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产品型号B59850T1120A062的Datasheet PDF文件预览

PTC thermistors for overcurrent  
protection in telecom applications  
Telecom Pair Protector (TPP), SMD  
Series/Type:  
Date:  
November 2009  
© EPCOS AG 2009. Reproduction, publication and dissemination of this publication, enclosures hereto and the  
information contained therein without EPCOS' prior express consent is prohibited.  
Overcurrent protection for telecom  
Telecom pair protector (TPP), SMD  
Applications  
Internal circuit  
Overcurrent protection for telecom applications  
Suitable for line card applications e.g. POTS, access  
networks, customer premises equipment (CPE) or integrated  
voice data (IVD)  
Features  
Two resistance-matched PTCs in a plastic housing  
Compliant with ITU-T standards  
basic-level lightning surges (10/700 µs)  
basic-level power induction (600 V, 1 A, 0.2 s)  
power contact criteria A/B (230 V, 15 min.)  
Compliant with GR1089 AC power contact 120 V, 25 A, 15  
min.  
Suitable for continuous connection to mains voltages of  
110/230 V AC in tripped (high-ohmic) condition  
Housing material to UL94-V0  
UL approval to UL 1434 (file number E69802) for RR 35 Ω  
Tight resistance matching maintained after switching  
Negligible resistance drift after reflow soldering or switching  
Marked with manufacturer's logo, type designation and date  
code  
RoHS-compatible  
Options  
Alternative tolerances and resistances on request  
Delivery mode  
T15** and T16**: Blister tape, 330-mm reel with 16-mm tape, taping to IEC 60286-3  
T17** and T18**: Blister tape, 380-mm reel with 24-mm tape, taping to IEC 60286-3  
General technical data  
Max. operating voltage  
Operating temperature range  
Vmax  
Top  
245  
V AC  
(V = 0)  
20/+125 °C  
Operating temperature range  
(V = 230 V)  
Top  
Vins  
0/+70  
> 3  
°C  
kV  
Insulating test voltage between PTC1 and PTC2  
Resistance matching in one housing  
Resistance matching in one housing  
Resistance matching in one housing  
for RR4.75 R2R1< 0.5  
for RR 50 Ω  
for RR = 75 Ω  
R2 R1< 1.0  
R2R1< 2.0  
Please read Cautions and warnings and  
Important notes at the end of this document.  
Page 2 of 13  
Overcurrent protection for telecom  
Telecom pair protector (TPP), SMD  
Electrical specifications and ordering codes  
RR  
RR  
IR  
IR  
IS  
ISmax  
Type  
Ordering code  
@ 25 °C @ 70 °C @ 25 °C @ 230 V AC  
%
mA  
mA  
mA  
A
Component height 7.5 mm  
T1535  
T1550  
35  
50  
+15/20 110  
70  
60  
230  
190  
2.5  
2.5  
B59535T1120A262  
B59550T1120A262  
±15  
90  
Component height 8.5 mm  
T1510  
T1525  
10  
25  
±20  
±20  
180  
130  
120  
85  
360  
260  
1.0  
2.8  
B59510T1120A062  
B59525T1120A062  
Component height 9.9 mm  
T1635  
T1650  
35  
50  
+15/20 110  
70  
60  
230  
190  
4.6  
2.5  
B59635T1120A062  
B59650T1120A062  
±15  
90  
Component height 10.5  
T1725  
T1735  
T1750  
25  
35  
50  
±20  
130  
85  
70  
60  
260  
230  
190  
2.8  
4.6  
2.5  
B59725T1120A062  
B59735T1120A062  
B59750T1120A062  
+15/20 110  
±15 90  
Component height 11.5  
T1805  
T1810  
T1825  
T1835  
T1850  
T1875  
4.75  
10  
25  
35  
50  
+15/20 160  
70  
120  
85  
70  
60  
370  
360  
260  
230  
190  
150  
1.0  
1.0  
2.8  
4.6  
2.5  
2.5  
B59805T1080A062  
B59810T1120A062  
B59825T1120A062  
B59835T1120A062  
B59850T1120A062  
B59875T1120A062  
±20  
±20  
180  
130  
+15/20 110  
±15  
±20  
90  
70  
75  
40  
Please read Cautions and warnings and  
Important notes at the end of this document.  
