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Isocom – Active Components

IsocomISOCOM was incorporated in the UK as “ISOCOM Components Ltd.” in April, 1989.

The company specializes in industrial and commercial Optocouplers/isolators, optoswitches/sensors, and discrete infrared Optoelectronic components. The production plant for ISOCOM Components Ltd. is based in the North of England.

ISOCOM COMPONENTS, a manufacturer of optocouplers & optoswitches, has been a leading supplier of infrared optoelectronic devices for over fifteen years, specializing in optocouplers. ISOCOM Limited manufactures hermetically sealed Optocouplers providing isolation for Electronic Systems. Applications include The International Space Station, Galileo and Glonass. Optocouplers manufactured by ISOCOM Limited have been tested by BAE Systems and ESA. Customers include BAE Systems, CERN, EADS, Galileo Avionica, General Dynamics, Indra, MBDA, NASA, Norsat, Raytheon, Technobit, Teledyne and Tesat. ISOCOM Limited optoelectronic components include detectors, emitters, sensors, hybrid circuits and optical switching products manufactured to radiation hard specifications.

ISOCOM offers competitive product drop-in replacements for all popular optocoupler industry standard types as well as ISOCOM’s own branded parts and custom selections.

Typical applications:

Lighting market
Smart meters
Gas detection/monitoring
Industrial controls
Power supply units
Power protection products
Set top box


  • Optocouplers / Optoisolators
  • Optoswitches / Optosensors
  • Mosfet relays



Line Matching Transformers



Optocouplers / Optoisolators

Optocouplers / Optoisolators:

  • Transistors (Singles, Duals, & Quads)
  • FETS (Single 6 Pin Devices)
  • AC Inputs (Singles, Duals, & Quads + Single 6 Pin Devices)
  • Schmitt Triggers (Single Channel, Microprocessor Compatible)
  • High Speed Logic Couplers (Singles & Duals - 10Mbits/s)
  • High Gain Couplers (Singles & Duals - 4MHz)
  • Darlingtons (Singles, Duals, & Quads)
  • SCRs (Peak Forward Voltage up to 625V)
  • Triacs (Standard & Zero Crossing Devices)
  • Low Power Couplers (Single, Dual, & Quad - Transistor & Darlington Devices)
  • SOIC Couplers
  • Discrete IR Emitter / Transistor or Schmitt Trigger Pairs

    Optoswitches / Optosensors

  • Optoswitches / Optosensors

  • Standard Devices
  • Interrupters( Transistor, Darlington, & Schmitt Trigger Detectors - Singles & Duals)
  • Special Purpose Devices
  • Reflectors
  • Flying Leads
  • 5mm Gap Interrupters
  • Three Standard Package Types
  • Custom Devices
  • Package Dimensions
  • Electrical Characteristics
  • Flying Leads
  • Connectors
  • Complete Assemblies


Mosfet relays

Mosfet relays: 

  • Isocom Components Ltd is developing a range of industry standard MOSFET relays. Due to the extensive reliability program this product range will be launched early into 2005.



(Product Range)

All our products are guaranteed to meet customer-specified electrical characteristics. Yield limits may apply. 

IL1 SFH615A-1 MOC3009 MOC8050 H11L1 PS2501-1 TIL111 TLP121 PC354
IL2 SFH615A-2 MOC3010 MOC8080 H11L2 PS2501-2 TIL113 TLP126 PC355
IL5 SFH615A-3 MOC3011 MOC8100 H11L3 PS2501-4 TIL114 TLP127 PC357
IL74 SFH615A-4 MOC3012 MOC8101 H11L4 PS2502-1 TIL116 TLP181 PC452
ILD1 SFH617A-1 MOC3020 MOC8102 H11AA1 PS2502-2 TIL117 TLP321 PC844 (IS844)
ILD2 SFH617A-2 MOC3021 MOC8103 H11AA2 PS2505-4 TIL119 TLP321-2 PC824 (IS824)
ILD5 SFH617A-3 MOC3022 MOC8104 H11AA3 PS2505-1 TIL128 TLP321-4 PC829 (IS829)
ILD74 SFH617A-4 MOC3023 MOC8106 H11AA4 PS2505-2 TIL191 TLP521 PC849 (IS849)
ILQ1 SFH618A-2 MOC3030 MOC8107 H11AA4 PS2505-4 TIL192 TLP521-2 PC827 (IS827)
ILQ2 SFH618A-3 MOC3031 MOC8108 MCT2 PS2701-1 TIL192A TLP521-4 PC847(IS847)
ILQ5 SFH620-1 MOC3032 MOC8112 MCT2E PS2702-1 TIL192B TLP620  >
ILQ74 SFH620-2 MOC3033 CNX 72A MCT6 PS2705-1 TIL193 TLP620-2  >
MCA230 SFH620-3 MOC3040 CNX 82A MCT61 PS2732-1 TIL193A TLP620-4  >
MCA255 SFH628A-3 MOC3042 H11AV1 MCT62   TIL193B TLP621
SFH600-1 SFH628A-4 MOC3043 H11AV2 MCT210   TIL194 TLP621-2  >
SFH600-2   MOC3051 H11AV3 MCT270   TIL194A TLP621-4  >
SFH600-3   MOC3052 H11D1 MCT271   TIL194B TLP624  >
SFH600-4   MOC3060 H11D2 MCT272   TIL197 TLP624-2  >
SFH601-1   MOC3061 H11D3 MCT273   TIL197A TLP624-4  >
SFH601-2   MOC3062 H11D4 MCT274  > TIL197B  >  >
SFH601-3   MOC3063 H11F1 MCT275  >  >  >  >
SFH601-4   MOC5007 H11F2 MCT276    >  >  >
SFH601-5   MOC5008 H11F3 MCT277    >  >  >
SFH609-2   MOC5009 H11G1 MCT2200    >  >  >
SFH609-3   MOC8021 H11G2 MCT2201    >  >  >
 >   MOC8030 H11G3  >    >  >  >


