STR-L451 The Sanken STR-L451 is a power IC designed for flyback switching power supplies. It features a high breakdown voltage and integrated MOSFET.
Mfr Part #:

STR-L451

Available from 1 distributors
Mfr Name: Sanken
Sanken
The Sanken STR-L451 is a power IC designed for flyback switching power supplies. It features a high breakdown voltage and integrated MOSFET.
✓ Total Stock: 20,653 pcs
$ Price Range: $0.75

STR-L451 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
20,653 pcs
20653 pcs On Request 1 On Request On Request 1126+ On Request On Request

STR-L451 Specifications Quick View

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

STR-L451 Description

Short technical summary and product information.

The Sanken STR-L451 is a power integrated circuit designed for quasi-resonant switching type power supplies. It incorporates a power MOSFET and a controller IC within a SIP-10 package, enabling high efficiency and low noise operation.

 

Key electrical specifications include a maximum drain-source breakdown voltage (VDSS) of 900V and a maximum drain-source on-resistance (RDS(ON)) of 7.7Ω. The device supports a maximum operating voltage of 35V and can handle up to 74W of power. It is designed for flyback topology with an isolated output and includes fault protection features such as current limiting, overload protection, and over-temperature shutdown.

 

This IC is recommended for systems requiring low-height and sufficient creepage isolation between high and low voltage terminals. The package is a 10-SIP, 8-lead configuration with a straight lead pitch of 2.54mm and a height over PCB of less than 12mm. Mounting is done via through-hole method.

 

Applications include switching power supplies for standby power, home appliances, digital consumer equipment, OA equipment, industrial machines, and communication devices.

STR-L451 Quick Information

Product Type: Power IC
Series: STR-L400
Canonical Name: STR-L451 Power IC
Subcategory: AC DC Converters, Offline Switches

STR-L451 Compliance

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

STR-L451 Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

STR-L451 Features

  • Quasi-resonant operation for high efficiency.
  • Integrated power MOSFET and controller IC.
  • 900V drain-source breakdown voltage.
  • Low-height SIP-10 package design.
  • Various protection features included.

STR-L451 Applications

  • Used in switching power supplies.
  • Suitable for home appliances.
  • Ideal for digital consumer equipment.
  • Applicable to OA equipment.
  • Designed for industrial machines.

STR-L451 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum operating voltage of the STR-L451?

The maximum operating voltage is 35V.

What is the package type of the STR-L451?

The STR-L451 comes in a 10-SIP (8 leads) package, also known as STA-10L, with through-hole mounting.

What is the drain-source breakdown voltage?

The minimum drain-source breakdown voltage is 900V.

What is the maximum drain-source on-resistance?

The maximum drain-source on-resistance is 7.7Ω.

What is the power dissipation of the STR-L451?

The power dissipation is 74W.

What topology and output isolation does the STR-L451 use?

It uses a flyback topology with isolated output.

What fault protections are included?

Fault protections include current limiting, overload, and overtemperature protection.

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