component
STTH1R04U
Public Made by Adomby adom
STMicroelectronics Fast Recovery / High Efficiency 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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README
markdownSTTH1R04U
STMicroelectronics · Fast Recovery / High Efficiency Diodes · SMB
STTH1R04U 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 |
|---|---|---|---|---|---|---|---|
| Repetitive peak reverse voltage | VRRM | 400 | V | 2 | |||
| Average forward current (SMB) | IF(AV) | 1 | A | δ = 0.5, SMB Tlead = 140 °C | 2 | ||
| Surge non repetitive forward current | IFSM | 30 | A | tp = 10 ms Sinusoidal | 2 | ||
| Storage temperature range | Tstg | -65 | 175 | °C | 2 | ||
| Maximum operating junction temperature | Tj | 175 | °C | On infinite heatsink with 10 mm lead length (footnote 1) | 2 | ||
| Junction to lead thermal resistance (SMB) | Rth(j-l) | 25 | °C/W | Lead length = 10 mm on infinite heatsink | 2 | ||
| Reverse leakage current | IR | 5 | µA | Tj = 25 °C, VR = VRRM | 2 | ||
| Reverse leakage current | IR | 5 | 50 | µA | Tj = 125 °C | 2 | |
| Forward voltage drop | VF | 1.5 | V | Tj = 25 °C, IF = 1.0 A | 2 | ||
| Forward voltage drop | VF | 1 | 1.25 | V | Tj = 100 °C | 2 | |
| Forward voltage drop | VF | 0.9 | 1.15 | V | Tj = 150 °C | 2 | |
| Reverse recovery time | trr | 30 | ns | IF = 1 A, dIF/dt = -50 A/µs, VR = 30 V, Tj = 25 °C | 3 | ||
| Reverse recovery time | trr | 14 | 20 | ns | IF = 1 A, dIF/dt = -100 A/µs, VR = 30 V, Tj = 25 °C | 3 | |
| Reverse recovery current | IRM | 2.5 | 3.5 | A | IF = 1 A, dIF/dt = -200 A/µs, VR = 320 V, Tj = 125 °C | 3 | |
| Forward recovery time | tfr | 50 | ns | IF = 1 A, dIF/dt = 100 A/µs, VFR = 1.1 x VFmax, Tj = 25 °C | 3 | ||
| Forward recovery voltage | VFP | 3.5 | V | IF = 1 A, dIF/dt = 100 A/µs | 3 |
CAD (KiCad official)
- Symbol:
STTH1R04U - Footprint:
Diode_SMD:D_SMB - 3D model: SMB (KiCad packages3D, STEP)
- 3D model files:
stth1r04u-etched.step/stth1r04u-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stth1r04u.step/stth1r04u.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (10 pp, sha256
f339b526c22970d4, retrieved 2026-10-15, 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).