component
FODM352
Public Made by Adomby adom
onsemi Optocouplers - Phototransistor Output, SOP-4-2.54mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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FODM352
onsemi · Optocouplers - Phototransistor Output · SOP-4-2.54mm
FODM352 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; continuous forward current is limited to 50 mA and VF is 1.2 V typ to 1.4 V max at IF = 10 mA. |
| 2 | CATHODE | passive | Cathode of the GaAs infrared LED input; reverse input voltage is limited to 6 V. |
| 3 | EMITTER | passive | Emitter of the photodarlington output transistor; emitter-collector voltage is limited to 0.1 V. |
| 4 | COLLECTOR | passive | Collector of the photodarlington output transistor; collector-emitter voltage is rated 300 V and continuous collector current 150 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOP-4-2.54mm |
| Category | Optocoupler/LED/Digital Tube/Photoelectric Device |
| 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 | 1.2 | 1.4 | V | IF = 10 mA | 4 | |
| Reverse Current | IR | 10 | µA | VR = 4 V | 4 | ||
| Terminal Capacitance | CT | 30 | 250 | pF | V = 0 V, f = 1 kHz | 4 | |
| Collector-Emitter Breakdown Voltage | BVCEO | 300 | V | IC = 0.1 mA, IF = 0 mA | 4 | ||
| Emitter-Collector Breakdown Voltage | BVECO | 0.1 | µA | IE = 10 A, IF = 0 mA | 4 | ||
| Collector Dark Current | ICEO | 200 | nA | VCE = 200 V, IF = 0 mA | 4 | ||
| Collector Current | IC | 10 | mA | IF = 1 mA, VCE = 2 V | 4 | ||
| Current Transfer Ratio | CTR | 1000 | 5000 | % | IF = 1 mA, VCE = 2 V | 4 | |
| Collector-Emitter Saturation Voltage | VCE(SAT) | 1.2 | V | IF = 20 mA, IC = 100 mA | 4 | ||
| Output Rise Time (10%-90%) | tR | 20 | 100 | µs | IF = 20 mA, VCC = 2 V, RL = 100 | 4 | |
| Output Fall Time (90%-10%) | tF | 100 | 300 | µs | IF = 20 mA, VCC = 2 V, RL = 100 | 4 | |
| Input-Output Isolation Voltage | VISO | 3750 | VACRMS | Freq = 60 Hz, t = 1.0 min (Notes 4, 5) | 4 | ||
| Isolation Capacitance | CISO | 0.6 | 1 | pF | Frequency = 1 MHz | 4 | |
| Storage Temperature | TSTG | -55 | 150 | °C | 3 | ||
| Operating Temperature | TOPR | -55 | 110 | °C | 3 | ||
| Junction Temperature | TJ | -55 | 125 | °C | 3 | ||
| Lead Solder Temperature (Refer to Reflow Temperature Profile) | TSOL | 260 | °C | for 10 sec | 3 | ||
| Continuous Forward Current | IF(average) | 50 | mA | 3 | |||
| Reverse Input Voltage | VR | 6 | V | 3 | |||
| LED Power Dissipation | PDLED | 70 | mW | Note 3 | 3 | ||
| Continuous Collector Current | IC(average) | 150 | mA | 3 | |||
| Collector-Emitter Voltage | VCEO | 300 | V | 3 | |||
| Emitter-Collector Voltage | VECO | 0.1 | V | 3 | |||
| Collector Power Dissipation | PDC | 150 | mW | Note 3 | 3 |
CAD (KiCad official)
- Symbol:
FODM352 - Footprint:
Package_SO:SOP-4_3.8x4.1mm_P2.54mm - 3D model: SOP-4-2.54mm (KiCad packages3D, STEP)
- 3D model files:
fodm352-etched.step/fodm352-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);fodm352.step/fodm352.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (9 pp, sha256
9c18be7ee07689f0, retrieved 2026-10-16, 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).
