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Insulation Resistance(IR) : 10MΩ
Operating Temperature : -40℃~+85℃
DC Resistance(DCR) : 450mΩ
Voltage Rating - DC : 50V
Number of Lines : 2
Voltage Withstand : 50V
Description : 2Line Common Mode Choke Surface Mount-4P 370Ω@100MHz 280mA DCR 450mΩ
Mfr. Part # : DLW21SN371SQ2L
Model Number : DLW21SN371SQ2L
Package : SMD-4P,2x1.2mm
This reference specification applies to Murata Chip Common Mode Choke Coils, designed for noise suppression in various electronic applications. These components offer effective common mode noise filtering with a winding type structure.
| Murata Part Number | Common Mode Impedance (at 100MHz, ) | Rated Voltage (VDC) | Withstanding Voltage (VDC) | Rated Current (mA) | DC Resistance ( max.) | Insulation Resistance (M min.) |
| DLW21SN371SQ2L | 370 25 % | 50 | 125 | 280 | 0.45 | 10 |
| DLW21SN371SQ2B | 370 25 % | 50 | 125 | 280 | 0.45 | 10 |
| DLW21SN261SQ2L | 260 25 % | 300 | 0.40 | |||
| DLW21SN261SQ2B | 260 25 % | 300 | 0.40 | |||
| DLW21SN181SQ2L | 180 25 % | 330 | 0.35 | |||
| DLW21SN181SQ2B | 180 25 % | 330 | 0.35 | |||
| DLW21SN121SQ2L | 120 25 % | 370 | 0.30 | |||
| DLW21SN121SQ2B | 120 25 % | 370 | 0.30 | |||
| DLW21SN900SQ2L | 90 25 % | 330 | 0.35 | |||
| DLW21SN900SQ2B | 90 25 % | 330 | 0.35 | |||
| DLW21SN670SQ2L | 67 25 % | 400 | 0.25 | |||
| DLW21SN670SQ2B | 67 25 % | 400 | 0.25 |
| Operating Temperature | Storage Temperature | Unit Mass (Typical) |
| -40 to +85C | -40 to +85C | 0.011g |
| 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.) | Measuring voltage : Rated Voltage Measuring time : 1 minute max. | |
| 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 | 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. |
| Temperature Cycle | Meet Table 1. | 1 Cycle 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 | 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 | 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 | Temperature : -40 2C Time : 1000(+48 hours,-0 hours) Then measured after exposure in the room condition for 4 to 48 hours. |
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Common Mode Choke Coil Murata DLW21SN371SQ2L Noise Suppression Component with 370 Ohm Impedance Images |