component
SFH618A-4
Public Made by Adomby adom
Vishay Intertech Optocouplers - Phototransistor Output, DIP-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
markdownSFH618A-4
Vishay Intertech · Optocouplers - Phototransistor Output · DIP-4
SFH618A-4 from Vishay Intertech, in a DIP-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 | A | passive | Anode of the GaAs infrared LED input, rated for a maximum forward current of 60 mA and reverse voltage of 6 V. |
| 2 | C | passive | Cathode of the GaAs infrared LED input, the return side of the emitter diode (max forward current 60 mA). |
| 3 | E | passive | Emitter of the silicon phototransistor output, with a maximum emitter-collector voltage of 7 V. |
| 4 | C | passive | Collector of the silicon phototransistor output, rated for VCEO of 55 V and a collector current of 50 mA (100 mA for tp ≤ 1 ms). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Vishay Intertech |
| Package | DIP-4 |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse voltage (input) | VR | 6 | V | Tamb = 25 °C | 2 | ||
| Input power dissipation | Pdiss | 70 | mW | Tamb = 25 °C | 2 | ||
| Forward current | IF | 60 | mA | Tamb = 25 °C | 2 | ||
| Collector emitter voltage | VCEO | 55 | V | Tamb = 25 °C | 2 | ||
| Emitter collector voltage | VECO | 7 | V | Tamb = 25 °C | 2 | ||
| Collector current | IC | 50 | mA | Tamb = 25 °C | 2 | ||
| Collector current (pulse) | IC | 100 | mA | tp ≤ 1 ms | 2 | ||
| Output power dissipation | Pdiss | 150 | mW | Tamb = 25 °C | 2 | ||
| Storage temperature range | Tstg | -55 | 150 | °C | 2 | ||
| Ambient temperature range | Tamb | -55 | 100 | °C | 2 | ||
| Junction temperature | Tj | 125 | °C | 2 | |||
| Soldering temperature | Tsld | 260 | °C | max. 10 s, dip soldering distance to seating plane ≥ 1.5 mm | 2 | ||
| Forward voltage | VF | 1.1 | 1.5 | V | IF = 5 mA | 3 | |
| Reverse current | IR | 0.01 | 10 | μA | VR = 6 V | 3 | |
| Collector emitter leakage current | ICEO | 10 | 200 | nA | VCE = 10 V | 3 | |
| Collector emitter saturation voltage | VCEsat | 0.25 | 0.4 | V | IC = 0.8 mA, IF = 1 mA | 3 | |
| Current transfer ratio | CTR | 160 | 320 | % | IF = 1 mA, VCE = 0.5 V | 3 | |
| Current transfer ratio | CTR | 80 | 200 | % | IF = 0.5 mA, VCE = 1.5 V | 3 | |
| Tested withstanding isolation voltage | VISO | 5300 | VRMS | According to UL1577, t = 1 s | 4 | ||
| Maximum rated withstanding isolation voltage | VISO | 4420 | VRMS | According to UL1577, t = 1 min | 4 | ||
| Input capacitance | CO | 25 | pF | VR = 0 V, f = 1 MHz | 3 | ||
| Collector emitter capacitance | CCE | 7 | pF | VCE = 5 V, f = 1 MHz | 3 | ||
| Coupling capacitance | CC | 0.25 | pF | 3 | |||
| Thermal resistance, input | Rthja | 1070 | K/W | 3 | |||
| Thermal resistance, output | Rthja | 500 | K/W | 3 | |||
| Turn on time | ton | 6 | μs | VCC = 5 V, IC = 2 mA, RL = 100 Ω | 3 | ||
| Rise time | tr | 3.5 | μs | VCC = 5 V, IC = 2 mA, RL = 100 Ω | 3 | ||
| Turn off time | toff | 5.5 | μs | VCC = 5 V, IC = 2 mA, RL = 100 Ω | 3 | ||
| Fall time | tf | 5 | μs | VCC = 5 V, IC = 2 mA, RL = 100 Ω | 3 |
CAD (KiCad official)
- Symbol:
SFH618A-4 - Footprint:
Package_DIP:DIP-4_W7.62mm - 3D model: DIP-4 (KiCad packages3D, STEP)
- 3D model files:
sfh618a-4-etched.step/sfh618a-4-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sfh618a-4.step/sfh618a-4.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Vishay Intertech datasheet (10 pp, sha256
41b157bf41f80f63, retrieved 2026-10-22, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).