Beijing Silk Road Enterprise Management Services Co., Ltd.
| Current - Saturation (Isat) | 2.1A |
| Description | 2.1A SMD,7.5x7.5mm Fixed Inductors RoHS |
| Mfr. Part # | SDRI74-220MT |
| Package | SMD,7.5x7.5mm |
| Model Number | SDRI74-220MT |
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Product Specification
| Current - Saturation (Isat) | 2.1A | Description | 2.1A SMD,7.5x7.5mm Fixed Inductors RoHS |
| Mfr. Part # | SDRI74-220MT | Package | SMD,7.5x7.5mm |
| Model Number | SDRI74-220MT |
The SDRI74 Series Shielded SMD Power Inductors from SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD. are designed for high-performance power supply applications. Featuring a closed magnetic circuit for reduced leakage, high saturation current, and low DC resistance, these inductors are ideal for automatic mounting due to their high-precision dimensions. They are available in various package sizes and a wide inductance range, complying with RoHS, Halogen Free, and REACH standards. Applications include power supplies for VTRs, LCD televisions, notebook PCs, portable communication equipment, and DC/DC converters.
General Specifications:
| Item | Specification | Details |
|---|---|---|
| Operating Temperature | -55 to +125 | (Including coils self-temperature rise) |
| External Dimensions (LWH) | 7.57.54.5 mm | (Model SDRI74) |
| Inductance Tolerance | J: 5%, K: 10%, L: 15%, M: 20%, P: 25%, N: 30% | |
| Test Equipment | LCR Meters, Power Meters, Resistance Meters | (e.g., HP4284A, HP4285A, Chroma 16502) |
Electrical Characteristics:
| Part No. | Inductance (H) @ 0A | Tolerance | Test Freq (L) | Q Factor Min @ Test Freq | DCR () Max | Saturation Current (A) Max | Temperature Rise Current (A) Max |
|---|---|---|---|---|---|---|---|
| SDRI74-2R2N | 2.2 | 30% | 100KHz | 30 @ 1MHz | 0.0147 | 5.20 | 5.00 |
| SDRI74-3R3N | 3.3 | 30% | 100KHz | 30 @ 1MHz | 0.0214 | 4.60 | 4.00 |
| SDRI74-4R7N | 4.7 | 30% | 100KHz | 30 @ 1MHz | 0.0310 | 3.80 | 3.40 |
| SDRI74-6R8N | 6.8 | 30% | 100KHz | 30 @ 1MHz | 0.035 | 3.20 | 2.30 |
| SDRI74-8R2N | 8.2 | 30% | 100KHz | 30 @ 1MHz | 0.042 | 3.00 | 2.10 |
| SDRI74-100N | 10 | 30% | 100KHz | 35 @ 1MHz | 0.049 | 2.95 | 1.84 |
| SDRI74-120M | 12 | 20% | 100KHz | 35 @ 1MHz | 0.058 | 2.85 | 1.71 |
| SDRI74-150M | 15 | 20% | 100KHz | 35 @ 1MHz | 0.081 | 2.80 | 1.47 |
| SDRI74-180M | 18 | 20% | 100KHz | 35 @ 1MHz | 0.091 | 2.50 | 1.31 |
| SDRI74-220M | 22 | 20% | 100KHz | 35 @ 1MHz | 0.110 | 2.10 | 1.23 |
| SDRI74-270M | 27 | 20% | 100KHz | 35 @ 1MHz | 0.150 | 1.90 | 1.12 |
| SDRI74-330M | 33 | 20% | 100KHz | 35 @ 1MHz | 0.170 | 1.80 | 0.96 |
| SDRI74-390M | 39 | 20% | 100KHz | 35 @ 1MHz | 0.230 | 1.70 | 0.91 |
| SDRI74-470M | 47 | 20% | 100KHz | 35 @ 1MHz | 0.260 | 1.50 | 0.88 |
| SDRI74-560M | 56 | 20% | 100KHz | 35 @ 1MHz | 0.350 | 1.32 | 0.75 |
| SDRI74-680M | 68 | 20% | 100KHz | 35 @ 1MHz | 0.380 | 1.08 | 0.69 |
| SDRI74-820M | 82 | 20% | 100KHz | 35 @ 1MHz | 0.430 | 1.05 | 0.61 |
| SDRI74-101M | 100 | 20% | 100KHz | 40 @ 0.796MHz | 0.610 | 1.02 | 0.60 |
| SDRI74-121M | 120 | 20% | 100KHz | 40 @ 0.796MHz | 0.660 | 0.98 | 0.52 |
| SDRI74-151M | 150 | 20% | 100KHz | 40 @ 0.796MHz | 0.880 | 0.95 | 0.46 |
| SDRI74-181M | 180 | 20% | 100KHz | 40 @ 0.796MHz | 0.980 | 0.74 | 0.42 |
| SDRI74-221M | 220 | 20% | 100KHz | 40 @ 0.796MHz | 1.170 | 0.70 | 0.36 |
| SDRI74-271M | 270 | 20% | 100KHz | 40 @ 0.796MHz | 1.640 | 0.57 | 0.34 |
| SDRI74-331M | 330 | 20% | 100KHz | 40 @ 0.796MHz | 1.860 | 0.56 | 0.32 |
| SDRI74-391M | 390 | 20% | 100KHz | 40 @ 0.796MHz | 2.850 | 0.45 | 0.29 |
| SDRI74-471M | 470 | 20% | 100KHz | 40 @ 0.796MHz | 3.010 | 0.45 | 0.26 |
| SDRI74-561M | 560 | 20% | 100KHz | 40 @ 0.796MHz | 3.620 | 0.43 | 0.23 |
| SDRI74-681M | 680 | 20% | 100KHz | 40 @ 0.796MHz | 4.630 | 0.37 | 0.22 |
| SDRI74-821M | 820 | 20% | 100KHz | 40 @ 0.796MHz | 5.200 | 0.35 | 0.20 |
| SDRI74-102M | 1000 | 20% | 100KHz | 40 @ 0.796MHz | 6.000 | 0.33 | 0.18 |
Definitions:
Dimensions (mm):
| Part No. | A (Max) | B (Max) | C (Max) | D | E | F | G | H |
|---|---|---|---|---|---|---|---|---|
| SDRI74 | 7.5 | 7.5 | 4.5 | 1.8 | 5.0 | 1.6 | 4.8 | 2.2 |
Recommended Land Pattern:
