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Littelfuse 1-Element Uni-Directional TVS Diode 400W, 2-Pin DO-214 SMAJ48A
Specifications
| Country of Origin | China |
|---|---|
| Brand | Littelfuse |
| Height | 2.08mm |
| Length | 4.6mm |
| Model | SMAJ48A |
| 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 | 77.4V |
| Diode Configuration | Single |
| Direction Type | Uni-Directional |
| Minimum Breakdown Voltage Vbr | 58.9V |
| Maximum Reverse Stand-off Voltage Vwm | 48V |
| Peak Pulse Power Dissipation Pppm | 400W |
| Test Current It | 1mA |
| Maximum Peak Pulse Current Ippm | 5.2A |
| 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
- Single diode configuration for unidirectional voltage suppression.
- Minimum breakdown voltage of 58.9 V and reverse stand-off voltage of 48 V.
- Clamping voltage of 77.4 V protects circuits from voltage spikes.
- Compact DO-214 surface mount package with dimensions 4.6 x 2.79 x 2.08 mm.
- Peak pulse power dissipation of 400 W and peak pulse current of 5.2 A.
- Fast response time typically less than 1.0 picosecond.
- Glass passivated junction with low incremental surge resistance.
- Halogen-free design with built-in strain relief.
Product Description
Littelfuse SMAJ48A is a 1-element uni-directional transient voltage suppression (TVS) diode designed to protect semiconductor devices and circuits from transient voltage spikes. With a peak pulse power dissipation capacity of 400 W and a compact DO-214 surface mount package, this diode is suitable for high-reliability applications in electronic, industrial, and consumer equipment.
This diode features a minimum breakdown voltage (Vbr) of 58.9 V and a maximum reverse stand-off voltage (Vwm) of 48 V, ensuring that voltage transients beyond these thresholds are effectively clamped at a maximum voltage of 77.4 V. The 2-pin configuration and low-profile dimensions facilitate optimized board space usage while providing robust protection.
The SMAJ48A supports a maximum peak pulse current (Ippm) of 5.2 A and operates reliably over a wide temperature range from -65°C to 150°C. It also offers electrostatic discharge (ESD) protection and a fast response time typically less than 1.0 picosecond to suppress transient events almost instantly, preserving circuit integrity.
The diode construction includes a glass passivated junction and built-in strain relief for enhanced durability and low incremental surge resistance. Being halogen-free, it complies with environmental safety standards and is suitable for applications requiring lead-free and RoHS-compliant components.
This product is ideal for transient voltage suppression in industrial, telecommunications, automotive, and consumer electronics applications where protection from lightning-induced transient voltages and other surges is essential.
Single diode configuration for unidirectional voltage protection. 400 W peak pulse power dissipation capability. Compact DO-214 surface mount package with low profile. Voltage ratings: Minimum breakdown 58.9 V, reverse stand-off 48 V, clamping voltage 77.4 V.
Fast response time less than 1.0 picosecond. Operating temperature range: -65°C to 150°C. Halogen-free construction and glass passivated junction. High temperature soldering at 250°C for 10 seconds at terminals. Low reverse leakage current of 1 μA maximizes efficiency.
Discover more Littelfuse semiconductor components and TVS Diode solutions in the Electronics & Electricals category at EnvMart for reliable transient voltage suppression needs.
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Frequently Asked Questions
The peak pulse power dissipation of this model is 400 W.
The clamping voltage for the SMAJ48A is 77.4 V.
The dimensions of the DO-214 package are 4.6 mm in length, 2.79 mm in width, and 2.08 mm in height.
The minimum breakdown voltage (Vbr) of the SMAJ48A is 58.9 V.
The maximum reverse stand-off voltage (Vwm) for this unit is 48 V.
The maximum peak pulse current (Ippm) supported by the SMAJ48A is 5.2 A.
The operating temperature range for the SMAJ48A is from -65°C to 150°C.
The response time of the SMAJ48A is typically less than 1.0 picosecond.
This model uses a single diode configuration for unidirectional voltage suppression.
The maximum reverse leakage current for the SMAJ48A is 1 μA.
The SMAJ48A features a glass passivated junction and is halogen-free.
The mount type for the SMAJ48A is surface mount.
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