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Part Catalog : TL431

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TL431

Type:
Regulator
Function:
Regulator
Series:
Alias:
KA431,S431
Comp. Pair:
Manufacturer:
Equivalent Parts:

Voltage Reference VREF:
2.495V

Introduction :

是半導體電源領域中最經典的三端可調式精密並聯穩壓器（Adjustable Precision Shunt Regulator）——業界標準型號 TL431 的同系列相容型號（主要由台系與陸系廠商如 Diodes / Anpec / WingShing 等生產的 S431）。

• 所屬系列。隸屬於全球通用的 431 可調式並聯穩壓器家族（TL431 / KA431 / AZ431 / S431 系列）。各家廠商會在 431 前方加上自家品牌前綴（如 TI 為 TL431、onsemi/Fairchild 為 KA431、茂達/永銘/Diodes 等為 S431）。

• 核心基準電壓（2.5V vs 1.24V）。標準 S431 / TL431 的內部參考電壓 V{REF} 為 2.495V（約 2.5V）；若型號為 TLV431 / S432 則屬於低壓版（參考電壓為 1.24V），兩者不可混用。

Datasheet
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  • Revised Version
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    13 Nov 2026 (GMT+8)