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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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KTA1266

Foshan Blue Rocket Elec · Bipolar (BJT) · TO-92

KTA1266 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	B	passive	Base terminal of the PNP transistor; the datasheet gives an emitter-base limit of VEBO -5.0 V and a continuous base current of -50 mA.
2	C	passive	Collector terminal of the PNP transistor; limits are VCBO -50 V, VCEO -50 V, continuous IC -150 mA, and collector power dissipation PC 625 mW.
3	E	passive	Emitter terminal of the PNP transistor; the emitter-base voltage limit is VEBO -5.0 V.

Key specifications

Parameter	Value
Manufacturer	Foshan Blue Rocket Elec
Package	TO-92
Category	Transistors/Thyristors
Pins	3

Electrical characteristics

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

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Collector Cut-Off Current	ICBO			-0.1	μA	VCB=-50V IE=0	2
Emitter Cut-Off Current	IEBO			-0.1	μA	VEB=-5.0V IC=0	2
DC Current Gain hFE(1)	hFE(1)	70		400		VCE=-6.0V IC=-2.0mA	2
DC Current Gain hFE(2)	hFE(2)	25				VCE=-6.0V IC=-150mA	2
Collector to Emitter Saturation Voltage	VCE(sat)		-0.1	-0.3	V	IC=-100mA IB=-10mA	2
Base to Emitter Saturation Voltage	VBE(sat)			-1.1	V	IC=-100mA IB=-10mA	2
Transition Frequency	fT	80			MHz	VCE=-10V IE=1.0mA	2
Collector Output Capacitance	Cob		4	7	pF	VCB=-10V IE=0 f=1.0MHz	2
Base Intrinsic Resistance	rbb'			30	Ω	VCB=-10V IE=1.0mA f=30MHz	2
Noise Figure	NF		1	10	dB	VCE=-6.0V IC=-0.1mA f=1KHz Rg=10KΩ	2
Collector to Base Voltage	VCBO			-50	V		2
Collector to Emitter Voltage	VCEO			-50	V		2
Emitter to Base Voltage	VEBO			-5	V		2
Collector Current - Continuous	IC			-150	mA		2
Base Current - Continuous	IB			-50	mA		2
Collector Power Dissipation	PC			625	mW		2
Junction Temperature	Tj			150	℃		2
Storage Temperature Range	Tstg	-55		150	℃		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
housing	PC		Base Current - Continuous IB -50 mA Collector Power Dissipation PC 625 mW	2

CAD (KiCad official)

Symbol: KTA1266
Footprint: Package_TO_SOT_THT:TO-92_Inline
3D model: TO-92 (KiCad packages3D, STEP)
3D model files: kta1266-etched.step / kta1266-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); kta1266.step / kta1266.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 562417e0198fbc40, retrieved 2026-10-17, tier: lcsc)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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