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Specifications
Insulation Resistance(IR):
10MΩ
Operating Temperature:
-40℃~+85℃
DC Resistance(DCR):
300mΩ
Voltage Rating - DC:
50V
Number of Lines:
2
Voltage Withstand:
125V
Mfr. Part #:
DLW21SN121SQ2L
Package:
SMD-4P,2x1.2mm
Key Attributes
Model Number:
DLW21SN121SQ2L
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. |
2410121525_muRata-DLW21SN121SQ2L_C86163.pdf
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