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PRF18BE471RB5RB Datasheet(PDF) 84 Page - Murata Manufacturing Co., Ltd. |
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PRF18BE471RB5RB Datasheet(HTML) 84 Page - Murata Manufacturing Co., Ltd. |
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84 / 104 page  POSISTOR r for Circuit Protection Overheat Sensing Lead Type PTFM Series has been developed for protecting power transistors, stereo main amplifiers, etc. from overheating, and also for sensing the temperature of other components which may be overheated. The "POSISTOR" offers an excellent temperature sensing ability, exhibiting a steep change in electrical resistivity near the temperature setting. PTFL Series is suitable for use as an air temperature sensor. c Features 1. PTFM Series is a screw-fixing type and PTFL Series is a lead type, providing ease of mounting. 2. Compact and light design as well as excellent thermal response. 3. Solid-state construction withstands mechanical vibration and impact sufficiently. 4. Contactless operation provides a prolonged service life, yet permits noiseless operation. 5. The operating point of "POSISTOR" is set on the steepest point along the resistance-temperature characteristic curve, thus performing the overheat protective operation securely. 6. PTFM Series and PTFL Series have the same temperature characteristic, providing a selection depending on the mounting method. 3.5±1.5 4.0 max. ø0.5±0.05 (in mm) 5.0 max. PTFL Series ø0.5±0.05 t0.5±0.05 3.0±0.3 7.5±0.4 3.7±0.3 3.5±1.5 in mm PTFM Series Part Number Max. Voltage (V) Sensing Temp. (TS) (°C) Resistance Value at 25°C (max.) (ohm) Resistance Value (TS-10°C) (max.) (ohm) Resistance Value (TS°C) (min.) (ohm) PTF p4BH471Q2N34B0 16 60 100 330 470 PTF p4BG471Q2N34B0 16 70 100 330 470 PTF p4BF471Q2N34B0 16 80 100 330 470 PTF p4BE471Q2N34B0 16 90 100 330 470 PTF p4BD471Q2N34B0 16 100 100 330 470 PTF p4BC471Q2N34B0 16 110 100 330 470 PTF p4BB471Q2N34B0 16 120 100 330 470 PTF p4BH222Q2N34B0 16 60 330 1.5k 2.2k PTF p4BG222Q2N34B0 16 70 330 1.5k 2.2k PTF p4BF222Q2N34B0 16 80 330 1.5k 2.2k PTF p4BE222Q2N34B0 16 90 330 1.5k 2.2k PTF p4BD222Q2N34B0 16 100 330 1.5k 2.2k PTF p4BC222Q2N34B0 16 110 330 1.5k 2.2k PTF p4BB222Q2N34B0 16 120 330 1.5k 2.2k A blank is filled with type codes. (L: Lead type, M: with Lug-terminal) Operating temperature range is -10 to TS+10°C. Please contact us for UL recognized products. R90E.pdf Sep.24,2012 82 !Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc. • This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 14 |
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