1. Product Introduction of CDRRI Inductor
Production details: CDRRI inductor is an improvement on the basic functions of I-shaped inductors. In order to protect the wires, loops and coils from the external magnetic field, and to weaken the interference effect of the electromagnetic field generated by the circuit on other components, magnetic materials are used. An inductance mode for shielding, whose main function is like reducing the inductance's interference to the outside world.
2. Product Parameter (Specification) of CDRRI Inductor
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Shape and Size : (Dimensions are in mm) |
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CDRRI 73, 74
CDRRI 124,125,127,129
 
CDRRI 63B 74B 105B 125B
Solder joint size 
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| CDRRI 73 / 74 TYPE | |||||
| Five ring number | L (μH) | DC RESISTANCE | RATED DC CURRENT | ||
| ( OHM )MAX | ( Amp )MAX | ||||
| DRRI73 | DRRI74 | DRRI73 | DRRI74 | ||
| 2R9N | 2.9 | ||||
| 4R0N | 4 | ||||
| 5R5N | 5.5 | ||||
| 100M | 10 | 0.072 | 0.049 | 1.68 | 1.84 |
| 120M | 12 | 0.098 | 0.058 | 1.52 | 1.71 |
| 150M | 15 | 0.13 | 0.081 | 1.33 | 1.47 |
| 180M | 18 | 0.14 | 0.091 | 1.2 | 1.31 |
| 220M | 22 | 0.19 | 0.11 | 1.07 | 1.23 |
| 270M | 27 | 0.21 | 0.15 | 0.96 | 1.12 |
| 330M | 33 | 0.24 | 0.17 | 0.91 | 0.96 |
| 390M | 39 | 0.32 | 0.23 | 0.77 | 0.91 |
| 470M | 47 | 0.36 | 0.26 | 0.76 | 0.88 |
| 560M | 56 | 0.47 | 0.35 | 0.68 | 0.75 |
| 680M | 68 | 0.52 | 0.38 | 0.61 | 0.69 |
| 820M | 82 | 0.69 | 0.43 | 0.57 | 0.61 |
| 101M | 100 | 0.79 | 0.61 | 0.5 | 0.6 |
| 121M | 120 | 0.89 | 0.66 | 0.49 | 0.52 |
| 151M | 150 | 1.27 | 0.88 | 0.43 | 0.46 |
| 181M | 180 | 1.45 | 0.98 | 0.39 | 0.42 |
| 221M | 220 | 1.65 | 1.17 | 0.35 | 0.36 |
| 271M | 270 | 2.31 | 1.64 |
0.32
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0.34 |
| 331M | 330 | 2.62 | 1.86 | 0.28 | 0.32 |
| 391M | 390 | 2.94 | 2.85 | 0.26 | 0.29 |
| 471M | 470 | 4.18 | 3.01 | 0.24 | 0.26 |
| 561M | 560 | 4.67 | 3.62 | 0.22 | 0.23 |
| 681M | 680 | 5.73 | 4.63 | 0.19 | 0.22 |
| 821M | 820 | 6.54 | 5.2 | 0.18 | 0.2 |
| 102M | 1000 | 9.44 | 6 | 0.16 | 0.18 |
| Tolerance of Inductance and Measuring Freq. : | |||||
| CDRRI62B 2.9~5.5uH (N) +40% -20% @ 7.96MHz 0.25V; 10~330uH(M) ±20% @1kHz 0.25V | |||||
| CDRRI64B. SMTDRRI73 . SMTDRRI74 10~1000uH(M) ±20% @1kHz 0.25V | |||||
| CDRRI124 Series characteristics | |||||
| Five ring number Type | L | TESTING | DC | RATED DC | |
| FREQ. | RESISTANCE | CURRENT | |||
| uH | (KHz). | (Ω) MAX. | A MAX | ||
| CDRRI124-3R9K | 3.9 | 1 | 0.015 | 6.5 | |
| CDRRI124-4R7K | 4.7 | 1 | 0.018 | 5.7 | |
| CDRRI124-6R8K | 6.8 | 1 | 0.023 | 4.9 | |
| CDRRI124-8R2K | 8.2 | 1 | 0.026 | 4.6 | |
| CDRRI124-100K | 10 | 1 | 0.028 | 4.5 | |
| CDRRI124-120K | 12 | 1 | 0.038 | 4 | |
