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 & Benefits t compliant ST Series: t#JMBUFSBMUSJHHFSJOHEFWJDF t(MBTTQBTTJWBUFE junctions Schematic Symbol t&QPYZ4.QBDLBHF (DO-214) t)JHIUFNQFSBUVSFTPMEFS bonded die attachment t8JEFWPMUBHFSBOHF selections HTM/HT Series: t-POHUFSNSFMJBCJMJUZ t.*/*.&-'%0USJHHFS package t1BSBNFUFSTUBCJMJUZ t3FMJBCMFCBSSJFSBHBJOTU 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 ITRM Parameter Test Conditions Pulse On-State Current 120PPS, TA ≤ 40°C pulse width = 10 μS Min Max 2 1.5(*) Unit A TS Storage Temperature Range -40 +125 °C TJ Operating Junction Temperature -40 +125 °C See Product Selector Table mW PD(AV) Device Power Dissipation TA = -40°C to +40°C (*)Only Applies to HT-60 Notes: 1. Service Dissipation (at TA= -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. Specifications 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 DIACs Symbol Teccor® brand Thyristors Standard Bidirectional DIAC Trigger Electrical Characteristics (TJ = 25°C, unless otherwise specified) Symbol VBO ΔVBO VBB Description Test Conditions Min Max Unit Breakover/Trigger Voltage 50/60Hz Sine Wave See Product Selector Table See Product Selector Table V Breakover Voltage Symmetry +VBO to -VBO 2(Note 1) V Δ Breakback Voltage(Note 4) VBB (DYN) VBO to V10mA 5 V VBO to V 15 V 10 V (*) 6mA Dynamic Δ Breakback Voltage(Notes 2 & 3) 120 PPS Breakover Current 50/60Hz Sine Wave IBO 15 μA 3. Typical switching time is 900 nano-seconds measured at IPK (Figure 4) across a 20 Ω resistor (Figure 5). Switching time is defined as rise time of IPK between the 10% to 90% points 4. See V-I Characteristics Static Characteristics - Not Applicable (*) Only Applies to HT-60 Electrical Characteristic Notes: 1. Breakover voltage symmetry as close as 1V is available from the factory for these products. 2. See Figure 4 and Figure 5 for test circuit and waveforms. Product Selector Package Availability Part Number VBO MINIMELF DO-35 DO-214 MIN MAX XX-32 — HT-32 ST-32 27V 37V XX-32A/ 5761 — HT-32A — 28V 36V HTM-32B HT-32B ST-32B 30V 34V XX-34B — HT-34B ST-34B 32V 36V XX-35 — HT-35 ST-35 30V 40V XX-36A/ 5762 — HT-36A ST-36A 32V 40V XX-36B — HT-36B ST-36B 34V 38V XX-40 — HT-40 ST-40 35V 45V XX-60 — HT-60 — 56V 70V XX-32B/ 5761A “XX” = HTM for MINIMELF HT for DO-35 ST for DO-214 Thermal Resistances Symbol RR(J-L) RR(J-A) Description Junction to Lead Junction to Ambient Test Conditions Value Unit Maximum Lead Temperature: 85°C DO-35 100 °C/W Maximum Lead Temperature: 90°C DO-214 65* °C/W Maximum Lead Temperature: 87°C MINIMELF 75 °C/W Free-Air DO-35 278 °C/W * Mounted on 1 cm2 copper foil surface; two-ounce copper foil HTxxx & HTMxxx & STxxx Series 338 Revised: July 9, 2008 ©2008 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to http://www.littelfuse.com for current information. Teccor® brand Thyristors Standard Bidirectional DIAC Trigger Figure 2: Typical DIAC/Triac Full-wave Phase Control Circuit Figure 1: V-I Characteristics Resistive Load 3.3 k Triac MT2 200 k 120 V ac 60 Hz G MT1 Diac 0.1 μF 100 V Figure 3: Repetitive Peak On-state Current vs. Pulse Duration Repetitive Peak On-state Current (ITRM) – Amps 10 5.0 3.0 2.0 HT-32x, -34x, -35, -36x, -40 HT-5761, -5761A, -5762 ST-32x, -34x, -35, -36x, -40 HTM-32B 1.0 0.5 0.3 0.2 0.1 HT-60 0.05 Safe Operating Area 0.03 0.02 .01 .005 .003 .002 PULSE REPETITION RATE = 120 pps TA = 40 ˚C .001 1 2 4 6 10 20 40 60 100 200 400 1000 2000 4000 10000 Figure 4: Normalized VBO Change vs. Junction Temperature DIACs Base Pulse Duration – μs Figure 5: Test Circuit Waveforms (Refer to Figure 5) 6% 4% VBO Change -- % 2% 0% -2% -4% -6% -8% -40 -20 0 20 40 60 80 100 120 140 Junction Temperature (TJ) -- °C ©2008 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to http://www.littelfuse.com for current information. 