Working Frequency: High Frequency
Nature of Operation: Choke Coil
Type: CDRH124 / CDRH 125 / CDRH 127 / CDRH 129
Brand: Southern Electronic
Material: Copper Wire, Ferrite Core
Free Sample: Acceptable
Certification: SO9001, ISO14001, U L, RoHS Compliant
Origin: China
■ Features Various high power 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 | ![]() |
■ Benefits
Compact & Versatile Form Factor: Available in multiple height profiles (CDRH124: 4.5mm, CDRH125: 6.0mm, CDRH127: 8.0mm) while maintaining a consistent 12mm x 12mm footprint. This allows designers flexibility in meeting PCB height and performance requirements.
Full Magnetic Shielding (Closed Core): The shielded construction prevents magnetic flux leakage, significantly reducing noise and preventing interference with adjacent sensitive components. This makes them ideal for noise-sensitive applications.
High Saturation Current & Low DCR: Engineered for high power density, these wirewound inductors offer excellent saturation current ratings (e.g., up to 10.4A for CDRH127-1.0uH) alongside low DC resistance (DCR), ensuring high efficiency and minimal power loss in your power path.
Robust Construction: Featuring a durable wirewound design on a ferrite core, wirewound inductors are built to withstand the rigors of automated SMT assembly and provide long-term reliability.
■ Why Choose Our CDRH124 CDRH125 CDRH127 Wirewound Inductors?
Proven Quality: Manufactured by Changzhou Southern, a reputable electronic component factory with decades of experience since 1989.
Customization Support: We offer flexibility. Non-standard inductance values or specific packing requirements can be discussed and customized for your project.
Cost-Effective Solution: CDRH124 CDRH125 CDRH127 wirewound inductors achieve performance parity with leading brands at a competitive price, reducing your overall system cost without compromising on quality or reliability.
Global Support: With multi-language website support and direct contact via email, WhatsApp, and phone, our team is ready to assist with your technical inquiries and sample requests.
■ Part numbering system

■ Shapes and dimensions (UNIT:mm)

Type | Amax | Bmax | C | D | E | F | G | I |
CDRH124 | 12.30 | 4.50 | 5.0 | 12.0 | 7.60 | 2.80 | 5.40 | 7.0 |
CDRH125 | 12.30 | 6.00 | 5.0 | 12.0 | 7.60 | 2.80 | 5.40 | 7.0 |
CDRH127 | 12.30 | 8.00 | 5.0 | 12.0 | 7.60 | 2.80 | 5.40 | 7.0 |
CDRH129 | 12.30 | 10.0 | 5.0 | 12.0 | 7.60 | 2.80 | 5.40 | 7.0 |
※ CDRH129 is only a trial production model
Specification table:
■ SERIES:CDRH124,CD125,CD127
| Part number | Inductance (uH)(※) | Tolerance | Rds (ohm) Max | Rated Current Amp(※) |
| CDRH124/125/127 | 1.0 | M | 8m/11m/6.5m | 7.8/8.5/10.40 |
| CDKH124/127 | 1.5 | M | 11m/8.50m | 7.20/9.20 |
| CDRH124/125/127 | 2.2 | M | 13m/15.5m/11m | 6.0/6.5/8.40 |
| CDRH127 | 2.7 | M | 12.5m | 7.8 |
| CDRH124/125/127 | 3.3 | M | 18m/18m/13m | 5.4/5.717.6 |
| CDRH124/127 | 3.9 | M | 21m/14m | 5.10/7.20 |
| CDRH124/125/127 | 4.7 | M | 22m/20.5m/15.8m | 4.8/4.7/6.8 |
| CDRH124/125/127 | 5.6 | M | 13m/15.5m/16.7m | 6.0/6.5/8.40 |
| CDKH124/125/127 | 6.8 | M | 26m/14.3m/18.4m | 4.2/4.4/6.50 |
| CDRH12 | 8.2 | M | 31m | 4 |
| CDRH124/125/127 | 10.0 | M | 39m/25m/23.4m | 3.9/4.0/5.4 |
| CDKH124/125/127 | 12.0 | M | 44m/27m/26m | 3.4/3.5/4.9 |
| CDKH124/125/127 | 15.0 | M | 55m/30m/28.6m | 3.2/3.3/4.5 |
| CDRH124/125/127 | 18.0 | M | 65m/39m/34m | 2.9/3.0/3.9 |
| CDKH124/125/127 | 22.0 | M | 75m/43m/36m | 2.5/2.8/3.6 |
| CDRH124/125/127 | 27.0 | M | 81m/51m/51m | 2.25/2.3/3.3 |
| CDKH124/125/127 | 33.0 | M | 112m/57m/64.8m | 2.0/2.11/3.0 |
| CDRH124/125/127 | 39.0 | M | 121m/68m/73m | 1.9/2.0/2.75 |
| CDKH124/125/127 | 47.0 | M | 166m/75m/100m | 1.8/1.8/2.5 |
| CDRH124/125/127 | 56.0 | M | 182m/110m/110m | 1.7/1.7/2.35 |
| CDRH124/125/127 | 68.0 | M | 205m/120m/140m | 1.55/1.50/2.10 |
| CDRH124/125/127 | 82.0 | M | 243m/140m/160m | 1.35/1.4/1.95 |
| CDKH124/125/127 | 100 | M | 290m/160m/220m | 1.2/1.3/1.7 |
| CDRH124/125/127 | 120 | M | 358m/170m/250m | 1.1/1.1/1.6 |
| CDRH124/125/127 | 150 | M | 0.45/0.23/0.28 | 0.95/1.0/1.42 |
| CDRH124/125/127 | 180 | M | 0.51/0.29/0.29 | 0.85/0.9/1.3 |
| CDKH124/125/127 | 220 | M | 0.66/0.40/0.30 | 0.80/0.80/1.16 |
| CDRH124/125/127 | 270 | M | 0.74/0.46/0.41 | 0.65/0.75/1.06 |
| CDRH124/125/127 | 330 | M | 0.94/0.51/0.46 | 0.55/0.68/0.95 |
| CDRH124/125/127 | 390 | M | 1.05/0.69/0.49 | 0.50/0.65/0.88 |
| CDRH124/125/127 | 470 | M | 1.30/0.77/0.69 | 0.44/0.58/0.79 |
| CDRH124/125/127 | 560 | M | 1.53/0.86/0.79 | 0.40/0.54/0.73 |
| CDKH124 | 680 | M | 1.72 | 0.37 |
| CDKH124 | 820 | M | 2.21 | 0.35 |
| CDRH124 | 1000 | M | 2.67 | 0.32 |
※ 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
■ Real Packing of SMT Inductor
Tape and Reel Dimensions:(unit:mm)


