UR73V
low resistance, low T.C.R. flat chip resistor
EU
features
current
sense
• Current detecting resistors for power supplies,
motor circuits, etc.
• Low resistance (100mΩ or under) and high accuracy
(±1%) for current detection
• High reliability and performance with T.C.R. ±75x10-6/K
• Suitable for flow and reflow solderings
• Products will meet EU RoHS requirements
• AEC-Q200 tested
dimensions and construction
L
c
UR73V
Size
Code
c
Ni
Plating
Protective
Coating
d
.049±.008
(1.25±0.2)
.045±.008
UR73VD 15m~16m .126±.008 .063±.008 .016±.012 (1.15±0.2) .024±.004
2B
(3.2±0.2) (1.6±0.2) (0.4±0.3) .043±.008 (0.6±0.1)
(1206) 18m~20m
(1.1±0.2)
c
W
.039±.008
(1.0±0.2)
22m~27m
Sn
Plating
Ni
Plating
t
Resistive
Film
Ceramic Protective
Substrate Coating
d
t
10m~13m
L
c
Dimensions inches (mm)
W
c
d
UR73V 2A
.079±.008 .049±.008 .016±.008 .016±.008 .024±.004
(0805) 39m~100m (2.0±0.2) (1.25±0.2) (0.4±0.2) (0.4±0.2) (0.6±0.1)
Resistive Inner
Film
Electrode
Ceramic
Substrate
UR73VD
L
.028±.008
UR73VD 10m~16m
.079±.008 .049±.008 .016±.008 (0.7±0.2) .024±.004
2A
(0.6±0.1)
(0805) 18m~36m (2.0±0.2) (1.25±0.2) (0.4±0.2) .024±.008
(0.6±0.2)
W
t
Resistance
Range (Ω)
.039±.012
(1.0±0.3)
+.008
UR73V
.035±.012 .016 -.004 .024±.004
.126±.008
.063±.008
2B
36m~39m
(0.9±0.3)
(3.2±0.2) (1.6±0.2)
(0.6±0.1)
(0.4 +0.2
(1206)
-0.1 )
.026±.012
43m~100m
(0.65±0.3)
30m~33m
Inner
Electrode
Derating Curve
100
100
2A 0.5W
2B 0.5W
2A 0.5W (100°C)
2B 0.5W (125°C)
2B 1W (110°C)
80
% Rated Power
% Rated Power
80
60
40
60
40
20
20
0
-60 -40
-55
-20
0
20
40
60
80 100
70
Ambient Temperature
(°C)
120 140
0
-60 -40
-55
160
155
-20
20
0
40
60
80
100 120 140 160
110 125
155
Terminal Part Temperature
(°C)
For resistors operated at an ambient temperature of 70°C or
above, the power rating shall be derated in accordance with
the above derating curve.
For resistors operated at a terminal part temperature of described for each size or above,
the power rating shall be derated in accordance with the above derating curve.
Please refer to “Introduction of the derating curve based on the terminal part temperature”
in the beginning of our catalog prior use.
ordering information
Type
UR73V
UR73VD:
Face-down
2B
T
Power
Rating
2A: 0.5W
2B: 0.5W
2B: 1W
Termination
Material
T: Sn
TD
Packaging
%
UR73V
TD: 4mm pitch
punch paper
30L0
Nominal
Resistance
“R” indicates decimal on values =
100mΩ Ex: R100 = 100mΩ
“L” indicates decimal on values
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- 1+6.869161+0.85230
- 10+3.9109410+0.48526
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- 50+2.7270350+0.33836
- 100+2.35282100+0.29193
- 250+1.95147250+0.24213
- 500+1.70524500+0.21158
- 1000+1.499491000+0.18605