component
MMBZ5245B
Public Made by Adomby adom
Slkor(SLKORMICRO Elec.) 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
markdownMMBZ5245B
Slkor(SLKORMICRO Elec.) · Zener Diodes · SOT-23
MMBZ5245B from Slkor(SLKORMICRO Elec.), 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 zener diode, per the connection diagram on page 1 (VF 0.9 V at IF=10mA). |
| 2 | NC | unconnected | No connection, marked 2 NC in the connection diagram. |
| 3 | K | passive | Cathode of the zener diode, per the connection diagram on page 1 (VZ 15 V nominal, 14.25 to 15.75 V at IZT=8.5 mA for MMBZ5245B). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Slkor(SLKORMICRO Elec.) |
| 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 | VZ | 14.25 | 15 | 15.75 | V | @IZT=8.5mA | 3 |
| Test Current | IZT | 8.5 | mA | 3 | |||
| Maximum Zener Impedance | ZZT | 16 | Ω | @IZT | 3 | ||
| Maximum Zener Impedance (knee) | ZZK | 600 | Ω | @IZK=0.25mA | 3 | ||
| Maximum Reverse Leakage Current | IR | 0.1 | μA | VR=11V | 3 | ||
| Reverse Voltage | VR | 11 | V | for IR leakage | 3 | ||
| Forward Voltage | VF | 0.9 | V | IF=10mA | 1 | ||
| Power Dissipation | Pd | 350 | mW | Ta=25℃ | 1 | ||
| Thermal Resistance, Junction to Ambient Air | RθjA | 357 | ℃/W | 1 | |||
| Operating and Storage Temperature Range | Tj, Tstg | -65 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
MMBZ5245B - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
mmbz5245b-etched.step/mmbz5245b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mmbz5245b.step/mmbz5245b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Slkor(SLKORMICRO Elec.) datasheet (4 pp, sha256
8096af577e1c32df, retrieved 2026-10-22, 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).