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| STC SIDAC Series DO-15X DO-214 Surface Mount TO-92 Type 70 TO-202 E9 General Description The sidac is a silicon bilateral voltage triggered switch with greater power-handling capabilities than standard diacs. Upon application of a voltage exceeding the sidac breakover voltage point, the sidac switches on through a negative resistance region to a low on-state voltage. Conduction continues until the current is interrupted or drops below the minimum holding current of the device. Suntac's sidacs feature glass-passivated junctions to ensure a rugged and dependable device capable of withstanding harsh environments. Variations of devices covered in this data sheet are available for custom design applications. Consult the factory for more information. Applications * * * * * * * * * High-voltage lamp ignitors Natural gas ignitors Gas oil ignitors High-voltage power supplies Xenon ignitors Overvoltage protector Pulse generators Fluorescent lighting ignitors HID lighting ignitors Features * * * AC circuit oriented Glass-passivated junctions High surge current capability 1 Sidac Data Sheets Part No. (10) Do not use tab IT(RMS) (6) (7) (8) VDRM VBO (1) IDRM IBO (2) IH (3) (4) Type Pin 1 Pin 3 TO-92 DO-15X Pin 2 Do not use DO-214 Amps MAX 1 1 1 1 1 1 1 1 1 1 1 1 Volts MIN 70 90 90 90 90 90 90 180 180 190 200 200 MIN 79 95 104 110 120 130 140 190 205 220 240 270 Volts MAX 97 113 118 125 138 146 170 215 230 250 280 330 Amps MAX 5 5 5 5 5 5 5 5 5 5 5 5 Amps MAX 10 10 10 10 10 10 10 10 10 10 10 10 mAmps TYP 60 60 60 60 60 60 60 60 60 60 60 60 MAX 150 150 150 150 150 150 150 150 150 150 150 150 TO-202 See "Package Dimensions" section for variations. (9) SDB0900E70 SDB1050E70 SDB1100E70 SDB1200E70 SDB1300E70 SDB1400E70 SDB1500E70 SDB2000E70 SDB2200E70 SDB2400E70 SDB2500E70 SDB0900G SDB1050G SDB1100G SDB1200G SDB1300G SDB1400G SDB1500G SDB2000G SDB2200G SDB2400G SDB2500G SDB2000F1 SDB2200F1 SDB2400F1 SDB2500F1 SDB3000F1 SDB0900S SDB1050S SDB1100S SDB1200S SDB1300S SDB1400S SDB1500S SDB2000S SDB2200S SDB2400S SDB2500S Specific Test Conditions di/dt -- Critical rate-of-rise of on-state current dv/dt -- Critical rate-of-rise of off-state voltage at rated VDRM; TJ 100 C IBO -- Breakover current 50/60 Hz sine wave IDRM -- Repetitive peak off-state current 50/60 Hz sine wave; V = VDRM IH -- Dynamic holding current 50/60 Hz sine wave; R = 100 IT(RMS) -- On-state RMS current TJ 125 C 50/60 Hz sine wave ITSM -- Peak one-cycle surge current 50/60 Hz sine wave (nonrepetitive) RS -- Switching resistance R Electrical Specification Notes (1) (2) (3) (4) (5) (6) See 4 for VBO change versus junction temperature. See 4 for IBO versus junction temperature. See 3 for IH versus case temperature. See 5 for test circuit. See 3 for more than one full cycle rating. TC 90 C for TO-92 Sidac TC 105 C for TO-202 Sidacs TL 100 C for DO-15X TL 90 C for DO-214 See 5 for clarification of sidac operation. For best sidac operation, the load impedance should be near or less than switching resistance. See package outlines for lead form configurations. When ordering special lead forming, add type number as suffix to part number. S V -V BO S = ------------------------------- 