AC-Input Multi-Channel Full-Pitch Phototransistor Optocoupler

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Broadcom ACPL-844 is an AC-input quad channel full-pitch transistor optocoupler which contains eight light emitting diode optically coupled to four separate phototransistor. It is packaged in a 16-pin DIP package.

It is also available in wide-lead spacing option and lead bend SMD option with input-output isolation voltage at 5000 Vrms. Response time, tr, is typically 4 μs and CTR is 20% to 300%.


  • Current transfer ratio
    (CTR: min. 20% at IF = ±1mA, VCE = 5V)
  • High input-output isolation voltage
    (VISO = 5,000VRMS)
  • Response time
    (tr: typ. 4μs at VCE = 2V, IC = 2mA, RL= 100¿)
  • Compact dual-in-line package
  • Safety and regulatory approvals
    UL 1577
    IEC/EN/DIN EN 60747-5-2
  • Options available are:
    W00 = 0.4" Lead Spacing Option
    300 = Lead Bend SMD Option
    000E = Lead Free Option


  • I/O Interface for Programmable controllers, computers
  • Sequence controllers
  • System appliances, measuring instruments
  • Signal transmission between circuits of different potentials and impedances

Lifecycle Status


Substance Compliance

  • RoHS
    Pb-free options
Specification Value
Lifecycle Active
Distrib. Inventory Yes
BVCEO (V) 80
CTR Max. (%) 400
CTR Min. (%) 20.0
IF Min. (mA) 50.0
RoHS6 Compliant Pb-free options only
Package 300mil S016
UL Insulation Rating Viso (VRMS) 5000.0
Vf max (V) 1.4
IF Min. (mA) 50
Application Note2 i
Brochures1 i
Data Sheet1 i
Options Data Sheet6 i
Product Change Notice (PCN)1 i
Regulatory Certificate1 i
Selection Guide2 i
White Papers1 i
FAQs1 i
Promotional Material1 i


AC-Input Lead Free General Purpose Phototransistor Optocoupler