LOW OHM
THick FiLM
CURRENT SENSiNg Chip
SR73
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
(Ni)
Solder plating
iDENTiFiCATiON
pRODUCT CODE
SR73 1h
SR73 1E
SR73 1J (1%)
SR73 1J (2%, 5%)
SR73 2A…W3A (2%, 5%)
SR73 2A…W3A (0.5%, 1%)
COATiNg
COLOR
Black
Indigo
MARKiNg
None
White, 3 digits
White, 4 digits
products with pb-free terminations
meet EU-RohS requirements
TYpE DESigNATiON (hOW TO ORDER)
SR73
PRODUCT CODE
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.
2A
STYLE
1H…W3A
T
TERMINATION
SURFACE MATERIAL
T: Sn
(L: Sn/Pb)
(G: Au)
TD
TAPING*
R475
NOMINAL
RESISTANCE
D, F: 4 digits
J, G: 3 digits
F
TOLERANCE
D: (±0.5%)
F: (±1%)
G: (±2%)
J: (±5%)
Contact us when you have control request
for environmental hazardous material other
than the substance specified by EU-RoHS
*Please see “PACKAGING”
FEATURES
DiMENSiONS (mm)
SiZE
0201
0402
0603
0805
1206
1210
2010
2512
TYpE
SR73 1h
SR73 1E
SR73 1J
SR73 2A
SR73 2B
SR73 2E
SR73 W2h*
SR73 W3A*
L
0.6 ± 0.03
0.1
1.0
+ 0.05
–
1.6 ± 0.2
2.0 ± 0.2
3.2 ± 0.2
5.0 ± 0.2
6.3 ± 0.2
W
0.3 ± 0.03
0.1
0.5
+ 0.05
–
0.15
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
0.1 ± 0.05
0.25 ± 0.1
0.35 ± 0.1
0.4 ± 0.2
d
0.15 ± 0.05
0.25 ± 0.1
0.35 ± 0.1
+ 0.2
0.3
– 0.1
0.4
0.5 ± 0.3
0.65 ± 0.15*
+ 0.2
– 0.1
■
RuO
2
thick film resistor element
■
Anti-leaching nickel barrier terminations
■
High reliability and performance with T.C.R.
±100 ppm/K and resistance tolerance ±1%
■
Also available with gold plated electrodes in sizes 1J, 2A, 2B (0.1Ω…10Ω)
■
Rated ambient temperature: + 70° C
■
Operating temperature range: - 55° C … + 150° C (1H: + 125°C)
■
The most suitable current detecting resistor
for power supply, motor circuits etc.
■
Ideal for use in computers, HDD, cellular phones, motor circuits etc.
■
Suitable for reflow and wave soldering
■
AEC-Q200 testdata are available on request
■
Meets or exceeds IEC 60 115-8, JIS C 5201-8, EIAJ RC-2134B
t
0.23
0.35
0.45
0.5
± 0.03
± 0.05
± 0.1
± 0.1
+ 0.2
– 0.1
0.6 ± 0.1
* SR73 2H and SR73 3A are also still available (different "d" dimensions = 0.4
mm)
RATiNg
D (±0.5%) E96 · E24
0...+400
–
0201
SR73 1h
0.1 W
1.00 V
2.50 V
0...+500
–
± 200
–
0.125 W
1.11 V
0402
SR73 1E
± 250
2.79 V
–
(0.166 W)*
2
(1.28 V)*
2
± 300
–
0603
SR73 1J
± 200
0.2 W
1.41 V
3.53 V
–
± 100
0.15 Ω ~ 10 Ω
± 200
0.25 W
1.58 V
–
0805
SR73 2A
3.95 V
± 500
(0.33 W)*
2
(1.81 V)*
2
–
± 800
–
± 100
0.15 Ω ~ 10 Ω
± 200
0.33 W
1.81 V
–
1206
SR73 2B
4.54 V
± 500
(0.5 W)*
2
(2.32 V)*
2
–
± 800
–
± 100
–
± 200
0.5 W
2.23 V
–
1210
SR73 2E
5.59 V
± 500
(0.66 W)*
2
(2.56 V)*
2
–
± 1000
–
± 100
–
± 200
–
2010
SR73 W2h
0.75 W
2.73 V
6.84 V
± 500
–
± 800
–
± 100
–
± 200
–
2512
SR73 W3A
1.0 W
3.16 V
7.90 V
± 500
–
± 800
–
1
:
*
For resistors operated at an ambient temperature of +70°C or above, the power rating shall be derated.
*
2:
Please contact KOA if the part is used at marked, increased power.
*
3:
SR73 1H and SR73 1E only in E24 values.
Rated voltage = Power rating x resistance value or max. working voltage, whichever is lower.
SiZE
TYpE
T.C.R.
(ppm/K)
pOWER*
1
RATiNg
MAX.
WORKiNg
VOLTAgE
MAX.
OVERLOAD
VOLTAgE
RESiSTANCE RANgE AND TOLERANCES
F (±1%) E96 · E24
1 Ω ~ 10 Ω*
3
—
0.51 Ω ~ 10 Ω*
3
0.22 Ω ~ 0.47 Ω*
3
0.1 Ω ~ 0.2 Ω*
3
0.1 Ω ~ 10 Ω
0.1 Ω ~ 10 Ω
—
—
—
0.1 Ω ~ 10 Ω
—
—
—
0.1 Ω ~ 10 Ω
—
—
—
0.1 Ω ~ 10 Ω
—
—
—
0.1 Ω ~ 10 Ω
—
—
—
g (±2%) E24
J (±5%) E24
—
0.27 Ω ~ 10 Ω
NEW
0.18 Ω ~ 0.24 Ω
—
0.51 Ω ~ 10 Ω
0.51 Ω ~ 10 Ω
0.22 Ω ~ 0.47 Ω
0.22 Ω ~ 0.47 Ω
0.1 Ω ~ 0.2 Ω
0.1 Ω ~ 0.2 Ω
0.1 Ω ~ 10 Ω
0.1 Ω ~ 10 Ω
—
—
0.1 Ω ~ 10 Ω
0.1 Ω ~ 10 Ω
—
0.051 Ω ~ 0.091 Ω
—
0.030 Ω ~ 0.047 Ω
—
—
0.1 Ω ~ 10 Ω
0.1 Ω ~ 10 Ω
—
0.056 Ω ~ 0.091 Ω
—
0.030 Ω ~ 0.051 Ω
—
—
0.1 Ω ~ 10 Ω
0.047 Ω ~ 10 Ω
—
0.036 Ω ~ 0.043 Ω
—
0.024 Ω ~ 0.033 Ω
—
0.1 Ω ~ 10 Ω
0.1 Ω ~ 10 Ω
—
0.056 Ω ~ 0.091 Ω
––
0.033 Ω ~ 0.051 Ω
—
—
0.1 Ω ~ 10 Ω
0.1 Ω ~ 10 Ω
—
0.056 Ω ~ 0.091 Ω
—
0.039 Ω ~ 0.051 Ω
Specifications given herein may be changed at any time without prior notice.
Please confirm technical specifications before you order/or use.
z
Preferred
TOLerANCeS
Revision: 14. Dec. 2009
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
25
LOW OhM
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