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 121-9267
製造零件編號TL431AIDR
HK$0.869
個 (在毎卷:2500)
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 759-0446
製造零件編號ADR02AKSZ-REEL7
HK$23.64
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 779-8909
製造零件編號LM329BZ#PBF
HK$23.855
/個 (每包:2個)
單位
6.9V TO-92 Fixed ±5 % Through Hole Shunt 15mA - - 6.9 V 3 - - 4.572 x 4.572 x 3.556mm
RS庫存編號 534-3065
製造零件編號LM4040DIZ-5.0/NOPB
HK$5.12
單位
5V TO-92 Precision 1% Through Hole Shunt 15mA - - - 3 - - 5.2 x 4.19 x 5.2mm
RS庫存編號 460-988
製造零件編號LM385M-2.5/NOPB
HK$6.175
/個 (每包:10個)
單位
2.5V SOIC Fixed ±3 % Surface Mount Shunt 20mA - - - 8 - 20 mV 4.9 x 3.9 x 1.45mm
RS庫存編號 163-0424
製造零件編號CAT102TDI-GT3
HK$3.88
個 (在毎卷:3000)
單位
- TSOT-23 Adjustable ±1.0 % Surface Mount Shunt - 20 V 20 V - 5 1 mV 8 mV 2.9 x 1.6 x 0.9mm
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 661-9653
製造零件編號TLVH431BQDBZT
HK$11.106
/個 (每包:5個)
單位
1.24 - 18V SOT-23 Adjustable ±0.5 % Surface Mount Shunt 70mA 20 V 1.24 V 18 V 3 - - 2.92 x 1.3 x 1mm
RS庫存編號 808-3959
製造零件編號CAT102TDI-GT3
HK$5.029
/個 (每包:10個)
單位
0.6V TSOT-23 Adjustable ±1.0 % Surface Mount Shunt - 20 V 20 V - 5 1 mV 8 mV 2.9 x 1.6 x 0.9mm
RS庫存編號 698-9069
製造零件編號MCP1525T-I/TT
BrandMicrochip
HK$6.65
單位
2.5V SOT-23 Fixed ±1.0 % Surface Mount Series 20mA 7 V 2.475 V 2.525 V 3 350 μV/V 1.3 mV/mA 2.9 x 1.3 x 0.95mm
RS庫存編號 889-5137
製造零件編號MCP1525T-I/TT
BrandMicrochip
HK$4.146
個 (在毎卷:3000)
單位
2.5V SOT-23 Fixed ±1.0 % Surface Mount Series 20mA 7 V 2.475 V 2.525 V 3 350 μV/V 1.3 mV/mA 2.9 x 1.3 x 0.95mm
RS庫存編號 154-7674
製造零件編號LM329BZ#PBF
HK$17.949
個 (以毎袋:100)
單位
6.9V TO-92 Fixed ±5 % Through Hole Shunt 15mA - - 6.9 V 3 - - 4.572 x 4.572 x 3.556mm
RS庫存編號 158-0224
製造零件編號ADR03BRZ
HK$33.662
毎管:98 個
單位
2.5V SOIC Fixed ±0.1 % Surface Mount Series 10mA 36 V 2.498 V 2.503 V 8 30 ppm/V 70 ppm/mA 5 x 4 x 1.5mm
RS庫存編號 121-8298
製造零件編號REF5025AID
HK$24.05
毎管:75 個
單位
2.5V 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 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 709-4285
製造零件編號LM385LPE3-1-2
HK$6.48
/個 (每包:5個)
單位
1.235V TO-92 Fixed ±2.0 % Through Hole Shunt 20mA - 1.21 V 1.26 V 3 - 20 mV 4.83 x 3.43 x 3.68mm
RS庫存編號 111-1104
製造零件編號REF02CPZ
HK$23.202
毎管:50 個
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 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 121-8712
製造零件編號LM4040AIM3-4.1/NOPB
HK$7.115
個 (在毎卷:1000)
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 162-5824
製造零件編號LM4040C41IDBZR
HK$3.01
個 (在毎卷:3000)
單位
4.096V SOT-23 Fixed ±0.5 % Surface Mount Shunt 15mA - - - 3 - 7 mV 2.92 x 1.3 x 1mm