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Contents

Pinout
Key specifications
Electrical characteristics
CAD (KiCad official)
Provenance

README

markdown

FODM1008

onsemi · Transistor, Photovoltaic Output Optoisolators · SOP-4-2.54mm

FODM1008 from onsemi, 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	ANODE	passive	Anode of the GaAs infrared LED input; the input is rated for 50 mA continuous forward current and 6 V reverse input voltage.
2	CATHODE	passive	Cathode of the GaAs infrared LED input, completing the LED input path to pin 1.
3	EMITTER	passive	Emitter of the phototransistor output; the detector is rated for 70 V collector-emitter voltage and 7 V emitter-collector voltage.
4	COLLECTOR	passive	Collector of the phototransistor output; the detector is rated for 50 mA continuous collector current and 70 V collector-emitter voltage.

Key specifications

Parameter	Value
Manufacturer	onsemi
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
Forward Voltage	VF		1.4	1.6	V	IF = 50 mA	3
Reverse Current	IR			10	µA	VR = 4 V	3
Breakdown Voltage Collector to Emitter	BVCEO	70			V	IC = 1 mA, IF = 0	3
Breakdown Voltage Emitter to Collector	BVECO	7			V	IE = 0.1 mA, IF = 0	3
Collector Dark Current	ICEO			100	nA	VCE = 70 V, IF = 0	3
DC Current Transfer Ratio (FODM1008)	CTR	130		260	%	IF = 5 mA, VCE = 5 V	3
Saturation Voltage	VCE(SAT)			0.3	V	IF = 10 mA, IC = 1 mA	3
Rise Time (Non-Saturated)	tr		5.7	18	µs	IC = 2 mA, VCE = 5 V, RL = 100	3
Fall Time (Non-Saturated)	tf		8.5	18	µs	IC = 2 mA, VCE = 5 V, RL = 100	3
Steady State Isolation Voltage	VISO	5000			VACRMS	TA = 25°C, R.H. < 50%, t = 1.0 min., II-O ≤ 20 µA	3
Storage Temperature	TSTG	-55		150	°C		2
Operating Temperature	TOPR	-40		110	°C		2
Junction Temperature	TJ	-40		125	°C		2
Continuous Forward Current	IF(avg)			50	mA		2
Continuous Forward Current (Pulse)	IF(pk)			1	A	1 s Pulse, 300 pps	2
Reverse Input Voltage	VR			6	V		2
LED Power Dissipation	PDLED			100	mW	TA = 25°C	2
Continuous Collector Current	IC			50	mA		2
Collector-Emitter Voltage	VCEO			70	V		2
Emitter-Collector Voltage	VECO			7	V		2
Detector Power Dissipation	PDC			150	mW	TA = 25°C	2

CAD (KiCad official)

Symbol: FODM1008
Footprint: Package_SO:SOP-4_3.8x4.1mm_P2.54mm
3D model: SOP-4-2.54mm (KiCad packages3D, STEP)
3D model files: fodm1008-etched.step / fodm1008-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); fodm1008.step / fodm1008.glb are the bare package body.

Provenance

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

Datasheet: onsemi datasheet (9 pp, sha256 506ed0313d254b4b, retrieved 2026-10-16, 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