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STMicroelectronics 1-Element Bi-Directional TVS Diode 400 W 2-Pin DO-214 SMAJ18CA-TR
Specifications
| Country of Origin | India |
|---|---|
| Brand | STMicroelectronics |
| Height | 2.03mm |
| Length | 2.95mm |
| Model | SMAJ18CA-TR |
| Width | 4.6mm |
| Mount Type | Surface |
| Series | SMAJxxCA |
| Maximum Operating Temperature | 150°C |
| Package Type | DO-214 |
| Minimum Operating Temperature | -55°C |
| Pay online using | Or choose to pay later via bank transfer |
| RS Stock No. | 714-1026Brand: STMicroelectronicsManufacturers Part No.: SMAJ18CA-TRDistrelec Article No.: 304-43-890 |
| Pin Count | 2 |
| Number of Elements per Chip | 1 |
| Clamping Voltage VC | 39.3V |
| Diode Configuration | Single |
| Direction Type | Bi-Directional |
| Minimum Breakdown Voltage Vbr | 20V |
| Maximum Reverse Stand-off Voltage Vwm | 18V |
| Peak Pulse Power Dissipation Pppm | 400W |
| Test Current It | 1mA |
| Maximum Peak Pulse Current Ippm | 59A |
| Maximum Reverse Leakage Current | 200nA |
Key Features
- Single diode configuration with bi-directional direction type for effective transient voltage suppression.
- Minimum breakdown voltage of 20 V and maximum reverse stand-off voltage of 18 V.
- Clamping voltage rated at 39.3 V ensuring protection during voltage spikes.
- Operates reliably from -55°C to 150°C with minimal leakage current of 200 nA.
- Peak pulse current capability of 59 A with ESD protection integrated.
- Designed for industrial and electronic applications requiring robust transient voltage suppression.
Product Description
STMicroelectronics SMAJ18CA-TR is a 1-element bi-directional TVS diode designed for efficient transient voltage suppression in sensitive electronic circuits. The diode provides a reliable peak pulse power dissipation of 400 W within a compact 2-pin DO-214 surface-mount package, featuring a single diode configuration ideal for bi-directional overvoltage protection.
This device maintains excellent electrical stability across an operating temperature range from -55°C up to 150°C, ensuring durability in harsh environments. With a minimum breakdown voltage of 20 V and a maximum reverse stand-off voltage of 18 V, the SMAJ18CA-TR effectively clamps voltage spikes up to 39.3 V, safeguarding circuits from transient surges. The diode's low maximum reverse leakage current of 200 nA minimizes standby power loss, while its high peak pulse current capability of 59 A and integrated ESD protection enhance circuit resilience.
Featuring a compact form factor of 2.95 mm length, 4.6 mm width, and 2.03 mm height, this TVS diode supports space-constrained designs commonly found in industrial applications, telecommunications, automotive electronics (non-automotive standard), and power supply protection. The SMAJ18CA-TR belongs to the SMAJxxCA series and is suited for use in PCB assemblies requiring surface mount technology.
Applications include protection of power supplies, sensitive electronics, communication lines, and other components vulnerable to voltage transients caused by inductive loads, lightning strikes, or electrostatic discharge events. Its bi-directional configuration enables symmetrical voltage clamping for AC or bidirectional signal lines.
Single diode configuration with bi-directional transient voltage suppression. Surface mount DO-214 package for compact PCB layouts. High power rating of 400 W for surge protection. Wide operating temperature range from -55°C to 150°C for enhanced reliability.
Low leakage current and high peak pulse current capacity. Ideal for industrial, telecommunications, and electronic circuit protection. Complies with standard electrical parameters without automotive certification. Explore the STMicroelectronics range of discrete semiconductors and TVS Diodes on EnvMart for reliable protection solutions tailored to your electronic design needs.
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Frequently Asked Questions
The peak pulse power dissipation of this model is 400 W.
It operates reliably within a temperature range of -55°C to 150°C.
The clamping voltage is rated at 39.3 V, providing effective protection during voltage spikes.
This unit has a length of 2.95 mm, a width of 4.6 mm, and a height of 2.03 mm.
The maximum reverse leakage current is 200 nA, which helps minimize standby power loss.
It has a maximum peak pulse current capability of 59 A.
This model features a single diode configuration with bi-directional transient voltage suppression.
The minimum breakdown voltage is 20 V, which is essential for its operation in transient voltage suppression.
It is designed for surface mounting, suitable for compact PCB layouts.
This diode is suitable for protecting power supplies, sensitive electronics, and communication lines from voltage transients.
It belongs to the SMAJxxCA series of TVS diodes.
The package type is DO-214, which is a compact surface-mount package.
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