UR73
resistors
current sensing chip resistor
EU
features
•
•
•
•
•
•
Very low resistance, high precision reliability
Suitable for reflow and flow soldering
Utilization of thick film
Low T.C.R. achieved (±100 ppm/°C)
Marking: Indigo body color with white marking
Products with lead-free terminations meet
EU RoHS requirements
dimensions and construction
UR73
a
L
a
Size
Code
D1E
Resistance
Range
24m ~ 100m
L
Dimensions
inches
(mm)
W
h
a
b
.039
+.004
.020
+.004
-.002
-.002
+0.1
(1.0
-0.05
)
W
.016±.002 .010±.004 .012±.004
+0.1
(0.5
-0.05
) (0.4±0.05) (0.25±0.1) (0.3±0.1)
h
b
Protective
Coating
Resistive Inner
Film
Electrode
Ni
Plating
D1J
.022±.004
+.005
10m ~ 27m
.063±.008 .031
-.004
.02±.004 .014±.004
(0.55±0.1)
30m ~ 100m
(1.6±0.2) (0.8
+0.15
) (0.5±0.1) (0.35±0.1)
.014±.004
-0.1
(0.35±0.1)
10m ~ 16m
.079±.008 .049±.008 .022±.004 .016±.008
18m ~ 30m
(2.0±0.2) (1.25±0.2) (0.55±0.1) (0.4±0.2)
.024±.008
(0.6±0.2)
.02±.008
(0.5±0.2)
D2A
Ceramic
Substrate
UR73D
a
L
2A
a
D2B
33m ~ 100m
.079±.008 .049±.008 .02±.004 .016±.008
.012
+.008
-.004
(0.3
+0.2
)
-0.1
(2.0±0.2) (1.25±0.2) (0.55±0.1) (0.4±0.2)
W
Solder
Plating
Ni
Plating
b
Resistive
Film
Protective
Ceramic
Substrate Coating
Inner
Electrode
.039±.008
10m ~ 16m
.126±.008 .063±.008 .024±.004 .020±.008
(1.0±0.2)
18m ~ 27m
(3.2±0.2) (1.6±0.2) (0.6±0.1) (0.5±0.2)
.031±.008
(0.8±0.2)
+.008
.126±.008 .063±.008 .024±.004 .020±.012 .016
-.004
30m ~ 100m
(3.2±0.2) (1.6±0.2) (0.6±0.1) (0.5±0.3) (0.4
+0.2
)
-0.1
2B
h
D2H
.063±.012
10m ~ 30m
.197±.008 .098±.008 .026±.004 .026±.012
(1.6±0.3)
33m ~ 100m
(5.0±0.2) (2.5±0.2) (0.65±0.1) (0.65±0.3)
.026±.012
(0.65±0.3)
.079±.012
10m ~ 30m
.248±.008 .122±.008 .024±.004 .031±.012
(2.0±0.3)
33m ~ 100m
(6.3±0.2) (3.1±0.2) (0.6±0.1) (0.8±0.3)
.031±.012
(0.8±0.3)
D3A
ordering information
New Part #
UR73
Type
UR73
UR73D
2A
Power Rating
1E: 0.125W
1J: 0.2W
2A: 0.25W
2B: 0.5W
2H: 0.75W
3A: 1W
T
Termination
Material
T: Sn
TD
Packaging
TP: 2mm pitch
punch paper
(1E)
TD: 7" punched
paper tape
(1J, 2A, 2B)
TE: 7" embossed plastic
(2H, 3A)
R10
Nominal
Resistance
All values less than
0.1Ω (100mΩ) are
expressed in mΩ with
“L” as decimal.
Ex: 20mΩ = 20L0
F
Tolerance
F: ±1%
For further information on packaging, please refer to Appendix A.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
12/16/08
36
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
KOA [ KOA SPEER ELECTRONICS, INC. ]
