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Identification/Classification 1
(header 1 + top left bar):
NTC thermistors for inrush current limiting
Identification/Classification 2
(header 2 + bottom left header bar):
Inrush Current Limiters (ICLs)
Ordering code: (top right header bar)
B57364S0***M0**
Series/Type: (bottom right header bar)
S364/**/M**
Preliminary data (optional):
Department:
PPD VAR PD
Date:
2021-04-22
Version:
a
NTC thermistors for inrush current limiting
Inrush Current Limiters (ICLs)
Series/Type: S364/**/M**
Ordering code: B57364S0***M0**
Date: 2021-04-22
Version: a
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TDK Electronics AG 2021. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without TDK Electronics' prior express consent is prohibited.
Page 2
Inrush current limiting, e.g. in switch-mode power supplies, soft-start motors
Climatic category (IEC 60068-1)
55/170/21
Max. power (at 25 °C)
P
5.1 W Resistance tolerance
∆RR/RR
± 20
%
Rated temperature
TR
25
°C
Dissipation factor (in air)
δth
approx. 24
mW/K
Thermal cooling time constant (in air)
τth
approx. 100
s
Heat capacity
Cth
approx. 2400
mJ/K
NTC thermistors for inrush current limiting B57364S0***M0**
Inrush Current Limiters (ICLs) S364/**/M**
Applications
Features
Leaded and coated NTC thermistors
Tinned copper wire, kinked
Coating material flame retardant to UL 94 V-0
Component marking includes the manufacturer’s logo, resistance value and data code
Highly stable electrical characteristics
Approvals
UL 1434 (file number E338926)
IEC (R
VDE (R
CQC
=2 up to 10 Ω)
25
=2 up to 10 Ω)
25
Options
Resistance tolerance <20% and alternative lead configurations available on request
Delivery mode
Bulk (standard), cardboard tape on reel or Ammo pack
General technical data
max
PPD VAR PD 2021-04-22
Please read Cautions and warnings and Page 2 of 14
Important notes at the end of this document.
Page 3
NTC thermistors for inrush current limiting B57364S0***M0**
Dimension drawings in mm
LL
25.0 min.2)
mm
LD
1.0 ±0.05
mm
LS
7.5 ±0.08
mm
1) Seating plane to IEC 60717
Approx. weight: 4 g
Inrush Current Limiters (ICLs) S364/**/M**
b 21.0 max. mm
th 7.0 max. mm
h 28.0 max. mm
2) Effective Lead length acc. taping
spec. IEC 60286-2
PPD VAR PD 2021-04-22
Please read Cautions and warnings and Page 3 of 14
Important notes at the end of this document.
Page 4
Electrical specification and ordering codes
R25
I
max1
Ct1
Ct2
R
min
Ordering code
(0...65 °C)
at 230 V AC
at 110 V AC
(at Imax, 25 °C)
Ω A
μF
μF Ω
NTC thermistors for inrush current limiting B57364S0***M0**
Inrush Current Limiters (ICLs) S364/**/M**
1 16 1000 4000 0.021 B57364S0109M0**
2 12 1000 4000 0.036 B57364S0209M0**
2.5 11 1000 4000 0.044 B57364S0259M0**
4 9.5 1000 4000 0.059 B57364S0409M0**
5 8.5 1000 4000 0.073 B57364S0509M0**
10 7.5 1000 4000 0.098 B57364S0100M0**
Table 1
16 4 1000 4000 0.268 B57364S0160M0**
30 6 1000 4000 0.167 B57364S0300M0**
40 5 1000 4000 0.230 B57364S0400M0**
50 4 1000 4000 0.333 B57364S0500M0**
120 3.5 1000 4000 0.427 B57364S0121M0**
Remark: I
& Ct1 in table 1 are tested according to UL and IEC certificat.
max1
**= Delivery mode
00=Bulk
51=Reel packing
54=Ammo packing
PPD VAR PD 2021-04-22
Please read Cautions and warnings and Page 4 of 14
Important notes at the end of this document.
Page 5
Table 2
R25
I
max2
Ct2
Ct2
R
min
Ordering code
(0...65 °C)
at 230 V AC
at 110 V AC
(at Imax, 25 °C)
Ω A
μF
μF Ω
C
t2
Test capacitance [μF]
I
max2
Max current across the NTC under test [A]
Number of cycles: 1000
NTC thermistors for inrush current limiting B57364S0***M0**
Inrush Current Limiters (ICLs) S364/**/M**
16 4 1094 4376 0.268 B57364S0160M0**
30 6 1300 5200 0.167 B57364S0300M0**
40 5 1094 4376 0.230 B57364S0400M0**
50 4 1562 6248 0.333 B57364S0500M0**
Remark: I
& Ct2 in table 2 refer to below testing method.
max2
**= Delivery mode
00=Bulk
51=Reel packing
54=Ammo packing
PPD VAR PD 2021-04-22
Please read Cautions and warnings and Page 5 of 14
Important notes at the end of this document.
Page 6
Reliability data
Lower test temperature: -55 °C
Ambient temperature: 25 ±5 °C
Ambient temperature: 25 ±5 °C
NTC thermistors for inrush current limiting B57364S0***M0**
Inrush Current Limiters (ICLs) S364/**/M**
/ R
Test Standard Test conditions
Storage at upper category
Storage in dry
heat
IEC
60068-2-2
temperature
T: 170°C
t: 1 000 h
| ∆R
(typical)
< 20 %
|
25
25
Remarks
No visible
damage
Storage in damp
heat, steady
state
Rapid change of
temperature
Endurance with
max. current
Cyclic
endurance
IEC
60068-2-78
IEC
60068-2-14
IEC
60539-1
IEC
60539-1
Temperature of air: 40°C
Relative humidity of air: 93 %
Duration: 21 days
t: 30 min
Upper test temperature: 170 °C
t: 30 min
Time to change from lower to
upper temperature: < 30 s
Number of cycles: 10
I = I
max1
or I
max2
t: 1000 h
I = I
max1
or I
max2
On-time = 1 min
Cooling time = 5 min
Number of cycles: 1000
< 20 %
< 20 %
< 20 %
< 20 %
No visible
damage
No visible
damage
No visible
damage
No visible
damage
PPD VAR PD 2021-04-22
Please read Cautions and warnings and Page 6 of 14
Important notes at the end of this document.
