PTCTZ..R....TT
www.vishay.com
Vishay BCcomponents
SMD PTC Thermistors For Overload Protection
FEATURES
•
•
•
•
•
•
Ideal for pick-and-place circuit assembly
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
QUICK REFERENCE DATA
VALUE
DESCRIPTION
Nominal
R
25
Resistance tolerance
Maximum overload current
(voltage dependent)
Non-trip current
Maximum voltage
Response time at 25 °C
and 20 W overload power
Matching
Maximum continuous
power at 25 °C
-
2
STANDARD
TYPES
(1)
2 to 500
TELECOM
TYPES
(1)
10 to 70
UNIT
%
A
mA
V
RMS
s
W
± 10; ± 15; ± 20
2 to 10
50 to 500
(at 25 °C)
16 to 400
<1
Down to 0.5
50 to 100
(at 70 °C)
220 to 600
Over-temperature/over-load protection:
• Telecom
- Central Office Switching (C.O.)
- Subscriber Terminal Equipment (T.E.)
- Set-top Box (S.B.)
- Modems
- Cable TV communications
• General industry and automotive
- Low power supplies overload protection
- Data bus protection
DESCRIPTION
The component consists of a high-performance PTC
ceramic disc mounted in a lead-frame for direct soldering
onto a printed-circuit board (PCB) or substrate. Ceramics
are covered with a protective high temperature silicone
layer.
Note
(1)
Customized products are available on request
MARKING
• All SMD PTCs are marked with a 3-digit type number
(XXX) and a date code (YYWW)
ELECTRICAL DATA AND ORDERING INFORMATION
RESISTANCE
R
25
()
10
10
40
25
15 to 20
15 to 20
20
35
50
3.3
9.4
TOL.
(%)
20
20
25
20
-
-
20
+ 15/- 20
20
25
25
MATCHING
()
V
max.
(V)
I
nt
at
25
C
(mA)
165
165
80
120
150
150
120
110
90
400
150
70
C
(mA)
100
100
50
70
100
100
70
70
60
-
100
I
t
at
25
C
(mA)
270
270
130
220
250
250
250
175
150
650
300
MAX.
TRIP-TIME
at 1 A (s)
3.0
3.0
0.8
1.3
1.5
1.5
1.4
1.0
0.8
6.0
1.8
I
max.
at V
max.
(A)
CATALOG NUMBER
SAP ORDERING
CODE
PTCTZ3NR100GTT
(2)
PTCTZ3MR100GTT
(2)
TYPE NR
MARKING
012
016
002
005
004
003
018
009
019
013
011
TELECOMMUNICATION TYPES
no
0.5
no
1
no
0.5
0.5
1
1
-
-
245
245
265
265
300
300
300
425
425
24
60
2.0
2.0
2.0
2.0
1.5
2.0
1.5
0.7
0.7
8.0
3.0
PTCTZ3NR400HTT
PTCTZ3MR250HTT
(2)
PTCTZ3NR150KTT
PTCTZ3MR150KTT
PTCTZ3MR200KTT
PTCTZ3MR350MTT
(2)
(2)
(2)
(2)
PTCTZ3MR500MTT
PTCTZ3NR339CTT
(2)
PTCTZ3NR949ETT
(2)
GENERAL INDUSTRIAL TYPES
Note
(2)
These types pass ITU-K20-21-45 telecommunication protection recommendation
Revision: 21-May-13
Document Number: 29068
1
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
PTCTZ..R....TT
www.vishay.com
PTC OUTLINES
PTC SMD ceramic size: 6.5 mm
7.2
- 0.2
3.45
± 0.15
2
0.2
1
1.2
3.6 ± 0.1
10°
max.
7.6 ± 0.25
10 ± 0.25
+ 0.6
0.6
0
0
Vishay BCcomponents
DIMENSIONS OF SOLDER LANDS
in millimeters
8.0
2
5
11
2.8
4 ± 0.2
4 ± 0.1
DIMENSIONS
in millimeters
2
1
3
MATERIAL INFORMATION
REF.
1
2
3
DESCRIPTION
Ceramic
Metallization
Leadframe
MATERIAL AND REMARKS
BaTiO
3
doped
NiCr Ag layer
(vacuum deposition)
Ni plated phosphor bronze material
covered by matte tin layer
3
2
SOLDERING CONDITIONS
This SMD thermistor is only suitable for reflow soldering, in accordance with JEDEC J-STD-020D. Soldering processes
which can be used are reflow (infrared and convection heating) and vapour phase. The maximum temperature of 260 °C
during 10 s should not be exceeded and no liquid flux should be allowed to reach the ceramic body.
Typical examples of a soldering processes that will provide reliable joints without damage, are shown below.
Reflow soldering
Vapour phase soldering
T
(°C)
300
260 °C
250
200
150
100
50
0
0
50
2 K/s
245 °C
215 °C
180 °C
130 °C
10 s
T
(°C)
10 s
40 s
300
250
215 °C
200
150
100
50
0
100
150
200
t (s)
250
0
180 °C
130 °C
100 °C
External
preheating
Internal preheating,
e.g. by infrared,
max. 2 K/s
Forced
cooling
20 s to 40 s
50
100
150
200
Typical values (solid line)
Process limits (dotted lines)
Typical values (solid line)
Process limits (dotted lines)
t (s)
250
HANDLING PRECAUTIONS
The special leadframe construction and the applied processes do not allow high handling forces on the component.
Because of the nature of PTC ceramic material the component should not be touched with bare hands, as the residue
of perspiration can influence component behaviour at high temperatures.
Handling forces vertically applied to the centre of the component should be limited to 5 N in the non-soldered condition and
to 10 N in the soldered. These forces should not be exceeded during the handling, transportation and packaging of the
soldered product.
Revision: 21-May-13
Document Number: 29068
2
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
Legal Disclaimer Notice
www.vishay.com
Vishay
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively,
“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
purpose, non-infringement and merchantability.
Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of typical
requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements
about the suitability of products for a particular application. It is the customer’s responsibility to validate that a particular
product with the properties described in the product specification is suitable for use in a particular application. Parameters
provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All
operating parameters, including typical parameters, must be validated for each customer application by the customer’s
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,
including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk. Please
contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by
any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners.
Material Category Policy
Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as RoHS-Compliant fulfill the
definitions and restrictions defined under Directive 2011/65/EU of The European Parliament and of the Council
of June 8, 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment
(EEE) - recast, unless otherwise specified as non-compliant.
Please note that some Vishay documentation may still make reference to RoHS Directive 2002/95/EC. We confirm that
all the products identified as being compliant to Directive 2002/95/EC conform to Directive 2011/65/EU.
Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as Halogen-Free follow Halogen-Free
requirements as per JEDEC JS709A standards. Please note that some Vishay documentation may still make reference
to the IEC 61249-2-21 definition. We confirm that all the products identified as being compliant to IEC 61249-2-21
conform to JEDEC JS709A standards.
Revision: 02-Oct-12
1
Document Number: 91000
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