NTC Thermistors, High Temperature Sensors

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Howard Quinn
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1 NTC Thermistrs, High Temperature Sensrs /5/8... Vishay BCcmpnents FEATURES Small diameter Quick respnse t temperature change High stability ver a lng life Wide temperature range frm 4 t +2 C Resistant t crrsive atmspheres and harsh envirnments APPLICATIONS QUICK REFERANCE DATA PARAMETER VALUE Temperature range 4 t +2 C Resistance value at 25 C 1 t 1 kω (R 25 ) Tlerance n R 25 -value ±5% and ±1% B 25/85 -value 3977 K Tlerance n B 25/85 -value ±1.3% Deviatin in resistance value due t B-tlerance Rati R T /R 25 Rated dissipatin Dissipatin factr Respnse time Thermal time cnstant τ Temperature cefficient table fr series table fr series 1 mw 2.5 mw/k.9 s 6 s table fr series table fr series Climatic categry 4/155/56 4/2/56 Mass.3 g.14 g High temperature measurement cntrl: Dmestic appliances Autmtive systems Industrial prcess cntrl DESCRIPTION These thermistrs have a negative temperature cefficient and are munted in a glass envelpe: (SOD8) withut leads and suitable fr surface munting (SOD27) with tinned cpper-clad irn leads is the bandiler versin f series MOUNTING By sldering ELECTRICAL DATA AND ORDERING INFORMATION CATALOG NUMBER R 25 (kω) B 25/85 -VALUE SOD27 (leaded) 8... tinned-cpper SOD8 (MELF) (1) 5... Nte R 25 ±1% R 25 ±5% R 25 ±1% R 25 ±5% K ±1.3% K ±1.3% K ±1.3% K ±1.3% K ±1.3% Only available in blister tape. Dcument Number: 295 Fr technical questins cntact: nlr.eurpe@vishay.cm Revisin: 1-Oct-3 99

2 /5/8... Vishay BCcmpnents NTC Thermistrs, High Temperature Sensrs DIMENSIONS in millimeters Cmpnent utline fr (SOD27). Cmpnent utline fr (SOD8). O 1.85 O.56 O min min DERATING Derating curve fr series. Derating curve fr series. P 1 P T amb ( C) T amb ( C) STABILITY AND R-T CHARACTERISTICS Stability f glass encapsulated NTCs after thermal shck test. R R.8.6 T (25 K) T (K).1 T (85 K).4 R 85 /R 85 R 25 /R cycles Fr technical questins cntact: nlr.eurpe@vishay.cm Dcument Number: Revisin: 1-Oct-3

3 NTC Thermistrs, High Temperature Sensrs /5/8... Vishay BCcmpnents STABILITY AND R-T CHARACTERISTICS 1 4 R (Ω) kω 2 kω 1 kω 1 kω T ( C) RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES FOR SERIES T per ( C) R T /R 25 R DUE TO B-TOLERANCE TC (%/K) R (see nte 1) Dcument Number: 295 Fr technical questins cntact: nlr.eurpe@vishay.cm Revisin: 1-Oct-3 11

4 /5/8... Vishay BCcmpnents NTC Thermistrs, High Temperature Sensrs RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES FOR SERIES Nte T per ( C) R T /R 25 R DUE TO B-TOLERANCE TC (%/K) R 25 (kω) (see nte 1) Replace dt in last 5-digits f catalg number by a number accrding t the fllwing list and depending n tlerance n required R 25 -value: a) 3 fr a tlerance f ±5%. b) 2 fr a tlerance f ±1%. Fr technical questins cntact: nlr.eurpe@vishay.cm Dcument Number: Revisin: 1-Oct-3

5 NTC Thermistrs, High Temperature Sensrs /5/8... Vishay BCcmpnents PACKAGING BLISTER TAPE AND REEL ( ) Blister tape 5 A K K T 1 W 1 B 1 B D 1 W F E D P P 2 P δ T δ Directin f unreeling Reel t W O U E C B A trailer leader fixing tape BLISTER TAPE AND REEL DIMENSIONS SYMBOL PARAMETER NOMINAL DIMENSIONS TOLERANCE UNIT Blister tape K verall thickness <2.5 mm POCKET A length mm B width >3.8 mm K depth mm Dcument Number: 295 Fr technical questins cntact: nlr.eurpe@vishay.cm Revisin: 1-Oct-3 13

6 /5/8... Vishay BCcmpnents NTC Thermistrs, High Temperature Sensrs SYMBOL PARAMETER NOMINAL DIMENSIONS TOLERANCE B 1 utside width <4.5 mm P pitch 4. ±.1 mm D 1 hle diameter 1. ±.1 mm FEED-HOLE D diameter 1.5 ±.1 mm P pitch 4. ±.1 mm E distance 1.75 ±.1 mm cumulative pitch errr ver 1 psitins ±.1 mm CENTRE LINE P 2 length 2. ±.5 mm F width 3.5 ±.1 mm FIXING TAPE W 1 width <5.5 mm T 1 thickness <.1 mm CARRIER TAPE mm W thickness 8. ±.2 mm δ bending <.3 mm T thickness <.4 mm Reel FLANGE A diameter 18 + mm t thickness mm W space between flanges 9.5 ±.5 mm HUB B diameter 62. ±1.5 mm C spindle hle / mm KEY SLIT E width 2. ±.5 mm U depth 4. ±.5 mm O lcatin 12 UNIT THERMISTORS ON BANDOLIER ( ).8 S L L MBC941 The cmpnents are centred s that L 1 - L 2 = 1.2 mm. The cumulative space (S) measured ver 1 spacings = 5 ±2 mm. Nte The bandlier f a 18 mm reel cntains at least 25 devices with n mre than.5% empty psitins. Three cnsecutive empty places may be fund prvided this gap is fllwed by 6 cnsecutive devices. The carrier tape starts (leader) and ends (trailer) with at least 75 empty psitins (equivalent t 3 mm); the cvering fil is at least 3 mm. In rder t fix the carrier tape a self-adhesive tape f 2 t 5 mm width is applied. Fr technical questins cntact: nlr.eurpe@vishay.cm Dcument Number: Revisin: 1-Oct-3

NTC Thermistors, Accuracy Line

NTC Thermistors, Accuracy Line N Thermistors, Accuracy Line FEATURES Accuracy over a wide temperature range High stability over a long life Excellent price/performance ratio APPLICATIONS Temperature sensing and control QUICK REFERENCE