component
CYTLP109
Public Made by Adomby adom
OCIC Transistor, Photovoltaic Output Optoisolators, SOP-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownCYTLP109
OCIC · Transistor, Photovoltaic Output Optoisolators · SOP-5
CYTLP109 from OCIC, in a SOP-5. 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 input infrared LED, with forward current IF rated 20 mA max and reverse voltage 5 V max. |
| 3 | CATHODE | passive | Cathode of the input infrared LED. |
| 4 | EMITTER (GND) | power_in | Emitter of the output phototransistor, used as the output-side ground. |
| 5 | COLLECTOR (OUTPUT) | output | Open-collector output of the phototransistor (VO), rated -0.5 to 20 V with output current IO of 8 mA max. |
| 6 | VCC | power_in | Output-side supply voltage pin, rated -0.5 to 30 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | OCIC |
| Package | SOP-5 |
| Category | Optoisolators |
| Pins | 5 |
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 Current | IF | 20 | mA | 1 | |||
| Pulse forward current | IFP | 40 | mA | Note 1: 50 % duty cycle, 1 ms pulse width | 1 | ||
| Peak transient forward current | IFPT | 1 | A | Note 2: Pulse width ≤ 1 μs, 300 pps | 1 | ||
| Reverse Voltage | VR | 5 | V | 1 | |||
| Power dissipation | PD | 40 | mW | Note 3: derate 0.72 mW/°C above 95 °C | 1 | ||
| Output Current | IO | 8 | mA | 1 | |||
| Peak Output Current | IOP | 16 | mA | 1 | |||
| Supply Voltage | VCC | -0.5 | 30 | V | 1 | ||
| Output Voltage | VO | -0.5 | 20 | V | 1 | ||
| Output power dissipation | PO | 100 | mW | Note 4: derate 1.8 mW/°C above 95 °C | 1 | ||
| Isolation Voltage | Viso | 3750 | Vrms | AC, 1min., R.H.≤ 60% | 1 | ||
| Operating Temperature | Topr | -55 | 110 | °C | 1 | ||
| Storage Temperature | Tstg | -55 | 125 | °C | 1 | ||
| Soldering Temperature | Tsol | 260 | °C | 10 s | 1 | ||
| Forward Voltage | VF | 1.2 | 1.4 | 1.6 | V | IF=16mA | 2 |
| Reverse Current | IR | 10 | µA | VR=3V | 2 | ||
| Capacitance between terminals | CT | 60 | pF | V=0, f=1MHz | 2 | ||
| High level output current IOH(1) | IOH(1) | 3 | 500 | nA | IF=0mA, VCC=VO= 5.5V | 2 | |
| High level output current IOH(2) | IOH(2) | 5 | µA | IF=0mA, VCC=30V, VO=20V | 2 | ||
| High level output current IOH at Ta=100 °C | IOH | 50 | µA | IF=0mA, VCC=30 V, VO=20V, Ta=100 °C | 2 | ||
| Low level supply current ICCL | ICCL | 200 | µA | IF=16mA, VO=Open, VCC=15V | 2 | ||
| Current transfer ratio | CTR | 20 | % | IF=16mA, VCC=4.5V, VO=0.4V | 2 | ||
| Low level output voltage | VOL | 0.4 | V | IF=16mA, VCC=4.5V, IO=24mA | 2 | ||
| Capacitance (input to output) | CS | 0.8 | pF | VS = 0, f = 1 MHz | 2 | ||
| Isolation voltage | BVS | 3750 | Vrms | AC, 1 minute | 2 | ||
| Propagation delay time (H→L) | tpHL | 0.8 | μs | IF=0→16mA, RL=1.9kΩ | 2 | ||
| Propagation delay time (L→H) | tpLH | 0.5 | μs | IF=16→0mA, RL=1.9kΩ | 2 | ||
| Common mode transient immunity at high output level | CMH | 5000 | V/μs | IF=0mA, VCM=400Vp−p, RL=4.1kΩ | 2 | ||
| Common mode transient immunity at low output level | CML | 5000 | V/μs | IF=16mA, VCM=400Vp−p, RL=4.1kΩ | 2 | ||
| Forward voltage temperature coefficient | ΔVF/°C | -1.6 | mV/°C | IF=16mA | 2 | ||
| Output Current Derating (Ta ≥ 95 °C) | ΔIo/°C | -0.3 | mA/°C | Ta ≥ 95 °C | 1 | ||
| Forward current derating | ΔIF/°C | -0.36 | mA/°C | 1 |
CAD (KiCad official)
- Symbol:
CYTLP109 - Footprint:
Package_SO:SOIC-5-6_4.4x3.6mm_P1.27mm - 3D model: SOP-5 (KiCad packages3D, STEP)
- 3D model files:
cytlp109-etched.step/cytlp109-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cytlp109.step/cytlp109.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: OCIC datasheet (7 pp, sha256
a20aa71fbed8f81d, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).