DB4 데이터 시트보기 (PDF) - STMicroelectronics

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DB4

DIAC

STMicroelectronics 

DB3 DB4 SMDB3

®

DIAC

FEATURES

s VBO : 32V and 40V

s LOW BREAKOVER CURRENT

DESCRIPTION

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.

DO-35

(DB3 and DB4)

2

3

1

SOT-23

(SMDB3)*

Pin 1 and 3 must be shorted

together

ABSOLUTE MAXIMUM RATINGS (limiting values)

Symbol

Parameter

ITRM

Repetitive peak on-state current

tp = 20 µs F= 120 Hz

Tstg

Storage temperature range

Tj

Operating junction temperature range

Value

Unit

SMDB3

1.00

A

DB3 / DB4

2.00

- 40 to + 125 °C

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

October 2001 - Ed: 2B

1/5

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