- Analog Devices - Wide variety of ICs.
- Intersil - Large variety of specialized semiconductors.
- Linear Technologies - Manufacturer of a wide variety of ICs. Note LTC4053 - USB battery Charger
- Microchip - Most famous for their PIC processor, but they have many other useful specialized chips.
- Texas Instruments - One of the large american semiconductor manufactures.
- Toko - All sorts of passive and descrete components, including coils and capacitors.