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Ray Publish 0.1.0 5988657 5h ago

BZT52C27-WP

SY(顺烨) · IC · SOD-123

BZT52C27-WP from SY(顺烨), in a SOD-123. 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 terminal marked with the cathode bar on the body; it goes positive in zener reverse breakdown (VZ 25.1V min, 27V nom, 28.9V max at IZT=2.5mA for the C27).
2 A passive Anode, the terminal opposite the cathode bar; forward voltage is 0.9V at IF=10mA and power dissipation is max 500mW.

Key specifications

Parameter Value
Manufacturer SY(顺烨)
Package SOD-123
Category
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 (min, Table 2 row for BZT52C27, marking WP) VZT 25.1 V at IZT; VZT tested with pulses (20 ms) 2
Zener voltage (nominal, Table 2 row for BZT52C27) VZT 27 V at IZT; VZT tested with pulses (20 ms) 2
Zener voltage (max, Table 2 row for BZT52C27) VZT 28.9 V at IZT; VZT tested with pulses (20 ms) 2
Maximum dynamic impedance (Table 2 row for BZT52C27) ZZT 70 Ω at IZT 2
Total power dissipation Pd 500 mW 1
Forward voltage VF 0.9 V @ IF=10mA 1
Junction temperature Tj 150 ℃ 1
Storage temperature range Tstg -65 150 ℃ 1
Typical thermal resistance, junction to ambient RθJA 305 ℃/W P.C.B. mounted with 2.0" X 2.0" (5 X 5 cm) copper area pads (note 1) 1

CAD (KiCad official)

  • Symbol: BZT52C27-WP
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: bzt52c27-wp-etched.step / bzt52c27-wp-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bzt52c27-wp.step / bzt52c27-wp.glb are the bare package body.

Provenance

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

  • Datasheet: SY(顺烨) datasheet (3 pp, sha256 64def51f91744e17, retrieved 2026-10-17, tier: lcsc)
  • 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