PTCTZ

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Vishay BCcomponents

Revision: 27-Nov-15

1

Document Number: 29068

For technical questions, contact: nlr@vishay.com

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

SMD PTC Thermistors For Overload Protection

Note

(1) Customized products are available on request in the indicated

nominal

R25 range. Larger 8 mm ceramics for lower resistance

values or higher voltages are in use in the PTCCZ08 series.

FEATURES

• Compact resettable overload protection

• Low mounting height

• Suitable for reflow soldering

• Small ceramic diameter for faster response

• Low heat transfer to substrate

• Flat terminations for stable positioning and good

solderability

• Material categorization: for definitions of compliance

please see www.vishay.com/doc?99912

APPLICATIONS

Over-temperature/over-load protection:

• Telecom

-Central Office Switching (C.O.)

-Subscriber Terminal Equipment (T.E.)

-Set-top Box

-Modems

• General industry and automotive

-Low power overload protection

-Inrush current limitation

DESCRIPTION

The component consists of a high performance PTC

ceramic mounted in a lead frame with lead (Pb)-free tin

plated contacts. The terminations are joined to the Ag plated

ceramic by a high melting solder. The ceramic is covered

with a protective high temperature silicone layer.

MARKING

• All SMD PTCs are marked with a 3-digit type number

(XXX) and a date code (YYWW)

Note

(2) These types pass ITU-K20-21-45 telecommunication protection recommendation

QUICK REFERENCE DATA

PARAMETER

VALUE

UNIT

STANDARD

TYPES (1)

TELECOM

TYPES (1)

Resistance value at 25 °C

2 to 500

10 to 70

Ω

Tolerance on

R25 value

± 10; ± 15; ± 20

%

Maximum overload current

Iol (Vmax. dependent)

2 to 10

A

Maximum holding current

(Int)

50 to 500

(at 25 °C)

50 to 100

(at 70 °C)

Maximum voltage

(RMS or DC)

16 to 400

220 to 600

VRMS

Maximum trip time at 1 A

0.8 to 6

s

Switching temperature

(Tsw)

105 to 140

°C

Operating temperature

range at max. voltage

-40 to 85

Storage temperature

-40 to 155

Maximum continuous

power at 25 °C

2W

ELECTRICAL DATA AND ORDERING INFORMATION

RESISTANCE

MATCHING

(

Ω)

Vmax.

(V)

Int at

It at

MAX.

TRIP-TIME

at 1 A (s)

MAX.

Iol at

Vmax.

(A)

Tsw

OPERATING

TEMP.

RANGE

AT MAX.

VOLTAGE

STORAGE

TEMP.

RANGE

CATALOG NUMBER

R25

(

Ω)

TOL.

(%)

25

°C

(mA)

70

°C

(mA)

25

°C

(mA)

SAP ORDERING

CODE

TYPE NR

MARKING

TELECOM AND INDUSTRIAL TYPES

10

20

-

245

165

100

270

3.0

2.0

105

0 to 70

-25 to 125 PTCTZ3NR100GTT (2)

012

10

20

0.5 

245

165

100

270

3.0

2.0

105

0 to 70

-25 to 125 PTCTZ3MR100GTT (2)

016

40

25

no

265

80

50

130

0.8

2.0

105

0 to 70

-25 to 125

PTCTZ3NR400HTT

002

25

20

1 

265

120

70

220

1.3

2.0

110

0 to 70

-25 to 125 PTCTZ3MR250HTT (2)

005

15 to 20

-

-

300

150

100

250

1.5

1.5

115

0 to 70

-25 to 125 PTCTZ3NR150KTT (2)

004

15 to 20

-

0.5 

300

150

100

250

1.5

2.0

115

0 to 70

-25 to 125 PTCTZ3MR150KTT (2)

003

20

20

0.5 

300

120

70

250

1.4

1.5

105

0 to 70

-25 to 125 PTCTZ3MR200KTT (2)

018

35

+15 / -20

1 

425

110

70

175

1.0

0.7

125

-25 to 85

-40 to 155 PTCTZ3MR350MTT (2)

009

50

20

1 

425

90

60

150

0.8

0.7

125

-40 to 70

-40 to 125

PTCTZ3MR500MTT

019

GENERAL INDUSTRIAL TYPES

3.3

25

-

24

400

-

650

6.0

8.0

140

-40 to 85

-40 to 155

PTCTZ3NR339CTT

013

9.4

25

-

60

150

100

300

1.8

3.0

115

-40 to 85

-40 to 155

PTCTZ3NR949ETT

011