■ Features: Various high power Smt inductors are superior to be high saturation for surface mounting.
■ Applications: Power supply for VTR, OA equipment, digital camera, LCD TV set...
■ Product Overview
The CD series SMT/SMD power inductors are wirewound chokes designed for high-current applications in modern compact electronics. Featuring a robust construction with magnetic shielding, they offer high efficiency and low electromagnetic interference (EMI), making them ideal for power supply circuits, DC-DC converters, and noise suppression.
■ Specifications
Available Series & Inductance Range
CD31/32/42/43/51/52/53/54/73/75/104/105 Series
Inductance Range: 1.0 µH to 1000 µH (depending on series)
Electrical Characteristics
Tolerance: ±20% (standard), custom tolerances available
Saturation Current (Isat): Up to 20 A
DC Resistance (DCR): As low as 1.0 mΩ
Operating Temperature Range: -40°C to +125°C (up to +155°C for certain models)
Construction & Features
Core Material: Ferrite or metal composite core for high magnetic efficiency
Winding: Heavy-gauge copper wire for high current handling
Shielding: Fully shielded to minimize EMI and crosstalk
Terminations: Matte tin-plated terminations for excellent solderability
■ Features Various high power Smt inductors are superior to be high saturation for surface mounting. ■ Applications Power supply for VTR, OA equipment, digital camera, LCD TV set, notebook PC, partable communication equipments, DC/DC converters, etc |
■ Part numbering system
■ Shapes and dimensions (UNIT:mm)
Type | A±0.30 | B±0.30 | C (Max) | D | E | F | G | H |
CD31 | 3.0 | 3.50 | 1.80 | 1.0 | 1.30 | 0.90 | 1.30 | 3.50 |
CD32 | 3.0 | 3.50 | 2.40 | 1.0 | 1.30 | 0.90 | 1.30 | 3.50 |
CD42 | 4.0 | 4.50 | 2.30 | 1.50 | 1.80 | 1.20 | 1.80 | 4.50 |
CD43 | 4.0 | 4.50 | 3.50 | 1.50 | 1.80 | 1.20 | 1.80 | 4.50 |
CD51 | 5.20 | 5.80 | 2.30 | 1.50 | 2.70 | 1.20 | 2.70 | 5.80 |
CD52 | 5.20 | 5.80 | 2.80 | 2.0 | 2.40 | 1.80 | 2.40 | 5.80 |
CD53 | 5.20 | 5.80 | 3.80 | 1.80 | 2.70 | 1.20 | 2.70 | 5.80 |
CD54 | 5.20 | 5.80 | 4.80 | 1.50 | 2.60 | 1.40 | 2.60 | 5.80 |
CD73 | 7.0 | 7.80 | 3.80 | 2.50 | 3.0 | 2.0 | 3.0 | 7.50 |
CD75 | 7.0 | 7.80 | 5.20 | 2.50 | 3.0 | 2.0 | 3.0 | 7.50 |
CD104 | 9.0 | 10.0 | 4.20 | 3.20 | 3.75 | 2.50 | 3.75 | 9.50 |
CD105 | 9.0 | 10.0 | 5.80 | 3.20 | 3.75 | 2.50 | 3.75 | 9.50 |
Specification table:
■ SERIES:CD31, CD32
| Part number | Inductance (uH)(※) | Tolerance | Rdc (ohm) Max | Rated Current Amp (※) |
| CD31/32-1R0 | 1 | M | 9m/48m | 1.20/2.0 |
| CD31/32-1R8 | 1.8 | M | 68m/56m | 1.10/1.80 |
| CD31/32-2R2 | 2.2 | M | 78m/78m | 0.98/1.40 |
| CD32-2R7 | 2.7 | M | 98m | 1.3 |
| CD32-3R3 | 3.3 | M | 109m | 1.25 |
| CD32-3R9 | 3.9 | M | 148m | 1.2 |
