component
ST54C
Public Made by Adomby adom
MDD（Microdiode Electronics） Schottky Barrier Diodes (SBD), SMC. 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
markdownST54C
MDD（Microdiode Electronics） · Schottky Barrier Diodes (SBD) · SMC
ST54C from MDD（Microdiode Electronics）, in a SMC. 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 | MDD（Microdiode Electronics） |
| Package | SMC |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum repetitive peak reverse voltage | VRRM | 40 | V | 1 | |||
| Maximum RMS voltage | VRMS | 28 | V | 1 | |||
| Maximum DC blocking voltage | VDC | 40 | V | 1 | |||
| Maximum average forward rectified current | I(AV) | 5 | A | 0.375" (9.5mm) lead length (see fig.1) | 1 | ||
| Peak forward surge current | IFSM | 150 | A | 8.3ms single half sine-wave superimposed on rated load (JEDEC Method) | 1 | ||
| Maximum instantaneous forward voltage | VF | 0.45 | V | 5.0A | 1 | ||
| Operating storage temperature range | TSTG | -55 | 150 | °C | 1 | ||
| Operating junction temperature range | TJ | -55 | 125 | °C | 1 | ||
| Typical junction capacitance | CJ | 500 | pF | 1MHz and applied reverse voltage of 4.0V D.C. | 1 | ||
| Typical thermal resistance junction to ambient | RθJA | 60 | °C/W | 0.375" (9.5mm) lead length, P.C.B. mounted | 1 |
CAD (KiCad official)
- Symbol:
ST54C - Footprint:
Diode_SMD:D_SMC - 3D model: SMC (KiCad packages3D, STEP)
- 3D model files:
st54c-etched.step/st54c-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);st54c.step/st54c.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MDD（Microdiode Electronics） datasheet (3 pp, sha256
3051b9db40775969, 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).