PCF-W1206LF-02-4750-A-P-L-T 데이터 시트보기 (PDF) - TT Electronics.
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PCF-W1206LF-02-4750-A-P-L-T Datasheet PDF : 7 Pages
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Performance Data - High Power Range/Extended High Power Range
Test Parameters
Conditions
PLHroueamdcidliifsiteyion Thin Film
1000 hours rated load @ 70°C
1000hrs @ 40°C, 90 - 95%RH
NSihcohrt rteormmoveerlCoahd ip Resistors 6.25 x rated Power, or 2 x LEV, for 5 sec
High temperature operation
PTCeFmpSeerartiuerse cycle
1000 hours at 155°C
5 cycles -55°C, 150°C
Resistance to solder heat
270°C, 10 sec
Solderability
235°C, 2 sec
Performance Data - Passivated Range
Maximum change (+0.05R)
0.5%
0.5%
0.5%
0.5%
0.25%
0.2%
95% minimum coverage
Test Parameters
Conditions
Maximum change (+0.05R)
0603 to 2512
0402
Load life
1000 hours rated load @ 70°C
0.05%
0.25%
Humidity
1000hrs @ 40°C, 90 - 95%RH
0.05%
0.5%
Short term overload
6.25 x rated Power, or 2 x LEV, for 5 sec
0.02%
0.1%
High temperature operation
1000 hours at 125°C
0.05%
0.5%
Temperature cycle
5 cycles -55 C, 125°C
0.02%
0.1%
Resistance to solder heat
270°C, 10 sec
0.02%
0.1%
Solderability
235°C, 02 sec 100%
100%
95% minimum coverage
70
100%
100%
Derating Curve
125
35%
0%
Precision Surface Mount Resistors 155
0%
© Welwyn Components Limited Bedlington Northumberland NE22 7AA, UK
Telephone: +44 (0) 1670 822181 Facsimile: +44 (0) 1670 829465 Email: info@welwyn-tt.com Website: www.welwyn-tt.com
Temperature Derating
PCF Series
Derating Curve
100%
80%
60%
40%
20%
0%
0
Standard &
Passivated
High Power
Ranges
50
100
150
Ambient Temperature (°C)
03.11
Solderability
The terminations have an electroplated nickel barrier and tin coating. This ensures excellent 'leach' resistance properties and
solderability.
Packaging
PCF Resistors are supplied taped and reeled as as per IEC 286-3. Sizes 2010 and 2512 are in embossed plastic tape.
Smaller sizes are in paper tape.
Application Notes
PCF resistors are ideally suited for handling by automatic methods due to their rectangular shape and the small dimensional
tolerances. Electrical connection to a ceramic substrate or to a printed circuit board can be made by reflow or wave soldering of
wrap-around terminations.
Wrap-around terminations provide good leach properties and ensure reliable contact. Due to the robust construction, the PCF can
be immersed in the solder bath for 30 seconds at 260°C. This enables the resistor to be mounted on one side of a printed circuit
board and wire-leaded components applied on the other side.
PCF resistors themselves can operate at a maximum temperature of 125°C (see performance above) (155°C for High Power grades).
For soldered resistors, the joint temperature should not exceed 110°C. This condition is met when the stated power levels at 70°C
are used.
General Note
TT Electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
© TT Electronics plc
BI Technologies IRC Welwyn
http://www.ttelectronics.com/resistors
11.16
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