!Note * This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it's specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. * This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. PTC - NTC for Surface Mounting Application R01E.pdf 06.1.25 !Note * This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it's specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. * This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. What is a Thermistor? Thermally Sensitive Resistor Characteristics of Thermistors Resistance - Temperature Characteristics Thermistor Positive Temperature (POSISTORr) Coefficient 2xR25 R25 BaTiO 3 + X Ceramics Log R PTC Negative Log R PTC Thermistor Temperature NTC Thermistor Coefficient Curie Point T R25 Mn-Ni, Mn-Co-Cu, Mn-Ni + X Ceramics NTC 25 25 T PRF15/18 Series Chip POSISTORr for Overheat Sensing PRF15/18 PTC Chip thermistors detect overheating of Hybrid ICs, Power Transistors, Power Diodes and Power ICs etc. 1. 0402 and 0603 light weight +Vcc R1 Thermal Contact RL Example Fan Motor M PRF 2. High gain simplifies circuit design 3. Free of contact noise and problems 4. Pb free plated terminations. 5. Sturdy construction resists mechanical vibration and shock. Power IC Thermal Contact Comparator Control IC R2 PRF RE Vref GND PRF15 Series Characteristics New Part Number Resistance (at +25C) Characteristics PRF15BA471QB1RC BA PRF15BB471QB1RC BB PRF15BC471QB1RC BC Sensing Temp. (at 4.7k ohm) Maximum Voltage 1255C 470ohm 50% -20 to +140C 1155C 32VDC 1055C Dimensions -20 to +130C -20 to +120C Electrode Construction Cross-sectional 0.50.05 Operating Temp. PTC Ceramic 0.1-0.4 1.00.05 0.50.05 (in mm) Nickel Barrier Sn Plating R01E.pdf 06.1.25 !Note * This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it's specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. * This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. R01E.pdf 06.1.25 PRF18 Series Characteristics Part Number Characteristics PRF18AS471QB1RB AS PRF18AR471QB1RB PRF18BA471QB1RB Sensing Temp. * (at 4.7k ohm) Resistance (at +25C) Maximum Voltage Maximum Current Operating Temp. 1455C -20 to +160C AR 1355C -20 to +150C BA 1255C * -20 to +140C PRF18BB471QB1RB BB 1155C * PRF18BC471QB1RB BC PRF18BD471QB1RB BD 955C * PRF18BE471QB1RB BE 855C * -20 to +100C PRF18BF471QB1RB BF 755C -20 to + 90C PRF18BG471QB1RB BG 655C 470 ohm 50% 1055C * * Also available with tolerance 3C 30mA -20 to +120C -20 to +110C -20 to + 80C Rating (0603) - Lead Free Terminations Type and UL1434 (except BF, BG types) New Part Number -20 to +130C 32VDC Characteristics PRF18BA473QB1RB BA Resistance (at +25C) Sensing Temp. (at 4.7k ohm) Maximum Voltage Operating Temp. 470k ohm 50% 1305C 32VDC -20 to +140C Low Current Consumption! Dimensions Electrode Construction Cross-sectional 0.80.15 PTC Ceramic 0.1-0.6 0.80.15 1.60.15 (in mm) Nickel Barrier Sn Plating Circuit Examples The POSISTORr has the following advantages over Bimetal devices. POSISTORr Bimetal 1. Noise free PRF 2. No contact problems 3. Low price POSISTORr Zener Diode The POSISTORr has the following additional advantages over Zener Diodes. PRF + 1. Reduced numbers of parts used in circuits Mounting Area Parts Zener Diode 10x10 = 100mm2 UPS Parts 1 Diode 2 Transistor 7 Resistor 1 Op. Amp. Total 11 POSISTORr 6x6 = 36mm2 UPS Parts 1 POSISTORr 1 Transistor 2 Resistor 0 Op. Amp. Total 4 2. Reduced process costs of mounting parts on PCBs 3. Reduces occupied space, helping high density PCB mounting !Note * This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it's specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. * This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. R01E.pdf 06.1.25 Markets & Applications of Overheat Sensing <Set PTC Used> PRF PC Server TV Game <Competitive Device> Overheat Sensing of FET Temperature Fuse Overheat Sensing of Power Supply --- LCD Overheat Sensing for Inverter Module of Backlight --- AC Adapter Overheat Sensing of FET --- Overheat Sensing of Case --- Power Supply DC-DC Converter Video Camera <Function of PRF> Overheat Sensing of FET AC Adapter Overheat Sensing of FET Temperature Fuse AC Adapter Overheat Sensing of PCB --- Lighting Dimmer Overheat Sensing of Power Tr Temperature Fuse Power Supply DC-DC Converter Overheat Sensing of FET --- Car Audio AMP Overheat Sensing of Power Hybrid IC --- Overheat Sensing of Case NTC Thermistor LCD Overheat Sensing for Inverter of Backlight AMP Overheat Sensing of Power Hybrid IC --- Overheat Sensing of Power Hybrid IC --- DC Brushless Motor Current Limitation & Overheat Sensing of Driver IC --- Refrigerator DC Brushless Motor Overheat Sensing of Driver IC --- PPC/Printer DC Brushless Motor Overheat Sensing of Driver IC Copy Machine Lamp Overheat Sensing of Lamp Starter Circuit Audio Air Conditioner --- PRG18/21 Series Chip POSISTORr for Overcurrent Prevention Chip THERMISTORS prevent failure of apparatus due to excess current. 1. 0603 and 0805 light weight 2. High gain simplifies circuit design 3. Free of contact noise and problems 4. Pb free plated terminations. 5. Sturdy construction resists mechanical vibration and shock. Load PTC PTC PRG Series Characteristics Ratings - Lead Free Terminations Resistance (at +25C) Maximum Voltage Maximum Current Non-operating Current (at +60C) Operating Current (at -10C) PRG21BC0R2MM1RA 0.20 ohm 20% 6VDC 10A 500mA 2000mA PRG21BC4R7MM1RA 4.7 ohm 20% 5A 100mA 400mA PRG21BC6R8MM1RA 6.8 ohm 20% 3.5A 80mA 320mA PRG21BB150MB1RK 15 ohm 20% 1.6A 40mA 140mA PRG21BB220MB1RK 22 ohm 20% 1.1A 30mA 110mA PRG18BB330MB1RB 33 ohm 20% 350mA 25mA 85mA PRG18BB470MB1RB 47 ohm 20% 300mA 20mA 75mA PRG18BB101MB1RB 100 ohm 20% 200mA 15mA 55mA PRG18BB221MB1RB 220 ohm 20% 90mA 10mA 35mA PRG18BB471MB1RB 470 ohm 20% 40mA 7mA 25mA New Part Number 20VDC 20VDC 24VDC !Note * This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it's specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. * This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. Dimensions L W T e b L PRG18BB 1.60.15 PRG21BB 2.00.2 0.80.15 1.250.2 0.1-0.6 - 0.2 min. 0.5 min. PRG21BC 2.00.2 1.250.2 0.90.2 0.2 min. 0.5 min. W e b e T (in mm) Electrode Construction Cross-sectional Multilayer Chip POSISTORr for Overcurrent Protection PTC Ceramic Nickel Barrier PRG21BC Type Sn Plating Data here are reference only. Specifications available upon request. Product to be evaluated, confirmed by the user before actual use. Description here may be revised without notice. POSISTORr Ideas From Fuse Resistor From Current Control Circuit Fuse Resistor IN OUT PRG IN PRG OUT IN OUT IN OUT FET FET Limitting Circuit Limitting Circuit Simple Auto-reset Item POSISTORr Fuse Resistor Control Circuit From Chip Resistor Safety PRG IN OUT IN FET Control Circuit OUT FET Control Circuit Down Sizing & Overcurrent Protecting Repeat Space Cost Key: Cross = Bad - Circle = Good - Triangle = Little difference Chip Resistor R01E.pdf 06.1.25 !Note * This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it's specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. * This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. R01E.pdf 06.1.25 Markets & Applications for Overcurrent Protection <Product / Use> PRG Note PC PDA <POSISTORr Function> Rechargeable Battery <Competitive Devices> Current Limitation & Overcurrent Protection for Trickle Charging Circuit Chip Resistor Current Limitation & Overcurrent Protection for Control IC Fuse Resistor Chip Resistor Mother Board et Al. Short-circuit Protection for Signal Line --- LCD Short-circuit Protection for LCD Drive Module TV Game DC-DC Converter Overcurrent Protection Circuit Using Tr Power Supply DC-DC Converter Overcurrent Protection for Output Circuit Circuit Using Tr Car Audio Signal Line Overcurrent Protection Leaded PTC Undefined Optical Sensor Short-circuit Protection for Optical Sensor Driver --- Chip NTC Thermistor NCP series 1. A common relationship between Resistance and B constant in all sizes (0201/ 0402/ 0603/ 0805) offers convenience when downsizing. 2. No lead contained (Pb free). 3. Tight resistance tolerance of 1% (Code F) available on 10k ohm (0402, 0603), 47k ohm (0603) and 100k ohm (0603) products. 4. High soldering heat resistant 5. High humidity resistant due to unique inner electrodes. Structure NCP Plated Terminations NTC Ceramic Silver Alloy Nickel Plating Dimensions L W W e L e T T (in mm) e Tin Plating NCP03 (0201 size) NCP15 (0402 size) NCP18 (0603 size) NCP21 (0805 size) 0.600.03 1.000.05 1.600.15 2.000.20 0.30.03 0.500.05 0.800.15 0.10-0.20 0.15-0.35 0.20-0.60 1.250.20 0.850.15 0.20-0.70 !Note * This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it's specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. * This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. Line-up of Plated Termination 0402 NCP15 0201 NCP03 Resistance at 25C B-Constant Part Number B-Constant Part Number B-Constant Part Number B-Constant Part Number 11 ohm 2750 K NCP03YS110* - - - - - - 22 ohm 2750 K NCP03YS220* - - 3100 K NCP15XC220* - - 33 ohm 2750 K NCP03YS330* - - 3100 K NCP15XC330* - - 47 ohm 2750 K NCP03YS470* - - 3100 K NCP15XC470* - - 68 ohm 2750 K NCP03YS680* - - 3100 K NCP15XC680* - - 100 ohm 2750 K NCP03YS101* - - 3250 K NCP15XF101* - - 150 ohm ( 3100 K NCP03XC151* - - 3250 K NCP15XF151* - - 220 ohm ( 3100 K NCP03XC221* - - 3500 K NCP15XM221* - - 330 ohm ( 3100 K NCP03XC331* - - 3500 K NCP15XM331* - - 470 ohm ( 3100 K NCP03XC471* - - 3650 K NCP15XQ471* - - 680 ohm ( 3100 K NCP03XC681* - - 3650 K NCP15XQ681* - - 1.0k ohm ( 3500 K NCP03XM102* - - 3650 K NCP15XQ102* - - 1.5k ohm ( 3500 K NCP03XM152* - - 3950 K NCP15XW152* - - NCP15XW222* - - 2.2k ohm ( 3500 K NCP03XM222* - - 3950 K 3.3k ohm ( 3500 K NCP03XM332* - - 3950 K NCP15XW332* - - 4.7k ohm ( 3500 K NCP03XM472* - - 3500 K NCP15XM472* - - 6.8k ohm 3380 K NCP03XH682* - - 3950 K NCP15XW682* - - 10k ohm 3380 K NCP03XH103* - - 3380 K NCP15XH103* 3900 K NCP15XV103* 15k ohm 3380 K NCP03XH153* - - 3950 K NCP15XW153* - - 22k ohm 3380 K NCP03XH223* - - 3950 K NCP15XW223* 4485 K NCP15WL223* 33k ohm 4250 K NCP03WF333* - - 4050 K NCP15WB333* 4485 K NCP15WL333* 47k ohm 4050 K NCP03WB473* 4485 K NCP03WL473* 4050 K NCP15WB473* 4485 K NCP15WL473* 68k ohm 4250 K NCP03WF683* 4485 K NCP03WL683* 4150 K NCP15WD683* 4485 K NCP15WL683* 100k ohm 4250 K NCP03WF104* 4485 K NCP03WL104* 4250 K NCP15WF104* 4485 K NCP15WL104* 150k ohm - - 4485 K NCP03WL154* 4500 K NCP15WM154* 4485 K NCP15WL154* 220k ohm - - 4485 K NCP03WL224* 4500 K NCP15WM224* - - 330k ohm ( 4750 K NCP03WQ334* - - - - - - 470k ohm ( 4750 K NCP03WQ474* - - 4500 K NCP15WM474* - - 680k ohm ( 4750 K NCP03WQ684* - - - - - - - - - - 1.0M ohm ( 4750 K - NCP03WQ105* - Operating Temp. -40 to +125C -40 to +125C Dissipation Constant Approx. 