component

ZLLS400QTA

Public Made by Adom

by adom

Diodes Incorporated Schottky Diodes, SOD-323. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

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ZLLS400QTA

Diodes Incorporated · Schottky Diodes · SOD-323

ZLLS400QTA from Diodes Incorporated, in a SOD-323. 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 K passive Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint.
2 A passive Anode.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOD-323
Category Diodes
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
Continuous Reverse Voltage VR 40 V TA = +25°C 2
Continuous Forward Current IF 0.52 A TA = +25°C 2
Peak Repetitive Forward Current IFPK 0.85 A Rectangular Pulse Duty Cycle 2
Non-Repetitive Forward Current IFSM 12 A t ≤ 100µs 2
Non-Repetitive Forward Current IFSM 2.5 A t ≤ 10ms 2
Power Dissipation, Single Die Continuous PD 330 mW TA = +25°C 2
Power Dissipation, Single Die PD 390 mW TA = +25°C, measured at t < 5 secs 2
Thermal Resistance, Junction to Ambient RθJA 379 °C/W Note 5: 25mm x 25mm FR4 PCB, 1oz copper, still air 2
Thermal Resistance, Junction to Ambient RθJA 317 °C/W Note 6: FR4 PCB, t < 5 secs 2
Junction Temperature TJ 150 °C 2
Storage Temperature Range TSTG -55 150 °C 2
Reverse Breakdown Voltage V(BR)R 40 60 V IR = 200µA 3
Forward Voltage VF 305 360 mV IF = 50mA 3
Forward Voltage VF 335 390 mV IF = 100mA 3
Forward Voltage VF 395 450 mV IF = 250mA 3
Forward Voltage VF 445 500 mV IF = 400mA 3
Forward Voltage VF 550 630 mV IF = 750mA 3
Forward Voltage VF 620 710 mV IF = 1A 3
Forward Voltage VF 710 800 mV IF = 1.5A 3
Forward Voltage VF 405 mV IF = 400mA, TA = +100°C 3
Reverse Current IR 6 10 µA VR = 30V 3
Reverse Current IR 370 µA VR = 30V, TA = +85°C 3
Diode Capacitance CD 15 pF f = 1MHz, VR = 30V 3
Reverse Recovery Time trr 3 ns Switched from IF = 500mA to VR = 5.5V Measured @ IR = 50mA di/dt = 500mA/ns Rsource = 6Ω, Rload = 10Ω 3
Reverse Recovery Charge Qrr 210 pC 3

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 Connections: Cathode Band • Terminals: Finish, Matte Tin Annealed over Alloy 42 Leadframe. 1

CAD (KiCad official)

  • Symbol: ZLLS400QTA
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: zlls400qta-etched.step / zlls400qta-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); zlls400qta.step / zlls400qta.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (6 pp, sha256 0bf2d6bf35292d08, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary cathode-band convention (convention), consensus off (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