Voltage References

Voltage references are electronic devices that provide a fixed output voltage. They provide a constant voltage regardless of external factors. This includes the load on the device, temperature or fluctuations in the power supply. Learn more in our Complete Guide to Voltage References.

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.

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%.

Voltage reference ICs come in a standard semiconductor package, such as PDIP, SO, SOIC and SOT-23. The pin count may also be combined with the package type, for example SO-8.

Types of voltage references

  • Two-terminal shunt voltage reference
  • Three-terminal series voltage reference
  • Band-gap voltage reference
  • Low noise voltage reference
  • Micropower voltage reference

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 analogue-to-digital converters. They are also used in scientific applications and in medical equipment where voltage variations need to be tested regularly. Voltage references are also used in battery-powered devices.


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Omschrijving Prijs 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-stocknr. 461-9541
FabrikantnummerREF3025AIDBZT
€ 1,12
Each (In a Pack of 5)
Aantal stuks
2.5V SOT-23 Fixed ±0.2 % Surface Mount Series 25mA 7 V 2.495 V 2.505 V 3 325 μV/V 100 μV/mA 2.92 x 1.3 x 1mm
RS-stocknr. 121-8560
FabrikantnummerREF3025AIDBZT
€ 0,894
Each (On a Reel of 250)
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 169-5617
FabrikantnummerTL431CLPR
€ 0,086
Each (On a Reel of 2000)
Aantal stuks
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-stocknr. 661-9827
FabrikantnummerTL431CLPR
€ 0,26
Each (In a Pack of 10)
Aantal stuks
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-stocknr. 121-8915
FabrikantnummerLM4040AIM3-5.0/NOPB
€ 0,889
Each (On a Reel of 1000)
Aantal stuks
5V SOT-23 Fixed ±0.1 % Surface Mount Shunt 15mA - - - 3 - 8 mV 2.92 x 1.3 x 0.93mm
RS-stocknr. 536-1568
FabrikantnummerLM4040AIM3-5.0/NOPB
€ 1,95
Each
Aantal stuks
5V SOT-23 Fixed ±0.1 % Surface Mount Shunt 15mA - - - 3 - 8 mV 2.92 x 1.3 x 0.93mm
RS-stocknr. 517-1949
FabrikantnummerTL431ID
€ 0,285
Each (In a Pack of 20)
Aantal stuks
2.5 - 36V SOIC Adjustable ±2.0 % Surface Mount Shunt 100mA 37 V 2.5 V 36 V 8 - - 4.9 x 3.91 x 1.58mm
RS-stocknr. 620-0802
FabrikantnummerREF02AU
€ 4,656
Each (In a Pack of 5)
Aantal stuks
5V SOIC Fixed ±0.2 % Surface Mount Series - 40 V 4.985 V 5.015 V 8 0.01 %/V 0.01 %/mA 4.9 x 3.91 x 1.58mm
RS-stocknr. 661-9502
FabrikantnummerTL431ACDBZR
€ 0,248
Each (In a Pack of 10)
Aantal stuks
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-stocknr. 168-4859
FabrikantnummerTL431ACDBZT
€ 0,203
Each (On a Reel of 250)
Aantal stuks
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-stocknr. 922-2524
FabrikantnummerTL431ACDBZR
€ 0,094
Each (On a Reel of 3000)
Aantal stuks
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-stocknr. 661-9433
FabrikantnummerREF3030AIDBZT
€ 1,12
Each (In a Pack of 5)
Aantal stuks
3V SOT-23 Fixed ±0.2 % Surface Mount Series 25mA 7 V 2.994 V 3 V 3 375 μV/V 100 μV/mA 2.92 x 1.3 x 1mm
RS-stocknr. 922-2498
FabrikantnummerREF3030AIDBZT
€ 0,894
Each (On a Reel of 250)
Aantal stuks
3V SOT-23 Fixed ±0.2 % Surface Mount Series 25mA 7 V 2.994 V 3 V 3 375 μV/V 100 μV/mA 2.92 x 1.3 x 1mm
RS-stocknr. 527-306
FabrikantnummerTL431ACDBZT
€ 0,209
Each (In a Pack of 25)
Aantal stuks
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-stocknr. 145-7516
FabrikantnummerTL431ID
€ 0,285
Each (In a Tube of 75)
Aantal stuks
2.5 - 36V SOIC Adjustable ±2.0 % Surface Mount Shunt 100mA 37 V 2.5 V 36 V 8 - - 4.9 x 3.91 x 1.58mm
RS-stocknr. 162-5918
FabrikantnummerTLE2426IDR
€ 0,956
Each (On a Reel of 2500)
Aantal stuks
- SOIC Adjustable - Surface Mount Series 20mA 40 V 1.98 V 20.2 V 8 - - 4.9 x 3.91 x 1.58mm
RS-stocknr. 761-5886
FabrikantnummerLM385M3-1.2/NOPB
€ 1,072
Each (In a Pack of 5)
Aantal stuks
1.235V SOT-23 Fixed ±2.0 % Surface Mount Shunt 20mA - - 1.2 V 3 - - 2.92 x 1.3 x 0.93mm
RS-stocknr. 162-5822
FabrikantnummerLM4040C20IDBZT
€ 0,696
Each (On a Reel of 250)
Aantal stuks
2.048V SOT-23 Fixed ±0.5 % Surface Mount Shunt 15mA - - - 3 - 6 mV 2.92 x 1.3 x 1mm
RS-stocknr. 145-0362
FabrikantnummerTL1431CD
€ 0,345
Each (In a Tube of 75)
Aantal stuks
2.5 - 36V SOIC Adjustable ±0.4 % Surface Mount Shunt 100mA 37 V 2.5 V 36 V 8 - - 4.9 x 3.91 x 1.58mm
RS-stocknr. 796-8120
FabrikantnummerLT1004ID-2-5
€ 1,07
Each (In a Pack of 5)
Aantal stuks
2.5V SOIC Fixed ±0.8 % Surface Mount Shunt - - - - 8 - 20 mV 5 x 4 x 1.5mm