B57464S0400M000

NTC thermistors for inrush current limiting B57464S 400M
Inrush Current Limiters (ICLs) S464/40/M
Data sheet
PPD VAR PD 2017-07-31
Please read Cautions and warnings and Page 10 of 12
Important notes at the end of this document.
Cautions and warnings
See "Important notes" of this data sheet.
Storage
Store thermistors only in original packaging. Do not open the package before storage.
Storage conditions in original packaging: storage temperature -25 °C ... +45 °C, relative humidity 75%
annual mean, maximum 95%, dew precipitation is inadmissible.
Avoid contamination of thermistors surface during storage, handling and processing.
Avoid storage of thermistor in harmful environments like corrosive gases (SO
x
, Cl etc).
Solder thermistors after shipment from EPCOS within the time specified:
- Leaded components: 24 months
Handling
NTC inrush current limiters must not be dropped. Chip-offs must not be caused during handling of NTC
inrush current limiters.
Components must not be touched with bare hands. Gloves are recommended.
Avoid contamination of thermistor surface during handling.
In case of exposure of the NTC inrush current limiters to water, electrolytes or other aggressive media,
these media can penetrate the coating and reach the surface of the ceramic. Low-ohmic or high-ohmic
behavior may occur due to the formation of an electrolyte with metals (silver/lead/tin from metallization or
solder). Low-ohmic behavior is caused by electrochemical migration, high-ohmic behavior by dissolving of
the electrode. In either case, the functionality of the NTC inrush current limiters can not be assured.
Washing processes may damage the product due to the possible static or cyclic mechanical loads (e.g.
ultrasonic cleaning). They may cause cracks to develop on the product and its parts, which might lead to
reduced reliability or lifetime.
Bending / twisting leads
A lead (wire) may be bent at a minimum distance of twice the wire’s diameter plus 4 mm from the
component head or housing. When bending ensure the wire is mechanically relieved at the component
head or housing. The bending radius should be at least 0.75 mm.
Twisting (torsion) by 180°of a lead bent by 90°is permissible at 6 mm from the bottom of the thermistor
body.
Soldering
Use resin-type flux or non-activated flux.
Insufficient preheating may cause ceramic cracks.
Rapid cooling by dipping in solvent is not recommended.
Complete removal of flux is recommended.
NTC thermistors for inrush current limiting B57464S 400M
Inrush Current Limiters (ICLs) S464/40/M
Data sheet
PPD VAR PD 2017-07-31
Please read Cautions and warnings and Page 11 of 12
Important notes at the end of this document.
Mounting
When thermistors are sealed, potted or over-molded, there must be no mechanical stress caused by
thermal expansion during the production process (curing/ over-molding process) and during later operation.
The upper category temperature of the thermistor must not be exceeded. Ensure that the materials used
(sealing / potting compound and plastic material) are chemically neutral.
Electrode must not be scratched before/during/after the mounting process.
Contacts and housings used for assembly with thermistor have to be clean before mounting.
During operation, the inrush current limiters surface temperature can be very high. Ensure that adjacent
components are placed at a sufficient distance from the thermistor to allow for proper cooling of the NTC
inrush current limiters.
Ensure that adjacent materials are designed for operation at temperatures comparable to the surface
temperature of the thermistor. Be sure that surrounding parts and materials can withstand this temperature.
Make sure that inrush current limiters are adequately ventilated to avoid overheating.
Avoid contamination of thermistor surface during processing.
Operation
Use NTC inrush current limiters only within the specified operating temperature range.
Use NTC inrush current limiters only within the specified voltage and current ranges.
Environmental conditions must not harm the NTC inrush current limiters. Use NTC inrush current limiters
only in normal atmospheric conditions.
Contact of NTC inrush current limiters with any liquids and solvents should be prevented. It must be
ensured that no water enters the NTC inrush current limiters (e.g. through plug terminals). For
measurement purposes (checking the specified resistance vs. temperature), the component must not be
immersed in water but in suitable liquids (e.g. Galden).
In case of exposure of the NTC inrush current limiters to water, electrolytes or other aggressive media,
these media can penetrate the coating and reach the surface of the ceramic. Low-ohmic or high-ohmic
behavior may occur due to the formation of an electrolyte with metals (silver/lead/tin from metallization or
solder). Low-ohmic behavior is caused by electrochemical migration, high-ohmic behavior by dissolving of
the electrode. In either case, the functionality of the NTC inrush current limiters can not be assured.
Be sure to provide an appropriate fail-safe function to prevent secondary product damage caused by
malfunction (e.g. use a metal oxide varistor for limitation of overvoltage condition).
)
Important notes
Page 12 of 12
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. We
nevertheless expressly point out that such statements cannot be regarded as binding
statements about the suitability of our products for a particular customer application. As a
rule, EPCOS is either unfamiliar with individual customer applications or less familiar with them
than the customers themselves. For these reasons, it is always ultimately incumbent on the
customer to check and decide whether an EPCOS product with the properties described in the
product specification is suitable for use in a particular customer application.
2. We also point out that in individual cases, a malfunction of electronic components or failure
before the end of their usual service life cannot be completely ruled out in the current state
of the art, even if they are operated as specified. In customer applications requiring a very high
level of operational safety and especially in customer applications in which the malfunction or
failure of an electronic component could endanger human life or health (e.g. in accident
prevention or life-saving systems), it must therefore be ensured by means of suitable design of the
customer application or other action taken by the customer (e.g. installation of protective circuitry
or redundancy) that no injury or damage is sustained by third parties in the event of malfunction or
failure of an electronic component.
3. The warnings, cautions and product-specific notes must be observed.
4. In order to satisfy certain technical requirements, some of the products described in this
publication may contain substances subject to restrictions in certain jurisdictions (e.g.
because they are classed as hazardous). Useful information on this will be found in our Material
Data Sheets on the Internet (www.epcos.com/material). Should you have any more detailed
questions, please contact our sales offices.
5. We constantly strive to improve our products. Consequently, the products described in this
publication may change from time to time. The same is true of the corresponding product
specifications. Please check therefore to what extent product descriptions and specifications
contained in this publication are still applicable before or when you place an order.
We also reserve the right to discontinue production and delivery of products. Consequently,
we cannot guarantee that all products named in this publication will always be available.
The aforementioned does not apply in the case of individual agreements deviating from the
foregoing for customer-specific products.
6. Unless otherwise agreed in individual contracts, all orders are subject to the current version of
the “General Terms of Delivery for Products and Services in the Electrical Industry”
published by the German Electrical and Electronics Industry Association (ZVEI).
7. The trade names EPCOS, CeraDiode, CeraLink, CeraPad, CeraPlas, CSMP, CTVS, DeltaCap,
DigiSiMic, ExoCore, FilterCap, FormFit, LeaXield, MiniBlue, MiniCell, MKD, MKK, MotorCap, PCC,
PhaseCap, PhaseCube, PhaseMod, PhiCap, PowerHap, PQSine, PQvar, SIFERRIT, SIFI,
SIKOREL, SilverCap, SIMDAD, SiMic, SIMID, SineFormer, SIOV, ThermoFuse, WindCap are
trademarks registered or pending in Europe and in other countries. Further information will be
found on the Internet at www.epcos.com/trademarks.

B57464S0400M000

Mfr. #:
Manufacturer:
EPCOS / TDK
Description:
Inrush Current Limiters S 464/40 /M NTC Thermisto
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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