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Contents

README

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SZSMF6.0AT1G

Littelfuse · TVS · SOD-123FL

SZSMF6.0AT1G from Littelfuse, in a SOD-123FL. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 Cathode passive Cathode of the uni-directional TVS, marked by the polarity band, connected to the positive side; VRWM 6 V, VBR 6.67-7.37 V at 10 mA, VC max 10.3 V at 19.4 A IPP.
2 Anode passive Anode of the uni-directional TVS, connected to the negative or ground side of the protected line.

Key specifications

Parameter Value
Manufacturer Littelfuse
Package SOD-123FL
Category Circuit Protection
Pins 2

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Working Peak Reverse Voltage VRWM 6 V 2
Breakdown Voltage VBR 6.67 7.02 7.37 V @ IT = 10 mA, TA = 25°C 2
Maximum Reverse Leakage Current IR 400 µA @ VRWM 2
Maximum Clamping Voltage VC(Max) 10.3 V @ IPP 2
Maximum Reverse Peak Pulse Current IPP(Max) 19.4 A Surge current waveform per Figure 2 2
Forward Voltage VF 3.5 V IF = 12 A, TA = 25°C 2
Peak Power Dissipation (10/1000 µs) PPK 200 W PW-10/1000 µs, TA = 25°C 1
Peak Power Dissipation (8/20 µs) PPK 1000 W TA = 25°C, PW-8/20 µs 1
DC Power Dissipation PD 385 mW TA = 25°C, recommended minimum pad, FR-4 1
Derate Above 25°C 4 mW/°C Above 25°C 1
Thermal Resistance Junction-to-Ambient RθJA 325 °C/W Recommended minimum pad, FR-4 1
Thermal Resistance Junction-to-Lead RθJL 26 °C/W Recommended minimum pad, FR-4 1
Operating and Storage Temperature Range TJ, Tstg -55 150 °C 1

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin Terminal Matte Tin-plated leads, Solderable per JESD22-B102 4

CAD (KiCad official)

  • Symbol: SZSMF6.0AT1G
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123FL (KiCad packages3D, STEP)
  • 3D model files: szsmf6-0at1g-etched.step / szsmf6-0at1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); szsmf6-0at1g.step / szsmf6-0at1g.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Littelfuse datasheet (6 pp, sha256 c7f007045647a940, retrieved 2026-10-23, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF