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BZT52C5V1

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Diodes Inc 5.1 V 500 mW Zener diode, SOD-123. Vz 4.8-5.4 V @ 5 mA. Datasheet-verified.

componentdiodezenervoltage-referencesod-123diodes-incorporated
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docs bzt52c5v1: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
viewers viewers: adom-lbr per-slot symbol + footprint · Ray 2mo ago
bzt52c5v1-etched.fit.json bzt52c5v1: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
bzt52c5v1-etched.glb bzt52c5v1: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
bzt52c5v1-etched.step bzt52c5v1: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
BZT52C5V1.adom-lbr.json BZT52C5V1: validated Fusion/EAGLE library + adom-lbr hub, generated from this page's KiCad sources · Ray 2mo ago
bzt52c5v1.glb Publish 0.1.0 · Ray 2mo ago
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BZT52C5V1.lbr BZT52C5V1: validated Fusion/EAGLE library + adom-lbr hub, generated from this page's KiCad sources · Ray 2mo ago
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BZT52C5V1

Diodes Incorporated · Zener diode · SOD-123

500 mW surface-mount silicon planar Zener diode with a nominal 5.1 V breakdown, in a SOD-123 package. The Zener voltage is 4.8-5.4 V at a 5 mA test current, and the cathode band marks polarity. Used for voltage clamping, simple shunt references, and rail protection. Reverse-biased above Vz it conducts and holds the voltage; forward drop is 0.9 V.

Pinout

Pin Name Type Function
1 K passive Cathode of the Zener diode. Marked by the cathode band on the SOD-123 package top. Reverse-breakdown at nominally 5.1 V (4.8–5.4 V) when biased more positive than the anode by Vz; test current Izt = 5 mA, Zzt = 60 Ω, Ir ≤ 2.0 µA @ Vr = 2.0 V.
2 A passive Anode of the Zener diode. Forward voltage Vf = 0.9 V @ If = 10 mA; typical Zener operation reverse-biases anode negative with respect to cathode.

Key specifications

Parameter Value
Type Zener diode (silicon planar)
Zener voltage (Vz) 5.1 V nominal (4.8-5.4 V @ Iz = 5 mA)
Power dissipation 500 mW
Test current (Iz) 5 mA
Forward voltage (Vf) 0.9 V
Package SOD-123
Body (L×W×H) 2.65 × 1.55 × 1.35 mm

Ordering variants

Same part, different packaging or reel option.

  • BZT52C5V1-7-F (SOD-123, 7" reel)
  • BZT52C5V1-13-F (SOD-123, 13" reel)

CAD (KiCad official)

  • Symbol: Device:D_Zener
  • Footprint: Diode_SMD:D_SOD-123
  • 3D model: SOD-123 (KiCad packages3D)
  • 3D model files: bzt52c5v1-etched.step / bzt52c5v1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bzt52c5v1.step / bzt52c5v1.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (5 pp, sha256 0fbd7d137524820f, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude) — every pin and dimension is cited to a datasheet page; refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF