B57127P209M301 - EPCOS (TDK)

NTC thermistors for inrush current limiting

Inrush Current Limiters (ICLs)

Series/Type: P27

Ordering code: B57127P0xxxM301

Date: 2015-06-22

Version: P2

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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) B57127P0xxxM301

Series/Type: (bottom right header bar) P27

Preliminary data (optional): Preliminary data

Department: PPD VAR PD

Date: 2015-06-22

Version: P2

NTC thermistors for inrush current limiting B57127P0xxxM301

Inrush Current Limiters (ICLs) P27

Preliminary data

PPD VAR PD 2015-06-22

Please read Cautions and warnings and Page 2 of 5

Important notes at the end of this document.

Application

• Switch-mode power supplies

• Soft-start motors, e.g. in vacuum cleaners

Features

• Black coated thermistor disk

• Coating material is flame retardant (UL 94 V-0 approved)

• Kinked leads of tinned copper wire

• Lead spacing 7.5 mm

• High stability of electrical characteristic

• Terminals solderable in accordance with IEC 60068-2-20, test ta, method 1

• ICL support to fulfill the requirements according EN 61000 of power circuits

• UL approval (E69802)

• RoHS-compatible

NTC thermistors for inrush current limiting B57127P0xxxM301

Inrush Current Limiters (ICLs) P27

Preliminary data

PPD VAR PD 2015-06-22

Please read Cautions and warnings and Page 3 of 5

Important notes at the end of this document.

Drawing

1) seating plane in accordance with IEC 60717

Approx. weight: 10 g

General technical data

Climatic category (IEC 60068-1) 55/170/21

Max. power (at 25 °C) Pmax 12 W

Resistance tolerance ∆RR/RR ± 20 %

Rated temperature TR 25 °C

Dissipation factor (in air) δ

approx. 50 mW/K

Thermal cooling time constant (in air) τ

approx. 200 s

Heat capacity C

approx. 10000 mJ/K

Electrical specification and ordering codes

max

test

Max R

min

Ordering

(0...25 °C)

at 280Vac

at 240 Vac at 120 Vac Energy

(at I

max

, 25 °C)

Code

Ω A µF µF µF J Ω

0.5 30 1300 3500 16000 200 0.011 B57127P0508M301

1 30 1300 3500 16000 200 0.013 B57127P0109M301

2 23 1300 3500 16000 200 0.022 B57127P0209M301

5 20 1300 3500 16000 200 0.033 B57127P0509M301

7 17 1300 3500 16000 200 0.045 B57127P0709M301

10 15 1300 3500 16000 200 0.053 B57127P0100M301

b 31.0max mm

th 7.0 max mm

h 39.0 max mm

LL 25.0 min mm

LD 1.0 ± 0.05 mm

LS 7.5 ± 0.8 mm

NTC thermistors for inrush current limiting B57127P0xxxM301

Inrush Current Limiters (ICLs) P27

Preliminary data

PPD VAR PD 2015-06-22

Please read Cautions and warnings and Page 4 of 5

Important notes at the end of this document.

Internal construction

The above picture shows the internal construction of EPCOS ICLs.

Note: Coating may have cracks or chips due to acting mechanical force on the wire, but this does not affect the

performance of the component.

Coating

Ceramic

Metallization Solder joint

Important notes

Page 5 of 5

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.

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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.

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