RESISTORS
RESISTORS
FLAT CHIP
THICK FILM (5% • 2%)
gEnERaL PURPOSE
RK73B
STRUCTURE
1
2
3
4
5
6
7
8
9
10
Ceramic substrate
Top termination
Bottom termination
Resistive layer
Glass layer
Trimming cut
Protective layer
End termination
Diffusion barrier
Solder plating
(~ 11 µm)
(~ 11 µm)
(~ 11 µm)
(~ 11 µm)
(~ 25 µm)
(~ 0.05 µm)
(3 ~ 12 µm)
(3 ~ 12 µm)
(Typical values)
IDEnTIFICaTIOn
TYPE
RK73B 1F … RK73B 1E
RK73B 1J ... RK73B W3a
COaTIng
COLOR
Black
MaRKIng
None
White, 3 digits
Products with Pb-free terminations
meet EU-RoHS requirements
TYPE DESIgnaTIOn (HOW TO ORDER)
RK73B
PRODUCT CODE
1J
STYLE
1F…W3A
T
TERMINATION**
SURFACE MATERIAL
TD
TAPING*
*Please see “PACKAGING”
103
NOMINAL
RESISTANCE
3 digits
J
TOLERANCE
J: (±5%)
G: (±2%)
T: Sn (L: Sn/Pb)
(G: Au)
**Style 1F and 1H are only available in "T"
FEaTURES
■
RuO
2
thick film resistor element
■
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
■
Also available with gold plated electrodes in size 1E, 1J and
2A (10Ω…1MΩ)
■
Rated ambient temperature: +70° C
■ AEC-Q200 testdata are available on request
■
Taping according to IEC-60 286-3
■
Meets or exceeds IEC 60 115-8, JIS C 5201-8, CECC 40 401-802,
EIAJ RC-2134B
■
Suitable for reflow and wave soldering
DIMEnSIOnS (mm)
SIZE
01005
0201
0402
0603
0805
1206
1210
2010
2512
TYPE
RK73B 1F
RK73B 1H
RK73B 1E
RK73B 1J
RK73B 2a
RK73B 2B
RK73B 2E
RK73B W2H*
RK73B W3a*
0.4
0.6
1.0
1.6
2.0
L
± 0.02
± 0.03
+ 0.1
– 0.05
± 0.2
± 0.2
3.2 ± 0.2
5.0 ± 0.2
6.3 ± 0.2
W
c
d
0.11 ± 0.03
0.15 ± 0.05
0.05
0.25
+ 0.1
–
0.3 ± 0.1
0.2
0.3
+ 0.1
–
+ 0.2
t
0.13 ± 0.02
0.23 ± 0.03
0.35 ± 0.05
0.45 ± 0.1
0.5 ± 0.1
0.2 ± 0.02 0.1 ± 0.03
0.3 ± 0.03 0.1 ± 0.05
0.5 ± 0.05 0.2 ± 0.1
0.8 ± 0.1
0.3 ± 0.1
1.25 ± 0.1
0.4 ± 0.2
1.6 ± 0.2
2.6 ± 0.2
0.5 ± 0.3
2.5 ± 0.2
3.1 ± 0.2
0.4
– 0.1
0.6 ± 0.1
0.65 ± 0.15*
RaTIng
SIZE
01005
0201
0402
0603
0805
1206
1210
2010
2512
TYPE
RK73B 1F
RK73B 1H
T.C.R.
(ppm/K)
POWER*
RaTIng
MaX.
WORKIng
VOLTagE
15 V
25 V
50 V
+ 0.2
* RK73B 2H and RK73B 3A are also still available (different "d" dimensions = 0.4 mm)
- 0.1
MaX.
OVERLOaD
VOLTagE
30 V
50 V
100 V
RESISTanCE RangE (E24)
g (± 2%)
10 Ω … 6.2 kΩ
6.8 kΩ … 1MΩ
–
10 Ω … 10 MΩ
1
Ω … 10 MΩ
–
1
Ω … 10 MΩ
1.1 MΩ … 10 MΩ
1
Ω … 1 MΩ
6.2 MΩ . . . 10 MΩ
1
Ω … 5.6 MΩ
—
10
Ω
. . . 1 kΩ
1.1 kΩ . . . 5.6 MΩ
J (± 5%)
10 Ω … 6.2 kΩ
6.8 kΩ … 1 MΩ
1 Ω … 9.1 Ω
10 Ω … 10 MΩ
1
Ω … 10 MΩ
11 MΩ … 22 MΩ
1
Ω… 10 MΩ
1.1 MΩ … 10 MΩ
1
Ω … 1 MΩ
6.2 MΩ … 22 MΩ
1
Ω … 5.6 MΩ
6.2 MΩ … 10 MΩ
1
Ω
. . . 1 kΩ
1.1 kΩ . . . 5.6 MΩ
OPERaTIng
TEMPERaTURE
RangE
- 55° C … + 125° C*
Specifications given herein may be changed at any time without prior notice.