| CDRRI124-150K | 15 | 1 | 0.05 | 3.2 | |
| CDRRI124-180K | 18 | 1 | 0.057 | 3.1 | |
| CDRRI124-220K | 22 | 1 | 0.066 | 2.9 | |
| CDRRI124-270K | 27 | 1 | 0.08 | 2.8 | |
| CDRRI124-330K | 33 | 1 | 0.097 | 2.7 | |
| CDRRI124-390K | 39 | 1 | 0.132 | 2.1 | |
| CDRRI124-470K | 47 | 1 | 0.16 | 1.9 | |
| CDRRI124-560K | 56 | 1 | 0.19 | 1.8 | |
| CDRRI124-680K | 68 | 1 | 0.22 | 1.5 | |
| CDRRI124-820K | 82 | 1 | 0.26 | 1.3 | |
| CDRRI124-101K | 100 | 1 | 0.308 | 1.2 | |
| CDRRI124-121K | 120 | 1 | 0.38 | 1.1 | |
| CDRRI124-151K | 150 | 1 | 0.53 | 0.95 | |
| CDRRI124-181K | 180 | 1 | 0.62 | 0.85 | |
| CDRRI124-221K | 220 | 1 | 0.7 | 0.8 | |
| CDRRI124-271M | 270 | 1 | 0.87 | 0.6 | |
| CDRRI124-331M | 330 | 1 | 0.99 | 0.5 | |
| CDRRI 125 Inductance characteristics | |||||
| Five ring number TYPE | L | TESTING | DC | RATED DC | |
| FREQ. | RESISTANCE | CURRENT | |||
| uH | (Ω) MAX. | A MAX | |||
| CDRRI125-1R3N | 1.3 | 7.96MHZ | 0.012 | 8 | |
| CDRRI125-2R1N | 2.1 | 7.96MHZ | 0.014 | 7 | |
| CDRRI125-3R1N | 3.1 | 7.96MHZ | 0.017 | 6 | |
| CDRRI125-4R4N | 4.4 | 7.96MHZ | 0.02 | 5 | |
| CDRRI125-5R8N | 5.8 | 7.96MHZ | 0.021 | 4.4 | |
| CDRRI125-7R5N | 7.5 | 7.96MHZ | 0.024 | 4.2 | |
| CDRRI125-100M | 10 | 1KHZ | 0.025 | 4 | |
| CDRRI125-120M | 12 | 1KHZ | 0.027 | 3.5 | |
| CDRRI125-150M | 15 | 1KHZ | 0.03 | 3.3 | |
| CDRRI125-180M | 18 | 1KHZ | 0.034 | 3 | |
| CDRRI125-220M | 22 | 1KHZ | 0.036 | 2.8 | |
| CDRRI125-270M | 27 | 1KHZ | 0.051 | 2.3 | |
| CDRRI125-330M | 33 | 1KHZ | 0.057 | 2.1 | |
| CDRRI125-390M | 39 | 1KHZ | 0.068 | 2 | |
| CDRRI125-470M | 47 | 1KHZ | 0.075 | 1.8 | |
| CDRRI125-560M | 56 | 1KHZ | 0.11 | 1.7 | |
| CDRRI125-680M | 68 | 1KHZ | 0.12 | 1.5 | |
| CDRRI125-820M | 82 | 1KHZ | 0.14 | 1.4 | |
| CDRRI125-101M | 100 | 1KHZ | 0.16 | 1.3 | |
| CDRRI125-121M | 120 | 1KHZ | 0.17 | 1.1 | |
| CDRRI125-151M | 150 | 1KHZ | 0.23 | 1 | |
| CDRRI125-181M | 180 | 1KHZ | 0.29 | 0.9 | |
| CDRRI125-221M | 220 | 1KHZ | 0.4 | 0.8 | |
| CDRRI125-271M | 270 | 1KHZ | 0.46 | 0.75 | |
| CDRRI125-331M | 330 | 1KHZ | 0.51 | 0.68 | |
| CDRRI125-391M | 390 | 1KHZ | 0.69 | 0.65 | |
| CDRRI125-471M | 470 | 1KHZ | 0.77 | 0.58 | |
| CDRRI125-561M | 560 | 1KHZ | 0.86 | 0.54 | |
| CDRRI125-681M | 680 | 1KHZ | 1.2 | 0.48 | |
| CDRRI125-821M | 820 | 1KHZ | 1.34 | 0.43 | |
| CDRRI125-102M | 1000 | 1KHZ | 1.53 | 0.4 | |
| CDRRI127 129 Inductance characteristics | |||||
| Five ring numberTYPE | L | TESTING | DCR | RATED DC | |
| FREQ. | RESISTANCE | CURRENT | |||
| uH | KHZ 0.3V | (Ω) MAX. | A MAX | ||
| CDRRI127-1R2N | 1.2 | 1 | 0.07 | 9.8 | |
| CDRRI127-2R4N | 2.4 | 1 | 0.012 | 8 | |
| CDRRI127-3R5N | 3.5 | 1 | 0.014 | 7.5 | |
| CDRRI127-4R7N | 4.7 | 1 | 0.016 | 6.8 | |
| CDRRI127-6R1N | 6.1 | 1 | 0.018 | 6.6 | |
| CDRRI127-7R6N | 7.6 | 1 | 0.02 | 5.9 | |
| CDRRI127-100M | 10 | 1 | 0.022 | 5.4 | |
