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onsemi CNY17F3VM — Optoisolators

CNY17F3VM onsemi Optoisolator – 4170Vrms, 100-200% CTR

MPNCNY17F3VM
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onsemi CNY17F3VM, single-channel DC-input transistor-output optocoupler, 4170Vrms isolation, 100-200% CTR at 10mA, 70V output, through-hole 6-DIP package, -40°C to 100°C operating range.

$0.2752Ref. price · indicative, final on quote
onsemi CNY17F3VM datasheet (PDF)
Packaging6-DIP (0.300", 7.62mm)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

CNY17F3VM specifications
ParameterValue
Input typeDC
Output typeTransistor
MountingThrough Hole
Voltage - isolation4170Vrms
Voltage - output70V
Voltage - forward (Vf)1.35V
Current - output (Channel)50mA
Current transfer ratio200% @ 10mA
Current - DC forward (If)60 mA
Operating temperature-40°C~100°C
PackageBulk
Case6-DIP (0.300\", 7.62mm)
Channels1
Vce saturation400mV
Rise (Fall time)4µs, 3.5µs (Max)
Turn on (Turn off time)2µs, 3µs

Product details

Isolation barrier and switching performance

The CNY17F3VM provides 4170Vrms galvanic isolation between input and output — enough for reinforced insulation in mains-referenced circuits like motor drives, PLC digital inputs, and SMPS feedback loops. The single transistor output switches up to 50mA at 70V, with a typical turn-on time of 2µs and turn-off of 3µs, which keeps up with 100kHz PWM signals without pulse stretching.

CTR range and drive margin

Current transfer ratio is specified from 100% to 200% at If=10mA — that means at 10mA LED current the phototransistor can sink at least 10mA and up to 20mA at the output. This 2:1 min-to-max spread is typical for the CNY17 series; the '3' bin (100-200%) sits between the '2' bin (63-125%) and the '4' bin (160-320%). For driving a 5V CMOS input with a 10kΩ pull-up, the 100% min CTR guarantees the output pulls below 0.8V at 10mA LED drive.

Frequently asked questions

What is the price of CNY17F3VM?

Buyers need to compare pricing before purchasing.

Is CNY17F3VM in stock at distributors?

Availability determines lead time and sourcing decisions.

What is the datasheet for CNY17F3VM?

Engineers need full specifications to validate fit.

What is the equivalent or replacement for CNY17F3VM?

Sourcing may need alternatives if part is unavailable or obsolete.

What is the isolation voltage of CNY17F3VM?

Critical for safety compliance in design.

Is CNY17F3VM obsolete or end-of-life?

Lifecycle status affects long-term reliability and second sourcing.