NCP1343FNAAABCD1R2G The NCP1343FNAAABCD1R2G is a high frequency quasi-resonant offline switching controller from On Semiconductor. It operates from 9V to 28V with a frequency range of 25kHz to 500kHz and a 75% duty cycle.
Mfr Part #:

NCP1343FNAAABCD1R2G

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
The NCP1343FNAAABCD1R2G is a high frequency quasi-resonant offline switching controller from On Semiconductor. It operates from 9V to 28V with a frequency range of 25kHz to 500kHz and a 75% duty cycle.
✓ Total Stock: 30,000 pcs
$ Price Range: $0.75

NCP1343FNAAABCD1R2G Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
30,000 pcs
30000 pcs On Request 1 On Request On Request On Request On Request On Request

NCP1343FNAAABCD1R2G Specifications Quick View

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

NCP1343FNAAABCD1R2G Description

Short technical summary and product information.

The NCP1343FNAAABCD1R2G is a high frequency quasi-resonant AC-DC converter and offline switch controller manufactured by On Semiconductor. It is designed for power management applications requiring efficient switching at frequencies from 25kHz to 500kHz.

 

The device operates over a supply voltage range of 9V to 28V and features a 75% duty cycle. It includes comprehensive fault protection with current limiting, overload, over temperature, over voltage, and short circuit protection. The operating temperature range spans -40°C to 125°C (junction temperature).

 

This controller is suitable for use in AC-DC power supplies and offline converters where quasi-resonant operation improves efficiency and reduces electromagnetic interference. The part is typically available in a surface-mount package, though specific package details are not provided in the available data.

NCP1343FNAAABCD1R2G Quick Information

Product Type: AC-DC Converter / Offline Switch Controller
Canonical Name: NCP1343FNAAABCD1R2G High Frequency Quasi-Resonant Offline Switching Controller
Subcategory: Quasi-Resonant Controller

NCP1343FNAAABCD1R2G Compliance

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

NCP1343FNAAABCD1R2G Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

NCP1343FNAAABCD1R2G Features

  • Operates from 9V to 28V supply.
  • Switching frequency from 25kHz to 500kHz.
  • 75% fixed duty cycle operation.
  • Includes over voltage and short circuit protection.
  • Rated for -40°C to 125°C junction temperature.

NCP1343FNAAABCD1R2G Applications

  • Used in AC-DC power supply designs.
  • Ideal for offline switching converters.
  • Suitable for quasi-resonant power topologies.
  • Applicable in industrial power management systems.

NCP1343FNAAABCD1R2G FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the NCP1343FNAAABCD1R2G?

The operating voltage range is 9V to 28V.

What is the operating temperature range of the NCP1343FNAAABCD1R2G?

The operating temperature range is -40°C to 125°C (junction temperature).

What fault protection features does the NCP1343FNAAABCD1R2G include?

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

What is the switching frequency range of the NCP1343FNAAABCD1R2G?

The switching frequency range is 25kHz to 500kHz.

What is the duty cycle of the NCP1343FNAAABCD1R2G?

The duty cycle is 75%.

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