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Contents

README

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HCPL-2531-000E

Broadcom AVAGO · Logic Output Optoisolators · DIP-8

HCPL-2531-000E from Broadcom AVAGO, in a DIP-8. 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 1 passive LED 1 anode input; the absolute maximum average forward input current per channel is 25 mA and reverse LED input voltage is 5 V.
2 CATHODE 1 passive LED 1 cathode; the absolute maximum reverse LED input voltage per channel is 5 V and the average forward input current is 25 mA per channel.
3 CATHODE 2 passive LED 2 cathode; the absolute maximum reverse LED input voltage per channel is 5 V and the average forward input current is 25 mA per channel.
4 ANODE 2 passive LED 2 anode input; the absolute maximum average forward input current per channel is 25 mA and reverse LED input voltage is 5 V.
5 GND power_in Ground reference for the output transistors and supply; a 0.1 µF bypass capacitor between pins 5 and 8 is recommended.
6 VO2 output Channel 2 open-collector output; output voltage (pins 6-5) is limited to -0.5 V to 20 V, average output current 8 mA and peak output current 16 mA per channel.
7 VO1 output Channel 1 open-collector output; output voltage (pins 7-5) is limited to -0.5 V to 20 V, average output current 8 mA and peak output current 16 mA per channel.
8 VCC power_in Supply voltage for the photodetectors and output stages, limited to -0.5 V to 30 V (pins 8-5) per the absolute maximum ratings; a 0.1 µF bypass capacitor to pin 5 is recommended.

Key specifications

Parameter Value
Manufacturer Broadcom AVAGO
Package DIP-8
Category Optoisolators
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Current Transfer Ratio CTR 19 24 50 % TA = 25°C; IF = 16 mA, VCC = 4.5 V, VO = 0.5 V (shared line of CTR block) 9
Logic Low Output Voltage VOL 0.1 0.5 V TA = 25°C, IO = 3.0 mA, IF = 16 mA, VCC = 4.5 V 9
Logic High Output Current IOH 0.003 0.5 µA TA = 25°C, VCC = VO = 5.5 V, IF = 0 mA 9
Logic High Output Current IOH 50 µA TA = 25°C, VCC = VO = 15 V, IF = 0 mA 9
Logic Low Supply Current ICCL 100 400 µA IF = 16 mA, VO = Open, VCC = 15 V 9
Logic High Supply Current ICCH 0.05 4 µA IF = 0 mA, VO = Open, VCC = 15 V 9
Input Forward Voltage VF 1.5 1.7 V TA = 25°C 9
Input Forward Voltage VF 1.8 V IF = 16 mA 9
Input Reverse Breakdown Voltage BVR 5 V IR = 10 µA 9
Input-Output Momentary Withstand Voltage VISO 3750 V rms RH < 50%, t = 1 min 10
Propagation Delay Time to Logic Low at Output tPHL 0.2 0.8 1 µs TA = 25°C, RL = 1.9 kΩ, VCC = 5 V, IF = 16 mA 10
Propagation Delay Time to Logic High at Output tPLH 0.6 0.8 1 µs TA = 25°C, RL = 1.9 kΩ, VCC = 5 V, IF = 16 mA 10
Common Mode Transient Immunity at Logic High Level Output /CMH/ 1 10 kV/µs RL = 1.9 kΩ, IF = 0 mA, TA = 25°C, VCM = 10 Vp-p 10
Common Mode Transient Immunity at Logic Low Level Output /CML/ 1 10 kV/µs RL = 1.9 kΩ, IF = 0 mA, TA = 25°C, VCM = 10 Vp-p 10
Storage Temperature TS -55 125 °C 8
Operating Temperature TA -55 100 °C 8
Average Forward Input Current (each channel) IF(AVG) 25 mA each channel 8
Peak Forward Input Current (each channel) IF(PEAK) 50 mA 50% duty cycle, 1 ms pulse width 8
Peak Transient Input Current (each channel) IF(TRANS) 1 A ≤ 1 µs pulse width, 300 pps 8
Reverse LED Input Voltage (each channel) VR 5 V each channel 8
Input Power Dissipation (each channel) PIN 45 mW each channel 8
Average Output Current (each channel) IO(AVG) 8 mA each channel 8
Peak Output Current IO(PEAK) 16 mA 8
Supply Voltage VCC -0.5 30 V Pin 8-5 8
Output Voltage VO -0.5 20 V Pins 7-5, 6-5 8
Output Power Dissipation (each channel) PO 35 mW each channel; note 13 8
Lead Solder Temperature (Through-Hole Parts Only) TLS 260 °C 1.6 mm below seating plane, 10 seconds, 8 Pin DIP 8

CAD (KiCad official)

  • Symbol: HCPL-2531-000E
  • Footprint: Package_DIP:DIP-8_W7.62mm
  • 3D model: DIP-8 (KiCad packages3D, STEP)
  • 3D model files: hcpl-2531-000e-etched.step / hcpl-2531-000e-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hcpl-2531-000e.step / hcpl-2531-000e.glb are the bare package body.

Provenance

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

  • Datasheet: Broadcom AVAGO datasheet (13 pp, sha256 a9224f16bbf81636, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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