Product Overview
The CMI3216 Series represents a line of Multilayer Chip Ferrite Inductors designed for various electronic applications. These inductors offer precise electrical characteristics and are built with high-quality materials, including a ferrite body and silver internal electrodes, plated with Ni/Sn for durability. They are suitable for applications requiring reliable inductance and current handling capabilities.
| Model Size | L (mm) | W (mm) | T (mm) | Terminal Electrode Thickness (mm) |
|---|---|---|---|---|
| 321609 | 3.2 0.20 (0.126 0.008) | 1.6 0.20 (0.063 0.008) | 0.9 0.20 (0.035 0.008) | 0.5 0.3 (0.020 0.012) |
| 321611 | 3.2 0.20 (0.126 0.008) | 1.6 0.20 (0.063 0.008) | 1.1 0.20 (0.043 0.008) | 0.5 0.3 (0.020 0.012) |
Example: CMI 321609 U 1R0 K T
| Part NO. | Tolerance (%) | Inductance (H) | Q Value (min) | RDC ()max | Test Frequency (MHz) | Test Voltage (mV) | SRF (MHz) min | Rated Current (mA)max |
|---|---|---|---|---|---|---|---|---|
| CMI321609V47NKT | 10 | 0.047 | 30 | 0.15 | 50 | 50 | 320 | 300 |
| CMI321609V56NKT | 10 | 0.056 | 30 | 0.20 | 50 | 50 | 320 | 300 |
| CMI321609V68NKT | 10 | 0.068 | 30 | 0.25 | 50 | 50 | 280 | 300 |
| CMI321609V82NKT | 10 | 0.082 | 30 | 0.25 | 50 | 50 | 280 | 300 |
| CMI321609VR10KT | 10 | 0.10 | 25 | 0.25 | 25 | 50 | 235 | 250 |
| CMI321609VR12KT | 10 | 0.12 | 25 | 0.25 | 25 | 50 | 220 | 250 |
| CMI321609VR15KT | 10 | 0.15 | 25 | 0.25 | 25 | 50 | 200 | 250 |
| CMI321609VR18KT | 10 | 0.18 | 25 | 0.30 | 25 | 50 | 185 | 250 |
| CMI321609VR22KT | 10 | 0.22 | 25 | 0.30 | 25 | 50 | 170 | 250 |
| CMI321609VR27KT | 10 | 0.27 | 25 | 0.30 | 25 | 50 | 150 | 250 |
| CMI321609VR33KT | 10 | 0.33 | 25 | 0.30 | 25 | 50 | 145 | 250 |
| CMI321609VR39KT | 10 | 0.39 | 30 | 0.50 | 25 | 50 | 135 | 200 |
| CMI321609VR47KT | 10 | 0.47 | 30 | 0.50 | 25 | 50 | 125 | 200 |
| CMI321609VR56KT | 10 | 0.56 | 30 | 0.50 | 25 | 50 | 115 | 150 |
| CMI321609VR68KT | 10 | 0.68 | 30 | 0.50 | 25 | 50 | 105 | 150 |
| CMI321609VR82KT | 10 | 0.82 | 30 | 0.60 | 25 | 50 | 100 | 150 |
| CMI321609U1R0KT | 10 | 1.0 | 35 | 0.30 | 10 | 50 | 75 | 100 |
| CMI321609U1R2KT | 10 | 1.2 | 35 | 0.40 | 10 | 50 | 65 | 100 |
| CMI321609U1R5KT | 10 | 1.5 | 35 | 0.40 | 10 | 50 | 60 | 50 |
| CMI321609U1R8KT | 10 | 1.8 | 35 | 0.40 | 10 | 50 | 55 | 50 |
| CMI321609U2R2KT | 10 | 2.2 | 35 | 0.50 | 10 | 50 | 50 | 50 |
| CMI321609U2R7KT | 10 | 2.7 | 35 | 0.50 | 10 | 50 | 45 | 50 |
| CMI321609U3R3KT | 10 | 3.3 | 35 | 0.50 | 10 | 50 | 41 | 50 |
| CMI321609U3R9KT | 10 | 3.9 | 35 | 0.60 | 10 | 50 | 38 | 50 |
| CMI321609U4R7KT | 10 | 4.7 | 35 | 0.65 | 10 | 50 | 35 | 25 |
| CMI321609U5R6KT | 10 | 5.6 | 35 | 0.80 | 4 | 50 | 32 | 25 |
| CMI321609X6R8KT | 10 | 6.8 | 35 | 0.80 | 4 | 50 | 29 | 25 |
| CMI321609X8R2KT | 10 | 8.2 | 35 | 0.80 | 4 | 50 | 26 | 25 |
| CMI321609X100KT | 10 | 10 | 35 | 0.80 | 2 | 50 | 24 | 25 |
| CMI321609X120KT | 10 | 12 | 35 | 0.90 | 2 | 50 | 22 | 15 |
| CMI321609J150KT | 10 | 15 | 30 | 1.00 | 1 | 50 | 19 | 5 |
| CMI321609J180KT | 10 | 18 | 30 | 1.00 | 1 | 50 | 18 | 5 |
| CMI321609J220KT | 10 | 22 | 30 | 1.20 | 1 | 50 | 16 | 5 |
| CMI321609J270KT | 10 | 27 | 30 | 1.20 | 1 | 50 | 14 | 5 |
