component

BZT52B39S

Public Made by Adom

by adom

Yangzhou Yangjie Elec Tech Zener Diodes, SOD-323(SC-90). Diode: pin 1 is the cathode (the banded end) by the KiCad diode-footprint convention, KiCad symbol/footprint/3D.

componentdiodesbzt52b39sfactory-2.0.0extractor-text

Changed since verified BZT52B39S

by Ray · last 4 Nov 2026 · 1 record · files changed since
SymbolFootprint3D modelPins

Verification log 1 record

4 Nov 2026RayPublished by the parts factory: tier lcsc, 2 pinschanged since
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: BZT52B39S · SOD-323(SC-90) · 2 pins
  • ✓copper: 2 copper pads, none touching another net
  • ✓datasheet: all 2 pin names found in the 7-page datasheet
  • ✓distributor: lcsc C20599991, digikey 1801-BZT52B39STR-ND, mouser 821-BZT52B39S
  • ✓family: D_SOD-323
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-4a2j9kwj/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 2 pins = 2 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 2 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files! bzt52b39s.kicad_sym✓ bzt52b39s.kicad_mod✓ bzt52b39s.step
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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray
viewers bzt52b39s: symbol repaired (D_Zener, cathode pad 1) · Ray
bzt52b39s-etched.glb Publish 0.1.0 · Ray
bzt52b39s-etched.step bzt52b39s: factory component page (tier=lcsc) · Ray
bzt52b39s-hero.glb bzt52b39s: hero GLB from the etched model (keeps the MPN mark) · Ray
bzt52b39s-hero.overlay.json Publish 0.1.0 · Ray
bzt52b39s.glb Publish 0.1.0 · Ray
bzt52b39s.kicad_mod Publish 0.1.0 · Ray
bzt52b39s.kicad_sym bzt52b39s: symbol repaired (D_Zener, cathode pad 1) · Ray
bzt52b39s.lbr bzt52b39s: symbol repaired (D_Zener, cathode pad 1) · Ray
bzt52b39s.step Publish 0.1.0 · Ray
package.json Brief: a diode is polarised (pin 1 = cathode); the "Unpolarised two-terminal part" sentence was wrong · Ray
page.json brief: polarity sentence corrected · Ray
README.md Publish 0.1.0 · Ray
verification.json Verified: Published by the parts factory: tier lcsc, 2 pins · Ray

BZT52B39S

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

BZT52B39S 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 38.22 39 39.78 V IZT = 5 mA 3
Zener dynamic impedance ZZT 90 Ω IZT = 5 mA 3
Zener knee dynamic impedance ZZK 350 Ω IZK = 1.0 mA 3
Reverse current IR 0.1 μA VR = 29.0 V 3
Typical temperature coefficient 33.4 41.2 mV/℃ 3
Power dissipation PD 300 mW Ta=25℃ unless otherwise specified 1
Junction temperature TJ -55 150 ℃ Ta=25℃ unless otherwise specified 1
Storage temperature TSTG -55 150 ℃ Ta=25℃ unless otherwise specified 1
Forward voltage VF 0.9 V IF=10mA 1
Thermal resistance, junction-to-ambient RθJ-A 417 ℃/W Mounted on P.C.B. with 8mm*9mm copper pad areas 3
Thermal resistance, junction-to-case RθJ-C 334 ℃/W Mounted on P.C.B. with 8mm*9mm copper pad areas 3

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  Terminals：Tin plated leads, solderable per J-STD-002 and JESD22-B102 1

CAD (KiCad official)

  • Symbol: BZT52B39S
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323(SC-90) (KiCad packages3D, STEP)
  • 3D model files: bzt52b39s-etched.step / bzt52b39s-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bzt52b39s.step / bzt52b39s.glb are the bare package body.

Provenance

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

  • Datasheet: Yangzhou Yangjie Elec Tech datasheet (7 pp, sha256 966afa28e9a086ac, retrieved 2026-11-04, 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