FSCQ1265RTYDTU The On Semiconductor FSCQ1265RTYDTU is a 170W offline switcher IC designed for quasi-resonant flyback converters. It features a 650V breakdown voltage and operates at 20kHz.
Mfr Part #:

FSCQ1265RTYDTU

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
The On Semiconductor FSCQ1265RTYDTU is a 170W offline switcher IC designed for quasi-resonant flyback converters. It features a 650V breakdown voltage and operates at 20kHz.
✓ Total Stock: 4,990 pcs
$ Price Range: $0.75

FSCQ1265RTYDTU Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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4,990 pcs
4990 pcs On Request 1 On Request On Request 1337+ On Request On Request

FSCQ1265RTYDTU Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Control Features
Duty Cycle
Fault Protection
Frequency
Halogen Free
Internal Switch(s)
Lead Style
Mounting Type
Operating Temperature
Output Isolation
Power (Watts)
Protection Features
Supplier Device Package
Topology
Voltage
Voltage Supply

FSCQ1265RTYDTU Description

Short technical summary and product information.

The FSCQ1265RTYDTU from On Semiconductor is an integrated offline switcher IC optimized for quasi-resonant converters (QRC). This device is well-suited for noise-sensitive applications like color TVs and audio amplifiers due to the lower EMI and higher efficiency characteristic of QRCs.

 

Key electrical specifications include a 650V breakdown voltage, a 170W power output, and a 20kHz switching frequency. It operates within a supply voltage range of 9V to 20V and features a 95% duty cycle. The IC incorporates several protection features such as pulse-by-pulse current limiting, overload protection (OLP) with auto-restart, over-voltage protection (OVP) with auto-restart, abnormal over-current protection (AOCP) with latch, and internal thermal shutdown (TSD) with latch.

 

Designed for ease of use, the FSCQ1265RTYDTU includes an integrated PWM controller and a SENSEFET. It also features built-in soft-start (20 ms), under-voltage lockout (UVLO) with hysteresis, and advanced burst-mode operation for low standby power consumption. The device is packaged in a TO-220F-5L (Forming) package suitable for through-hole mounting.

 

This Pb-Free and Halide-Free device offers a cost-effective platform for designing quasi-resonant switching flyback converters, reducing component count, size, and weight while increasing efficiency and system reliability.

FSCQ1265RTYDTU Quick Information

Product Type: Offline Switcher IC
Series: FSCQ
Canonical Name: FSCQ1265RTYDTU Offline Switcher IC
Subcategory: Power Management (PMIC)

FSCQ1265RTYDTU Compliance

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

FSCQ1265RTYDTU Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

FSCQ1265RTYDTU Features

  • Optimized for Quasi-Resonant Converter (QRC) topology.
  • Integrated PWM controller and SENSEFET.
  • 650V breakdown voltage and 170W power output.
  • Includes over-voltage and over-temperature protection.
  • TO-220F-5L package for through-hole mounting.

FSCQ1265RTYDTU Applications

  • Ideal for color TV applications.
  • Suitable for audio amplifier designs.
  • Used in offline switch mode power supplies.
  • Cost-effective flyback converter designs.

FSCQ1265RTYDTU FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the FSCQ1265RTYDTU?

The supply voltage range is 9V to 20V.

What package type does the FSCQ1265RTYDTU use?

It comes in a TO-220-5 Full Pack with formed leads, through-hole mounting.

What is the operating temperature range?

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

What is the switching frequency of the FSCQ1265RTYDTU?

The switching frequency is 20 kHz.

What fault protections are included?

It includes current limiting, overload, over temperature, and over voltage protection.

What topology does the FSCQ1265RTYDTU use?

It uses a flyback topology with isolated output.

What is the maximum output power?

The maximum output power is 170 W.

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