UNDER DEVELOPMENT
01005 RK73B 1F** ± 250 0.03 W 15 V 30 V 10 Ω… 1MΩ10 Ω… 1 MΩ
± 400 – 1 Ω… 9.1 Ω- 55° C … + 125° C*
0201 RK73B 1H ± 200 0.05 W 25 V 50 V 10 Ω… 10 MΩ10 Ω… 10 MΩ
RK73B 1E ± 400 0.063 W –
0402 ± 200 10 Ω… 10 MΩ10 Ω… 10 MΩ
0603 RK73B 1J ± 400 0.1 W
50 V 100 V
± 200 10 Ω… 10 MΩ10 Ω… 10 MΩ
0805 RK73B 2A ± 400 0.125 W 150 V 200 V
± 200 10 Ω… 1 MΩ10 Ω… 1 MΩ
1206 RK73B 2B ± 400 0.25 W - 55° C . . . +155° C*
± 200 10 Ω… 5.6 MΩ10 Ω… 5.6 MΩ
1210 RK73B 2E ± 400 200 V —
± 200 400 V
2010 RK73B 2H ± 400 0.75 W —
± 200 10 Ω… 5.6 MΩ10 Ω… 5.6 MΩ
2512 RK73B 3A ± 400 1 W 200 V —
± 200 (500 V)** 10 Ω… 5.6 MΩ10 Ω… 5.6 MΩ
* Please note derating diagram
** Under development
TECHNOLOGY OF TOMORROW
RESISTORS
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
FLAT CHIP
THICK FILM (5% • 2%)
GENERAL PURPOSE
RK73 B
FEATURES
■RuO2thick film resistor element
■Anti-leaching nickel barrier terminations
■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)
■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
STRUCTURE
IDENTIFICATION
RATING
1Ceramic substrate
2Top termination (Ag Pd) ~ 11 µm
3Bottom termination (Ag Pd) ~ 11 µm
4Resistive layer ~ 11 µm
5Glass layer ~ 11 µm
6Trimming cut
7Protective layer ~ 25 µm
8End termination ~ 0.05 µm
9Diffusion barrier (Ni) 3 ~ 12 µm
10 Solder plating 3 ~ 12 µm
RK73B 1F … RK73B 1E Black None
RK73B 1J ... RK73B 3A White, 3 digits
1 Ω. . . 9.1 Ω
1 Ω. . . 9.1 Ω
11 MΩ. . . 22 MΩ
1 Ω. . . 9.1 Ω
1 Ω. . . 9.1 Ω
1.1 MΩ. . . 10 MΩ
1 Ω. . . 9.1 Ω
1.1 MΩ. . . 10 MΩ
1 Ω. . . 9.1 Ω
6.2 MΩ. . . 22 MΩ
1 Ω. . . 9.1 Ω
6.2 MΩ. . . 10 MΩ
1 Ω. . . 9.1 Ω
6.2 MΩ. . . 10 MΩ
1 Ω. . . 9.1 Ω
6.2 MΩ. . . 22 MΩ
1 Ω. . . 9.1 Ω
6.2 MΩ. . . 22 MΩ
TYPE COATING
COLOR MARKING
DIMENSIONS (mm)
SIZE TYPE L W c d t
0201 RK73 1H 0.6 ± 0.03 0.3 ± 0.03 0.1 ± 0.05 0.15 ± 0.05 0.23 ± 0.03
0402 RK73 1E 1.0 0.5 ± 0.05 0.2 ± 0.1 0.25 0.35 ± 0.05
0603 RK73 1J 1.6 ± 0.2 0.8 ± 0.1 0.3 ± 0.1 0.3 ± 0.1 0.45 ± 0.1
0805 RK73 2A 2.0 ± 0.2 1.25 ± 0.1 0.4 ± 0.2 0.3 0.5 ± 0.1
1206 RK73 2B 3.2 ± 0.2 1.6 ± 0.2
1210 RK73 2E 2.6 ± 0.2 0.5 ± 0.3 0.6 ± 0.1
2010 RK73 2H 5.0 ± 0.2 2.5 ± 0.2
2512 RK73 3A 6.3 ± 0.2 3.1 ± 0.2
+ 0.2
– 0.1
+ 0.2
– 0.1
+ 0.1
– 0.05
+ 0.05
– 0.1
+ 0.2
– 0.1
Specifications given herein may be changed at any time without prior notice.
