component
BZX58550-C6V8-QX
Public Made by Adomby adom
Nexperia Zener Diodes, SOD-523. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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BZX58550-C6V8-QX
Nexperia · Zener Diodes · SOD-523
BZX58550-C6V8-QX from Nexperia, in a SOD-523. 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 of the voltage regulator diode; the marking bar on the package indicates the cathode. |
| 2 | A | passive | Anode of the voltage regulator diode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Nexperia |
| Package | SOD-523 |
| 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 |
|---|---|---|---|---|---|---|---|
| Series tolerance (working voltage) | -5 | 5 | % | Series tolerance, approximately ±5 % (Features and benefits); series-level, not specific to C6V8 | 1 | ||
| Working voltage | VZ | 6.46 | 7.14 | V | 4 | ||
| Differential resistance | rdiff | 80 | Ω | IZ = 50 µA | 4 | ||
| Differential resistance | rdiff | 15 | Ω | IZ = 1 mA | 4 | ||
| Reverse current | IR | 0.1 | µA | IZ = 5 mA; VR = 5.1 V | 4 | ||
| Temperature coefficient | SZ | 1.2 | 4.5 | mV/K | 4 | ||
| Diode capacitance | Cd | 100 | pF | f = 1 MHz; VR = 0 V | 4 | ||
| Forward voltage | VF | 0.9 | V | IF = 10 mA; pulse test tp ≤ 300 µs; δ ≤ 0.02 | 4 | ||
| Forward current | IF | 200 | mA | 3 | |||
| Non-repetitive peak reverse power dissipation | PZSM | 40 | W | tp = 100 µs; square wave; Tj = 25 °C; prior to surge | 3 | ||
| Total power dissipation | Ptot | 300 | mW | Tamb ≤ 25 °C; device mounted on FR4 PCB, approximately 35 mm² Cu area at cathode tab | 3 | ||
| Junction temperature | Tj | 150 | °C | 3 | |||
| Ambient temperature | Tamb | -55 | 150 | °C | 3 | ||
| Storage temperature | Tstg | -65 | 150 | °C | 3 | ||
| Thermal resistance from junction to ambient | Rth(j-a) | 350 | K/W | in free air; device mounted on FR4 PCB, approximately 35 mm² Cu area at cathode tab | 3 | ||
| Thermal resistance from junction to solder point | Rth(j-sp) | 65 | K/W | soldering point of cathode tab | 3 |
CAD (KiCad official)
- Symbol:
BZX58550-C6V8-QX - Footprint:
Diode_SMD:D_SOD-523 - 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files:
bzx58550-c6v8-qx-etched.step/bzx58550-c6v8-qx-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzx58550-c6v8-qx.step/bzx58550-c6v8-qx.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Nexperia datasheet (10 pp, sha256
070e03b7489099cb, retrieved 2026-10-15, 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).
# BZX58550-C6V8-QX
**Nexperia** · Zener Diodes · SOD-523
BZX58550-C6V8-QX from Nexperia, in a SOD-523. 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 of the voltage regulator diode; the marking bar on the package indicates the cathode. |
| 2 | A | passive | Anode of the voltage regulator diode. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Nexperia |
| Package | SOD-523 |
| 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 |
|---|---|---|---|---|---|---|---|
| Series tolerance (working voltage) | | -5 | | 5 | % | Series tolerance, approximately ±5 % (Features and benefits); series-level, not specific to C6V8 | 1 |
| Working voltage | VZ | 6.46 | | 7.14 | V | | 4 |
| Differential resistance | rdiff | | | 80 | Ω | IZ = 50 µA | 4 |
| Differential resistance | rdiff | | | 15 | Ω | IZ = 1 mA | 4 |
| Reverse current | IR | | | 0.1 | µA | IZ = 5 mA; VR = 5.1 V | 4 |
| Temperature coefficient | SZ | 1.2 | | 4.5 | mV/K | | 4 |
| Diode capacitance | Cd | | | 100 | pF | f = 1 MHz; VR = 0 V | 4 |
| Forward voltage | VF | | | 0.9 | V | IF = 10 mA; pulse test tp ≤ 300 µs; δ ≤ 0.02 | 4 |
| Forward current | IF | | | 200 | mA | | 3 |
| Non-repetitive peak reverse power dissipation | PZSM | | | 40 | W | tp = 100 µs; square wave; Tj = 25 °C; prior to surge | 3 |
| Total power dissipation | Ptot | | | 300 | mW | Tamb ≤ 25 °C; device mounted on FR4 PCB, approximately 35 mm² Cu area at cathode tab | 3 |
| Junction temperature | Tj | | | 150 | °C | | 3 |
| Ambient temperature | Tamb | -55 | | 150 | °C | | 3 |
| Storage temperature | Tstg | -65 | | 150 | °C | | 3 |
| Thermal resistance from junction to ambient | Rth(j-a) | | | 350 | K/W | in free air; device mounted on FR4 PCB, approximately 35 mm² Cu area at cathode tab | 3 |
| Thermal resistance from junction to solder point | Rth(j-sp) | | | 65 | K/W | soldering point of cathode tab | 3 |
## CAD (KiCad official)
- Symbol: `BZX58550-C6V8-QX`
- Footprint: `Diode_SMD:D_SOD-523`
- 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files: `bzx58550-c6v8-qx-etched.step` / `bzx58550-c6v8-qx-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bzx58550-c6v8-qx.step` / `bzx58550-c6v8-qx.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Nexperia datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590335130163314688) (10 pp, sha256 `070e03b7489099cb`, retrieved 2026-10-15, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).
[Datasheet PDF](docs/bzx58550-c6v8-qx-datasheet.pdf)