component
BZV49-C39
Public Made by Adomby adom
Nexperia Zener Diodes, SOT-89-3. 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
markdownBZV49-C39
Nexperia · Zener Diodes · SOT-89-3
BZV49-C39 from Nexperia, in a SOT-89-3. 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 | A | passive | Anode of the voltage regulator diode (pin 1, SOT89). |
| 2 | K | passive | Cathode of the voltage regulator diode (pin 2, SOT89), connected to the collector pad for heat transfer. |
| 3 | A | passive | Anode of the voltage regulator diode (pin 3, SOT89). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Nexperia |
| Package | SOT-89-3 |
| 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 |
|---|---|---|---|---|---|---|---|
| Working voltage | VZ | 37 | 41 | V | IZtest = 2 mA; Tj = 25 °C | 6 | |
| Differential resistance | rdif | 130 | Ω | at IZtest = 2 mA; Tj = 25 °C | 6 | ||
| Differential resistance (typ) | rdif | 40 | Ω | at IZtest = 2 mA; Tj = 25 °C | 6 | ||
| Temperature coefficient | SZ | 33.4 | 36.4 | 41.2 | mV/K | at IZtest = 2 mA; Tj = 25 °C | 6 |
| Diode capacitance | Cd | 45 | pF | f = 1 MHz; VR = 0 V | 6 | ||
| Reverse current | IR | 0.05 | µA | VR = 27.3 V; Tj = 25 °C | 6 | ||
| Non-repetitive peak reverse current | IZSM | 0.7 | A | tp = 100 μs; Tamb = 25 °C | 6 | ||
| Forward voltage | VF | 1 | V | IF = 50 mA | 4 | ||
| Continuous forward current | IF | 250 | mA | 4 | |||
| Total power dissipation | Ptot | 1 | W | Tamb = 25 °C; ceramic substrate 2.5 cm2, 0.7 mm | 4 | ||
| Non-repetitive peak reverse power dissipation | PZSM | 40 | W | tp = 100 μs; square wave; Tj = 25 °C prior to surge | 4 | ||
| Storage temperature | Tstg | -65 | 150 | °C | 4 | ||
| Junction temperature | Tj | 150 | °C | 4 | |||
| Thermal resistance junction to tie-point | Rth(j-tp) | 15 | K/W | 7 | |||
| Thermal resistance junction to ambient | Rth(j-a) | 125 | K/W | ceramic substrate 2.5 cm2, 0.7 mm | 7 |
CAD (KiCad official)
- Symbol:
BZV49-C39 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
bzv49-c39-etched.step/bzv49-c39-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzv49-c39.step/bzv49-c39.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Nexperia datasheet (11 pp, sha256
d11cb65034cc8cae, retrieved 2026-10-23, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).