Precision Thin Film
Nichrome Chip Resistors
PCF Series
Precisionthinlmtechnology
Extendedohmicrange1R-3M
Precisionto±0.01%and2ppm/°C
Passivatedrangeforsuperiorhumidityperformance
Loadlifestabilityandhumidityto0.05%
Pb-freestandardwithSnPbopon
AEC-Q200gradeavailable
Resistors
Electrical Data - Standard Range
Type TCR (ppm/°C) Power (W) Liming Element
Voltage (V)
OhmicValueRange1
1%&0.5% 0.25% 0.1% 0.05% 0.01%
PCF0201 50 0.031 15 49R9-33K -
25 49R9-5K
PCF0402
50
0.063 25
10R-205K -
25
15
-
49R9-70K 49R9-12K
10 49R9-12K
5 49R9-5K 49R9-3K
349R9-4K99
2
PCF0603
50
0.063 50
2R-1M 4R7-1M
4R7-332K -
25
15
-
4R7-332K
10
5 24R9-15K 24R9-100K
324R9–15K
2
PCF0805
50
0.1 100
1R-2M 4R7-2M 24R9-200K -
25
15
-
4R7-511K -24R9-200K
10 24R9-200K
5
24R9-30K3
2
PCF1206
50
0.125 150
1R-2M5 4R7-2M5
4R7-1M
-
25
15
-
4R7–1M 24R9-500K
10
5
24R9-49K93
2
PCF1210
50
0.2 150
1R-2M5 4R7-2M5
-
25
15
-
4R7–1M
10
5
24R9-50K3
2
PCF2010
50
0.25 150
1R-3M 4R7-3M
4R7-1M
-
25
15
-
4R7-1M 24R9-500K
10
5
24R9-100K3
2
PCF2512
50
0.5 150
1R–3M 4R7-3M
4R7-1M
-
25
15
-
4R7-1M 24R9-500K
10
5
24R9-100K3
2
06.18
General Note
TT Electronics reserves the right to make changes in product specication 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
www.ttelectronics.com/resistors
BI Technologies IRC Welwyn
Note1:StandardvaluesE24orE96.Othervaluesmaybeavailablebyrequest.
AllPb-freepartscomplywithEUDirecve2011/65/EUamendedby(EU)2015/863(RoHS3)AllPb-freepartscomplywithEUDirecve2011/65/EUamendedby(EU)2015/863(RoHS3)
Precision Thin Film
Nichrome Chip Resistors
PCF Series
Type TCR
(ppm/ºC)
Power
(W)
Limiting
Element
Voltage (V)
Ohmic Value Range *
1% 0.5% 0.25% 0.1% 0.05%
PCF0402…A 50 0.063 25 49R9 – 100K 49R9 – 10K
25
PCF0603…A 50 0.063 50 10R – 332K 10R – 49K9
25
PCF0805…A 50 0.1 100
10R – 1M0
10R – 100K
25
PCF1206…A 50 0.125 150 10R – 200K
25
PCF1210…A 50 0.25 150
10R – 499K
25
PCF2010…A 50 0.25 150
25
PCF2512…A 50 0.5 150
25
Electrical Data - AEQ-Q200 Grade - Standard Range
* Standard values E24 or E96.
06.18
General Note
TT Electronics reserves the right to make changes in product specication 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
www.ttelectronics.com/resistors
BI Technologies IRC Welwyn
Electrical Data – High Power Range
Type TCR (ppm/°C) Power (W) Liming Element
Voltage (V)
OhmicValueRange *
0.5% 0.25% 0.1% 0.05% 0.01%
PCF0603H
50
0.1 75
4R7-1M
4R7-332K 24R9-100K
25
15 4R7-332K
10
5 24R9-15K
3- 24R9-15K
2
PCF0805H
50
0.125 150
1R-1M 4R7-1M
4R7-511K 24R9-200K
25
15 4R7-332K
10 4R7-511K
5 24R9-30K
3- 24R9-30K
2
PCF1206H
50
0.25 200
4R7-1M 24R9-500K
25
15
10
5 24R9-50K
3- 24R9-49K9
2
PCF1210H
50
0.33 200
4R7-1M 24R9-500K
25
15
10
5 24R9-50K
3- 24R9-49K9
2
PCF2010H
50
0.33 200
4R7-1M 24R9-500K
25
15
10
5 24R9-50K
3- 24R9-49K9
2
PCF2512H
50
0.75 200 1R-2K 4R7-2K 24R9-2K
25
15
10
*StandardvaluesE24orE96.Othervaluesmaybeavailablebyrequest.
