Chip Common Mode Choke Coil Murata DLW21SN121SQ2L Component for Electronic Noise and EMI Suppression

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Product Description

Product Overview

This reference specification applies to Murata's Chip Common Mode Choke Coil, designed for noise suppression in electronic circuits. These coils offer effective common mode impedance to mitigate unwanted electromagnetic interference.

Product Attributes

Brand: MURATA MFG.CO.,LTD
Origin: Japan (implied by manufacturer)
Type: Chip Common Mode Choke Coil
Category: Winding Type

Technical Specifications

Murata Part Number	Common Mode Impedance (at 100MHz, )	Rated Voltage (V(DC))	Rated Current (mA)	DC Resistance ( max.)	Insulation Resistance (M min.)	Operating Temperature	Storage Temperature
DLW21SN371SQ2L	370 25 %	50	280	0.45	10	-40 to +85C	-40 to +85C
DLW21SN371SQ2B	370 25 %	50	280	0.45	10	-40 to +85C	-40 to +85C
DLW21SN261SQ2L	260 25 %	300	300	0.40	10	-40 to +85C	-40 to +85C
DLW21SN261SQ2B	260 25 %	300	300	0.40	10	-40 to +85C	-40 to +85C
DLW21SN181SQ2L	180 25 %	330	330	0.35	10	-40 to +85C	-40 to +85C
DLW21SN181SQ2B	180 25 %	330	330	0.35	10	-40 to +85C	-40 to +85C
DLW21SN121SQ2L	120 25 %	370	370	0.30	10	-40 to +85C	-40 to +85C
DLW21SN121SQ2B	120 25 %	370	370	0.30	10	-40 to +85C	-40 to +85C
DLW21SN900SQ2L	90 25 %	330	330	0.35	10	-40 to +85C	-40 to +85C
DLW21SN900SQ2B	90 25 %	330	330	0.35	10	-40 to +85C	-40 to +85C
DLW21SN670SQ2L	67 25 %	400	400	0.25	10	-40 to +85C	-40 to +85C
DLW21SN670SQ2B	67 25 %	400	400	0.25	10	-40 to +85C	-40 to +85C

Electrical Performance

Item	Specification	Test Method
Common Mode Impedance (Zc)	Meet item 3.	Measuring Equipment : KEYSIGHT4291A or the equivalent Measuring Frequency : 1001MHz
Withstanding Voltage	Products shall not be damaged.	Test Voltage : 2.5 times for Rated Voltage Time : 1 to 5 seconds Charge Current : 1 mA max.
DC Resistance (Rdc)	Meet item 3.	Measuring current : 100mA max.
Insulation Resistance (I.R.)	10M min.	Measuring voltage : Rated Voltage Measuring time : 1 minute max.

Mechanical Performance

Item	Specification	Test Method
Appearance and Dimensions	Meet item 5.	Visual Inspection and measured with Slide Calipers.
Bonding Strength	No evidence of coming off substrate. Products shall not be mechanical damaged. It shall be soldered on the substrate.	Applying Force(F) : 5N Applying Time : 51seconds
Bending Strength	Meet Table 1.	Deflection : 2mm (t=1.0mm) Keeping time : 5 seconds Speed of Applying Force : 0.5mm/s
Drop	It shall be dropped on concrete or steel board.	Method : free fall Height : 1 m The Number of Times : 3 times
Vibration	It shall be soldered on the substrate.	Oscillation Frequency : 10 to 55 to 10Hz for 1 minute Total Amplitude : 1.5mm Testing Time : A period of 2 hours in each of 3 mutually perpendicular directions. (Total 6 hours)
Solderability	The electrodes shall be at least 90% covered with new solder coating.	Flux:Ethanol solution of rosin,25(wt)% includes activator equivalent to 0.06 to 0.10(wt)% chlorine Pre-Heating : 80 to 120C 1minute Solder : Sn-3.0Ag-0.5Cu Solder Temperature : 2453C Immersion Time : 41 seconds Immersion and emersion rates : 25mm/s
Resistance to Soldering Heat	Meet Table 1.	Flux : Ethanol solution of rosin,25(wt)% includes activator equipment to 0.06 to 0.10(wt)% chlorine Pre-Heating : 80 to 120C, 1minute Solder : Sn-3.0Ag-0.5Cu Solder Temperature : 2605C Immersion Time : 50.5 seconds Immersion and emersion rates : 25mm/s Then measured after exposure in the room condition for 4 to 48 hours.

Environmental Performance

Item	Specification	Test Method
Temperature Cycle	Meet Table 1.	Step 1 -40C(+0C,-3C) / 303 min Step 2 Ordinary Temp. / 10 to 15 minutes Step 3 +85C(+3C,-0C) / 303 min Step 4 Ordinary Temp. / 10 to 15 minutes Total of 10 cycles Then measured after exposure in the room condition for 4 to 48 hours
Humidity	Appearance No damaged Common Mode Impedance Change within 20% I.R. 10M min. Withstanding Voltage No damaged	Temperature : 402C Humidity : 90~95%(RH) Time : 1000(+48 hours,-0 hours) Then measured after exposure in the room condition for 4 to 48 hours.
Heat life	Appearance No damaged Common Mode Impedance Change within 20% I.R. 10M min. Withstanding Voltage No damaged	Temperature : 852C Applying Voltage : 2times for Rated Voltage Time : 1000(+48 hours,-0 hours) Then measured after exposure in the room condition for 4 to 48 hours.
Cold Resistance	Appearance No damaged Common Mode Impedance Change within 20% I.R. 10M min. Withstanding Voltage No damaged	Temperature : -40 2C Time : 1000(+48 hours,-0 hours) Then measured after exposure in the room condition for 4 to 48 hours.