HT-32A
HT-32A is Thyristors manufactured by Littelfuse.
- Part of the HT-32 comparator family.
- Part of the HT-32 comparator family.
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
& Benefits t pliant ST Series: t &QPYZ4.QBDLBHF (DO-214) t )JHIUFNQFSBUVSFTPMEFS bonded die attachment HTM/HT Series: t .- /- .&-'%0USJHHFS package t#JMBUFSBMUSJHHFSJOHEFWJDF t (MBTTQBTTJWBUFE junctions 8JEFWPMUBHFSBOHF t selections t-POHUFSNSFMJBCJMJUZ t1BSBNFUFSTUBCJMJUZ t 3FMJBCMFCBSSJFSBHBJOTU 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.
Schematic Symbol
Absolute Maximum Ratings
Symbol ITRM TS TJ PD(AV) Parameter Pulse On-State Current Storage T emperature Range Operating Junction Temperature Device Power Dissipation TA = -40°C to +40°C
Test Conditions
Min
Max 2 1.5(- )
Unit A °C °C m W
-40 -40
+125 +125 See Product Selector T able
(- )Only Applies to HT-60 Notes: 1. Service Dissipation (at TA= -40°C to +40°C): 250m W for DO-35 and MINIMELF/SOD-80 and 300m W for DO214 2. Above +40°C, Derate: 3.6m W/°C for DO-35 and MINIMELF/SOD-80 and 3m W/°C for DO214
©2008 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to http://.littelfuse. for current information.
337 Revised: July 9, 2008
HTxxx & HTMxxx & STxxx Series http://..
DIACs
120PPS, TA ≤ 40°C pulse width = 10 μS
Teccor® brand Thyristors
Standard Bidirectional DIAC Trigger
Electrical Characteristics (TJ = 25°C, unless otherwise specified)
Symbol VBO ΔVBO VBB VBB (DYN) IBO Description
Breakover/Trigger Voltage Breakover Voltage Symmetry Δ...