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| Part Number | SG137K | SG137T | SG117K | 
|---|---|---|---|
| Manufacturer | Microsemi Corporation | Microchip Technology | Microchip Technology | 
| Product Status | Obsolete | Discontinued at Digi-Key | Discontinued at Digi-Key | 
| Output Configuration | Negative | Negative | Positive | 
| Output Type | Adjustable | Adjustable | Adjustable | 
| Number of Regulators | 1 | 1 | 1 | 
| Voltage - Input (Max) | -36V | -36V | 37V | 
| Voltage - Output (Min/Fixed) | -1.25V | -1.25V | 1.25V | 
| Voltage - Output (Max) | -36V | -36V | 37V | 
| Voltage Dropout (Max) | - | - | - | 
| Current - Output | 1.5A | 500mA | 1.5A | 
| Current - Quiescent (Iq) | - | - | - | 
| Current - Supply (Max) | - | - | - | 
| PSRR | 60dB ~ 77dB (120Hz) | 60dB ~ 77dB (120Hz) | 65dB ~ 80dB (120Hz) | 
| Control Features | - | - | - | 
| Protection Features | Over Current, Over Temperature, Over Voltage | Over Current, Over Temperature, Over Voltage | Over Current | 
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | 
| Mounting Type | Through Hole | Through Hole | Through Hole | 
| Package / Case | TO-204AA, TO-3 | TO-205AD, TO-39-3 Metal Can | TO-204AA, TO-3 | 
| Supplier Device Package | TO-3 | TO-99 | TO-3 |