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Contents

README

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JY2126AX

Shenzhen JingYang · LED Drivers · SOT-23-6

JY2126AX from Shenzhen JingYang, in a SOT-23-6. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 VCC power_in Supply voltage input. Recommended operating voltage ≤30 V (typ), absolute max 45 V. Startup current ~12 µA at VCC=2 V; operating current ~26 µA at VCC=2.2 V; clamp current 600 µA at VCC=10 V. Place decoupling to GND close to the pin.
2 GND power_in Chip ground. Also the source return for the internal D1/D2 power switches.
3 NC unconnected No connection (悬空脚). Leave floating.
4 D1 output First internal switch drain (第一开关驱动). Open-drain output to the first LED string. Rdson typ 2.2 Ω (max 3 Ω) at 300 mA sink; recommended stand-off voltage 40 V; minimum peak current 60 mA. Absolute max D1/D2 voltage 40 V (limit -0.3 to +40 V).
5 NC unconnected No connection (悬空脚). Leave floating.
6 D2 output Second internal switch drain (第二开关驱动). Open-drain output to the second LED string. Same electrical envelope as D1: Rdson typ 2.2 Ω at 300 mA, recommended stand-off 40 V, peak current ≥60 mA.

Key specifications

Parameter Value
Manufacturer Shenzhen JingYang
Package SOT-23-6
Category LED-drv
Pins 6

Ordering variants

Same part, different packaging or reel option.

  • JY2126AAX
  • JY2126ABX
  • JY2126AUX

CAD (KiCad official)

  • Symbol: JY2126AX
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: jy2126ax-etched.step / jy2126ax-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); jy2126ax.step / jy2126ax.glb are the bare package body.

Provenance

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

  • Datasheet: Shenzhen JingYang datasheet (8 pp, sha256 21a7249e35985af0, retrieved 2026-08-17, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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).

Datasheet PDF