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. 661-9827
FabrikantnummerTL431CLPR
0,236 €
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. 169-5617
FabrikantnummerTL431CLPR
0,083 €
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. 121-8711
FabrikantnummerLM4040AIM3-10.0/NOPB
0,752 €
Each (On a Reel of 1000)
Aantal stuks
10V SOT-23 Fixed ±0.1 % Surface Mount Shunt 15mA - - - 3 - 12 mV 2.92 x 1.3 x 0.93mm
RS-stocknr. 533-8451
FabrikantnummerLM4040AIM3-10.0/NOPB
0,78 €
Each (In a Pack of 5)
Aantal stuks
10V SOT-23 Fixed ±0.1 % Surface Mount Shunt 15mA - - - 3 - 12 mV 2.92 x 1.3 x 0.93mm
RS-stocknr. 307-1780
FabrikantnummerREF1004C-2.5
4,05 €
Each
Aantal stuks
2.5V SOIC Fixed ±0.8 % Surface Mount Shunt 20mA - 2.49 V 2.511 V 8 - 10 mV 4.9 x 3.91 x 1.58mm
RS-stocknr. 121-8516
FabrikantnummerREF1004C-2.5
3,073 €
Each (In a Tube of 75)
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 761-5895
FabrikantnummerLM385M3-2.5/NOPB
1,102 €
Each (In a Pack of 5)
Aantal stuks
2.5V SOT-23 Fixed ±0.8 % Surface Mount Shunt 20mA - - 2.5 V 3 - 20 mV 2.92 x 1.4 x 0.94mm
RS-stocknr. 921-6939
FabrikantnummerLM385M3-2.5/NOPB
0,468 €
Each (On a Reel of 1000)
Aantal stuks
2.5V SOT-23 Fixed ±0.8 % Surface Mount Shunt 20mA - - 2.5 V 3 - 20 mV 2.92 x 1.4 x 0.94mm
RS-stocknr. 661-9521
FabrikantnummerTL431AIPK
0,259 €
Each (In a Pack of 10)
Aantal stuks
2.5 - 36V SOT-89 Adjustable ±1.0 % Surface Mount Shunt 100mA 37 V 2.5 V 36 V 3 - - 4.5 x 2.5 x 1.5mm
RS-stocknr. 121-8915
FabrikantnummerLM4040AIM3-5.0/NOPB
0,808 €
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. 121-9177
FabrikantnummerREF3133AIDBZT
1,409 €
Each (On a Reel of 250)
Aantal stuks
3.3V SOT-23 Fixed ±0.2 % Surface Mount Series 10mA 7 V 3.293 V 3.3 V 3 65 ppm/V 50 μV/mA 2.92 x 1.3 x 1mm
RS-stocknr. 536-1568
FabrikantnummerLM4040AIM3-5.0/NOPB
1,78 €
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. 168-4849
FabrikantnummerTL431ACDR
0,08 €
Each (On a Reel of 2500)
Aantal stuks
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-stocknr. 661-9344
FabrikantnummerLM4040C50IDBZR
0,778 €
Each (In a Pack of 5)
Aantal stuks
5V SOT-23 Fixed ±0.5 % Surface Mount Shunt 15mA - - - 3 - 8 mV 2.92 x 1.3 x 1mm
RS-stocknr. 162-5825
FabrikantnummerLM4040C50IDBZR
0,289 €
Each (On a Reel of 3000)
Aantal stuks
5V SOT-23 Fixed ±0.5 % Surface Mount Shunt 15mA - - - 3 - 8 mV 2.92 x 1.3 x 1mm
RS-stocknr. 121-8776
FabrikantnummerLM4040DIZ-5.0/NOPB
0,192 €
Each (In a Box of 1800)
Aantal stuks
5V TO-92 Fixed ±1.0 % Through Hole Shunt 15mA - - - 3 - - 5.2 x 4.19 x 5.2mm
RS-stocknr. 145-1210
FabrikantnummerLT1009ID
1,132 €
Each (In a Tube of 75)
Aantal stuks
2.5V SOIC Fixed ±0.2 % Surface Mount Shunt 10mA - 2.475 V 2.525 V 8 - 6 mV 4.9 x 3.91 x 1.58mm
RS-stocknr. 535-9717
FabrikantnummerLM4041DIM3-ADJ/NOPB
0,51 €
Each (In a Pack of 5)
Aantal stuks
1.233 - 10V SOT-23 Adjustable ±1.0 % Surface Mount Shunt 12mA - 1.24 V 10 V 3 - 2 mV 2.92 x 1.3 x 0.93mm
RS-stocknr. 923-3612
FabrikantnummerREF102AP
4,212 €
Each (In a Tube of 50)
Aantal stuks
10V PDIP Fixed ±0.1 % Through Hole Series - 40 V 9.99 V 10.01 V 8 2 ppm/V 40 ppm/mA 9.81 x 6.35 x 4.57mm
RS-stocknr. 534-3065
FabrikantnummerLM4040DIZ-5.0/NOPB
0,54 €
Each
Aantal stuks
5V TO-92 Precision 1% Through Hole Shunt 15mA - - - 3 - - 5.2 x 4.19 x 5.2mm