resistors
SR73
lo-ohm 0.5%, 1%, 2%, 5% tolerance thick film
current sense resistor
EU
features
• RuO2 thick film resistor element
• Marking: 1H,1E: no marking on black protective coating
2A~W3A: three or four digit marking on indigo
protective coating; 1J: No marking
• Products with lead-free terminations meet EU RoHS
requirements. EU RoHS regulation is not intended for
Pb-glass contained in electrode, resistor element and glass.
• AEC-Q200 Qualified: 0402 (1E), 0603 (1J), 0805 (2A),
1206 (2B), 1210 (2E), 2010 (2H/W2H), 2512 (3A/W3A)
dimensions and construction
Type
L
(Inch Size Code)
L
t
1H
(0201)
W
.039
.02
(1.0
(0.5
1J
(0603)
.063±.008
(1.6±0.2)
2A
(0805)
.079±.008 .049±.004 .016±.008
(2.0±0.2) (1.25±0.1) (0.4±0.2)
2B
(1206)
c
.024±.001 .012±.001 .004±.002 .006±.002 .009±.001
(0.6±0.03) (0.3±0.03) (0.1±0.05) (0.15±0.05) (0.23±0.03)
1E
(0402)
c
.063±.008
.126±.008 (1.6±0.2)
(3.2±0.2) .102±.008
(2.6±0.2)
Solder
Plating
Ni
Plating
t
d
Dimensions inches (mm)
W
c
d
Protective
Coating
Resistive Inner
Film
Electrode
Ceramic
Substrate
2E
(1210)
2H
(2010)
W2H
(2010)
3A
(2512)
W3A
(2512)
+.004
-.002
+0.1 )
-0.05
+.004
-.002
+0.1 )
-0.05
.01±.004
(0.25±0.1)
+.006
-.004
+0.15 )
-0.1
.014±.004 .014±.004 .018±.004
(0.35±0.1) (0.35±0.1) (0.45±0.1)
.031
(0.8
.197±.008 .098±.008
(5.0±0.2)
(2.5±0.2)
.01±.004 .014±.002
(0.25±0.1) (0.35±0.05)
.012
(0.3
.016
(0.4
.02±.012
(0.5±0.3)
.02±.004
(0.5±0.1)
+.008
-.004
+0.2 )
-0.1
.026±.006 .024±.004
(0.65±0.15) (0.6±0.1)
.016
(0.4
.248±.008 .122±.008
(6.3±0.2)
(3.1±0.2)
+.008
-.004
+0.2 )
-0.1
+.008
-.004
+0.2 )
-0.1
.026±.006
(0.65±0.15)
ordering information
New Part #
SR73
2B
Type
Size
1H
1E
1J
2A
2B
2E
W2H
W3A
2H
3A
T
Termination
Material
T: Sn
L: SnPb (1E,
1J, 2A, 2B, 2E,
2H, 3A)
G: Au (2A: 0.1Ω 10Ω - contact
factory)
TD
Packaging
TCM: 0201 only:
7" 2mm pitch pressed paper
TPL:0402 only: 2mm pitch punch paper
TP: 0402, 0603, 0805: 7" 2mm pitch
punch paper
TD: 0603, 0805, 1206, 1210:
7" 4mm pitch punched paper
TDD: 0603, 0805, 1206, 1210:
10" paper tape
TE: 0805, 1206, 1210, 2010 & 2512:
7" embossed plastic
TED: 0805, 1206, 1210, 2010 & 2512:
10" embossed plastic
For further information on packaging,
please refer to Appendix A
1R00
Nominal
Resistance
±2%, ±5%: 2 significant figures
+ 1 multiplier “R” indicates
decimal on value <10Ω
±1%: 3 significant figures
+ 1 multiplier “R” indicates
decimal on value <100Ω
All values less than 0.1Ω
(100mΩ) are expressed in
mΩ with “L” as decimal
Example: 20mΩ = 20L
(3-digit)
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
36
F
Tolerance
D: ±0.5%
F: ±1%
G: ±2%
J: ±5%
1/17/13
KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
