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Contents

Pinout
Key specifications
Electrical characteristics
CAD (KiCad official)
Provenance

README

markdown

2N4403

Foshan Blue Rocket Elec · Bipolar Transistors - BJT · TO-92

2N4403 from Foshan Blue Rocket Elec, in a TO-92. 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	Collector	passive	Collector of the PNP transistor; VCEO -40 V, VCBO -40 V, continuous collector current up to -600 mA.
2	Base	passive	Base of the PNP transistor; VEBO limit of -5.0 V to the emitter.
3	Emitter	passive	Emitter of the PNP transistor; VEBO limit of -5.0 V with respect to the base.

Key specifications

Parameter	Value
Manufacturer	Foshan Blue Rocket Elec
Package	TO-92
Category	Transistors
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
Collector to Base Voltage	VCBO		-40	V	Ta=25℃	2
Collector to Emitter Voltage	VCEO		-40	V	Ta=25℃	2
Emitter to Base Voltage	VEBO		-5	V	Ta=25℃	2
Collector Current - Continuous	IC		-600	mA	Ta=25℃	2
Collector Power Dissipation	PC		625	mW	Ta=25℃	2
Junction Temperature	Tj		150	℃	Ta=25℃	2
Storage Temperature Range	Tstg	-55	150	℃		2
Thermal Resistance, Junction to Ambient	RθJA		200	℃/W		2
Collector to Base Breakdown Voltage	VCBO		-40	V	IC=-0.1mA IE=0	2
Collector to Emitter Breakdown Voltage	VCEO		-40	V	IC=-1.0mA IB=0	2
Emitter to Base Breakdown Voltage	VEBO		-5	V	IE=-0.1mA IC=0	2
Collector Cut-Off Current	ICBO		-50	nA	VCB=-40V IE=0	2
Emitter Cut-Off Current	IEBO		-50	nA	VEB=-5V IC=0	2
DC Current Gain (1)	hFE(1)	100	300		VCE=-2.0V IC=-150mA	2
DC Current Gain (2)	hFE(2)	30			VCE=-1.0V IC=-0.1mA	2
DC Current Gain (3)	hFE(3)	60			VCE=-1.0V IC=-1.0mA	2
DC Current Gain (4)	hFE(4)	100			VCE=-1.0V IC=-10mA	2
DC Current Gain (5)	hFE(5)	20			VCE=-2.0V IC=-500mA	2
Collector to Emitter Saturation Voltage (1)	VCE(sat)(1)		-0.4	V	IC=-150mA IB=-15mA	2
Collector to Emitter Saturation Voltage (2)	VCE(sat)(2)		-0.75	V	IC=-500mA IB=-50mA	2
Base to Emitter Saturation Voltage (1)	VBE(sat)(1)	-0.95	-0.75	V	IC=-150mA IB=-15mA	2
Base to Emitter Saturation Voltage (2)	VBE(sat)(2)		-1.3	V	IC=-500mA IB=-50mA	2
Current Gain Bandwidth Product	fT	200		MHz	VCE=-10V IC=-20mA	2
Delay Time	td		15	ns	VCC=-30V IC=-150mA IB1=-15mA	2
Rise Time	tr		20	ns	VCC=-30V IC=-150mA IB1=-15mA	2
Storage Time	ts		225	ns	VCC=-30V IC=-150mA IB1=IB2=-15mA	2
Fall Time	tf		30	ns	VCC=-30V IC=-150mA IB1=IB2=-15mA	2

CAD (KiCad official)

Symbol: 2N4403
Footprint: Package_TO_SOT_THT:TO-92_Inline
3D model: TO-92 (KiCad packages3D, STEP)
3D model files: 2n4403-etched.step / 2n4403-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 2n4403.step / 2n4403.glb are the bare package body.

Provenance

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

Datasheet: Foshan Blue Rocket Elec datasheet (6 pp, sha256 e1bcea8fa29dd261, 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