Voltage References

Voltage references are electronic devices that provide a fixed output voltage. They provide a constant voltage regardless of external factors. This includes the load on the device, temperature or fluctuations in the power supply. Learn more in our Complete Guide to Voltage References.

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.

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%.

Voltage reference ICs come in a standard semiconductor package, such as PDIP, SO, SOIC and SOT-23. The pin count may also be combined with the package type, for example SO-8.

Types of voltage references

  • Two-terminal shunt voltage reference
  • Three-terminal series voltage reference
  • Band-gap voltage reference
  • Low noise voltage reference
  • Micropower voltage reference

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 analogue-to-digital converters. They are also used in scientific applications and in medical equipment where voltage variations need to be tested regularly. Voltage references are also used in battery-powered devices.


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제품설명 단가 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 제품 번호 428-436
제조사 부품 번호TL431ACLP
₩661.85
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2.5 - 36V TO-92 Adjustable ±1.0 % Through Hole Shunt 100mA 37 V 2.5 V 36 V 3 - - 4.83 x 3.43 x 3.68mm
RS 제품 번호 145-1010
제조사 부품 번호TL431ACLP
₩235.60
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2.5 - 36V TO-92 Adjustable ±1.0 % Through Hole Shunt 100mA 37 V 2.5 V 36 V 3 - - 4.83 x 3.43 x 3.68mm
RS 제품 번호 101-8304
제조사 부품 번호LM385Z-1.2G
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₩443.30
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1.235V TO-92 Fixed ±2.0 % Through Hole Shunt 20mA - 1.205 V 1.26 V 3 - 20 mV 5.2 x 4.19 x 5.33mm
RS 제품 번호 463-482
제조사 부품 번호LM385Z-1.2G
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₩992.00
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1.235V TO-92 Fixed ±2.0 % Through Hole Shunt 20mA - 1.205 V 1.26 V 3 - 20 mV 5.2 x 4.19 x 5.33mm
RS 제품 번호 661-9827
제조사 부품 번호TL431CLPR
₩623.10
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2.5 - 36V TO-92 Adjustable ±2.0 % Through Hole Shunt 100mA 37 V 2.5 V 36 V 3 - - 4.83 x 3.43 x 3.68mm
RS 제품 번호 776-0759
제조사 부품 번호NCP431ACSNT1G
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₩613.80
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2.5 - 36V SOT-23 Programmable ±1.0 % Surface Mount Shunt 100mA - 2.475 V 36 V 3 - - 3.04 x 1.4 x 1.01mm
RS 제품 번호 163-1004
제조사 부품 번호NCP431ACSNT1G
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₩165.85
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2.5 - 36V SOT-23 Programmable ±1.0 % Surface Mount Shunt 100mA - 2.475 V 36 V 3 - - 3.04 x 1.4 x 1.01mm
RS 제품 번호 169-5617
제조사 부품 번호TL431CLPR
₩139.50
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2.5 - 36V TO-92 Adjustable ±2.0 % Through Hole Shunt 100mA 37 V 2.5 V 36 V 3 - - 4.83 x 3.43 x 3.68mm
RS 제품 번호 535-9616
제조사 부품 번호LM4040CIM3-4.1/NOPB
₩1,314.40
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4.1V SOT-23 Fixed ±0.5 % Surface Mount Shunt 15mA - - - 3 - 7 mV 2.92 x 1.3 x 0.93mm
RS 제품 번호 714-1114
제조사 부품 번호TL431CDT
₩558.00
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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 제품 번호 179-1626
제조사 부품 번호TL431CD
₩468.10
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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 제품 번호 168-6826
제조사 부품 번호TL431CDT
₩212.35
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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 제품 번호 857-979
제조사 부품 번호TL431CD
₩682.00
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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 제품 번호 145-3275
제조사 부품 번호TL431CLPG
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₩167.40
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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 제품 번호 463-246
제조사 부품 번호TL431CLPG
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₩482.05
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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 제품 번호 121-8299
제조사 부품 번호REF5045AID
₩4,056.35
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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 제품 번호 121-8713
제조사 부품 번호LM4040DIM3-2.5/NOPB
₩444.85
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2.5V SOT-23 Fixed ±1.0 % Surface Mount Shunt 15mA - - - 3 - 8 mV 2.92 x 1.3 x 0.93mm
RS 제품 번호 162-5937
제조사 부품 번호TLVH431BQDBZT
₩1,612.00
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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 제품 번호 163-0424
제조사 부품 번호CAT102TDI-GT3
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₩948.60
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- 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 제품 번호 808-3959
제조사 부품 번호CAT102TDI-GT3
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₩1,925.10
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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