component

STPS340U

Public Made by Adom

by adom

Tokmas Schottky Diodes, SMB. 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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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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package.json Publish 0.1.0 · Ray 7d ago
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README.md Publish 0.1.0 · Ray 7d ago
stps340u-etched.glb Publish 0.1.0 · Ray 7d ago
stps340u-etched.step stps340u: factory component page (tier=lcsc) · Ray 7d ago
stps340u-hero.glb stps340u: hero GLB from the etched model (keeps the MPN mark) · Ray 7d ago
stps340u-hero.overlay.json Publish 0.1.0 · Ray 7d ago
stps340u.glb Publish 0.1.0 · Ray 7d ago
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stps340u.step Publish 0.1.0 · Ray 7d ago

STPS340U

Tokmas · Schottky Diodes · SMB

STPS340U from Tokmas, in a SMB. 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 Tokmas
Package SMB
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
Repetitive peak reverse voltage VRRM 40 V 2
Average forward current (SMB/SMC) IF(AV) 3 A TL = 105 °C, δ = 0.5 2
Surge non repetitive forward current IFSM 75 A tp = 10 ms sinusoidal 2
Repetitive peak avalanche power PARM 1300 W tp = 1 µs, Tj = 25 °C 2
Storage temperature range Tstg -65 150 °C 2
Operating junction temperature Tj 150 °C Condition to avoid thermal runaway for a diode on its own heatsink 2
Reverse leakage current IR 20 µA Tj = 25 °C, VR = VRRM 2
Reverse leakage current IR 2 10 mA Tj = 125 °C, VR = VRRM 2
Forward voltage drop VF 0.63 V Tj = 25 °C, IF = 3 A 2
Forward voltage drop VF 0.52 0.57 V Tj = 125 °C, IF = 3 A 2
Forward voltage drop VF 0.84 V Tj = 25 °C, IF = 6 A 2
Forward voltage drop VF 0.63 0.72 V Tj = 125 °C, IF = 6 A 2
Junction to lead thermal resistance (SMB) Rth(j-l) 25 °C/W 2

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 copper ambient versus copper surface under each lead 6

CAD (KiCad official)

  • Symbol: STPS340U
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB (KiCad packages3D, STEP)
  • 3D model files: stps340u-etched.step / stps340u-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stps340u.step / stps340u.glb are the bare package body.

Provenance

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

  • Datasheet: Tokmas datasheet (11 pp, sha256 718861b4d168bacd, retrieved 2026-10-21, 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