Page 7
NTC thermistors for inrush current limiting B57364S0***M0**
Inrush Current Limiters (ICLs) S364/**/M**
PPD VAR PD 2021-04-22
Please read Cautions and warnings and Page 7 of 14
Important notes at the end of this document.
Page 8
NTC thermistors for inrush current limiting B57364S0***M0**
Inrush Current Limiters (ICLs) S364/**/M**
Resistance versus current
0.60
0,10
Resistance [Ohm]
B57364S0100M0**V 9
B57364S0509M0**V 9
B57364S0409M0**V 9
B57364S0259M0**V 9
B57364S0209M0**V 9
B57364S0109M0**V 9
0,01
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
Current [A]
PPD VAR PD 2021-04-22
Please read Cautions and warnings and Page 8 of 14
Important notes at the end of this document.
Page 9
NTC thermistors for inrush current limiting B57364S0***M0**
Inrush Current Limiters (ICLs) S364/**/M**
Resistance versus current
3,0
2,5
B57364S0121M0**V 9
2,0
1,5
Resistance [Ohm]
1,0
0,5
0,0
0,0 1,0 2,0 3,0 4,0 5,0
Current [A]
PPD VAR PD 2021-04-22
Please read Cautions and warnings and Page 9 of 14
Important notes at the end of this document.
Page 10
NTC thermistors for inrush current limiting B57364S0***M0**
Inrush Current Limiters (ICLs) S364/**/M**
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 to +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
Solder thermistors after shipment from TDK Electronics within the time specified:
- Leaded components: 24 months
, Cl etc).
x
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. Lowohmic 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.
PPD VAR PD 2021-04-22
Please read Cautions and warnings and Page 10 of 14
Important notes at the end of this document.
Page 11
NTC thermistors for inrush current limiting B57364S0***M0**
Mounting
representations of the ordering codes are due to
Inrush Current Limiters (ICLs) S364/**/M**
When thermistors are sealed, potted or over-molded, there must be no mechanical stress
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
Ensure that adjacent materials are designed for operation at temperatures comparable to the
Make sure that inrush current limiters are adequately ventilated to avoid overheating.
Avoid contamination of thermistor surface during processing.
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.
adjacent components are placed at a sufficient distance from the thermistor to allow for proper
cooling of the NTC inrush current limiters.
surface temperature of the thermistor. Be sure that surrounding parts and materials can
withstand this temperature.
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. Lowohmic 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).
Display of ordering codes for TDK Electronics products
The ordering code for one and the same product can be represented differently in data sheets, data books,
other publications, on the company website, or in order-related documents such as shipping notes, order
confirmations and product labels. The varying
different processes employed and do not affect the specifications of the respective products.
Detailed information can be found on the Internet under www.tdk-electronics.tdk.com/orderingcodes.
PPD VAR PD 2021-04-22
Please read Cautions and warnings and Page 11 of 14
Important notes at the end of this document.
Page 12
Other related documents
NTC thermistors for inrush current limiting B57364S0***M0**
Inrush Current Limiters (ICLs) S364/**/M**
Further information completing this data sheet is listed on the TDK website at
https://product.tdk.com/en/products/protection/current/ntc-limiter/index.html
General Technical Information
Quality and Environment
Symbols and Terms
Mounting Instructions
Taping and Packing
Climatic Conditions
RoHS and SVHC/REACH Declaration
Selection Guide
Application Note
PPD VAR PD 2021-04-22
Please read Cautions and warnings and Page 12 of 14
Important notes at the end of this document.
Page 13
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. 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 we are 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 a 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 lifesaving 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.tdk-electronics.tdk.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 our General Terms and
Conditions of Supply.
7. Our manufacturing sites serving the automotive business apply the IATF 16949 standard.
The IATF certifications confirm our compliance with requirements regarding the quality
management system in the automotive industry. Referring to customer requirements and customer
specific requirements (“CSR”) TDK always has and will continue to have the policy of respecting
individual agreements. Even if IATF 16949 may appear to support the acceptance of unilateral
requirements, we hereby like to emphasize that only requirements mutually agreed upon can
and will be implemented in our Quality Management System. For clarification purposes we like
to point out that obligations from IATF 16949 shall only become legally binding if individually agreed
upon.
Page 13 of 14
Page 14
Important notes
8. The trade names EPCOS, CarXield, CeraCharge, CeraDiode, CeraLink, CeraPad, CeraPlas,
CSMP, CTVS, DeltaCap, DigiSiMic, ExoCore, FilterCap, FormFit, LeaXield, MiniBlue, MiniCell,
MKD, MKK, ModCap, MotorCap, PCC, PhaseCap, PhaseCube, PhaseMod, PhiCap, PowerHap,
PQSine, PQvar, SIFERRIT, SIFI, SIKOREL, SilverCap, SIMDAD, SiMic, SIMID, SineFormer, SIOV,
ThermoFuse, WindCap, XieldCap are trademarks registered or pending in Europe and in other
countries. Further information will be found on the Internet at
www.tdk-electronics.tdk.com/trademarks.
Release 2020-06
Page 14 of 14
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