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 758-9727
製造零件編號AD688AQ
HK$251.51
單位
10V CERDIP Fixed ±0.05 % Through Hole Series 10mA 36 V - 10 V 16 ±200 μV/V ±200 μV/mA 21.34 x 7.87 x 3.56mm
RS庫存編號 639-4496
製造零件編號LM4120AIM5-2.5/NOPB
HK$15.222
/個 (每包:5個)
單位
2.5V SOT-23 Fixed ±0.2 % Surface Mount Series 5mA 14 V - - 5 0.008 %/V 0.12 %/mA 2.92 x 1.6 x 1.02mm
RS庫存編號 761-6356
製造零件編號LMV431BIMF/NOPB
HK$8.782
/個 (每包:5個)
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 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 178-8930
製造零件編號TL431AILP
HK$1.743
個 (在毎卷:1000)
單位
2.5 - 36V TO-92 Adjustable ±1.0 % Through Hole Shunt 100mA - - 36 V 3 - - 5.21 x 4.19 x 5.34mm
RS庫存編號 822-5907
製造零件編號LT1634BCS8-1.25#PBF
HK$41.88
/個 (每包:2個)
單位
1.25V SOIC Fixed ±0.05 % Surface Mount Shunt 1µA - 1.25 V 5 V 8 - - 5.004 x 3.98 x 1.498mm
RS庫存編號 162-5891
製造零件編號TL1431CDR
HK$1.109
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 921-0720
製造零件編號LM4040D30FTA
HK$2.633
/個 (每包:20個)
單位
3V SOT-23 Fixed ±1.0 % Surface Mount Shunt 15mA - - - 3 - - 3.04 x 1.4 x 1.02mm
RS庫存編號 460-932
製造零件編號LM336M-5.0/NOPB
HK$5.216
/個 (每包:10個)
單位
2.5V SOIC Fixed ±1.0 % Surface Mount Shunt 10mA - 4.8 V 5.2 V 8 - 20 mV 4.9 x 3.9 x 1.45mm
RS庫存編號 163-0923
製造零件編號LM385BZ-2.5G
HK$2.353
個 (以毎袋:2000)
單位
2.5V TO-92 Fixed ±1.5 % Through Hole Shunt 20mA - - 2.5 V 3 - - 5.2 x 4.19 x 5.33mm
RS庫存編號 797-4829
製造零件編號TL431AQDBZR,215
BrandNexperia
HK$2.43
Each (On a Tape of 50)
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 155-6676
製造零件編號LT1236AIS8-10#PBF
HK$49.472
毎管:50 個
單位
10V SOIC Fixed ±0.05 % Surface Mount Series 10mA 40 V 9.95 V 10.05 V 8 6 ppm/V 40 ppm/mA 5.004 x 3.988 x 1.498mm
RS庫存編號 404-326
製造零件編號REF5040AID
HK$28.34
單位
4.096V 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 764-8753
製造零件編號ADR3425ARJZ-R2
HK$33.37
單位
2.5V SOT-23 Fixed ±0.1 % Surface Mount Series 10mA 5.5 V 2.498 V 2.503 V 6 120 ppm/V 50 ppm/mA 3 x 1.7 x 1.3mm
RS庫存編號 158-1979
製造零件編號AD1582BRTZ-REEL7
HK$11.417
個 (在毎卷:3000)
單位
2.5V SOT-23 Fixed ±0.08 % Surface Mount Series 5mA 12 V 2.498 V 2.502 V 3 25 μV/V 3.5 mV/mA 2.9 x 1.3 x 1.02mm
RS庫存編號 912-6665
製造零件編號ADR444BRZ
HK$53.33
毎管:98 個
單位
4.096V SOIC Fixed ±0.04 % Surface Mount Series 10mA 20 V 4.094 V 4.098 V 8 20 ppm/V 50 ppm/mA 5 x 4 x 1.5mm
RS庫存編號 162-5085
製造零件編號LM4132DMF-4.1/NOPB
HK$12.786
個 (在毎卷:1000)
單位
4.096V SOT-23 Fixed ±0.4 % Surface Mount Series 20mA 6 V - - 5 100 ppm/V 25 ppm/mA 2.92 x 1.6 x 1.02mm
RS庫存編號 522-9076
製造零件編號REF02CPZ
HK$30.75
單位
5V PDIP Fixed ±1.0 % Through Hole Series 8mA 40 V 4.95 V 5.05 V 8 150 ppm/V 150 ppm/mA 9.27 x 7.24 x 3.43mm
RS庫存編號 533-5806
製造零件編號LM336Z-5.0/NOPB
HK$6.73
單位
5V TO-92 Precision 1% Through Hole Shunt 10mA - 4.8 V 5.2 V 3 - 20 mV 5.2 x 4.19 x 5.2mm
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