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Zener diodes are designed for operation in a reverse-breakdown mode and are characterized according to their behavior when used in this fashion. Useful as a voltage reference or for voltage limiting purposes, they are also capable of functioning as a one-way valve for current flow in the manner of rectifier diodes, though their behavior in this mode is generally less ideal than that of purpose-built devices. Products within this family implement exactly one instance of this function per device package.
| Select products | Mfr | Description | Package | Supplier Device Package | Mounting Type | Series | Operating Temperature |
|---|---|---|---|---|---|---|---|
![]() 1N4903A $117.54 | Microchip Technology | DIODE ZENER 12.8V 400MW DO7 | Bulk | Through Hole | - | -55°C ~ 100°C | |
![]() 1N4903A/TR $117.67 | Microchip Technology | DIODE ZENER 12.8V 400MW DO7 | Tape & Reel (TR) | Through Hole | - | -55°C ~ 100°C | |
![]() 1N4904 $17.66 | Microchip Technology | DIODE ZENER 12.8V 400MW DO7 | Bulk | Through Hole | - | -25°C ~ 100°C | |
![]() 1N4904/TR $17.80 | Microchip Technology | DIODE ZENER 12.8V 400MW DO7 | Tape & Reel (TR) | Through Hole | - | -25°C ~ 100°C | |
![]() 1N4904A $17.95 | Microchip Technology | DIODE ZENER 12.8V 400MW DO7 | Bulk | Through Hole | - | -55°C ~ 100°C | |
![]() 1N4904A/TR $18.09 | Microchip Technology | DIODE ZENER 12.8V 400MW DO7 | Tape & Reel (TR) | Through Hole | - | -55°C ~ 100°C | |
![]() 1N4905 $38.00 | Microchip Technology | DIODE ZENER 12.8V 400MW DO7 | Bulk | Through Hole | - | -25°C ~ 100°C | |
![]() 1N4905/TR $38.15 | Microchip Technology | DIODE ZENER 12.8V 400MW DO7 | Tape & Reel (TR) | Through Hole | - | -25°C ~ 100°C |

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