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| Part Number | 1N5991C | 1N5992C | 1N5994C | 1N5995C | 1N5996C | 1N5997C | 1N5998C | 1N5999C | 1N5991D | 1N5993C | 1N5990C | 1N5991A | 1N5991B |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Fairchild Semiconductor |
| Product Status | Active | Active | Active | Active | Active | Active | Active | Active | Active | Active | Active | Active | Obsolete |
| Voltage - Zener (Nom) (Vz) | 4.3 V | 4.7 V | 5.6 V | 6.2 V | 6.8 V | 7.5 V | 8.2 V | 9.1 V | 4.3 V | 5.1 V | 3.9 V | 4.3 V | 4.3 V |
| Tolerance | ±2% | ±2% | ±2% | ±2% | ±2% | ±2% | ±2% | ±2% | ±1% | ±2% | ±2% | ±10% | ±5% |
| Power - Max | 500 mW | 500 mW | 500 mW | 500 mW | 500 mW | 500 mW | 500 mW | 500 mW | 500 mW | 500 mW | 500 mW | 500 mW | 500 mW |
| Impedance (Max) (Zzt) | 88 Ohms | 70 Ohms | 25 Ohms | 10 Ohms | 8 Ohms | 7 Ohms | 7 Ohms | 10 Ohms | 88 Ohms | 50 Ohms | 90 Ohms | 90 Ohms | 88 Ohms |
| Current - Reverse Leakage @ Vr | 5 µA @ 1 V | 3 µA @ 1.5 V | 2 µA @ 3 V | 1 µA @ 4 V | 1 µA @ 5.2 V | 500 nA @ 6 V | 500 nA @ 6.5 V | 100 nA @ 7 V | 5 µA @ 1 V | 2 µA @ 2 V | 10 µA @ 1 V | 15 µA @ 1 V | 5 µA @ 1 V |
| Voltage - Forward (Vf) (Max) @ If | 1.1 V @ 200 mA | 1.1 V @ 200 mA | 1.1 V @ 200 mA | 1.1 V @ 200 mA | 1.1 V @ 200 mA | 1.1 V @ 200 mA | 1.1 V @ 200 mA | 1.1 V @ 200 mA | 1.1 V @ 200 mA | 1.1 V @ 200 mA | 1.1 V @ 200 mA | 1.1 V @ 200 mA | 1.2 V @ 200 mA |
| Operating Temperature | -65°C ~ 175°C | -65°C ~ 175°C | -65°C ~ 175°C | -65°C ~ 175°C | -65°C ~ 175°C | -65°C ~ 175°C | -65°C ~ 175°C | -65°C ~ 175°C | -65°C ~ 175°C | -65°C ~ 175°C | -65°C ~ 175°C | -65°C ~ 175°C | -65°C ~ 200°C |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole |
| Package / Case | DO-204AH, DO-35, Axial | DO-204AH, DO-35, Axial | DO-204AH, DO-35, Axial | DO-204AH, DO-35, Axial | DO-204AH, DO-35, Axial | DO-204AH, DO-35, Axial | DO-204AH, DO-35, Axial | DO-204AH, DO-35, Axial | DO-204AH, DO-35, Axial | DO-204AH, DO-35, Axial | DO-204AH, DO-35, Axial | DO-204AH, DO-35, Axial | DO-204AH, DO-35, Axial |
| Supplier Device Package | DO-35 | DO-35 | DO-35 | DO-35 | DO-35 | DO-35 | DO-35 | DO-35 | DO-35 | DO-35 | DO-35 | DO-35 | DO-35 (DO-204AH) |
