component
BZX84B24
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Yangzhou Yangjie Elec Tech Zener Diodes, SOT-23(TO-236). 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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Contents
README
markdownBZX84B24
Yangzhou Yangjie Elec Tech · Zener Diodes · SOT-23(TO-236)
BZX84B24 from Yangzhou Yangjie Elec Tech, in a SOT-23(TO-236). 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 24V Zener (Vz 23.52V min to 24.5V max at Izt=5mA), connected to the diode's anode in the pin 1 symbol; marking code Y9. |
| 2 | NC | unconnected | No internal connection shown in the SOT-23 symbol; pin 2 is not wired to the diode. |
| 3 | K | passive | Cathode of the Zener diode, which is positive in reverse breakdown; power dissipation is limited to 350mW and forward voltage is 0.9V max at IF=10mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Yangzhou Yangjie Elec Tech |
| Package | SOT-23(TO-236) |
| 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 |
|---|---|---|---|---|---|---|---|
| Nominal Zener Voltage | Vz | 23.52 | 24 | 24.5 | V | Izt=5mA | 2 |
| Maximum Zener Impedance | ZZT | 70 | Ω | @IZT=5mA | 2 | ||
| Maximum Zener Impedance (knee) | ZZk | 250 | Ω | @IZk=1mA | 2 | ||
| Reverse Leakage Current | IR | 0.1 | uA | VR=16.8V | 2 | ||
| Maximum Forward Voltage | VF | 0.9 | V | IF=10mA | 1 | ||
| Power Dissipation | PD | 350 | mW | Ta=25℃ | 1 | ||
| Peak Forward Surge Current | IFSM | 2 | A | Ta=25℃ | 1 | ||
| Thermal Resistance | RthJA | 357 | ℃/W | 1 | |||
| Operation Temperature | TJ | -55 | 150 | ℃ | 1 | ||
| Storage Temperature Range | TSTG | -55 | 150 | ℃ | 1 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | ● Terminals: Tin plated leads, solderable per J-STD-002 and JESD22-B102 | 1 |
CAD (KiCad official)
- Symbol:
BZX84B24 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23(TO-236) (KiCad packages3D, STEP)
- 3D model files:
bzx84b24-etched.step/bzx84b24-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzx84b24.step/bzx84b24.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Yangzhou Yangjie Elec Tech datasheet (5 pp, sha256
81a9a86e22a71f29, retrieved 2026-10-23, 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).