Current Sensing Resistor CTS 73WE6R010F Ceramic Package With Matte Tin Terminal Finish

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Product Description

Product Overview

The CTS 73WLx & 73WEx Series Current Sensing Resistors are ceramic packaged devices designed for accurate current detection and limiting. They offer excellent electrical and thermal characteristics, making them suitable for a wide range of industrial and electronic applications, including regulated battery circuits, motor control, and power supplies.

Product Attributes

Brand: CTS
Product Series: 73WLx & 73WEx
Construction: Thick Film
Terminal Finish: Matte Tin (e3)
Certifications: RoHS Compliant (73WLX), Lead-Free Design (73WEx)
Packaging: Tape and Reel
Reflow Capable: per JEDEC J-STD-020, +260C maximum

Technical Specifications

Model Type	Package Size [Inch (mm)]	Power Rating @ +70C [Watts]	Resistance Range [m]	Tolerance [%]	Operating Temperature Range [C]	Temperature Coefficient [ppm/C]	Rated Voltage [V]	Overload Voltage [max V]
73WL4 / 73WE4	1206 [3216]	0.75	5 - 910	1, 5	-55 to +155	200 (for 100-910), 500 (for 10-33), 350 (for 36-91)	200	400
73WL6 / 73WE6	2010 [5025]	1.0	5 - 910	1, 5	-55 to +155	200 (for 100-910), 500 (for 10-33), 350 (for 36-91)	200	400
73WL7 / 73WE7	2512 [6432]	2.0	5 - 910	1, 5	-55 to +155	200 (for 100-910), 500 (for 10-33), 350 (for 36-91)	200	400

Applications

Current Detection
Current Limiting
Regulated Battery Circuits
Motor Control
Power Supply
Hard Disk Drives
Inverter/Converter
Industrial Equipment
Infotainment Systems

Environmental Parameters

Test Description	Maximum Delta R [%]	Notes
Temperature Coefficient	200ppm/C	1 Measured temperature at -55C to 155C
Short-Time Overload	2.0	Apply 2.5 times the rated voltage, 5 seconds, maximum 100V
Insulation Resistance	Over 10 9 ohm	Measured at terminals and center of resistor by D.C. 100V 15V in 1 minute [JIS C 5202]
Dielectric Withstanding Voltage	No Breakdown	Applied at terminals and center of resistor on A.C. 400V, 1 minute [JIS C 5201-1 4.7]
Resistance to Solder Heat	1.0	No Damage Immerse in solder, +260C 5C, 10 1 seconds
Solderability	Over 95% Coverage	Immerse terminal in solder [Sn3Ag0.5Cu], +245C 0.5C, 3 0.5 seconds [JIS C 5201-1 4.17]
High Temperature Exposure	3.0	1,000 hours @ +155C 2C, bias load 0% power [JIS C 5201-1 4.23.2]
Change of Temperature	1.0	No Damage 30 minutes @ -55C, 10 minutes @ +25C, 30 minutes @ +155C, 10 minutes @ +25C; 1,000 cycles
Moisture Resistance	1.0	MIL-STD-202, Method 106, 0% power 7a and 7b not required, 1 cycle = 24 hours, 10 cycles
Bias Humidity	3.0	1,000 hours @ +85C 2C, 90% - 95% relative humidity, bias load 10%, on time 90 minutes/off time 30 minutes
Endurance [Rated Load]	3.0	1,000 hours @ +70C 3C, bias load, on time 90 minutes/off time 30 minutes
Resistance to Solvent	No Damage	Immerse in Isopropyl alcohol, +20C to +25C, 60 5 seconds
Terminal Strength [Bending]	0.1	No Damage 3mm bending, 1mm/second, hold 5 seconds

Mechanical Specifications

Package Dimensions [mm]

Model Type	C	L	W
73WL4 / 73WE4	1.45	6.4	4.85
73WL6 / 73WE6	0.65	3.2	2.65
73WL7 / 73WE7	1.3	5.0	4.0

Recommended Pad Layout [mm]

Model Type	t	A	B
73WL4 / 73WE4	1.0 0.1	2.00	3.57
73WL6 / 73WE6	1.0 0.1	6.6 0.1	5.3 0.1
73WL7 / 73WE7	0.80 0.20	3.4 0.1	2.9 0.1

Packaging Information

Tape and Reel [mm]

Model Type	Paper Tape [mm] t	Embossed Tape [mm] A	Embossed Tape [mm] B	Reel [mm] W	Reel [mm] M	Reel [mm] A	Reel [mm] B	Reel [mm] C	Reel [mm] D	Quantity Per Reel
73WL4 / 73WE4	0.56 0.15	0.5 0.2	0.3 0.2	60	21.9 0.6	13.5 0.6	2.5 0.6	180	4,000
73WL6 / 73WE6	0.56 0.015	0.5 0.2	0.3 0.2	60	21.9 0.6	13.5 0.6	2.5 0.6	180	4,000
73WL7 / 73WE7	0.5 0.2	0.9 0.2	0.6 0.2	60	21.9 0.6	17.0 1.4	13.0 1.4	180	5,000