Power Integrations TOP271KG
TOP271KG variants from Power Integrations
TOP271KG Overview
What changes between part numbers, and what to check before you lock the BOM — AC DC Converters and Offline Switchers.
TOP271KG is a Power Integrations order-code family — not a single orderable MPN. This page lists 2 variants that share the same core device but differ in suffix fields (package, grade, reel/tube, electrical bin, etc.). Pick the exact full part number; substituting within the family without checking the datasheet often causes assembly or spec mismatches.
Package: eSOP-12B | Mounting Type: Surface Mount | Max Input Voltage: 265 V | Max Operating Temp: 150 °C | Min Operating Temp: -40 °C Other listed variants describe: Analog IC, 66W Max Power, CMOS, -40°C to 125°C.
Across listed variants, watch these parameters: packages: eSOP-12B.
Example MPNs: TOP271KG, TOP271KG-TL.
Key Features
- Footprint / package: eSOP-12BSingle package option across listed variants; still confirm reel vs tube suffix if you auto-insert.
- Lifecycle mix: ActiveConfirm lifecycle on the exact MPN, not just the base number prefix.
Target Applications
- AC DC Converters and Offline Switchers — design-in and field replacement
- BOM scrub where only the base prefix is known but suffix is TBD
- Second-source checks when the original MPN is constrained
Ordering Variants
Compare 2 TOP271KG part numbers by package, electrical parameters, lifecycle, and availability. Use RFQ for stock and lead-time confirmation.
| Part Number | Description | Package Type | Manufacturer | Lifecycle | RoHS | Availability | Action |
|---|---|---|---|---|---|---|---|
| TOP271KG | Package: eSOP-12B | Mounting Type: Surface Mount | Max Input Voltage: 265 V | Max Operating Temp: 150 °C | Min Operating Temp: -40 °C | eSOP-12B | Power Integrations | Active | Compliant | In Stock | |
| TOP271KG-TL | Analog IC, 66W Max Power, CMOS, -40°C to 125°C | - | Power Integrations | Active | Compliant | In Stock |
Ordering Code Differences
How suffixes on TOP271KG map to package, grade, and reel options.
TOP271KG uses a shared prefix; characters after the prefix encode orderable options. Two lines with the same prefix are not drop-in replacements unless the differing columns match your need.
Suffixes seen here: TL.
Full MPN examples: TOP271KG-TL.
Tip: photograph or copy the reel label — reel diameter, QTY per reel, and moisture sensitivity level (MSL) are often suffix-driven and won't show in the schematic.
How to Choose the Right TOP271KG AC DC Converters and Offline Switchers
Match the footprint first
Packages here: eSOP-12B. Open the land-pattern drawing before you substitute a different suffix.
Electrical headroom
Compare voltage and current columns in the variant table. For TOP271KG, a suffix with lower voltage or current rating will not survive the same circuit without recalculation.
Temp grade letter matters
Commercial (0–70 °C) and industrial (−40–85 °C+) suffixes look similar in the prefix — confirm ambient + self-heating, not just the first page of the datasheet.
Copy the full MPN
Do not BOM only "TOP271KG" — include the full suffix (e.g. TL). RFQ with reel/tube preference and required date code.
Technical Specifications
Core parameters for TOP271KG product family
Identity
Variant Parameters
Source TOP271KG with Octatronics
Request stock confirmation, lead time, date code, and pricing for all 2 ordering variants from Power Integrations. Our team supports active, EOL, and hard-to-find component sourcing.
- Original manufacturer parts with traceability options
- BOM upload and multi-line RFQ support
- Package, grade, and compliance verification
Frequently Asked Questions
Common technical questions about the TOP271KG product family.
Related Base Numbers
Related Series
Explore product families linked to this base-number page.