CYStech Electronics Corp.


Spec. No. : C302S3-H
Issued Date : 2004.04.13
Revised Date :
Page No. : 1/4

BAT54S3/BAT54AS3/BAT54CS3/BAT54SS3 CYStek Product Specification

Small Signal Schottky (double) diodes
BAT54S3/BAT54AS3
BAT54CS3/BAT54SS3
Description
Planar silicon Schottky barrier diodes encapsulated in a SOT-323 very small plastic SMD package.
Single diodes and double diodes with different pinning are available.

Features
•Guard ring protected
•Low forward voltage drop
•Very small plastic SMD package

Applications
•Ultra high-speed switching
•Voltage clamping
•Protection circuits
•Blocking diodes

Pinning Outline
Description Pin
BAT54 BAT54A BAT54C BAT54S
1 A K1 A1 A1
2 NC K2 A2 K2
3 K A1,A2 K1,K2 K1,A1

2
3
1
N.C.
12
3
1
2
3 3
21




SOT-323
1
2
3


(1) BAT54
(3)BAT54C
(2)BAT54A
(4)BAT54S
Diode configuration and symbol
Marking:

Type Marking Code
BAT54 S3 L4
BAT54AS3 42
BAT54CS3 43
BAT54SS3 44