Thyristor Product Catalog 8 DO-35 DO-214AA Bilateral Trigger Diacs HT and ST Series 8 General Description Teccor’s "HT" and "ST" Series of bilateral trigger diacs offers a range of voltage characteristics from 27 to 70 volts. The diac semiconductor is a full-wave or bidirectional thyristor. It is triggered from a blocking-to-conduction state for either polarity of applied voltage whenever the amplitude of applied voltage exceeds the breakover voltage rating of the diac. The Teccor line of diacs features glass-passivated junctions to ensure long term device reliability and parameter stability. Teccor’s glass offers a rugged, reliable barrier against junction contamination. The diac specifications listed in this data sheet are for standard products. Special parameter selections such as close tolerance voltage symmetry are available. Please consult the factory for more information for custom design applications. Suffix RP signifies tape-and-reel packing. Example: HT32RP. Features • • "ST" Series • • +1 972-580-7777 Epoxy SMT package High temperature solder bonded die attachment "HT" Series • • Teccor Electronics Glass passivated junctions Wide voltage range selections DO-35 trigger package Pre-tinned leads http://www.teccor.com 8-1 Bilateral Trigger Diacs Thyristor Product Catalog ELECTRICAL CHARACTERISTICS TC = 25°C Part No. ∆VBO Breakover Voltage Symmetry VBO Breakover Voltage (Forward and Reverse) ∆VBO = [ | +VBO | - | - VBO | ] VBB Dynamic Breakback Voltage (3) | ∆V± | IBO Peak Breakover Current at Breakover Voltage ITRM Peak Pulse Current for 10µs 120 PPS TA ≤ 40°C Volts Volts µAmps Amps Volts DO-214AA DO-35 HT-32 MIN 27 MAX 37 MAX 3 (1) MIN 10 (2) MAX 25 MAX 2.0 HT-32A / HT-5761 28 36 2 (1) 7 at 10mA (4) 25 2.0 HT-32B / HT-5761A 30 34 2 (1) 7 at 10mA (4) 25 2.0 HT-34B HT-35 ST-34B ST-35 32 30 36 40 2 (1) 3 (1) 10 (2) 10 (2) 25 25 2.0 2.0 HT-36A / HT-5762 HT-36B ST-36A ST-36B 32 34 40 38 2 (1) 2 (1) 7 at 10mA (4) 10 (2) 25 25 2.0 2.0 HT-40 HT-60 ST-40 35 56 45 70 3 (1) 4 10 (2) 20 (2) 25 25 2.0 1.5 General Notes • Lead solder temperature is +230°C max. for 10 seconds max.; ≥ 1/16" (1.59mm) from case. • See “Package Dimensions” section of this catalog. LOAD UP TO 1500 WATTS 3.3 KΩ Electrical Specification Notes (1) Breakover Voltage symmetry as close as 1.0V is available from factory on these products. (2) See Figures 8.4 and 8.5 for Test Circuit and waveforms. (3) Typical switching time is 900 nano-seconds measured at IPK (see Figure 8.4) across a 20Ω resistor (see Figure 8.5). Switching time defined as rise time of IPK between the 10% to 90% points. (4) MT2 TRIAC Q2015L5 200 KΩ G 120 VAC 60 Hz MT1 0.1 µF 100 V See Figure 8.7. HT-35 BILATERAL TRIGGER DIAC Bilateral Trigger DIAC Specifications • Maximum Ratings, Absolute-Maximum Values Maximum Trigger Firing Capacitance: 0.1 µF Device Dissipation (at TA = -40° to +40°C): 250mW for DO-35 and 300mW for DO-214AA Derate Above +40°C: 3.6mW/°C for DO-35 and 3mW/°C for DO-214AA • Temperature Ranges Storage: -40°C to +125°C Operating (Junction): -40°C to +125°C http://www.teccor.com 8-2 Figure 8.1 Typical Diac-Triac Full-Wave Phase Control Circuit using Lower Voltage Diacs HT and ST Series Thermal Resistance Junction to Lead - RθJL: °C/W Junction to Ambient [RθJA]: °C/W (based on maximum lead temperature of 90°C for DO-214AA and 85°C for DO-35 devices) Y S DO-35 DO-214AA 100 [278] °C/W 65 [200] °C/W Teccor Electronics +1 972-580-7777 Thyristor Product Catalog Bilateral Trigger Diacs 10 5.0 Repetitive Peak On-State Current (ITRM) - Amps 3.0 2.0 1.0 PULSE REPETITION RATE =120 pps TA = 40˚C 0.5 0.3 ST or HT- 32x, -34x, -35, -36x, -40 HT-5761, -5761A, -5762 0.2 0.1 HT-60 0.05 0.03 0.02 SAFE OPERATING AREA .01 .005 .003 .002 .001 1 2 4 6 10 20 40 60 100 200 400 600 1000 2000 4000 10000 Base Pulse Duration - Microseconds Figure 8.2 Repetitive Peak On-State Current vs Pulse Duration Percentage of VBO Change - % +8 V ST or HT- 32x, 34x, 35, 36x, 40 HT-5761, 5761A, 5762 +6 C +V BO ∆V+ +4 HT-60 t 0 +2 0 ∆V-VBO -2 IL -4 +IPK -6 0 t 0 -40 -20 0 -IPK +20 +40 +60 +80 +100 +120 +140 Junction Temperature (TJ) - ˚C Figure 8.3 Normalized VBO Change vs Junction Temperature Teccor Electronics +1 972-580-7777 Typical pulse base width is 10µSec. Figure 8.4 Test Circuit Waveforms (See Figure 8.5.) http://www.teccor.com 8-3 Bilateral Trigger Diacs Thyristor Product Catalog Current * 47 kΩ 10mA V 100 kΩ D.U.T. Breakover Current IBO RL CT O.1 µF VC -VBO IL 120V RMS 60 Hz Voltage 20Ω 1% +VBO Breakover Voltage VBO *Adjust for one firing in each half cycle. D.U.T. = Diac Figure 8.5 Circuit Used to Measure Diac Characteristics (See Figure 8.4.) Figure 8.7 V-I Characteristics Peak Output Current (IPK) - mA 300 250 200 Per Figure 8.5 with RL of 20Ω 100 L CA PI TY (35 V DE ) CE VI 150 50 0 .01 .02 .03 .04 .05 .06 .07 .08 .09 .10 Triggering Capacitance (CT) - µF Figure 8.6 Peak Output Current vs Triggering Capacitance http://www.teccor.com 8-4 Teccor Electronics +1 972-580-7777