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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 |
|---|---|---|---|---|---|---|---|
![]() 1N5221BDO35 $1.73 | Microsemi Corporation | DIODE ZENER 2.4V 500MW DO204AH | Bag | Through Hole | - | -65°C ~ 175°C | |
![]() 1N5221BDO35E3 $1.16 | Microsemi Corporation | DIODE ZENER 2.4V 500MW DO204AH | Tape & Reel (TR),Cut Tape (CT) | Through Hole | - | -65°C ~ 175°C | |
![]() 1N5221BE3 $1.85 | Microchip Technology | DIODE ZENER 2.4V 500MW DO204AH | Bag | Through Hole | - | -65°C ~ 175°C | |
![]() 1N5221BE3/TR $2.01 | Microchip Technology | DIODE ZENER 2.4V 500MW DO204AH | Tape & Reel (TR) | Through Hole | - | -65°C ~ 175°C | |
![]() 1N5221BTA $0.02 | onsemi | DIODE ZENER 2.4V 500MW DO35 | Bulk | Through Hole | - | -65°C ~ 200°C | |
![]() 1N5221BUR-1 $2.47 | Microchip Technology | DIODE ZENER 2.4V 500MW DO213AA | Bulk | Surface Mount | - | -65°C ~ 175°C (TJ) | |
![]() 1N5221BUR-1/TR $2.80 | Microchip Technology | DIODE ZENER 2.4V 500MW DO213AA | Tape & Reel (TR),Cut Tape (CT) | Surface Mount | - | -65°C ~ 175°C (TJ) | |
![]() 1N5221C-TAP $0.03 | Vishay General Semiconductor - Diodes Division | DIODE ZENER 2.4V 500MW DO204AH | Tape & Box (TB) | Through Hole | Superectifier® | 175°C |

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