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SFH618A-3

Public Made by Adom

by adom

Vishay Intertech Transistor, Photovoltaic Output Optoisolators, DIP-4. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SFH618A-3

Vishay Intertech · Transistor, Photovoltaic Output Optoisolators · DIP-4

SFH618A-3 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; forward current IF max 60 mA, reverse voltage VR max 6 V.
2 C passive Cathode of the GaAs infrared LED input; typical forward voltage 1.1 V (max 1.5 V) at IF = 5 mA.
3 E passive Emitter of the silicon phototransistor output; emitter-collector voltage VECO max 7 V.
4 C passive Collector of the silicon phototransistor output; VCEO max 55 V and collector current IC max 50 mA.

Key specifications

Parameter Value
Manufacturer Vishay Intertech
Package DIP-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
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 = 0.5 mA, IF = 1 mA 3
Current transfer ratio CTR 100 200 % IF = 1 mA, VCE = 0.5 V 3
Current transfer ratio CTR 50 120 % IF = 0.5 mA, VCE = 1.5 V 3
Reverse voltage 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 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
Input capacitance CO 25 pF VR = 0 V, f = 1 MHz 3
Thermal resistance, input Rthja 1070 K/W 3
Collector emitter capacitance CCE 7 pF VCE = 5 V, f = 1 MHz 3
Thermal resistance, output Rthja 500 K/W 3
Coupling capacitance CC 0.25 pF 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-3
  • Footprint: Package_DIP:DIP-4_W7.62mm
  • 3D model: DIP-4 (KiCad packages3D, STEP)
  • 3D model files: sfh618a-3-etched.step / sfh618a-3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sfh618a-3.step / sfh618a-3.glb are the bare package body.

Provenance

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

  • Datasheet: Vishay Intertech datasheet (10 pp, sha256 68f908167d3e4aa3, retrieved 2026-10-27, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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