CR1005 WELWYN [Welwyn Components Limited], CR1005 Datasheet - Page 2

• Manufacturer Part Number: CR1005
• Description: Surface Mounted Resistors
• Manufacturer: WELWYN [Welwyn Components Limited]

18
Surface Mounted
Resistors
CR Series
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.
Performance Data
Note: An 0.01 ohm addition to be added to the performance of all resistors <10 ohms
Value Ranges (ohms)
© Welwyn Components Limited
Telephone: [phone] · Facsimile: [phone] · Email: [e-mail] · Website: www.welwyn-tt.com
Physical Data
†
This dimension determines the number of conductors which may pass under the surface mounted device.
Dimensions of Standard Styles (mm) & Weight (g)
Style
0503
0805
1005
1206
2010
2512
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
Tolerance
Size
0503
0805
1005
1206
2010
2512
1.25±0.2 0.63±.15
2.0±0.2 1.25±0.15
2.5±0.3 1.25±0.2
3.2±0.2
5.1±0.3
6.5±0.3
L
1.6±0.2
2.5±0.2
3.2±0.2
W
T max
0.5
0.6
0.7
0.7
0.7
0.7
Bedlington, Northumberland NE22 7AA, UK
Wrap around
1 to 100M
1 to 100M
1 to 100M
1 to 10M
1 to 1M
1 to 1M
0.3±0.15 0.9 min
0.4±0.2
0.6±0.3
0.6±0.3
5
∆R%
∆R%
∆R% 0805:1 1206:0.5
∆R%
∆R%
∆R%
∆R%
volts
A
Not available
Not available
CECC 40401-008 CECC40401-004 CECC40401-003
Requirements
1.7 min 0.4±0.15
3.0 min
4.4 min
Zero at 155°C
B
1 to 10M
1 to 50M
1 to 50M
1 to 50M
1 to 1M
1 to 1M
†
0.5
0.5
2
2
2
-
2
0.20±0.1
0.4±0.15
0.3±0.1
0805 : 200
2010 : 400
N/A
N/A
C
Requirements
Zero at 125°C
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.
10 to 10M
1 to 20M
1 to 20M
1 to 25M
1 to 1M
1 to 1M
0.020
0.036
0.055
0.005
0.009
0.015
0.5
0.5
0.5
Wt
2
1
2
-
1
1206 : 300
2512 : 500
Alternative styles for
surface mounting resistors
%
Requirements
Zero at 125°C
A
Wrap-around terminations
≤ 3M3 2
≤ 3M3 2
100 to 1M
10 to 10M
10 to 10M
10 to 10M
10 to 10M
10 to 10M
>3M3 3
>3M3 3
L
0.5
B
2
2
1
2
-
(3 faces)
A
Welwyn Components
W
Maximum
to 10M 1
100 to 1M
100 to 1M
100 to 1M
100 to 1M
100 to 1M
>10M 2
0.25
0.25
T
0.1
0.25
N/A
2
1
1
All others : 500
Planar terminations
0503 : 100
L
Actual
C
100 to 1M
100 to 1M
100 to 1M
>10M 1
Typical
Issue F · 10.05
0.25
0.02
0.25
0.05
0.05
W
0.1
0.2
N/A
N/A
N/A
0.1
C
T