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Current Detection Resistor CTS 73WE4R015J Ceramic Package Matte Tin Finish for Power Supply Circuits

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Current Detection Resistor CTS 73WE4R015J Ceramic Package Matte Tin Finish for Power Supply Circuits

Power(Watts) : 750mW

Resistance : 15mΩ

Temperature Coefficient : ±100ppm/℃

Operating Temperature : -55℃~+155℃

Type : Thick Film Resistor

Tolerance : ±5%

Description : 750mW 15mΩ ±100ppm/℃ Thick Film Resistor ±5% 1206 Chip Resistor - Surface Mount RoHS

Mfr. Part # : 73WE4R015J

Model Number : 73WE4R015J

Package : 1206

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Product Overview

The 73WLx & 73WEx Series Current Sensing Resistors are ceramic packaged devices designed for accurate current detection and limiting. These resistors offer excellent electrical and thermal characteristics, making them suitable for a wide range of industrial and power supply applications.

Product Attributes

Brand: CTS Corporation
Product Series: 73WLx & 73WEx
Construction: Thick Film
Terminal Finish: Matte Tin (e3)
Packaging: Tape and Reel
Certifications/Compliance: RoHS Compliant (73WLX), Lead Free Design (73WEx)
Applications: Current Detection, Current Limiting, Regulated Battery Circuits, Motor Control, Power Supply, Hard Disk Drives, Inverter/Converter, Industrial Equipment, Infotainment Systems

Technical Specifications

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

Environmental Specifications

Test Description	Test Method	Maximum Delta R [%]	Notes
Temperature Coefficient		200ppm/C	Measured at -55C to 155C. Value varies by resistance range.
Short-Time Overload	Apply 2.5 times the rated voltage, 5 seconds	2.0	Maximum 100V
Insulation Resistance	Measured at terminals and center of resistor by D.C. 100V in 1 minute [JIS C 5202]	Over 10⁹ ohm	15V
Dielectric Withstanding Voltage	Applied at terminals and center of resistor on A.C. 400V, 1 minute [JIS C 5201-1 4.7]	No Breakdown
Resistance to Solder Heat	Immerse in solder, +260C 5C, 10 1 seconds	1.0	No Damage
Solderability	Immerse terminal in solder [Sn3Ag0.5Cu], +245C 0.5C, 3 0.5 seconds [JIS C 5201-1 4.17]	Over 95% Coverage
High Temperature Exposure	1,000 hours @ +155C 2C, bias load 0% power [JIS C 5201-1 4.23.2]	3.0
Change of Temperature	30 minutes @ -55C, 10 minutes @ +25C, 30 minutes @ +155C, 10 minutes @ +25C; 1,000 cycles	1.0	No Damage
Moisture Resistance	MIL-STD-202, Method 106, 0% power	1.0	7a and 7b not required, 1 cycle = 24 hours, 10 cycles
Bias Humidity	1,000 hours @ +85C 2C, 90% - 95% relative humidity, bias load 10%, on time 90 minutes/off time 30 minutes	3.0
Endurance [Rated Load]	1,000 hours @ +70C 3C, bias load, on time 90 minutes/off time 30 minutes	3.0
Resistance to Solvent	Immerse in Isopropyl alcohol, +20C to +25C, 60 5 seconds	No Damage
Terminal Strength [Bending]	3mm bending, 1mm/second, hold 5 seconds	0.1	No Damage

Mechanical Specifications

Model Type	Package Code [Inch/mm]	Dimensions [mm] (L x W x C)	Recommended Pad Layout [mm] (t x d)
73WL4 / 73WE4	1206 [3216]	6.4 x 4.85 x 1.45	1.6 x 0.56
73WL6 / 73WE6	2010 [5025]	5.0 x 3.2 x 0.65	1.3 x 0.5
73WL7 / 73WE7	2512 [6432]	6.3 x 3.2 x 0.56	1.3 x 0.5

2411201003_CTS-73WE4R015J_C4343755.pdf

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