| 641961 | H22B2 | PHOTODARLINGTON OPTICAL INTERRUPTER SWITCH | Fairchild Semiconductor |
| 641962 | H22B2 | SLOTTED OPTICAL SWITCH | QT Optoelectronics |
| 641963 | H22B3 | PHOTODARLINGTON OPTICAL INTERRUPTER SWITCH | Fairchild Semiconductor |
| 641964 | H22B3 | SLOTTED OPTICAL SWITCH | QT Optoelectronics |
| 641965 | H22B4 | PHOTODARLINGTON OPTICAL INTERRUPTER SWITCH | Fairchild Semiconductor |
| 641966 | H22B4 | SLOTTED OPTICAL SWITCH | QT Optoelectronics |
| 641967 | H22B5 | PHOTODARLINGTON OPTICAL INTERRUPTER SWITCH | Fairchild Semiconductor |
| 641968 | H22B5 | SLOTTED OPTICAL SWITCH | QT Optoelectronics |
| 641969 | H22B6 | PHOTODARLINGTON OPTICAL INTERRUPTER SWITCH | Fairchild Semiconductor |
| 641970 | H22B6 | SLOTTED OPTICAL SWITCH | QT Optoelectronics |
| 641971 | H22L | OPTOLOGIC OPTICAL INTERRUPTER SWITCH | Fairchild Semiconductor |
| 641972 | H22L1 | ISO - LOGIC INVERTER SCHMITT TRIGGER INTERRUPTER SWITCH | ISOCOM |
| 641973 | H22L2 | ISO - LOGIC INVERTER SCHMITT TRIGGER INTERRUPTER SWITCH | ISOCOM |
| 641974 | H22LOB | OPTOLOGIC ® OPTICAL INTERRUPTER SWITCH | Fairchild Semiconductor |
| 641975 | H22LOI | OPTOLOGIC ® OPTICAL INTERRUPTER SWITCH | Fairchild Semiconductor |
| 641976 | H22LTB | OPTOLOGIC ® OPTICAL INTERRUPTER SWITCH | Fairchild Semiconductor |
| 641977 | H22LTI | OPTOLOGIC ® OPTICAL INTERRUPTER SWITCH | Fairchild Semiconductor |
| 641978 | H23A1 | MATCHED EMITTED DETECTOR | General Electric Solid State |
| 641979 | H23A2 | MATCHED EMITTED DETECTOR | General Electric Solid State |
|
| 641980 | H23B1 | MATCHED EMITTER DETECTOR PAIR | General Electric Solid State |
| 641981 | H23L1 | Matched Emitter-Detector Pair H23L1 | General Electric Solid State |
| 641982 | H24-1 | ZENER DIODES | Micro Commercial Components |
| 641983 | H24-2 | ZENER DIODES | Micro Commercial Components |
| 641984 | H24-3 | ZENER DIODES | Micro Commercial Components |
| 641985 | H24A1 | PHOTOTRANSISTOR OPTOCOUPLER | Fairchild Semiconductor |
| 641986 | H24A1 | PHOTOTRANSISTOR OPTOCOUPLERS | QT Optoelectronics |
| 641987 | H24A2 | PHOTOTRANSISTOR OPTOCOUPLER | Fairchild Semiconductor |
| 641988 | H24A2 | PHOTOTRANSISTOR OPTOCOUPLERS | QT Optoelectronics |
| 641989 | H24B1 | PHOTOTRANSISTOR OPTOCOUPLER | Fairchild Semiconductor |
| 641990 | H24B1 | THE H24B SERIES CONSISTS OF A GALLIUM ARSENIDE INFRARED EMITTING DIODE COUPLED WITH A SILICON PHOTOTRANSISTOR | QT Optoelectronics |
| 641991 | H24B2 | PHOTOTRANSISTOR OPTOCOUPLER | Fairchild Semiconductor |
| 641992 | H24B2 | THE H24B SERIES CONSISTS OF A GALLIUM ARSENIDE INFRARED EMITTING DIODE COUPLED WITH A SILICON PHOTOTRANSISTOR | QT Optoelectronics |
| 641993 | H256 | Binary counter | SGS-ATES |
| 641994 | H256 | 4-bit binary counter | SGS-ATES |
| 641995 | H257 | Decade counter | SGS-ATES |
| 641996 | H257 | Decade counter | SGS-ATES |
| 641997 | H258 | BCD to decimal decoder Nixie® driver | SGS-ATES |
| 641998 | H258 | BCD to decimal decode/driver | SGS-ATES |
| 641999 | H2584 | PNP EPITAXIAL PLANAR TRANSISTOR | Hi-Sincerity Microelectronics |
| 642000 | H2584 | Mini size of Discrete semiconductor elements | SINYORK |