| CDRRI127-120M | 12 | 1 | 0.024 | 4.9 | |
| CDRRI127-150M | 15 | 1 | 0.027 | 4.5 | |
| CDRRI127-180M | 18 | 1 | 0.039 | 3.9 | |
| CDRRI127-220M | 22 | 1 | 0.043 | 3.6 | |
| CDRRI127-270M | 27 | 1 | 0.046 | 3.4 | |
| CDRRI127-330M | 33 | 1 | 0.065 | 3 | |
| CDRRI127-390M | 39 | 1 | 0.073 | 2.75 | |
| CDRRI127-470M | 47 | 1 | 0.1 | 2.5 | |
| CDRRI127-560M | 56 | 1 | 0.11 | 2.35 | |
| CDRRI127-680M | 68 | 1 | 0.14 | 2.1 | |
| CDRRI127-820M | 82 | 1 | 0.16 | 1.95 | |
| CDRRI127-101M | 100 | 1 | 0.22 | 1.7 | |
| CDRRI127-121M | 120 | 1 | 0.25 | 1.6 | |
| CDRRI127-151M | 150 | 1 | 0.28 | 1.42 | |
| CDRRI127-181M | 180 | 1 | 0.35 | 1.3 | |
| CDRRI127-221M | 220 | 1 | 0.39 | 1.16 | |
| CDRRI127-271M | 270 | 1 | 0.56 | 1.06 | |
| CDRRI127-331M | 330 | 1 | 0.64 | 0.95 | |
| CDRRI127-391M | 390 | 1 | 0.7 | 0.88 | |
| CDRRI127-471M | 470 | 1 | 0.98 | 0.79 | |
| CDRRI127-561M | 560 | 1 | 1.07 | 0.73 | |
| CDRRI127-681M | 680 | 1 | 1.46 | 0.67 | |
| CDRRI127-821M | 820 | 1 | 1.64 | 0.6 | |
| CDRRI127-102M | 1000 | 1 | 1.82 | 0.55 | |
| CDRRI129-100M | 10 | 1 | 0.08 | 7.5 | |
| CDRRI129-220M | 22 | 1 | 0.1 | 5 | |
| CDRRI129-390M | 39 | 1 | 0.12 | 4.5 | |
| CDRRI129-470M | 47 | 1 | 0.15 | 3.2 | |
| CDRRI129-560M | 56 | 1 | 0.18 | 3 | |
| CDRRI129-680M | 68 | 1 | 0.45 | 2.5 | |
| CDRRI129-820M | 82 | 1 | 0.65 | 2.3 | |
| CDRRI129-101M | 100 | 1 | 0.28 | 2.1 | |
| CDRRI129-121M | 120 | 1 | 0.35 | 1.9 | |
| CDRRI129-181M | 180 | 1 | 0.45 | 1.8 | |
| CDRRI129-221M | 220 | 1 | 0.55 | 1.8 | |
| CDRRI129-331M | 330 | 1 | 0.68 | 1.9 | |
| CDRRI129-252M | 2500 | 1 | 4.8 | 0.4 | |
| CDRRI129-332M | 3300 | 1 | 5.8 | 0.35 | |
3. Product Feature And Application of CDRRI Inductor
CDRRI inductor feature and application:
1.Can pass a higher current.
2. Directly connected electrode on ferrite core
3. Suitable for surface mounting
4. Strong anti-interference ability
Application in daily life:
1. Power supply for VTRs.
2. LCD televisions.
3. Notebook PCs.
4. Portable communication equipment.
5. DC/DC converters, ect.
4. Product Details of CDRRI Inductor
CDRRI inductor characteristics:
I sat: The current when the inductance become 25% lower than its initial value(Ta = 20℃).
I rms: The current when temperature of coil increases up to MaxΔT=40℃(Ta = 20℃).
Operating temperature: -30℃to 105℃.
5. Product Qualification of CDRRI Inductor
Our CDRRI inductor comply the EU standards and reliability test.Our products adopt low loss design, can pass large current and have high saturation inductance. It is an ideal DC-DC conversion inductance.
6. Deliver, Shipping And Serving of CDRRI Inductor
Our CDRRI inductor are generally delivered in China (6) working days; The foreign delivery date is (10) working days. Our packaging adopts three-level packaging, which is firm and reliable, and can effectively protect the products from damage.
