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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 |
|---|---|---|---|---|---|---|---|
![]() 1N4757A BK PBFREE $0.05 | Central Semiconductor Corp | DIODE ZENER 51V 1W DO41 | Bulk | Through Hole | - | -65°C ~ 200°C (TJ) | |
![]() 1N4757A BK TIN/LEAD $0.06 | Central Semiconductor Corp | 51V 1W TH DIODE-ZENER SINGLE: ST | Box | Through Hole | - | -65°C ~ 150°C (TJ) | |
| Taiwan Semiconductor Corporation | DIODE ZENER 51V 1W DO204AL | Tape & Reel (TR) | Through Hole | - | -55°C ~ 150°C (TJ) | ||
![]() 1N4757A TR PBFREE $0.33 | Central Semiconductor Corp | DIODE ZENER 51V 1W DO41 | Tape & Reel (TR),Cut Tape (CT) | Through Hole | - | -65°C ~ 200°C | |
| Vishay General Semiconductor - Diodes Division | DIODE ZENER 51V 1.3W DO41 | Tape & Reel (TR) | Through Hole | - | 175°C | ||
![]() 1N4757A-TAP $0.19 | Vishay General Semiconductor - Diodes Division | DIODE ZENER 51V 1.31W DO204AL | Cut Tape (CT),Tape & Box (TB) | Through Hole | - | 175°C (TJ) | |
![]() 1N4757A-TP $0.29 | MCC (Micro Commercial Components) | DIODE ZENER 51V 1W DO41G | Tape & Reel (TR),Cut Tape (CT) | Through Hole | - | -65°C ~ 200°C | |
![]() 1N4757A-TR $0.09 | Vishay General Semiconductor - Diodes Division | DIODE ZENER 51V 1.3W DO204AL | Tape & Reel (TR),Cut Tape (CT) | Through Hole | - | 175°C (TJ) |

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