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 661-9461
製造零件編號REF3312AIDCKT
HK$17.37
/個 (每包:5個)
單位
1.25V SC-70 Fixed ±0.15 % Surface Mount Series 5mA 7.5 V - - 3 50 ppm/V 50 ppm/mA 2 x 1.25 x 0.9mm
RS庫存編號 145-7355
製造零件編號TL431AIPK
HK$1.068
個 (在毎卷:1000)
單位
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庫存編號 661-9568
製造零件編號TL431IDBVT
HK$6.16
/個 (每包:5個)
單位
2.5 - 36V SOT-23 Adjustable ±2.0 % 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 545-5528
製造零件編號LT1019CN8-2.5#PBF
HK$76.45
單位
2.5V PDIP Fixed ±0.2 % Through Hole Series/Shunt 10mA 40 V - - 8 3 ppm/V 0.05 mV/mA 10.16 x 6.48 x 3.3mm
RS庫存編號 796-9117
製造零件編號ADR3433ARJZ-R2
HK$33.37
Each (On a Tape of 5)
單位
3.3V SOT-23 Fixed ±0.1 % Surface Mount Series 10mA 5.5 V 3.2967 V 3.3 V 6 120 ppm/V 50 ppm/mA 3 x 1.7 x 1.3mm
RS庫存編號 761-5157
製造零件編號LM4128BMF-4.1/NOPB
HK$17.71
Each (On a Tape of 5)
單位
4.096V SOT-23 Fixed ±0.2 % Surface Mount Series 20mA 12 V - 4.1 V 5 100 ppm/V 120 ppm/mA 2.92 x 1.6 x 1.02mm
RS庫存編號 159-8056
製造零件編號AD1583BRTZ-REEL7
HK$11.417
個 (在毎卷:3000)
單位
3V SOT-23 Fixed ±0.1 % Surface Mount Series 5mA 5 V 2.997 V 3 V 3 25 μV/V 3.7 mV/mA 3.04 x 1.4 x 1.02mm
RS庫存編號 190-4447
製造零件編號MAX6143AASA25+
HK$51.585
毎管:100 個
單位
2.5V SO Precision 0.06% Surface Mount - - 40 V 2.49 V 2.501 V 8 10 ppm/V 15 (Sourcing) ppm/mA, 900 (Sink) ppm/mA 5 x 4 x 1.5mm
RS庫存編號 162-7696
製造零件編號LM4040BIM3-10.0/NOPB
HK$5.97
個 (在毎卷:1000)
單位
10V SOT-23 Fixed ±0.1 % Surface Mount Shunt 15µA - - 10 V 3 - 23 mV 3.04 x 1.4 x 1.02mm
RS庫存編號 163-1003
製造零件編號NCP431ACDR2G
HK$1.38
個 (在毎卷:2500)
單位
2.5 - 36V SOIC Programmable ±1.0 % Surface Mount Shunt 100mA - 2.475 V 36 V 8 - - 5 x 4 x 1.5mm
RS庫存編號 779-8915
製造零件編號LT1009IS8#PBF
HK$50.57
/個 (每包:2個)
單位
2.5V SOIC Fixed ±0.2 % Surface Mount Shunt 10mA - - 2.5 V 8 - - 4.572 x 4.572 x 3.556mm
RS庫存編號 709-8206
製造零件編號ADR443ARZ
HK$49.65
單位
3V SOIC Fixed ±0.13 % Surface Mount Series 10mA 20 V 2.996 V 3 V 8 20 ppm/V 50 ppm/mA 5 x 4 x 1.5mm
RS庫存編號 912-6372
製造零件編號ADR445BRZ
HK$59.04
毎管:98 個
單位
5V SOIC Fixed ±0.04 % Surface Mount Series 10mA 20 V 4.998 V 5.006 V 8 20 ppm/V 50 ppm/mA 5 x 4 x 1.5mm
RS庫存編號 146-1025
製造零件編號MAX6120ESA+
HK$20.911
毎管:100 個
單位
1.2V SOIC Fixed ±1.0 % Surface Mount Series - 12 V 1.188 V 1.212 V 8 30 μV/V 1 μV/μA 5 x 4 x 1.5mm
RS庫存編號 145-1210
製造零件編號LT1009ID
HK$11.38
毎管:75 個
單位
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庫存編號 183-2031
製造零件編號AD780BRZ
HK$119.97
單位
4 - 36V SOIC N Programmable ±1mV Surface Mount Series, Shunt 10mA 36 V - 2.5 V, 3 V 8 10 μV/V 75 μV/mA 5 x 4 x 1.5mm
RS庫存編號 169-8162
製造零件編號NJM2825F-TE1
HK$11.215
個 (在毎卷:3000)
單位
1.2 - 13V SOT-23 Adjustable ±0.5 % Surface Mount Shunt 12mA 14 V 1.2 V 13 V 5 - 10 mV 2.9 x 1.6 x 1.1mm
RS庫存編號 523-7370
製造零件編號REF192GPZ
HK$41.16
單位
2.5V PDIP Fixed ±0.08 % Through Hole Series 30mA 18 V 2.49 V 2.51 V 8 8 ppm/V 15 ppm/mA 9.27 x 7.24 x 3.43mm
RS庫存編號 162-6415
製造零件編號TL432ACDBZT
HK$4.003
個 (在毎卷:250)
單位
2.5 - 36V SOT-23 Adjustable ±1.0 % Surface Mount Shunt 100mA 37 V 2.5 V 36 V 3 - - 3.04 x 1.4 x 1.02mm
RS庫存編號 159-7622
製造零件編號AD587JQ
HK$122.79
毎管:48 個
單位
10V CERDIP Fixed ±0.1 % Through Hole Series 10mA 36 V 9.99 V 10.01 V 8 ±100 μV/V ±100 μV/mA 10.29 x 7.87 x 3.56mm