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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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docs	Publish 0.1.0 · Ray	4h ago
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1n4148w-aq-etched.glb	Publish 0.1.0 · Ray	4h ago
1n4148w-aq-etched.step	1n4148w-aq: factory component page (tier=lcsc) · Ray	4h ago
1n4148w-aq-hero.glb	1n4148w-aq: hero GLB from the etched model (keeps the MPN mark) · Ray	4h ago
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1n4148w-aq.step	Publish 0.1.0 · Ray	4h ago
package.json	Publish 0.1.0 · Ray	4h ago
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README.md	Publish 0.1.0 · Ray	4h ago

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