RESISTORS
TECHNOLOGY OF TOMORROW
AXIAL TYPE
RK
STRUCTURE
1
2
3
4
5
6
7
Ceramic core
Trimmed metal glaze layer
Steel cap
(Cu, Sn plated)
Lead wire
Welding joint
Epoxy resin overcoating
Marking
IDENTIFICATION
PRODUCT CODE
RK 1/4
RK 1/2
RK 1
RK 1/2 G
COATING COLOR
MARKING
Color code
(R-value
and
tolerance)
Light blue-grey
Products with Pb-free terminations
meet RoHS requirements
TYPE DESIGNATION (HOW TO ORDER)
Old Part No.
New Part No.
(Pb-free)
RK
RK
PRODUCT
CODE
TERMINAL
STYLE
T.C.R.
14
B
2E
1/4
POWER
RATING
1/4: 0.25W
1/2: 0.5W
1: 1W
J
B
T.C.R.
D: ±100ppm/K
L: ±200ppm/K
G: ±250ppm/K
B: ±350ppm/K
T26
T26
TAPING &
FORMING
A
A
PACKAGING
*
10M
106
J
C
TERMINATION RESISTANCE
SURFACE
TOLERANCE
MATERIAL
C: SnCu
L: Sn/Pb
Specifications given herein may be changed at any time without prior notice.
Please confirm technical specifications before you order and/or use.
NOMINAL RESISTANCE
RESISTANCE TOLERANCE
F: 4 digits
G, J: 3 digits
F: ±1%
G: ±2%
J: ±5%
*Please see “PACKAGING”
FEATURES
■
Resistance tolerance ±1% and T.C.R. ±100 ppm/K are available
■
Small in dimension and broad range in high resistance
■
Metal glaze resistor elements provide high stable performance
against environmental conditions and overload
■
The RK 1/2 G is a discharge path resistor, which is recognised by
UL 1676 and c-UL (CSA-C22.2, NO. 1-M94) (File No. E159326);
EIA J RC-2128
■
Rated ambient temperature: +70°C
■
Operating temperature range: -55°C … +155°C
DIMENSIONS (mm)
TYPE
RK 1/4
RK 1/2
RK 1
RK 1/2 G
L
6.3±0.5
9.5±1.0
15.5±1.0
9.5±1.0
C Max.
7.1
11.1
18.3
11.1
D
2.3±0.3
3.5±0.4
5.5±0.5
3.5±0.4
d (nominal)
0.6
0.8
0.6
l
24 Min.
38 ± 3
24 Min.
DERATING CURVE
RATING
DIN
SIZE
TYPE
T.C.R.
(ppm/K)
POWER
RATING*
MAX.
WORKING
VOLTAGE
MAX.
OVERLOAD
VOLTAGE
DIELECTRIC
WITH-
STANDING
VOLTAGE
RESISTANCE RANGE
E96 • E24
F(±1%)
3.09 MΩ ... 25 MΩ
–
100 kΩ ... 25 MΩ
5.11 MΩ ... 33 MΩ
–
100 kΩ ... 35 MΩ
100 kΩ ... 51 MΩ
–
E24
G (±2%)
–
3.3 MΩ ... 33 MΩ
100 kΩ ... 33 MΩ
–
6.2 MΩ ... 33 MΩ
100 kΩ ... 51 MΩ
100 kΩ ... 100 MΩ
–
E24
J (±5%)
–
3.3 MΩ ... 33 MΩ
100 kΩ ... 33 MΩ
–
6.2 MΩ ... 33 MΩ
100 kΩ ... 51 MΩ
100 kΩ ... 100 MΩ
1 MΩ ... 12 MΩ
0207
0411
0617
0411
D (±100)
L (±200)
B (±350)
D (±100)
RK 1/2
L (±200)
B (±350)
RK 1
B (±350)
RK 1/2 G**
G (±250)
RK 1/4
0.25 W
500 V
700 V
500 V
0.5 W
1W
0.5 W
700 V
1000 V
350 V
1000 V
1500 V
700 V
700 V
1000 V
700 V
* For resistors operated in ambient temperature over +70°C, power rating shall be derated like shown in above “DERATING CURVE”.
** Discharge path resistor
EUROPE GmbH • Kaddenbusch 6 • D-25578 Dägeling / ITZEHOE • PHONE: +49 (0) 48 21 / 89 89-0 • FAX: +49 (0) 48 21/ 89 89 89 • Internet: www.koaeurope.de
Revision: 5. Nov. 2004
RESISTORS
METAL GLAZE
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