Size | Dimensions | L (mm) | W (mm) | H (mm) | |
---|---|---|---|---|---|
7332 straight | 7.3 | 7.3 | 4 | ||
7345 straight | 7.3 | 7.3 | 4.8 | ||
1260 straight | 12.5 | 12.5 | 6.5 | ||
1280 straight | 12.5 | 12.5 | 8.5 | ||
1260 crossed | 12.5 | 12.5 | 6.5 | ||
1280 crossed | 12.5 | 12.5 | 8.5 | ||
1210 crossed | 12.5 | 12.5 | 10.5 | ||
7345 crossed | 7.3 | 7.3 | 4.8 | ||
7355 crossed | 7.3 | 7.3 | 5.8 |
LTSpice files
Characteristics
- 1:1 transformer
- Double inductor with two identical windings
- 5 different sizes available
- Operating temperature: –40 ºC to +125 ºC
- Recommended solder profile: Reflow
- Custom designs on request
Applications
- For SEPIC and CUK topologies
- Flyback applications
- Switching regulators with second, unregulated output voltage
Products
All
7332 straight
7345 straight
1260 straight
1280 straight
1260 crossed
1280 crossed
1210 crossed
7345 crossed
7355 crossed
Order Code | Datasheet | Simulation | Downloads | Status | L1 (µH) | L2 (µH) | IR (A) | IR 2 (A) | ISAT (A) | RDC1 typ (Ω) | RDC2 typ (Ω) | RDC1 max (Ω) | RDC2 max (Ω) | fres (MHz) | Type | Design Kit | Samples |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
744878001 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 1.3 | 1.3 | 4.4 | 4.4 | 6.3 | 0.027 | 0.027 | 0.035 | 0.035 | 60 | Straight | 744870 | ||
744874001 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 1.5 | 1.5 | 5.85 | 5.85 | 14 | 0.012 | 0.012 | 0.016 | 0.016 | 70 | Straight | – | ||
744873001 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 1.5 | 1.5 | 6.25 | 6.25 | 18 | 0.011 | 0.011 | 0.015 | 0.015 | 75 | Straight | – | ||
7448700015 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 1.5 | 1.5 | 8.6 | 8.6 | 17.5 | 0.012 | 0.012 | 0.016 | 0.016 | 60 | Crossed | – | ||
744877001 | SPEC | 10 files | Active i| Production is active. Expected lifetime: >10 years. | 1.8 | 1.8 | 4.7 | 4.7 | 6.5 | 0.025 | 0.025 | 0.034 | 0.034 | 58 | Straight | 744870 | ||
7448709022 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 2.2 | 2.2 | 4.1 | 4.1 | 19 | 0.015 | 0.015 | 0.017 | 0.017 | 45 | Crossed | – | ||
744878002 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 2.4 | 2.4 | 3.6 | 3.6 | 4.8 | 0.042 | 0.042 | 0.052 | 0.052 | 53 | Straight | 744870 | ||
744877002 | SPEC | 10 files | Active i| Production is active. Expected lifetime: >10 years. | 2.4 | 2.4 | 4.2 | 4.2 | 5.6 | 0.031 | 0.031 | 0.042 | 0.042 | 50 | Straight | 744870 | ||
744874002 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 2.4 | 2.4 | 5.5 | 5.5 | 11.5 | 0.013 | 0.013 | 0.017 | 0.017 | 54 | Straight | – | ||
744873002 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 2.4 | 2.4 | 6 | 6 | 14 | 0.012 | 0.012 | 0.016 | 0.016 | 54 | Straight | – | ||
744870002 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 2.4 | 2.4 | 7.8 | 7.8 | 15 | 0.014 | 0.014 | 0.018 | 0.018 | 40 | Crossed | – | ||
744878003 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 3.3 | 3.3 | 3.3 | 3.3 | 4 | 0.052 | 0.052 | 0.064 | 0.064 | 49 | Straight | – | ||
744877003 | SPEC | 11 files | Active i| Production is active. Expected lifetime: >10 years. | 3.3 | 3.3 | 3.7 | 3.7 | 5 | 0.04 | 0.04 | 0.052 | 0.052 | 46 | Straight | 744870 | ||
744874003 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 3.3 | 3.3 | 4.91 | 4.91 | 8.9 | 0.017 | 0.017 | 0.021 | 0.021 | 45 | Straight | – | ||
744873003 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 3.3 | 3.3 | 5.14 | 5.14 | 11 | 0.017 | 0.017 | 0.022 | 0.022 | 41 | Straight | – | ||
744870003 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 3.3 | 3.3 | 7.1 | 7.1 | 12 | 0.016 | 0.016 | 0.021 | 0.021 | 30 | Crossed | – | ||