Precision Thin Film
Nichrome Chip Resistors
PCF Series
Construction
A thin-film material is selectively deposited on a 96% alumina substrate together with metallic contacts at each end of the resistor.
The unadjusted resistors are heat treated to give the required TCR and stability, then a precisely controlled laser trim process adjusts
the resistance value. Epoxy protection is applied and wrap-around terminations are added and plated with Nickel then Tin. Each
resistor is measured immediately before packing into tape.
Terminations
The chips are supplied with 100% Sn matte plated wrap-around terminations suitable for soldering.
* Standard values E24 or E96. Other values may be available by request.
Precision Surface Mount Resistors
W
0.3 ± 0.05
0.5 ± 0.05
0.8 ± 0.2
1.25 ± 0.2
1.6 ± 0.2
2.6 ± 0.2
2.4 ± 0.2
3.1 ± 0.2
L
0.6 ± 0.05
1.0 ± 0.05
1.6 ± 0.2
2.0 ± 0.2
3.2 ± 0.2
3.2 ± 0.2
4.9 ± 0.2
6.3 ± 0.2
Tmax
0.26
0.40
0.55
0.65
0.65
0.50
0.65
0.65
A
0.12 ± 0.05
0.2 ± 0.1
0.3 ± 0.2
0.4 ± 0.2
0.5 ± 0.2
0.45 ± 0.2
0.5 ± 0.2
0.5 ± 0.2
C
0.12 ± 0.05
0.2 ± 0.1
0.3 ± 0.2
0.4 ± 0.2
0.5 ± 0.2
0.5 ± 0.2
0.6 ± 0.2
0.6 ± 0.2
T
W
A
A
L
Wrap-around terminations
(3 faces)
C
0201
0402
0603
0805
1206
1210
2010
2512
Dimensions (mm) & Weight (mg)
Wt
1
3
6
9
20
25
36
55
PCF Series
Physical Data
Electrical Data - High Power Range
Electrical Data - Passivated Range
Type TCR
(ppm/ºC)
Power
(W)
Limiting Element
Voltage (V)
Ohmic Value Range
0.5% 0.25% 0.1% 0.05% 0.01%
PCF0603H
50
0.1 75 4R7-332K 24R9-100K
25
15
10
5 24R9-15K
PCF0805H
50
0.125 150
4R7-1M 4R7-511K 24R9-200K
25
15
10 4R7-511K
5 24R9-30K
PCF1206H
50
0.25 200 4R7-1M 24R9-500K
25
15
10
5 24R9-50K
PCF1210H
50
0.33 200 4R7-1M 24R9-500K
25
15
10
5 24R9-50K
Type TCR
(ppm/ºC)
Power
(W)
Limiting Element
Voltage (V)
Ohmic Value Range *
0.5% 0.25% 0.1% 0.05% 0.01%
PCF0402P
50
0.063 25 25R-25K
25
15 49R9-12K
PCF0603P
50
0.063 50 25R-332K
25
15 25R-100K
PCF0805P
50
0.1 100 10R-800K
25
15 25R-200K
PCF1206P
50
0.125 150 10R-1M
25
15 25R-500K
PCF2010P
50
0.25 150 10R-1M
25
15 25R-500K
PCF2512P
50
0.5 150 10R-1M
25
15 25R-500K
Type TCR
(ppm/ºC)
Power
(W)
Limiting
Element
Voltage (V)
Ohmic Value Range *
0.5% 0.25% 0.1% 0.05% 0.01%
PCF0603H
50
0.1 75
4R7-1M
4R7-332K 24R9-100K
25
15 4R7-332K
10
524R9-15K
PCF0805H
50
0.125 150
1R-1M 4R7–1M
4R7-511K 24R9-200K
25
15 4R7-1M
10 4R7-511K
524R9-30K
PCF1206H
50
0.25 200 4R7-1M 24R9-500K
25
15
10
524R9-50K
PCF1210H
50
0.33 200 4R7-1M 24R9-500K
25
15
10
524R9-50K
PCF2010H
50
0.33 200 4R7-1M 24R9-500K
25
15
10
524R9-50K
PCF2512H
50
0.75 200 1R-2K 4R7-2K 24R9-2K
25
15
10
Type TCR
(ppm/ºC)
Power
(W)
Limiting Element
Voltage (V)
Ohmic Value Range *
0.5% 0.25% 0.1%
PCF0402P
50
0.063 25 25R-25K
25
15 49R9-12K
PCF0603P
50
0.063 50 25R-332K
25
15
PCF0805P
50
0.1 100 10R - 1M
25
15
PCF1206P
50
0.125 150 10R-1M
25
15
PCF2010P
50
0.25 150 10R - 1M5
25
15 25R - 1M
PCF2512P
50
