4N27 The Vishay Dale 4N27 is a single-channel phototransistor output optocoupler offering 5000Vrms isolation. It is designed for through-hole mounting in a 6-DIP package.
Mfr Part #:

4N27

Available from 1 distributors
Mfr Name: Vishay
Vishay
The Vishay Dale 4N27 is a single-channel phototransistor output optocoupler offering 5000Vrms isolation. It is designed for through-hole mounting in a 6-DIP package.
Total Stock: 4,000 pcs
$ Price Range: $0.99

4N27 Available from 1 distributor

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
4,000 pcs
4000 pcs On Request 1 On Request On Request 944 On Request On Request

4N27 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Current Transfer Ratio (Min)
Forward Voltage
Input Type
Lead Spacing
Mounting Type
Number of Channels
Operating Temperature
Output Type
Reverse Voltage
Rise
Supplier Device Package
Tape & Reel
Vce Saturation (Max)
Voltage

4N27 Description

Short technical summary and product information.

The Vishay Dale 4N27 is a standard single-channel optocoupler featuring a gallium arsenide infrared LED and a silicon NPN phototransistor. It provides 5000 VRMS of isolation and is suitable for interfacing with common logic families.

 

This device operates with a maximum input forward current of 60 mA and a maximum collector current of 100 mA (at t ≤ 1 ms). The collector emitter breakdown voltage is 70 V, and the emitter base breakdown voltage is 7 V. The output exhibits a transistor with base configuration and a Vce saturation voltage of 500mV maximum. The current transfer ratio is a minimum of 10% at 10mA.

 

The 4N27 is housed in a standard 6-DIP (0.300", 7.62mm) package designed for through-hole mounting. It operates within an ambient temperature range of -55°C to 100°C. Applications include AC mains detection, switch mode power supply feedback, and logic ground isolation.

4N27 Quick Information

Product Type: Optocoupler
Canonical Name: 4N27 Phototransistor Output Optocoupler
Subcategory: Phototransistor Output

4N27 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

4N27 Estimated Pricing

Qty Low High
1+ $0.99 $0.99

Estimated market price range - modelled values for guidance only, not live distributor offers.

4N27 Features

  • Provides 5000 VRMS isolation voltage.
  • Features phototransistor output.
  • Designed for through-hole mounting.
  • Operates from -55°C to 100°C.
  • Single channel configuration.

4N27 Applications

  • Used for AC mains detection.
  • Suitable for reed relay driving.
  • Applied in switch mode power supplies.
  • Useful for telephone ring detection.
  • Enables logic ground isolation.

4N27 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the isolation test voltage for the 4N27?

The isolation test voltage is 5000 VRMS.

What is the operating temperature range for the 4N27?

The operating temperature range is -55°C to 100°C.

What type of package is the 4N27 in?

The 4N27 is supplied in a 6-DIP package.

What is the minimum current transfer ratio for the 4N27?

The minimum current transfer ratio is 10% at 10mA.

What is the maximum collector emitter breakdown voltage?

The maximum collector emitter breakdown voltage is 70 V.

What is the input forward current rating?

The input forward current is rated at 60 mA.

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