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. 522-8382
Mfr. Part No.REF02CSZ
PHP149.78
Each
units
5V SOIC Fixed ±1.0 % Surface Mount Series 8mA 40 V 4.95 V 5.05 V 8 150 ppm/V 150 ppm/mA 5 x 4 x 1.5mm
RS Stock No. 106-7055
Mfr. Part No.REF02CSZ
PHP127.319
Each (In a Tube of 98)
units
5V SOIC Fixed ±1.0 % Surface Mount Series 8mA 40 V 4.95 V 5.05 V 8 150 ppm/V 150 ppm/mA 5 x 4 x 1.5mm
RS Stock No. 661-9603
Mfr. Part No.TLV431AIDBZR
PHP43.668
Each (In a Pack of 5)
units
1.24 - 6V SOT-23 Adjustable ±1.0 % Surface Mount Shunt 15mA - 1.24 V 6 V 3 - - 2.92 x 1.3 x 1mm
RS Stock No. 922-2527
Mfr. Part No.TLV431AIDBZR
PHP14.54
Each (On a Reel of 3000)
units
1.24 - 6V SOT-23 Adjustable ±1.0 % Surface Mount Shunt 15mA - 1.24 V 6 V 3 - - 2.92 x 1.3 x 1mm
RS Stock No. 230-804
Mfr. Part No.AD586KRZ
PHP489.81
Each
units
5V SOIC Fixed ±0.1 % Surface Mount Series 10mA 36 V 4.995 V 5.005 V 8 100 μV/V 400 μV/mA 5 x 4 x 1.5mm
RS Stock No. 100-0167
Mfr. Part No.ISL21010DFH310Z-T7A
BrandIntersil
PHP124.578
Each (In a Pack of 5)
units
1.024V SOT-23 Fixed ±0.2 % Surface Mount Series 25mA 5.5 V - 1.024 V 3 100 μV/V 110 μV/mA 2.92 x 1.3 x 0.95mm
RS Stock No. 162-5918
Mfr. Part No.TLE2426IDR
PHP111.726
Each (On a Reel of 2500)
units
- SOIC Adjustable - Surface Mount Series 20mA 40 V 1.98 V 20.2 V 8 - - 4.9 x 3.91 x 1.58mm
RS Stock No. 620-0161
Mfr. Part No.TLE2426CD
PHP114.284
Each (In a Pack of 5)
units
- SOIC Adjustable - Surface Mount Series 20mA 40 V 1.98 V 20.2 V 8 - - 4.9 x 3.91 x 1.58mm
RS Stock No. 912-7078
Mfr. Part No.AD586KRZ
PHP418.17
Each (In a Tube of 98)
units
5V SOIC Fixed ±0.1 % Surface Mount Series 10mA 36 V 4.995 V 5.005 V 8 100 μV/V 400 μV/mA 5 x 4 x 1.5mm
RS Stock No. 170-8085
Mfr. Part No.ISL21010DFH310Z-T7A
BrandIntersil
PHP88.893
Each (On a Reel of 250)
units
1.024V SOT-23 Fixed ±0.2 % Surface Mount Series 25mA 5.5 V - 1.024 V 3 100 μV/V 110 μV/mA 2.92 x 1.3 x 0.95mm
RS Stock No. 661-9580
Mfr. Part No.TLE2426IDR
PHP98.432
Each (In a Pack of 5)
units
- SOIC Adjustable - Surface Mount Series 20mA 40 V 1.98 V 20.2 V 8 - - 4.9 x 3.91 x 1.58mm
RS Stock No. 179-1665
Mfr. Part No.TLE2426CD
PHP95.936
Each (In a Tube of 75)
units
- SOIC Adjustable - Surface Mount Series 20mA 40 V 1.98 V 20.2 V 8 - - 4.9 x 3.91 x 1.58mm
RS Stock No. 462-1904
Mfr. Part No.TLE2426ID
PHP125.018
Each (In a Pack of 5)
units
- SOIC Adjustable - Surface Mount Series 20mA 40 V 1.98 V 20.2 V 8 - - 4.9 x 3.91 x 1.58mm
RS Stock No. 661-9827
Mfr. Part No.TL431CLPR
PHP13.867
Each (In a Pack of 10)
units
2.5 - 36V TO-92 Adjustable ±2.0 % Through Hole Shunt 100mA 37 V 2.5 V 36 V 3 - - 4.83 x 3.43 x 3.68mm
RS Stock No. 534-2860
Mfr. Part No.LM385Z-1.2/NOPB
PHP31.55
Each
units
1.235V TO-92 Fixed ±2.0 % Through Hole Shunt 20mA - - - 3 - 20 mV 5.2 x 4.19 x 5.2mm
RS Stock No. 284-220
Mfr. Part No.TLE2426CLP
PHP139.65
Each
units
- TO-92 Adjustable - Through Hole Series 20mA 40 V 1.98 V 20.2 V 3 - - 4.83 x 3.43 x 3.68mm
RS Stock No. 761-5905
Mfr. Part No.LM4040DIZ-4.1/NOPB
PHP30.732
Each (In a Pack of 5)
units
4.096V TO-92 Fixed ±1.0 % Through Hole Shunt 15mA - - 4.1 V 3 - - 5.2 x 4.19 x 5.2mm
RS Stock No. 162-4726
Mfr. Part No.LM385Z-1.2/NOPB
PHP14.214
Each (In a Box of 1800)
units
1.235V TO-92 Fixed ±2.0 % Through Hole Shunt 20mA - - - 3 - 20 mV 5.2 x 4.19 x 5.2mm
RS Stock No. 428-436
Mfr. Part No.TL431ACLP
PHP22.27
Each
units
2.5 - 36V TO-92 Adjustable ±1.0 % Through Hole Shunt 100mA 37 V 2.5 V 36 V 3 - - 4.83 x 3.43 x 3.68mm
RS Stock No. 671-0292
Mfr. Part No.LM336Z5
PHP18.25
Each (In a Pack of 5)
units
5V TO-92 Programmable ±1.0 % Through Hole Shunt 400mA - 4.8 V 5.2 V 3 - 20 mV 4.58 x 3.86 x 4.58mm
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%.