0.5 150 10R - 1M5
25
15 25R - 1M
Type TCR
(ppm/ºC)
Power
(W)
Limiting
Element
Voltage
(V)
Ohmic Value Range *
0.5% 0.25% 0.1% 0.05% 0.01%
PCF0603X 50 0.166 100 10R-332K
25
PCF0805X 50 0.25 150 10R-500K
25
PCF1206X 50 0.333 200 10R-1M
25
PCF2512X 50 1 200 1R-100R 4R7-100R
25
* Standard values E24 or E96. Other values may be available by request.
Electrical Data - High Power Range
Electrical Data - Extended High Power Range
Electrical Data - Passivated Range
* Standard values E24 or E96. Other values may be available by request.
Type TCR
(ppm/ºC)
Power
(W)
Limiting
Element
Voltage (V)
Ohmic Value Range *
1% 0.5% 0.25% 0.1% 0.05%
PCF0603H…A 50 0.1 75 10R – 332K 10R – 49K9
25
PCF0805H…A 50 0.125 150
10R – 1M0
10R – 100K
25
PCF1206H…A 50 0.25 200 10R – 200K
25
PCF1210H…A 50 0.33 200
10R – 499K
25
PCF2010H…A 50 0.33 200
25
Electrical Data - AEQ-Q200 Grade – High Power Range
06.18
General Note
TT Electronics reserves the right to make changes in product specication 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
www.ttelectronics.com/resistors
BI Technologies IRC Welwyn
Precision Thin Film
Nichrome Chip Resistors
PCF Series
Precision Surface Mount Resistors
03.11
© 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
PCF Series
>0.05% tolerance
0603 to 2512
0.25%
0.3%
0.5%
0.25%
0.1%
0.2%
Load life
Humidity
Short term overload
High temperature operation
Temperature cycle
Resistance to solder heat
Solderability
Maximum change (+0.05R)
Chip size
0201, 0402
0.5%
0.3%
0.5%
0.25%
0.1%
0.2%
≤0.05% tolerance
0603 to 2512
0.05%
0.05%
0.05%
0.25%
0.05%
0.05%
ConditionsTest Parameters
1000 hours rated load @ 70°C
1000 hours @ 40°C, 90 - 95%RH
6.25 x rated Power , or 2 x LEV, for 5 sec
1000 hours at 125°C
5 cycles -55 C, 125°C
270°C, 10 sec
235°C, 2 sec 95% minimum coverage
0.5%
0.5%
0.5%
0.5%
0.25%
0.2%
95% minimum coverage
Load life
Humidity
Short term overload
High temperature operation
Temperature cycle
Resistance to solder heat
Solderability
Maximum change (+0.05R)ConditionsTest Parameters
1000 hours rated load @ 70°C
1000hrs @ 40°C, 90 - 95%RH
6.25 x rated Power, or 2 x LEV, for 5 sec
1000 hours at 155°C
5 cycles -55°C, 150°C
270°C, 10 sec
235°C, 2 sec
0603 to 2512
0.05%
0.05%
0.02%
0.05%
0.02%
0.02%
Load life
Humidity
Short term overload
High temperature operation
Temperature cycle
Resistance to solder heat
Solderability
Maximum change (+0.05R)ConditionsTest Parameters
1000 hours rated load @ 70°C
1000hrs @ 40°C, 90 - 95%RH
6.25 x rated Power, or 2 x LEV, for 5 sec
1000 hours at 125°C
5 cycles -55 C, 125°C
270°C, 10 sec
235°C, 2 sec 95% minimum coverage
0402
0.25%
0.5%
0.1%
0.5%
0.1%
0.1%
Performance Data - Standard Range
Performance Data - High Power Range
Performance Data - Passivated Range
Construction
A thin-film material is selectively deposited on a 96% alumina substrate together with metallic contacts at each end of the resistor.
