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TCMM5Z27V

Public Made by Adom

by adom

Tak Cheong Zener Diodes, SOD-523. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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TCMM5Z27V

Tak Cheong · Zener Diodes · SOD-523

TCMM5Z27V from Tak Cheong, in a SOD-523. 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 K passive Cathode of the 27V Zener (band indicates cathode); VZ 25.1V min to 28.9V max at IZT = 2 mA, with a maximum reverse leakage of 0.05 µA at VR = 18.9V.
2 A passive Anode of the Zener diode; forward voltage is 1V maximum at IF = 10 mA and power dissipation is limited to 200 mW at TA = 25°C.

Key specifications

Parameter Value
Manufacturer Tak Cheong
Package SOD-523
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
Zener Voltage VZ 25.1 27 28.9 V IZT = 2 mA 2
Zener Impedance ZZT 80 Ω @ IZT = 2 mA 2
Knee Zener Impedance ZZK 300 Ω @ IZK = 0.5 mA 2
Reverse Current IR 0.05 μA @ VR = 18.9 V 2
Forward Voltage VF 1 V IF = 10 mA, all types 2
Power Dissipation PD 200 mW TA = 25°C 1
Storage Temperature Range TSTG -55 150 °C TA = 25°C 1
Operating Temperature Range TOPR -55 150 °C TA = 25°C 1
Zener Test Current IZT 2 mA TA = 25°C 2
Knee Test Current IZK 0.5 mA TA = 25°C 2

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin ƒ Matte Tin(Sn) Lead Finish ƒ Band Indicates Cathode 1

CAD (KiCad official)

  • Symbol: TCMM5Z27V
  • Footprint: Diode_SMD:D_SOD-523
  • 3D model: SOD-523 (KiCad packages3D, STEP)
  • 3D model files: tcmm5z27v-etched.step / tcmm5z27v-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tcmm5z27v.step / tcmm5z27v.glb are the bare package body.

Provenance

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

  • Datasheet: Tak Cheong datasheet (5 pp, sha256 e8cd27777a272e97, retrieved 2026-10-22, tier: lcsc)
  • 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