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DB3 DB4 SMDB3

®

October 2001 - Ed: 2B

DIAC

DO-35

(DB3 and DB4)

s

s

LOW BREAKOVER CURRENT

FEATURES

Functioning as a trigger diode with a fixed voltage

reference, the DB3/DB4 series can be used in

conjunction with triacs for simplified gate control

circuits or as a starting element in fluorenscent

lamp ballasts.

A new surface mount version is now available in

SOT-23 package, providing reduced space and

compatibility with automatic pick and place

equipment.

DESCRIPTION

Symbol

Parameter

Value

Unit

Repetitive peak on-state current

tp=20

µs

F= 120 Hz

SMDB3

1.00

A

DB3 / DB4

2.00

Tstg

Tj

Storage temperature range

Operating junction temperature range

-40to+125

°C

ABSOLUTE MAXIMUM RATINGS (limiting values)

1

2

3

SOT-23

(SMDB3)*

Pin 1 and 3 must be shorted

together

Note: * SMDB3 indicated as Preliminary spec as product is still in development stage.