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Name	Last commit message	Last updated
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viewers	ltv-3120: viewers · Ray	13d ago
ltv-3120-etched.glb	Publish 0.1.0 · Ray	13d ago
ltv-3120-etched.step	ltv-3120: factory component page (tier=lcsc) · Ray	13d ago
ltv-3120-hero.glb	ltv-3120: hero GLB from the etched model (keeps the MPN mark) · Ray	13d ago
ltv-3120-hero.overlay.json	Publish 0.1.0 · Ray	13d ago
ltv-3120.glb	Publish 0.1.0 · Ray	13d ago
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ltv-3120.kicad_sym	Publish 0.1.0 · Ray	13d ago
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ltv-3120.step	Publish 0.1.0 · Ray	13d ago
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LTV-3120

Lite On · Logic Output Optoisolators · DIP-8

LTV-3120 from Lite On, in a DIP-8. 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	NC	unconnected	No connection; the functional diagram marks this pin NC, and the datasheet gives no function for it.
2	Anode	passive	AlGaAs LED anode on the input side; average forward input current is limited to 20 mA and reverse input voltage to 5 V (absolute maximum ratings).
3	Cathode	passive	AlGaAs LED cathode on the input side; LED on-current is specified at 7 to 16 mA (recommended operating condition), with VF(OFF) at 0 to 0.8 V.
4	NC	unconnected	No connection; the functional diagram marks this pin NC, and the datasheet gives no function for it.
5	GND	power_in	Output-side ground (VEE reference); a 0.1 µF ceramic bypass capacitor must be connected between pin 5 and pin 8, placed within 1 cm of each pin.
6	Vo	output	Totem-pole gate drive output; rated for ±3.0 A peak output current and VO(PEAK) of 35 V maximum, with rail-to-rail output swing.
7	Vo	output	Second output pin, internally tied to pin 6; rated for ±3.0 A peak output current and VO(PEAK) of 35 V maximum.
8	Vcc	power_in	Positive output-stage supply; recommended operating range is 15 to 30 V, with total supply (VCC-VEE) absolute maximum of 35 V, and a 0.1 µF bypass capacitor to pin 5 is required.

Key specifications

Parameter	Value
Manufacturer	Lite On
Package	DIP-8
Category	Optoisolators
Pins	8

Electrical characteristics

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

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Input Forward Voltage	VF	1.2	1.37	1.8	V	IF = 10mA	7
Input Reverse Voltage	BVR	5			V	IR = 10μA	7
Input Threshold Current (Low to High)	IFLH		1.8	5	mA	VCC = 30 V, VO > 5V	7
Input Threshold Voltage (High to Low)	VFHL	0.8			V	VCC = 30 V, VO < 5V	7
High Level Supply Current	ICCH		1.7	3	mA	IF = 10 mA, VCC = 30V, VO = Open	7
Low Level Supply Current	ICCL		2	3	mA	IF = 0 mA, VCC = 30V, VO = Open	7
High level output current (VO = VCC, 1.5 V)	IOH			-1	A	VO = (VCC, 1.5 V)	7
High level output current (VO = VCC, 4 V)	IOH			-3	A	VO = (VCC, 4 V)	7
Low level output current (VO = VEE + 1.5 V)	IOL	1			A	VO = (VEE + 1.5 V)	7
Low level output current (VO = VEE + 4 V)	IOL	3			A	VO = (VEE + 4 V)	7
UVLO Threshold (rising)	VUVLO+	11	12.7	13.5	V	VO > 5V, IF = 10 mA	7
UVLO Threshold (falling)	VUVLO-	9.5	11.2	12	V	VO < 5V, IF = 10 mA	7
Propagation Delay Time to High Output Level	tPLH	50		500	ns	Rg = 10Ω, Cg = 25nF, f = 10 kHz, Duty Cycle = 50%; IF = 7 to 16 mA, VCC = 10 to 30V; VEE = ground	8
Propagation Delay Time to Low Output Level	tPHL	50		500	ns	Rg = 10Ω, Cg = 25nF, f = 10 kHz, Duty Cycle = 50%; IF = 7 to 16 mA, VCC = 10 to 30V; VEE = ground	8
Pulse Width Distortion	PWD			100	ns		8
Propagation delay difference between any two parts or channels	PDD	-100		100	ns		8
Common mode transient immunity at high level output	/CMH/	35	50		kV/μs	TA = 25°C, IF = 10 to 16 mA, VCM = 1500 V, VCC = 30 V	8
Common mode transient immunity at low level output	/CML/	35	50		kV/μs	TA = 25°C, VF = 0 V, VCM = 1500 V, VCC = 30 V	8
Withstand Insulation Test Voltage	VISO	5000			V	RH ≤ 40%-60%, t = 1min, TA = 25 oC	9
Storage Temperature	Tstg	-55		125	oC		6
Operating Temperature	Topr	-40		110	oC		6
Output IC Junction Temperature	TJ			125	oC		6
Total Output Supply Voltage (VCC, VEE)	VCC-VEE	0		35	V		6
Average Forward Input Current	IF			20	mA		6
Reverse Input Voltage	VR			5	V		6
Peak Transient Input Current	IF(TRAN)			1	A	Note 1: Pulse width (PW) ≤ 1 μs, 300 pps	6
High Peak Output Current	IOH(PEAK)			3	A	Note 2: Exponential waveform. Pulse width ≤ 0.3 μs, f ≤ 15 kHz	6
Low Peak Output Current	IOL(PEAK)			3	A	Note 2: Exponential waveform. Pulse width ≤ 0.3 μs, f ≤ 15 kHz	6
Input Current (Rise/Fall Time)	tr(IN)/tf(IN)			500	ns	Note 3: Rise and fall times of input on-current should be less than 500 ns	6
Output Voltage	VO(PEAK)			35	V		6
Power Dissipation	PI			45	mW		6
Output Power Dissipation	PO			700	mW		6
Total Power Dissipation	PT			745	mW		6
Lead Solder Temperature (10s)	Tsol			260	oC	10 s	6
Operating Temperature	TA	-40		110	oC		6
Supply Voltage	VCC	15		30	V		6
Input Current (ON)	IFL(ON)	7		16	mA		6
Input Voltage (OFF)	VF(OFF)	0		0.8	V		6

CAD (KiCad official)

Symbol: LTV-3120
Footprint: Package_DIP:DIP-8_W7.62mm
3D model: DIP-8 (KiCad packages3D, STEP)
3D model files: ltv-3120-etched.step / ltv-3120-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ltv-3120.step / ltv-3120.glb are the bare package body.

Provenance

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

Datasheet: Lite On datasheet (16 pp, sha256 b4e08be05aa4f278, retrieved 2026-10-15, 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