| CD31/32-4R7 | 4.7 | M | 163m/173m | 0.90/1.10 |
| CD31/32-5R6 | 5.6 | M | 182m/193m | 0.85/0.90 |
| CD31/32-6R8 | 6.8 | M | 234m/220m | 0.81/0.85 |
| CD31/32-8R2 | 8.2 | M | 260m/247m | 0.71/0.80 |
| CD31/32-100 | 10 | M | 306m/286m | 0.61/0.73 |
| CD31/32-120 | 12 | M | 377m/325m | 0.58/0.62 |
| CD31/32-150 | 15 | M | 442m/468m | 0.53/0.60 |
| CD31/32-180 | 18 | M | 550m/546m | 0.48/0.53 |
| CD31/32-220 | 22 | M | 637m/611m | 0.43/0.50 |
| CD31/32-270 | 27 | M | 767m/680m | 0.41/0.42 |
| CD31/32-330 | 33 | M | 1.01/0.96 | 0.37/0.40 |
| CD31/32-390 | 39 | M | 1.11/1.05 | 0.34/0.36 |
| CD31/32-470 | 47 | K | 1.47/1.20 | 0.30/0.34 |
| CD32-560 | 56 | K | 1.53 | 0.32 |
| CD32-680 | 68 | K | 1.76 | 0.3 |
| CD32-820 | 82 | E | 2.39 | 0.28 |
| CD32-101 | 100 | K | 2.67 | 0.25 |
| CD32-121 | 120 | K | 3.72 | 0.2 |
| CD32-151 | 150 | K | 4.29 | 0.19 |
| CD32-181 | 180 | K | 4.81 | 0.17 |
| CD32-221 | 220 | K | 6.63 | 0.16 |
| CD32-271 | 270 | K | 7.8 | 0.13 |
| CD32-331 | 330 | K | 9.5 | 0.12 |
| CD32-391 | 390 | K | 10.5 | 0.115 |
| CD32-471 | 470 | K | 12.1 | 0.09 |
| CD32-561 | 560 | K | 13.3 | 0.08 |
| CD32-681 | 680 | K | 18.2 | 0.07 |
※ The maximum rated current value is the DC current value that can meet the DC superposition allowable current and temperature rise allowable value
※ Inductance Test Fr. 100KHz 100mA(HP 4277A) at 20℃(L<10uH)
※ Inductance Test Fr. 1.0KHz 100mA(HP 4277A) at 20℃(L>10uH)
※Not all smt Inductor specifications are fully listed, and the inductance specifications that are not listed in the table can be customized by contacting us
Specification table:
■ SERIES: CD42, CD43
| Part number | Inductance (uH)(※) | Tolerance | Rdc (ohm) Max | Rated Current Amp (※) |
| CD43-1R0 | 1 | M | 20.0m | 2.6 |
| CD42-1R2 | 1.2 | M | 22.0m | 1.25 |
| CD42-1R5 | 1.5 | M | 25.0m | 1.2 |
| CD43-2R2 | 2.2 | M | 42.0m | 2.3 |
| CD43-3R3 | 3.3 | M | 51.0m | 2.1 |
| CD43-3R9 | 3.9 | M | 73.0m | 1.9 |
| CD42/43-4R7 | 4.7 | M | 72/76m | 0.65/1.60 |
| CD42/43-5R6 | 5.6 | M | 81/83m | 0.60/1.45 |
| CD42/43-6R8 | 6.8 | M | 100/100m | 0.56/1.35 |
| CD42/43-8R2 | 8.2 | M | 107/120m | 0.51/1.30 |
| CD42/43-100 | 10 | M | 143/150m | 0.45/1.00 |
| CD42/43-120 | 12 | M | 163/155m | 0.40/0.90 |
| CD42/43-150 | 15 | M | 195/195m | 0.39/0.80 |
| CD42/43-180 | 18 | M | 247/230m | 0.33/0.70 |
| CD42/43-220 | 22 | M | 300/270m | 0.31/0.60 |
| CD42/43-270 | 27 | M | 340/310m | 0.28/0.55 |
| CD42/43-330 | 33 | M | 420/345m | 0.25/0.50 |
| CD42/43-390 | 39 | M | 495/400m | 0.24/0.48 |
| CD42/43-470 | 47 | K | 618/525m | 0.21/0.40 |
| CD42/43-560 | 56 | K | 728/595m | 0.19/0.38 |
| CD42/43-680 | 68 | K | 870/740m | 0.18/0.33 |
| CD42/43-820 | 82 | K | 1030/880m | 0.17/0.29 |
