component
STTH208U
Public Made by Adomby adom
STMicroelectronics Diodes - Fast Recovery Rectifiers, 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
markdownSTTH208U
STMicroelectronics · Diodes - Fast Recovery Rectifiers · SMB
STTH208U from STMicroelectronics, 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 | STMicroelectronics |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse leakage current | IR | 5 | µA | VR = 800V, Tj = 25°C | 2 | ||
| Reverse leakage current | IR | 50 | µA | VR = 800V, Tj = 125°C | 2 | ||
| Forward voltage drop | VF | 1.65 | V | IF = 2 A, Tj = 25°C | 2 | ||
| Forward voltage drop | VF | 0.89 | 1.25 | V | IF = 2 A, Tj = 150°C | 2 | |
| Reverse recovery time | trr | 75 | ns | IF = 0.5 A, Irr = 0.25 A, IR = 1A, Tj = 25°C | 2 | ||
| Forward recovery time | tfr | 200 | ns | IF = 2A, dIF/dt = 50 A/µs, VFR = 1.1 x VF max, Tj = 25°C | 2 | ||
| Forward recovery voltage | VFP | 9 | V | IF = 2A, dIF/dt = 50 A/µs, VFR = 1.1 x VF max, Tj = 25°C | 2 | ||
| Junction to lead thermal resistance | Rth(j-l) | 25 | °C/W | L = 10 mm, SMB | 2 | ||
| Repetitive peak reverse voltage | VRRM | 800 | V | 1 | |||
| RMS voltage | V(RMS) | 560 | V | 1 | |||
| Average forward current | IF(AV) | 2 | A | Tl = 100°C, δ =0.5, SMB | 1 | ||
| Forward surge current | IFSM | 35 | A | t = 8.3 ms, SMB | 1 | ||
| Storage temperature range | Tstg | -50 | 175 | °C | 1 | ||
| Maximum operating junction temperature | Tj | 175 | °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 | copper | versus copper surface under each lead (epoxy | 3 |
CAD (KiCad official)
- Symbol:
STTH208U - Footprint:
Diode_SMD:D_SMB - 3D model: SMB (KiCad packages3D, STEP)
- 3D model files:
stth208u-etched.step/stth208u-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stth208u.step/stth208u.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (5 pp, sha256
d8f0eb8612d10616, retrieved 2026-10-22, 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).