1.0 mW/C Approx. 1.0 mW/C P/N in End 05RL 03RC Packaging 15 kpcs./reel 10 kpcs./reel Certified UL1434 - Done - Recommended types Coming soon! * Resistance tolerance codes: F=1%, E=3%, J=5%, K=10% 10k ohm, 47k ohm, 100k ohm type have Tight Tolerance Type (1%: NCP18XH103F03RB, NCP15XH103F03RC, NCP18WB473F10RB, NCP15WB473F03RC, NCP18WF104F12RB, NCP15WF104F03RC) R01E.pdf 06.1.25 !Note * This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it's specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. * This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 0805 NCP21 0603 NCP18 Resistance at 25C B-Constant Part Number B-Constant Part Number B-Constant Part Number 11 ohm - - - - - - 22 ohm - - - - - - 33 ohm - - - - - - 47 ohm - - - - - - 68 ohm - - - - - - 100 ohm 3250 K NCP18XF101* - - - - 150 ohm 3250 K NCP18XF151* - - - - 220 ohm 3500 K NCP18XM221* - - 3500 K NCP21XM221* 330 ohm 3500 K NCP18XM331* - - - - 470 ohm 3650 K NCP18XQ471* - - 3650 K NCP21XQ471* 680 ohm 3650 K NCP18XQ681* - - - - 1.0k ohm 3650 K NCP18XQ102* - - 3650 K NCP21XQ102* 1.5k ohm 3950 K NCP18XW152* - - - - 3950 K NCP21XW222* 2.2k ohm 3950 K NCP18XW222* - - 3.3k ohm 3950 K NCP18XW332* - - - - 4.7k ohm 3500 K NCP18XM472* - - 3500 K NCP21XM472* 6.8k ohm 3950 K NCP18XW682* - - - - 10k ohm 3380 K NCP18XH103* 3900 K NCP18XV103* 3900 K NCP21XV103* 15k ohm 3950 K NCP18XW153* - - 3950 K NCP21XW153* 22k ohm 3950 K NCP18XW223* - - 3950 K NCP21XW223* 33k ohm 4050 K NCP18WB333* - - 4050 K NCP21WB333* 47k ohm 4050 K NCP18WB473* - - 4050 K NCP21WB473* 68k ohm 4150 K NCP18WD683* - - - - 100k ohm 4250 K NCP18WF104* - - 4250 K NCP21WF104* 150k ohm 4500 K NCP18WM154* - - - - 220k ohm 4500 K NCP18WM224* - - - - 330k ohm - - - - - - 470k ohm 4500 K NCP18WM474* - - - - 680k ohm - - - - - - 1.0M ohm - - - - - - Operating Temp. -40 to +125C -40 to +125C Dissipation Constant Approx. 1.0 mW/C Approx. 2.0 mW/C P/N in End 03RB 03RA Packaging 4 kpcs./reel 4 kpcs./reel Certified UL1434 Done Done Recommended types Coming soon! * Resistance tolerance codes: F=1%, E=3%, J=5%, K=10% 10k ohm, 47k ohm, 100k ohm type have Tight Tolerance Type (1%: NCP18XH103F03RB, NCP15XH103F03RC, NCP18WB473F10RB, NCP15WB473F03RC, NCP18WF104F12RB, NCP15WF104F03RC) R01E.pdf 06.1.25 !Note * This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it's specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. * This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. Popular Applications of Chip NTC LCD Power Amplifier to Antenna Ground R R LCD Controller PA Module NTC Drive voltage is compensated utilizing NTC's temperature signal. High resistance values generally required, typically 33k ohms to 470k ohms V ref R Temperature compensation of power amplifier (PA) module. LCD Contrast control. R NTC Vcc AGC Amp. Thermal Connection ROM Battery Pack (Li-Ion / Ni MH) Li-lon Ambient temperature detection of charging time. Detection of battery cell heating in abnormal circumstances. Ni MH FET IC PTC FET Thermal Connection Thermal Connection 47k ohm5% 10k ohm5% 10k ohm1% ...etc. NTC NTC More Popular Applications of Chip NTCs Personal Computer HDD Mini Disk Player Portable CD Player LCD TV PDA