Beijing Silk Road Enterprise Management Services Co., Ltd.
| Current - Saturation (Isat) | 700mA |
| Description | 700mA SMD,7.5x7.5mm Fixed Inductors RoHS |
| Mfr. Part # | SDRI74-221MT |
| Package | SMD,7.5x7.5mm |
| Model Number | SDRI74-221MT |
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Product Specification
| Current - Saturation (Isat) | 700mA | Description | 700mA SMD,7.5x7.5mm Fixed Inductors RoHS |
| Mfr. Part # | SDRI74-221MT | Package | SMD,7.5x7.5mm |
| Model Number | SDRI74-221MT |
Product Overview
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 design to minimize leakage flux, these inductors offer high saturation current and low DC resistance. Their high-precision dimensions ensure suitability for automatic mounting, and they are available in various package sizes and inductance ranges. These inductors comply with RoHS, Halogen Free, and REACH standards, making them ideal for demanding electronic applications.
General Specifications:
| Item | Specification |
|---|---|
| Operating Temperature | -55 to +125 (Including coils self-temperature rise) |
| Test Equipment (Inductance) | HP4284A, HP4285A or equivalent |
| Test Equipment (Current) | HP4284+42841A or equivalent |
| Test Equipment (Q Factor) | HP4285A or equivalent |
| Test Equipment (DCR) | Chroma 16502 or equivalent |
Product Identification:
| Component | Description |
|---|---|
| SDRI | Shielded SMD Power Inductors (Closed Magnetic Circuit) |
| 74 | External Dimensions (LWH): 7.57.54.5 mm |
| Inductance Value | e.g., 470 (47 H) |
| Inductance Tolerance | J: 5%, K: 10%, L: 15%, M: 20%, P: 25%, N: 30% |
| Packing | T: Tape & Reel, B: Bulk Package |
Electrical Characteristics:
| Part No. | Inductance (H) @ 0A | Tolerance | Test Freq (100KHz) | Q Factor Min @ 1MHz | DCR () Max | Saturation Current (A) Max | Temperature Rise Current (A) Max |
|---|---|---|---|---|---|---|---|
| SDRI74-2R2N | 2.2 | 30% | 100KHz | 30 | 0.0147 | 5.20 | 5.00 |
| SDRI74-3R3N | 3.3 | 30% | 100KHz | 30 | 0.0214 | 4.60 | 4.00 |
| SDRI74-4R7N | 4.7 | 30% | 100KHz | 30 | 0.0310 | 3.80 | 3.40 |
| SDRI74-6R8N | 6.8 | 30% | 100KHz | 30 | 0.035 | 3.20 | 2.30 |
| SDRI74-8R2N | 8.2 | 30% | 100KHz | 30 | 0.042 | 3.00 | 2.10 |
| SDRI74-100N | 10 | 30% | 100KHz | 35 | 0.049 | 2.95 | 1.84 |
| SDRI74-120M | 12 | 20% | 100KHz | 35 | 0.058 | 2.85 | 1.71 |
| SDRI74-150M | 15 | 20% | 100KHz | 35 | 0.081 | 2.80 | 1.47 |
| SDRI74-180M | 18 | 20% | 100KHz | 35 | 0.091 | 2.50 | 1.31 |
| SDRI74-220M | 22 | 20% | 100KHz | 35 | 0.110 | 2.10 | 1.23 |
| SDRI74-270M | 27 | 20% | 100KHz | 35 | 0.150 | 1.90 | 1.12 |
| SDRI74-330M | 33 | 20% | 100KHz | 35 | 0.170 | 1.80 | 0.96 |
| SDRI74-390M | 39 | 20% | 100KHz | 35 | 0.230 | 1.70 | 0.91 |
| SDRI74-470M | 47 | 20% | 100KHz | 35 | 0.260 | 1.50 | 0.88 |
| SDRI74-560M | 56 | 20% | 100KHz | 35 | 0.350 | 1.32 | 0.75 |
| SDRI74-680M | 68 | 20% | 100KHz | 35 | 0.380 | 1.08 | 0.69 |
| SDRI74-820M | 82 | 20% | 100KHz | 35 | 0.430 | 1.05 | 0.61 |
| SDRI74-101M | 100 | 20% | 100KHz | 40 | 0.610 | 1.02 | 0.60 |
| SDRI74-121M | 120 | 20% | 100KHz | 40 | 0.660 | 0.98 | 0.52 |
| SDRI74-151M | 150 | 20% | 100KHz | 40 | 0.880 | 0.95 | 0.46 |
