Mfr Part #:

4N39

Mfr Name: Siemens

The Siemens 4N39 is an optically coupled SCR with a Gallium Arsenide infrared emitter and a silicon photo SCR sensor. It is suitable for SCR triac and solid state relay applications.

✓ Total Stock: 100 pcs

$ Price Range: $2.71

4N39 Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Spartce Electronics. ✓ Non-Authorised Inventory information	100 pcs On Request	100 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

4N39 Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Siemens
Forward Current	10 mA
Forward Voltage	1.1 V
Mounting Type	Surface Mount
Power Dissipation	450 mW

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4N39 Description

Short technical summary and product information.

The Siemens 4N39 is an optocoupler designed for high-voltage applications. It features an optically coupled SCR configuration, utilizing a Gallium Arsenide infrared emitter and a silicon photo SCR sensor.

Key electrical specifications include an isolation voltage of 5300Vrms, a maximum output current of 300mA, and a typical forward voltage of 1.1V at 10mA. The device has a power dissipation rating of 450mW.

This component is housed in a SMD/SMT package and is designed for surface mounting. It operates within a temperature range of -55°C to 100°C.

The 4N39 is well-suited for SCR triac and solid state relay applications where high blocking voltages and low input current sensitivity are required.

4N39 Quick Information

Product Type: Optocoupler

Canonical Name: 4N39 Optically Coupled SCR

Subcategory: Optocoupler

4N39 Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

4N39 Estimated Pricing

Qty	Low	High
1+	$2.71	$2.71

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

4N39 Features

Optically coupled SCR with photo SCR sensor.
High isolation voltage of 5300Vrms.
Maximum output current of 300mA.
Surface mount SMD/SMT package.
Wide operating temperature range.

4N39 Applications

Used in SCR triac applications.
Suitable for solid state relays.
High blocking voltage designs.
Low input current sensitivity needs.

4N39 FAQs

7 frequently asked questions generated from this part’s specifications.

What package does the 4N39 come in?

The 4N39 comes in a Surface Mount SMD/SMT package.

What is the operating temperature range?

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

What is the typical forward current?

The typical forward current is 10 mA.

What is the forward voltage?

The forward voltage is 1.1 V at 10 mA.

What is the maximum output current?

The maximum output current is 300 mA.

What is the isolation voltage?

The isolation voltage is 5300 Vrms.

What is the maximum power dissipation?

The maximum power dissipation is 450 mW.