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4N25SM The ON Semiconductor 4N25SM is a phototransistor optocoupler featuring 4170Vrms isolation and a 20% minimum current transfer ratio. It is housed in a 6-SMD package.
Mfr Part #:

4N25SM

Available from 3 distributors
Mfr Name: On Semiconductor
On Semiconductor
The ON Semiconductor 4N25SM is a phototransistor optocoupler featuring 4170Vrms isolation and a 20% minimum current transfer ratio. It is housed in a 6-SMD package.
✓ Total Stock: 259,092 pcs
$ Price Range: $0.99

4N25SM Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
Non-Authorised Inventory information
258,286 pcs
On Request
258286 pcs On Request 1 On Request On Request On Request On Request On Request
Flip Electronics ✓
Non-Authorised Inventory information
800 pcs
On Request
800 pcs On Request 1 On Request On Request On Request On Request On Request
Emiteli ✓
Non-Authorised Inventory information
6 pcs
On Request
6 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

4N25SM Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Current Transfer Ratio (Min)
Input Type
Junction Temperature
Mounting Type
Number of Channels
Operating Temperature
Output Power
Output Type
Storage Temperature
Supplier Device Package
Turn On
Vce Saturation (Max)
Voltage
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4N25SM Description

Short technical summary and product information.

The ON Semiconductor 4N25SM is a general-purpose optocoupler consisting of a gallium arsenide infrared emitting diode driving a silicon phototransistor. It provides 4170Vrms of isolation and is suitable for applications requiring signal isolation.

 

Key electrical characteristics include a minimum current transfer ratio of 20% at 10mA and a Vce saturation of 500mV maximum. The device operates within a temperature range of -55°C to 100°C and has a maximum total power dissipation of 270mW at 25°C.

 

This optocoupler is designed for surface mounting in a 6-SMD, Gull Wing package. Its applications include power supply regulators, digital logic inputs, and microprocessor inputs, where reliable signal isolation is critical.

 

The 4N25SM meets RoHS3 compliance standards and has an MSL 1 rating, indicating unlimited shelf life under standard conditions.

4N25SM Quick Information

Product Type: Optocoupler
Canonical Name: 4N25SM Phototransistor Optocoupler
Subcategory: Optoisolators - Transistor, Photovoltaic Output

4N25SM Compliance

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

4N25SM Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

4N25SM Features

  • Provides 4170Vrms of isolation.
  • Minimum CTR of 20% at 10mA.
  • Surface mountable 6-SMD package.
  • Operates from -55°C to 100°C.
  • Suitable for power supply regulators.

4N25SM Applications

  • Used in power supply regulators.
  • Suitable for digital logic inputs.
  • Ideal for microprocessor inputs.
  • Provides essential signal isolation.

4N25SM FAQs

5 frequently asked questions generated from this part’s specifications.
What is the isolation voltage of the 4N25SM optocoupler?

The 4N25SM optocoupler provides 4170Vrms of isolation.

What is the minimum current transfer ratio for the 4N25SM?

The minimum current transfer ratio for the 4N25SM is 20% at an input current of 10mA and VCE of 10V.

What is the operating temperature range of the 4N25SM?

The 4N25SM operates within a temperature range of -55°C to 100°C.

What type of package is the 4N25SM supplied in?

The 4N25SM is supplied in a 6-SMD, Gull Wing package.

What are the typical applications for the 4N25SM optocoupler?

The 4N25SM is used in power supply regulators, digital logic inputs, and microprocessor inputs.

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