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庫存編號 121-8694
製造零件編號LM336Z-2.5/NOPB
TWD11.80
個 (以毎盒:1800)
單位
2.5V TO-92 Fixed ±4 % Through Hole Shunt 10mA - 2.39 V 2.59 V 3 - 10 mV 5.2 x 4.19 x 5.2mm
RS庫存編號 533-5799
製造零件編號LM336Z-2.5/NOPB
TWD28.00
單位
2.5V TO-92 Fixed ±4 % Through Hole Shunt 10mA - 2.39 V 2.59 V 3 - 10 mV 5.2 x 4.19 x 5.2mm
RS庫存編號 398-849
製造零件編號TS431BCX RFG
TWD12.60
/個 (每包:50個)
單位
2.5 - 36V SOT-23 Adjustable 0.5% Surface Mount Shunt 100mA 37 V 2.495 V 36 V 3 - - 3.05 x 1.4 x 0.95mm
RS庫存編號 169-8955
製造零件編號TS431BCX RFG
TWD3.30
個 (在毎卷:3000)
單位
2.5 - 36V SOT-23 Adjustable 0.5% Surface Mount Shunt 100mA 37 V 2.495 V 36 V 3 - - 3.05 x 1.4 x 0.95mm
RS庫存編號 797-4841
製造零件編號TL431FDT,215
BrandNexperia
TWD10.50
/個 (每包:50個)
單位
2.5 - 36V SOT-23 Adjustable ±2.0 % Surface Mount Shunt 100mA 37 V 2.495 V 36 V 3 - - 3 x 1.4 x 1mm
RS庫存編號 165-9766
製造零件編號TL431FDT,215
BrandNexperia
TWD3.20
個 (在毎卷:3000)
單位
2.5 - 36V SOT-23 Adjustable ±2.0 % Surface Mount Shunt 100mA 37 V 2.495 V 36 V 3 - - 3 x 1.4 x 1mm
RS庫存編號 739-0448
製造零件編號LM336Z25
TWD13.00
/個 (每包:5個)
單位
2.5V TO-92 Fixed ±1.0 % Through Hole Shunt - - 2.44 V 2.54 V 3 - 10 mV 4.58 x 3.86 x 4.58mm
RS庫存編號 921-0546
製造零件編號AP431IAZTR-G1
TWD11.10
/個 (每包:50個)
單位
2.5V TO-92 Adjustable ±0.5 % Through Hole Shunt 100mA 36 V 2.5 V 36 V 3 - - 4.8 x 3.8 x 4.7mm
RS庫存編號 170-9003
製造零件編號AP431IAZTR-G1
TWD2.80
Each (On a Tape of 2000)
單位
2.5V TO-92 Adjustable ±0.5 % Through Hole Shunt 100mA 36 V 2.5 V 36 V 3 - - 4.8 x 3.8 x 4.7mm
RS庫存編號 100-0659
製造零件編號ISL21080CIH325Z-TK
BrandIntersil
TWD54.40
Each (On a Tape of 5)
單位
2.5V SOT-23 Fixed ±0.2 % Surface Mount Series ±7mA 5.5 V - 2.5 V 3 350 μV/V 350 μV/mA 2.92 x 1.3 x 0.95mm
RS庫存編號 661-9824
製造零件編號TL431CLPM
TWD10.90
/個 (每包:10個)
單位
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庫存編號 146-2383
製造零件編號ISL21080CIH325Z-TK
BrandIntersil
TWD27.40
個 (在毎卷:1000)
單位
2.5V SOT-23 Fixed ±0.2 % Surface Mount Series ±7mA 5.5 V - 2.5 V 3 350 μV/V 350 μV/mA 2.92 x 1.3 x 0.95mm
RS庫存編號 162-5904
製造零件編號TL431CLPM
TWD3.80
個 (在毎卷:2000)
單位
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庫存編號 526-773
製造零件編號TLE2426ILP
TWD93.00
/個 (每包:5個)
單位
- 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庫存編號 412-642
製造零件編號AD587JRZ
TWD268.00
單位
10V SOIC Fixed ±0.1 % Surface Mount Series 10mA 36 V 9.99 V 10.01 V 8 100 μV/V 100 μV/mA 5 x 4 x 1.5mm
RS庫存編號 912-7220
製造零件編號AD587JRZ
TWD213.00
毎管:98 個
單位
10V SOIC Fixed ±0.1 % Surface Mount Series 10mA 36 V 9.99 V 10.01 V 8 100 μV/V 100 μV/mA 5 x 4 x 1.5mm
RS庫存編號 284-220
製造零件編號TLE2426CLP
TWD93.00
單位
- 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庫存編號 461-9412
製造零件編號REF02BU
TWD228.00
單位
5V SOIC Fixed ±0.2 % Surface Mount Series - 40 V 4.99 V 5.01 V 8 0.01 %/V 0.008 %/mA 4.9 x 3.91 x 1.58mm
RS庫存編號 162-4378
製造零件編號TLE2426CLP
TWD44.40
個 (以毎袋:1000)
單位
- 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庫存編號 162-4379
製造零件編號TLE2426ILP
TWD44.40
個 (以毎袋:1000)
單位
- TO-92 Adjustable - Through Hole Series 20mA 40 V 1.98 V 20.2 V 3 - - 4.83 x 3.43 x 3.68mm