component
MMBZ5241BLT1G
Public Made by Adomby adom
onsemi 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
markdownMMBZ5241BLT1G
onsemi · Zener Diodes · SOT-23
MMBZ5241BLT1G from onsemi, 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 | ANODE | passive | Zener diode anode, per CASE 318 STYLE 8 pin 1 ANODE; the 225 mW rated part is a Zener voltage regulator with Vz nominal 11 V for MMBZ5241BLT1G. |
| 2 | NC | unconnected | No connection, as listed for pin 2 in the STYLE 8 outline and the Electrical Characteristics pinout (1-Anode, 2-NC, 3-Cathode). |
| 3 | CATHODE | passive | Zener diode cathode, per CASE 318 STYLE 8 pin 3 CATHODE; the cathode is indicated by the polarity band on the package. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse Zener Voltage (min) | VZ | 10.4 | V | @ IZT = 20 mA; pulse test, TA = 25°C (Note 3) | 3 | ||
| Reverse Zener Voltage (max) | VZ | 11.55 | V | @ IZT = 20 mA; pulse test, TA = 25°C (Note 3) | 3 | ||
| Maximum Zener Impedance | ZZT | 22 | Ω | @ IZT = 20 mA | 3 | ||
| Maximum Zener Impedance | ZZK | 600 | Ω | @ IZK = 0.25 mA | 3 | ||
| Reverse Leakage Current | IR | 2 | µA | @ VR = 8.4 V | 3 | ||
| Forward Voltage | VF | 0.9 | V | @ IF = 10 mA (note: VF = 0.9 V Max @ IF = 10 mA for all types) | 3 | ||
| Nominal Zener Voltage | VZ | 11 | V | @ IZT = 20 mA | 3 | ||
| Total Power Dissipation on FR-5 Board | PD | 225 | mW | TA = 25°C; FR-5 board (Note 1) | 1 | ||
| Power Derating above 25°C on FR-5 Board | 1.8 | mW/°C | derated above 25°C; FR-5 board (Note 1) | 1 | |||
| Total Power Dissipation on Alumina Substrate | PD | 300 | mW | TA = 25°C; alumina substrate (Note 2) | 1 | ||
| Power Derating above 25°C on Alumina Substrate | 2.4 | mW/°C | derated above 25°C; alumina substrate (Note 2) | 1 | |||
| Thermal Resistance, Junction-to-Ambient (FR-5 board) | RJA | 556 | °C/W | FR-5 board (Note 1) | 1 | ||
| Thermal Resistance, Junction-to-Ambient (alumina substrate) | RJA | 417 | °C/W | alumina substrate (Note 2) | 1 | ||
| Junction and Storage Temperature Range | TJ, Tstg | -65 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
MMBZ5241BLT1G - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
mmbz5241blt1g-etched.step/mmbz5241blt1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mmbz5241blt1g.step/mmbz5241blt1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (7 pp, sha256
f5bdb6eb025b64cd, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-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).