WE-TDC SMT Shielded Coupled Inductor
| Size | Dimensions | L (mm) | W (mm) | H (mm) | |
|---|---|---|---|---|---|
8018 | 8 | 8 | 1.8 | ||
8038 | 8 | 8 | 3.8 |
LTSpice files
Characteristics
- Core material: NiZn
- Low profile
- Magnetical shielded which results in a low leakage field
- 8x8 mm case
- Operating temperature range -40 up to 125°C
- 1:1 transformer
- Low self-losses
- Higher Self Resonant Frequency
- Low leakage inductance
- Coupled inductor with two identical windings
- Recommended solder profile: Reflow
Applications
- Non-Isolated Flyback Converter
- Buck or Boost with auxiliary winding
- BUCK-BOOST, SEPIC, ZETA & CUK Converter
- Switching regulators with second, unregulated output voltage
Products
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8018
8038
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Reset allOrder Code | Datasheet | Simulation | Downloads | Status | L1(µH) | L2(µH) | n | IR(A) | IR 2(A) | ISAT(A) | ISAT1(A) | ISAT2(A) | RDC1 typ(mΩ) | RDC2 typ(mΩ) | RDC1 max(mΩ) | RDC2 max(mΩ) | fres 1(MHz) | Design Kit | SamplesAvailability & Sample | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
744894300033 | SPEC0.33 µH, 0.33 µH, 1:1 | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Inductance 10.33 µH | Inductance 20.33 µH | Turns Ratio1:1 | Rated Current4 A | Rated Current 24 A | Saturation Current9 A | Saturation Current 19 A | Saturation Current 29 A | DC Resistance 111.1 mΩ | DC Resistance 211.1 mΩ | DC Resistance 115 mΩ | DC Resistance 215 mΩ | Self Resonant Frequency [1]280 MHz | Design Kit | –Check availability | ||
744894400039 | SPEC0.39 µH, 0.39 µH, 1:1 | Availability – | Status NRNDi| Production is active. Product is not recommended for new design. Expected lifetime: 2-5 years. | Inductance 10.39 µH | Inductance 20.39 µH | Turns Ratio1:1 | Rated Current4.5 A | Rated Current 24.5 A | Saturation Current14 A | Saturation Current 114 A | Saturation Current 214 A | DC Resistance 111.6 mΩ | DC Resistance 211.6 mΩ | DC Resistance 114.5 mΩ | DC Resistance 214.5 mΩ | Self Resonant Frequency [1]210 MHz | Design Kit | –Check availability | ||
744894300068 | SPEC0.68 µH, 0.68 µH, 1:1 | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Inductance 10.68 µH | Inductance 20.68 µH | Turns Ratio1:1 | Rated Current3.3 A | Rated Current 23.3 A | Saturation Current6.5 A | Saturation Current 16.5 A | Saturation Current 26.5 A | DC Resistance 116.3 mΩ | DC Resistance 216.3 mΩ | DC Resistance 121 mΩ | DC Resistance 221 mΩ | Self Resonant Frequency [1]190 MHz | Design Kit | –Check availability | ||
744894400082 | SPEC0.82 µH, 0.82 µH, 1:1 | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Inductance 10.82 µH | Inductance 20.82 µH | Turns Ratio1:1 | Rated Current3.7 A | Rated Current 23.7 A | Saturation Current9.6 A | Saturation Current 19.6 A | Saturation Current 29.6 A | DC Resistance 115.9 mΩ | DC Resistance 215.9 mΩ | DC Resistance 120 mΩ | DC Resistance 220 mΩ | Self Resonant Frequency [1]140 MHz | Design Kit | –Check availability | ||
74489430010 | SPEC1 µH, 1 µH, 1:1 | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Inductance 11 µH | Inductance 21 µH | Turns Ratio1:1 | Rated Current2.85 A | Rated Current 22.85 A | Saturation Current5.1 A | Saturation Current 15.1 A | Saturation Current 25.1 A | DC Resistance 122.2 mΩ | DC Resistance 222.2 mΩ | DC Resistance 128 mΩ | DC Resistance 228 mΩ | Self Resonant Frequency [1]136 MHz | Design Kit | –Check availability | ||
