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Contents

README

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ZR40402F50TA

Diodes Incorporated · Voltage References · SOT-23

ZR40402F50TA from Diodes Incorporated, in a SOT-23. 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 NC unconnected Pin 1 is left floating or connected to pin 2 (GND), per the datasheet's pin assignment note.
2 GND power_in Ground reference pin (Gnd) of the 5.0 V shunt reference; reverse current is specified from 60µA to 15mA recommended, 25mA absolute maximum.
3 VR passive Reference voltage pin (VR) of 5.0 V nominal (4.95 to 5.05 V at IR = 150µA, 1% tolerance); reverse current 25 mA absolute maximum.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-23
Category Power Management ICs
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
Reverse breakdown voltage tolerance (2% grade) VR -2 2 % IR = 150µA 4
Reverse breakdown voltage (nominal) VR 5 V IR = 150µA 2
Minimum operating current IMIN 30 60 µA 2
Recommended operating current IR 0.06 15 mA 2
Average reverse breakdown voltage temperature coefficient TC 20 100 ppm/°C -40 to 85°C, IR(MIN) to IR(MAX) 2
Average reverse breakdown voltage temperature coefficient TC 40 125 ppm/°C -40 to 125°C, IR(MIN) to IR(MAX) 2
Slope resistance RS 0.33 1.5 Ω 2
Reverse dynamic impedance ZR 0.4 1 Ω IR = 1mA, f = 100Hz, IAC = 0.1IR 2
Reverse current 25 mA 2
Forward current 25 mA 2
Operating temperature -55 125 °C 2
Storage temperature -55 125 °C 2
Power dissipation SOT23 330 mW TAMB = 25°C 2
Wideband noise voltage EN 105 µV(rms) IR = 1mA, f = 10Hz to 10kHz 2

CAD (KiCad official)

  • Symbol: ZR40402F50TA
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: zr40402f50ta-etched.step / zr40402f50ta-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); zr40402f50ta.step / zr40402f50ta.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (5 pp, sha256 bae1be3ac37e5d7b, retrieved 2026-10-22, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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