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.

...
Read more Read less

Filters

Viewing 1 - 20 of 1631 products
Results per page
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. 145-1010
Mfr. Part No.TL431ACLP
£0.109
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. 428-436
Mfr. Part No.TL431ACLP
£2.00
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. 661-9809
Mfr. Part No.TL431ACLPR
£0.255
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
£0.078
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. 661-9827
Mfr. Part No.TL431CLPR
£0.229
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. 283-845
Mfr. Part No.TL431CLP
£1.99
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. 121-8266
Mfr. Part No.TL431CLP
£0.098
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. 169-5617
Mfr. Part No.TL431CLPR
£0.072
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. 121-8776
Mfr. Part No.LM4040DIZ-5.0/NOPB
£0.186
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. 809-6359
Mfr. Part No.LM4040C25ILP
£0.645
Each (In a Pack of 10)
Units
2.5V TO-92 Fixed ±0.5 % Through Hole Shunt - - - 2.5 V 3 - - 5.21 x 4.19 x 5.34mm
RS Stock No. 162-6570
Mfr. Part No.LM4040C25ILP
£0.314
Each (In a Bag of 1000)
Units
2.5V TO-92 Fixed ±0.5 % Through Hole Shunt - - - 2.5 V 3 - - 5.21 x 4.19 x 5.34mm
RS Stock No. 121-8773
Mfr. Part No.LM4040AIZ-2.5/NOPB
£0.679
Each (In a Box of 1800)
Units
2.5V TO-92 Fixed ±0.1 % Through Hole Shunt 15mA - - - 3 - 6 mV 5.2 x 4.19 x 5.2mm
RS Stock No. 534-3037
Mfr. Part No.LM4040AIZ-2.5/NOPB
£2.01
Each
Units
2.5V TO-92 Fixed ±0.1 % Through Hole Shunt 15mA - - - 3 - 6 mV 5.2 x 4.19 x 5.2mm
RS Stock No. 534-3065
Mfr. Part No.LM4040DIZ-5.0/NOPB
£1.38
Each
Units
5V TO-92 Precision 1% Through Hole Shunt 15mA - - - 3 - - 5.2 x 4.19 x 5.2mm
RS Stock No. 162-4726
Mfr. Part No.LM385Z-1.2/NOPB
£0.236
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. 534-2860
Mfr. Part No.LM385Z-1.2/NOPB
£2.01
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
£2.71
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. 162-4378
Mfr. Part No.TLE2426CLP
£0.981
Each (In a Bag of 1000)
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. 178-8930
Mfr. Part No.TL431AILP
£0.144
Each (On a Reel of 1000)
Units
2.5 - 36V TO-92 Adjustable ±1.0 % Through Hole Shunt 100mA - - 36 V 3 - - 5.21 x 4.19 x 5.34mm
RS Stock No. 809-5374
Mfr. Part No.TL431AILP
£0.406
Each (In a Pack of 5)
Units
2.5 - 36V TO-92 Adjustable ±1.0 % Through Hole Shunt 100mA - - 36 V 3 - - 5.21 x 4.19 x 5.34mm
Related Products
ADR5040ARTZ-REEL7 | Analog Devices ADR5040ARTZ-REEL7, Shunt Voltage Reference ...
Description:
ADR5040ARTZ-REEL7 | Analog Devices ADR5040ARTZ-REEL7, Shunt Voltage Reference 2.048V, 4.09mV 3-Pin, SOT-23
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%.
TL431BW5-7 | Diodes Inc TL431BW5-7, Adjustable Shunt Voltage ...
Description:
TL431BW5-7 | Diodes Inc TL431BW5-7, Adjustable Shunt Voltage Reference 2.5 - 36V, ±0.5 % 5-Pin, SOT-25
ZXRE330EV-A | Diodes Inc ZXRE330EV-A, Fixed Shunt Voltage ...
Description:
ZXRE330EV-A | Diodes Inc ZXRE330EV-A, Fixed Shunt Voltage Reference 3.3V, ±2.0 % 3-Pin, SOT-23