Page 3 of 13  
Overcurrent protection for telecom  
Telecom pair protector (TPP), SMD  
Switching times and ordering codes  
tS (typ.)  
tS (typ.)  
@ 1 A,  
230 V AC  
s
tS (typ.)  
@ 500 mA,  
230 V AC  
s
Type  
Ordering code  
@ ISmax  
230 V AC  
s
,
Component height 7.5 mm  
T1535  
T1550  
0.07  
0.05  
0.4  
0.3  
1.6  
1.1  
B59535T1120A262  
B59550T1120A262  
Component height 8.5 mm  
T1510  
T1525  
3.6  
0.2  
3.6  
1.4  
16  
6
B59510T1120A062  
B59525T1120A062  
Component height 9.9 mm  
T1635  
T1650  
0.04  
0.1  
0.8  
0.6  
3.4  
2.4  
B59635T1120A062  
B59650T1120A062  
Component height 10.5  
T1725  
T1735  
T1750  
0.3  
0.04  
0.1  
1.1  
0.8  
0.6  
4
3.4  
2.4  
B59725T1120A062  
B59735T1120A062  
B59750T1120A062  
Component height 11.5  
T1805  
T1810  
T1825  
T1835  
T1850  
T1875  
4
4
20  
B59805T1080A062  
B59810T1120A062  
B59825T1120A062  
B59835T1120A062  
B59850T1120A062  
B59875T1120A062  
3.8  
0.2  
0.06  
0.13  
0.12  
3.8  
1.5  
1.1  
0.8  
0.7  
19.0  
6.5  
4.5  
3.1  
2.6  
Please read Cautions and warnings and  
Important notes at the end of this document.  
Page 4 of 13  
Overcurrent protection for telecom  
Telecom pair protector (TPP), SMD  
Internal circuit  
Dimensional drawings in mm  
For type T1510 and T1525  
Solder pad  
For type T1535 and T1550  
Solder pad  
Please read Cautions and warnings and  
Important notes at the end of this document.  
Page 5 of 13  
Overcurrent protection for telecom  
Telecom pair protector (TPP), SMD  
Dimensional drawings in mm  
For type T1635 and T1650  
Solder pad  
For type T1725, T1735, T1750  
Solder pad  
For type T1805 ... T1875  
Solder pad  
Please read Cautions and warnings and  
Important notes at the end of this document.  
Page 6 of 13  
Overcurrent protection for telecom  
Telecom pair protector (TPP), SMD  
Reliability data  
Test  
Standard  
Test conditions  
R25/R25ꢁ  
Electrical endurance, IEC 60738-1  
cycling  
Room temperature, ISmax; Vmax  
Number of cycles: 10  
< 20%  
Electrical endurance, IEC 60738-1  
constant  
Storage at Vmax /Top,max (Vmax  
Test duration: 1000 h  
)
< 25%  
< 10%  
Damp heat  
IEC 60738-1  
IEC 60738-1  
IEC 60738-1  
Temperature of air: 40 °C  
Relative humidity of air: 93%  
Duration: 56 days  
Test according to IEC 60068-2-78  
Rapid change  
of temperature  
T1 = Top,min (0 V), T2 = Top,max (0 V)  
Number of cycles: 5  
Test duration: 30 min  
< 10%  
< 5%  
Test according to IEC 60068-2-14, Test Na  
Vibration  
Frequency range: 10 to 55 Hz  
Displacement amplitude: 0.75 mm  
Test duration: 3 × 2 h  
Test according to IEC 60068-2-6, Test Fc  
Shock  
IEC 60738-1  
IEC 60738-1  
Acceleration: 390 m/s2  
Pulse duration: 6 ms; 6 × 4000 pulses  
< 5%  
Climatic sequence  
Dry heat: T = Top,max (0 V)  
Test duration: 16 h  
< 10%  
Damp heat first cycle  
Cold: T = Top,min (0 V)  
Test duration: 2 h  
Damp heat 5 cycles  
Tests performed according to  
IEC 60068-2-30  
Please read Cautions and warnings and  
Important notes at the end of this document.  