The unadjusted resistors are heat treated to give the required TCR and stability, then a precisely controlled laser trim process adjusts
the resistance value. Epoxy protection is applied and wrap-around terminations are added and plated with Nickel then Tin. Each
resistor is measured immediately before packing into tape.
Terminations
The standard termination is 100% Sn matte plated wrap-around suitable for soldering. SnPb plated option is available for standard
range PCF over the restricted range below.
Physical Data
Dimensions (mm) and Weight (mg)
L W T max A C Wt
0201 0.58 0.05 0.29 0.05 0.26 0.15 0.05 0.12 0.05 0.14
0402 1.0 0.1 0.5 0.05 0.55 0.25 0.15 0.2 0.15 0.54
0603 1.6 0.2 0.8 0.2 0.65 0.35 0.25 0.3 0.2 1.8
0805 2.0 0.2 1.25 0.2 0.65 0.4 0.25 0.3 0.2 4.7
1206 3.05 0.15 1.55 0.15 0.65 0.35 0.25 0.42 0.2 9.0
1210 3.10 0.15 2.5 0.25 0.65 0.55 0.25 0.4 0.3 10
2010 4.9 0.2 2.4 0.25 0.65 0.55 0.3 0.6 0.3 24
2512 6.3 0.2 3.1 0.25 0.65 0.7 0.45 0.6 0.3 38
T
W
A
A
L
Wrap-around terminations
(3 faces)
C
Precision Surface Mount Resistors
03.11
© 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
PCF Series
>0.05% tolerance
0603 to 2512
0.25%
0.3%
0.5%
0.25%
0.1%
0.2%
Load life
Humidity
Short term overload
High temperature operation
Temperature cycle
Resistance to solder heat
Solderability
Maximum change (+0.05R)
Chip size
0201, 0402
0.5%
0.3%
0.5%
0.25%
0.1%
0.2%
≤0.05% tolerance
0603 to 2512
0.05%
0.05%
0.05%
0.25%
0.05%
0.05%
ConditionsTest Parameters
1000 hours rated load @ 70°C
1000 hours @ 40°C, 90 - 95%RH
6.25 x rated Power , or 2 x LEV, for 5 sec
1000 hours at 125°C
5 cycles -55 C, 125°C
270°C, 10 sec
235°C, 2 sec 95% minimum coverage
0.5%
0.5%
0.5%
0.5%
0.25%
0.2%
95% minimum coverage
Load life
Humidity
Short term overload
High temperature operation
Temperature cycle
Resistance to solder heat
Solderability
Maximum change (+0.05R)ConditionsTest Parameters
1000 hours rated load @ 70°C
1000hrs @ 40°C, 90 - 95%RH
6.25 x rated Power, or 2 x LEV, for 5 sec
1000 hours at 155°C
5 cycles -55°C, 150°C
270°C, 10 sec
235°C, 2 sec
0603 to 2512
0.05%
0.05%
0.02%
0.05%
0.02%
0.02%
Load life
Humidity
Short term overload
High temperature operation
Temperature cycle
Resistance to solder heat
Solderability
Maximum change (+0.05R)ConditionsTest Parameters
1000 hours rated load @ 70°C
1000hrs @ 40°C, 90 - 95%RH
6.25 x rated Power, or 2 x LEV, for 5 sec
1000 hours at 125°C
5 cycles -55 C, 125°C
270°C, 10 sec
235°C, 2 sec 95% minimum coverage
0402
0.25%
0.5%
0.1%
0.5%
0.1%
0.1%
Performance Data - Standard Range
Performance Data - High Power Range
Performance Data - Passivated Range
Construction
A thin-film material is selectively deposited on a 96% alumina substrate together with metallic contacts at each end of the resistor.
The unadjusted resistors are heat treated to give the required TCR and stability, then a precisely controlled laser trim process adjusts
the resistance value. Epoxy protection is applied and wrap-around terminations are added and plated with Nickel then Tin. Each
resistor is measured immediately before packing into tape.
