| KA258 | Fairchild Semiconductor | Dual Operational Amplifier |
| KA258D | Fairchild Semiconductor | Dual Operational Amplifier |
| KA258DTF | Fairchild Semiconductor | Dual Operational Amplifier |
| KA258A | Fairchild Semiconductor | Dual Operational Amplifier |
| KA258AD | Fairchild Semiconductor | Dual Operational Amplifier |
| KA258ADTF | Fairchild Semiconductor | Dual Operational Amplifier |
| KA2904 | Fairchild Semiconductor | Dual Operational Amplifier |
| KA2904D | Fairchild Semiconductor | Dual Operational Amplifier |
| KA2904DMTF | Fairchild Semiconductor | Dual Operational Amplifier |
| KA2904DTF | Fairchild Semiconductor | Dual Operational Amplifier |
| KA358 | Fairchild Semiconductor | Dual Operational Amplifier |
| KA358D | Fairchild Semiconductor | Dual Operational Amplifier |
| KA358DTF | Fairchild Semiconductor | Dual Operational Amplifier |
| KA358DTF_NL | Fairchild Semiconductor | Dual Operational Amplifier |
| KA358S | Fairchild Semiconductor | Dual Operational Amplifier |
| KA358STU | Fairchild Semiconductor | Dual Operational Amplifier |
| KA358A | Fairchild Semiconductor | Dual Operational Amplifier |
| KA358AD | Fairchild Semiconductor | Dual Operational Amplifier |
| KA358ADTF | Fairchild Semiconductor | Dual Operational Amplifier |