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SL1545
Public Made by Adomby adom
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
markdownSL1545
MDD（Microdiode Electronics） · Schottky Barrier Diodes (SBD) · TO-277
SL1545 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 of the TO-277 package, tied internally to the right pin; the part is rated 45 V reverse voltage and 15 A average forward current. |
| 2 | A | passive | Anode, right pin of the TO-277 package, tied internally to the left pin; the part is rated 45 V reverse voltage and 15 A average forward current. |
| 3 | K | passive | Cathode, the bottomside heat sink tab, which connects to the cathode pad and has a typical thermal resistance RθJA of 22 °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 | |||
| RMS reverse voltage | VRMS | 31.5 | V | 1 | |||
| Average rectified output current | I(O) | 15 | A | 1 | |||
| Non-repetitive peak forward surge current | IFSM | 250 | A | 8.3ms single half sine-wave superimposed on rated load (JEDEC method) | 1 | ||
| Forward voltage drop | VF | 0.48 | V | at 15A | 1 | ||
| Forward voltage drop (second printed value) | VF | 0.43 | V | 1 | |||
| Peak reverse current at rated DC blocking voltage | IR | 100 | 200 | uA | TA=25℃ | 1 | |
| Peak reverse current at rated DC blocking voltage | IR | 10 | 20 | mA | TA=100℃ | 1 | |
| Operating junction storage temperature range | TJ | -55 | 150 | ℃ | 1 | ||
| Typical thermal resistance (junction to ambient) | RθJA | 22 | ℃/W | Note 2: polyimide PCB, 2oz Cu, cathode pad 18.814.41.6mm, anode pad 5.6x14.4*1.6mm | 1 | ||
| Storage temperature range | TSTG | -55 | 150 | ℃ | 1 | ||
| Typical junction capacitance | CJ | 1000 | pF | measured at 1.0 MHz, reverse voltage 4.0 Vdc | 1 |
CAD (KiCad official)
- Symbol:
SL1545 - Footprint:
Package_TO_SOT_SMD:TO-277A - 3D model: TO-277 (KiCad packages3D, STEP)
- 3D model files:
sl1545-etched.step/sl1545-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sl1545.step/sl1545.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MDD（Microdiode Electronics） datasheet (3 pp, sha256
8bb80eeda798fc4a, 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).