component

BB172X

Public Made by Adom

by adom

NXP Semicon Diodes - Variable Capacitance, SOD-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BB172X

NXP Semicon · Diodes - Variable Capacitance · SOD-323

BB172X from NXP Semicon, 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 cathode passive Cathode of the variable capacitance diode, indicated by the marking bar on the package.
2 anode passive Anode of the variable capacitance diode.

Key specifications

Parameter Value
Manufacturer NXP Semicon
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
Reverse voltage VR 32 V 2
Peak reverse voltage 35 V peak value in series with a 10 k resistor 2
Forward current IF 20 mA 2
Storage temperature Tstg -55 150 C 2
Junction temperature Tj -55 125 C 2
Reverse current IR 10 nA VR = 30 V 2
Reverse current at high temperature IR 200 nA VR = 30 V; Tj = 85 C 2
Diode capacitance at 1 V Cd 34.65 42.35 pF f = 1 MHz; VR = 1 V 2
Diode capacitance at 28 V Cd 2.361 2.6 2.754 pF f = 1 MHz; VR = 28 V 2
Diode series resistance rs 0.65 0.8 f = 100 MHz; Cd = 30 pF 2
Diode capacitance ratio 1 V to 28 V Cd(1V)/Cd(28V) 13.5 15 f = 1 MHz 2
Diode capacitance ratio 1 V to 2 V Cd(1V)/Cd(2V) 1.3 f = 1 MHz 2
Diode capacitance ratio 25 V to 28 V Cd(25V)/Cd(28V) 1.08 f = 1 MHz 2

CAD (KiCad official)

  • Symbol: BB172X
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: bb172x-etched.step / bb172x-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bb172x.step / bb172x.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: NXP Semicon datasheet (8 pp, sha256 75efb9892760616d, retrieved 2026-10-26, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus off (skipped (clean text read)), 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