Skip to main content
Log in
onsemi MCT62 — Optoisolators

MCT62 Optoisolator – onsemi 5000Vrms 2-Ch Transistor Output

MPNMCT62
End of Life

onsemi MCT62, dual-channel transistor-output optocoupler, 8-DIP through-hole package, 5000Vrms isolation, 100% minimum current transfer ratio at 5mA forward current.

$0.9Ref. price · indicative, final on quote
onsemi MCT62 datasheet (PDF)
Packaging8-DIP (0.300", 7.62mm)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MCT62 specifications
ParameterValue
Input typeDC
Output typeTransistor
MountingThrough Hole
Voltage - isolation5000Vrms
Voltage - output30V
Voltage - forward (Vf)1.2V
Current - output (Channel)30mA
Current transfer ratio100% @ 5mA
Current - DC forward (If)60 mA
Operating temperature-55°C ~ 100°C
PackageTube
Case8-DIP (0.300\", 7.62mm)
Channels2
Vce saturation400mV
Turn on (Turn off time)2.4µs, 2.4µs

Product details

Dual-channel optocoupler with 5000Vrms isolation

The MCT62 from onsemi is a dual-channel transistor-output optocoupler in an 8-DIP through-hole package. It provides 5000Vrms galvanic isolation between input and output, making it suitable for breaking ground loops in industrial control interfaces, PLC digital inputs, and motor-drive feedback circuits. Each channel uses a DC-input LED (1.2V typical forward voltage) driving a phototransistor rated for up to 30V output and 30mA continuous output current. The minimum current transfer ratio of 100% at 5mA input ensures the output can saturate a logic-level load without excessive LED drive current.

Switching speed and temperature range for industrial environments

Typical turn-on and turn-off times are both 2.4µs, adequate for slow optocoupler applications like status feedback and relay drivers. The 400mV maximum Vce saturation at the output keeps power dissipation low when driving a logic input, reducing self-heating inside the DIP package.

Sourced to order against BOM quantities — confirm lead time and pricing with an RFQ.

Frequently asked questions

What is the current transfer ratio of the MCT62?

Minimum CTR is 100% at 5mA forward current. This means the phototransistor collector current will be at least 5mA when the LED is driven with 5mA, sufficient to drive a standard logic input or a low-power relay coil.

Is there a pin-compatible alternative to the MCT62?

Several dual-channel DIP-8 optocouplers share the same footprint and pinout (e.g., the 4N35 dual or ILD2 series), but verify the CTR, isolation voltage, and switching speed against your specific load. The MCT62's 5000Vrms and 100% min CTR are its distinguishing specs.