ST40【PDF 1/8 页】DIAC 35-45V BILATERAL TRIG DO214

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Teccor ? brand Thyristors

Standard Bidirectional DIAC Trigger

HTxxx & HTMxxx & STxxx Series

Description

The HTM, HT, and ST series of bilateral trigger DIACs offer

a range of voltage characteristics from 27V to 70V. A DIAC

semiconductor is a full-wave or bidirectional Thyristor. It is

triggered from a blocking state to a conduction state for

either polarity of applied voltage whenever the amplitude of

applied voltage exceeds the breakover voltage of the DIAC.

Features & Bene?ts

compliant

ST Series:

(DO-214)

Schematic Symbol

junctions

selections

bonded die attachment

HTM/HT Series:

package

junction contamination

Applications

DIACs are used to trigger Triacs and SCRs in phase control

circuits for lamp dimming, universal motor speed control,

and heat control. They are used also for triggering

transistors in solid state ballast lighting controls.

Absolute Maximum Ratings

Symbol

Parameter

Test Conditions

Min

Max

Unit

I TRM

T S

T J

P D(AV)

Pulse On-State Current

Storage Temperature Range

Operating Junction Temperature

Device Power Dissipation

120PPS, T A ≤ 40°C

pulse width = 10 μS

T A = -40°C to +40°C

-40

1.5 (*)

+125

See Product

Selector Table

°C

(*)Only Applies to HT-60

Notes:

1. Service Dissipation (at T A = -40°C to +40°C): 250mW for DO-35 and MINIMELF/SOD-80

and 300mW for DO214

2. Above +40°C, Derate: 3.6mW/°C for DO-35 and MINIMELF/SOD-80

and 3mW/°C for DO214

?2008 Littelfuse, Inc.

Speci?cations are subject to change without notice.

Please refer to http://www.littelfuse.com for current information.

337

Revised: July 9, 2008

HTxxx & HTMxxx & STxxx Series

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