Surface Mounting Type, Reel/Tape List:
PACKING TYPE | Reel Size (mm) | Tape Size (mm) | Q'ty, Pcs/reel | |||||||||||
A | B | G | N | E | F | D0 | P | P0 | P2 | W | T | K0 | ||
LSMT-01 | 178 | 11 | 8.5 | 60 | 1.75 | 3.5 | 1.5 | 4 | 4 | 2 | 8 | 0.25 | 2.1 | 2000 |
02 | 178 | 15 | 12.5 | 60 | 1.75 | 5.5 | 1.5 | 8 | 4 | 2 | 12 | 0.30 | 1.7 | 1000 |
03 | 178 | 15 | 12.5 | 60 | 1.75 | 5.5 | 1.5 | 8 | 4 | 2 | 12 | 0.30 | 2.1 | 1000 |
04 | 330 | 17 | 12.5 | 100 | 1.75 | 5.5 | 1.5 | 8 | 4 | 2 | 12 | 0.35 | 3.0 | 2000 |
05 | 330 | 17 | 12.5 | 100 | 1.75 | 5.5 | 1.5 | 8 | 4 | 2 | 12 | 0.35 | 2.4 | 2000 |
06 | 330 | 21 | 16.5 | 100 | 1.75 | 7.5 | 1.5 | 12 | 4 | 2 | 16 | 0.35 | 5.5 | 2000 |
07 | 330 | 21 | 16.5 | 100 | 1.75 | 7.5 | 1.5 | 12 | 4 | 2 | 16 | 0.30 | 3.5 | 1500 |
08 | 330 | 21 | 16.5 | 100 | 1.75 | 11.5 | 1.5 | 12 | 4 | 2 | 24 | 0.40 | 5.9 | 1000 |
09 | 330 | 21 | 16.5 | 100 | 1.75 | 7.5 | 1.5 | 12 | 4 | 2 | 16 | 0.30 | 4.0 | 1000 |
10 | 330 | 29 | 24.5 | 100 | 1.75 | 11.5 | 1.5 | 16 | 4 | 2 | 24 | 0.30 | 4.2 | 1000 |
11 | 330 | 29 | 24.5 | 100 | 1.75 | 11.5 | 1.5 | 16 | 4 | 2 | 24 | 0.30 | 4.8 | 500 |
12 | 330 | 29 | 24.5 | 100 | 1.75 | 11.5 | 1.5 | 16 | 4 | 2 | 24 | 0.30 | 5.2 | 500 |
13 | 330 | 29 | 24.5 | 100 | 1.75 | 11.5 | 1.5 | 16 | 4 | 2 | 24 | 0.30 | 6.0 | 500 |
14 | 330 | 29 | 24.5 | 100 | 1.75 | 11.5 | 1.5 | 16 | 4 | 2 | 24 | 0.30 | 8.2 | 500 |
**Not all packaging forms are included, and packaging materials are selected based on the principle of "suitability" when shipping. Therefore, physical packaging may not follow the above list**
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
WhatsApp: +86-13806118535
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.