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SN431

Kodenshi
Part Number SN431
Manufacturer Kodenshi
Description Programmable Voltage Reference
Published Jan 30, 2016
Detailed Description SN431/SNF431 Programmable Voltage Reference ◈ Description The SN431 series are 3-terminal precision shunt regulators tha...
Datasheet PDF File SN431 PDF File

SN431
SN431


Overview
SN431/SNF431 Programmable Voltage Reference ◈ Description The SN431 series are 3-terminal precision shunt regulators that are programmable over a wide voltage range of 2.
495V to 36V with ±0.
3%, ±0.
5%, ±1.
0% tolerance.
The SN431 series have a low dynamic impedance of 0.
15Ω.
These features make the SN431 series an excellent replacement for zener diodes in numerous applications circuits that require a precision reference voltage.
◈ Features  Programmable output voltage from 2.
495V to 36V  Voltage reference tolerance : ±0.
3%, ±0.
5%, ±1.
0%  Cathode current capability of 1mA to 100mA ◈ Pin Assignment (Top View) A RAK PKG : SOT-89 Apply Device : SN431xF (Top View) (Top View) (Top View) (1)K (2)R (3)A PKG : SOT-23 Apply Device : SN431xS (Marking Side View) (1)R (2)K (3)A PKG : SOT-23 Apply Device : SNF431xS (Marking Side View) A NC NC K R RA K RAK PKG : SOT-25 Apply Device : SN431xN PKG : TO-92 Apply Device : SN431x PKG : TO-92M Apply Device : SN431xM [ K : Cathode, A: Anode, R : Reference ] KSD-I0A013-009 1 ◈ Symbol Cathode(K) Reference(R) Anode(A) SN431/SNF431 ◈ Functional block diagram Cathode(K) Reference(R) VREF=2.
495V + – Anode(A) ◈ Ordering Information Vref Tolerance PKG Type Device Name TO-92 SN431A TO-92M SN431AM ±1% SOT-23 SOT-23 SN431AS1) SNF431AS2) SOT-25 SN431AN SOT-89 SN431AF TO-92 SN431B TO-92M SN431BM ±0.
5% SOT-23 SOT-23 SN431BS1) SNF431BS2) SOT-25 SN431BN SOT-89 SN431BF ±0.
3% SOT-23 SOT-23 SN431CS1) SNF431CS2) 1) SN431xS Pin Connection : (1) Cathode, (2) Reference, (3) Anode 2) SNF431xS Pin Connection : (1) Reference, (2) Cathode, (3) Anode 3) □ : Year & Week Code 4) △ : Machine Code [SOT-23 PKG.
] Marking SN431 A SN431 A 4GA□3)△ 4KA□3)△ N4A□3) SN431A SN431 B SN431B 4GB□3)△ 4KB□3)△ N4B□3) SN431B 4GC□3)△ 4KC□3)△ KSD-I0A013-009 2 ◈ Absolute maximum ratings Characteristic Symbol Cathode to Anode voltage VKA Cathode current Range (Continuous) IK Reference input current Range Iref SOT-23 PD(No...


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