component

1N4148W-AQ

Public Made by Adom

by adom

(DIOTEC) Switching Diodes, SOD-123F. 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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1N4148W-AQ

(DIOTEC) · Switching Diodes · SOD-123F

1N4148W-AQ from (DIOTEC), in a SOD-123F. 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 (DIOTEC)
Package SOD-123F
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
Forward voltage VF 0.715 V Tj = 25°C, IF = 1 mA 2
Forward voltage VF 0.855 V Tj = 25°C, IF = 10 mA 2
Forward voltage VF 1 V Tj = 25°C, IF = 50 mA 2
Forward voltage VF 1.25 V Tj = 25°C, IF = 150 mA 2
Leakage current IR 25 nA Tj = 25°C, VR = 20 V 2
Leakage current IR 1 µA Tj = 25°C, VR = 75 V 2
Leakage current IR 30 µA Tj = 150°C, VR = 20 V 2
Leakage current IR 50 µA Tj = 150°C, VR = 75 V 2
Reverse recovery time trr 4 ns IF = 10 mA through IR = 10 mA to IR = 1 mA 2
Typical thermal resistance junction to ambient RthA 312 K/W Mounted on P.C. board with 3 mm2 copper pad at each terminal 2
Power dissipation Ptot 400 mW Mounted on P.C. board with 3 mm2 copper pad at each terminal 1
Max. average forward current (DC) IFAV 150 mA Mounted on P.C. board with 3 mm2 copper pad at each terminal 1
Repetitive peak forward current IFRM 300 mA Mounted on P.C. board with 3 mm2 copper pad at each terminal 1
Non repetitive peak forward surge current IFSM 0.5 A tp ≤ 1 s 1
Non repetitive peak forward surge current IFSM 1 A tp ≤ 1 ms 1
Non repetitive peak forward surge current IFSM 4 A tp ≤ 1 µs 1
Reverse voltage VR 75 V 1
Repetitive peak reverse voltage VRRM 100 V 1
Junction temperature Tj -55 150 °C 1
Storage temperature TS -55 150 °C 1
Junction capacitance CT 2 pF VR = 0 V, f = 1 MHz 2

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 copper copper pad at each terminal 1

CAD (KiCad official)

  • Symbol: 1N4148W-AQ
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123F (KiCad packages3D, STEP)
  • 3D model files: 1n4148w-aq-etched.step / 1n4148w-aq-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 1n4148w-aq.step / 1n4148w-aq.glb are the bare package body.

Provenance

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

  • Datasheet: (DIOTEC) datasheet (3 pp, sha256 615a560e0263f8bf, retrieved 2026-10-17, 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