component
FOD817B
Public Made by Adomby adom
onsemi Transistor, Photovoltaic Output Optoisolators, PDIP-4. 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
markdownFOD817B
onsemi · Transistor, Photovoltaic Output Optoisolators · PDIP-4
FOD817B from onsemi, in a PDIP-4. 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 | LED anode of the GaAs infrared emitting diode; the forward current is limited to 50 mA continuous (FOD817) and the emitter reverse voltage is 6 V. |
| 2 | Cathode | passive | LED cathode of the GaAs infrared emitting diode; the forward current is limited to 50 mA continuous (FOD817) and the reverse voltage rating is 6 V. |
| 3 | Emitter | passive | Phototransistor emitter; the emitter-collector breakdown rating is 6 V (VECO) and the device is specified for collector-emitter voltage up to 70 V. |
| 4 | Collector | passive | Phototransistor collector; VCEO is 70 V minimum and continuous collector current is 50 mA, with collector power dissipation of 150 mW. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | PDIP-4 |
| 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 |
|---|---|---|---|---|---|---|---|
| Continuous Forward Current | IF | 50 | mA | FOD817 column | 3 | ||
| Reverse Voltage | VR | 6 | V | 3 | |||
| Power Dissipation (emitter) | PD | 70 | mW | 3 | |||
| Derate Above 100°C (emitter) | 1.7 | mW/°C | Derate above 100°C | 3 | |||
| Collector-Emitter Voltage | VCEO | 70 | V | 3 | |||
| Emitter-Collector Voltage | VECO | 6 | V | 3 | |||
| Continuous Collector Current | IC | 50 | mA | 3 | |||
| Collector Power Dissipation | PC | 150 | mW | 3 | |||
| Derate Above 90°C (collector) | 2.9 | mW/°C | Derate above 90°C | 3 | |||
| Storage Temperature | TSTG | -55 | 150 | °C | 2 | ||
| Operating Temperature (FOD817) | TOPR | -55 | 110 | °C | FOD817 column | 2 | |
| Junction Temperature | TJ | -55 | 125 | °C | 2 | ||
| Lead Solder Temperature | TSOL | 260 | °C | for 10 s | 2 | ||
| Total Device Power Dissipation | PTOT | 200 | mW | 2 | |||
| Forward Voltage | VF | 1.2 | 1.4 | V | IF = 20 mA | 3 | |
| Reverse Current | IR | 10 | A | VR = 4.0 V | 3 | ||
| Terminal Capacitance | Ct | 30 | 250 | pF | V = 0, f = 1 kHz | 3 | |
| Collector Dark Current | ICEO | 100 | nA | VCE = 20 V, IF = 0 | 3 | ||
| Collector-Emitter Breakdown Voltage | BVCEO | 70 | V | IC = 0.1 mA, IF = 0 | 3 | ||
| Emitter-Collector Breakdown Voltage | BVECO | 6 | V | IE = 10 A, IF = 0 | 3 | ||
| Current Transfer Ratio (FOD817B) | CTR | 130 | 260 | % | IF = 5 mA, VCE = 5 V | 3 | |
| Collector-Emitter Saturation Voltage | VCE(SAT) | 0.1 | 0.2 | V | IF = 20 mA, IC = 1 mA | 3 | |
| Response Time (Rise) | tr | 4 | 18 | s | VCE = 2 V, IC = 2 mA, RL = 100 (Note 3) | 4 | |
| Response Time (Fall) | tf | 3 | 18 | s | VCE = 2 V, IC = 2 mA, RL = 100 (Note 3) | 4 | |
| Input-Output Isolation Voltage | VISO | 5000 | VACRMS | f = 60 Hz, t = 1 min, II-O ≤ 2 A | 4 | ||
| Isolation Capacitance | CISO | 0.6 | 1 | pf | VI-O = 0, f = 1 MHz | 4 | |
| Junction-to-Case Thermal Resistance | θJC | 210 | °C/W | 2 |
CAD (KiCad official)
- Symbol:
FOD817B - Footprint:
Package_DIP:DIP-4_W7.62mm - 3D model: PDIP-4 (KiCad packages3D, STEP)
- 3D model files:
fod817b-etched.step/fod817b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);fod817b.step/fod817b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (12 pp, sha256
85a5590e3d236403, retrieved 2026-10-16, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).