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Revenue from Contract with Customers
 9 Months Ended
Dec. 25, 2020
Revenue from Contract with Customer [Abstract]  
Revenue from Contracts with Customers Revenue from Contracts with Customers
The Company generates revenue from the sale of magnetic sensor integrated circuits (“ICs”), application-specific analog power semiconductors, wafer foundry products and from the sale of Sanken-related products. The following tables summarize net sales disaggregated by core end market and application, by product and by geography for the three- and nine-month periods ended December 25, 2020 and December 27, 2019. The categorization of net sales by core end market and application is determined using various characteristics of the product and the application into which the Company’s product will be incorporated. The categorization of net sales by geography is determined based on the location the products are being shipped to.
Net sales by core end market and application:
Three-Month Period EndedNine-Month Period Ended
December 25,
2020		December 27,
2019		December 25,
2020		December 27,
2019
Core end market:
Automotive$113,902 $99,074 $279,759 $289,681 
Industrial23,654 21,358 65,710 56,095 
Other26,893 15,070 70,630 53,399 
Other applications:
Wafer foundry products— 16,634 — 49,622 
Distribution of Sanken products— 7,666 — 26,688 
Total net sales$164,449 $159,802 $416,099 $475,485 
Net sales by product:
Three-Month Period EndedNine-Month Period Ended
December 25,
2020		December 27,
2019		December 25,
2020		December 27,
2019
Power integrated circuits (“PIC”)$54,406 $43,665 $146,276 $123,900 
Magnetic sensors (“MS”)109,457 91,837 268,956 275,275 
Photonics586 — 867 — 
Wafer foundry products— 16,634 — 49,622 
Distribution of Sanken products— 7,666 — 26,688 
Total net sales$164,449 $159,802 $416,099 $475,485 
Net sales by geography:
Three-Month Period EndedNine-Month Period Ended
December 25,
2020		December 27,
2019		December 25,
2020		December 27,
2019
Americas:
United States$23,934 $27,498 $57,892 $86,746 
Other Americas5,620 4,722 10,797 15,930 
EMEA:
Europe28,239 24,341 70,459 76,622 
Asia:
Japan26,439 46,010 72,570 131,950 
Greater China46,172 35,284 116,178 95,244 
South Korea17,606 14,119 43,733 41,413 
Other Asia16,439 7,828 44,470 27,580 
Total net sales$164,449 $159,802 $416,099 $475,485 
The Company recognizes sales net of returns, credits issued, price protection adjustments and stock rotation rights. At December 25, 2020 and March 27, 2020, these adjustments were $16,574 and $17,473, respectively, and were netted against trade accounts receivable in the unaudited consolidated balance sheets. These amounts represent activity of credits of $899 and $815 for the nine-month periods ended December 25, 2020 and December 27, 2019, respectively.
Unsatisfied performance obligations primarily represent contracts for products with future delivery dates. The Company elected to not disclose the amount of unsatisfied performance obligations as these contracts have original expected durations of less than one year.