| 1638321 | U20A6CIC | Ultar Fast Recovery Rectifier Diode | Korea Electronics (KEC) |
| 1638322 | U20C05 | POWER RECTIFIERS(20A,50-200V) | MOSPEC Semiconductor |
| 1638323 | U20C10 | POWER RECTIFIERS(20A,50-200V) | MOSPEC Semiconductor |
| 1638324 | U20C15 | POWER RECTIFIERS(20A,50-200V) | MOSPEC Semiconductor |
| 1638325 | U20C20 | POWER RECTIFIERS(20A,50-200V) | MOSPEC Semiconductor |
| 1638326 | U20C30 | POWER RECTIFIERS(20A,300-600V) | MOSPEC Semiconductor |
| 1638327 | U20C40 | POWER RECTIFIERS(20A,300-600V) | MOSPEC Semiconductor |
| 1638328 | U20C50 | POWER RECTIFIERS(20A,300-600V) | MOSPEC Semiconductor |
| 1638329 | U20C60 | POWER RECTIFIERS(20A,300-600V) | MOSPEC Semiconductor |
| 1638330 | U20D05 | POWER RECTIFIERS(20A,50-200V) | MOSPEC Semiconductor |
| 1638331 | U20D10 | POWER RECTIFIERS(20A,50-200V) | MOSPEC Semiconductor |
| 1638332 | U20D15 | POWER RECTIFIERS(20A,50-200V) | MOSPEC Semiconductor |
| 1638333 | U20D20 | POWER RECTIFIERS(20A,50-200V) | MOSPEC Semiconductor |
| 1638334 | U20D30 | POWER RECTIFIERS(20A,300-600V) | MOSPEC Semiconductor |
| 1638335 | U20D40 | POWER RECTIFIERS(20A,300-600V) | MOSPEC Semiconductor |
| 1638336 | U20D50 | POWER RECTIFIERS(20A,300-600V) | MOSPEC Semiconductor |
| 1638337 | U20D60 | POWER RECTIFIERS(20A,300-600V) | MOSPEC Semiconductor |
| 1638338 | U20DL2C48A | HIGH EFFICIENCY DIODE STACK (HED) SILICON EPITAXIAL TYPE SWITCHING MODE POWER SUPPLY APPLICATION CONVERTER & CHOPPER APPLICATION | TOSHIBA |
| 1638339 | U20DL2C53A | High Efficiency Diode Stack (HED) Silicon Epitaxial Type Switching Mode Power Supply Application Converter&Chopper Application | TOSHIBA |
|
| 1638340 | U20FL2C48A | HIGH EFFICIENCY DIODE STACK (HED) SILICON EPITAXIAL TYPE SWITCHING MODE POWER SUPPLY APPLICATION CONVERTER & CHOPPER APPLICATION | TOSHIBA |
| 1638341 | U20FWJ2C48M | SCHOTTKY BARRIER RECTIFIER STACK SWITCHING MODE POWER SUPPLY APPLICATION CONVERTER & CHOPPER APPLICATION | TOSHIBA |
| 1638342 | U20GL2C48A | HIGH EFFICIENCY DIODE STACK (HED) SILICON EPITAXIAL TYPE SWITCHING MODE POWER SUPPLY APPLICATION CONVERTER & CHOPPER APPLICATION | TOSHIBA |
| 1638343 | U20GL2C53A | High Efficiency Diode Stack (HED) Silicon Epitaxial Type Switching Mode Power Supply Application Converter&Chopper Application | TOSHIBA |
| 1638344 | U20JL2C48A | High efficiency diode (HED) | TOSHIBA |
| 1638345 | U2100B | Timer for AC line applications: motion sensors, fans, hand dryer, stair light | Atmel |
| 1638346 | U2100B | Timer Control for Triac and Relay | TEMIC |
| 1638347 | U2101B | Relay Timer | TEMIC |
| 1638348 | U2102B | IGBT/FET control timer for advanced dimmer, motion sensor, reverse phase control applications | Atmel |
| 1638349 | U2102B | Multifunction Timer | TEMIC |
| 1638350 | U210B | Phase Control Circuit l Load Current Feedback Applications | TEMIC |
| 1638351 | U210B-FP | Phase Control Circuit - Load Current Feedback Applications | TEMIC |
| 1638352 | U210B1 | Phase Control CircuituLoad Current Feedback Applications | TEMIC |
| 1638353 | U210BLFP | Phase Control Circuit l Load Current Feedback Applications | TEMIC |
| 1638354 | U211B | As U209B + foldback | Atmel |
| 1638355 | U211B | Phase Control Circuit - General Purpose Feedback | TEMIC |
| 1638356 | U211B2 | Phase-Control Circuit - General Purpose Feedback | TEMIC |
| 1638357 | U211B3 | Phase Control Circuit - General Purpose Feedback | TEMIC |
| 1638358 | U214D | Static (1k x 4) bit RAM, possibly equivalent 2114 | RFT |
| 1638359 | U215D | Static (1k x 1) bit RAM, open drain output, possibly equivalent 2115 | RFT |
| 1638360 | U2164C20 | Dynamic (64k x 1) bit RAM (basic type), possibly equivalent I2164 | RFT |
