Product Overview
Three-Terminal Off-Line PWM Controller for 100 kHz Flyback Power Supply Repair
Condition
Unused NOS part in excellent condition with nothing out of the ordinary noted. Sourced from our ongoing recovery from legacy electronics supply chains. Evaluation: Visual inspection only. Function testing not performed. Covered by our No Hassle PartsMine Guarantee.
Ships same business day from Idaho. Packed carefully.
Product Overview
Power Integrations TOP202YAI is an off-line PWM switcher that combines a high-voltage MOSFET and control circuitry in a TO-220-3 package. It is used in legacy switched-mode power supplies where an exact TOPSwitch replacement is needed for repair, maintenance, or prototyping.
Key Features
- TOP202YAI off-line PWM switcher
- 700V maximum drain voltage
- TO-220-3 package
- Fixed 100 kHz switching frequency
- Industrial AI temperature grade
- Integrated high-voltage switch and control logic
- Typical output power range of 15W to 25W depending on input voltage and heat sinking
Applications
- Legacy SMPS repair
- AC-to-DC flyback converters
- Industrial control power supplies
- Monitors, appliances, and telecom power sections
Frequently Asked Questions
What package footprint does this part require?
It requires a TO-220 package footprint and is specified as TO-220-3.
What switching frequency does it use?
It operates at a fixed 100 kHz switching frequency.
Is this interchangeable with newer TOPSwitch-JX or TOPSwitch-HX parts?
No. Research notes state newer series may require circuit modification because pinouts and power ratings differ.
What kind of power supply is this used in?
It is used in off-line switched-mode power supplies, especially flyback AC-to-DC converter designs.
Best fit for buyers who need the exact TOP202YAI for legacy power supply repair without redesigning the original circuit.
