{"product_id":"az431an-tl431-adjustable-voltage-reference-sot23-2-5-36v-1-percent-5pack","title":"AZ431AN \/ TL431 Adjustable Voltage Reference IC — SOT-23, 2.5–36V, 1% (5-Pack)","description":"\u003ch2\u003eAZ431AN \/ TL431 Adjustable Voltage Reference IC — SOT-23, 2.5–36V (5-Pack)\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eAZ431AN\u003c\/strong\u003e is a precision adjustable shunt voltage reference IC in SOT-23 SMD package — functionally equivalent to the classic TL431. It maintains a precise 2.495V reference between the REF and cathode pins, with output voltage adjustable from 2.5V to 36V via an external resistor divider. The 100mA cathode current capability makes it suitable for both voltage reference and shunt regulator applications. Ubiquitous in SMPS feedback loops (flyback converter optocoupler feedback), precision voltage references, and voltage monitoring circuits. Pack of 5.\u003c\/p\u003e\n\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e AZ431AN \/ AZ431LANTR-E1 (equivalent to TL431)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e SOT-23 (SMD)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReference Voltage:\u003c\/strong\u003e 2.495V (internal, ±1%)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Voltage Range:\u003c\/strong\u003e 2.5V – 36V (set by external R1\/R2)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCathode Current:\u003c\/strong\u003e 1mA – 100mA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Impedance:\u003c\/strong\u003e 0.22Ω (dynamic)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTemperature Coefficient:\u003c\/strong\u003e ~50ppm\/°C (typical)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePack Quantity:\u003c\/strong\u003e 5 ICs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eOutput Voltage Formula\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eVout = Vref × (1 + R1\/R2) = 2.495V × (1 + R1\/R2)\u003c\/li\u003e\n  \u003cli\u003eExample: 5V output — R1 = 10kΩ, R2 = 4.02kΩ\u003c\/li\u003e\n  \u003cli\u003eExample: 12V output — R1 = 38.3kΩ, R2 = 10kΩ\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSMPS feedback loop (flyback converter, with PC817 optocoupler)\u003c\/li\u003e\n  \u003cli\u003ePrecision 2.5V–36V voltage reference\u003c\/li\u003e\n  \u003cli\u003eOvervoltage protection circuit\u003c\/li\u003e\n  \u003cli\u003eBattery voltage monitor and alarm\u003c\/li\u003e\n  \u003cli\u003eLinear regulator feedback element\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eAZ431AN\/TL431 adjustable voltage reference, 5-pack — SOT-23, 2.5–36V, 1%, 100mA for SMPS feedback, precision voltage reference, and voltage monitor circuits.\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991447720171,"sku":"\u003cnone\u003e","price":6.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/az431an-az431lantr-e1-sot-23-adjustable-voltage-reference-ic.webp?v=1761804771","url":"https:\/\/keszoox.com\/products\/az431an-tl431-adjustable-voltage-reference-sot23-2-5-36v-1-percent-5pack","provider":"Keszoox","version":"1.0","type":"link"}