TaNFilm
®
Precision
Chip Resistors
PFC Series
Welwyn Components
•
•
•
•
•
•
Military parts available: MIL-PRF - 55342
Passivated TaNFilm
®
element
Wrap-around termination
TCR to ±10 ppm/°C
Tolerance to ±0.02%
Leach resistant nickel barrier termination
Electrical Data
W0603
Power Rating at 70°C
Maximum Voltage Rating
Operating Temperature Range
Noise
Substrate
watts
volts
°C
dB
0.1
75
W0805
0.25
100
-55°C to +150°C
Less than -25
High purity alumina
W1206
0.33
200
Manufacturing Capabilities
W0603
TCR
(ppm/°C)
±100
±50
±25
Ohmic
Range
5 - 100KΩ
5 - 100KΩ
10 - 75KΩ
50 - 100KΩ
±15
±10
N/A
N/A
Available
Tolerances
J, G, F, D
J, G, F, D, B
J, G, F, D, B
J, G, F, D, B, A
N/A
N/A
Ohmic
Range
5 - 267KΩ
10 - 267KΩ
10 - 267KΩ
50 - 267KΩ
201 - 267KΩ
50 - 267KΩ
201 - 267KΩ
100 - 100KΩ
W0805
Available
Tolerances
J, G, F, D
J, G, F, D, B
J, G, F, D, B
J, G, F, D, B, A
J, G, F, D, B, A, Q
J, G, F, D, B, A
J, G, F, D, B, A, Q
J, G, F, D, B, A
Ohmic
Range
5 - 1MΩ
10 - 1MΩ
10 - 1MΩ
50 - 1MΩ
201 - 1MΩ
50 - 1MΩ
201 - 1MΩ
100 - 250KΩ
W1206
Available
Tolerances
J, G, F, D
J, G, F, D, B
J, G, F, D, B
J, G, F, D, B, A
J, G, F, D, B, A, Q
J, G, F, D, B, A
J, G, F, D, B, A, Q
J, G, F, D, B, A
The TaNFilm
®
PFC chip resistor series provides the high
temperature and ultra stable performance of our Tantalum
Nitride Resistive Film System in 1206, 0805 and 0603 sizes.
The unique characteristics of the passivated Tantalum Nitride
film insure long term life stability and superior moisture
performance.
Specially selected materials and processes insure initial
precision is maintained in the harshest surface mount
soldering environment. Solder coated wrap-around
terminations with leach-resistant nickel barriers insure high
integrity solder connections. A MIL-PRF-55342 qualified
version of this product is also available.
General Note
Welwyn Components reserves the right to make changes in product specification without notice or liability.
All information is subject to Welwyn’s own data and is considered accurate at time of going to print.
A subsidiary of
TT electronics plc
Issue D · 10.03
© 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
25
TaNFilm
®
Precision
Chip Resistors
PFC Series
Welwyn Components
Environmental Performance
Environmental Test
MIL-PRF-55342
Thermal Shock
Low Temperature Operation
Short Time Overload
High Temperature Exposure
Effects of Solder
Moisture Resistance
Life
Typical
±0.02%
±0.01%
±0.01%
±0.03%
±0.01%
±0.03%
±0.03%
Performance
Maximum
±0.10%
±0.05%
±0.05%
±0.10%
±0.10%
±0.10%
±0.10%
Dimensions
Dimensions (Inches)
Model
W0603
W0805
W1206
A
0.063±0.004
0.081±0.005
0.126±0.006
B
0.031±0.004
0.050±0.005
0.063±0.005
C
0.020±0.004
0.020±0.006
0.024±0.004
D
0.008±0.004
0.015±0.005
0.015±0.005
E
0.008±0.004
0.015±0.005
0.015±0.005
A
B
TOP
D
SIDE
E
C
BOTTOM
Ordering Procedure
Example: PFC at 0805 size, 26.7 kilohms, 0.1% tolerance and 10ppm/ºC TCR on a reel of up
to 4000 pieces -
W 0 8 0 5 R-12
–
2 6 K 7 B
I
Type (W signifies PFC Series)
Size
TCR
R-12
R-11
R
10ppm/
°C
15ppm/ºC
25ppm/
°C
R-02
R-01
50ppm/
°C
100ppm/
°C
Value (use IEC62 code)
Tolerance (use IEC62 code)
Q
A
B
D
0.02%
0.05%
0.1%
0.5%
F 1%
G 2%
J 5%
Packing
I
Tape
0603, 0805,1206
Up to 4000/reel
Standard
© 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
26
Issue D · 10.03
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