Loads when you scroll to it. Unloads after 5 minutes in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

PCB Footprint

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Loads when you scroll to it. Unloads after 5 minutes in the background.
Download PDF
Contents

README

markdown

QCPL-074H-500E

Broadcom AVAGO · Transistor, Photovoltaic Output Optoisolators · SOP-8

QCPL-074H-500E from Broadcom AVAGO, in a SOP-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 ANODE1 input LED anode for channel 1; a series limiting resistor of 80 ohm at 3.3 V or 210 ohm at 5 V is recommended, with input ON current 9 to 18 mA.
2 CATHODE1 passive LED cathode for channel 1 of the dual-channel optocoupler.
3 CATHODE2 passive LED cathode for channel 2 of the dual-channel optocoupler.
4 ANODE2 input LED anode for channel 2; a series limiting resistor of 80 ohm at 3.3 V or 210 ohm at 5 V is recommended, with input ON current 9 to 18 mA.
5 GND power_in Ground reference for the output stages and the detector ICs; a 0.1 uF bypass capacitor must be connected between pins 5 and 8.
6 VO2 output CMOS logic output of channel 2 (logic high when the LED is off, logic low when on), with 0.01 uF to 0.1 uF bypass recommended across VDD and GND.
7 VO1 output CMOS logic output of channel 1 (logic high when the LED is off, logic low when on).
8 VDD power_in Supply voltage: 4.5 V to 5.5 V or 3.0 V to 3.6 V, with a minimum of 3.0 V required before powering up the output-connected component.

Key specifications

Parameter Value
Manufacturer Broadcom AVAGO
Package SOP-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
Input Forward Voltage VF 1.3 1.5 1.8 V IF = 14mA 5
Input Reverse Breakdown Voltage BVR 5 V IR = 10 µA 5
Logic Low Output Voltage (3.3V) VOL 0.35 0.8 V IF = 14mA, IO = 4mA, VDD=3.3V 5
Logic Low Output Voltage (5V) VOL 0.2 0.8 V IF = 14mA, IO = 4mA, VDD=5V 5
Input Threshold Current ITH 4.5 8.8 mA IOL = 20 µA 5
Logic Low Output Supply Current (QCPL-074H) IDDL 8.3 12 mA IF = 14 mA 5
Logic High Output Supply Current (QCPL-074H) IDDH 7.6 12 mA IF = 0 5
Propagation Delay Time to Logic Low Output (3.3V) tPHL 29 40 ns IF = 14mA, CL = 15pF, VDD=3.3V, CMOS Signal Levels 6
Propagation Delay Time to Logic Low Output (5V) tPHL 50 ns IF = 14mA, CL = 15pF, VDD=5V, CMOS Signal Levels 6
Propagation Delay Time to Logic High Output (3.3V) tPLH 22 40 ns IF = 14mA, CL = 15pF, VDD=3.3V, CMOS Signal Levels 6
Propagation Delay Time to Logic High Output (5V) tPLH 50 ns IF = 14mA, CL = 15pF, VDD=5V, CMOS Signal Levels 6
Pulse Width tPW 66.7 ns 6
Pulse Width Distortion (3.3V) /PWD/ 0 7 25 ns IF = 14mA, CL = 15pF, VDD=3.3V, CMOS Signal Levels 6
Pulse Width Distortion (5V) /PWD/ 30 ns IF = 14mA, CL = 15pF, VDD=5V, CMOS Signal Levels 6
Propagation Delay Skew tPSK 30 ns IF = 14mA, CL = 15pF, CMOS Signal Levels 6
Output Rise Time (10%-90%) tR 20 ns IF = 14mA, CL = 15pF, CMOS Signal Levels 6
Output Fall Time (90%-10%) tF 25 ns IF = 14mA, CL = 15pF, CMOS Signal Levels 6
Common Mode Transient Immunity at Logic High Output /CMH/ 10 15 kV/µs VCM = 1000 V, TA = 25°C, IF = 0 mA 6
Common Mode Transient Immunity at Logic Low Output /CML/ 10 15 kV/µs VCM = 1000 V, TA = 25°C, IF = 14 mA 6
Input-Output Insulation Leakage Current II-O 1 µA 45% RH, t = 5 s, VI-O = 3 kV DC, TA = 25°C 6
Input-Output Momentary Withstand Voltage VISO 3750 Vrms RH ≤ 50%, t = 1 min., TA = 25°C 6
Input-Output Capacitance CI-O 0.6 pF f = 1 MHz, TA = 25°C 6
Storage Temperature TS -55 125 °C 5
Ambient Operating Temperature TA -40 105 °C 5
Supply Voltage VDD 0 6 V 5
Output Voltage VO -0.5 V Upper limit printed as VDD + 0.5 V; not numeric 5
Average Forward Input Current IF 20 mA 5
Average Output Current IO 10 mA 5
Lead Solder Temperature 260 °C 10 sec., 1.6 mm below seating plane 5
Ambient Operating Temperature TA -40 105 °C 5
Supply Voltage (5V range) VDD 4.5 5.5 V 5V operation 5
Supply Voltage (3.3V range) VDD 3 3.6 V 3.3V operation 5
Input Current (ON) IF 9 18 mA 5
Supply Voltage Slew Rate SR 0.5 500 V/ms 5

CAD (KiCad official)

  • Symbol: QCPL-074H-500E
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: qcpl-074h-500e-etched.step / qcpl-074h-500e-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); qcpl-074h-500e.step / qcpl-074h-500e.glb are the bare package body.

Provenance

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

  • Datasheet: Broadcom AVAGO datasheet (10 pp, sha256 87574500a3d7b62a, 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