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BZV49-C39

Public Made by Adom

by adom

Nexperia Zener Diodes, SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BZV49-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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bzv49-c39.step / bzv49-c39.glb are 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, primary claude-sonnet-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