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SMAJ12CA-13-F

12V bidirectional TVS diode, 400W peak pulse power, SMA (DO-214AC) package, AEC-Q101 qualified for automotive ESD protection

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Pieza del fabricante：

SMAJ12CA-13-F

Paquete：

SMA (DO-214AC)

Marca：
Categorías de productos：
Compromiso de calidad
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Descripción

Productos

The SMAJ12CA-13-F from Diodes Incorporated is a 12V bidirectional TVS (Transient Voltage Suppressor) diode in an SMA (DO-214AC) package. It provides ESD protection and transient surge suppression for sensitive electronic circuits, offering a breakdown voltage of 13.3V minimum and a clamping voltage of 19.9V at peak pulse current.

Especificaciones

Reverse Standoff Voltage (VRWM) 12V
Breakdown Voltage (VBR) 13.3V min / 14.7V max
Clamping Voltage (VC) @ IPP 19.9V @ 5.03A
Peak Pulse Power (PPP) 400W (10/1000μs)
Peak Pulse Current (IPP) 5.03A
Leakage Current (IR) 1μA max @ VRWM
Configuración Bidirectional
Paquete SMA (DO-214AC)

Características

  • 400W peak pulse power dissipation (10/1000μs waveform)
  • Bidirectional protection for AC signal lines
  • Low leakage current (1μA max) at standoff voltage
  • Fast response time for ESD protection
  • IEC 61000-4-2 ESD protection compliance
  • AEC-Q101 qualified for automotive applications
  • Compact SMA surface mount package

Aplicaciones

  • ESD protection on data and signal lines
  • Power supply transient suppression
  • Automotive electronics protection
  • RS-485 and CAN bus surge protection
  • Consumer electronics interface protection

The SMAJ12CA-13-F is a bidirectional transient voltage suppressor (TVS) diode from Diodes Incorporated, designed to protect sensitive electronic components from voltage transients caused by electrostatic discharge (ESD), electrical fast transients (EFT), and lightning-induced surges. The device features a reverse standoff voltage of 12V, making it suitable for 12V bus protection in automotive and industrial applications. The bidirectional configuration allows protection of AC signal lines where voltage can swing both above and below ground. Housed in an SMA (DO-214AC) surface mount package, the SMAJ12CA-13-F offers 400W peak pulse power dissipation and is AEC-Q101 qualified for automotive use.

The SMAJ12CA-13-F operates as a bidirectional clamping device using two back-to-back avalanche diode junctions. Under normal operating conditions, when the voltage across the device remains within the standoff voltage (±12V), the TVS presents a very high impedance with leakage current less than 1μA, effectively being invisible to the protected circuit. When a transient voltage exceeds the breakdown voltage (±13.3V minimum), the avalanche junction activates and the device enters a low-impedance state, diverting the surge current away from the protected circuit. The voltage is clamped to a maximum of 19.9V at the rated peak pulse current of 5.03A. Once the transient subsides, the device automatically returns to its high-impedance state.

Pin Nombre Descripción
1 Cathode/Anode Bidirectional terminal 1; connects to protected line or ground
2 Anode/Cathode Bidirectional terminal 2; connects to protected line or ground
  • Automotive 12V Bus Protection: Suppresses load dump and transient surges on 12V power rails in vehicle electronics
  • RS-485/CAN Bus Protection: Shields communication transceivers from common-mode and differential surges
  • ESD Protection on Data Lines: Provides IEC 61000-4-2 compliant protection for USB, HDMI, and other high-speed interfaces
  • Industrial Control I/O: Protects sensor inputs and actuator outputs from EFT and surge events
Modelo Fabricante VRWM PPP Direction
SMAJ12A Littelfuse 12V 400W Unidirectional
SMAJ12CA Littelfuse 12V 400W Bidirectional
P6KE12CA onsemi 12V 600W Bidirectional
SMBJ12CA Diodos Inc 12V 600W Bidirectional
SMAJ13CA-13-F Diodos Inc 13V 400W Bidirectional
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Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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