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 912-6375
製造零件編號ADR435BRZ
HK$57.039
毎管:98 個
單位
5V SOIC Fixed ±0.04 % Surface Mount Series 30mA 20 V 4.998 V 5.002 V 8 20 ppm/V 15 ppm/mA 5 x 4 x 1.5mm
RS庫存編號 145-0362
製造零件編號TL1431CD
HK$1.809
毎管:75 個
單位
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庫存編號 165-9765
製造零件編號TL431AQDBZR,215
BrandNexperia
HK$0.865
個 (在毎卷:3000)
單位
2.5 - 36V SOT-23 Adjustable ±1.0 % Surface Mount Shunt 100mA 37 V 2.495 V 36 V 3 - - 3 x 1.4 x 1mm
RS庫存編號 921-0543
製造零件編號AP4310AMTR-G1
HK$2.094
/個 (每包:50個)
單位
2.5V SOIC Fixed ±0.4 % Surface Mount Shunt 80mA 36 V - - 8 - - 5.1 x 4 x 1.45mm
RS庫存編號 121-8694
製造零件編號LM336Z-2.5/NOPB
HK$2.926
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 162-5891
製造零件編號TL1431CDR
HK$1.267
個 (在毎卷:2500)
單位
2.5V 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庫存編號 121-8839
製造零件編號LM4040BIM3-2.5/NOPB
HK$4.493
個 (在毎卷:1000)
單位
2.5V SOT-23 Fixed ±0.2 % Surface Mount Shunt 15mA - - - 3 - 6 mV 2.92 x 1.3 x 0.93mm
RS庫存編號 697-7754
製造零件編號ADR435BRZ
HK$73.57
單位
5V SOIC Fixed ±0.04 % Surface Mount Series 30mA 20 V 4.998 V 5.002 V 8 20 ppm/V 15 ppm/mA 5 x 4 x 1.5mm
RS庫存編號 922-2230
製造零件編號LMV431BIMF/NOPB
HK$4.128
個 (在毎卷:1000)
單位
1.24 - 30V SOT-23 Adjustable ±0.5 % Surface Mount Shunt 15mA - 1.224 V 1.259 V 3 - - 2.92 x 1.3 x 0.93mm
RS庫存編號 158-5253
製造零件編號AD586MNZ
HK$110.706
毎管:50 個
單位
5V PDIP Fixed ±0.04 % Through Hole Series 10mA 36 V 4.998 V 5.002 V 8 100 μV/V 400 μV/mA 9.27 x 7.24 x 3.43mm
RS庫存編號 802-3903
製造零件編號ADR4540ARZ
HK$57.47
單位
4.096V SOIC Fixed ±0.04 % Surface Mount Series 10mA 15 V - - 8 10 ppm/V 120 ppm/mA 5 x 4 x 1.5mm
RS庫存編號 461-9563
製造零件編號REF3040AIDBZT
HK$15.082
/個 (每包:5個)
單位
4.096V SOT-23 Fixed ±0.2 % Surface Mount Series 25mA 7 V 4.088 V 4.104 V 3 410 μV/V 100 μV/mA 2.92 x 1.3 x 1mm
RS庫存編號 517-0586
製造零件編號LT1009CD
HK$11.238
/個 (每包:5個)
單位
2.5V SOIC Fixed ±0.2 % Surface Mount Shunt 10mA - 2.485 V 2.515 V 8 - 10 mV 4.9 x 3.91 x 1.58mm
RS庫存編號 533-8467
製造零件編號LM4040AIM3-4.1/NOPB
HK$15.226
/個 (每包:5個)
單位
4.096V SOT-23 Fixed ±0.1 % Surface Mount Shunt 15mA - - - 3 - 7 mV 2.92 x 1.3 x 0.93mm
RS庫存編號 412-349
製造零件編號ADR02ARZ
HK$20.404
/個 (每包:5個)
單位
5V SOIC Fixed ±0.1 % Surface Mount Series 10mA 36 V 4.995 V 5.005 V 8 30 ppm/V 70 ppm/mA 5 x 4 x 1.5mm
RS庫存編號 732-1345
製造零件編號LM385BLPR-1-2
HK$4.556
/個 (每包:5個)
單位
1.235V TO-92 Fixed ±1.0 % Through Hole Shunt 20mA - 1.22 V 1.25 V 3 - 20 mV 5.21 x 4.19 x 5.34mm
RS庫存編號 713-9899
製造零件編號NJM431M
HK$6.40
/個 (每包:5個)
單位
2.5 - 36V DMP Adjustable ±2.2 % Surface Mount Shunt 100mA 37 V 2.5 V 36 V 8 - 0.1 % 5 x 5 x 1.6mm
RS庫存編號 158-1879
製造零件編號AD581SH
HK$195.324
個 (以毎盒:100)
單位
10V TO-5 Fixed ±0.3 % Through Hole Series 10mA 40 V - - 3 0.005 %/V 500 μV/mA 9.4 x 9.4 x 4.7mm
RS庫存編號 154-7683
製造零件編號LT1034BCZ-2.5#PBF
HK$35.238
個 (以毎袋:100)
單位
2.5V TO-92 Fixed ±1.6 % Through Hole Shunt 20mA - - 2.5 V 3 - - 4.572 x 4.572 x 3.556mm
RS庫存編號 163-1234
製造零件編號TLV431BSN1T1G
HK$1.305
個 (在毎卷:3000)
單位
1.24 - 16V SOT-23 Adjustable ±0.5 % Surface Mount Shunt 20mA - 1.24 V 16 V 3 - - 3.04 x 1.04 x 1.01mm