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1SMB12AT3G

1SMB12AT3G Description

The 1SMB12AT3G is a Zener TVS Diode from Littelfuse Inc., designed for general-purpose applications. It is a surface-mount device with a capacitance of 1245pF at 1MHz and a peak pulse current rating of 30.2A (10/1000µs). The device has a minimum breakdown voltage of 13.3V and a maximum clamping voltage of 19.9V at the peak pulse current. The reverse standoff voltage is typically 12V.

1SMB12AT3G Features

• Technical Specifications:

  • Capacitance @ Frequency: 1245pF @ 1MHz
  • Current - Peak Pulse (10/1000µs): 30.2A
  • Voltage - Breakdown (Min): 13.3V
  • Voltage - Clamping (Max) @ Ipp: 19.9V
  • Voltage - Reverse Standoff (Typ): 12V
  • Power - Peak Pulse: 600W
  • Mounting Type: Surface Mount
  • Supplier Device Package: SMB
  • Unidirectional Channels: 1
  • Moisture Sensitivity Level (MSL): 1 (Unlimited)

• Regulatory Compliance:

  • ECCN: EAR99
  • REACH Status: REACH Unaffected
  • RoHS Status: ROHS3 Compliant

• Packaging:

  • Supplier Device Package: SMB
  • Package: Tape & Reel (TR)

• Unique Features:

  • The 1SMB12AT3G offers a high peak pulse current rating, making it suitable for applications requiring high surge protection.
  • Its low capacitance at 1MHz ensures minimal impact on high-frequency signals, making it ideal for use in high-speed circuits.

1SMB12AT3G Applications

The 1SMB12AT3G is ideal for general-purpose applications where transient voltage suppression is required. Some specific use cases include:

• Telecommunications Equipment: Protecting sensitive components from voltage spikes and surges.
• Automotive Electronics: Providing surge protection for electronic control units (ECUs) and other critical components.
• Industrial Control Systems: Protecting against voltage transients caused by electrical noise and other disturbances.
• Consumer Electronics: Ensuring the reliability and longevity of electronic devices by safeguarding against voltage spikes.

Conclusion of 1SMB12AT3G

The 1SMB12AT3G is a versatile Zener TVS Diode from Littelfuse Inc., offering high peak pulse current and low capacitance at 1MHz. Its unique combination of technical specifications and regulatory compliance makes it suitable for a wide range of general-purpose applications. While it is now considered obsolete, its performance benefits and unique features make it a valuable option for legacy systems and applications requiring high surge protection and minimal impact on high-frequency signals.