74489440012 | SPEC1.2 µH, 1.2 µH, 1:1 | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Inductance 11.2 µH | Inductance 21.2 µH | Turns Ratio1:1 | Rated Current3.05 A | Rated Current 23.05 A | Saturation Current7.5 A | Saturation Current 17.5 A | Saturation Current 27.5 A | DC Resistance 120.2 mΩ | DC Resistance 220.2 mΩ | DC Resistance 126 mΩ | DC Resistance 226 mΩ | Self Resonant Frequency [1]90 MHz | Design Kit | –Check availability | ||
74489440018 | SPEC1.8 µH, 1.8 µH, 1:1 | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Inductance 11.8 µH | Inductance 21.8 µH | Turns Ratio1:1 | Rated Current2.85 A | Rated Current 22.85 A | Saturation Current5.8 A | Saturation Current 15.8 A | Saturation Current 25.8 A | DC Resistance 125.5 mΩ | DC Resistance 225.5 mΩ | DC Resistance 131 mΩ | DC Resistance 231 mΩ | Self Resonant Frequency [1]60 MHz | Design Kit | –Check availability | ||
74489430022 | SPEC2.2 µH, 2.2 µH, 1:1 | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Inductance 12.2 µH | Inductance 22.2 µH | Turns Ratio1:1 | Rated Current1.9 A | Rated Current 21.9 A | Saturation Current3.5 A | Saturation Current 13.5 A | Saturation Current 23.5 A | DC Resistance 149.5 mΩ | DC Resistance 249.5 mΩ | DC Resistance 158 mΩ | DC Resistance 258 mΩ | Self Resonant Frequency [1]85 MHz | Design Kit | –Check availability | ||
74489430027 | SPEC2.7 µH, 2.7 µH, 1:1 | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Inductance 12.7 µH | Inductance 22.7 µH | Turns Ratio1:1 | Rated Current1.85 A | Rated Current 21.85 A | Saturation Current3 A | Saturation Current 13 A | Saturation Current 23 A | DC Resistance 169.5 mΩ | DC Resistance 269.5 mΩ | DC Resistance 180.5 mΩ | DC Resistance 280.5 mΩ | Self Resonant Frequency [1]65 MHz | Design Kit | –Check availability | ||
74489440027 | SPEC2.7 µH, 2.7 µH, 1:1 | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Inductance 12.7 µH | Inductance 22.7 µH | Turns Ratio1:1 | Rated Current2.5 A | Rated Current 22.5 A | Saturation Current5.1 A | Saturation Current 15.1 A | Saturation Current 25.1 A | DC Resistance 134.5 mΩ | DC Resistance 234.5 mΩ | DC Resistance 140 mΩ | DC Resistance 240 mΩ | Self Resonant Frequency [1]55 MHz | Design Kit – | –Check availability | ||
74489440036 | SPEC3.6 µH, 3.6 µH, 1:1 | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Inductance 13.6 µH | Inductance 23.6 µH | Turns Ratio1:1 | Rated Current2.3 A | Rated Current 22.3 A | Saturation Current4.6 A | Saturation Current 14.6 A | Saturation Current 24.6 A | DC Resistance 147 mΩ | DC Resistance 247 mΩ | DC Resistance 153 mΩ | DC Resistance 253 mΩ | Self Resonant Frequency [1]45 MHz | Design Kit – | –Check availability | ||
74489430039 | SPEC3.9 µH, 3.9 µH, 1:1 | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Inductance 13.9 µH | Inductance 23.9 µH | Turns Ratio1:1 | Rated Current1.6 A | Rated Current 21.6 A | Saturation Current2.55 A | Saturation Current 12.55 A | Saturation Current 22.55 A | DC Resistance 182 mΩ | DC Resistance 282 mΩ | DC Resistance 194 mΩ | DC Resistance 294 mΩ | Self Resonant Frequency [1]60 MHz | Design Kit | –Check availability | ||
74489440047 | SPEC4.7 µH, 4.7 µH, 1:1 | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Inductance 14.7 µH | Inductance 24.7 µH | Turns Ratio1:1 | Rated Current1.85 A | Rated Current 21.85 A | Saturation Current4.2 A | Saturation Current 14.2 A | Saturation Current 24.2 A | DC Resistance 154.5 mΩ | DC Resistance 254.5 mΩ | DC Resistance 164 mΩ | DC Resistance 264 mΩ | Self Resonant Frequency [1]30 MHz | Design Kit | –Check availability | ||