Please confirm technical specifications before you order and/or use.
Products with Pb-free terminations
meet RoHS requirements
0.5 W
0.33 W
0.5 W
0.33 W
10 Ω. . . 1 kΩ
1.1 kΩ. . . 5.6 MΩ
10 Ω. . . 1 kΩ
1.1 kΩ. . . 5.6 MΩ
TYPE DESIGNATION (HOW TO ORDER)
*Please see “PACKAGING”
RK73K
PRODUCT CODE
1J
STYLE
1F…3A
TD
TAPING*
10K
NOMINAL
RESISTANCE
3 digits
TERMINATION
SURFACE MATERIAL
T: Sn L: Sn/Pb
(G: Au)
G
TOLERANCE
RK73B 1J TD 103T G
TOLERANCE
J: ±5%
G: ±2%
NEW
RESISTORS
T.C.R. POWER* MAX. MAX. RESISTANCE RANGE (E24) OPERATING
SIZE TYPE (ppm/K) RATING WORKING OVERLOAD TEMPERATURE
VOLTAGE VOLTAGE G (± 2%) J (± 5%) RANGE
01005 RK73 1F** 0.4 ± 0.02 0.2 ± 0.02 0.1 ± 0.03 0.1 ± 0.03 0.12 ± 0.02
Care should be taken that RK73B1F may be damaged when static electricity
occours and is applied in the equipment assembly process
Old Part No.
New Part No.
(Pb-free)
0.4
0.4
(0.65 ± 0.15)*
* Time of change to (0.65 ± 0.15) will be announced by PCN.
TECHNOLOGY OF TOMORROW
RESISTORS
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
FLAT CHIP
THICK FILM
RK73
Life test at 70° C rated power (P70) IEC 60115-1 4.25.1 ± (1% · R + 0.05 Ω)
70° C ± 3° C, 1000 h; 1.5 h On / 0.5 h Off cycle
Rapid change of temperature IEC 60115-1 4.19 ± (0.5 % · R + 0.1 Ω)
– 55° C (30 min) / + 125° C (30 min); 5 cycles
Damp heat steady state IEC 60115-1 4.24 ± (1% · R + 0.05 Ω)
56 days at 40° C and 93% relative humidity
Endurance at 125° C IEC 60115-1 4.25.3 ± (1% · R + 0.05 Ω)
+ 125° C / 1000 h
Short time overload IEC 60115-1 4.13 ± (1% · R + 0.05 Ω)
6.25 x rated power for 5 sec., but smaller 2.5 x Umax
T.C.R. IEC 60115-1 4.8 Within specified T.C.R.
Cycle: + 25° C/- 55° C/+ 25 ° C/+ 125 ° C/+ 25 ° C
Bending test IEC 60115-1 4.31 ± (0.5% · R + 0.05 Ω)
Bending: 5 mm (1J, 2A, 2B); 3 mm (1H, 1E); 2 mm (2E, 2H, 3A)
Solderability IEC 60068-2-20 Terminations > 95% covered with new solder
235 ± 5° C / 2 ± 0.5 sec.
Resistance to soldering heat IEC 60115-1 4.18 ± (0.5% · R + 0.05 Ω)
10 ± 1 sec. at 260 ± 5° C solder bath temperature
PERFORMANCE
TEST TEST CONDITIONS TYP. TEST RESULTS
DERATING CURVE
AMBIENT TEMPERATURE (°C)
% RATED POWER
TEMPERATURE RISE (°C)
% RATED POWER
SURFACE TEMPERATURE RISE
Specifications given herein may be changed at any time without prior notice.
Please confirm technical specifications before you order and/or use.
1F, 1H
1E ... 3A
PULSE POWER IN WATTS (PO)
PULSE DURATION TIME IN SECONDS (t)
KOA RK73 Flat Chip Resistors
ONE-PULSE LIMITING ELECTRIC POWER
RESISTORS
