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ST2045
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MDD（Microdiode Electronics） Schottky Barrier Diodes (SBD), TO-277. 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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README
markdownST2045
MDD（Microdiode Electronics） · Schottky Barrier Diodes (SBD) · TO-277
ST2045 from MDD（Microdiode Electronics）, in a TO-277. 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 | A | passive | Anode, left pin; internally common with the right pin, and the diode conducts toward the bottom-side heat sink cathode (45 V VRRM, 20 A average rectified current). |
| 2 | A | passive | Anode, right pin; internally common with the left pin, and the diode conducts toward the bottom-side heat sink cathode (45 V VRRM, 20 A average rectified current). |
| 3 | K | passive | Cathode, the bottom-side heat sink tab; it is the thermal path with a typical RθJC of 1 °C/W. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MDD（Microdiode Electronics） |
| Package | TO-277 |
| Category | Diodes |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Maximum repetitive peak reverse voltage | VRRM | 45 | V | 1 | |||
| Maximum RMS reverse voltage | VRMS | 32 | V | 1 | |||
| Average rectified output current | I(O) | 20 | A | 1 | |||
| Non-repetitive peak forward surge current | IFSM | 400 | A | 8.3ms single half sine-wave superimposed on rated load (JEDEC Method) | 1 | ||
| Forward voltage drop | vF | 0.47 | 0.5 | V | 20A, TA=25℃ | 1 | |
| Forward voltage drop | vF | 0.42 | 0.45 | V | 20A, TA=125℃ | 1 | |
| Peak reverse current at rated DC blocking voltage | IR | 35 | 60 | uA | Rated DC blocking voltage, TA=25℃ | 1 | |
| Peak reverse current at rated DC blocking voltage | IR | 40 | 70 | mA | Rated DC blocking voltage, TA=125℃ | 1 | |
| Operating junction temperature range | TJ | -55 | 150 | ℃ | 1 | ||
| Typical thermal resistance junction to ambient | RθJC | 1 | ℃/W | 1 | |||
| Storage temperature range | TSTG | -55 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
ST2045 - Footprint:
Package_TO_SOT_SMD:TO-277A - 3D model: TO-277 (KiCad packages3D, STEP)
- 3D model files:
st2045-etched.step/st2045-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);st2045.step/st2045.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MDD（Microdiode Electronics） datasheet (3 pp, sha256
5e874d710b86be8b, retrieved 2026-10-21, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).