SURFACE MOUNT TEMPERATURE SENSING wT- e QuRC THE RESISTOR PEOPLE METAL GLAZE SURFACE MOUNT THERMISTOR Meta Cla elem CHPT series (entc) ee Negative temperature coefficient (NTC) a ft Resistance ratio of 1.33 oy oe Lo high temperature Negative 0.25% per C rate of change (-2500 por -C) Ne we digiectne ce ang Superior linearity and curve tolerance Metal Glaze inherent stability and reliability Excelient solderability performance ~ ~~ 60:40 Solder over nicke: narrier CHPT SPECIFICATIONS: were gp nine guneeceemneees pes ; eee So cca epee ee teeny ~ | 22 Industry | Working Maximum Resistance Size Code*: { =Footprint . ARCType | Voltage** Voltage Range (ohms) | Tolerance (+%) B 1206 CNTC 1/8 | 200 400 500 TO 10K 2, 5, 10 * See page 3 for product dimensions, recommended solder pads, and standard packaging *NottoexceedVPxR | Typical ?a.ver Rating***: 400 mill:watts @ 25 C Resistance Ratio Characteristic (R25 C/ R125C): 1.33 Operating Temperature Range: -55 C to+150 C Curve Linearity: <3o Avg. error from -40 C to +150 C <1% Avg. error from -10 C to +130 C Typical Dissipation Constant***: 6 milliwatts/ C Typical Thermal Time Constant ***: 15 seconds *** Ratings establisned by mounting resistor on 2"x2" x0.062" thick FR-4 test board. APPLICATIONS: The CNTC Thermally Sensitive Resistor is recommended for applications where a need exists to accurately compensate for differences in ambient temperatures. to sense changes in temperature; and to contro! effects of changes in temperature. It is also recommended for applications where the need exists to sense and react to changes in current within the electrical circuit. CNTC CURVE TOLERANCE: RESISTANCE CHANGE vs TEMPERATURE CURVE TOLERANCE @ 3 SIGMA * Temperature Curve 29 Tolerance & F C (t) S 16 SO 5 __ 767 55. 7.0% 8 ao -40 40 6.0% f 29) 14 -10 2.9% (30) 77 25 0 to 194 90 3.0% (601 (40) (20) 0 20 40 60 80 1G Wu 140 160 257 1 25 4.5% | Temperature ( C} 302 150 . 5.0% | WIRE AND FILM TECHNOLOGIESQiRc THE RESISTOR PEOPLE CNTC LINEARITY*: ACTUAL vs PERFECT ren (607 Based On Average Change (40) not (20) Oo f 40 60 80 100 120 ~emnperature ( C) us Change @- Perfect Linearity From R25 C to R125C CNTC 1/8 POWER DERATING CURVE: 120 110 100 80 70 6u Relative Power HOW TO ORDER: Sample Part No. IRC Type CNTC 1/8 Temperature Coefficient -_-_----___--- 2500 Resistance Value 50 Ambient Temperature ( C) 60 70 80 4 30 CNTC 1/8 2500 1002 G 13 | | First 3 significant figures plus forth digit multiplier Example: 5000 = 500 ohms 1001 = 1000 ohms 4701 = 4700 ohms 1002 = 10000 ohms Tolerance G=2%, J=5%, K=10%o Packaging Code* ____-----_ -_- BLK = Bulk. 7 = 7" Reel. 13 = 13" Reel See page 3 for packaging details. ERROR IN PERCENT Percent Cahnge 9 (} 80) 149) (20) O 20 100 110 120 130 140 150 ; | J 40 60 20 Temperature ( C) 109 120 tele r:[9 lem Registered WIRE AND FILM TE TWN DP. . 4aeAN nm. CH NOLOGIES al. He Oa nOrAnm F0eK SURFACE MOUNT SENSING TEMPERATURE