RESISTORS
TECHNOLOGY OF TOMORROW
Revision: 5. Nov. 2004
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
Specifications given herein may be changed at any time without prior notice.
Please confirm technical specifications before you order and/or use.
RESISTORS
Products with Pb-free terminations
meet RoHS requirements
METAL GLAZE
AXIAL TYPE
RK 1Ceramic core
2Trimmed metal glaze layer
3Steel cap (Cu, Sn plated)
4Lead wire
5Welding joint
6Epoxy resin overcoating
7Marking
STRUCTURE
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
TYPE DESIGNATION (HOW TO ORDER)
14
TERMINAL
STYLE
PACKAGING
RK
PRODUCT
CODE
T.C.R.
RK
POWER
RATING
1/4: 0.25W
1/2: 0.5W
1: 1W
B
2EB
RESISTANCE
TOLERANCE
F: ±1%
G: ±2%
J: ±5%
RK 1/4 6.3±0.5 7.1 2.3±0.3 0.6 24 Min.
RK 1/2 9.5±1.0 11.1 3.5±0.4
RK 1 15.5±1.0 18.3 5.5±0.5 0.8 38 ± 3
RK 1/2 G 9.5±1.0 11.1 3.5±0.4 0.6 24 Min.
DIMENSIONS (mm)
TYPE C Max. Dd (nominal)
IDENTIFICATION
RK 1/4 Color code
RK 1/2 Light blue-grey (R-value
RK 1 and
RK 1/2 G tolerance)
PRODUCT CODE COATING COLOR MARKING
l
*Please see “PACKAGING”
*
DERATING CURVE
* For resistors operated in ambient temperature over +70°C, power rating shall be derated like shown in above “DERATING CURVE”.
** Discharge path resistor
RATING
DIN
SIZE TYPE T.C.R.
(ppm/K)
POWER
RATING*
MAX.
WORKING
VOLTAGE
D (±100) 3.09 MΩ... 25 MΩ––
0207 RK 1/4 L (±200) 0.25 W 500 V 700 V 500 V – 3.3 MΩ... 33 MΩ3.3 MΩ... 33 MΩ
B (±350) 100 kΩ... 25 MΩ100 kΩ... 33 MΩ100 kΩ... 33 MΩ
D (±100) 5.11 MΩ... 33 MΩ––
0411 RK 1/2 L (±200) 0.5 W 700 V 1000 V 700 V – 6.2 MΩ... 33 MΩ6.2 MΩ... 33 MΩ
B (±350) 100 kΩ... 35 MΩ100 kΩ... 51 MΩ100 kΩ... 51 MΩ
0617 RK 1 B (±350) 1 W 1000 V 1500 V 1000 V 100 kΩ... 51 MΩ100 kΩ... 100 MΩ100 kΩ... 100 MΩ
0411 RK 1/2 G** G (±250) 0.5 W 350 V 700 V 700 V – – 1 MΩ... 12 MΩ
RESISTANCE RANGE
E96 • E24 E24 E24
MAX.
OVERLOAD
VOLTAGE
DIELECTRIC
WITH-
STANDING
VOLTAGE F(±1%) G (±2%) J (±5%)
L
1/4 C
J T26
T26
A
A
10M
106 J
T.C.R.
D: ±100ppm/K
L: ±200ppm/K
G: ±250ppm/K
B: ±350ppm/K
TERMINATION
SURFACE
MATERIAL
C: SnCu
L: Sn/Pb
TAPING &
FORMING
NOMINAL
RESISTANCE
F: 4 digits
G, J: 3 digits
RESISTANCE
TOLERANCE
Old Part No.
New Part No.
(Pb-free)
