RESISTORS
TECHNOLOGY OF TOMORROW
FLAT CHIP
THICK FILM (5% • 2%)
GENERAL PURPOSE
RK73 B
STRUCTURE
1
2
3
4
5
6
7
8
9
Ceramic substrate
Top termination (Ag Pd)
Bottom termination (Ag)
Resistive layer
~ 11
~ 11
~ 11
~ 11
µm
µm
µm
µm
Glass layer
Trimming cut
Protective layer
~ 25
µm
End termination
Diffusion barrier (Ni)
~ 0.05 µm
3 ~ 12 µm
3 ~ 12 µm
10 Solder plating
IDENTIFICATION
COATING
COLOR
TYPE
MARKING
RK73B 1F … RK73B 1E
RK73B 1J ... RK73B 3A
None
White, 3 digits
Products with Pb-free terminations
meet RoHS requirements
Black
TYPE DESIGNATION (HOW TO ORDER)
Old Part No.
RK73K
1J
G
TD
TD
10K
103
New Part No.
(Pb-free)
RK73B
1J
T
G
TERMINATION
SURFACE MATERIAL
T: Sn L: Sn/Pb
(G: Au)
NOMINAL
RESISTANCE
3 digits
TOLERANCE
PRODUCT CODE
TOLERANCE
TAPING*
STYLE
J: 5ꢀ
G: 2ꢀ
1F…3A
*Please see “PACKAGING”
FEATURES
DIMENSIONS (mm)
■ RuO2 thick film resistor element
SIZE
TYPE
L
W
c
d
t
■ Anti-leaching nickel barrier terminations
NEW
01005
0201
0402
0603
0805
1206
1210
2010
2512
RK73 1F
RK73 1H
RK73 1E
RK73 1J
RK73 2A
RK73 2B
RK73 2E
RK73 2H
RK73 3A
0.4
0.6
1.0
1.6
2.0
0.02 0.2
0.02 0.08 0.03 0.11 0.03 0.13 0.02
0.03 0.1 0.05 0.15 0.05 0.23 0.03
0.05 0.2 0.1
■ Excellent heat resistance and moisture resistance are
ensured by the use of metal glaze thick film
■ Also available with expoxy bondable, silver-palladium
inner terminations in 1J, 2A and 2B sizes (see RK73X series)
■ Also available with gold plated electrodes in size 1E, 1J and
2A (10Ω…1MΩ)
0.03 0.3
+
–
0.1
0.05
+
–
0.05
0.1
0.5
0.25
0.3
0.3
0.35 0.05
0.45 0.1
0.2
0.2
0.8
0.1
0.3 0.1
0.4 0.2
0.1
+
–
0.2
0.1
1.25 0.1
0.5
0.1
■ Rated ambient temperature: +70° C
■ Taping according to IEC-60 286-3
■ Meets or exceeds IEC 60 115, CECC 40 401-802, EIAJ RC-2134A
■ Suitable for reflow and wave soldering
■ Lab Kit available
1.6
2.6
2.5
3.1
0.2
0.2
0.2
0.2
+
–
0.2
0.1
3.2
0.2
0.4
0.5 0.3
0.6
0.1
+
–
0.2
0.1
5.0
6.3
0.2
0.2
0.4
(0.65 0.15)*
* Time of change to (0.65 0.15) will be announced by PCN.
RATING
MAX.
MAX.
OPERATING
TEMPERATURE
RANGE
RESISTANCE RANGE (E24)
T.C.R.
(ppm/K)
POWER*
RATING
SIZE
TYPE
WORKING OVERLOAD
G ( 2%)
J ( 5%)
VOLTAGE
VOLTAGE
300
250
400
200
400
200
400
200
400
200
400
200
400
200
400
200
400
10 Ω … 6.2 kΩ
6.8 kΩ … 1 MΩ
–
10 Ω … 6.2 kΩ
6.8 kΩ … 1 MΩ
1 Ω … 9.1 Ω
10 Ω … 10 MΩ
1 W . . . 9.1 W
NEW
01005
0201
RK73B 1F
RK73B 1H
0.03 W
0.05 W
15 V
30 V
- 55° C … + 125° C*
25 V
50 V
100 V
200 V
10 Ω … 10 MΩ
–
0402
RK73B 1E
0.063 W
0.1 W
10 Ω … 10 MΩ
1 W . . . 9.1 W
10 Ω … 10 MΩ
10 Ω … 10 MΩ
50 V
1 Ω . . . 9.1 Ω
11 MΩ . . . 22 MΩ
0603
0805
1206
1210
2010
2512
RK73B 1J
RK73B 2A
RK73B 2B
RK73B 2E
10 Ω… 10 MΩ
1 Ω . . . 9.1 Ω
1 Ω . . . 9.1 Ω
1.1 MΩ . . . 10 MΩ
1.1 MΩ . . . 10 MΩ
0.125 W
0.25 W
150 V
10 Ω … 1 MΩ
10 Ω … 1 MΩ
1 Ω . . . 9.1 Ω
6.2 MΩ . . . 22 MΩ
1 Ω . . . 9.1 Ω
- 55° C . . . +155° C*
6.2 MΩ . . . 10 MΩ
10 Ω … 5.6 MΩ
10 Ω … 5.6 MΩ
1 Ω . . . 9.1 Ω
0.5 W
0.33 W
0.5 W
—
6.2 MΩ . . . 10 MΩ
200 V
10 Ω . . . 1 kΩ
10 Ω . . . 1 kΩ
1.1 kΩ . . . 5.6 MΩ
1 Ω . . . 9.1 Ω
6.2 MΩ . . . 22 MΩ
0.33 W
1.1 kΩ . . . 5.6 MΩ
400 V
—
0.75 W
1 W
RK73B 2H
RK73B 3A
10 Ω … 5.6 MΩ
—
10 Ω … 5.6 MΩ
10 Ω … 5.6 MΩ
1 Ω . . . 9.1 Ω
200 V
(500 V)**
400 V
(500 V)**
6.2 MΩ . . . 22 MΩ
200
10 Ω … 5.6 MΩ
Rated voltage =zPower rating x resistance value or max. working voltage, whichever is lower.
“
For resistors operated in ambient temperature over +70°C, power rating shall be derated like shown in „DERATING CURVE .
*
** Please contact KOA about the increased max. working voltage and the max. overload voltage.
Care should be taken, that RK73B1F may be damaged when static electricity occurs and is applied in the equipment assembly process.
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: 03. May 2006
6