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TCZM5V1BTR

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Tak Cheong Zener Diodes, LL-34. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

componentdiodestczm5v1btrfactory-2.0.0extractor-text

Verified TCZM5V1BTR

by Ray · last 30 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

30 Oct 2026RayPublished by the parts factory: tier lcsc, 2 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: TCZM5V1BTR · LL-34 · 2 pins
  • ✓copper: 2 copper pads, none touching another net
  • ✓datasheet: all 2 pin names found in the 6-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: D_MiniMELF
  • ✓files: 6 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-42tjttgq/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 1 records
  • •package_fit (skip): the datasheet dimensions give no height or body size to compare (datasheet p.5)
  • ✓pads: 2 pins = 2 pads
  • ✓pose: 1 STEP(s) Z-up, seated, centred
  • ✓symbol: 2 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ tczm5v1btr.kicad_sym✓ tczm5v1btr.kicad_mod✓ tczm5v1btr.step
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3D Model

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Symbol & Footprint

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PCB Footprint

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Datasheet

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Contents

README

markdown

TCZM5V1BTR

Tak Cheong · Zener Diodes · LL-34

TCZM5V1BTR from Tak Cheong, in a LL-34. 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 Tak Cheong
Package LL-34
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 (TCZM5V1B, ±2% tolerance suffix B) VZ 5 5.1 5.2 V @ IZT = 5 mA 1
Zener impedance ZZT ZZT 56 Ω @ IZT = 5 mA 1
Zener knee impedance ZZK ZZK 451 Ω @ IZK = 1 mA 1
Zener knee test current IZK (max) IZK 1 mA 1
Reverse current IR IR 1.8 A @ VR = 2 V 1
VZ tolerance (suffix B, ±2%) -2 2 % TCZMxxxB suffix 1
Power dissipation 500 mW TA = 25°C 1
Storage temperature range -65 175 °C 1
Operating junction temperature 175 °C 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
contacts tin  Matte Tin (Sn) Terminal Finish  Color band Indicates Negative Polarity 1

CAD (KiCad official)

  • Symbol: TCZM5V1BTR
  • Footprint: Diode_SMD:D_MiniMELF
  • 3D model: LL-34 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Tak Cheong datasheet (6 pp, sha256 259e51f960aecdb7, retrieved 2026-10-30, 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