Please confirm technical specifications before you order/or use.
RK73B 1E
RK73B 1J
RK73B 2a
RK73B 2B
RK73B 2E
RK73B W2H
RK73B W3a
± 300
0.03 W
± 250
± 400
0.05 W
± 200
± 200
0.063 W
± 400
0.1 W
± 200
± 400
0.125 W
± 200
± 400
0.25 W
± 200
± 400
0.33 W
0.5 W
± 200
0.33 W
± 400
0.75 W
± 200
± 400
1W
± 200
150 V
200 V
200 V
(500 V)**
200 V
- 55° C . . . +155° C*
400 V
400 V
(500 V)**
—
10 Ω … 5.6 MΩ
—
10 Ω … 5.6 MΩ
6.2 MΩ … 22 MΩ
1
Ω … 5.6 MΩ
6.2 MΩ … 22 MΩ
1
Ω … 5.6 MΩ
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“ .
** Please contact KOA about the increased max. working voltage and the max. overload voltage marked with ( ).
Care should be taken, that RK73B1F may be damaged when static electricity occurs and is applied in the equipment assembly process.
z
Preferred
TOLerANCe
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
6
Revision: 14. Dec. 2009
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 .
Contact us when you have
control request for environmental
hazardous material other than the
substance specified by EU-RoHS
RESISTORS
RESISTORS
FLAT CHIP
THICK FILM
RK73
PERFORManCE
TEST
Life test at 70° C rated power (P
70
)
Rapid change of temperature
Damp heat steady state
High temperature exposure
TEST COnDITIOnS
IEC 60115-1 4.25.1
70° C ± 2° C, 1000 h; 1.5 h On / 0.5 h Off cycle
IEC 60115-1 4.19
-55° C (30 min) /+125° C (30 min); 100 cycles
IEC 60115-1 4.24
40° C ± 2° C; 90%…95% RH; 1000h
IEC 60115-1 4.25.3
+125° C / 1000h (1F, 1H); +155 °C / 1000h (1E...W3A)
IEC 60115-1 4.13
Rated voltage x 2.5 for 5 sec.
2B: Rated voltage x 2 for 5 sec.
IEC 60115-1 4.8
Cycle: +25° C/-55° C/+25 °C/+ 125° C/+25° C
IEC 60115-1 4.31
Bending: 5 mm (1J, 2A, 2B); 3 mm (1H, 1E); 2 mm (2E, 2H, 3A)
IEC 60115-1 4.18
10 ± 1 sec. at 260 ± 5° C solder bath temperature
1J, 2A, 2B:
all others:
1F:
all others:
1F:
1J, 2A, 2B:
all others:
1F:
all others:
1F:
all others:
TYPICaL TEST RESULTS
∆R ± (0.75% + 0.05 Ω)
∆R ± (1% + 0.05 Ω)
∆R ± (0.5% + 0.05 Ω)
∆R ± (0.3% + 0.05 Ω)
∆R ± (1.5% + 0.05 Ω)
∆R ± (0.75% + 0.05 Ω)
∆R ± (1% + 0.05 Ω)
∆R ± (0.5% + 0.05 Ω)
∆R ± (0.3% + 0.05 Ω)
∆R ± (1% + 0.05 Ω)
∆R ± (0.5% + 0.05 Ω)
Within specified T .C .R .
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 .
Specifications given herein may be changed at any time without prior notice.
Please confirm technical specifications before you order/or use.
Short time overload
T .C .R .
Bending test
∆R ± (0.5% + 0.1 Ω)
1F, 1H (10 Ω
;
R
; 1MΩ):
∆R ± (0.75% + 0.05 Ω)
1E~W3A (R < 10 Ω, R >1MΩ): ∆R ± (1% + 0.05 Ω)
all others:
∆R ± (0.5% + 0.05 Ω)
Resistance to soldering heat
DERaTIng CURVE
SURFaCE TEMPERaTURE RISE
TEMPERATURE RISE (°C)
% RATED POWER
OnE-PULSE LIMITIng ELECTRIC POWER
KOa RK73 Flat Chip Resistors (Diagram for reference only)
PULSE POWER IN WATTS (P
O
)
1.E-06
1µs
1.E-05
1.E-04
1.E-03
1.E-02
1.E-01
PULSE DURATION TIME IN SECONDS (t)
1. E+00
1s
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
8
Revision: 14. Dec. 2009
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