measuring 4.5 mm by 2.79 mm by 2.087 mm. Low reverse leakage current of 1 μA enhances energy efficiency. Suitable for protecting sensitive electronics in harsh industrial and automotive environments.
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Frequently Asked Questions
The Littelfuse SMAJ12A has a peak pulse power dissipation rating of 400 W.
The clamping voltage for this uni-directional TVS diode is 19.9 V.
It operates reliably within a temperature range of -65°C to 150°C.
The minimum breakdown voltage of this model is 13.3 V.
The maximum reverse stand-off voltage is 12 V.
The maximum peak pulse current capacity is 20.1 A.
The dimensions are 4.5 mm in length, 2.79 mm in width, and 2.087 mm in height.
This model is designed for surface mount applications.
The maximum reverse leakage current is 1 μA.
It has a single element configuration.
This diode is applicable in electronic circuit protection across industrial, automotive, and consumer electronics.
The pin count for this diode is 2.
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