FSL126HR The ON Semiconductor FSL126HR is an integrated offline switch designed for high-performance Switch-Mode Power Supplies (SMPS). It features a 650V avalanche-rugged SENSEFET and a current-mode PWM controller.
Mfr Part #:

FSL126HR

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
The ON Semiconductor FSL126HR is an integrated offline switch designed for high-performance Switch-Mode Power Supplies (SMPS). It features a 650V avalanche-rugged SENSEFET and a current-mode PWM controller.
✓ Total Stock: 29,812 pcs
$ Price Range: $0.75

FSL126HR 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
29,812 pcs
29812 pcs On Request 1 On Request On Request 1323+ On Request On Request

FSL126HR Specifications Quick View

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

FSL126HR Description

Short technical summary and product information.

The FSL126HR from ON Semiconductor is an integrated Pulse Width Modulator (PWM) and SENSEFET designed for high-performance offline Switch-Mode Power Supplies (SMPS). This device integrates a high-voltage power switching regulator with an avalanche-rugged SENSEFET and a current-mode PWM control block.

 

Key features include a 650V internal avalanche-rugged SENSEFET, under 50 mW standby power consumption at 265 Vac no-load conditions with Burst Mode, and a precision fixed operating frequency with frequency modulation for attenuating EMI. It also offers built-in soft-start of 20 ms, pulse-by-pulse current limit, and various protection features such as Over Voltage Protection (OVP), Overload Protection (OLP), Output-Short Protection (OSP), Abnormal Over-Current Protection (AOCP), and Internal Thermal Shutdown Function (TSD).

 

The FSL126HR is suitable for cost-effective flyback converter designs. It operates with a voltage range of 8V to 26V and a typical operating temperature range of -40°C to 105°C. The device comes in an 8-DIP package suitable for through-hole mounting.

 

Applications include SMPS for VCR, STB, DVD players, home appliances, and adapters. The device provides a basic platform that reduces total component count, design size, and weight while increasing efficiency, productivity, and system reliability compared to discrete solutions.

FSL126HR Quick Information

Product Type: Offline Switch
Canonical Name: FSL126HR Green Mode Power Switch
Subcategory: Offline Switchers

FSL126HR Compliance

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

FSL126HR Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

FSL126HR Features

  • Internal 650V avalanche-rugged SENSEFET
  • Under 50mW standby power consumption
  • Built-in 20ms soft-start
  • Multiple fault protection features
  • 8-DIP package for through-hole mounting

FSL126HR Applications

  • Offline Switch-Mode Power Supplies
  • Cost-effective flyback converters
  • SMPS for consumer electronics
  • Home appliance power supplies
  • Adapter power solutions

FSL126HR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the FSL126HR?

The FSL126HR operates over a supply voltage range of 8V to 26V.

What is the package type for the FSL126HR?

The FSL126HR is available in an 8-DIP (0.300", 7.62mm) through-hole package.

What is the operating temperature range of the FSL126HR?

The FSL126HR operates over -40°C to 105°C ambient temperature.

What is the maximum output power of the FSL126HR?

The FSL126HR provides up to 21W maximum output power in adapter (non-ventilated enclosed) applications and 17W in open-frame designs, for 85-265Vac input.

What is the switching frequency of the FSL126HR?

The typical switching frequency is 100kHz.

What fault protection features does the FSL126HR have?

The FSL126HR includes current limiting, overload, over-temperature, over-voltage, and short-circuit protection.

What is the standby power consumption of the FSL126HR?

Standby power consumption is under 50mW at 265Vac no-load with burst mode.

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