| Photo | Mfr. Part # | Availability | Quantity | Datasheet | Package/Case | Series | Packaging | Product Status | Reference Type | Output Type | Voltage - Output (Min/Fixed) | Voltage - Output (Max) | Current - Output | Tolerance | Temperature Coefficient | Noise - 0.1Hz to 10Hz | Noise - 10Hz to 10kHz | Voltage - Input | Current - Supply | Current - Cathode | Operating Temperature | Grade | Qualification | Mounting Type | Supplier Device Package | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
                 
                 
                
                 | 
				
                    KA33VTADIODE ZENER 2 TERM VOLT REF Fairchild Semiconductor  |  
                1,198,000 | 
                
                     | 
                  
                  
                    
                       | 	
                
                TO-226-2, TO-92-2 (TO-226AC) | - | Bulk | Active | - | - | - | - | - | ±6% | - | - | - | - | - | - | -20°C ~ 75°C | - | - | Through Hole | TO-92-2 | 
                 
                 
                
                 | 
				
                    KA33VVOLTAGE REFERENCE Fairchild Semiconductor  |  
                30,000 | 
                
                     | 
                  
                  
                    
                       | 	
                
                TO-226-2, TO-92-2 (TO-226AC) | - | Bulk | Active | Shunt | Adjustable | 31V | 35 V | 10 mA | ±6% | - | - | - | - | - | - | -20°C ~ 75°C (TA) | - | - | Through Hole | TO-92-2 | 
                 
                 
                
                 | 
				
                    LM431SACMLXIC VREF SHUNT ADJ 2% SOT89-3 Fairchild Semiconductor  |  
                320,780 | 
                
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                       | 	
                
                TO-243AA | - | Bulk | Obsolete | Shunt | Adjustable | 2.5V | 36 V | 100 mA | ±2% | 50ppm/°C Typical | - | - | - | - | 1 mA | -25°C ~ 85°C (TA) | - | - | Surface Mount | SOT-89-3 | 
                 
                 
                
                 | 
				
                    RC0431ASTVOLTAGE REFERENCE, BIPOLAR Fairchild Semiconductor  |  
                700,278 | 
                
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                       | 	
                
                SC-74A, SOT-753 | - | Bulk | Active | Shunt | Adjustable | 1.24V | 12 V | 15 mA | ±1% | - | - | - | - | - | 100 µA | 0°C ~ 70°C (TA) | - | - | Surface Mount | SOT-23-5 | 
                 
                 
                
                 | 
				
                    LM431SACM32XIC VREF SHUNT ADJ 2% SOT23-3 Fairchild Semiconductor  |  
                167,134 | 
                
                     | 
                  
                  
                    
                       | 	
                
                TO-236-3, SC-59, SOT-23-3 | - | Bulk | Active | Shunt | Adjustable | 2.5V | 36 V | 100 mA | ±2% | 50ppm/°C Typical | - | - | - | - | 1 mA | -25°C ~ 85°C (TA) | - | - | Surface Mount | SOT-23-3 | 
                 
                 
                
                 | 
				
                    LM431CCZXAIC VREF SHUNT ADJ 0.5% TO92-3 Fairchild Semiconductor  |  
                10,382 | 
                
                     | 
                  
                  
                    
                       | 	
                
                TO-226-3, TO-92-3 (TO-226AA) Formed Leads | - | Bulk | Obsolete | Shunt | Adjustable | 2.495V | 36 V | 100 mA | ±0.5% | 50ppm/°C Typical | - | - | - | - | 1 mA | -25°C ~ 85°C (TA) | - | - | Through Hole | TO-92-3 | 
                 
                 
                
                 | 
				
                    LM431SACMFXADJUSTABLE/2.5V, 2% TOLERANCE SH Fairchild Semiconductor  |  
                7,511,648 | 
                
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                       | 	
                
                SOT-23-3 Flat Leads | - | Bulk | Active | Shunt | Adjustable | 2.5V | 36 V | 100 mA | ±2% | 50ppm/°C Typical | - | - | - | - | 1 mA | -25°C ~ 85°C (TA) | - | - | Surface Mount | SOT-23F-3 | 
                 
                 
                
                 | 
				
                    RC0431AMTVOLTAGE REFERENCE Fairchild Semiconductor  |  
                66,405 | 
                
                     | 
                  
                  
                    
                       | 	
                
                SC-74A, SOT-753 | - | Bulk | Active | Shunt | Adjustable | 1.24V | 12 V | 15 mA | ±1% | - | - | - | - | - | 100 µA | 0°C ~ 70°C (TA) | - | - | Surface Mount | SOT-23-5 | 
                 
                 
                
                 | 
				
                    KS431SAMFTFKS431SAMFTF Fairchild Semiconductor  |  
                438,000 | 
                
                     | 
                  
                  
                     -  | 	
                
                - | * | Bulk | Active | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 
                 
                 
                
                 | 
				
                    KA431DIC VREF SHUNT ADJ 2% 8SOIC Fairchild Semiconductor  |  
                48,600 | 
                
                     | 
                  
                  
                    
                       | 	
                
                8-SOIC (0.154", 3.90mm Width) | - | Tube | Obsolete | Shunt | Adjustable | 2.5V | 36 V | 100 mA | ±2% | 50ppm/°C Typical | - | - | - | - | 1 mA | -25°C ~ 85°C (TA) | - | - | Surface Mount | 8-SOIC |