| 1638841 | U4793B | Overload Monitoring with Resistive Load, VT=44.5 mV | TEMIC |
| 1638842 | U4793B-FP | Current monitor IC. | Atmel |
| 1638843 | U4793B-FP | Overload Monitoring with Resistive Load, VT=44.5 mV | TEMIC |
| 1638844 | U479B | 2 comparators, 8-mV threshold, single-lamp application | Atmel |
| 1638845 | U479B | Automotive Lamp Outage Monitor, VT=8 mV | TEMIC |
| 1638846 | U479B-FP | Automotive lamp-outage monitor IC. | Atmel |
| 1638847 | U479B-FP | Automotive Lamp Outage Monitor, VT=8 mV | TEMIC |
| 1638848 | U490B | One-shot power control for electric staplers | Atmel |
| 1638849 | U490B | One-Shot Phase Control | TEMIC |
| 1638850 | U4930B | Single Chip TV Baseband Processor | TEMIC |
| 1638851 | U4935B | SECAM Decoder | TEMIC |
| 1638852 | U4KB80R | General Purpose Rectifiers / SIP Bridges | Shindengen |
| 1638853 | U4SB20 | General Purpose Rectifiers(200V 4A) | Shindengen |
| 1638854 | U4SB60 | General Purpose Rectifiers(600V 4A) | Shindengen |
| 1638855 | U4SBA20 | General Purpose Rectifiers(200V 4A) | Shindengen |
| 1638856 | U4SBA60 | General Purpose Rectifiers(600V 4A) | Shindengen |
| 1638857 | U5020M | Watchdog timer | Atmel |
| 1638858 | U5020M | Digital Window Watchdog Timer | TEMIC |
| 1638859 | U5020M-FP | Digital window watchdog timer. | Atmel |
|
| 1638860 | U5020M-FP | Digital Window Watchdog Timer | TEMIC |
| 1638861 | U5021M | Watchdog timer | Atmel |
| 1638862 | U5021M | Digital Window Watchdog Timer | TEMIC |
| 1638863 | U5021M-NFP | DIGITAL WINDOW WATCHDOG TIMER | Atmel |
| 1638864 | U505D | Static 8192 bit ROM, mask programmed, possibly equivalent I2308 | RFT |
| 1638865 | U5196NL | Monolithic N-Channel JFET Duals | Vishay |
| 1638866 | U5197NL | Monolithic N-Channel JFET Duals | Vishay |
| 1638867 | U5198NL | Monolithic N-Channel JFET Duals | Vishay |
| 1638868 | U5199NL | Monolithic N-Channel JFET Duals | Vishay |
| 1638869 | U5545NL | Monolithic N-Channel JFET Duals | Vishay |
| 1638870 | U5546NL | Monolithic N-Channel JFET Duals | Vishay |
| 1638871 | U5547NL | Monolithic N-Channel JFET Duals | Vishay |
| 1638872 | U555C | Static 8192 bit EPROM, possibly equivalent I2708 | RFT |
| 1638873 | U584 | Voltage conversion regulator. +5V input. Adjustable output voltage from 3.8B down to 1.3V. Current limit 8.0A.min; 8.5A,max. | Contek Microelectronics |
| 1638874 | U585 | Voltage conversion regulator. +5V input. Adjustable output voltage from 3.8B down to 1.3V. Current limit 5.0A.min; 5.5A,max. | Contek Microelectronics |
| 1638875 | U587 | Voltage conversion regulator. +5V input. Adjustable output voltage from 3.8B down to 1.3V. Current limit 3.0A.min; 3.6A,max. | Contek Microelectronics |
| 1638876 | U5A2CI | Ultra Fast Recovery Rectifier Diode | Korea Electronics (KEC) |
| 1638877 | U5A2CIC | Ultra Fast Recovery Rectifier Diode | Korea Electronics (KEC) |
| 1638878 | U5A4CI | Ultra Fast Recovery Rectifier Diode | Korea Electronics (KEC) |
| 1638879 | U5A4CIC | Ultra Fast Recovery Rectifier Diode | Korea Electronics (KEC) |
| 1638880 | U5A6CD | Ultar Fast Recovery Rectifier Diode | Korea Electronics (KEC) |