All 4N25, 4N26, 4N27, 4N28, 4N35, 4N37, 4N38,4N39, CNY17-1, CNY17-2, CNY17-3, CNY17-4, CNY17F-1, CNY17F-2, CNY17F-3, CNY17F-4, H11A1, H11A2, H11A3, H11A4, H11A5, H11D1, H11D2, H11D3

Call us for specific part numbers. 

The innovative ISOCOM solutions below are made to match your unique design requirements. 

CNY75A, CNY75B, CNY75C, CQY80, H11J1, H11J2, H11J3, H11J4, H11J5, IS1, IS121, IS181, IS201, IS202, IS203, IS204, IS205, IS206, IS2701, IS3052, IS357, IS4N45, IS4N46, IS5, IS6003, IS6005, IS6010, IS6015, IS6030, IS604, IS605, IS608, IS609, IS611, IS620, IS621, IS622, IS7000, IS725, IS74, IS829, IS849, ISD1, ISD201, ISD202, ISD203, ISD204, ISD204-1, ISD5, ISD74, ISP321-1, ISP321-2, ISP321-4, ISP521-1, ISP521-2, ISP521-4, ISP620-1, ISP620-2, ISP620-4, ISP621-1, ISP621-2, ISP621-4, ISP624-1, ISP624-2,ISP624-4, ISP814, ISP814-1, ISP815, ISP815-1, ISP815-2, ISP815-3, ISP817, ISP817-1, ISP817-2, ISP817-3, ISP824, ISP825, ISP825-1, ISP825-2, ISP825-3, ISP827, ISP827-1, ISP844, ISP845, ISP847, ISQ1, ISQ201, ISQ202, ISQ203, ISQ204, ISQ5, ISQ74, MCA2230, MCA2231, MCA2255


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Product List:

Part Number Product Name Qty Price (US$)  
4N35XG ISOCOM 4N35XG Optocoupler, Transistor Outputs 0 0.5000
MOC8111XG Isocom MOC8111XG Transistor Output Optocoupler 30V 5300V RMS DIP-6 4,000 0.4000
IS357A IS357A Isocom Optocoupler Transistor, 1 Channel Out 3.75kV 0 0.1500
ISP845-1SM Isocom ISP845-1SM Optocoupler 0 0.0000
ISP814X-SMT&R Isocom ISP814X-SMT/R Transistor Output Optocoupler 5.3KV DIP-4 250 0.5500
IS355 Isocom IS355 4 PIN OPTOCOUPLER (MARKED FPD1), 35V, IS355 RoHS 0 0.3500
SFH615A-2. ISOCOM SFH615A-2X Transistor Output Optocoupler, 1 Channel, 5.3 kV, 63 %, 50 mA, DIP, 4 Pins 0 0.0000
MCT2E Isocom MCT2E Optocoupler 0 0.5100
MCT2. Isocom MCT2 Optocoupler 0 0.5100
MOCD207. ISOCOM MOCD207 Optocoupler, 2 Channels, Out: transistor; 50mA 5V SMD 8Pin 0 0.6500
MOC3031 MOC3031 Optocoupler Triac AC-OUT 1-CH 6-Pin PDIP 0 0.0000