74489430056 | SPEC5.6 µH, 5.6 µH, 1:1 | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Inductance 15.6 µH | Inductance 25.6 µH | Turns Ratio1:1 | Rated Current1.45 A | Rated Current 21.45 A | Saturation Current2.2 A | Saturation Current 12.2 A | Saturation Current 22.2 A | DC Resistance 1114 mΩ | DC Resistance 2114 mΩ | DC Resistance 1131 mΩ | DC Resistance 2131 mΩ | Self Resonant Frequency [1]50 MHz | Design Kit | –Check availability | ||
74489430068 | SPEC6.8 µH, 6.8 µH, 1:1 | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Inductance 16.8 µH | Inductance 26.8 µH | Turns Ratio1:1 | Rated Current1.25 A | Rated Current 21.25 A | Saturation Current2 A | Saturation Current 12 A | Saturation Current 22 A | DC Resistance 1128 mΩ | DC Resistance 2128 mΩ | DC Resistance 1146 mΩ | DC Resistance 2146 mΩ | Self Resonant Frequency [1]46 MHz | Design Kit | –Check availability | ||
74489440068 | SPEC6.8 µH, 6.8 µH, 1:1 | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Inductance 16.8 µH | Inductance 26.8 µH | Turns Ratio1:1 | Rated Current1.45 A | Rated Current 21.45 A | Saturation Current3.2 A | Saturation Current 13.2 A | Saturation Current 23.2 A | DC Resistance 188 mΩ | DC Resistance 288 mΩ | DC Resistance 1100 mΩ | DC Resistance 2100 mΩ | Self Resonant Frequency [1]25 MHz | Design Kit | –Check availability | ||
74489430100 | SPEC10 µH, 10 µH, 1:1 | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Inductance 110 µH | Inductance 210 µH | Turns Ratio1:1 | Rated Current1 A | Rated Current 21 A | Saturation Current1.65 A | Saturation Current 11.65 A | Saturation Current 21.65 A | DC Resistance 1190 mΩ | DC Resistance 2190 mΩ | DC Resistance 1215 mΩ | DC Resistance 2215 mΩ | Self Resonant Frequency [1]35 MHz | Design Kit | –Check availability | ||
74489440100 | SPEC10 µH, 10 µH, 1:1 | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Inductance 110 µH | Inductance 210 µH | Turns Ratio1:1 | Rated Current1.35 A | Rated Current 21.35 A | Saturation Current2.6 A | Saturation Current 12.6 A | Saturation Current 22.6 A | DC Resistance 1113 mΩ | DC Resistance 2113 mΩ | DC Resistance 1128 mΩ | DC Resistance 2128 mΩ | Self Resonant Frequency [1]23 MHz | Design Kit | –Check availability | ||
74489430120 | SPEC12 µH, 12 µH, 1:1 | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Inductance 112 µH | Inductance 212 µH | Turns Ratio1:1 | Rated Current0.95 A | Rated Current 20.95 A | Saturation Current1.55 A | Saturation Current 11.55 A | Saturation Current 21.55 A | DC Resistance 1202 mΩ | DC Resistance 2202 mΩ | DC Resistance 1227 mΩ | DC Resistance 2227 mΩ | Self Resonant Frequency [1]33 MHz | Design Kit | –Check availability | ||
74489440120 | SPEC12 µH, 12 µH, 1:1 | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Inductance 112 µH | Inductance 212 µH | Turns Ratio1:1 | Rated Current1.3 A | Rated Current 21.3 A | Saturation Current2.3 A | Saturation Current 12.3 A | Saturation Current 22.3 A | DC Resistance 1117 mΩ | DC Resistance 2117 mΩ | DC Resistance 1132 mΩ | DC Resistance 2132 mΩ | Self Resonant Frequency [1]20 MHz | Design Kit | –Check availability | ||
