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PDF PTCTT Data sheet ( Hoja de datos )
| Número de pieza | PTCTT | |
| Descripción | TWIN Vertical SMD PTC Thermistors | |
| Fabricantes | Vishay | |
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www.vishay.com
PTCTT Series
Vishay BCcomponents
TWIN Vertical SMD PTC Thermistors
For Telecom Overload Protection
QUICK REFERENCE DATA
PARAMETER
VALUE
Resistance value at 25 °C
10 to 50
Switching temperature
105 to 130
Maximum voltage (RMS)
240
Maximum overload current
2.5 to 8.0
Operating temperature range
at Vmax.
Maximum trip time at 1 A
-40 to 85
1.2 to 4.0
Weight
~ 1.3
UNIT
°C
VRMS
A
°C
s
g
DESCRIPTION
The component consists of two high performance PTC
ceramics mounted together on an alumina spacer cover and
with 4 lead (Pb)-free tin plated contacts. The terminations
are joined to the Ag plated ceramics by a high melting
solder.
MARKING
• All TWIN Vertical SMD PTC’s are marked with the last
3-digits of the type number (BCxxx) and a date code
(YYWW)
FEATURES
• Very small footprint, allowing to increase the
number of lines per PCB
• Matched pairs in one component, significantly
reducing the assembly time
• Narrow tracking between the 2 PTC’s over a wide
temperature range (matching at 85 °C: 2 x matching at
25 °C)
• Limited height and weight, used on high speed pick-and-
place circuit assembly
• Flat pick-up ceramic area for easy placement
• Small ceramics for faster response time
• Thermal coupled PTC’s for enhanced protection
• Small and large pitch available
• Compliant with the enhanced level requirements of
ITU - K20-21-45 edition 2003
• Suitable for lead (Pb)-bearing and lead (Pb)-free reflow
soldering
• Material categorization: For definitions of compliance
please see www.vishay.com/doc?99912
APPLICATIONS
Over-temperature/over-load protection:
• Telecom
- Telecommunications infrastructure
- PABX
- Set-top Box (S.B.)
MOUNTING
A flat pick-up area of 30 mm2 and low weight allows for fast
placement. No excessive solder paste should be used as no
solder or flux can reach the ceramic body during reflow
soldering. Not suitable for bismuth containing solder.
Typical soldering
235 °C, duration: 5 s (Lead (Pb)-bearing)
245 °C, duration: 5 s (Lead (Pb)-free)
Resistance to soldering heat
260 °C, duration: 10 s max.
ELECTRICAL DATA
R25
± 20 %
()
MATCHING
(
Vmax.
(VRMS)
25 °C
(mA)
Int at
70 °C
(mA)
85 °C
(mA)
10 0.5 240 140 85 55
20 0.5 240 90 60 40
25 0.5 240 100 60 40
35 1.0 240 100 60 40
50 1.0 240 90 50 35
Note
• All data is measured at 25 °C unless otherwise specified
It
(mA)
300
200
200
200
190
MAX.
TRIP-TIME
at 1 A
(s)
4.0
2.0
2.0
1.5
1.2
Imax.
at
Vmax.
(A)
4.0
8.0
4.0
4.0
2.5
Ires
(2 PIECES POWERED)
at Vmax.
(mA)
12.0
12.0
12.0
12.0
12.0
Revision:03-Mar-14
1 Document Number: 29088
For technical questions, contact: [email protected]
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
1 page  
www.vishay.com
Legal Disclaimer Notice
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.
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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.
Revision: 13-Jun-16
1 Document Number: 91000
5 Page | ||
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| PDF Descargar | [ Datasheet PTCTT.PDF ] | |
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