339 Revised: July 9, 2008 HTxxx & HTMxxx & STxxx Series Teccor® brand Thyristors Standard Bidirectional DIAC Trigger Figure 6: Circuit Used to Measure DIAC Characteristics (Refer to Figure 4) 47 k Figure 7: Peak Output Current vs. Triggering Capacitance (Per Figure 5 with RL of 20 Ω) 300 100 k Peak Output Current (IPK) – mA * D.U.T. RL VC CT 0.1 μF IL 120 V rms 60 Hz 20 1% 250 200 150 V 35 e) vic De l( ica Typ 100 50 0 * Adjust for one firing in each half cycle. D.U.T. = Diac .01 .02 .03 .04 .05 .06 .07 .08 .09 .10 Triggering Capacitance (CT) – μF Soldering Parameters Pre Heat - Temperature Min (Ts(min)) 150°C - Temperature Max (Ts(max)) 200°C - Time (min to max) (ts) 60 – 190 secs Average ramp up rate (Liquidus Temp (TL) to peak TS(max) to TL - Ramp-up Rate Reflow Pb – Free assembly 5°C/second max 5°C/second max - Temperature (TL) (Liquidus) 217°C - Time (min to max) (ts) 60 – 150 seconds Peak Temperature (TP) 260 °C Time within 5°C of actual peak Temperature (tp) 20 – 40 seconds Ramp-down Rate 5°C/second max Time 25°C to peak Temperature (TP) 8 minutes Max. Do not exceed 280°C HTxxx & HTMxxx & STxxx Series tP TP Temperature Reflow Condition Ramp-up TL tL TS(max) Ramp-do Ramp-down Preheat TS(min) tS 25 time to peak temperature 340 Revised: July 9, 2008 Time ©2008 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to http://www.littelfuse.com for current information. Teccor® brand Thyristors Standard Bidirectional DIAC Trigger Physical Specifications Reliability/Environmental Tests Terminal Finish 100% Matte-Tin Plated/ Pb-Free Solder Dipped Body Material DO-214: UL recognized epoxy meeting flammabilty classification 94V-0. DO-35/MINIMELF: Glass case body Test High Temperature Voltage Blocking Temperature Cycling DO-214: Copper Alloy DO-35/MINIMELF: Copper Clad Iron Lead Material Specifications and Conditions Temperature/ Humidity MIL-STD-750, M-1040, Cond A Applied 80% of Rated Min VBO (VAC-peak) @ 125°C for 1008 hours MIL-STD-750, M-1051, 100 cycles; -40°C to +150°C; 15-min dwell-time EIA / JEDEC, JESD22-A101 1008 hours; 80% of Rated Min VBO (VDC): 85°C; 85% rel humidity Design Considerations High Temp Storage MIL-STD-750, M-1031,1008 hours; 150°C Careful selection of the correct device for the application’s operating parameters and environment will go a long way toward extending the operating life of the Thyristor. Overheating and surge currents are the main killers of DIACs. Correct mounting, soldering, and forming of the leads also help protect against component damage. Low-Temp Storage 1008 hours; -40°C Thermal Shock MIL-STD-750, M-1056 10 cycles; 0°C to 100°C; 5-min dwell time at each temperature; 10 sec (max) transfer time between temperature Autoclave EIA / JEDEC, JESD22-A102 168 hours (121°C at 2 ATMs) and 100% R/H Resistance to Solder Heat MIL-STD-750 Method 2031 Solderability ANSI/J-STD-002, category 3, Test A Lead Bend MIL-STD-750, M-2036 Cond E Burn-in 1 firing per 1/2 cycle, 168 hours Dimensions – MINIMELF / SOD-80 (MM Package) A C Dimensions B E D .002 E-F Inches Millimeters Min Typ Max Min Typ Max A 0.125 0.134 0.142 3.18 3.40 3.61 B 0.066 0.068 0.070 1.68 1.73 1.78 C 0.012 0.018 0.020 0.30 0.46 0.51 D — 0.063 — — 1.60 — F Dimensions – DO-35 (Y Package) A Dimension A (Note 1) B (Note 2) C (Note 1) Inches Millimeters Min Max Min Max 0.060 0.090 1.530 2.280 0.015 0.381 B C D (TYP.) ©2008 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to http://www.littelfuse.com for current information. 