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Generated by kicad-footprint-generator · KiCad file format 20260206

Name	Last commit message	Last updated
docs	Publish 0.1.0 · Ray	2d ago
viewers	bas29: viewers · Ray	2d ago
bas29-etched.glb	Publish 0.1.0 · Ray	2d ago
bas29-etched.step	bas29: factory component page (tier=mfr) · Ray	2d ago
bas29-hero.glb	bas29: hero GLB from the etched model (keeps the MPN mark) · Ray	2d ago
bas29-hero.overlay.json	Publish 0.1.0 · Ray	2d ago
bas29.glb	Publish 0.1.0 · Ray	2d ago
bas29.kicad_mod	Publish 0.1.0 · Ray	2d ago
bas29.kicad_sym	Publish 0.1.0 · Ray	2d ago
bas29.lbr	Publish 0.1.0 · Ray	2d ago
bas29.step	Publish 0.1.0 · Ray	2d ago
package.json	Publish 0.1.0 · Ray	2d ago
page.json	Set visibility: public · Ray	2d ago
README.md	Publish 0.1.0 · Ray	2d ago

BAS29

Nexperia · Avalanche Diodes · SOT-23

BAS29 from Nexperia, in a SOT-23. 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	A	passive	Anode of the general purpose switching diode (VR max. 90 V, IF max. 250 mA).
2	n.c.	unconnected	Not connected.
3	K	passive	Cathode of the general purpose switching diode (VR max. 90 V, IF max. 250 mA).

Key specifications

Parameter	Value
Manufacturer	Nexperia
Package	SOT-23
Category	Diodes
Pins	3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter	Symbol	Min	Max	Unit	Conditions	Page
Repetitive peak reverse voltage	VRRM		110	V		2
Reverse voltage	VR		90	V		2
Forward current	IF		250	mA		2
Forward current (second row)	IF		150	mA		2
Non-repetitive peak forward current	IFSM		10	A	tp = 1 µs; square wave; Tj(init) = 25 °C	2
Non-repetitive peak forward current	IFSM		4	A	tp = 100 µs; square wave; Tj(init) = 25 °C	2
Non-repetitive peak forward current	IFSM		0.75	A	tp = 1 s; square wave; Tj(init) = 25 °C	2
Repetitive peak forward current	IFRM		600	mA		2
Total power dissipation	Ptot		250	mW	Tamb ≤ 25 °C; device mounted on an FR4 printed-circuit board	2
Junction temperature	Tj		150	°C		2
Storage temperature	Tstg	-65	150	°C		2
Thermal resistance junction to ambient	Rth(j-a)		500	K/W	Device mounted on an FR4 printed-circuit board	3
Thermal resistance junction to solder point	Rth(j-sp)		360	K/W		3
Reverse breakdown voltage	V(BR)R	120	170	V	IR = 1 mA; Tj = 25 °C	3
Forward voltage	VF		750	mV	IF = 10 mA; Tj = 25 °C	3
Forward voltage	VF		840	mV	IF = 50 mA; Tj = 25 °C	3
Forward voltage	VF		900	mV	IF = 100 mA; Tj = 25 °C	3
Forward voltage	VF		1	V	IF = 200 mA; Tj = 25 °C	3
Forward voltage	VF		1.25	V	IF = 400 mA; Tj = 25 °C	3
Reverse current	IR		100	nA	VR = 90 V; Tj = 25 °C	3
Reverse current	IR		100	µA	VR = 90 V; Tj = 150 °C	3
Diode capacitance	Cd		35	pF	VR = 0 V; f = 1 MHz; Tamb = 25 °C	3
Reverse recovery time	trr		50	ns	IF = 30 mA; IR = 30 mA; RL = 100 Ω; IR(meas) = 3 mA; Tamb = 25 °C	3
Peak reverse recovery current	IRM		600	mA		3

CAD (KiCad official)

Symbol: BAS29
Footprint: Package_TO_SOT_SMD:SOT-23
3D model: SOT-23 (KiCad packages3D, STEP)
3D model files: bas29-etched.step / bas29-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bas29.step / bas29.glb are the bare package body.

Provenance

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

Datasheet: Nexperia datasheet (9 pp, sha256 87bb5b01b0a5ddbb, retrieved 2026-10-22, tier: manufacturer)
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