7448709033 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 3.3 | 3.3 | 3.7 | 3.7 | 15.5 | 0.017 | 0.017 | 0.02 | 0.02 | 35 | Crossed | – | ||
744878004 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 4.7 | 4.7 | 1.3 | 1.3 | 3 | 0.065 | 0.065 | 0.075 | 0.075 | 46 | Straight | 744870 | ||
744877004 | SPEC | 10 files | Active i| Production is active. Expected lifetime: >10 years. | 4.7 | 4.7 | 2.55 | 2.55 | 4 | 0.052 | 0.052 | 0.064 | 0.064 | 42 | Straight | 744870 | ||
744874004 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 4.7 | 4.7 | 4.22 | 4.22 | 8 | 0.023 | 0.023 | 0.028 | 0.028 | 39 | Straight | 744870 | ||
744871004 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 4.7 | 4.7 | 3 | 3 | 8 | 0.023 | 0.023 | 0.028 | 0.028 | 20 | Crossed | 744870 | ||
744873004 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 4.7 | 4.7 | 4.87 | 4.87 | 10 | 0.019 | 0.019 | 0.024 | 0.024 | 32 | Straight | 744870 | ||
744870004 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 4.7 | 4.7 | 3.6 | 3.6 | 10 | 0.025 | 0.025 | 0.03 | 0.03 | 34 | Crossed | 744870 | ||
7448709047 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 4.7 | 4.7 | 3.6 | 3.6 | 13 | 0.019 | 0.019 | 0.023 | 0.023 | 30 | Crossed | – | ||
744878005 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 5.6 | 5.6 | 1.5 | 1.5 | 3 | 0.095 | 0.095 | 0.12 | 0.12 | 26 | Straight | – | ||
744877005 | SPEC | 10 files | Active i| Production is active. Expected lifetime: >10 years. | 5.6 | 5.6 | 1.9 | 1.9 | 3.5 | 0.08 | 0.08 | 0.095 | 0.095 | 23 | Straight | – | ||
744878006 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 6.8 | 6.8 | 1.4 | 1.4 | 2.8 | 0.11 | 0.11 | 0.135 | 0.135 | 25 | Straight | – | ||
744877006 | SPEC | 10 files | Active i| Production is active. Expected lifetime: >10 years. | 6.8 | 6.8 | 1.8 | 1.8 | 3.2 | 0.085 | 0.085 | 0.102 | 0.102 | 20 | Straight | – | ||
744874006 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 6.8 | 6.8 | 3.9 | 3.9 | 6.8 | 0.027 | 0.027 | 0.032 | 0.032 | 33 | Straight | – | ||
744871006 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 6.8 | 6.8 | 2.8 | 2.8 | 6.5 | 0.035 | 0.035 | 0.04 | 0.04 | 20 | Crossed | – | ||
744870006 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 6.8 | 6.8 | 3.2 | 3.2 | 8 | 0.027 | 0.027 | 0.035 | 0.035 | 18 | Crossed | – | ||
7448709068 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 6.8 | 6.8 | 3.3 | 3.3 | 11.5 | 0.026 | 0.026 | 0.031 | 0.031 | 23 | Crossed | – | ||
744878008 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 8.2 | 8.2 | 1.3 | 1.3 | 2.7 | 0.115 | 0.115 | 0.14 | 0.14 | 22 | Straight | – | ||
744877008 | SPEC | 10 files | Active i| Production is active. Expected lifetime: >10 years. | 8.2 | 8.2 | 1.7 | 1.7 | 2.9 | 0.091 | 0.091 | 0.11 | 0.11 | 17 | Straight | – | ||
744878100 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 10 | 10 | 1 | 1 | 2 | 0.125 | 0.125 | 0.15 | 0.15 | 30 | Straight | 744870 | ||
744877100 | SPEC | 10 files | Active i| Production is active. Expected lifetime: >10 years. | 10 | 10 | 1.1 | 1.1 | 2.8 | 0.11 | 0.11 | 0.12 | 0.12 | 27 | Straight | 744870 | ||
744874100 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 10 | 10 | 3.28 | 3.28 | 5.25 | 0.038 | 0.038 | 0.044 | 0.044 | 24 | Straight | 744870 | ||
744871100 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 10 | 10 | 2 | 2 | 5 | 0.044 | 0.044 | 0.05 | 0.05 | 20 | Crossed | 744870 | ||
744873100 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 10 | 10 | 4.2 | 4.2 | 7.5 | 0.031 | 0.031 | 0.042 | 0.042 | 20 | Straight | 744870 | ||