50/60 Hz sine wave I - I BO S (7) (8) (9) VBO -- Breakover voltage 50/60 Hz sine wave VDRM -- Repetitive peak off-state voltage VTM -- Peak on-state voltage; IT = 1 A (10) Do not use electrically connected mounting tab or center lead. +I General Notes * * * All measurements are made at 60 Hz with a resistive load at an ambient temperature of +25 C unless otherwise specified. Storage temperature range (TS) is -65 C to +150 C. The case (TC) or lead (TL) temperature is measured as shown on the dimensional outline drawings in the "Package Dimensions" section of this catalog. Junction temperature range (TJ) is -40 C to +125 C. Lead solder temperature is a maximum of +230 C for 10 s maximum; 1/16" (1.59 mm) from case. RS = (VBO - VS) IT IH IS RS -V IDRM IBO +V * * VT VBO VS VDRM (IS - IBO) -I V-I Characteristics 2 Data Sheets Sidac LK VTM ITSM (5) RS (8) dv/dt di/dt Volts MAX Package E 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 G 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 3 3 3 3 3 F S 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 20 20 20 20 20 20 20 20 20 20 20 20 Amps 60 Hz 50 Hz 16.7 16.7 16.7 16.7 16.7 16.7 16.7 16.7 16.7 16.7 16.7 16.7 k MIN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Volts/Sec MIN 1500 1500 1500 1500 1500 1500 1500 1500 1500 1500 1500 1500 Amps/Sec TYP 150 150 150 150 150 150 150 150 150 150 150 150 Thermal Resistance (Steady State) R JC [R JA] C/W (TYPICAL) * E Package G Package F Package S Package IH IH(TC = 25 C) Ratio of 2.0 1.5 1.0 .5 0 35 [95] 18 [75] 7 [45] ** 30 *** [85] * See Electrical Specification Note (6). ** R JA for TO-202 Type 23 and Type 41 is 70 C/Watt. *** Mounted on 1 cm2 copper foil surface; two-ounce copper foil -40 -15 +25 +65 +105 +125 Case Temperature (TC) - C 100 Peak Surge (Non-repetitive) On-state Current [ITSM] - Amps 40 SUPPLY FREQUENCY: 60 Hz Sinusoidal LOAD: Resistive RMS ON-STATE CURRENT: IT RMS Maximum Rated Value at Specified Junction Temperature Figure E9.2 Normalized DC Holding Current versus Case/Lead Temperature 20 10 8.0 6.0 4.0 Notes: 1) Blocking capability may be lost during and immediately following surge current interval. 2) Overload may not be repeated until junction temperature has returned to steady-state rated value. 2.0 1.0 1.0 10 100 1000 Surge Current Duration - Full Cycles Figure E9.1 Peak Surge Current versus Surge Current Duration 3 Sidac Data Sheets 600 400 di/dt Limit Line No n-R ep ITRM VBO Firing Current Waveform Repetitive Peak On-state Current (ITRM) - Amps 200 100 80 60 40 20 10 8 6 4 2 1 0.8 0.6 4 2 x 10-3 f= ea ted pe titi on l/f Fr eq ue nc f= 10 f= 10 Hz 0H yf =5 Repetitive Peak Breakover Current (IBO) Multiplier Re to 9 8 7 6 5 4 3 2 z Hz V = VBO 1k TJ = 125 C Max Hz f= f= f=2 5k 10 Hz kH z 1 20 30 40 50 60 70 80 90 100 110 120 130 0 kH z Junction Temperature (TJ) - C 68 1 x 10-2 2 4 68 1 x 10-1 2 4 6 81 Pulse base width (to) - ms Figure E9.3 Repetitive Peak On-state Current (I TRM) versus Pulse Width at Various Frequencies Figure E9.6 Normalized Repetitive Peak Breakover Current versus Junction Temperature 9 CURRENT WAVEFORM: Sinusoidal - 60 Hz LOAD: Resistive or Inductive FREE AIR RATING 140 Maximum Allowable Ambient Temperature (TA) - C TL = 25 C 8 