| CD42/43-101 | 100 | K | 1.37/1.20 | 0.15/0.26 |
| CD42/43-121 | 120 | K | 1.53/1.25 | 0.14/0.24 |
| CD42/43-151 | 150 | K | 1.87/1.60 | 0.12/0.22 |
| CD42/43-181 | 180 | K | 2.34/2.00 | 0.10/0.19 |
| CD42/43-221 | 220 | K | 2.73/2.35 | 0.095/0.18 |
| CD42/43-271 | 270 | K | 3.61/3.25 | 0.092/0.16 |
| CD42/43-331 | 330 | K | 4.32/3.55 | 0.082/0.15 |
| CD42/43-391 | 390 | K | 5.41/4.20 | 0.074/0.13 |
| CD42/43-471 | 470 | K | 6.33/4.90 | 0.065/0.12 |
| CD43-561 | 560 | K | 6.5 | 0.1 |
※ The maximum rated current value is the DC current value that can meet the DC superposition allowable current and temperature rise allowable value
※ Inductance Test Fr. 100KHz 100mA(HP 4277A) at 20℃(L<10uH)
※ Inductance Test Fr. 1.0KHz 100mA(HP 4277A) at 20℃(L>10uH)
※Not all Wirewound Inductor specifications are fully listed, and the inductance specifications that are not listed in the table can be customized by contacting us
Specification table:
■ SERIES: CD51, CD52, CD53, CD54
| Part number | Inductance (uH)(※) | Tolerance | Rdc (ohm) Max | Rated Current Amp (※) |
| CD51/52/53/54-1R0 | 1 | M | 25/13.7/16.5/13.0m | 2.80/3.55/3.70/5.40 |
| CD51/52/53/54-1R5 | 1.5 | M | 32/28.6/19.5/16.9m | 2.50/3.40/3.50/4.70 |
| CD51/52/53/54-1R8 | 1.8 | M | 35/30.0/22.0/19.5m | 2.30/2.50/3.00/4.50 |
| CD52/53/54-2R2 | 2.2 | M | 32.5/25.0/22.1m | 2.35/2.85/4.00 |
| CD52-2R7 | 2.7 | M | 35.0m | 2.7 |
| CD51/52/53/54-3R3 | 3.3 | M | 69/48.0/39.5/31.2m | 1.60/2.20/2.40/3.70 |
| CD51/52/53/54-3R9 | 3.9 | M | 83.2/63.5/46.0/36.4m | 1.45/2.10/2.25/3.20 |
| CD51/52/53/54-4R7 | 4.7 | M | 91.0/75.0/52.0/52.0m | 1.43/1.95/1.90/3.10 |
| CD51/52/53/54-5R6 | 5.6 | M | 103.0/87.6/58.0/54.6m | 1.40/1.75/1.88/2.80 |
| CD51/52/53/54-6R8 | 6.8 | M | 212.0/95.0/71.2/58.5m | 1.20/1.56/1.85/2.40 |
| CD51/52/53/54-8R2 | 8.2 | M | 165.0/118.0/80.6/62.4m | 0.95/1.50/1.81/2.00 |
| CD51/52/53/54-100 | 10.0 | M | 192.0/151.0/93.6/87.9m | 0.90/1.40/1.78/1.42 |
| CD51/52/53/54-120 | 12.0 | M | 208.0/156.0/126.0/95.4m | 0.87/1.25/1.60/1.38 |
| CD51/52/53/54-150 | 15.0 | M | 259.0/234.0/139.0/105.0m | 0.87/1.25/1.60/1.38 |
| CD51/52/53/54-180 | 18.0 | M | 280.0/240.0/160.0/117.0m | 0.82/1.00/1.30/1.22 |
| CD51/52/53/54-220 | 22.0 | M | 389.0/298.0/192.0/169.0m | 0.69/0.95/1.29/1.10 |
| CD51/52/53/54-270 | 27.0 | M | 411.0/324.0/240.0/185.0m | 0.67/0.93/1.10/0.95 |
| CD51/52/53/54-330 | 33.0 | M | 533.0/408.0/325.0/208.0m | 0.63/0,84/0.95/0.86 |
| CD51/52/53/54-390 | 39.0 | M | 611.0/435.0/237.0/215.0m | 0.61/0.78/0.92/0.78 |
| CD51/52/53/54-470 | 47.0 | K | 735.0/570.0/435.0/355.0m | 0.54/0.73/0.82/0.71 |
| CD51/52/53/54-560 | 56.0 | K | 857.0/638.0/553.0/378.0m | 0.52/0.63/0.80/0.66 |
| CD51/52/53/54-680 | 68.0 | K | 1040/800.0/628.0/395.0m | 0.49/0.58/0.76/0.60 |
