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BAT54CE
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ST(Semtech) Schottky Diodes, SOT-523. 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
markdownBAT54CE
ST(Semtech) · Schottky Diodes · SOT-523
BAT54CE from ST(Semtech), in a SOT-523. 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 | A1 | passive | Anode of the first Schottky diode in the BAT54CE dual common-cathode pair (VR 30 V, IF(AV) 200 mA). |
| 2 | A2 | passive | Anode of the second Schottky diode in the BAT54CE dual common-cathode pair (VR 30 V, IF(AV) 200 mA). |
| 3 | K | passive | Common cathode of both Schottky diodes in the BAT54CE (VRRM 30 V, IFRM 300 mA per diode). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ST(Semtech) |
| Package | SOT-523 |
| 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 |
|---|---|---|---|---|---|---|---|
| Peak Repetitive Reverse Voltage | VRRM | 30 | V | Ta = 25 °C | 1 | ||
| Reverse Voltage | VR | 30 | V | Ta = 25 °C | 1 | ||
| Forward Current | IF(AV) | 200 | mA | Ta = 25 °C | 1 | ||
| Repetitive Peak Forward Current | IFRM | 300 | mA | Ta = 25 °C | 1 | ||
| Peak Forward Surge Current | IFSM | 600 | mA | tp = 10 ms | 1 | ||
| Total Power Dissipation | Ptot | 150 | mW | Ta = 25 °C | 1 | ||
| Junction Temperature | Tj | 125 | °C | 1 | |||
| Storage Temperature Range | Tstg | -65 | 150 | °C | 1 | ||
| Thermal Resistance from Junction to Ambient | RθJA | 667 | °C/W | 1 | |||
| Forward Voltage | VF | 240 | mV | at IF = 0.1 mA | 1 | ||
| Forward Voltage | VF | 320 | mV | at IF = 1 mA | 1 | ||
| Forward Voltage | VF | 400 | mV | at IF = 10 mA | 1 | ||
| Forward Voltage | VF | 500 | mV | at IF = 30 mA | 1 | ||
| Forward Voltage | VF | 1000 | mV | at IF = 100 mA | 1 | ||
| Reverse Breakdown Voltage | V(BR)R | 30 | V | at IR = 100 µA | 1 | ||
| Reverse Current | IR | 2 | µA | at VR = 25 V | 1 | ||
| Total Capacitance | Ctot | 10 | pF | at VR = 1 V, f = 1 MHz | 1 | ||
| Reverse Recovery Time | trr | 5 | ns | at IF = 10 mA through IR = 10 mA to IR = 1 mA, RL = 100 Ω | 1 |
CAD (KiCad official)
- Symbol:
BAT54CE - Footprint:
Package_TO_SOT_SMD:SOT-523 - 3D model: SOT-523, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.8 mm nominal SOT-523 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files:
bat54ce-etched.step/bat54ce-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bat54ce.step/bat54ce.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ST(Semtech) datasheet (2 pp, sha256
6c6f46cf54dde28b, retrieved 2026-11-05, 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).