Terminations
The standard termination is 100% Sn matte plated wrap-around suitable for soldering. SnPb plated option is available for standard
range PCF over the restricted range below.
Physical Data
Dimensions (mm) and Weight (mg)
L W T max A C Wt
0201 0.58 0.05 0.29 0.05 0.26 0.15 0.05 0.12 0.05 0.14
0402 1.0 0.1 0.5 0.05 0.55 0.25 0.15 0.2 0.15 0.54
0603 1.6 0.2 0.8 0.2 0.65 0.35 0.25 0.3 0.2 1.8
0805 2.0 0.2 1.25 0.2 0.65 0.4 0.25 0.3 0.2 4.7
1206 3.05 0.15 1.55 0.15 0.65 0.35 0.25 0.42 0.2 9.0
1210 3.10 0.15 2.5 0.25 0.65 0.55 0.25 0.4 0.3 10
2010 4.9 0.2 2.4 0.25 0.65 0.55 0.3 0.6 0.3 24
2512 6.3 0.2 3.1 0.25 0.65 0.7 0.45 0.6 0.3 38
T
W
A
A
L
Wrap-around terminations
(3 faces)
C
Type TCR
(ppm/°C)
Power
(W) Limiting Element
Voltage (V)
Ohmic Value Range
1% 0.5% 0.25% 0.1%
PCF0805
50
0.1 100
10R – 250K
25 10R – 100K
15 10R – 100K
PCF1206
50
0.125 150
10R – 500K
25 10R – 200K
15 10R – 200K
SnPb Termination Option Range
Precision Surface Mount Resistors
03.11
© 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
PCF Series
>0.05% tolerance
0603 to 2512
0.25%
0.3%
0.5%
0.25%
0.1%
0.2%
Load life
Humidity
Short term overload
High temperature operation
Temperature cycle
Resistance to solder heat
Solderability
Maximum change (+0.05R)
Chip size
0201, 0402
0.5%
0.3%
0.5%
0.25%
0.1%
0.2%
≤0.05% tolerance
0603 to 2512
0.05%
0.05%
0.05%
0.25%
0.05%
0.05%
ConditionsTest Parameters
1000 hours rated load @ 70°C
1000 hours @ 40°C, 90 - 95%RH
6.25 x rated Power , or 2 x LEV, for 5 sec
1000 hours at 125°C
5 cycles -55 C, 125°C
270°C, 10 sec
235°C, 2 sec 95% minimum coverage
0.5%
0.5%
0.5%
0.5%
0.25%
0.2%
95% minimum coverage
Load life
Humidity
Short term overload
High temperature operation
Temperature cycle
Resistance to solder heat
Solderability
Maximum change (+0.05R)ConditionsTest Parameters
1000 hours rated load @ 70°C
1000hrs @ 40°C, 90 - 95%RH
6.25 x rated Power, or 2 x LEV, for 5 sec
1000 hours at 155°C
5 cycles -55°C, 150°C
270°C, 10 sec
235°C, 2 sec
0603 to 2512
0.05%
0.05%
0.02%
0.05%
0.02%
0.02%
Load life
Humidity
Short term overload
High temperature operation
Temperature cycle
Resistance to solder heat
Solderability
Maximum change (+0.05R)ConditionsTest Parameters
1000 hours rated load @ 70°C
1000hrs @ 40°C, 90 - 95%RH
6.25 x rated Power, or 2 x LEV, for 5 sec
1000 hours at 125°C
5 cycles -55 C, 125°C
270°C, 10 sec
235°C, 2 sec 95% minimum coverage
0402
0.25%
0.5%
0.1%
0.5%
0.1%
0.1%
Performance Data - Standard Range
Performance Data - High Power Range
Performance Data - Passivated Range
Construction
A thin-film material is selectively deposited on a 96% alumina substrate together with metallic contacts at each end of the resistor.
The unadjusted resistors are heat treated to give the required TCR and stability, then a precisely controlled laser trim process adjusts
the resistance value. Epoxy protection is applied and wrap-around terminations are added and plated with Nickel then Tin. Each
resistor is measured immediately before packing into tape.