Page 7 of 13  
Overcurrent protection for telecom  
Telecom pair protector (TPP), SMD  
ITU performance overview and test conditions  
ITU K20  
Test  
ITU K21  
Enhanced Basic  
ITU K45  
Enhanced Basic  
Basic  
Enhanced  
no.  
test level test level test level test level test level test level  
1
2
3
4
5
A
B
D
F
A
C
E
G
H
A
B
D
G
H
A
C
E
G
I
A
B
D
G
H
A
C
E
G
H
Power induction  
Power contact  
Lightning surge  
H
A
B
C
D
600 V AC, R = 600 , t = 0.2 s, criteria A  
Power induction  
Power contact  
600 V AC, R = 600 , t = 1.0 s, with GDT, criteria A  
1500 V AC, R = 200 , t = 2.0 s, with GDT, criteria A  
230 V AC, t = 15 min, R = 10 ... 1000 , criteria B  
230 V AC, t = 15 min, R = 10, 20, 40, 80, 1000 , criteria B,  
R = 160, 300, 600 , criteria A  
E
F
G
H
I
Uc(max) = 1.0 kV, R = 25 , t = 10/700 µs, without GDT, criteria A  
Uc(max) = 1.5 kV, R = 25 , t = 10/700 µs, without GDT, criteria A  
Uc(max) = 4.0 kV, R = 25 , t = 10/700 µs, with GDT, criteria A  
Uc(max) = 6.0 kV, R = 25 , t = 10/700 µs, with GDT, criteria A  
Lightning surge  
Criteria A: no damage, function must be fulfilled.  
Criteria B: no fire hazard.  
Electrical requirements according to GR1089 standard for AC power contact  
AC voltage: 120 V, 50 Hz, short circuit current 25 A, time 15 min, criteria A.  
Please read Cautions and warnings and  
Important notes at the end of this document.  
Page 8 of 13  
Overcurrent protection for telecom  
Telecom pair protector (TPP), SMD  
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 ther-  
mistors 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 hu-  
midity 75% annual mean, maximum 95%, dew precipitation is inadmissible.  
Avoid contamination of thermistors surface during storage, handling and processing.  
Avoid storage of thermistor in harmful environment with effect on function on long-term opera-  
tion (examples given under operation precautions).  
Use thermistor within the following period after delivery:  
Through-hole devices (housed and leaded PTCs): 24 months  
Motor protection sensors, glass-encapsulated sensors and probe assemblies: 24 months  
Telecom pair and quattro protectors (TPP, TQP): 24 months  
Leadless PTC thermistors for pressure contacting: 12 months  
Leadless PTC thermistors for soldering: 6 months  
SMDs in EIA sizes 3225 and 4032, and for PTCs with metal tags: 24 months  
SMDs in EIA sizes 0402, 0603, 0805 and 1210: 12 months  
Handling  
PTCs must not be dropped. Chip-offs must not be caused during handling of PTCs.  
Components must not be touched with bare hands. Gloves are recommended.  
Avoid contamination of thermistor surface during handling.  
Soldering (where applicable)  
Use rosin-type flux or non-activated flux.  
Insufficient preheating may cause ceramic cracks.  
Rapid cooling by dipping in solvent is not recommended.  
Complete removal of flux is recommended.  
Standard PTC heaters are not suitable for soldering.  
