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Littelfuse TP1KSMB-FL FlatSuppressX™ TVS Diodes

Littelfuse TP1KSMB-FL FlatSuppressX™ TVS Diodes are designed specifically to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. These diodes provide superior surge protection, maintaining a flat and stable clamping voltage through their advanced foldback I‑V characteristics. The TP1KSMB-FL TVS diodes deliver 1000W peak pulse power capability using a 10/1000µs waveform and 5W power dissipation on an infinite heat sink (TL=50°C). These diodes offer excellent clamping capability with low clamping voltage and fast response times, typically below 1ps. The TP1KSMB-FL TVS diodes are AEC‑Q101 qualified, ensuring high reliability for automotive and other demanding environments.

The TP1KSMB-FL TVS diodes are available in the DO‑214AA (SMB J-Bend) package, optimizing board space for compact designs. These diodes operate from -65°C to 150°C temperature range. Typical applications include protection of I/O interfaces, VCC bus, and other vulnerable circuits used in automotive electronics.

Features

  • FlatSuppressX™ TVS provides superior surge protection, maintaining a flat and stable clamping voltage through its advanced foldback I‑V
    characteristics
  • High reliability application and automotive grade AEC-Q101 qualified
  • Excellent clamping capability with low clamping voltage
  • Typical failure mode is short from over-specified voltage or current
  • EC 61000-4-2 ESD 30kV(air) and 30kV(contact)
  • ESD protection of data lines in accordance with IEC 61000-4-2
  • EFT protection of data lines in accordance with IEC 610004-4
  • Built-in strain relief
  • Glass passivated chip junction
  • Fast response time, typically less than 1ps (from 0V to VBR min)
  • Low incremental surge resistance
  • UL recognized body that meets flammability rating V-0
  • Meet MSL level1, per J-STD-020, and high temperature soldering guaranteed
  • Matte tin lead–free plated
  • Halogen free
  • RoHS compliant

Applications

  • Protection of I/O interfaces
  • VCC bus
  • Other vulnerable circuits used in automotive electronics

Specifications

  • 1000W peak pulse power capability by 10/1000µs waveform
  • 5W power dissipation on an infinite heat sink (TL=50°C)
  • -65°C to 150°C operating temperature range
  • Typical thermal resistance:
    • 20°C/W junction to lead
    • 100°C/W junction to ambient

Functional Diagram

Littelfuse TP1KSMB-FL FlatSuppressX™ TVS Diodes

I-V Curve Characteristics

Performance Graph - Littelfuse TP1KSMB-FL FlatSuppressX™ TVS Diodes

Dimension Diagram

Mechanical Drawing - Littelfuse TP1KSMB-FL FlatSuppressX™ TVS Diodes
Published: 2026-04-20 | Updated: 2026-05-04