component
BZX84B27
Public Made by Adomby adom
MSKSEMI Zener Diodes, SOT-23. 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
markdownBZX84B27
MSKSEMI · Zener Diodes · SOT-23
BZX84B27 from MSKSEMI, in a SOT-23. 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 of the 27V Zener diode (VZ 26.46-27.54V at IZT=2mA), per the SOT-23 pin configuration diagram. |
| 2 | NC | unconnected | Shown in the pin configuration diagram as an unconnected terminal with no internal connection to the diode. |
| 3 | K | passive | Cathode of the Zener diode, per the pin configuration diagram; power dissipation is 300mW maximum. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| Package | SOT-23 |
| 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 |
|---|---|---|---|---|---|---|---|
| Zener Voltage (nominal) | VZ | 26.46 | 27 | 27.54 | V | @IZT=2 mA (row IZT) | 3 |
| Maximum Zener Impedance | ZZT | 80 | Ω | @IZT=2 mA (row IZT) | 3 | ||
| Maximum Zener Impedance | ZZK | 300 | Ω | @IZK=0.5 mA (row IZK) | 3 | ||
| Maximum Reverse Current | IR | 0.1 | μA | @VR=18.9 V (row VR) | 3 | ||
| Typical Temperature Coefficient | 21.4 | 25.3 | mV/°C | Table header: @IZT=5 mA | 3 | ||
| Forward Voltage | VF | 0.9 | V | @ IF = 10mA (Note 2: pulsed) | 2 | ||
| Power Dissipation | Pd | 300 | mW | Ta=25 ℃; Note 1: device terminals kept at ambient temperature | 2 | ||
| Thermal Resistance from Junction to Ambient | RθJA | 417 | ℃ /W | Ta=25 ℃ | 2 | ||
| Junction Temperature | Tj | 150 | ℃ | Ta=25 ℃ | 2 | ||
| Storage Temperature Range | Tstg | -55 | 150 | ℃ | Ta=25 ℃ | 2 |
CAD (KiCad official)
- Symbol:
BZX84B27 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
bzx84b27-etched.step/bzx84b27-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzx84b27.step/bzx84b27.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MSKSEMI datasheet (6 pp, sha256
6b9c976e79ea5c0b, retrieved 2026-10-18, 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).