Please read Cautions and warnings and  
Important notes at the end of this document.  
Page 9 of 13  
Overcurrent protection for telecom  
Telecom pair protector (TPP), SMD  
Mounting  
Electrode must not be scratched before/during/after the mounting process.  
Contacts and housing used for assembly with thermistor have to be clean before mounting. Es-  
pecially grease or oil must be removed.  
When PTC thermistors are encapsulated with sealing material, the precautions given in chapter  
"Mounting instructions", "Sealing and potting" must be observed.  
When the thermistor is mounted, there must not be any foreign body between the electrode of  
the thermistor and the clamping contact.  
The minimum force of the clamping contacts pressing against the PTC must be 10 N.  
During operation, the thermistor’s surface temperature can be very high. Ensure that adjacent  
components are placed at a sufficient distance from the thermistor to allow for proper cooling at  
the thermistors.  
Ensure that adjacent materials are designed for operation at temperatures comparable to the  
surface temperature of thermistor. Be sure that surrounding parts and materials can withstand  
this temperature.  
Avoid contamination of thermistor surface during processing.  
Operation  
Use thermistors only within the specified temperature operating range.  
Use thermistors only within the specified voltage and current ranges.  
Environmental conditions must not harm the thermistors. Use thermistors only in normal at-  
mospheric conditions. Avoid use in deoxidizing gases (chlorine gas, hydrogen sulfide gas, am-  
monia gas, sulfuric acid gas etc), corrosive agents, humid or salty conditions. Contact with any  
liquids and solvents should be prevented.  
Be sure to provide an appropriate fail-safe function to prevent secondary product damage  
caused by abnormal function (e.g. use VDR for limitation of overvoltage condition).  
Please read Cautions and warnings and  
Important notes at the end of this document.  
Page 10 of 13  
Overcurrent protection for telecom  
Telecom pair protector (TPP), SMD  
Symbols and terms  
A
Area  
Cth  
f
Heat capacity  
Frequency  
I
Current  
Imax  
IR  
IPTC  
Ir  
Maximum current  
Rated current  
PTC current  
Residual currrent  
Ir,oil  
Ir,air  
IRMS  
IS  
Residual currrent in oil (for level sensors)  
Residual currrent in air (for level sensors)  
Root-mean-square value of current  
Switching current  
ISmax  
LCT  
N
Maximum switching current  
Lower category temperature  
Number (integer)  
Nc  
Operating cycles at Vmax, charging of capacitor  
Switching cycles at Vmax, failure mode  
Power  
Nf  
P
P25  
Pel  
Pdiss  
Rmin  
RR  
RR  
RP  
RPTC  
Rref  
RS  
R25  
R25,match  
R25  
T
Maximum power at 25 °C  
Electrical power  
Dissipation power  
Minimum resistance  
Rated resistance  
Tolerance of RR  
Parallel resistance  
PTC resistance  
Reference resistance  
Series resistance  
Resistance at 25 °C  
Resistance matching per reel/ packing unit at 25 °C  
Tolerance of R25  
Temperature  
t
Time  
TA  
Ambient temperature  
Thermal threshold time  
Ferroelectric Curie temperature  
ta  
TC  
Please read Cautions and warnings and  
Important notes at the end of this document.  
