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BZT52C5V1SQ
Public Made by Adomby adom
JSMSEMI Zener Diodes, SOD-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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BZT52C5V1SQ
JSMSEMI · Zener Diodes · SOD-323
BZT52C5V1SQ from JSMSEMI, 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 of the zener diode, which is the positive-voltage side in reverse-breakdown regulation; the BZT52C5V1SQ has VZ 4.85 V min, 5.10 V typ, 5.36 V max at IZT = 5 mA. |
| 2 | A | passive | Anode of the zener diode, which is the reference side in reverse-breakdown regulation; the device is rated for 200 mW power dissipation at TA = 25°C. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | JSMSEMI |
| 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 |
|---|---|---|---|---|---|---|---|
| Zener voltage | VZ | 4.85 | 5.1 | 5.36 | V | @ IZT 5 mA | 2 |
| Temperature coefficient of zener voltage | TC | -2.7 | 1.2 | mV/°C | @ IZT 5 mA | 2 | |
| Maximum zener impedance | ZZT | 60 | Ω | @ IZT 5 mA | 2 | ||
| Maximum zener impedance | ZZK | 480 | Ω | @ IZK 1.0 mA | 2 | ||
| Maximum reverse current | IR | 2 | µA | @ VR 2.0 V | 2 | ||
| Voltage tolerance (C-series) | -5 | 5 | % | C-series, ±5% as printed in features | 1 | ||
| Power dissipation (collector) | PC | 200 | mW | @ TA = 25°C | 1 | ||
| Forward voltage | VF | 0.9 | V | @ IF=10mA | 1 | ||
| Thermal resistance, junction-to-ambient | RθJA | 625 | °C/W | 1 | |||
| Thermal resistance, junction-to-case | RθJC | 337 | °C/W | 1 | |||
| Junction temperature range | TJ | -55 | 150 | °C | 1 | ||
| Storage temperature range | TSTG | -65 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
BZT52C5V1SQ - Footprint:
Diode_SMD:D_SOD-323 - 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files:
bzt52c5v1sq-etched.step/bzt52c5v1sq-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzt52c5v1sq.step/bzt52c5v1sq.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: JSMSEMI datasheet (4 pp, sha256
e6292a43fa81410d, 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).
# BZT52C5V1SQ
**JSMSEMI** · Zener Diodes · SOD-323
BZT52C5V1SQ from JSMSEMI, 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 of the zener diode, which is the positive-voltage side in reverse-breakdown regulation; the BZT52C5V1SQ has VZ 4.85 V min, 5.10 V typ, 5.36 V max at IZT = 5 mA. |
| 2 | A | passive | Anode of the zener diode, which is the reference side in reverse-breakdown regulation; the device is rated for 200 mW power dissipation at TA = 25°C. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | JSMSEMI |
| 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 |
|---|---|---|---|---|---|---|---|
| Zener voltage | VZ | 4.85 | 5.1 | 5.36 | V | @ IZT 5 mA | 2 |
| Temperature coefficient of zener voltage | TC | -2.7 | | 1.2 | mV/°C | @ IZT 5 mA | 2 |
| Maximum zener impedance | ZZT | | | 60 | Ω | @ IZT 5 mA | 2 |
| Maximum zener impedance | ZZK | | | 480 | Ω | @ IZK 1.0 mA | 2 |
| Maximum reverse current | IR | | | 2 | µA | @ VR 2.0 V | 2 |
| Voltage tolerance (C-series) | | -5 | | 5 | % | C-series, ±5% as printed in features | 1 |
| Power dissipation (collector) | PC | | | 200 | mW | @ TA = 25°C | 1 |
| Forward voltage | VF | | | 0.9 | V | @ IF=10mA | 1 |
| Thermal resistance, junction-to-ambient | RθJA | | | 625 | °C/W | | 1 |
| Thermal resistance, junction-to-case | RθJC | | | 337 | °C/W | | 1 |
| Junction temperature range | TJ | -55 | | 150 | °C | | 1 |
| Storage temperature range | TSTG | -65 | | 150 | °C | | 1 |
## CAD (KiCad official)
- Symbol: `BZT52C5V1SQ`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `bzt52c5v1sq-etched.step` / `bzt52c5v1sq-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bzt52c5v1sq.step` / `bzt52c5v1sq.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [JSMSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590197773242175488) (4 pp, sha256 `e6292a43fa81410d`, retrieved 2026-10-23, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-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).
[Datasheet PDF](docs/bzt52c5v1sq-datasheet.pdf)