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BZT52B27SQ

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Yangzhou Yangjie Elec Tech Zener Diodes, SOD-323(SC-90). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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Contents

README

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BZT52B27SQ

Yangzhou Yangjie Elec Tech · Zener Diodes · SOD-323(SC-90)

BZT52B27SQ from Yangzhou Yangjie Elec Tech, in a SOD-323(SC-90). 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint.
2 A passive Anode.

Key specifications

Parameter Value
Manufacturer Yangzhou Yangjie Elec Tech
Package SOD-323(SC-90)
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 26.46 27 27.54 V at Izt = 2 mA, Ta=25℃ 2
Zener Test Current Izt 2 mA Ta=25℃ 2
Dynamic Impedance Zzt 80 Ω at Izt = 2 mA 2
Knee Impedance Zzk 300 Ω at Izk = 0.5 mA 2
Reverse Leakage Current IR 0.1 μA VR = 18.9 V 2
Typical Temperature Coefficient 21.4 25.3 mV/℃ at test current IZTC = 2 mA 2
Power Dissipation PD 300 mW Ta=25℃; derate above 25℃ ≤2.4 mW/℃; FR4 PCB 1
Storage Temperature Range Tstg -55 150 °C 1
Junction Temperature TJ -55 150 °C 1
Maximum Forward Voltage VF 0.9 V IF=10mAdc 1
Thermal Resistance Junction to Ambient Air RthJA 415 °C /W Device mounted on FR4 PCB 1.0 x 1.0 x 0.06 inch, single-sided copper, tin-plated, standard footprint 1

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
housing black 4. Body color: Black 5
contacts tin ● Terminals: Tin plated leads, solderable per J-STD￾002 and JESD22-B102 ● Polarity: Cathode line denotes the cathode end 1

CAD (KiCad official)

  • Symbol: BZT52B27SQ
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323(SC-90) (KiCad packages3D, STEP)
  • 3D model files: bzt52b27sq-etched.step / bzt52b27sq-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bzt52b27sq.step / bzt52b27sq.glb are the bare package body.

Provenance

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

  • Datasheet: Yangzhou Yangjie Elec Tech datasheet (6 pp, sha256 cbbc818cc904384b, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary cathode-band convention (convention), consensus off (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