Terminations
The standard termination is 100% Sn matte plated wrap-around suitable for soldering. SnPb plated option is available for standard
range PCF over the restricted range below.
Physical Data
Dimensions (mm) and Weight (mg)
L W T max A C Wt
0201 0.58 0.05 0.29 0.05 0.26 0.15 0.05 0.12 0.05 0.14
0402 1.0 0.1 0.5 0.05 0.55 0.25 0.15 0.2 0.15 0.54
0603 1.6 0.2 0.8 0.2 0.65 0.35 0.25 0.3 0.2 1.8
0805 2.0 0.2 1.25 0.2 0.65 0.4 0.25 0.3 0.2 4.7
1206 3.05 0.15 1.55 0.15 0.65 0.35 0.25 0.42 0.2 9.0
1210 3.10 0.15 2.5 0.25 0.65 0.55 0.25 0.4 0.3 10
2010 4.9 0.2 2.4 0.25 0.65 0.55 0.3 0.6 0.3 24
2512 6.3 0.2 3.1 0.25 0.65 0.7 0.45 0.6 0.3 38
T
W
A
A
L
Wrap-around terminations
(3 faces)
C
06.18
General Note
TT Electronics reserves the right to make changes in product specication 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
www.ttelectronics.com/resistors
BI Technologies IRC Welwyn
Precision Thin Film
Nichrome Chip Resistors
PCF Series
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.
Precision Surface Mount Resistors
03.11
© 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
PCF Series
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.
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.
Derating Curve
Smaller sizes are in paper tape.
Precision Surface Mount Resistors
03.11
© 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
PCF Series
>0.05% tolerance
0603 to 2512
0.25%
0.3%
0.5%
0.25%
0.1%
0.2%
Load life
Humidity
Short term overload
High temperature operation
Temperature cycle
Resistance to solder heat
Solderability
Maximum change (+0.05R)
Chip size
0201, 0402
0.5%
0.3%
0.5%
0.25%
0.1%
0.2%
≤0.05% tolerance
0603 to 2512
0.05%
0.05%
0.05%
0.25%
0.05%
0.05%
ConditionsTest Parameters
1000 hours rated load @ 70°C
1000 hours @ 40°C, 90 - 95%RH
6.25 x rated Power , or 2 x LEV, for 5 sec
1000 hours at 125°C
5 cycles -55 C, 125°C
270°C, 10 sec
235°C, 2 sec 95% minimum coverage
0.5%
0.5%
0.5%
0.5%
0.25%
0.2%
95% minimum coverage
Load life
Humidity
Short term overload
High temperature operation
Temperature cycle
Resistance to solder heat
Solderability
Maximum change (+0.05R)ConditionsTest Parameters
1000 hours rated load @ 70°C
1000hrs @ 40°C, 90 - 95%RH
6.25 x rated Power, or 2 x LEV, for 5 sec
1000 hours at 155°C
5 cycles -55°C, 150°C
270°C, 10 sec
235°C, 2 sec
0603 to 2512
0.05%
0.05%
0.02%
0.05%
0.02%
0.02%
Load life
Humidity
Short term overload
High temperature operation
Temperature cycle
Resistance to solder heat
Solderability
Maximum change (+0.05R)ConditionsTest Parameters
1000 hours rated load @ 70°C
1000hrs @ 40°C, 90 - 95%RH
6.25 x rated Power, or 2 x LEV, for 5 sec
1000 hours at 125°C
5 cycles -55 C, 125°C
270°C, 10 sec
235°C, 2 sec 95% minimum coverage
0402
0.25%
0.5%
0.1%
0.5%
0.1%
0.1%
Performance Data - Standard Range
Performance Data - High Power Range
Performance Data - Passivated Range
Construction
A thin-film material is selectively deposited on a 96% alumina substrate together with metallic contacts at each end of the resistor.
The unadjusted resistors are heat treated to give the required TCR and stability, then a precisely controlled laser trim process adjusts
the resistance value. Epoxy protection is applied and wrap-around terminations are added and plated with Nickel then Tin. Each
resistor is measured immediately before packing into tape.
Terminations
The standard termination is 100% Sn matte plated wrap-around suitable for soldering. SnPb plated option is available for standard
range PCF over the restricted range below.
