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Inner electrode protection
Electrical Data
0402
0603
0805
1206
2010
2512
Power rating at 70擄C
watts
0.063
0.063
0.10
0.125
0.25
0.5
1.0
Resistance range
ohms 4R7 to 2M2 1R to 22M 1R to 22M 1R to 22M 1R to 22M 1R to 10M 1R to 10M
Limiting element voltage volts
50
50
150
200
200
200
TCR
ppm/擄C
see table below
Resistance tolerance
%
see table below
Standard values
E24 / E96 preferred. Other values to special order
Ambient temperature range 擄C
-55 to 125
Tolerance/Resistance/TCR
WCR 0402
WCR 0603
Ohmic
Range
(Ohms)
MIN MAX
100R 100K 鹵50
1R 10M 鹵100
1R 10M 鹵200
1R 10M 鹵200
TCR
ppm
/擄C*
WCR 0805
Ohmic
Range
(Ohms)
MIN MAX
1R 10M 鹵100
1R 10M 鹵200
1R 10M 鹵200
TCR
ppm
/擄C*
WCR 1206@
1
/
8
W WCR 1206@
1
/
4
W
Ohmic
Range
(Ohms)
MIN MAX
1R 10M 鹵100
1R 10M 鹵200
1R 10M 鹵200
TCR
ppm
/擄C*
Ohmic
Range
(Ohms)
MIN MAX
10R 1M
10R 1M
10R 1M
鹵100
鹵200
鹵200
TCR
ppm
/擄C*
WCR 2010
Ohmic
Range
(Ohms)
MIN MAX
1R 10M 鹵300
10R 1M
鹵200
1R 10M 鹵300
TCR
ppm
/擄C*
WCR 2512
Ohmic
Range
(Ohms)
MIN MAX
1R 10M 鹵300
10R 1M
鹵200
1R 10M 鹵300
TCR
ppm
/擄C*
Tolerance
Ohmic
Range
(Ohms)
MIN MAX
TCR
ppm
/擄C
鹵 0.5%
鹵 1%
鹵 2%
鹵 5%
鹵 10%
100R 100K 鹵50
10R 1MO 鹵100
10R 1M
鹵200
4R7 2M2 鹵300
100R 100K 鹵100 100R 100K 鹵100
11M 22M 鹵300 11M 22M 鹵300 11M 22M 鹵300
Zero jumper chips also available
*Note: TCR for low values 1R to 4R3 -100 to +600 ppm/擄C.
TCR for high values 3M3 to 22M 鹵 300ppm/擄C.
Physical Data
Dimensions (mm)
Style
0402
0603
0805
1206
2010
2512
L
1.0 鹵 0.05
1.6 鹵 0.15
2.0 + 0.2
3.2 + 0.1
-0.15
5.0 鹵 0.15
6.3 鹵 0.15
W
0.5 鹵 0.03
0.8 鹵 0.15
1.25 + 0.2
-0.1
1.6 + 0.1
-0.15
2.5 鹵 0.15
3.2 鹵 0.15
T
0.35 鹵 0.05
0.5 + 0.15
-0.05
0.5 + 0.15
-0.10
0.55 + 0.15
-0.05
C
0.20 鹵 0.1
0.25 鹵 0.2
0.4 鹵 0.2
0.5 + 0.2
-0.25
A
0.25 鹵 0.1
0.25 鹵 0.2
T
C
0.4 鹵 0.2
0.5 + 0.2
-0.25
A
L
A
W
0.56 鹵 0.15 0.60 鹵 0.25 0.60 鹵 0.25
0.56 鹵 0.15 0.60 鹵 0.25 0.60 鹵 0.25
Wrap-around terminations
(3 faces)
*N.B. The minimum distance between the underside terminations of the WCR 1206 is 0.2mm.
General Note
Welwyn Components reserves the right to make changes in product specification without notice or liability.
All information is subject to Welwyn鈥檚 own data and is considered accurate at time of going to print.
漏 Welwyn Components Limited
Bedlington, Northumberland NE22 7AA, England Tel: 01670 822181 Fax: 01670 829465 Web: http://www.Welwyn-TT.co.uk
Issue A 07/99
15
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