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FSCQ0765RTYDTU The ON Semiconductor FSCQ0765RTYDTU is an offline switch IC designed for quasi-resonant converters. It offers up to 100W output power and operates within a 9V to 20V input voltage range.
Mfr Part #:

FSCQ0765RTYDTU

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
The ON Semiconductor FSCQ0765RTYDTU is an offline switch IC designed for quasi-resonant converters. It offers up to 100W output power and operates within a 9V to 20V input voltage range.
✓ Total Stock: 59 pcs
$ Price Range: $0.75

FSCQ0765RTYDTU Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Fe Components ✓
Non-Authorised Inventory information
44 pcs
On Request
44 pcs On Request 1 On Request On Request On Request On Request On Request
Bristol Electronics ✓
Non-Authorised Inventory information
15 pcs
On Request
15 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 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.

FSCQ0765RTYDTU 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)
Supplier Device Package
Topology
Voltage
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FSCQ0765RTYDTU Description

Short technical summary and product information.

The ON Semiconductor FSCQ0765RTYDTU is an integrated Pulse Width Modulation (PWM) controller and SENSEFET designed for quasi-resonant off-line Switch Mode Power Supplies (SMPS). This device is optimized for Quasi-Resonant Converters (QRC), offering lower EMI and higher power conversion efficiency compared to conventional hard-switched converters.

 

Key features include a maximum output power of 100W at 230 VAC, an operating voltage range of 9V to 20V, and a switching frequency of 20kHz. It incorporates advanced protection features such as pulse-by-pulse current limit, 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. The device also features under-voltage lockout (UVLO) with hysteresis and a built-in soft-start function.

 

Packaged in a TO-220-5 Full Pack, Formed Leads configuration, the FSCQ0765RTYDTU is suitable for through-hole mounting. It is designed for applications such as color TVs (CTV) and audio amplifiers, providing a cost-effective platform for quasi-resonant switching flyback converters with minimal external components.

FSCQ0765RTYDTU Quick Information

Product Type: AC DC Converter
Series: FSCQ
Canonical Name: FSCQ0765RTYDTU Quasi-Resonant Converter
Subcategory: AC DC Converters

FSCQ0765RTYDTU Compliance

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

FSCQ0765RTYDTU Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

FSCQ0765RTYDTU Features

  • Optimized for Quasi-Resonant Converter (QRC).
  • Internal High Voltage SENSEFET integrated.
  • 100W maximum output power.
  • TO-220-5L package for through-hole mounting.
  • Pb-Free and Halide-Free device.

FSCQ0765RTYDTU Applications

  • Suitable for color TV power supplies
  • Used in audio amplifier SMPS designs
  • Ideal for quasi-resonant flyback converters
  • Designed for noise-sensitive offline applications
  • Supports under 1W standby power consumption

FSCQ0765RTYDTU FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the FSCQ0765RTYDTU?

9V to 20V.

What packages are available for this part?

TO-220F-5L and TO-220-5 Full Pack with formed leads.

What is the operating temperature range?

-25°C to 85°C.

What is the maximum power output?

Up to 100W at 230VAC open frame, 85W at 85-265VAC open frame.

What protection features does the FSCQ0765RTYDTU include?

Current limiting, over-load, over-temperature, and over-voltage protection.

What is the switching topology?

Flyback with isolated output.

Does it have an internal switching FET?

Yes, the device includes an internal switch.

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