PTC thermistors for overcurrent protection Leaded disks, coated, 12 V, 24 V Series/Type: B599*5 Date: November 2009 © EPCOS AG 2009. Reproduction, publication and dissemination of this publication, enclosures hereto and the information contained therein without EPCOS' prior express consent is prohibited.
Overcurrent protection Leaded disks, coated, 12 V, 24 V C935 ... C995 Applications Overcurrent protection Short circuit protection Dimensional drawing Features Lead-free terminals Manufacturer's logo and type designation stamped on in white Low resistance For rated currents of up to 1.
Overcurrent protection Leaded disks, coated, 12 V, 24 V C935 ... C995 Electrical specifications and ordering codes Type IR IS C935 C945 C955 C965 C975 C985 C995 mA 1800 1300 850 600 450 250 120 mA 3600 2600 1700 1200 900 500 240 ISmax Ir RR (V = Vmax) (typ.) (V = Vmax) A mA Ω 10.0 170 0.3 8.0 115 0.45 5.5 80 0.8 4.3 70 1.2 3.0 60 1.8 1.0 45 4.6 0.7 25 13 Rmin Ordering code Ω 0.2 0.3 0.5 0.7 1.1 2.7 7.
Overcurrent protection Leaded disks, coated, 12 V, 24 V C935 ... C995 Characteristics (typical) PTC resistance RPTC versus PTC temperature TPTC (measured at low signal voltage) PTC current IPTC versus PTC voltage VPTC (measured at 25 °C in still air) Switching time tS versus switching current IS (measured at 25 °C in still air) Rated current IR versus ambient temperature TA (measured in still air) Please read Cautions and warnings and Important notes at the end of this document.
Overcurrent protection Leaded disks, coated, 12 V, 24 V C935 ... C995 Characteristics (typical) PTC resistance RPTC versus PTC temperature TPTC (measured at low signal voltage) PTC current IPTC versus PTC voltage VPTC (measured at 25 °C in still air) Switching time tS versus switching current IS (measured at 25 °C in still air) Rated current IR versus ambient temperature TA (measured in still air) Please read Cautions and warnings and Important notes at the end of this document.
Overcurrent protection Leaded disks, coated, 12 V, 24 V C935 ... C995 Cautions and warnings General EPCOS thermistors are designed for specific applications and should not be used for purposes not identified in our specifications, application notes and data books unless otherwise agreed with EPCOS during the design-in-phase. Ensure suitability of thermistor through reliability testing during the design-in phase. The thermistors should be evaluated taking into consideration worst-case conditions.
Overcurrent protection Leaded disks, coated, 12 V, 24 V C935 ... C995 Mounting Electrode must not be scratched before/during/after the mounting process. Contacts and housing used for assembly with thermistor have to be clean before mounting. Especially grease or oil must be removed. When PTC thermistors are encapsulated with sealing material, the precautions given in chapter "Mounting instructions", "Sealing and potting" must be observed.
Overcurrent protection Leaded disks, coated, 12 V, 24 V C935 ...
Overcurrent protection Leaded disks, coated, 12 V, 24 V C935 ...
Important notes The following applies to all products named in this publication: 1. Some parts of this publication contain statements about the suitability of our products for certain areas of application. These statements are based on our knowledge of typical requirements that are often placed on our products in the areas of application concerned.