74489430150 | SPEC15 µH, 15 µH, 1:1 | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Inductance 115 µH | Inductance 215 µH | Turns Ratio1:1 | Rated Current0.85 A | Rated Current 20.85 A | Saturation Current1.25 A | Saturation Current 11.3 A | Saturation Current 21.3 A | DC Resistance 1262 mΩ | DC Resistance 2262 mΩ | DC Resistance 1295 mΩ | DC Resistance 2295 mΩ | Self Resonant Frequency [1]29 MHz | Design Kit | –Check availability | ||
74489440150 | SPEC15 µH, 15 µH, 1:1 | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Inductance 115 µH | Inductance 215 µH | Turns Ratio1:1 | Rated Current1.1 A | Rated Current 21.1 A | Saturation Current2.2 A | Saturation Current 12.2 A | Saturation Current 22.2 A | DC Resistance 1165 mΩ | DC Resistance 2165 mΩ | DC Resistance 1185 mΩ | DC Resistance 2185 mΩ | Self Resonant Frequency [1]17 MHz | Design Kit | –Check availability | ||
74489430180 | SPEC18 µH, 18 µH, 1:1 | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Inductance 118 µH | Inductance 218 µH | Turns Ratio1:1 | Rated Current0.8 A | Rated Current 20.8 A | Saturation Current1.2 A | Saturation Current 11.2 A | Saturation Current 21.2 A | DC Resistance 1345 mΩ | DC Resistance 2345 mΩ | DC Resistance 1380 mΩ | DC Resistance 2380 mΩ | Self Resonant Frequency [1]27 MHz | Design Kit | –Check availability | ||
74489440180 | SPEC18 µH, 18 µH, 1:1 | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Inductance 118 µH | Inductance 218 µH | Turns Ratio1:1 | Rated Current1.05 A | Rated Current 21.05 A | Saturation Current1.9 A | Saturation Current 11.9 A | Saturation Current 21.9 A | DC Resistance 1179 mΩ | DC Resistance 2179 mΩ | DC Resistance 1201 mΩ | DC Resistance 2201 mΩ | Self Resonant Frequency [1]15 MHz | Design Kit | –Check availability | ||
74489430220 | SPEC22 µH, 22 µH, 1:1 | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Inductance 122 µH | Inductance 222 µH | Turns Ratio1:1 | Rated Current0.7 A | Rated Current 20.7 A | Saturation Current1.1 A | Saturation Current 11.1 A | Saturation Current 21.1 A | DC Resistance 1435 mΩ | DC Resistance 2435 mΩ | DC Resistance 1480 mΩ | DC Resistance 2480 mΩ | Self Resonant Frequency [1]17 MHz | Design Kit | –Check availability | ||
74489440220 | SPEC22 µH, 22 µH, 1:1 | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Inductance 122 µH | Inductance 222 µH | Turns Ratio1:1 | Rated Current1 A | Rated Current 21 A | Saturation Current1.8 A | Saturation Current 11.8 A | Saturation Current 21.8 A | DC Resistance 1203 mΩ | DC Resistance 2203 mΩ | DC Resistance 1228 mΩ | DC Resistance 2228 mΩ | Self Resonant Frequency [1]14 MHz | Design Kit | –Check availability |
Availability Forecast
WE item number: –
VPE–
Lead time– weeks
| Expected Availability | Opening inventory | Quantity |
|---|---|---|
| Current Availability | – | – |
Does it just not fit? Please contact us.Simply contact our service team for special orders and bulk quantities.
REDEXPERT loss simulation
Find the best inductor!
REDEXPERT loss simulation
Find the best inductor!
REDEXPERT has the world’s most accurate AC loss model, which even includes the DC-bias current. With dedicated DC-DC topologies or the generic loss simulator, you can accurately determine the AC and DC losses for your converter. The model includes the core material, shape and winding structure of the inductor. REDEXPERT recommends suitable inductors and allows you to add more filters to find the best inductor for your application.
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WE-MCRI – Innovative Molded Coupled Inductor by Würth Elektronik eiSos