Page 11 of 13  
Overcurrent protection for telecom  
Telecom pair protector (TPP), SMD  
tE  
Settling time (for level sensors)  
Rated temperature  
TR  
Tsense  
Top  
Sensing temperature  
Operating temperature  
TPTC  
tR  
PTC temperature  
Response time  
Tref  
Reference temperature  
TRmin  
tS  
Temperature at minimum resistance  
Switching time  
Tsurf  
Surface temperature  
UCT  
V or Vel  
VRMS  
VBD  
Upper category temperature  
Voltage (with subscript only for distinction from volume)  
Root-mean-square value of voltage  
Breakdown voltage  
Vins  
Insulation test voltage  
Vlink,max  
Vmax  
Vmax,dyn  
Vmeas  
Vmeas,max  
VR  
Maximum link voltage  
Maximum operating voltage  
Maximum dynamic (short-time) operating voltage  
Measuring voltage  
Maximum measuring voltage  
Rated voltage  
VPTC  
Voltage drop across a PTC thermistor  
α
Temperature coefficient  
Tolerance, change  
Dissipation factor  
δth  
τth  
λ
Thermal cooling time constant  
Failure rate  
Lead spacing (in mm)  
Abbreviations / Notes  
Surface-mount devices  
* To be replaced by a number in ordering codes, type designations etc.  
+ To be replaced by a letter  
All dimensions are given in mm.  
The commas used in numerical values denote decimal points.  
Please read Cautions and warnings and  
Important notes at the end of this document.  
Page 12 of 13  
Important notes  
The following applies to all products named in this publication:  
1. Some parts of this publication contain statements about the suitability of our products for  
certain areas of application. These statements are based on our knowledge of typical re-  
quirements that are often placed on our products in the areas of application concerned. We  
nevertheless expressly point out that such statements cannot be regarded as binding  
statements about the suitability of our products for a particular customer application.  
As a rule, EPCOS is either unfamiliar with individual customer applications or less familiar  
with them than the customers themselves. For these reasons, it is always ultimately incum-  
bent on the customer to check and decide whether an EPCOS product with the properties de-  
scribed in the product specification is suitable for use in a particular customer application.  
2. We also point out that in individual cases, a malfunction of electronic components or  
failure before the end of their usual service life cannot be completely ruled out in the  
current state of the art, even if they are operated as specified. In customer applications  
requiring a very high level of operational safety and especially in customer applications in  
which the malfunction or failure of an electronic component could endanger human life or  
health (e.g. in accident prevention or lifesaving systems), it must therefore be ensured by  
means of suitable design of the customer application or other action taken by the customer  
(e.g. installation of protective circuitry or redundancy) that no injury or damage is sustained by  
third parties in the event of malfunction or failure of an electronic component.  
3. The warnings, cautions and product-specific notes must be observed.  
4. In order to satisfy certain technical requirements, some of the products described in this  
publication may contain substances subject to restrictions in certain jurisdictions (e.g.  
because they are classed as hazardous). Useful information on this will be found in our Ma-  
terial Data Sheets on the Internet (www.epcos.com/material). Should you have any more de-  
tailed questions, please contact our sales offices.  
5. We constantly strive to improve our products. Consequently, the products described in this  
publication may change from time to time. The same is true of the corresponding product  
specifications. Please check therefore to what extent product descriptions and specifications  
contained in this publication are still applicable before or when you place an order. We also  
reserve the right to discontinue production and delivery of products. Consequently, we  
cannot guarantee that all products named in this publication will always be available. The  
aforementioned does not apply in the case of individual agreements deviating from the fore-  
going for customer-specific products.  
6. Unless otherwise agreed in individual contracts, all orders are subject to the current ver-  
sion of the "General Terms of Delivery for Products and Services in the Electrical In-  
dustry" published by the German Electrical and Electronics Industry Association  
(ZVEI).  
7. The trade names EPCOS, BAOKE, Alu-X, CeraDiode, CSMP, CSSP, CTVS, DeltaCap,  
DSSP, MiniBlue, MiniCell, MKK, MLSC, MotorCap, PCC, PhaseCap, PhaseCube,  
PhaseMod, PhiCap, SIFERRIT, SIFI, SIKOREL, SilverCap, SIMDAD, SIMID, SineFormer,  
SIOV, SIP5D, SIP5K, ThermoFuse, WindCap are trademarks registered or pending  
in Europe and in other countries. Further information will be found on the Internet at  
www.epcos.com/trademarks.  
Page 13 of 13  
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