Precision Surface Mount Resistors
PCF Series
Electrical Data - High Power Range
Type
PCF0603H
PCF0805H
PCF1206H
TCR
(ppm/°C
50
25
50
25
50
25
Power
(W)
0.1
0.125
0.25
Limiting
Element
Voltage (V)
50
150
200
Ohmic Value Range *
0.5%
10R-332K
10R-332K
4R7-1M
4R7-1M
4R7-1M
4R7-1M
0.25%
10R-332K
10R-332K
4R7-1M
4R7-1M
4R7-1M
4R7-1M
0.1%
10R-332K
10R-332K
4R7-1M
4R7-1M
4R7-1M
4R7-1M
* Standard values E24 or E96. Other values may be available by request.
Electrical Data - Passivated Range
Type
PCF0402P
PCF0603P
PCF0805P
PCF1206P
PCF2010P
PCF2512P
TCR
(ppm/°C
50
25
50
25
50
25
50
25
50
25
50
25
Power
(W)
0.063
0.063
0.1
0.125
0.25
0.5
Limiting
Element
Voltage (V)
25
50
100
150
150
150
Ohmic Value Range *
0.5%
25R-25K
25R-25K
25R-200K
25R-200K
25R-400K
25R-400K
25R-500K
25R-500K
25R-600K
25R-600K
25R-600K
25R-600K
0.25%
25R-25K
25R-25K
25R-200K
25R-200K
25R-400K
25R-400K
25R-500K
25R-500K
25R-600K
25R-600K
25R-600K
25R-600K
0.1%
25R-25K
25R-25K
25R-200K
25R-200K
25R-400K
25R-400K
25R-500K
25R-500K
25R-600K
25R-600K
25R-600K
25R-600K
* Standard values E24 or E96. Other values may be available by request.
Physical Data
Dimensions (mm)
0201
0402
0603
0805
1206
1210
2010
2512
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
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
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
C
T
A
L
A
W
Wrap-around terminations
(3 faces)
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.
© 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
Issue J . 03.07
WELWYN [ WELWYN COMPONENTS LIMITED ]
