CR2512 查看數據表（PDF） - Welwyn Components Limited
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CR2512 Datasheet PDF : 3 Pages
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Surface Mounted
Resistors
CR Series
Welwyn Components
Physical Data
Dimensions of Standard Styles (mm) & Weight (g)
Wrap around
Style
L
W
T max
A
B†
C
0503 1.25±0.2 0.63±.15 0.5
Not available 0.20±0.1
0805 2.0±0.2 1.25±0.15 0.6 0.3±0.15 0.9 min 0.3±0.1
1005 2.5±0.3 1.25±0.2 0.7
Not available 0.4±0.15
1206 3.2±0.2 1.6±0.2 0.7 0.4±0.2 1.7 min 0.4±0.15
2010 5.1±0.3 2.5±0.2 0.7 0.6±0.3 3.0 min N/A
2512 6.5±0.3 3.2±0.2 0.7 0.6±0.3 4.4 min N/A
Wt
0.005
0.009
0.015
0.020
0.036
0.055
A
B
L
A
T
W
Wrap-around terminations
(3 faces)
Alternative styles for
surface mounting resistors
C
C
T
L
W
Planar terminations
†This dimension determines the number of conductors which may pass under the surface mounted device.
Construction
Thick film resistor material, overglaze and organic protection
are screen printed on a 96% alumina substrate.
Terminations
Planar (or single-sided) termination is gold and suitable for
wire-bonding; wrap-around is suitable for soldering.
Solderability
Wrap-around terminations have an electroplated nickel barrier
and solder coating, this ensures excellent ‘leach’ resistance
properties and solderability. They will withstand immersion in
solder at 260°C for 30 seconds.
Marking
All relevant information recorded on the primary package or reel.
Performance Data
Load at rated power: 1000 hours at 70°C
Shelf life: 12 months at room temp.
Derating from rated power at 70°C
Overload
Dry Heat: 1000 hours at UCT
(125°C for 003 & 004 - 155°C for 008)
Long term damp heat
Temperature rapid change
Resistance to solder heat
Voltage proof
CECC 40401-008 CECC40401-004 CECC40401-003
Requirements Requirements Requirements
∆R%
2
2
≤ 3M3 2
>3M3 3
∆R%
-
-
-
Zero at 155°C Zero at 125°C Zero at 125°C
∆R% 0805:1 1206:0.5
0.5
2
∆R%
2
1
≤ 3M3 2
>3M3 3
∆R%
2
2
2
∆R%
0.5
0.5
1
∆R%
0.5
0.5
2
volts
0805 : 200 1206 : 300
2010 : 400 2512 : 500
Note: An 0.01 ohm addition to be added to the performance of all resistors <10 ohms
Actual
Maximum
Typical
2
0.25
0.1
0.02
1
0.1
to 10M 1
0.2
>10M 2
>10M 1
1
0.25
0.25
0.05
0.25
0.05
0503 : 100
All others : 500
Value Ranges (ohms)
Tolerance
Size
0503
0805
1005
1206
2010
2512
5
1 to 10M
1 to 100M
1 to 100M
1 to 100M
1 to 1M
1 to 1M
2
1 to 10M
1 to 50M
1 to 50M
1 to 50M
1 to 1M
1 to 1M
%
1
0.5
10 to 10M
100 to 1M
1 to 20M
10 to 10M
1 to 20M
10 to 10M
1 to 25M
10 to 10M
1 to 1M
10 to 10M
1 to 1M
10 to 10M
0.25
N/A
100 to 1M
100 to 1M
100 to 1M
100 to 1M
100 to 1M
0.1
N/A
100 to 1M
100 to 1M
100 to 1M
N/A
N/A
© 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
18
Issue F · 10.05
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