PTCLL www.vishay.com Vishay BCcomponents PTC Thermistors, Time Delay for Lighting FEATURES • Reliable lamp starting, due to well defined inrush-current generated time delay • Accurate resistance for ease of circuit design • Small size and durable • Available bulk-packed or taped-on-reel • Long life: More than 20 000 starts for a 20 W CFL lamp QUICK REFERENCE DATA PARAMETER Rated voltage (RMS) Nominal switching current Resistance at 25 °C (R25) Tolerance on R25 value Maximum overload current Iol Tripping time Operating temperature range at rated voltage VALUE 80 to 200 150 to 500 100 to 625 20 to 30 0.5 to 1.0 0.3 to 1 UNIT VRMS mA Ω % A s -20 to 105 °C • Material categorization: for definitions of compliance please see www.vishay.com/doc?99912 APPLICATIONS Fluorescent lighting and lighting ballasts for: • CFL 5 to 25 W range • TL HF-ballasts MOUNTING DESCRIPTION Positive temperature coefficient (PTC) thermistors for overload protection have proved to be the ideal electronic ballast component for increased lamp life-time. When the rectified mains is first applied, the PTC thermistor is cold, so its resistance is low. The lamp voltage will be below the necessary ignition value, so the current will flow through the cathodes, heating them to their emission temperature. At the same time, the PTC thermistor will heat up to its switch temperature, whereupon its resistance will rise rapidly, allowing the lamp voltage to reach its ignition value and light the lamp. Once the lamp is lit, the cathodes are fed by a high-frequency lamp supply, to avoid flicker and improve efficiency. The PTC thermistor plays no further part until the lamp is switched off, whereupon it is ready to resume its smooth-starting function. We supply a range of lighting PTC thermistors for this application offering a wide choice of voltage and switch times. The leads are suitable for soldering in any position. The lacquer may cover the leads up to 1.0 mm from the seating plane. ELECTRICAL DATA AND ORDERING INFORMATION R25 (Ω) MIN. MAX. SWITCH TEMPERATURE (°C) 500 185 75 225 75 750 300 125 375 125 ≈ 110 ≈ 120 ≈ 80 ≈ 105 ≈ 105 MAXIMUM PEAK VOLTAGE (4) (Vpeak) 700 700 700 900 1 000 TYPICAL (1) TRIP TIME at 25 °C ttrip at It (s) (mA) 0.4 200 0.5 300 0.7 300 0.75 300 0.85 500 CATALOG NUMBER SAP CODING PTCLL05P131TBE (2) PTCLL05P211TTE (2) PTCLL05P251TTE (2) PTCLL07P261VTE (3) PTCLL07P421WTE (3) Notes (1) Ignition time of the lamp approximately equals the tripping time. (2) Specific for CFL lamp electronic starter. (3) Specific for HF-TL ballast. (4) Highest lamp ignition voltage should be smaller than the maximum allowable peak voltage. Document Number: 29071 1 For technical questions, contact: [email protected] THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 Revision: 30-Nov-15 PTCLL www.vishay.com Vishay BCcomponents TYPICAL ELECTRONIC BALLAST CIRCUIT C Fluorescent lamp FET switch 36 kHz lamp supply L Rectified mains (310 VDC for 230 VAC mains) Cathode Cathode C FET switch C PTC Thermistor DIMENSIONS in millimeters T D T P P D P h h H3 H3 H2 d W2 H2 H0 H 1 L W0 W1 W F P0 L1 P1 d F D0 T t Dmax. Tmax. H3 L1 WEIGHT (g) FIGURES PACKAGING SPQ MATERIAL ORDERING NUMBER 5.4 4.5 10 3.5 ± 0.5 ≈ 0.33 Fig. 1 Bulk 500 PTCLL05P131TBE 5.4 4.5 9 - ≈ 0.45 Fig. 2 On tape 1500 PTCLL05P211TTE 5.4 4.5 10 - ≈ 0.45 Fig. 2 On tape 1500 PTCLL05P251TTE 7.0 5.0 12 - ≈ 0.66 Fig. 2 On tape 1500 PTCLL07P261VTE 7.0 5.0 12 - ≈ 0.66 Fig. 2 On tape 1500 PTCLL07P421WTE TAPE AND OTHER DEVICE DIMENSIONS in millimeters according IEC 60286 for tape on reel SYMBOL PARAMETER DIMENSIONS TOLERANCE d Lead diameter 0.6 ± 0.05 P Pitch between thermistors 12.7 ±1 F Lead to lead distance guaranteed between component and tape 5 +0.5 / -0.2 H2 Component body to seating plane 4 ±1 H0 Lead-wire clinch height 16 ± 0.5 Document Number: 29071 2 For technical questions, contact: [email protected] THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 Revision: 30-Nov-15 Legal Disclaimer Notice www.vishay.com Vishay Disclaimer ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other disclosure relating to any product. Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or the continuing production of any product. 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