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Contents

README

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PS2561D-1Y-A

RENESAS · Transistor, Photovoltaic Output Optoisolators · DIP-4

PS2561D-1Y-A from RENESAS, 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 Anode passive Anode of the GaAs input LED; forward current IF max 40 mA DC (1 A peak, PW=100 µs, duty 1%) and reverse voltage VR max 6 V.
2 Cathode passive Cathode of the GaAs input LED; shorted with pin 1 for the 5 000 Vr.m.s. isolation test between input and output.
3 Emitter passive Emitter of the NPN silicon phototransistor; emitter to collector voltage VECO max 7 V.
4 Collector passive Collector of the NPN silicon phototransistor; VCEO max 80 V and collector current IC max 50 mA.

Key specifications

Parameter Value
Manufacturer RENESAS
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
Diode Forward Voltage VF 1.2 1.4 V IF = 10 mA 5
Reverse Current IR 5 µA VR = 5 V 5
Terminal Capacitance Ct 10 pF V = 0 V, f = 1.0 MHz 5
Collector to Emitter Dark Current ICEO 100 nA VCE = 48 V, IF = 0 mA 5
Coupled Current Transfer Ratio (IC/IF) CTR 50 160 400 % IF = 5 mA, VCE = 5 V 5
Coupled Current Transfer Ratio (IC/IF) CTR 10 80 % IF = 1 mA, VCE = 5 V 5
Collector Saturation Voltage VCE(sat) 0.3 V IF = 10 mA, IC = 2 mA 5
Isolation Capacitance CI-O 0.5 pF V = 0 V, f = 1.0 MHz 5
Rise Time tr 3 µs VCC = 10 V, IC = 2 mA, RL = 100 Ω 5
Fall Time tf 5 µs VCC = 10 V, IC = 2 mA, RL = 100 Ω 5
Diode Reverse Voltage VR 6 V TA = 25°C 4
Forward Current (DC) IF 40 mA TA = 25°C 4
Power Dissipation Derating (diode) PD/°C 1.5 mW/°C TA = 25°C 4
Diode Power Dissipation PD 150 mW TA = 25°C 4
Peak Forward Current IFP 1 A PW = 100 µs, Duty Cycle = 1% 4
Collector to Emitter Voltage VCEO 80 V TA = 25°C 4
Emitter to Collector Voltage VECO 7 V TA = 25°C 4
Collector Current IC 50 mA TA = 25°C 4
Power Dissipation Derating (transistor) PC/°C 1.5 mW/°C TA = 25°C 4
Transistor Power Dissipation PC 150 mW TA = 25°C 4
Isolation Voltage BV 5000 Vr.m.s. AC 1 minute, TA = 25°C, RH = 60%, input-output, pins 1-2 shorted, 3-4 shorted 4
Operating Ambient Temperature TA -55 110 °C 4
Storage Temperature Tstg -55 150 °C 4

CAD (KiCad official)

  • Symbol: PS2561D-1Y-A
  • Footprint: Package_DIP:DIP-4_W7.62mm
  • 3D model: DIP-4 (KiCad packages3D, STEP)
  • 3D model files: ps2561d-1y-a-etched.step / ps2561d-1y-a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ps2561d-1y-a.step / ps2561d-1y-a.glb are the bare package body.

Provenance

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

  • Datasheet: RENESAS datasheet (18 pp, sha256 04ff39dc9544e695, retrieved 2026-10-24, tier: lcsc)
  • 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