| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1N4728ATR | FAIRCHILD SEMICONDUCTOR CORP | 3.3V | ±5% | 1W | 10 Ohm | 100µA @ 1V | - | -65°C ~ 200°C | Through Hole | DO-204AL, DO-41, Axial | |
| MMBZ5221B | FAIRCHILD SEMICONDUCTOR CORP | 2.4V | ±5% | 350mW | 30 Ohm | 100µA @ 1V | 900mV @ 10mA | -55°C ~ 150°C | Surface Mount | TO-236-3, SC-59, SOT-23-3 | |
| 1N5221B | FAIRCHILD SEMICONDUCTOR CORP | 2.4V | ±5% | 500mW | 30 Ohm | 100µA @ 1V | 1.2V @ 200mA | -65°C ~ 200°C | Through Hole | DO-204AH, DO-35, Axial | |
| 1N5222B | FAIRCHILD SEMICONDUCTOR CORP | 2.5V | ±5% | 500mW | 30 Ohm | 100µA @ 1V | 1.2V @ 200mA | -65°C ~ 200°C | Through Hole | DO-204AH, DO-35, Axial | |
| 1N4729A | FAIRCHILD SEMICONDUCTOR CORP | 3.6V | ±5% | 1W | 10 Ohm | 100µA @ 1V | - | -65°C ~ 200°C | Through Hole | DO-204AL, DO-41, Axial | |
| 1N4728A | FAIRCHILD SEMICONDUCTOR CORP | 3.3V | ±5% | 1W | 10 Ohm | 100µA @ 1V | - | -65°C ~ 200°C | Through Hole | DO-204AL, DO-41, Axial | |
| 1N4728A_T50A | FAIRCHILD SEMICONDUCTOR CORP | 3.3V | ±5% | 1W | 10 Ohm | 100µA @ 1V | - | -65°C ~ 200°C | Through Hole | DO-204AL, DO-41, Axial | |
| 1N4728A_T50R | FAIRCHILD SEMICONDUCTOR CORP | 3.3V | ±5% | 1W | 10 Ohm | 100µA @ 1V | - | -65°C ~ 200°C | Through Hole | DO-204AL, DO-41, Axial | |
| 1N4729A_T50A | FAIRCHILD SEMICONDUCTOR CORP | 3.6V | ±5% | 1W | 10 Ohm | 100µA @ 1V | - | -65°C ~ 200°C | Through Hole | DO-204AL, DO-41, Axial | |
| 1N4729A_T50R | FAIRCHILD SEMICONDUCTOR CORP | 3.6V | ±5% | 1W | 10 Ohm | 100µA @ 1V | - | -65°C ~ 200°C | Through Hole | DO-204AL, DO-41, Axial |
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