| CMI321609J330KT | 10 | 33 | 30 | 1.30 | 1 | 50 | 13 | 5 |
| CMI321609J390KT | 10 | 39 | 30 | 1.30 | 1 | 50 | 13 | 5 |
| CMI321611J470KT | 10 | 47 | 30 | 1.60 | 1 | 50 | 12 | 5 |
| CMI321611J560MT | 20 | 56 | 30 | 1.80 | 1 | 50 | 12 | 5 |
| CMI321611J680MT | 20 | 68 | 30 | 2.00 | 1 | 50 | 11 | 5 |
| CMI321611J820MT | 20 | 82 | 30 | 2.40 | 1 | 50 | 11 | 5 |
| CMI321611J101MT | 20 | 100 | 30 | 3.00 | 1 | 50 | 8 | 5 |
| No. | Item | Requirements | Test Methods and Remarks |
|---|---|---|---|
| 1 | Operating Temperature Range | -40+85 | |
| 2 | Solder ability | At least 95% of terminal electrode should be covered with solder. | Preheating temperature: 120 to 150; Preheating time: 60s; Solder: 96.5%Sn/3.0%Ag/0.5%Cu; Solder temperature: 2455; Immersion tin depth: 10mm; Duration: 51s; Dip performance to a flux of about: 3 ~ 5 s |
| 3 | Resistance to Soldering | At least 95% of terminal electrode should be covered with solder. No mechanical damage. Inductance: V,U change within 20%; X change within 25%; J change within 30%. Q value change(ferrite): within 30% | Preheating temperature: 120 to 150; Preheating time: 60s; Solder: 96.5%Sn/3.0%Ag/0.5%Cu; Solder temperature: 2605; Immersion tin depth: 10mm; Duration: 101s; Dip performance to a flux of about: 3 ~ 5 s |
| 4 | Adhesion of electrode | The termination and body should be no damage. | Applied force: 10N for 3216 series. Keep time: 101S |
| 5 | Low temperature resistance | No mechanical damage. Inductance change: within 10%; Q value change(ferrite): within 30% | Temperature: -402; Testing time: 1000+24/-0 h |
| 6 | Bending strength | No mechanical damage. | Testing board: glass epoxy-resin substrate; For 0.5 mm/s compression speed, curvature: 2mm, hold time 20s1s |
| 7 | Vibration | No mechanical damage. Inductance change: within 10%; Q value change(ferrite): within 30% | Amplitude modulation: 1.5mm; Test time: A period of 2h in each of 3 mutually perpendicular directions. Frequency range: 10Hz to 55Hz to 10Hz for 1min. |
| 8 | High temperature resistance | No mechanical damage. Inductance change: within 10%; Q value change(ferrite): within 30% | Testing time: 1000+24/-0 h; Temperature: 852 |
| 9 | Static Humidity | No mechanical damage. Inductance change: within 10%; Q value change(ferrite): within 30% | Humidity: 90% to 95% RH; Temperature: 602; Testing time: 1000+24/-0 h |
| 10 | High temperature load | No mechanical damage. Inductance change: within 10%; Q value change(ferrite): within 30% | Impose current: at rated current; Testing time: 1000+24/-0 h; Temperature: 852 |
| 11 | Temperature Shock | No mechanical damage. Inductance change: within 10%; Q value change(ferrite): within 30% | Temperature: -40 for 303min +85 for 303min; Number of cycles: 32 |
Note: When there are questions concerning, measurement shall be made after 242hrs of recovery under the standard condition.
| Size | Reel Quantity | Box Quantity | Case Quantity |
|---|---|---|---|
| 321611 | 3000 | 30000 | 180000 |
| 321609 | 4000 | 40000 | 240000 |
The company does not use ODS such as CCl4 (carbon tetrachloride) and HCFC in the production process.