Series/Type: Date: B599*5 March 2006 EPCOS 2006. Reproductio

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Series/Type: Date: B599*5 March 2006 EPCOS 2006. Reproductio

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Leaded disks, coated,
Series/Type: Date:
B599*5 March 2006
EPCOS 2006. Reproduction, publication dissemination this publication, enclosures hereto information contained therein without EPCOS' prior express consent prohibited.
Overcurrent protection Leaded disks, coated, C935 C995
Applications Overcurrent short-circuit protection Features Lead-free terminals Manufacturer's logo type designation stamped white resistance rated currents approval 1434 Vmax (file number E69802) approval (license number 104843 RoHS-compatible Options Leadless disks leaded disks without coating available request Thermistors with diameter 11.0 also available tape 60286-2) Delivery mode Cardboard strips (standard) Cardboard tape reeled Ammo pack request
Dimensional drawing
Dimensions (mm) Type C935 C945 C955 C965 C975 C985 C995 bmax 22.0 17.5 13.5 11.0 hmax 25.5 21.0 17.0 14.5 12.5 10.0
General technical data Max. operating voltage Rated voltage Switching cycles Reference temperature Tolerance Operating temperature range Operating temperature range Vmax Tref 40/+125 40/+85
(typ.) Vmax)
Please read Important notes Cautions warnings this document.
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Overcurrent protection Leaded disks, coated, C935 C995
Electrical specifications ordering codes Type ISmax Vmax) (typ.) Vmax) 10.0 0.45 Rmin Ordering code
C935 C945 C955 C965 C975 C985 C995 1800 1300
3600 2600 1700 1200
B59935C0120A070 B59945C0120A070 B59955C0120A070 B59965C0120A070 B59975C0120A070 B59985C0120A070 B59995C0120A070
Please read Important notes Cautions warnings this document.
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Overcurrent protection Leaded disks, coated, C935 C995
Reliability data Test Electrical endurance, cycling Electrical endurance, constant Damp heat Standard 60738-1 60738-1 60738-1 Test conditions Room temperature, ISmax; Vmax Number cycles: Storage Vmax /Top Test duration 1000 Temperature air: Relative humidity air: Duration: days Test according 60068-2-78 TLCT, TUCT Number cycles: Test duration: Test according 60068-2-14, Test Frequency range: Displacement amplitude: 0.75 Test duration: Test according 60028-2-6, Test Pulse shape: half-sine Acceleration: Pulse duration: pulses Test according 60068-2-29 heat: TUCT Test duration: Damp heat first cycle Cold: TLCT Test duration: Damp heat cycles Tests performed according 60068-2-30 R25/R25
Rapid change temperature
60738-1
Vibration
60738-1
Bump
60738-1
Climatic sequence
60738-1
Please read Important notes Cautions warnings this document.
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Overcurrent protection Leaded disks, coated, C935 C995
Characteristics (typical) resistance RPTC versus temperature TPTC (measured signal voltage) current IPTC versus voltage VPTC (measured still air)
Switching time versus switching current (measured still air)
Rated current versus ambient temperature (measured still air)
Please read Important notes Cautions warnings this document.
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Overcurrent protection Leaded disks, coated, C935 C995
Characteristics (typical) resistance RPTC versus temperature TPTC (measured signal voltage) current IPTC versus voltage VPTC (measured still air)
Switching time versus switching current (measured still air)
Rated current versus ambient temperature (measured still air)
Please read Important notes Cautions warnings this document.
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Overcurrent protection Leaded disks, coated, C935 C995
Cautions warnings General EPCOS thermistors designed specific applications should used purposes identified specifications, application notes data books unless otherwise agreed with EPCOS during design-in-phase. Ensure suitability thermistor through reliability testing during design-in phase. thermistors should evaluated taking into consideration worst-case conditions. Storage Store thermistors only original packaging. open package before storage. Storage conditions original packaging: storage temperature relative humidity annual mean, maximum 95%, precipitation inadmissible. Avoid contamination thermistors surface during storage, handling processing. Avoid storage thermistor harmful environment with effect function long-term operation (examples given under operation precautions). thermistor within months after delivery. Handling PTCs must dropped. Chip-offs must caused during handling PTCs. Components must touched with bare hands. Gloves recommended. Avoid contamination thermistor surface during