component

SZSMF15AT1G

Public Made by Adom

by adom

Littelfuse ESD And Surge Protection (TVS/ESD), SOD-123FL. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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README.md Publish 0.1.0 · Ray 15d ago
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szsmf15at1g-etched.step szsmf15at1g: factory component page (tier=lcsc) · Ray 15d ago
szsmf15at1g-hero.glb szsmf15at1g: hero GLB from the etched model (keeps the MPN mark) · Ray 15d ago
szsmf15at1g-hero.overlay.json Publish 0.1.0 · Ray 15d ago
szsmf15at1g.glb Publish 0.1.0 · Ray 15d ago
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szsmf15at1g.kicad_sym Publish 0.1.0 · Ray 15d ago
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SZSMF15AT1G

Littelfuse · ESD And Surge Protection (TVS/ESD) · SOD-123FL

SZSMF15AT1G 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, identified by the polarity band; the part is rated for a working peak reverse voltage VRWM of 15 V, with breakdown VBR of 16.70 to 18.50 V and clamping voltage VC of 24.4 V maximum.
2 Anode passive Anode, the end opposite the polarity band; maximum reverse leakage current IR is 1 µA at VRWM of 15 V.

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
Breakdown Voltage @ IT (Nominal 17.60 V, row for 15 V stand-off) VBR 16.7 17.6 18.5 V IT = 1 mA (Note 6); TL = 30°C unless otherwise noted; VBR measured at TA = 25°C 2
Maximum Reverse Leakage Current @ VRWM IR 1 µA @ VRWM = 15 V 2
Clamping Voltage @ IPP (VC(Max)) VC 24.4 V @ IPP = 8.2 A (Note 7); surge waveform per Figure 2 2
Maximum Reverse Peak Pulse Current (IPP(Max)) IPP 8.2 A Surge current waveform per Figure 2, derate per Figure 3 (Note 7) 2
Forward Voltage (I-V curve characteristics) VF 3.5 V TA = 25°C unless otherwise noted; IF = 12 A (Note 4) 2
Maximum Peak Pulse Power Dissipation (10/1000 µs) PPK 200 W PW = 10/1000 µs; non-repetitive, TA = 25°C (Note 1) 1
Maximum Peak Pulse Power Dissipation (8/20 µs) PPK 1000 W PW = 8/20 µs; TA = 25°C (Note 2) 1
DC Power Dissipation PD 385 mW TA = 25°C (Note 3); mounted with recommended minimum pad size, DC board FR-4 1
Thermal Resistance, Junction-to-Ambient RƟJA 325 °C/W Note 3: recommended minimum pad size, DC board FR-4 1
Thermal Resistance, Junction-to-Lead RƟJL 26 °C/W Note 3 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: SZSMF15AT1G
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123FL (KiCad packages3D, STEP)
  • 3D model files: szsmf15at1g-etched.step / szsmf15at1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); szsmf15at1g.step / szsmf15at1g.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse datasheet (6 pp, sha256 926abd2672dca903, retrieved 2026-10-20, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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