Voltage References

Voltage references are electronic devices that provide a fixed voltage. They provide a constant voltage regardless of external factors like the load on the device or fluctuations in the power supply.


Voltage references have different characteristics depending on their purpose. Voltage references used in laboratory applications are designed to have extremely high precision and accuracy, whereas those used as regulators for computer power supplies are much cheaper but less precise. 


Types of voltage references

There are many different kinds of voltage references, generally categorised by type, tolerance, rated voltage, reference voltage and rated current. The most common tolerances are ±2%, ±1% and ±0.5%, but voltage references are available even up to ±40%. 


What are voltage references used for? 

Voltage references can be used for a variety of different precision measurement and control systems such as power supplies in personal computers and analog-to-digital converters. They are also used in scientific applications and in medical equipment where voltage variations need to be tested regularly. 


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Description Price Nominal Voltage Package Type Reference Type Initial Accuracy Mounting Type Topology Maximum Output Current Maximum Input Voltage Minimum Output Voltage Maximum Output Voltage Pin Count Line Regulation Load Regulation Dimensions
RS Stock No. 661-9350
Mfr. Part No.LM4040D25IDBZR
PHP39.698
Each (In a Pack of 5)
units
2.5V SOT-23 Fixed ±1.0 % Surface Mount Shunt 15mA - - - 3 - 8 mV 2.92 x 1.3 x 1mm
RS Stock No. 412-642
Mfr. Part No.AD587JRZ
PHP402.68
Each
units
10V SOIC Fixed ±0.1 % Surface Mount Series 10mA 36 V 9.99 V 10.01 V 8 100 μV/V 100 μV/mA 5 x 4 x 1.5mm
RS Stock No. 919-9036
Mfr. Part No.LT1029CZPBF
PHP240.641
Each (In a Tube of 100)
units
5V TO-92 Fixed ±0.2 % Through Hole Shunt 10mA - 4.95 V 5.05 V 3 - - 4.572 x 3.556 x 4.572mm
RS Stock No. 912-8740
Mfr. Part No.AD586LRZ
PHP532.88
Each (In a Tube of 98)
units
5V SOIC Fixed ±0.05 % Surface Mount Series 10mA 36 V 4.998 V 5.003 V 8 100 μV/V 400 μV/mA 5 x 4 x 1.5mm
RS Stock No. 121-8848
Mfr. Part No.LM431BIM3/NOPB
PHP14.07
Each (On a Reel of 1000)
units
2.5 - 36V SOT-23 Adjustable ±1.0 % Surface Mount Shunt 100mA 37 V 2.5 V 36 V 3 - - 2.92 x 1.3 x 0.93mm
RS Stock No. 526-981
Mfr. Part No.TL431AIDBZT
PHP29.918
Each (In a Pack of 25)
units
2.5 - 36V SOT-23 Adjustable ±1.0 % Surface Mount Shunt 100mA 37 V 2.5 V 36 V 3 - - 2.92 x 1.3 x 1mm
RS Stock No. 124-2435
Mfr. Part No.TL431BQDBZR,215
BrandNexperia
PHP4.845
Each (On a Reel of 3000)
units
2.5 - 36V SOT-23 Adjustable 0.5% Surface Mount Shunt 100mA 37 V 2.495 V 36 V 3 - - 3 x 1.4 x 1mm
RS Stock No. 162-5897
Mfr. Part No.TL431AIDBZR
PHP5.78
Each (On a Reel of 3000)
units
2.5 - 36V SOT-23 Adjustable ±1.0 % Surface Mount Shunt 100mA 37 V 2.5 V 36 V 3 - - 2.92 x 1.3 x 1mm
RS Stock No. 427-183
Mfr. Part No.AD586LRZ
PHP648.90
Each
units
5V SOIC Fixed ±0.05 % Surface Mount Series 10mA 36 V 4.998 V 5.003 V 8 100 μV/V 400 μV/mA 5 x 4 x 1.5mm
