| Fairchild Part | Orderable | Industry Part | Manufacturer | Type | Family | Description |
| KA431 | KA431DTF Buy | LM431BIMX Buy | Fairchild | Close | Voltage Reference and Shunt | Adjustable/2.5V, 2% Tolerance Shunt Regulator |
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| KA431 | KA431DTF Buy | LM431BIMX/NOPB Buy | National Semiconductor | Close | Voltage Reference and Shunt | Adjustable/2.5V, 2% Tolerance Shunt Regulator |
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| KA431 | KA431DTF Buy | LM431BIMXNOPB Buy | National Semiconductor | Close | Voltage Reference and Shunt | Adjustable/2.5V, 2% Tolerance Shunt Regulator |
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| KA431A | KA431ADTF Buy | LM431BIMX Buy | Fairchild | Close | Voltage Reference and Shunt | Adjustable/2.5V, 1% Tolerance Shunt Regulator |
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| KA431A | KA431ADTF Buy | LM431BIMX/NOPB Buy | National Semiconductor | Close | Voltage Reference and Shunt | Adjustable/2.5V, 1% Tolerance Shunt Regulator |
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| KA431A | KA431ADTF Buy | LM431BIMXNOPB Buy | National Semiconductor | Close | Voltage Reference and Shunt | Adjustable/2.5V, 1% Tolerance Shunt Regulator |
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| LM431A | LM431AIMX Buy | LM431BIMX Buy | Fairchild | Close | Voltage Reference and Shunt | Adjustable/2.5V, 2% Tolerance Shunt Regulator |
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| LM431A | LM431ACMX Buy | LM431BIMX/NOPB Buy | National Semiconductor | Close | Voltage Reference and Shunt | Adjustable/2.5V, 2% Tolerance Shunt Regulator |
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| LM431A | LM431ACMX Buy | LM431BIMXNOPB Buy | National Semiconductor | Close | Voltage Reference and Shunt | Adjustable/2.5V, 2% Tolerance Shunt Regulator |
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| LM431B | LM431BCMX Buy | LM431BIMX Buy | Fairchild | Close | Voltage Reference and Shunt | Adjustable/2.5V, 1% Tolerance Shunt Regulator |
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| LM431B | LM431BCMX Buy | LM431BIMX/NOPB Buy | National Semiconductor | Close | Voltage Reference and Shunt | Adjustable/2.5V, 1% Tolerance Shunt Regulator |
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| LM431B | LM431BCMX Buy | LM431BIMXNOPB Buy | National Semiconductor | Close | Voltage Reference and Shunt | Adjustable/2.5V, 1% Tolerance Shunt Regulator |
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| LM431C | LM431CCMX Buy | LM431BIMX Buy | Fairchild | Close | Voltage Reference and Shunt | Adjustable/2.5V, 0.5% Tolerance Shunt Regulator |
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| LM431C | LM431CIMX Buy | LM431BIMX/NOPB Buy | National Semiconductor | Close | Voltage Reference and Shunt | Adjustable/2.5V, 0.5% Tolerance Shunt Regulator |
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| LM431C | LM431CIMX Buy | LM431BIMXNOPB Buy | National Semiconductor | Close | Voltage Reference and Shunt | Adjustable/2.5V, 0.5% Tolerance Shunt Regulator |
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| TL431A | TL431ACD Buy | LM431BIMX Buy | Fairchild | Close | Voltage Reference and Shunt | Adjustable/2.5V, 1% Tolerance Shunt Regulator |
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| TL431A | TL431ACD Buy | LM431BIMX/NOPB Buy | National Semiconductor | Close | Voltage Reference and Shunt | Adjustable/2.5V, 1% Tolerance Shunt Regulator |
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| TL431A | TL431ACD Buy | LM431BIMXNOPB Buy | National Semiconductor | Close | Voltage Reference and Shunt | Adjustable/2.5V, 1% Tolerance Shunt Regulator |
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