# FODM352
**onsemi** · Optocouplers - Phototransistor Output · SOP-4-2.54mm
FODM352 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; continuous forward current is limited to 50 mA and VF is 1.2 V typ to 1.4 V max at IF = 10 mA. |
| 2 | CATHODE | passive | Cathode of the GaAs infrared LED input; reverse input voltage is limited to 6 V. |
| 3 | EMITTER | passive | Emitter of the photodarlington output transistor; emitter-collector voltage is limited to 0.1 V. |
| 4 | COLLECTOR | passive | Collector of the photodarlington output transistor; collector-emitter voltage is rated 300 V and continuous collector current 150 mA. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOP-4-2.54mm |
| Category | Optocoupler/LED/Digital Tube/Photoelectric Device |
| 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 | | 1.2 | 1.4 | V | IF = 10 mA | 4 |
| Reverse Current | IR | | | 10 | µA | VR = 4 V | 4 |
| Terminal Capacitance | CT | | 30 | 250 | pF | V = 0 V, f = 1 kHz | 4 |
| Collector-Emitter Breakdown Voltage | BVCEO | 300 | | | V | IC = 0.1 mA, IF = 0 mA | 4 |
| Emitter-Collector Breakdown Voltage | BVECO | 0.1 | | | µA | IE = 10 A, IF = 0 mA | 4 |
| Collector Dark Current | ICEO | | | 200 | nA | VCE = 200 V, IF = 0 mA | 4 |
| Collector Current | IC | 10 | | | mA | IF = 1 mA, VCE = 2 V | 4 |
| Current Transfer Ratio | CTR | 1000 | 5000 | | % | IF = 1 mA, VCE = 2 V | 4 |
| Collector-Emitter Saturation Voltage | VCE(SAT) | | | 1.2 | V | IF = 20 mA, IC = 100 mA | 4 |
| Output Rise Time (10%-90%) | tR | | 20 | 100 | µs | IF = 20 mA, VCC = 2 V, RL = 100 | 4 |
| Output Fall Time (90%-10%) | tF | | 100 | 300 | µs | IF = 20 mA, VCC = 2 V, RL = 100 | 4 |
| Input-Output Isolation Voltage | VISO | 3750 | | | VACRMS | Freq = 60 Hz, t = 1.0 min (Notes 4, 5) | 4 |
| Isolation Capacitance | CISO | | 0.6 | 1 | pF | Frequency = 1 MHz | 4 |
| Storage Temperature | TSTG | -55 | | 150 | °C | | 3 |
| Operating Temperature | TOPR | -55 | | 110 | °C | | 3 |
| Junction Temperature | TJ | -55 | | 125 | °C | | 3 |
| Lead Solder Temperature (Refer to Reflow Temperature Profile) | TSOL | | | 260 | °C | for 10 sec | 3 |
| Continuous Forward Current | IF(average) | | | 50 | mA | | 3 |
| Reverse Input Voltage | VR | | | 6 | V | | 3 |
| LED Power Dissipation | PDLED | | | 70 | mW | Note 3 | 3 |
| Continuous Collector Current | IC(average) | | | 150 | mA | | 3 |
| Collector-Emitter Voltage | VCEO | | | 300 | V | | 3 |
| Emitter-Collector Voltage | VECO | | | 0.1 | V | | 3 |
| Collector Power Dissipation | PDC | | | 150 | mW | Note 3 | 3 |
## CAD (KiCad official)
- Symbol: `FODM352`
- Footprint: `Package_SO:SOP-4_3.8x4.1mm_P2.54mm`
- 3D model: SOP-4-2.54mm (KiCad packages3D, STEP)
- 3D model files: `fodm352-etched.step` / `fodm352-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `fodm352.step` / `fodm352.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [onsemi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588928736355340288) (9 pp, sha256 `9c18be7ee07689f0`, retrieved 2026-10-16, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-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).
[Datasheet PDF](docs/fodm352-datasheet.pdf)