| Manufacturer | Part Number | Description |
|---|---|---|
SYC
| CD4571A | HEX SCHMITT TRIGGER |
Microsemi (now Microchip Technology)
| CD4571A | (CD45xx) 6.4 VOLT ZENER VOLTAGE |
VPT Components
| CD4571A | TC Zener Diode |
Compensated Deuices Incorporated
| CD4571A | 6.4 VOLT ZENER VOLTAGE + 5% |
