RESISTORS
THICK FILM
anTI SULFURaTIOn
RK73 RT
FLAT CHIP
STRUCTURE
1
2
3
4
5
6
7
8
9
10
MaRKIng
Depends on size,
tolerance and series .
Please refer to
detailed specification .
all these products have Pb-free terminations
and meet EU-RoHS requirements
Ceramic substrate
Top termination
Bottom termination
Resistive layer
Glass layer
Trimming cut
Protective layer
End termination
Diffusion barrier (Ni)
Solder plating
IDEnTIFICaTIOn
TYPE
RK73H
RK73B
RT
RT
COaTIng
COLOR
Blue
Black
TYPE DESIgnaTIOn (HOW TO ORDER)
RK73H
PRODUCT CODE
RK73B, RK73H
1J
1E, 1J, 2A, 2B,
2E, W2H, W3A
RT
TERMINATION
SURFACE MATERIAL
RT: Sn
TD
TP, TD, TE, BK
*Please see “PACKAGING”
2212
NOMINAL
RESISTANCE
RK73B: 3 digits
RK73H: 4 digits
F
D: (±0.5%), F: (±1%)
G: (±2), J: (±5%)
STYLE
TAPING*
TOLERANCE
Contact us when you have control
request for environmental hazardous
material other than the substance
specified by EU-RoHS
Contact our sales representatives before you use our products for applications including
automotives, medical equipment and aerospace equipment. Malfunction or failure of the
products in such applications may cause loss of human life or serious damage .
FEaTURES
DIMEnSIOnS (mm)
SIZE
0402
0603
0805
1206
1210
2010
2512
TYPE
RK73
RK73
RK73
RK73
RK73
RK73
RK73
1E
1J
2a
2B
2E
W2H
W3a
L
1.0
1.6 ± 0.2
2.0 ± 0.2
3.2 ± 0.2
5.0 ± 0.2
6.3 ± 0.2
+ 0.1
– 0.05
■
Excellent anti-sulfuration characteristic due to using high
sulfuration-proof inner top electrode material
■
Anti-leaching nickel barrier terminations
■
Excellent heat resistance and moisture resistance are
ensured by the use of metal glaze thick film
■
High stability and high reliability with the triple-layer
structure of electrode
■
Rated ambient temperature: +70°C
■
Operating temperature range: -55°C…+155°C
■
Taping according to IEC-60 286-3
■
Meets or exceeds IEC 60 115-8, JIS C 5201-8, EIAJ RC-2134B
■
Suitable for reflow and wave soldering
W
0.5 ± 0.05
0.8 ± 0.1
1.25 ± 0.1
1.6 ± 0.2
2.6 ± 0.2
2.5 ± 0.2
3.1 ± 0.2
c
0.2 ± 0.1
0.3 ± 0.1
0.4 ± 0.2
d
0.25
+ 0.05
– 0.1
0.3 ± 0.1
+ 0.2
0.3
– 0.1
0.4
– 0.1
0.65 ± 0.15
+ 0.2
t
0.35 ± 0.05
0.45 ± 0.1
0.5 ± 0.1
0.5 ± 0.3
0.6 ± 0.1
RaTIng
SIZE
TYPE
RK73 1E
RK73 H 1E
RK73 1J
RK73 H 1J
RK73 2a
RK73 H 2a
RK73 2B
RK73 H 2B
RK73 B 2E
1210
RK73 H 2E
2010
2512
RK73 W2H
RK73 H W2H
RK73 W3a
RK73 H W3a
T.C.R.
(ppm/K)
POWER*
RaTIng
MaX.
WORKIng
VOLTagE
50 V
150 V
200 V
MaX.
OVERLOaD
VOLTagE
100 V
200 V
400 V
RESISTanCE RangE
RK73H
D (±0.5%)
E24 • E96
–
100 Ω … 1 MΩ
–
100 Ω … 1 MΩ
–
100 Ω … 1 MΩ
–
100 Ω … 1 MΩ
–
100 Ω … 1kΩ
1.02 kΩ … 1MΩ
–
10 Ω … 1 MΩ
–
10 Ω … 1 MΩ
F (±1%)
E24 • E96
1.02 MΩ … 10 MΩ
10 Ω … 1 MΩ
1.02 MΩ …10 MΩ
10 Ω … 1 MΩ
1.02 MΩ …10 MΩ
10 Ω … 1 MΩ
1.02 MΩ …10 MΩ
10 Ω … 1 MΩ
–
10 Ω … 1 kΩ
1.02 kΩ …1 MΩ
1.02 MΩ …10 MΩ
10 Ω … 1 MΩ
1.02 MΩ …10 MΩ
10 Ω … 1 MΩ
RK73B
g (±2%)
E24
10 Ω … 10 MΩ
–
10 Ω … 10 MΩ
–
10 Ω … 10 MΩ
–
10 Ω … 10 MΩ
–
10 Ω … 1 kΩ
1.1 kΩ … 1 MΩ
–
10 Ω … 10 MΩ
–
10 Ω … 10 MΩ
–
J (±5%)
E24
1 Ω … 10 MΩ
–
1 Ω … 10 MΩ
–
1 Ω … 10 MΩ
–
1 Ω … 10 MΩ
–
1 Ω … 1 kΩ
1.1 kΩ … 1 MΩ
–
1 Ω … 10 MΩ
–
1 Ω … 10 MΩ
–
0402
0603
Specifications given herein may be changed at any time without prior notice.
Please confirm technical specifications before you order/or use.
0805
1206
± 200
0.063 W
± 100
± 200
0.1 W
± 100
± 200
0.125 W
± 100
± 200
0.25 W
± 100
0.5 W
± 200
0.33 W
0.5 W
± 100
0.33 W
± 200
0.75 W
± 100
± 200
1W
± 100
Enter the code H or B
Rated voltage = Power 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“.
PERFORMANCE
Sulfuration test: H
2
S 1000 ppm, 25°C, 90%RH, 720h
Typical results: ∆R ± (0.5% + 0.1Ω)
z
DERaTIng CURVE
Preferred
TOLerANCeS
Ambient temperature (°C)
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
11
Revision: 14. Dec. 2009
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