component
STTH112RL
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STMicroelectronics Diodes - Fast Recovery Rectifiers, DO-41. Pinout cross-checked by two models against the datasheet, 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
markdownSTTH112RL
STMicroelectronics · Diodes - Fast Recovery Rectifiers · DO-41
STTH112RL from STMicroelectronics, in a DO-41. 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, identified by the band on the DO-41 package; the diode blocks up to VRRM = 1200 V repetitive peak reverse voltage. |
| 2 | A | passive | Anode of the ultrafast rectifier, conducting an average forward current IF(AV) of 1 A (Tl = 85 °C, δ = 0.5) for the DO-41. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | DO-41 |
| 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 = 1200 V, Tj = 25 °C | 2 | ||
| Reverse leakage current | IR | 50 | µA | VR = 1200 V, Tj = 125 °C | 2 | ||
| Forward voltage drop | VF | 1.9 | V | IF = 1 A, Tj = 25 °C | 2 | ||
| Forward voltage drop | VF | 1.17 | 1.65 | V | IF = 1 A, Tj = 125 °C | 2 | |
| Forward voltage drop | VF | 1.1 | 1.55 | V | IF = 1 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 | 500 | ns | IF = 1 A, dIF/dt = 50 A/µs, VFR = 1.1 x VFmax, Tj = 25 °C | 2 | ||
| Forward recovery voltage | VFP | 30 | V | IF = 1 A, dIF/dt = 50 A/µs, VFR = 1.1 x VFmax, Tj = 25 °C | 2 | ||
| Repetitive peak reverse voltage | VRRM | 1200 | V | 2 | |||
| Voltage rms | V(RMS) | 850 | V | 2 | |||
| Average forward current | IF(AV) | 1 | A | Tl = 85°C δ = 0.5 DO-41 | 2 | ||
| Forward surge current | IFSM | 20 | A | t = 8.3 ms, DO-41 | 2 | ||
| Storage temperature range | Tstg | -50 | 175 | °C | 2 | ||
| Maximum operating junction temperature | Tj | 175 | °C | 2 | |||
| Junction to lead thermal resistance | Rth(j-l) | 45 | °C/W | L = 10 mm, DO-41 | 2 | ||
| Junction to ambient thermal resistance | Rth(j-a) | 110 | °C/W | L = 10 mm, DO-41 | 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 | L =10mm leads epoxy printed circuit board FR4, copper thickness: 35µm | 3 |
CAD (KiCad official)
- Symbol:
STTH112RL - Footprint:
Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal - 3D model: DO-41 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (8 pp, sha256
a0f63569ec40e53e, retrieved 2026-10-22, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-sonnet-5-5(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).