4N38 The Vishay 4N38 is a phototransistor output optocoupler offering 5000 VRMS isolation. It features a 100mA maximum collector current and is housed in a standard DIP-6 package.
Mfr Part #:

4N38

Available from 1 distributors
Mfr Name: Siemens
Siemens
The Vishay 4N38 is a phototransistor output optocoupler offering 5000 VRMS isolation. It features a 100mA maximum collector current and is housed in a standard DIP-6 package.
✓ Total Stock: 57 pcs
$ Price Range: $0.99

4N38 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
57 pcs
57 pcs On Request 1 On Request On Request On Request On Request On Request

4N38 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Forward Current
Forward Voltage
Height
Length
Mounting Style
Number of Channels
Power Dissipation
Reverse Voltage
Width

4N38 Description

Short technical summary and product information.

The Vishay 4N38 is a single-channel optocoupler featuring a gallium arsenide infrared LED and a silicon NPN phototransistor. It provides a high isolation test voltage of 5000 VRMS, achieved through Vishay's double molding isolation manufacturing process.

 

This device is designed to interface with common logic families and has an input-output coupling capacitance of less than 0.5 pF. Key electrical specifications include a 60mA forward current, 100mA maximum collector current, and 80V maximum collector-emitter voltage. The typical forward voltage is 1.5V at 10mA, with a reverse voltage rating of 6V and a power dissipation of 70mW.

 

The 4N38 optocoupler operates within a temperature range of -55C to +100C. It is available in an industry-standard dual-in-line 6-pin package suitable for through-hole mounting. The device is compliant with RoHS Directive 2002/95/EC and WEEE 2002/96/EC.

 

Applications for the 4N38 include AC mains detection, reed relay driving, switch mode power supply feedback, telephone ring detection, logic ground isolation, and logic coupling with high-frequency noise rejection.

4N38 Quick Information

Product Type: Optocoupler
Canonical Name: 4N38 Phototransistor Output Optocoupler
Subcategory: Phototransistor Output Optocouplers

4N38 Compliance

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

4N38 Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

4N38 Features

  • 5000 VRMS isolation test voltage.
  • Phototransistor output for signal coupling.
  • 100mA maximum collector current.
  • DIP-6 industry standard package.
  • Wide -55C to +100C operating temperature.

4N38 Applications

  • AC mains detection circuits.
  • Driving reed relays.
  • Switch mode power supply feedback.
  • Telephone ring detection.
  • Logic ground isolation.

4N38 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the isolation voltage of the 4N38 optocoupler?

The 4N38 optocoupler has an isolation test voltage of 5000 VRMS.

What is the maximum collector current for the 4N38?

The maximum collector current for the 4N38 is 100 mA.

What is the operating temperature range of the 4N38?

The 4N38 operates between -55 C and +100 C.

What package type is the 4N38 available in?

The 4N38 is available in a DIP-6 package.

What is the RoHS status of the 4N38?

The RoHS status is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for the 4N38?

The Moisture Sensitivity Level (MSL) is 1 Unlimited.

4N38 Alternate Parts

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The Vishay 4N36 is a transistor output optocoupler featuring 5000 Vrms isolation and a 60mA forward current. It is housed in a DIP-6 package for through-hole mounting.
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