744870100 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 10 | 10 | 2.7 | 2.7 | 7 | 0.038 | 0.038 | 0.044 | 0.044 | 18 | Crossed | 744870 | ||
7448709100 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 10 | 10 | 3.2 | 3.2 | 8 | 0.033 | 0.033 | 0.04 | 0.04 | 20 | Crossed | 744870 | ||
744873150 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 15 | 15 | 3.3 | 3.3 | 6.1 | 0.041 | 0.041 | 0.055 | 0.055 | 14 | Straight | – | ||
744878220 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 22 | 22 | 0.7 | 0.7 | 1.5 | 0.245 | 0.245 | 0.3 | 0.3 | 20 | Straight | – | ||
744877220 | SPEC | 10 files | Active i| Production is active. Expected lifetime: >10 years. | 22 | 22 | 0.8 | 0.8 | 1.8 | 0.215 | 0.215 | 0.26 | 0.26 | 16 | Straight | 744870 | ||
744874220 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 22 | 22 | 2.47 | 2.47 | 3.3 | 0.067 | 0.067 | 0.08 | 0.08 | 15.5 | Straight | 744870 | ||
744871220 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 22 | 22 | 1.85 | 1.85 | 3 | 0.067 | 0.067 | 0.09 | 0.09 | 14 | Crossed | 744870 | ||
744873220 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 22 | 22 | 2.79 | 2.79 | 5 | 0.058 | 0.058 | 0.07 | 0.07 | 11.5 | Straight | 744870 | ||
744870220 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 22 | 22 | 2.45 | 2.45 | 5.2 | 0.062 | 0.062 | 0.08 | 0.08 | 10 | Crossed | 744870 | ||
7448709220 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 22 | 22 | 3.5 | 3.5 | 5 | 0.064 | 0.064 | 0.08 | 0.08 | 10 | Crossed | 744870 | ||
744877330 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 33 | 33 | 0.7 | 0.7 | 1.5 | 0.4 | 0.4 | 0.5 | 0.5 | 8 | Straight | – | ||
744871330 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 33 | 33 | 1.2 | 1.2 | 2.8 | 0.125 | 0.125 | 0.17 | 0.17 | 6 | Crossed | – | ||
744873330 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 33 | 33 | 2.25 | 2.25 | 3.9 | 0.087 | 0.087 | 0.105 | 0.105 | 8.9 | Straight | – | ||
7448709330 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 33 | 33 | 2 | 2 | 4.4 | 0.08 | 0.08 | 0.1 | 0.1 | 6 | Crossed | 744870 | ||
744878470 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 47 | 47 | 0.9 | 0.9 | 1 | 0.6 | 0.6 | 0.75 | 0.75 | 8 | Straight | – | ||
744874470 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 47 | 47 | 1.8 | 1.8 | 2.75 | 0.13 | 0.13 | 0.15 | 0.15 | 11 | Straight | 744870 | ||
744871470 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 47 | 47 | 1.1 | 1.1 | 2.4 | 0.145 | 0.145 | 0.18 | 0.18 | 5 | Crossed | 744870 | ||
744873470 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 47 | 47 | 2.02 | 2.02 | 3.1 | 0.11 | 0.11 | 0.12 | 0.12 | 7.8 | Straight | 744870 | ||
744870470 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 47 | 47 | 1.45 | 1.45 | 3.1 | 0.125 | 0.125 | 0.15 | 0.15 | 5 | Crossed | 744870 | ||
7448709470 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 47 | 47 | 1.9 | 1.9 | 3.6 | 0.106 | 0.106 | 0.13 | 0.13 | 4 | Crossed | – | ||
744873680 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 68 | 68 | 1.66 | 1.66 | 2.8 | 0.163 | 0.163 | 0.18 | 0.18 | 5.5 | Straight | – | ||
744870680 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 68 | 68 | 1.35 | 1.35 | 3 | 0.17 | 0.17 | 0.215 | 0.215 | 3.7 | Crossed | – | ||
744878101 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 100 | 100 | 0.3 | 0.3 | 0.7 | 1.4 | 1.4 | 1.73 | 1.73 | 4 | Straight | – | ||
744877101 | SPEC | 10 files | Active i| Production is active. Expected lifetime: >10 years. | 100 | 100 | 0.65 | 0.65 | 0.9 | 1.029 | 1.029 | 1.3 | 1.3 | 4 | Straight | – | ||
