| Manufacturer | Part Number | Description |
|---|---|---|
Samsung Semiconductor
| K6F1616T6B-EF55 | 1M x16 bit Super Low Power and Low Voltage Full CMOS Static RAM |
Philips Semiconductors (now NXP Semiconductors)
| EF55 | Pentode |
Mullard
| EF55 | Video Frequency Pentode |
Littelfuse
| RHEF550 | POLYSWITCH RESETTABLE DEVICES |
