B59095A0080B110 Datasheet B59095A0080B110 | P1-P3

PTC thermistors for overcurrent

protection in telecom applications

Leadless round disks

Series/Type:

Date: November 2009

information contained therein without EPCOS' prior express consent is prohibited.

Applications

Overcurrent protection for telecom applications

Suitable for MDF applications e.g. connectors etc.

Features

Designed for combined usage of PTC and primary protection

(e.g. gas arrester)

Suitable for continuous connection to mains voltages of

110/230 V AC in tripped (high-ohmic) condition

Matching available with narrow resistance tolerance

Tight resistance matching maintained after switching

Negligible resistance drift after soldering or switching RoHS-

compatible

Options

Alternative tolerances and resistances on request

Please read Cautions and warnings and Page 2 of 8

Important notes at the end of this document.

Overcurrent protection for telecom

Leadless round disks

Delivery mode

Packed in blister trays

General electrical data

Max. operating voltage

V

max

245

V

AC

Operating temperature range

(V = 0)

T

op

20/+125

°C

Operating temperature range

(V = 230 V)

T

op

0/+70

°C

Electrical specifications and ordering codes

1)

Type

R

Ω

∆R

R

%

R25,match

(per packing unit)

R

1

R

2

max

Ω

I

R

@

25°C

mA

I

R

@

70°C

mA

I

S

@

25°C

mA

ISmax

@

230 V AC

A

t

S

(typ.)

@ I

Smax,

230 V AC

s

Ordering code

Round disks, contacts for clamp connection

A93

4.75

±15

0.9

160

70

370

1.0

4

B59093A0080B110

A95

9.3

±10

0.4

110

50

250

0.5

12

B59095A0080B110

Round disks, contacts for solder connection

A1037

10

±15

No

140

95

300

1.0

2.0

B59037A1120B010

A1037

10

±15

1.0

140

95

300

1.0

2.0

B59037A1120B110

A1042

10

±15

1.0

150

100

300

1.0

4.0

B59042A1120B110

A1041

25

±15

1.0

100

65

200

2.8

0.2

B59041A1120B110

A1044

35

±15

1.0

90

55

180

2.8

1.15

B59044A1120B110

1) Variation of current and switching time with heat dissipation of mounting assembly must be taken into account.

Reliability data

Test

Standard

Test conditions

∆R25/R25

Electrical endurance,

cycling

IEC 60738-1

Room temperature, I

Smax

; V

max

Number of cycles: 10

< 20%

Electrical endurance,

constant

IEC 60738-1

Storage at V

max

/T

op

Test duration: 1000 h

< 25%

Damp heat

IEC 60738-1

Temperature of air: 40 °C

Relative humidity of air: 93%

Duration: 56 days

Test according to IEC 60068-2-78

< 10%

Please read Cautions and warnings and Page 3 of 8

Important notes at the end of this document.

Overcurrent protection for telecom

Leadless round disks

Dimensional drawing

Dimensions in mm

Type

∅d

max

th

max

Contacts

Round disks

A1037

6.6

1.7

for solder

connection

A1041

8.1

2.1

for solder

connection

A1042

8.1

2.1

for solder

connection

A1044

8.1

2.1

for solder

connection

A93

7.9

2.1

for clamp connection

A95

7.8

2.6

for clamp connection

Cautions and warnings

General

EPCOS thermistors are designed for specific applications and should not be used for purposes

not identified in our specifications, application notes and data books unless otherwise agreed

with EPCOS during the design-in-phase.

Ensure suitability of thermistor through reliability testing during the design-in phase. The

thermistors should be evaluated taking into consideration worst-case conditions.

Storage

Store thermistors only in original packaging. Do not open the package before storage. Storage

conditions in original packaging: storage temperature 25 °C ... +45 °C, relative humidity ≤75%

annual mean, maximum 95%, dew precipitation is inadmissible.

Avoid contamination of thermistors surface during storage, handling and processing.

B59095A0080B110

B59095A0080B110

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