handling. Soldering rosin-type flux non-activated flux. Insufficient preheating cause ceramic cracks. Rapid cooling dipping solvent recommended. Complete removal flux recommended. Mounting Electrode must scratched before/during/after mounting process. Contacts housing used assembly with thermistor have clean before mounting. Especially grease must removed. When thermistors encapsulated with sealing material, precautions given chapter "Mounting instructions", "Sealing potting" must observed. When thermistor mounted, there must foreign body between electrode thermistor clamping contact. minimum force clamping contacts pressing against must During operation, thermistor's surface temperature very high. Ensure that adjacent components placed sufficient distance from thermistor allow proper cooling thermistors. Ensure that adjacent materials designed operation temperatures comparable surface temperature thermistor. sure that surrounding parts materials withstand this temperature. Avoid contamination thermistor surface during processing.
Please read Important notes Cautions warnings this document.
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Overcurrent protection Leaded disks, coated, C935 C995
Operation thermistors only within specified temperature operating range. thermistors only within specified voltage current ranges. Environmental conditions must harm thermistors. thermistors only normal atmospheric conditions. Avoid deoxidizing gases (chlorine gas, hydrogen sulfide gas, ammonia gas, sulfuric acid etc), corrosive agents, humid salty conditions.Contact with liquids solvents should prevented. sure provide appropriate fail-safe function prevent secondary product damage caused abnormal function (e.g. limitation overvoltage condition).
Please read Important notes Cautions warnings this document.
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Important notes
following applies products named this publication: Some parts this publication contain statements about suitability products certain areas application. These statements based knowledge typical requirements that often placed products areas application concerned. nevertheless expressly point that such statements cannot regarded binding statements about suitability products particular customer application. rule, EPCOS either unfamiliar with individual customer applications less familiar with them than customers themselves. these reasons, always ultimately incumbent customer check decide whether EPCOS product with properties described product specification suitable particular customer application. also point that individual cases, malfunction passive electronic components failure before their usual service life cannot completely ruled current state art, even they operated specified. customer applications requiring very high level operational safety especially customer applications which malfunction failure passive electronic component could endanger human life health (e.g. accident prevention life-saving systems), must therefore ensured means suitable design customer application other action taken customer (e.g. installation protective circuitry redundancy) that injury damage sustained third parties event malfunction failure passive electronic component. warnings, cautions product-specific notes must observed. order satisfy certain technical requirements, some products described this publication contain substances subject restrictions certain jurisdictions (e.g. because they classed "hazardous"). Useful information this will found Material Data Sheets Internet (www.epcos.com/material). Should have more detailed questions, please contact sales offices. constantly strive improve products. Consequently, products described this publication change from time time. same true corresponding product specifications. Please check therefore what extent product descriptions specifications contained this publication still applicable before when place order. also reserve right discontinue production delivery products. Consequently, cannot guarantee that products named this publication will always available. Unless otherwise agreed individual contracts, orders subject current version "General Terms Delivery Products Services Electrical Industry" published German Electrical Electronics Industry Association (ZVEI). trade names EPCOS, EPCOS-JONES, Baoke, CeraDiode, CSSP, MLSC, PhaseCap, PhaseMod, SIFI, SIKOREL, SilverCap, SIMID, SIOV, SIP5D, SIP5K, UltraCap, WindCap trademarks registered pending Europe other countries. Further information will found Internet www.epcos.com/trademarks.
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Series/Type: Date: B599*5 March 2006 EPCOS 2006. Reproductio

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