Loads when you scroll to it. Unloads after 5 minutes in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

PCB Footprint

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Loads when you scroll to it. Unloads after 5 minutes in the background.
Download PDF
Contents

README

markdown

1SMA4744_R1_00001

PANJIT International · Zener Diodes · SMA(DO-214AC)

1SMA4744_R1_00001 from PANJIT International, in a SMA(DO-214AC). 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 of the zener diode, marked by the color band on the package; connect to the positive side for reverse-biased zener regulation.
2 A passive Anode of the zener diode, the end opposite the color band.

Key specifications

Parameter Value
Manufacturer PANJIT International
Package SMA(DO-214AC)
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
Nominal Zener Voltage (min/max) Vz 14.25 15 15.75 V @ IZT = 17 mA 2
Zener Voltage Tolerance -5 5 % standard tolerance on nominal zener voltage (Note C) 1
Maximum Zener Impedance ZZT 14 Ω @ IZT = 17 mA 2
Maximum Zener Knee Impedance ZZK 700 Ω @ IZK = 0.25 mA 2
Max Reverse Leakage Current IR 0.1 uA @ VR = 11.4 V 2
Zener Test Current IZT 17 mA 2
Power Rating 1 W header: POWER 1 Watt 1

CAD (KiCad official)

  • Symbol: 1SMA4744_R1_00001
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
  • 3D model files: 1sma4744-r1-00001-etched.step / 1sma4744-r1-00001-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 1sma4744-r1-00001.step / 1sma4744-r1-00001.glb are the bare package body.

Provenance

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

  • Datasheet: PANJIT International datasheet (8 pp, sha256 7f70e66def791d5d, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-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