Applications

Switch-mode power supplies

Features

Coated thermistor disk

Kinked leads of tinned copper wire

Wide resistance range

UL approval (E69802)

Options

Resistance tolerance <20% and alternative

lead configurations available on request

Delivery mode

Bulk (standard),

cardboard tape, reeled or in Ammo pack

Dimensional drawing

Dimensions in mm

Approx. weight 1 g

General technical data

Climatic category

(IEC 60068-1)

55/170/21

Max. power

(at 25

°C)

2.1

W

Resistance tolerance

∆R

±20

%

Rated temperature

25

°C

B value tolerance

∆B/B

±3

%

Dissipation factor

(in air)

δ

th

approx. 10

mW/K

Thermal cooling time constant

(in air)

τ

c

approx. 70

s

Heat capacity

approx. 700

mJ/K

Electrical specification and ordering codes

Ω

(0...65

°C)

A

No. of

R/T char-

acteristic

K

230 V

µF

110 V

µF

Param.

k

Param.

n

Ordering code

2.5 5.5

1201

2700

200

800

0.621

1.27

B57236S0259M000

3

5.0

1201

2700

300

1200

0.804

1.34

B57236S0309M000

5

4.5

1202

2800

300

1200

0.761

1.30

B57236S0509M000

8

3.5

1203

2900

300

1200

1.11

1.34

B57236S0809M000

10

3.5

1203

2900

300

1200

0.942

1.32

B57236S0100M000

12

3.2

1203

2900

300

1200

1.00

1.32

B57236S0120M000

16

2.9

1207

2965

300

1200

1.08

1.33

B57236S0160M000

20

2.8

1208

3065

300

1200

1.13

1.34

B57236S0200M000

25

2.5

1208

3065

300

1200

1.22

1.34

B57236S0250M000

50

1.9

1209

3165

300

1200

1.44

1.38

B57236S0500M000

80

1.6

1304

3300

400

1600

1.64

1.37

B57236S0800M000

Inrush current limiters

B57236

ICLs

S236

Page 2 of 6

Please read Important notes and

Cautions and warnings at the end of this document.