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 857-979
製造零件編號TL431CD
HK$11.70
單位
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庫存編號 168-6826
製造零件編號TL431CDT
HK$0.542
個 (在毎卷:2500)
單位
2.5 - 36V SOIC Adjustable ±2.0 % Surface Mount Shunt 100mA 37 V 2.5 V 36 V 8 - - 4.9 x 3.9 x 1.25mm
RS庫存編號 179-1613
製造零件編號TL431CDR
HK$1.395
毎管:75 個
單位
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庫存編號 162-5894
製造零件編號TL431ACDBVR
HK$0.556
個 (在毎卷:3000)
單位
2.5 - 36V SOT-23 Adjustable ±1.0 % Surface Mount Shunt 100mA 37 V 2.5 V 36 V 5 - - 2.9 x 1.6 x 1.15mm
RS庫存編號 463-246
製造零件編號TL431CLPG
HK$2.222
/個 (每包:50個)
單位
2.5 - 36V TO-92 Adjustable ±2.2 % Through Hole Shunt 100mA 37 V 2.5 V 36 V 3 - - 5.2 x 4.19 x 5.33mm
RS庫存編號 159-8079
製造零件編號AD588JQ
HK$243.698
毎管:25 個
單位
±10 V, ±5 V CERDIP Programmable ±0.06 % Through Hole Series 10mA 36 V - 10 V 16 ±200 μV/V ±50 μV/mA 21.34 x 7.87 x 3.56mm
RS庫存編號 758-9702
製造零件編號AD588JQ
HK$239.77
單位
±10 V, ±5 V CERDIP Programmable ±0.06 % Through Hole Series 10mA 36 V - 10 V 16 ±200 μV/V ±50 μV/mA 21.34 x 7.87 x 3.56mm
RS庫存編號 535-9616
製造零件編號LM4040CIM3-4.1/NOPB
HK$4.78
/個 (每包:5個)
單位
4.1V SOT-23 Fixed ±0.5 % Surface Mount Shunt 15mA - - - 3 - 7 mV 2.92 x 1.3 x 0.93mm
RS庫存編號 714-1114
製造零件編號TL431CDT
HK$1.314
/個 (每包:20個)
單位
2.5 - 36V SOIC Adjustable ±2.0 % Surface Mount Shunt 100mA 37 V 2.5 V 36 V 8 - - 4.9 x 3.9 x 1.25mm
RS庫存編號 404-320
製造零件編號REF5045AID
HK$33.46
單位
4.5V SOIC Fixed ±0.05 % Surface Mount Series 10mA 18 V - - 8 1 ppm/V 50 ppm/mA 5 x 4 x 1.5mm
RS庫存編號 121-8299
製造零件編號REF5045AID
HK$24.985
毎管:75 個
單位
4.5V SOIC Fixed ±0.05 % Surface Mount Series 10mA 18 V - - 8 1 ppm/V 50 ppm/mA 5 x 4 x 1.5mm
RS庫存編號 165-9340
製造零件編號MAX6107EUR+T
BrandMaxim
HK$7.852
個 (在毎卷:2500)
單位
4.5V SOT-23 Fixed ±0.4 % Surface Mount Series 5mA 12.6 V 4.482 V 4.518 V 3 550 μV/V 0.9 mV/mA, 8 mV/mA 3.04 x 1.4 x 1.02mm
RS庫存編號 145-3275
製造零件編號TL431CLPG
HK$0.699
個 (以毎袋:2000)
單位
2.5 - 36V TO-92 Adjustable ±2.2 % Through Hole Shunt 100mA 37 V 2.5 V 36 V 3 - - 5.2 x 4.19 x 5.33mm
RS庫存編號 778-1526
製造零件編號MAX6107EUR+T
BrandMaxim
HK$7.834
/個 (每包:5個)
單位
4.5V SOT-23 Fixed ±0.4 % Surface Mount Series 5mA 12.6 V 4.482 V 4.518 V 3 550 μV/V 0.9 mV/mA, 8 mV/mA 3.04 x 1.4 x 1.02mm
RS庫存編號 661-9499
製造零件編號TL431ACDBVR
HK$1.884
/個 (每包:10個)
單位
2.5 - 36V SOT-23 Adjustable ±1.0 % Surface Mount Shunt 100mA 37 V 2.5 V 36 V 5 - - 2.9 x 1.6 x 1.15mm
RS庫存編號 526-307
製造零件編號TL431CDR
HK$2.211
/個 (每包:25個)
單位
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庫存編號 169-5614
製造零件編號TL431AID
HK$0.967
毎管:75 個
單位
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庫存編號 159-7584
製造零件編號ADR02AKSZ-REEL7
HK$15.558
個 (在毎卷:3000)
單位
5V SC-70 Fixed ±0.1 % Through Hole Series 10mA 36 V 4.995 V 5.005 V 5 40 ppm/V 80 ppm/mA 2.2 x 1.35 x 1mm
RS庫存編號 533-8489
製造零件編號LM4040DIM3-2.5/NOPB
HK$5.346
/個 (每包:5個)
單位
2.5V SOT-23 Fixed ±1.0 % Surface Mount Shunt 15mA - - - 3 - 8 mV 2.92 x 1.3 x 0.93mm
RS庫存編號 178-8844
製造零件編號LM385M-2.5/NOPB
HK$7.123
毎管:95 個
單位
2.5V SOIC Fixed ±3 % Surface Mount Shunt 20mA - - - 8 - 20 mV 4.9 x 3.9 x 1.45mm