Document No. 008-0336-0 Page 1 - 3 Rev. A
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Series 73Mx
Current Sensing Resistors – Metal Plate
FEATURES
• Very Low Resistance
• Suitable for Current Limiting, Current Detection, Motor Control,
Power Supply and Hard Disk Drives
• High Precision and Excellent Accuracy for Current Detection
• Good Electrical Characteristics
• Surface Mount Package
• Nickel Barrier Solder-Coated Pads [e3]
• Reflow capable per JEDEC J-STD-020, 260°C maximum
• Tape and Reel Packaging
• RoHS/Green Compliant (6/6)
ORDERING INFORMATION
Notes:
1. No dashes or spaces to appear in part number.
2. Example Part Numbers:
73M1R005F [5m Ohms, ±1%]
73M1R100G [100m Ohms, ±2%]
73M2R015F [15m Ohms, ±1%]
4-Digit Resistor Code
"R" indicates decimal point.
Ex.
R005 = 5m Ohms
R100 = 100m Ohms
TOLERANCE
R73M
G = ±2%
F = ±1%
TYPE
1 = 1 Watt Ratin
g
2 = 2 Watt Rating
RESISTOR CODE
STANDARD RESISTOR VALUES
Contact your local CTS Re prese ntat ive or CTS Customer Service for availability.
Not all performance combinations and resistor values may be availab le .
73M1
Standard Resistance Values (Based on EIA E24 Sequence)
4-Digit Code
Resistor
Value Resistor
Code Resistor
Value Resistor
Code Resistor
Value Resistor
Code
0.003ΩR003 0.016ΩR016 0.047ΩR047
0.004ΩR004 0.018ΩR018 0.050ΩR050
0.005ΩR005 0.020ΩR020 0.051ΩR051
0.006ΩR006 0.022ΩR022 0.056ΩR056
0.007ΩR007 0.024ΩR024 0.062ΩR062
0.008ΩR008 0.027ΩR027 0.067ΩR067
0.009ΩR009 0.030ΩR030 0.068ΩR068
0.010ΩR010 0.033ΩR033 0.075ΩR075
0.011ΩR011 0.036ΩR036 0.082ΩR082
0.012ΩR012 0.039ΩR039 0.091ΩR091
0.013ΩR013 0.040ΩR040 0.100ΩR100
0.015ΩR015 0.043ΩR043
73M2
Standard Resistance Values (Based on EIA E24 Sequence)
4-Digit Code
Resistor
Value Resistor
Code Resistor
Value Resistor
Code
0.005ΩR005 0.018ΩR018
0.006ΩR006 0.020ΩR020
0.007ΩR007 0.022ΩR022
0.008ΩR008 0.024ΩR024
0.009ΩR009 0.027ΩR027
0.010ΩR010 0.030ΩR030
0.011ΩR011 0.033ΩR033
0.012ΩR012 0.036ΩR036
0.013ΩR013 0.039ΩR039
0.015ΩR015 0.040ΩR040
0.016ΩR016
Document No. 008-0336-0 Page 2 - 3 Rev. A
Series 73Mx
Current Sensing Resistor – Metal Plate
ELECTRICAL CHARACTERISTICS
Type Rated
Wattage
(
Watts
)
Resistance
(Ohms) Tolerance
(%)
T
.C.R
(ppm/°C) Rated A mbient
Temperature
Operating
Temperature
Ran
g
e
0.003Ω ≤ R < 0.005Ω: ±300
0.005Ω ≤ R < 0.010Ω: ±180
0.010 - 0.100 ±1 0.010Ω ≤ R ≤ 0.100Ω: ±100
0.005 - 0.009 ±1
,
±2 R < 0.010Ω: ±200
0.010 - 0.040 ±1 R ≥ 0.010Ω: ±100 +70°C -55°C to +180°C
±1, ±2 +70°C -55°C to +180°C73M1 1 0.003 - 0.009
73M2 2
MECHANICAL SPECIFICATION
PACKAGE DRAWING
Dimensions
(mm) LWT a b c
73M1 6.2 ±0.3 3.1 ±0.2 1.0 ±0.2 2.5 ±0.2 0.8 ±0.2 1.2 ±0.3
73M2 6.4 ±0.3 3.5 ±0.2 1.2 Max. 3.2 ±0.2 --- 1.0 ±0.2
L
W
T
b
c
L W
c
T
a
c
a
b
c
73M1
73M2
RECOMMENDED LAND PATTERN
A
C
B
ABC
73M2 3.50 8.30 4.00
Type D i mensions
(mm)
73M1 2.90 8.10 3.60
Document No. 008-0336-0 Page 3 - 3 Rev. A
Series 73Mx
Current Sensing Resistor – Metal Plate
PACKAGING INFORM ATION
EMBOSSED TAPE [mm]
Type A B F L M
73M1 3.5 ±0.1 6.6 ±0.1 8.0 ±0.10 1.3 ±0.1 0.3 ±0.05
+0.1
-0.0
J
1.5 ±0.2
73M2 4.0 ±0.1 6.9 ±0.1 8.0 ±0.10 1.5 1.4 ±0.1 0.25 ±0.05
F
J
M
L
REEL [mm]
73M1 1,000 15.4 ±1.0
73M2 1,000 15.4 ±1.0
A
(mm)
Quantity
Per Reel
Type
