component
BZB784-C3V9
Public Made by Adomby adom
Nexperia Zener Diodes, SOT-323(SC-70). Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 7d ago |
| viewers | 7d ago |
| bzb784-c3v9-etched.glb | 7d ago |
| bzb784-c3v9-etched.step | 7d ago |
| bzb784-c3v9-hero.glb | 7d ago |
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| bzb784-c3v9.lbr | 7d ago |
| bzb784-c3v9.step | 7d ago |
| package.json | 7d ago |
| page.json | 7d ago |
| README.md | 7d ago |
BZB784-C3V9
Nexperia · Zener Diodes · SOT-323(SC-70)
BZB784-C3V9 from Nexperia, in a SOT-323(SC-70). 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 | cathode | passive | Cathode of the first voltage regulator diode; the datasheet gives no pin-specific limit beyond the device totals (Ptot 350 mW with 2 diodes loaded, 180 mW with 1 diode loaded, IF max 200 mA). |
| 2 | cathode | passive | Cathode of the second voltage regulator diode; the datasheet gives no pin-specific limit beyond the device totals (Ptot 350 mW with 2 diodes loaded, 180 mW with 1 diode loaded, IF max 200 mA). |
| 3 | common anode | passive | Common anode shared by both diodes, connecting to the anode side of the two cathode pins 1 and 2 in the SOT323 (SC-70) package. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Nexperia |
| Package | SOT-323(SC-70) |
| 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 |
|---|---|---|---|---|---|---|---|
| Continuous forward current | IF | 200 | mA | 3 | |||
| Non-repetitive peak reverse current | IZSM | 6 | A | tp = 100 μs; square wave; Tamb = 25 °C; prior to surge | 5 | ||
| Total power dissipation (2 diodes loaded) | Ptot | 350 | mW | Tamb = 25 °C; 2 diodes loaded; note 1 | 3 | ||
| Total power dissipation (1 diode loaded) | Ptot | 180 | mW | Tamb = 25 °C; 1 diode loaded | 3 | ||
| Non-repetitive peak reverse dissipation | PZSM | 40 | W | tp = 100 μs; square wave; Tamb = 25 °C; prior to surge | 3 | ||
| Storage temperature | Tstg | -65 | 150 | °C | 3 | ||
| Junction temperature | Tj | 150 | °C | 3 | |||
| Thermal resistance junction to soldering point (2 diodes loaded) | Rth j-s | 140 | K/W | 2 diodes loaded; note 1 | 4 | ||
| Thermal resistance junction to soldering point (1 diode loaded) | Rth j-s | 265 | K/W | 1 diode loaded; note 1 | 4 | ||
| Thermal resistance junction to ambient (2 diodes loaded) | Rth j-a | 355 | K/W | 2 diodes loaded; note 2 | 4 | ||
| Thermal resistance junction to ambient (1 diode loaded) | Rth j-a | 680 | K/W | 1 diode loaded; note 2 | 4 | ||
| Forward voltage | VF | 0.9 | V | IF = 10 mA; see Fig.2 | 4 | ||
| Reverse current | IR | 3 | μA | VR = 1 V | 4 | ||
| Working voltage | VZ | 3.7 | 4.1 | V | at IZ = 5 mA; Tj = 25 °C | 5 |
CAD (KiCad official)
- Symbol:
BZB784-C3V9 - Footprint:
Package_TO_SOT_SMD:SOT-323_SC-70 - 3D model: SOT-323(SC-70) (KiCad packages3D, STEP)
- 3D model files:
bzb784-c3v9-etched.step/bzb784-c3v9-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzb784-c3v9.step/bzb784-c3v9.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Nexperia datasheet (9 pp, sha256
3f7233f6a26109d3, retrieved 2026-10-20, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).