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

Name	Last commit message	Last updated
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tclt1003-etched.step	tclt1003: factory component page (tier=lcsc) · Ray	2d ago
tclt1003-hero.glb	tclt1003: hero GLB from the etched model (keeps the MPN mark) · Ray	2d ago
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TCLT1003

Vishay Intertech · Transistor, Photovoltaic Output Optoisolators · SOP-4-2.54mm

TCLT1003 from Vishay Intertech, in a SOP-4-2.54mm. 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	Infrared-emitting diode anode; the input is limited to a reverse voltage of 6 V and a forward current of 60 mA.
2	C	passive	Infrared-emitting diode cathode; the forward current is limited to 60 mA, with a forward surge current of 1.5 A for tp ≤ 10 µs.
3	Emitter	passive	Phototransistor emitter; the emitter-collector voltage is rated at 7 V.
4	Collector	passive	Phototransistor collector; the collector-emitter voltage is limited to 70 V and the collector current to 50 mA.

Key specifications

Parameter	Value
Manufacturer	Vishay Intertech
Package	SOP-4-2.54mm
Category	Optoisolators
Pins	4

Electrical characteristics

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

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Reverse voltage	VR			6	V		2
Forward current	IF			60	mA		2
Forward surge current	IFSM			1.5	A	tp ≤ 10 μs	2
Power dissipation (input)	Pdiss			100	mW		2
Junction temperature (input)	Tj			125	°C		2
Collector emitter voltage	VCEO			70	V		2
Emitter collector voltage	VECO			7	V		2
Collector current	IC			50	mA		2
Collector peak current	ICM			100	mA	tp/T = 0.5, tp ≤ 10 ms	2
Power dissipation (output)	Pdiss			150	mW		2
Junction temperature (output)	Tj			125	°C		2
Total power dissipation	Ptot			250	mW		2
Operating ambient temperature range	Tamb	-55		100	°C		2
Storage temperature range	Tstg	-55		125	°C		2
Soldering temperature	Tsld			260	°C		2
Collector emitter voltage	VCEO	70			V	IC = 1 mA	2
Emitter collector voltage	VECO	7			V	IE = 100 μA	2
Forward voltage	VF		1.25	1.6	V	IF = 50 mA	2
Collector emitter cut-off current	ICEO		10	100	nA	VCE = 20 V, IF = 0 A	2
Collector emitter saturation voltage	VCEsat			0.3	V	IF = 10 mA, IC = 1 mA	2
Current transfer ratio	CTR	100		200	%	VCE = 5 V, IF = 10 mA	3
Current transfer ratio	CTR	34	70		%	VCE = 5 V, IF = 1 mA	3

CAD (KiCad official)

Symbol: TCLT1003
Footprint: Package_SO:SOP-4_3.8x4.1mm_P2.54mm
3D model: SOP-4-2.54mm (KiCad packages3D, STEP)
3D model files: tclt1003-etched.step / tclt1003-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tclt1003.step / tclt1003.glb are the bare package body.

Provenance

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

Datasheet: Vishay Intertech datasheet (9 pp, sha256 cbe1039494f5ffbc, retrieved 2026-10-26, 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