RS Stock No. 714-7822
Mfr. Part No.TL431AIZT
PHP14.23
Each (In a Pack of 20)
units
2.5 - 36V TO-92 Adjustable ±1.0 % Through Hole Shunt 100mA 37 V 2.5 V 36 V 3 - - 4.7 x 3.7 x 4.4mm
RS Stock No. 814-3758
Mfr. Part No.REF3330AIDBZT
PHP138.768
Each (In a Pack of 5)
units
3V SOT-23 Fixed ±0.15 % Surface Mount Series 30mA 5.5 V - - 3 30 ppm/V 20 ppm/V 3.04 x 1.4 x 1.02mm
RS Stock No. 661-9534
Mfr. Part No.TL431BIDBZT
PHP45.68
Each (In a Pack of 5)
units
2.5 - 36V SOT-23 Adjustable ±0.5 % Surface Mount Shunt 100mA 37 V 2.5 V 36 V 3 - - 2.92 x 1.3 x 1mm
RS Stock No. 709-5406
Mfr. Part No.AD586BRZ
PHP827.40
Each
units
5V SOIC Fixed ±0.05 % Surface Mount Series 10mA 36 V 4.998 V 5.003 V 8 100 μV/V 400 μV/mA 5 x 4 x 1.5mm
RS Stock No. 922-2482
Mfr. Part No.LM4040D25IDBZT
PHP40.11
Each (On a Reel of 250)
units
2.5V SOT-23 Fixed ±1.0 % Surface Mount Shunt 15mA - - - 3 - 8 mV 2.92 x 1.3 x 1mm
RS Stock No. 526-313
Mfr. Part No.TL431ACDR
PHP12.686
Each (In a Pack of 25)
units
2.5 - 36V SOIC Adjustable ±1.0 % Surface Mount Shunt 100mA 37 V 2.5 V 36 V 8 - - 4.9 x 3.91 x 1.58mm
RS Stock No. 162-4725
Mfr. Part No.LM385Z/NOPB
PHP17.155
Each (In a Box of 1800)
units
1.24 - 5.3V TO-92 Adjustable ±2.0 % Through Hole Shunt 20mA - 1.24 V 5.3 V 3 - 15 mV 5.2 x 4.19 x 5.2mm
RS Stock No. 912-7220
Mfr. Part No.AD587JRZ
PHP332.391
Each (In a Tube of 98)
units
10V SOIC Fixed ±0.1 % Surface Mount Series 10mA 36 V 9.99 V 10.01 V 8 100 μV/V 100 μV/mA 5 x 4 x 1.5mm
RS Stock No. 121-9397
Mfr. Part No.REF3330AIDBZT
PHP76.03
Each (On a Reel of 250)
units
3V SOT-23 Fixed ±0.15 % Surface Mount Series 30mA 5.5 V - - 3 30 ppm/V 20 ppm/V 3.04 x 1.4 x 1.02mm
RS Stock No. 121-8695
Mfr. Part No.LM336Z-5.0/NOPB
PHP15.44
Each (In a Box of 1800)
units
5V TO-92 Fixed ±1.0 % Through Hole Shunt 10mA - 4.8 V 5.2 V 3 - 20 mV 5.2 x 4.19 x 5.2mm
RS Stock No. 162-5902
Mfr. Part No.TL431BIDBZT
PHP24.47
Each (On a Reel of 250)
units
2.5 - 36V SOT-23 Adjustable ±0.5 % Surface Mount Shunt 100mA 37 V 2.5 V 36 V 3 - - 2.92 x 1.3 x 1mm
Related Products
Precision Fixed and Adjustable Voltage Reference ICs utilsing ...
Description:
Precision Fixed and Adjustable Voltage Reference ICs utilsing series, shunt or series/shunt topologies and available in both through-hole and surface mount packages. Voltage References are available with initial accuracies of ±0.02 to ±2%.
Precison Fixed and Adjustable Voltage Reference ICs utilsing ...
Description:
Precison Fixed and Adjustable Voltage Reference ICs utilsing series, shunt or series/shunt topologies and available in both through-hole and surface mount packages. Voltage References are available with initial accuracies of ±0.02 to ±2%.
Precision Fixed and Adjustable Voltage Reference ICs utilsing ...
Description:
Precision Fixed and Adjustable Voltage Reference ICs utilsing series, shunt or series/shunt topologies and available in both through-hole and surface mount packages. Voltage References are available with initial accuracies of ±0.02 to ±2%.