- KA4558IA
- Fairchild Semiconductor
- DUAL OPERATIONAL AMPLIFIER
- KA4558ID
- Fairchild Semiconductor Corporation
- DUAL OP-AMP, 7500 uV OFFSET-MAX, PDSO8
- KA4558IDTF
- Fairchild Semiconductor
- OP Amp, Dual Operational Amplifier, Tape And Reel
- KA4558IS
- Fairchild Semiconductor Corporation
- DUAL OP-AMP, 7500 uV OFFSET-MAX, PSIP9