B57238S0309M055 datasheet, PDF

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B57238S0309M055: DescriptionRESISTOR, TEMPERATURE DEPENDENT, NTC, 3ohm, THROUGH HOLE MOUNT, RADIAL LEADED; CategoryPassive components The resistor; File Size63KB，3 Pages; ManufacturerTDK Corporation; Websitehttp://www.tdk.com; Environmental Compliance

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B57238S0309M055 Overview

RESISTOR, TEMPERATURE DEPENDENT, NTC, 3ohm, THROUGH HOLE MOUNT, RADIAL LEADED

B57238S0309M055 Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Objectid	1946712847
package instruction	,
Reach Compliance Code	compliant
ECCN code	EAR99
YTEOL	2
JESD-609 code	e3
Installation features	THROUGH HOLE MOUNT
Number of terminals	2
Maximum operating temperature	170 °C
Minimum operating temperature	-55 °C
Package shape	DISK PACKAGE
method of packing	AMMO PACK
Rated power dissipation(P)	3.9 W
resistance	3 Ω
Resistor type	NTC THERMISTOR
surface mount	NO
Terminal surface	Tin (Sn)
Terminal location	RADIAL
Terminal shape	WIRE
Thermal sensitivity index	2900 K
Thermistor Applications	SOFT START
Tolerance	20%

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Inrush Current Limiters

B57238

S 238

Applications

Switch-mode power supplies

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

16 max

7 max

Features

Useable in series connections up to 265 V

rms

Coated thermistor disk for line applications

Kinked leads of tinned copper wire

Wide resistance range

UL approval (E69802)

7,5

ø1

Options

Resistance tolerance < 20 % available on request

Delivery mode

Bulk (standard), cardboard tape, reeled or in Ammo pack

TNT0365-4

Dimensions in mm

Approx. weight 3 g

Climatic category (IEC 60068-1)

Max. power at 25

Resistance tolerance

Rated temperature

value tolerance

Dissipation factor (in air)

Thermal cooling time constant (in air)

Heat capacity

max

∆

B/B

55/170/56

3,9

20 %

approx. 20

approx. 80

approx. 1600

mW/K

mJ/K

Ω

2,5

3,0

4,7

5,0

7,0

8,0

max

No. of

(0 … 65

R/T

char-

acteristic

8,4

7,4

6,6

6,4

6,0

5,5

5,0

4,4

4,0

3,4

1202

1203

1207

1208

1209

1210

25/100

2800

2900

2965

3065

3165

3265

T1)

Parameters for

230 V 110 V

R(I)

700

2800

0,98

1,04

1,20

1,23

1,34

1,40

1,50

1,67

1,69

1,84

1,88

– 1,36

– 1,37

– 1,38

– 1,39

– 1,40

– 1,39

– 1,42

– 1,40

Ordering code

B57238S0259M000

B57238S0309M000

B57238S0479M000

B57238S0509M000

B57238S0709M000

B57238S0809M000

B57238S0100M000

B57238S0150M000

B57238S0160M000

B57238S0220M000

B57238S0250M000

1) For details on the capacitance

as well as on the parameters

and

refer to “Application Notes”, pages 40 – 42.

138

05/02

32+3

23 max

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