Series 73WLx & 73WEx
Current Sensing Resistors
Wide Terminal Chip Type
FEATURES
Thick Film Construction – Wide Terminal Configuration
Power Rating @ +70°C, Options 0.75 – 2 Watts
Resistance Range, 5 – 910 milliohms
Operating Temperature to +155°C
EIA Standard Package Sizes
Terminal Finish – Tin (e3)
Reflow capable per JEDEC J-STD-020, 260°C maximum
Tape and Reel Packaging
Lead-Free Design – 73WEx
RoHS Compliant in Accordance with EU Directive 2011/65/EU – 73WLx
- Lead-Free Termination Finish
- Exemption 7(c)-I, Electrical and electronic components containing lead [Pb] in glass
APPLICATIONS
Ideal for applications such as current detection and limiting, regulated battery circuits, motor control, power supply,
hard disk drives, inverter/converter, industrial equipment and automotive.
ORDERING INFORMATION
73
TYPE
WL = 4-Digit Resistor Code
WE = 4-Digit Resistor Code
PACKAGE CODE
4 = 1206 [3216]
6 = 2010 [5025]
7 = 2512 [6432]
RESISTOR CODE
4-Digit Resistor Codes
"R" indicates decimal point.
Ex.
R470 = 0.47 Ohms
R020 = 0.020 Ohms
Notes:
1. No dashes or spaces to appear in part number.
2. Example Part Numbers:
73WL4R100F
73WL6R024J
73WL7R750J
73WE4R016F
73WE6R007J
73WE7R091F
[1206 pkg., 0.100 Ohms, ±1%]
[2010 pkg., 0.024 Ohms, ±5%]
[2512 pkg., 0.750 Ohms, ±5%]
[1206 pkg., 0.016 Ohms, ±1%]
[2010 pkg., 0.007 Ohms, ±5%]
[2512 pkg., 0.091 Ohms, ±1%]
R
TOLERANCE
J = ±5%
F = ±1%
Not all performance combinations and resistor values may be available.
Contact your local CTS Representative or CTS Customer Service for availability.
Document No. 008-0543-0
Page 1 - 4
Rev. B
www.ctscorp.com
Series 73WLx & 73WEx
Current Sensing Resistor – Wide Terminal
MECHANICAL SPECIFICATION
PACKAGE DRAWING
Type
73WL4
73WE4
73WL6
73WE6
73WL7
73WE7
Package
Code
Inch [mm]
1206 [3216]
2010 [5025]
2512 [6432]
Dimensions
[mm]
t
+0.15
0.55
-0.05
0.56 ±0.15
0.56 ±0.15
L
3.2 ±0.15
5.00 ±0.20
6.30 ±0.20
W
1.6 ±0.15
2.50 ±0.20
3.20 ±0.20
c
0.30 ±0.20
0.50 ±0.20
0.50 ±0.20
0.60 ±0.20
d
0.50 ±0.20
0.30 ±0.20
0.60 ±0.20
0.50 ±0.20
0.90 ±0.20
0.60 ±0.20
NOTES
1. Terminal:
Base Metal – Silver [Ag] or Copper [Cu] plate.
Barrier Plating - Nickel [Ni].
Finish Plating – Matte Tin [Sn].
RECOMMENDED LAND PATTERN
Type
73WL4
73WE4
73WL6
73WE6
73WL7
73WE7
Dimensions
[mm]
C
L
W
0.65 3.20 2.65
1.30 5.00 4.00
1.45 6.40 4.85
MARKING
Type
73WL4
73WL6
73WL7
73WE4
73WE6
73WE7
Part Marking
Rxxx = "R" is the decimal
point and 3 digits [E24] are
significant values. See
resistor tables for codes.
None
Document No. 008-0543-0
Page 3 - 4
Rev. B
Electronics Design Contest
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