Physical Data
Dimensions (mm) and Weight (mg)
L W T max A C Wt
0201 0.58 0.05 0.29 0.05 0.26 0.15 0.05 0.12 0.05 0.14
0402 1.0 0.1 0.5 0.05 0.55 0.25 0.15 0.2 0.15 0.54
0603 1.6 0.2 0.8 0.2 0.65 0.35 0.25 0.3 0.2 1.8
0805 2.0 0.2 1.25 0.2 0.65 0.4 0.25 0.3 0.2 4.7
1206 3.05 0.15 1.55 0.15 0.65 0.35 0.25 0.42 0.2 9.0
1210 3.10 0.15 2.5 0.25 0.65 0.55 0.25 0.4 0.3 10
2010 4.9 0.2 2.4 0.25 0.65 0.55 0.3 0.6 0.3 24
2512 6.3 0.2 3.1 0.25 0.65 0.7 0.45 0.6 0.3 38
T
W
A
A
L
Wrap-around terminations
(3 faces)
C
0100%100%
70 100%100%
12535% 0%
155 0%
0%
20%
40%
60%
80%
100%
0 50 100 150
Proportion of Pr
Ambient Temperature (°C)
Temperature Derating
High Power
Range
Standard &
Passivated
Derating Curve
06.18
General Note
TT Electronics reserves the right to make changes in product specication 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
www.ttelectronics.com/resistors
BI Technologies IRC Welwyn
Precision Thin Film
Nichrome Chip Resistors
PCF Series
** Applies to all Ranges, Termination and Packing options.
Ordering Procedure
This product has two valid part numbers:
European (Welwyn) Part Number**: PCF0603-11-1K54BI (0603, standard, 15ppm/°C, 1.54 kilohm ±0.1%, Pb-free)
P
C
0
0
3
1
K
4
B
I
1
2
3
4
5
6
7
USA (IRC) Part Number*: PCF-W0603LF-11-1541-B-P-LT (0603, standard, 15ppm/°C, 1.54 kilohm ±0.1%, Pb-free)
P
C
-
0
6
0
L F
1
1
1
5
1
-
-
P
-
L
T
1
2
3
4
5
7
8
* Applies only to Standard Range, Pb-Free parts
1
2
3
4
5
6
7
Type Size Range TCR ValueTolerance Termination & Packing
PCF
0201
Omit for
Standard
-13 = ±5ppm/°C
E24 = 3/4 characters
E96 = 3/4 characters
R = ohms
K = kilohms
M = megohms
L = ±0.01%
0402
-12 = ±10ppm/°C
W = ±0.05%
0603
H = High Power
-
11 = ±15ppm/°C
B = ±0.1%
0201, 0402
10,000/reel
0805
R = ±25ppm/°C
-20 = ±2ppm/°C
-19 = ±3ppm/°C
C = ±0.25%
0603
to 1210
5000/reel
1206
P = Passivated
-
02 = ±50ppm/°C
D = ±0.5%
2010, 2512
4000/reel
1210
F = ±1%
T1* = Pb-free, 1K reel
2010
0201 to 1206,
2010, 2512
1000/reel
2512
* Non-standard; enquire to confirm
1
2
3
4
5
6
7
8
Type Model Termination TCR ValueTolerance Tape Packing
PCF
W0201
LF = Pb-
free
(100%Sn)
13 = ±5ppm/°C
3 digits + multiplier
T = ±0.01%
P = Paper
(0201 to 1210)
LT = Tape & Reel
W0402
12 = ±10ppm/°C
R = ohms for
values <100 ohms
A = ±0.05%
0201, 0402
10,000/reel
W0603
11 = ±15ppm/°C
B = ±0.1%
E = Embossed
(2010, 2512)
0603 to 1210
5000/reel
W0805
03 = ±25ppm/°C
C = ±0.25%
2010, 2512
4000/reel
W1206
02 = ±50ppm/°C
D = ±0.5%
W1210
F = ±1%
W2010
W2512
A = AEC-Q200 grade, Pb-free
I = Standard grade, Pb-free
Standard Packing
PB = SnPb, 1K reel
0805, 1206 1000/reel
availability
06.18
General Note
TT Electronics reserves the right to make changes in product specication 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
www.ttelectronics.com/resistors
BI Technologies IRC Welwyn