component
BZX38450-C10-QX
Public Made by Adomby adom
Nexperia Zener Diodes, SOD-323. 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
markdownBZX38450-C10-QX
Nexperia · Zener Diodes · SOD-323
BZX38450-C10-QX from Nexperia, in a SOD-323. 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 | K | passive | Cathode; the marking bar on the package indicates the cathode terminal. |
| 2 | A | passive | Anode of the voltage regulator diode, opposite the cathode (pin 1). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Nexperia |
| Package | SOD-323 |
| Category | Diodes |
| Pins | 2 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Working voltage VZ, minimum (BZX38450-C10-Q) | VZ | 9.5 | V | Tj = 25 °C unless otherwise specified; IZ per Table 8 column header | 4 | ||
| Working voltage VZ, maximum (BZX38450-C10-Q) | VZ | 10.5 | V | Tj = 25 °C unless otherwise specified; IZ per Table 8 column header | 4 | ||
| Differential resistance rdiff, maximum (first rdiff column) | rdiff | 150 | Ω | Tj = 25 °C unless otherwise specified; first rdiff column of Table 8 (IZ mapping not explicit) | 4 | ||
| Differential resistance rdiff, maximum (second rdiff column) | rdiff | 20 | Ω | Tj = 25 °C unless otherwise specified; second rdiff column of Table 8 (IZ mapping not explicit) | 4 | ||
| Reverse current IR, maximum | IR | 0.1 | µA | VR = 7.6 V (Table 8 VR column for this type) | 4 | ||
| Temperature coefficient SZ, minimum | SZ | 4.5 | mV/K | Tj = 25 °C unless otherwise specified | 4 | ||
| Temperature coefficient SZ, maximum | SZ | 8 | mV/K | Tj = 25 °C unless otherwise specified | 4 | ||
| Diode capacitance Cd, maximum | Cd | 90 | pF | f = 1 MHz; VR = 0 V | 4 | ||
| Series tolerance (approximate) | -5 | 5 | % | Series tolerance, stated as approximately ±5 % in Features | 1 | ||
| Forward voltage VF, maximum | VF | 0.9 | V | IF = 10 mA; pulse test tp ≤ 300 µs; δ ≤ 0.02 | 4 | ||
| Forward current IF, maximum | IF | 250 | mA | 3 | |||
| Non-repetitive peak reverse power dissipation PZSM, maximum | PZSM | 40 | W | tp = 100 µs; square wave; Tj = 25 °C; prior to surge | 3 | ||
| Total power dissipation Ptot, maximum | Ptot | 300 | mW | Tamb ≤ 25 °C; device mounted on FR4 PCB, single-sided copper, standard footprint | 3 | ||
| Junction temperature Tj, maximum | Tj | 150 | °C | 3 | |||
| Ambient temperature Tamb | Tamb | -55 | 150 | °C | 3 | ||
| Storage temperature Tstg | Tstg | -65 | 150 | °C | 3 | ||
| Thermal resistance junction to ambient Rth(j-a), maximum | Rth(j-a) | 415 | K/W | In free air; device mounted on FR4 PCB, single-sided copper, standard footprint | 3 | ||
| Thermal resistance junction to solder point Rth(j-sp), maximum | Rth(j-sp) | 110 | K/W | Soldering point of cathode tab | 3 |
CAD (KiCad official)
- Symbol:
BZX38450-C10-QX - Footprint:
Diode_SMD:D_SOD-323 - 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files:
bzx38450-c10-qx-etched.step/bzx38450-c10-qx-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzx38450-c10-qx.step/bzx38450-c10-qx.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Nexperia datasheet (10 pp, sha256
d3fb6f2f0e7015f7, retrieved 2026-10-22, 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).