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. 165-8369
Mfr. Part No.ZXRE330EV-A
$0.348
Each (On a Tape of 2000)
units
3.3V SOT-23 Fixed ±2.0 % Surface Mount Shunt 5mA - - - 3 - - 3 x 1.4 x 1mm
RS Stock No. 921-0837
Mfr. Part No.ZXRE330EV-A
$0.671
Each (In a Pack of 20)
units
3.3V SOT-23 Fixed ±2.0 % Surface Mount Shunt 5mA - - - 3 - - 3 x 1.4 x 1mm
RS Stock No. 121-8776
Mfr. Part No.LM4040DIZ-5.0/NOPB
$0.351
Each (In a Box of 1800)
units
5V TO-92 Fixed ±1.0 % Through Hole Shunt 15mA - - - 3 - - 5.2 x 4.19 x 5.2mm
RS Stock No. 534-3065
Mfr. Part No.LM4040DIZ-5.0/NOPB
$0.89
Each
units
5V TO-92 Precision 1% Through Hole Shunt 15mA - - - 3 - - 5.2 x 4.19 x 5.2mm
RS Stock No. 923-3616
Mfr. Part No.REF102CP
$12.154
Each (In a Tube of 50)
units
10V PDIP Fixed ±0.025 % Through Hole Series - 40 V 9.998 V 10.003 V 8 1 ppm/V 20 ppm/mA 9.81 x 6.35 x 4.57mm
RS Stock No. 660-5626
Mfr. Part No.REF102CP
$16.92
Each
units
10V PDIP Fixed ±0.025 % Through Hole Series - 40 V 9.998 V 10.003 V 8 1 ppm/V 20 ppm/mA 9.81 x 6.35 x 4.57mm
RS Stock No. 808-3959
Mfr. Part No.CAT102TDI-GT3
$1.39
Each (In a Pack of 10)
units
0.6V TSOT-23 Adjustable ±1.0 % Surface Mount Shunt - 20 V 20 V - 5 1 mV 8 mV 2.9 x 1.6 x 0.9mm
RS Stock No. 163-0424
Mfr. Part No.CAT102TDI-GT3
$0.912
Each (On a Reel of 3000)
units
- TSOT-23 Adjustable ±1.0 % Surface Mount Shunt - 20 V 20 V - 5 1 mV 8 mV 2.9 x 1.6 x 0.9mm
RS Stock No. 283-845
Mfr. Part No.TL431CLP
$0.58
Each
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. 145-6840
Mfr. Part No.LT1634BCS8-1.25#PBF
$5.648
Each (In a Tube of 50)
units
1.25V SOIC Fixed ±0.05 % Surface Mount Shunt 1µA - 1.25 V 5 V 8 - - 5.004 x 3.98 x 1.498mm
RS Stock No. 169-5617
Mfr. Part No.TL431CLPR
$0.101
Each (On a Reel of 2000)
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. 822-5907
Mfr. Part No.LT1634BCS8-1.25#PBF
$8.35
Each (In a Pack of 2)
units
1.25V SOIC Fixed ±0.05 % Surface Mount Shunt 1µA - 1.25 V 5 V 8 - - 5.004 x 3.98 x 1.498mm
RS Stock No. 661-9827
Mfr. Part No.TL431CLPR
$0.373
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. 121-8266
Mfr. Part No.TL431CLP
$0.182
Each (In a Box of 1000)
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. 661-9809
Mfr. Part No.TL431ACLPR
$0.429
Each (In a Pack of 10)
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. 168-6332
Mfr. Part No.TL431ACLPR
$0.151
Each (On a Reel of 2000)
units
2.5 - 36V SOIC Adjustable ±0.5 % Surface Mount Shunt 100mA 37 V 2.5 V 36 V 8 - - 4.9 x 3.91 x 1.58mm
RS Stock No. 428-436
Mfr. Part No.TL431ACLP
$0.65
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. 145-1010
Mfr. Part No.TL431ACLP
$0.157
Each (In a Bag of 1000)
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. 620-0161
Mfr. Part No.TLE2426CD
$2.28
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. 332-685
Mfr. Part No.MAX6325CPA+
BrandMaxim
$17.36
Each
units
2.5V PDIP Fixed ±0.04 % Through Hole Series 15mA 40 V 2.499 V 2.501 V 8 18 ppm/V 1 ppm/mA 9.91 x 7.87 x 4.45mm
Related Products
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%.
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%.