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Packaging:
| Part No. | Tape Dimension (W x P x H) | Reel Dimensions (A x B x C x D) | Reel (PCS) | Inside Box (PCS) | Outside Carton (PCS) |
|---|---|---|---|---|---|
| SDRI74 | 16 x 12 x 11.5 | 16.5 x 13 x 330 x 100 | 1000 | 3000 | 12,000 |
Tape and Reel Specifications:
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Reel Dimensions (mm):
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Tape Dimension (mm):
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Cover Tape Peel Off Condition:
Reliability Testing:
| Item | Requirements | Test Methods and Remarks |
|---|---|---|
| Terminal Strength (SMT/DIP) | Meet specified force and duration requirements without loose terminals. | Reference documents: GB/T 2423.60-2008, JIS C 5321:1997. Includes pulling, solder paste thickness, terminal diameter considerations. |
| Resistance to Flexure | No visible mechanical damage. | JIS C 5321:1997. Flexure: 2mm. Speed: 0.5mm/sec. Duration: 30 sec. |
| Dropping | No case deformation or change in appearance. No short and no open. | GB/T 2423.7-2018. Drop packaged products from 1m height in 1 angle, 3 ridges and 6 surfaces, twice in each direction. |
| Solderability | Wetting shall exceed 75% coverage. Terminals must have 95% minimum solder coverage. | GB/T 2423.28-2005. Solder temp: 2402. Duration: 3 sec. Solder: Sn/3.0Ag/0.5Cu. Flux: 25% Resin and 75% ethanol. |
| Vibration | No visible mechanical damage. Inductance change: Within 10%. Q factor change: Within 20%. | GB/T 2423.10-2019. Amplitude: 1.5mm. Frequency: 10 to 55 Hz and return. Duration: 2 hours in each of 3 mutually perpendicular directions. |
| Thermal Shock | No visible mechanical damage. Inductance change: Within 10% (Mn-Zn: Within 30%). Q factor change: Within 20%. | GB/T 2423.22-2012 Method Na. 100 cycles of temperature transitions between (85~125) and (-55~40). Transforming interval: Max. 20 sec. |
| Low Temperature Storage | No visible mechanical damage. Inductance change: Within 10% (Mn-Zn: Within 30%). Q factor change: Within 20%. | GB/T 2423.1-2008 Method Ab. Temperature: -55~-402. Duration: 962 hours. |
| High Temperature Storage | No visible mechanical damage. Inductance change: Within 10% (Mn-Zn: Within 30%). Q factor change: Within 20%. | GB/T 2423.2-2008 Method Bb. Temperature: 125~852. Duration: 962 hours. |
| Damp Heat (Steady States) | No visible mechanical damage. Inductance change: Within 10% (Mn-Zn: Within 30%). Q factor change: Within 20%. | GB/T 2423.3-2016. Temperature: 602. Humidity: 90% to 95% RH. Duration: 962 hours. |
| Heat endurance of Reflow soldering | No significant defects in appearance. L/L10% (Mn-Zn: L/L30%). Q/Q30% (SMD series only). DCR/DCR10%. | GJB 360B-2009. Performed twice according to recommended reflow curve. Peak temperature: 260+0/-5. |
| Resistance to solvent test | No case deformation or change in appearance or obliteration of marking. | IEC 68-2-45:1993. Dip parts into IPA solvent for 50.5Min, then dry at room temp for 5Min, then brush 10 times. |
| Overload test | During test: no smoke, no peculiar smell, no fire. Characteristics normal after test. | JIS C5311-6.13. Apply twice rated current for 5 minutes. |
| Voltage resistance test | During test: no breakdown. Characteristics normal after test. | MIL-STD-202G Method 301. For parts with two coils: DC1000V, Current: 1mA, Time: 1Min. |
Recommended Reflow Soldering Curve:
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Reminders for Using These Products:
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer
Year Established:
2009
Employee Number:
>>300
Ecer Certification：
Verified Supplier
Company Profile Beijing Silk Road Enterprise Management Services Co.,Ltd. is a professional company focus on integrated circuit ic business. Beijing Silk Road will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining an... Company Profile Beijing Silk Road Enterprise Management Services Co.,Ltd. is a professional company focus on integrated circuit ic business. Beijing Silk Road will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining an...
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