| CD51/52/53/54-820 | 82.0 | K | 1350/880.0/785.0/420.0m | 0.47/0.51/0.67/0.56 |
| CD51/52/53/54-101 | 100.0 | K | 1560/1130/848.0/611.0m | 0.36/0.45/0.62/0.51 |
| CD51/52/53/54-121 | 120.0 | K | 1.68/1.33/1.03/0.76 | 0.34/0.42/0.60/0.47 |
| CD51/52/53/54-151 | 150.0 | K | 2.37/1.92/1.44/0.85 | 0.30/0.38/0.48/0.38 |
| CD51/52/53/54-181 | 180.0 | K | 2.65/2.13/1.64/1.04 | 0.28/0.33/0.43/0.36 |
| CD51/52/53/54-221 | 220.0 | K | 3.21/2.50/2.05/1.45 | 0.27/0.32/0.37/0.34 |
| CD51/52/53/54-271 | 270.0 | K | 5.16/3.02/2.46/1.54 | 0.24/0.31/0,33/0.31 |
| CD51/52/53/54-331 | 330.0 | K | 6.00/3.87/3.71/1.76 | 0.21/0.28/0.30/0.28 |
| CD51/52/53/54-391 | 390.0 | K | 6.46/4.47/4.24/2.08 | 0.20/0.23/0.26/0.26 |
| CD51/52/53/54-471 | 470.0 | K | 7.53/5.66/4.45/2.90 | 0.16/0.21/0.23/0.24 |
| CD51152/53/54-561 | 560.0 | K | 9.62/6.33/4.70/3.12 | 0.14/0.19/0.22/0.22 |
| CD51/52/53/54-681 | 680.0 | K | 11.1/7.53/6.42/3.90 | 0.12/0.18/0.21/0.20 |
| CD51/52/53/54-821 | 820.0 | K | 12.6/9.54/7.36/5.20 | 0.10/0.16/0.18/0.19 |
※ The maximum rated current value is the DC current value that can meet the DC superposition allowable current and temperature rise allowable value
※ Inductance Test Fr. 100KHz 100mA(HP 4277A) at 20℃(L<10uH)
※ Inductance Test Fr. 1.0KHz 100mA(HP 4277A) at 20℃(L>10uH)
※Not all specifications are fully listed, and the inductance specifications that are not listed in the table can be customized by contacting us
Specification table:
■ SERIES:CD73, CD75, CD104,C D105
<td align="cent
| Part number | Inductance (uH)(※) | Tolerance | Rdc (ohm) Max | Rated Current Amp (※) |
| CD75/105-1R0 | 1 | M | 13.0/8.45m | 5.20/8.00 |
| CD73/104-1R2 | 1.2 | M | 9.10/9.88m | 5.60/7.50 |
| CD105-1R5 | 1.5 | M | 13.8m | 6.8 |
| CD105-1R8 | 1.8 | M | 15.6m |
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.
Tel: 0086-519-83976620
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Email: liujindong@nfdq.cn
No. 6, Xinxin Intelligent Industrial Park，Changzhou, Jiangsu
Changzhou Southern Electronic Element Factory Co., Ltd. is located in the city of Changzhou, which has a long history in Jiangsu Province. It is situated in the most active economic area in Yangtze River Delta Centre. The transport is very convenient. Expressway, Fast railways run though it. And it only takes one and half hours to reach Shanghai or Nanjing city. Airplane from here is through to major cities in China.
Changzhou Southern Electronic Element Factory Co., Ltd. was founded in 1989. After several years' development and effort, it has invested and opened up three subsidiary companies, in Yancheng city, Huai'an city in Jiangsu Province, and Lang'xi City in Anhui Province respectively.
