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FSCQ1265RT The FSCQ1265RT is a Fairchild Power Switch from ON Semiconductor, designed for Quasi-Resonant Switching Converters. It features a TO-220-5 package and high output power capabilities.
Mfr Part #:

FSCQ1265RT

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
The FSCQ1265RT is a Fairchild Power Switch from ON Semiconductor, designed for Quasi-Resonant Switching Converters. It features a TO-220-5 package and high output power capabilities.
✓ Total Stock: 196 pcs
$ Price Range: $1.77

FSCQ1265RT Available from 1 distributor

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✓ Non-Authorised
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196 pcs
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FSCQ1265RT Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current Rating
Frequency
Input Voltage
Mounting Type
Operating Temperature
Output Voltage
Power Dissipation
Quiescent Current
Voltage
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FSCQ1265RT Description

Short technical summary and product information.

The FSCQ1265RT is an integrated Pulse Width Modulation (PWM) controller and Sense FET from ON Semiconductor, specifically designed for Quasi-resonant off-line Switch Mode Power Supplies (SMPS) with minimal external components.

 

This device is optimized for Quasi-Resonant Converter (QRC) applications, offering lower EMI and higher power conversion efficiency compared to conventional hard-switched converters. Key electrical specifications include a maximum output power of 170W at 230VAC and 140W at 85-265VAC, an output voltage of 650V, and a frequency of 20kHz. It also features a pulse-by-pulse current limit of 7A and a built-in soft start of 20ms.

 

The FSCQ1265RT is housed in a TO-220-5 package and is designed for through-hole mounting. It operates within a temperature range of -25°C to 85°C. The integrated design reduces component count, size, and weight, making it suitable for cost-effective designs in applications like CTVs, DVD receivers, and audio power supplies.

FSCQ1265RT Quick Information

Product Type: Power Switch
Series: FSCQ
Canonical Name: Fairchild Power Switch for Quasi-Resonant Switching Converter

FSCQ1265RT Compliance

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

FSCQ1265RT Estimated Pricing

Qty Low High
1+ $1.77 $1.77

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

FSCQ1265RT Features

  • Optimized for Quasi-Resonant Converters (QRC).
  • Advanced Burst-Mode for low standby power.
  • Pulse by Pulse Current Limit of 7A.
  • Built-in Soft Start (20ms).
  • TO-220-5 package for through-hole mounting.

FSCQ1265RT Applications

  • Suitable for CTV power supplies.
  • Used in DVD receiver power supplies.
  • Applicable to audio power supplies.
  • Designed for off-line SMPS.

FSCQ1265RT FAQs

5 frequently asked questions generated from this part’s specifications.
What is the maximum output power of the FSCQ1265RT?

The maximum output power is 170W at 230VAC and 140W at 85-265VAC in an open frame design.

What is the output voltage rating for the FSCQ1265RT?

The output voltage is rated at 650V.

What is the operating temperature range for the FSCQ1265RT?

The operating temperature range is from -25°C to 85°C.

What type of package does the FSCQ1265RT come in?

The FSCQ1265RT comes in a TO-220-5 package.

How is the FSCQ1265RT mounted?

The FSCQ1265RT is designed for through-hole mounting.

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