B57238-S709-M datasheet, PDF - EEWORLD Datasheet

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B57238-S709-M: DescriptionRESISTOR, TEMPERATURE DEPENDENT, NTC, 7ohm, THROUGH HOLE MOUNT; CategoryPassive components The resistor; File Size760KB，1 Pages; ManufacturerSIEMENS; Websitehttp://www.infineon.com/

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B57238-S709-M Overview

RESISTOR, TEMPERATURE DEPENDENT, NTC, 7ohm, THROUGH HOLE MOUNT

B57238-S709-M Parametric

Parameter Name	Attribute value
Maker	SIEMENS
package instruction	,
Reach Compliance Code	unknown
ECCN code	EAR99
Manufacturer's serial number	S238
Installation features	THROUGH HOLE MOUNT
Number of terminals	2
Package shape	DISK PACKAGE
Rated (AC) voltage (URac)	265 V
Rated power dissipation(P)	3.9 W
resistance	7 Ω
Resistor type	NTC THERMISTOR
surface mount	NO
Terminal shape	WIRE
Thermal sensitivity index	3065 K
Thermistor Applications	SOFT START

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Inrush Current Limiting

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

Available on tape

UL approval (E69802)

7,5

ø1

TNT0365-4

Options

Resistance tolerance < 20 % available on request

Dimensions in mm

Approx. weight 3 g

Lower/upper category temperature

Max. power at 25

°C

Resistance tolerance

Rated temperature

B value tolerance

Dissipation factor (in air)

Thermal cooling time constant (in air)

Heat capacity

max

∆

R/R

∆

B/B

– 55/+ 170

3,9

20 %

approx. 20

approx. 80

approx. 1600

°C

mW/K

mJ/K

Type

Ω

S 238/1,0/M

1,0

S 238/2,5/M

S 238/3,0/M

S 238/4,7/M

S 238/5,0/M

S 238/7,0/M

2,5

3,0

4,7

5,0

7,0

S 238/8,0/M

8,0

S 238/10/M 10

S 238/15/M 15

S 238/16/M

S 238/22/M

S 238/25/M

max

(0 … 65

°C)

11,5

8,4

7,4

6,6

6,4

6,0

5,5

5,0

4,4

4,0

3,4

No. of

25/100

R/T

char-

acteristic K

1201

2700

1202

1203

1207

1208

1209

1210

2800

2900

2965

3065

3165

3265

T1)

230 V

µF

700

T1)

110 V

µF

2800

Parameters

for

R(I)

0,70

– 1,30

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

Ordering

code

B57238-

S109-M

S309-M

S479-M

S509-M

S709-M

– 1,36 S259-M

– 1,39 S809-M

– 1,39 S100-M

– 1,40 S150-M

– 1,39 S160-M

– 1,42 S220-M

– 1,40 S250-M

1) For details on the capacitance

as well as on the parameters

and

refer to

pages 33–35.

Siemens Matsushita Components

32+3

23 max

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