B59754B120A70 EPCOS Inc, B59754B120A70 Datasheet

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PTC thermistors as inrush current limiters Leaded disks Series/Type: B5975* 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. ...

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Inrush current limiters Leaded disks Applications Inrush current limiter (charging resistor) for smoothing and DC link capacitors To replace high-power fixed resistors for capacitor charging Features Self-protecting in case of malfunction of short-circuit relay or internal short circuit of capacitor ...

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Inrush current limiters Leaded disks Reliability data Test Standard Electrical endurance, cycling Electrical endurance, IEC 60738-1 constant Damp heat IEC 60738-1 Rapid change IEC 60738-1 of temperature Vibration IEC 60738-1 Climatic sequence IEC 60738-1 Please read Cautions and warnings and ...

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Inrush current limiters Leaded disks Characteristics Minimum resistance of PTC thermistors versus applied voltage (pulsed) Switching time t versus switching current I S (measured still air) Please read Cautions and warnings and Important notes at the ...

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Inrush current limiters Leaded disks Calculation of the number of required PTC elements Number of required PTC elements (connected in parallel) as function of capacitance and charging voltage of smoothing or DC link capacitor: N Number of required PTC thermistors ...

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Inrush current limiters Leaded disks 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 ...

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Inrush current limiters Leaded disks 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. Es- pecially grease or oil must be removed. When PTC thermistors ...

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Inrush current limiters Leaded disks Symbols and terms A Area C Heat capacity th f Frequency I Current I Maximum current max I Rated current R I PTC current PTC I Residual currrent r I Residual currrent in oil (for ...

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Inrush current limiters Leaded disks t Settling time (for level sensors Rated temperature R T Sensing temperature sense T Operating temperature op T PTC temperature PTC t Response time R T Reference temperature ref T Temperature at minimum ...

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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 ...