component
STPS340U
Public Made by Adomby 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.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownSTPS340U
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stps340u.step/stps340u.glbare 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, primarycathode-band convention(convention), consensusoff(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).