Positive or Negative Instantaneous On-state Current (iT) - Amps 120 7 6 5 4 3 2 1 0 TO-202 "F" Package TO-92, DO-214 and DO-15X "E", "S" and "G" Packages 100 TO -20 2 80 DO -1 Ty pe 1 60 5X TO an dT -9 2 O- an 20 40 d 2T DO yp -2 e2 14 3a nd 41 25 20 0 0.2 0.4 0.6 0.8 1.0 0 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 RMS On-state Current [IT(RMS)] - Amps Positive or Negative Instantaneous On-state Voltage (vT) - Volts Figure E9.4 Maximum Allowable Ambient Temperature versus On-state Current Figure E9.7 On-state Current versus On-state Voltage (Typical) +4 K2xxxF1 2.2 2.0 Average On-state Power Dissipation [PD(AV)] - Watts 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 +2 Percentage of VBO Change - % CURRENT WAVEFORM: Sinusoidal LOAD: Resistive or Inductive CONDUCTION ANGLE: See Basic Sidac Cirucit 0 -2 -4 -6 -8 -10 -12 -40 -20 0 SDB2xxE SDB2xxG SDB2xxS SDB1xxE SDB1xxG SDB1xxS TO-202 "F" Package "E", "S" and "G" Packages TO-92, DO-214 and DO-15X +25 +20 +40 +60 +80 +100 +120 +140 0 0.2 0.4 0.6 0.8 1.0 Junction Temperature (TJ) - C RMS On-state Current [IT(RMS)] - Amps Figure E9.5 Normalized VBO Change versus Junction Temperature Figure E9.8 Power Dissipation (Typical) versus On-state Current [Refer to 5 for Basic Sidac Circuit] 4 Data Sheets Sidac SCR Sidac 100 2W - 10 F + Xenon Lamp 250 V K2200G 20 M 100-250 V ac 60 Hz 100-250 V ac 60 Hz + 10 F - 450 V 120 V ac 60 Hz 4 kV Sidac 200400 V Trigger Transformer 20:1 0.01 F 400 V Figure E9.9 Comparison of Sidac versus SCR for Gas Ignitor Circuit Figure E9.12 Xenon Lamp Flashing Circuit Push to test 4.7 F 10 F 100 V S1 4.7 k Switch to test in each direction - + - 50 V + 1/2W 100-250 V ac 60 Hz K1200E Sidac 200 V 100 1% Device Under Test + 24 V ac 60 Hz 4.7 F 100 V 1.2 F S1 Scope IPK Trace Stops H.V. Ignitor IH Scope Indication Figure E9.10 Circuit (Low Voltage Input) for Gas Ignition Figure E9.13 Dynamic Holding Current Test Circuit for Sidacs Ballast Ballast Sidac 3.3 k 0.47 F 400 V Lamp Sidac 7.5 k 0.22 F Lamp 100-250 V ac 60 Hz VBO VBO VBO IH Load IH 120 V ac 60 Hz 16 mH 220 V ac 60 Hz 120-145 Conduction Angle IH Load Current 120 V ac 220 V ac Figure E9.11 Typical High Pressure Sodium Lamp Firing Circuit Figure E9.14 Basic Sidac Circuit 5 Sidac Data Sheets (a) Circuit VBO (b) Waveforms R SIDAC VDC(IN) VB0 VC t V C C IL RL I L Rmax VIN - VBO IBO VIN - VTM IH (MIN) t Rmin Figure E9.15 Relaxation Oscillator Using a Sidac VCE Monitor (See Note B) RBB1 = 150 TIP-47 100 mH Input Voltage 0V 5V Collector Current 0.63 A 0 tw 3 ms (See Note A) tw 100 ms Input 50 2N6127 (or equivalent) 50 RBB2 = 100 + VBB2 =0 + VCC = 20 V RS = 0.1 IC Monitor Sidac VBO Collector Voltage 10 V VCE(sat) VBB1 =10 V - Test Circuit Voltage and Current Waveforms Note A: Input pulse width is increased until ICM = 0.63 A. Note B: Sidac (or Diac or series of Diacs) chosen so that VBO is just below VCEO rating of transistor to be protected. The Sidac (or Diac) eliminates a reverse breakdown of the transistor in inductive switching circuits where otherwise the transistor could be destroyed. Figure E9.16 Sidac Added to Protect Transistor for Typical Transistor Inductive Load Switching Requirements 6 |
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