| SDRI74-181M | 180 | 20% | 100KHz | 40 | 0.980 | 0.74 | 0.42 |
| SDRI74-221M | 220 | 20% | 100KHz | 40 | 1.170 | 0.70 | 0.36 |
| SDRI74-271M | 270 | 20% | 100KHz | 40 | 1.640 | 0.57 | 0.34 |
| SDRI74-331M | 330 | 20% | 100KHz | 40 | 1.860 | 0.56 | 0.32 |
| SDRI74-391M | 390 | 20% | 100KHz | 40 | 2.850 | 0.45 | 0.29 |
| SDRI74-471M | 470 | 20% | 100KHz | 40 | 3.010 | 0.45 | 0.26 |
| SDRI74-561M | 560 | 20% | 100KHz | 40 | 3.620 | 0.43 | 0.23 |
| SDRI74-681M | 680 | 20% | 100KHz | 40 | 4.630 | 0.37 | 0.22 |
| SDRI74-821M | 820 | 20% | 100KHz | 40 | 5.200 | 0.35 | 0.20 |
| SDRI74-102M | 1000 | 20% | 100KHz | 40 | 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 |
Applications:
Packaging:
| Part No. | Tape Dimension W | P | H | Reel Dimensions A | B | C | D | REEL (PCS) | Inside Box (PCS) | Outside Carton (PCS) |
|---|---|---|---|---|---|---|---|---|---|---|
| SDRI74 | 16 | 12 | 11.5 | 16.5 | 100 | 13 | 330 | 1000 | 3000 | 12,000 |
Reliability Testing:
| Item | Requirements | Test Methods and Remarks |
|---|---|---|
| Terminal Strength (SMT) | Meet specified pull force requirements without loose terminals. | Pulling test (GB/T 2423.60-2008), Solder paste thickness: 0.12mm. |
| Terminal Strength (DIP) | Meet specified pull force requirements without loose terminals. | Pulling test (GB/T 2423.60-2008) based on terminal diameter. |
| Resistance to Flexure | No visible mechanical damage. | JIS C 5321:1997, Flexure: 2mm, Speed: 0.5mm/sec, Keep time: 30 sec. |
| Dropping | No case deformation or change in appearance, no short and no open. | GB/T 2423.7-2018, Drop 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. |
| Vibration | No visible mechanical damage. Inductance change: Within 10%. Q factor change: Within 20%. | GB/T 2423.10-2019, Simple harmonic motion, 10 to 55 Hz, 2 hours in each 3 mutually perpendicular directions. |
| Thermal Shock | No visible mechanical damage. Inductance change: Within 10%. Q factor change: Within 20%. | GB/T 2423.22-2012 Method Na, 100 cycles (85~125 to -55~40). |
| Low temperature Storage | No visible mechanical damage. Inductance change: Within 10%. 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%. 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%. 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%. Q/Q30%. DCR/DCR10%. | GJB 360B-2009, Peak temperature: 260+0/-5, twice reflow. |
| Resistance to solvent test | No case deformation or change in appearance or obliteration of marking. | IEC 68-2-45:1993, Dip into IPA solvent for 50.5Min, dry for 5Min, brushing 10 times. |
| Overload test | During the 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 the test no breakdown. Characteristics normal after test. | MIL-STD-202G Method 301, DC1000V, Current: 1mA, Time: 1Min. |
Recommended Reflow Soldering Curve:
Refer to the provided graph for recommended reflow conditions. Adjustments may be necessary based on user's environment and equipment.
Reminders for Using These Products:
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer
Year Established:
2009
Employee Number:
>>300
Ecer Certification：
Verified Supplier
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