Pager Digital Camera VCR Camera NCP03 (0201 size) A lead of mechanical pencil (0.5mm dia.) NCP15 (0402 size) NCP18 (0603 size) NCP21 (0805 size) Mobile Phone Headphone Stereo Printer Cassette & Tuner CD Auto Changer Rechargeable Battery R01E.pdf 06.1.25 !Note * This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it's specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. * This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. R01E.pdf 06.1.25 Note: 1. Export Control For customers outside Japan No muRata products should be used or sold, through any channels, for use in the design, development, production, utilization, maintenance or operation of, or otherwise contribution to (1) any weapons (Weapons of Mass Destruction (nuclear, chemical or biological weapons or missiles) or conventional weapons) or (2) goods or systems specially designed or intended for military end-use or utilization by military end-users. For customers in Japan For products which are controlled items subject to the "Foreign Exchange and Foreign Trade Law" of Japan, the export license specified by the law is required for export. 2. Please contact our sales representatives or product engineers before using the products in this catalog for the applications listed below, which require especially high reliability for the prevention of defects which might directly damage a third party's life, body or property, or when one of our products is intended for use in applications other than those specified in this catalog. q Aircraft equipment w Aerospace equipment e Undersea equipment r Power plant equipment t Medical equipment y Transportation equipment (vehicles, trains, ships, etc.) u Traffic signal equipment i Disaster prevention / crime prevention equipment o Data-processing equipment !0 Application of similar complexity and/or reliability requirements to the applications listed above 3. Product specifications in this catalog are as of January 2006. They are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. If there are any questions, please contact our sales representatives or product engineers. 4. This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. Especially, please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in them to prevent smoking and/or burning, etc. 5. You are able to read a detailed specification in the website of Search Engine (http://search.murata.co.jp/) or catalog library (http://www.murata.com/catalog/) before to require our product specification or to transact the approval sheet for product specification. 6. Please note that unless otherwise specified, we shall assume no responsibility whatsoever for any conflict or dispute that may occur in connection with the effect of our and/or a third party's intellectual property rights and other related rights in consideration of your use of our products and/or information described or contained in our catalogs. In this connection, no representation shall be made to the effect that any third parties are authorized to use the rights mentioned above under licenses without our consent. 7. No ozone depleting substances (ODS) under the Montreal Protocol are used in our manufacturing process. < < > > http://www.murata.com/ Head Office 1-10-1, Higashi Kotari, Nagaokakyo-shi, Kyoto 617-8555, Japan Phone: 81-75-951-9111 Cat. No. R01E International Division 3-29-12, Shibuya, Shibuya-ku, Tokyo 150-0002, Japan Phone: 81-3-5469-6123 Fax: 81-3-5469-6155 E-mail: intl@murata.co.jp