0.165 3.430 4.190 D 0.018 0.022 0.458 0.558 E 1.000 25.400 Notes: 1. Package contour optional within dimensions A and C. Slugs, if any, shall be included within this cylinger but shall not be subject to the minimum limit of Dimention A. 2. Lead diameter is not controlled in this zone to allow for flash, lead finish build-up and minor irregularities other than slugs. B E TYP. 0.135 341 Revised: July 9, 2008 HTxxx & HTMxxx & STxxx Series DIACs C Teccor® brand Thyristors Standard Bidirectional DIAC Trigger Dimensions – DO-214 (S Package) B D H F L C A E J G K Inches Dimension TC / T LTEMPERATURE MEASUREMENT POINT 2.80 (.110”) 2.00 (.079”) 2.00 (.079”) Recommended Soldering Pad Outline (Reference Only) Millimeters Min Max Min A 0.140 0.155 3.56 Max 3.94 B 0.205 0.220 5.21 5.59 C 0.077 0.083 1.96 2.11 D 0.166 0.180 4.22 4.57 E 0.036 0.063 0.91 1.60 F 0.066 0.083 1.67 2.11 G 0.004 0.008 0.10 0.20 H 0.077 0.086 1.96 2.18 J 0.043 0.053 1.09 1.35 K 0.008 0.012 0.20 0.30 L 0.039 0.049 0.99 1.24 Packing Options Part Number Quantity Marking Package Weight/ Unit Packing Mode Base Quantity Reel Box HTM-xxxRP — MINIMELF 0.040g Tape & Reel 5000 2500 — HT-xxxRP — DO35 0.150g Tape & Reel 5000 5000 — HT-xxx — DO35 0.150g Bulk 5000 — 5000 STxxx DO214 0.075g Tape & Reel 2500 2500 — ST-xxxRP HTxxx & HTMxxx & STxxx Series 342 Revised: July 9, 2008 ©2008 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to http://www.littelfuse.com for current information. Teccor® brand Thyristors Standard Bidirectional DIAC Trigger DO-214 Embossed Carrier Reel Pack (RP) Specifications Meets all EIA-481-1 Standards 0.157 (4.0) 0.472 (12.0) 0.36 (9.2) 0.315 (8.0) 0.512 (13.0) Arbor Hole Dia. 0.059 DIA (1.5) Cover tape 12.99 (330.0) Dimensions are in inches (and millimeters). 0.49 (12.4) Direction of Feed DO-35 Reel Pack (RP) Specifications Meets all EIA-296 Standards DO-35 2.063 (52.4) DIACs 10.0 - 14.0 (254.0 - 356.0) 3.15 (80.0) TYP 0.956 (24.3) Direction of Feed 0.252 (6.4) Dimensions are in inches (and millimeters). 0.197 (5.0) ©2008 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to http://www.littelfuse.com for current information. 343 Revised: July 9, 2008 HTxxx & HTMxxx & STxxx Series Teccor® brand Thyristors Standard Bidirectional DIAC Trigger MINIMELF Reel Pack (RP) Specifications 1.5mm 4mm 8mm 5.8mm 4mm 177.8mm 13mm Abor Hole Diameter 9.4mm DIRECTION OF FEED Part Numbering System Part Marking System x T M xxxx xx Package Type: H = DO-35 (with leads) or MINIMELF (no leads) S = DO-214 Device Type: T = DIAC Package Type Designator: M: MINIMELF (surface mount version without leads) HTxxx & HTMxxx & STxxx Series DO-35 & MINIMELF: No marking Packaging: Blank = Bulk Pack RP = Reel Pack DO-214: First Line: Part Number Second Line: Date Code Voltage Range: 32= 27V to 37V 32A/5761= 28V to 36V 32B/5761A= 30V to 34V 34B= 32V to 36V 35= 30V to 40V 36A/5762= 32V to 40V 36B= 34V to 38V 40= 35V to 45V 60= 56V to 70V 344 Revised: July 9, 2008 ©2008 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to http://www.littelfuse.com for current information.