| Part Numbers | Manufacturer Name | Datasheet | Voltage - Zener (Vz) | Tolerance | Power - Max | Impedance (Max) (Zzt) | Reverse Leakage Current@ Vr | Forward Voltage (Vf) (Max) @ If | Operating Temperature | Mounting Type | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1N4749ATR | FAIRCHILD SEMICONDUCTOR CORP | 24V | ±5% | 1W | 25 Ohm | 5µA @ 18.2V | - | -65°C ~ 200°C | Through Hole | DO-204AL, DO-41, Axial | |
| KA33VBU | FAIRCHILD SEMICONDUCTOR CORP | 33V | ±6% | 200mW | 25 Ohm | - | - | -20°C ~ 75°C | Through Hole | TO-226-2, TO-92-2 (TO-226AC) | |
| BZX79C12_T50A | FAIRCHILD SEMICONDUCTOR CORP | 12V | ±5% | 500mW | 25 Ohm | 100nA @ 8V | 1.5V @ 100mA | -65°C ~ 200°C | Through Hole | DO-204AH, DO-35, Axial | |
| KA33VTA | FAIRCHILD SEMICONDUCTOR CORP | 33V | ±6% | 200mW | 25 Ohm | - | - | -20°C ~ 75°C | Through Hole | TO-226-2, TO-92-2 (TO-226AC) Formed Leads | |
| 1N5250B | FAIRCHILD SEMICONDUCTOR CORP | 20V | ±5% | 500mW | 25 Ohm | 100nA @ 15V | 1.2V @ 200mA | -65°C ~ 200°C | Through Hole | DO-204AH, DO-35, Axial | |
| BZX79C12 | FAIRCHILD SEMICONDUCTOR CORP | 12V | ±5% | 500mW | 25 Ohm | 100nA @ 8V | 1.5V @ 100mA | -65°C ~ 200°C | Through Hole | DO-204AH, DO-35, Axial | |
| 1N4749A | FAIRCHILD SEMICONDUCTOR CORP | 24V | ±5% | 1W | 25 Ohm | 5µA @ 18.2V | - | -65°C ~ 200°C | Through Hole | DO-204AL, DO-41, Axial | |
| 1N5250BTR | FAIRCHILD SEMICONDUCTOR CORP | 20V | ±5% | 500mW | 25 Ohm | 100nA @ 15V | 1.2V @ 200mA | -65°C ~ 200°C | Through Hole | DO-204AH, DO-35, Axial | |
| BZX85C24_T50R | FAIRCHILD SEMICONDUCTOR CORP | 24V | ±6% | 1W | 25 Ohm | 500nA @ 17V | 1.2V @ 200mA | -65°C ~ 200°C | Through Hole | DO-204AL, DO-41, Axial | |
| 1N4749A_T50R | FAIRCHILD SEMICONDUCTOR CORP | 24V | ±5% | 1W | 25 Ohm | 5µA @ 18.2V | - | -65°C ~ 200°C | Through Hole | DO-204AL, DO-41, Axial |
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