744874101 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 100 | 100 | 1.2 | 1.2 | 1.7 | 0.285 | 0.285 | 0.32 | 0.32 | 6 | Straight | 744870 | ||
744871101 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 100 | 100 | 1.5 | 1.5 | 1.8 | 0.293 | 0.293 | 0.36 | 0.36 | 4 | Crossed | 744870 | ||
744873101 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 100 | 100 | 1.38 | 1.38 | 2.2 | 0.235 | 0.235 | 0.255 | 0.255 | 4.4 | Straight | 744870 | ||
744870101 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 100 | 100 | 1.4 | 1.4 | 2 | 0.23 | 0.23 | 0.3 | 0.3 | 4 | Crossed | 744870 | ||
744870151 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 150 | 150 | 1 | 1 | 1.7 | 0.34 | 0.34 | 0.4 | 0.4 | 2.3 | Crossed | – | ||
744873221 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 220 | 220 | 0.91 | 0.91 | 1.6 | 0.54 | 0.54 | 0.58 | 0.58 | 2.8 | Straight | 744870 | ||
744870221 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 220 | 220 | 0.9 | 0.9 | 1.4 | 0.53 | 0.53 | 0.65 | 0.65 | 2 | Crossed | 744870 | ||
744875221 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | 220 | 220 | 0.46 | 0.46 | 0.58 | 1.94 | 1.94 | 2.32 | 2.32 | 4.1 | Crossed | – | |
744879221 | SPEC | – | 3 files | Active i| Production is active. Expected lifetime: >10 years. | 220 | 220 | 0.44 | 0.44 | 0.7 | 1.94 | 1.94 | 2.3 | 2.3 | 3.2 | Crossed | – | |
744870471 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 470 | 470 | 0.7 | 0.7 | 0.9 | 1 | 1 | 1.2 | 1.2 | 0.65 | Crossed | – |
Order Code | Datasheet | Simulation |
---|---|---|
744878001 | SPEC | |
744874001 | SPEC | |
744873001 | SPEC | |
7448700015 | SPEC | |
744877001 | SPEC | |
7448709022 | SPEC | |
744878002 | SPEC | |
744877002 | SPEC | |
744874002 | SPEC | |
744873002 | SPEC | |
744870002 | SPEC | |
744878003 | SPEC | |
744877003 | SPEC | |
744874003 | SPEC | |
744873003 | SPEC | |
744870003 | SPEC | |
7448709033 | SPEC | |
744878004 | SPEC | |
744877004 | SPEC | |
744874004 | SPEC | |
744871004 | SPEC | |
744873004 | SPEC | |
744870004 | SPEC | |
7448709047 | SPEC | |
744878005 | SPEC | |
744877005 | SPEC | |
744878006 | SPEC | |
744877006 | SPEC | |
744874006 | SPEC | |
744871006 | SPEC | |
744870006 | SPEC | |
7448709068 | SPEC | |
744878008 | SPEC | |
744877008 | SPEC | |
744878100 | SPEC | |
744877100 | SPEC | |
744874100 | SPEC | |
744871100 | SPEC | |
744873100 | SPEC | |
744870100 | SPEC | |
7448709100 | SPEC | |
744873150 | SPEC | |
744878220 | SPEC | |
744877220 | SPEC | |
744874220 | SPEC | |
744871220 | SPEC | |
744873220 | SPEC | |
744870220 | SPEC | |
7448709220 | SPEC | |
744877330 | SPEC | |
744871330 | SPEC | |
744873330 | SPEC | |
7448709330 | SPEC | |
744878470 | SPEC | |
744874470 | SPEC | |
744871470 | SPEC | |
744873470 | SPEC | |
744870470 | SPEC | |
7448709470 | SPEC | |
744873680 | SPEC | |
744870680 | SPEC | |
744878101 | SPEC | |
744877101 | SPEC | |
744874101 | SPEC | |
744871101 | SPEC | |
744873101 | SPEC | |
744870101 | SPEC | |
744870151 | SPEC | |
744873221 | SPEC | |
744870221 | SPEC | |
744875221 | SPEC | – |
744879221 | SPEC | – |
744870471 | SPEC |
Samples |
---|
Order Code | Datasheet | Simulation | Downloads | Status | L1 (µH) | L2 (µH) | IR (A) | IR 2 (A) | ISAT (A) | RDC1 typ (Ω) | RDC2 typ (Ω) | RDC1 max (Ω) | RDC2 max (Ω) | fres (MHz) | Type | Design Kit | Samples |
---|
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.

Assortments
Articles from this product series can be found in the following assortments:
Videos
WE-MCRI – Innovative Molded Coupled Inductor by Würth Elektronik eiSos