# LTV-M501-3

**Lite On** · Logic Output Optoisolators · SOP-5-175mil

LTV-M501-3 from Lite On, in a SOP-5-175mil. 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 AlGaAs input LED; absolute maximum average forward input current is 20 mA (peak 40 mA at 50% duty, 1 ms pulse) and reverse input voltage is 5 V. |
| 3 | Cathode | passive | Cathode of the AlGaAs input LED; input power dissipation is limited to 36 mW absolute maximum. |
| 4 | GND | power_in | Ground reference for the detector; a 0.1 µF bypass capacitor must be connected between pin 4 and pin 6. |
| 5 | Vo | output | Open-collector logic output (LED on gives L, LED off gives H); output collector voltage is limited to -0.5 V to 20 V, output collector current to 8 mA DC (16 mA peak). |
| 6 | Vcc | power_in | Positive supply; absolute maximum -0.5 V to 30 V, recommended operating range 2.7 V to 24 V, with a 0.1 µF bypass capacitor to pin 4. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Lite On |
| Package | SOP-5-175mil |
| 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 |
|---|---|---|---|---|---|---|---|
| Storage Temperature | TST | -55 |  | 125 | °C |  | 4 |
| Operating Temperature | TA | -40 |  | 100 | °C |  | 4 |
| Supply Voltage | VCC | -0.5 |  | 30 | V |  | 4 |
| Output Collector Voltage | VO | -0.5 |  | 20 | V |  | 4 |
| Reverse Input Voltage | VR |  |  | 5 | V |  | 4 |
| Average Forward Input Current | IF |  |  | 20 | mA |  | 4 |
| Peak Input Current | IF |  |  | 40 | mA | 50% duty cycle, 1 ms pulse width | 4 |
| Peak Transient Input Current | IF |  |  | 1 | A | 1 µs pulse width, 300 pps | 4 |
| Input Power Dissipation | PI |  |  | 36 | mW |  | 4 |
| Output Collector Current | IO |  |  | 8 | mA |  | 4 |
| Peak Output Current | IO |  |  | 16 | mA |  | 4 |
| Output Collector Power Dissipation | PO |  |  | 100 | mW |  | 4 |
| Isolation Voltage | VISO |  |  | 3750 | VRMS |  | 4 |
| Lead Solder Temperature |  |  |  | 260 | °C | for 10 seconds | 4 |
| Input Forward Voltage | VF | 1.2 | 1.4 | 1.8 | V | IF = 3mA, TA = 25 °C | 5 |
| Input Reverse Voltage | BVR | 5 |  |  | V | IR = 10µA | 5 |
| Current transfer ratio | CTR | 90 | 125 | 200 | % | IF = 3mA; VCC = 3.3V or 5V; TA = 25 °C; VO = 0.4V | 5 |
| Current transfer ratio | CTR | 53 |  |  | % | IF = 3mA; VCC = 3.3V or 5V; TA = 25 °C; VO = 0.5V | 5 |
| Logic low output voltage | VOL |  | 0.25 | 0.4 | V | IF = 3mA; VCC = 3.3V or 5V; Io = 3.0mA; TA = 25 °C | 5 |
| Logic low output voltage | VOL |  | 0.25 | 0.5 | V | IF = 3mA; VCC = 3.3V or 5V; Io = 1.6mA; TA = 25 °C | 5 |
| Logic high output current | IOH |  |  | 0.5 | µA | IF = 0mA, VO = VCC = 5.5V, TA = 25 °C | 5 |
| Logic high output current | IOH |  |  | 1 | µA | IF = 0mA, VO = 20V, VCC = 30V, TA = 25 °C | 5 |
| Logic high output current | IOH |  |  | 80 | µA | VO = 20V, VCC = 30V | 5 |
| Logic low supply current | ICCL |  | 60 | 100 | µA | IF = 3mA, Vo = open (VCC = 30V) | 5 |
| Propagation delay time to low output level | tPHL |  | 0.3 | 1 | µs | f = 10kHz, Duty cycle = 50%, IF = 3mA, VCC = 3.3V, RL=1.8KΩ, CL = 15pF, VTHHL = 1.5V | 6 |
| Propagation delay time to high output level | tPLH |  | 0.4 | 1.4 | µs | f = 10kHz, Duty cycle = 50%, IF = 3mA, VCC = 3.3V, RL=1.8KΩ, CL = 15pF, VTHLH = 2V | 6 |
| Propagation delay time to high output level | tPLH |  | 0.4 | 1 | µs | f = 10kHz, Duty cycle = 50%, IF = 3mA, VCC = 5.0V, RL=2.9KΩ, CL = 15pF, VTHLH = 2V | 6 |
| Logic High Common Mode Transient Immunity | /CMH/ | 15 |  |  | kV/µs | IF = 0mA, VCM = 1000Vp-p; VCC = 3.3V or 5V, TA=25 oC, RL=1.8KΩ or 2.9KΩ | 6 |
| Logic Low Common Mode Transient Immunity | /CML/ | 15 |  |  | kV/µs | IF = 3mA; VCM = 1000Vp-p; VCC = 3.3V or 5V, TA = 25 oC, RL=1.8KΩ or 2.9KΩ | 6 |
| Input-Output Insulation Leakage Current | II-O |  |  | 1 | µA | 45% RH, t = 5s, VI-O = 3kV DC, TA =25°C | 7 |
| Withstand Insulation Test Voltage | VISO | 3750 |  |  | VRMS | RH ≤ 50%, t = 1min, TA = 25°C | 7 |
| Supply voltage (recommended) | VCC | 2.7 |  | 24 | V | Footnote to electrical table: IF = 3mA, unless otherwise specified | 5 |
| Operating temperature (recommended) | TA | -40 |  | 105 | °C | Footnote to electrical table: over recommended temperature | 5 |

## CAD (KiCad official)

- Symbol: `LTV-M501-3`
- Footprint: `Package_SO:SOIC-5-6_4.4x3.6mm_P1.27mm`
- 3D model: SOP-5-175mil (KiCad packages3D, STEP)
- 3D model files: `ltv-m501-3-etched.step` / `ltv-m501-3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ltv-m501-3.step` / `ltv-m501-3.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Lite On datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590223112584261632) (13 pp, sha256 `03d35189631e8885`, 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](docs/ltv-m501-3-datasheet.pdf)