component

SMAJ5931B-TP

Public Made by Adom

by adom

MCC(Micro Commercial Components) Zener Diodes, SMA. 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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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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SMAJ5931B-TP

MCC(Micro Commercial Components) · Zener Diodes · SMA

SMAJ5931B-TP from MCC(Micro Commercial Components), in a SMA. 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 MCC(Micro Commercial Components)
Package SMA
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 tolerance (B suffix) VZ -5 5 % VZ tolerance ±5% for the B-suffix part 1
Maximum dynamic impedance ZZT 12 Ω @ IZT = 20.8 mA 2
Maximum knee impedance ZZK 650 Ω @ IZK = 0.25 mA 2
Maximum reverse current IR 0.5 µA @ VR = 13.7 V 2
Maximum forward voltage VF 1.5 V IF = 200 mA 1
Power dissipation PD 1.5 W TL ≤ 75°C 1
Operating junction temperature range TJ -65 150 °C 1
Storage temperature range TSTG -65 150 °C 1
Zener voltage (nominal) VZ 18 V Test current IZT = 20.8 mA 2
Thermal resistance junction to lead 50 °C/W Junction to lead; Note 3 (mounted on PCB with recommended pad layout) 1
Thermal resistance junction to ambient 83 °C/W Junction to ambient; Note 3 (mounted on PCB with recommended pad layout) 1

CAD (KiCad official)

  • Symbol: SMAJ5931B-TP
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA (KiCad packages3D, STEP)
  • 3D model files: smaj5931b-tp-etched.step / smaj5931b-tp-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smaj5931b-tp.step / smaj5931b-tp.glb are the bare package body.

Provenance

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

  • Datasheet: MCC(Micro Commercial Components) datasheet (4 pp, sha256 b56617b0c7050e8b, retrieved 2026-10-21, 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