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Bourns 1-Element Uni-Directional TVS Diode 400 W Peak Pulse Power, 2-Pin Surface Mount DO-214 SMAJ12A
Specifications
| Country of Origin | Taiwan |
|---|---|
| Brand | Bourns |
| Height | 2.42mm |
| Length | 4.57mm |
| Model | SMAJ12A |
| Width | 2.92mm |
| Mount Type | Surface |
| Series | SMA |
| Maximum Operating Temperature | 150°C |
| Package Type | DO-214 |
| Minimum Operating Temperature | -55°C |
| Pin Count | 2 |
| Number of Elements per Chip | 1 |
| Clamping Voltage VC | 3.5V |
| Automotive Standard | AEC-Q101 |
| 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 | 35A |
| Maximum Reverse Leakage Current | 5μA |
Key Features
- The diode provides unidirectional protection to sensitive electronic circuits against transient overvoltages.
- This component features a single diode element with a breakdown voltage of 13.3 volts.
- It supports a maximum reverse stand-off voltage of 12 volts and a peak pulse current of 35 amps.
- The diode operates efficiently across a temperature range from -55°C to 150°C.
- It has a compact form factor with dimensions 4.57 mm length, 2.92 mm width, and 2.42 mm height.
- Designed for surface mounting with a 2-pin DO-214 package.
- This TVS diode complies with automotive standard AEC-Q101 ensuring suitability for automotive applications.
- Maximum reverse leakage current is minimal at 5 microamperes to ensure signal integrity.
Product Description
Bourns SMAJ12A is a 1-element unidirectional Transient Voltage Suppressor (TVS) diode designed to protect electronic circuits from damaging transient voltage spikes. Rated at 400 W peak pulse power dissipation, this device is housed in a compact surface mount DO-214 (SMB) package suitable for efficient PCB mounting.
Featuring a single diode configuration with a minimum breakdown voltage of 13.3 V and a maximum reverse stand-off voltage of 12 V, the SMAJ12A effectively clamps transient voltages to a safe level of 3.5 V. It supports transient currents up to 35 A and operates under harsh conditions with an operating temperature range from -55°C up to 150°C.
The diode’s small form factor with dimensions of 4.57 mm length, 2.92 mm width, and 2.42 mm height allows for high-density electronic designs, making it ideal for industrial, automotive, and consumer electronics protection applications. It complies with the AEC-Q101 automotive standard, ensuring durability and reliability in automotive environments.
Transient voltage suppressors like the Bourns SMAJ12A are essential components in protecting sensitive semiconductor devices in power supplies, communications equipment, and automotive electronics from electrostatic discharge (ESD) and voltage transients caused by inductive loads or lightning surges.
The diode provides unidirectional transient voltage suppression for circuit protection. It delivers 400 W peak pulse power capacity and 35 A peak pulse current rating. Compact 2-pin DO-214 surface mount package for easy PCB integration.
Wide operating temperature range from -55°C to 150°C for harsh environment reliability. Low leakage current and reliable clamping voltage enhance circuit stability. Meets automotive grade AEC-Q101 standard for application in vehicles.
Ideal for use in industrial electronics, automotive systems, power supplies, and communication devices.
Choose the Bourns SMAJ12A TVS Diode to ensure robust transient voltage protection for electronic designs requiring compact, high-performance discrete semiconductor components. For more options and support, explore our Electronics & Electricals category on EnvMart.
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Frequently Asked Questions
The SMAJ12A diode has a peak pulse power dissipation rating of 400 W.
The minimum breakdown voltage of the SMAJ12A is 13.3 volts.
The maximum reverse stand-off voltage for this model is 12 volts.
This diode supports a maximum peak pulse current of 35 amps.
The diode operates efficiently across a temperature range from -55°C to 150°C.
The dimensions of this model are 4.57 mm in length, 2.92 mm in width, and 2.42 mm in height.
The clamping voltage for the SMAJ12A is 3.5 volts.
The maximum reverse leakage current for the SMAJ12A is 5 microamperes.
This model is housed in a compact DO-214 surface mount package.
Yes, the SMAJ12A complies with the AEC-Q101 automotive standard.
The SMAJ12A features a single diode element configuration.
The mounting type for this diode is surface mount.
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