| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1N4957 | MICROSEMI COMMERCIAL BUSINESS UNIT | 9.1V | ±5% | 5W | 2 Ohm | 25µA @ 6.9V | 1.5V @ 1A | -65°C ~ 175°C | Through Hole | E, Axial | |
| 1N4957US | MICROSEMI COMMERCIAL BUSINESS UNIT | 9.1V | ±5% | 5W | 2 Ohm | 25µA @ 6.9V | 1.5V @ 1A | -65°C ~ 175°C | Surface Mount | E-MELF | |
| 1N2973A | MICROSEMI COMMERCIAL BUSINESS UNIT | 9.1V | ±5% | 10W | 2 Ohm | 25µA @ 6.9V | 1.5V @ 2A | -65°C ~ 175°C | Chassis, Stud Mount | DO-203AA, DO-4, Stud | |
| 1N2973B | MICROSEMI COMMERCIAL BUSINESS UNIT | 9.1V | ±5% | 10W | 2 Ohm | 25µA @ 6.9V | 1.5V @ 2A | -65°C ~ 175°C | Chassis, Stud Mount | DO-203AA, DO-4, Stud | |
| 1N2973RB | MICROSEMI COMMERCIAL BUSINESS UNIT | 9.1V | ±5% | 10W | 2 Ohm | 25µA @ 6.9V | 1.5V @ 2A | -65°C ~ 175°C | Chassis, Stud Mount | DO-203AA, DO-4, Stud | |
| JAN1N4957 | MICROSEMI CORP | 9.1V | ±5% | 5W | 2 Ohm | 25µA @ 6.9V | 1.5V @ 1A | -65°C ~ 175°C | Through Hole | E, Axial | |
| JAN1N4957US | MICROSEMI CORP | 9.1V | ±5% | 5W | 2 Ohm | 25µA @ 6.9V | 1.5V @ 1A | -65°C ~ 175°C | Surface Mount | E-MELF | |
| JANTX1N4957 | MICROSEMI CORP | 9.1V | ±5% | 5W | 2 Ohm | 25µA @ 6.9V | 1.5V @ 1A | -65°C ~ 175°C | Through Hole | E, Axial | |
| JANTX1N4957US | MICROSEMI CORP | 9.1V | ±5% | 5W | 2 Ohm | 25µA @ 6.9V | 1.5V @ 1A | -65°C ~ 175°C | Surface Mount | E-MELF | |
| JANTXV1N4957 | MICROSEMI CORP | 9.1V | ±5% | 5W | 2 Ohm | 25µA @ 6.9V | 1.5V @ 1A | -65°C ~ 175°C | Through Hole | E, Axial |
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