RoHS Compliant LanTu Micro SDRH105R-470MT Shielded SMD Power Inductors for Electronic Power Supplies
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Product Description
Product Overview
The SDRH105R Series Shielded SMD Power Inductors from SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD. are designed for high performance in demanding applications. Featuring a closed magnetic circuit for reduced leakage, high saturation current, and low DCR, these inductors are ideal for automatic mounting due to their high-precision dimensions. They are available in various package sizes and inductance ranges, and comply with RoHS, Halogen Free, and REACH standards. Key applications include power supplies for VTRs, LCD televisions, notebook PCs, portable communication equipment, and DC/DC converters.
Product Attributes
- Brand: SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD.
- Series: SDRH105R
- Type: Shielded SMD Power Inductors
- Certifications: RoHS, Halogen Free, REACH Compliance
- Magnetic Circuit Design: Closed magnetic circuit
Technical Specifications
| Part Number | Inductance (H) | Tolerance | Test Frequency | DCR () Max @ 0A | Saturation Current (A) Max | Temperature Rise Current (A) Max | Dimensions (LWH) (mm) |
|---|---|---|---|---|---|---|---|
| SDRH105R-3R3N | 3.3 | 30% | 100KHz | 0.013 | 9.50 | 6.50 | 10.310.55.0 |
| SDRH105R-4R7N | 4.7 | 30% | 100KHz | 0.016 | 9.20 | 6.30 | 10.310.55.0 |
| SDRH105R-6R8N | 6.8 | 30% | 100KHz | 0.020 | 7.00 | 6.00 | 10.310.55.0 |
| SDRH105R-8R2N | 8.2 | 30% | 100KHz | 0.023 | 5.50 | 5.00 | 10.310.55.0 |
| SDRH105R-100N | 10 | 30% | 100KHz | 0.250 | 5.10 | 4.40 | 10.310.55.0 |
| SDRH105R-120N | 12 | 30% | 100KHz | 0.032 | 4.90 | 4.00 | 10.310.55.0 |
| SDRH105R-150N | 15 | 30% | 100KHz | 0.040 | 4.20 | 3.60 | 10.310.55.0 |
| SDRH105R-180M | 18 | 20% | 100KHz | 0.046 | 3.70 | 3.40 | 10.310.55.0 |
| SDRH105R-220M | 22 | 20% | 100KHz | 0.058 | 3.30 | 3.20 | 10.310.55.0 |
| SDRH105R-270M | 27 | 20% | 100KHz | 0.650 | 3.20 | 3.00 | 10.310.55.0 |
| SDRH105R-330M | 33 | 20% | 100KHz | 0.810 | 2.70 | 2.60 | 10.310.55.0 |
| SDRH105R-390M | 39 | 20% | 100KHz | 0.103 | 2.48 | 2.50 | 10.310.55.0 |
| SDRH105R-470M | 47 | 20% | 100KHz | 0.122 | 2.35 | 2.30 | 10.310.55.0 |
| SDRH105R-560M | 56 | 20% | 100KHz | 0.144 | 2.30 | 2.10 | 10.310.55.0 |
| SDRH105R-680M | 68 | 20% | 100KHz | 0.193 | 2.00 | 1.90 | 10.310.55.0 |
| SDRH105R-820M | 82 | 20% | 100KHz | 0.219 | 1.80 | 1.60 | 10.310.55.0 |
| SDRH105R-101M | 100 | 20% | 100KHz | 0.247 | 1.50 | 1.35 | 10.310.55.0 |
| SDRH105R-121M | 120 | 20% | 100KHz | 0.298 | 1.40 | 1.18 | 10.310.55.0 |
| SDRH105R-151M | 150 | 20% | 100KHz | 0.355 | 1.30 | 1.10 | 10.310.55.0 |
| SDRH105R-181M | 180 | 20% | 100KHz | 0.393 | 1.20 | 1.00 | 10.310.55.0 |
| SDRH105R-221M | 220 | 20% | 100KHz | 0.483 | 1.08 | 0.94 | 10.310.55.0 |
| SDRH105R-271M | 270 | 20% | 100KHz | 0.632 | 0.88 | 0.80 | 10.310.55.0 |
| SDRH105R-331M | 330 | 20% | 100KHz | 0.780 | 0.85 | 0.73 | 10.310.55.0 |
| SDRH105R-391M | 390 | 20% | 100KHz | 0.957 | 0.78 | 0.70 | 10.310.55.0 |
| SDRH105R-471M | 470 | 20% | 100KHz | 1.220 | 0.71 | 0.54 | 10.310.55.0 |
| SDRH105R-561M | 560 | 20% | 100KHz | 1.352 | 0.65 | 0.52 | 10.310.55.0 |
| SDRH105R-681M | 680 | 20% | 100KHz | 1.519 | 0.59 | 0.51 | 10.310.55.0 |
| SDRH105R-821M | 820 | 20% | 100KHz | 1.694 | 0.51 | 0.48 | 10.310.55.0 |
| SDRH105R-102M | 1000 | 20% | 100KHz | 1.946 | 0.49 | 0.42 | 10.310.55.0 |
Environmental Data
- Operating Temperature: -40 to +125 (Including coils self-temperature rise)
Test Equipment
- Inductance (L): HP4284A or HP4285A LCR meter or equivalent
- Saturation Current (Isat) & Temperature Rise Current (Irms): HP4284+42841A
- DC Resistance (DCR): Chroma 16502 or equivalent
Product Identification
SDRH 105R 100 N T
- Type: SDRH (Shielded SMD Power Inductors)
- Outer Dimensions (LWH) (mm): 105R (10.310.55.0)
- Inductance: e.g., 100 (10 H)
- Inductance Tolerance: J:5%, K: 10%, L: 15%, M: 20%, P: 25%, N: 30%
- Packing: T (Tape & Reel), B (Bulk Package)
Shape and Dimensions
| Part No | A (Max) | B (Max) | C (Max) | D | E | F | H | I | J |
|---|---|---|---|---|---|---|---|---|---|
| SDRH105R | 10.3 | 10.5 | 5.0 | 7.7 | 3.0 | 1.2 | 3.6 | 1.7 | 7.3 |
Packaging Specifications
| Part No. | Tape Dimension W (mm) | Tape Dimension P (mm) | Tape Dimension W1 (mm) | Reel Dimensions A (mm) | Reel Dimensions B (mm) | Reel Dimensions C (mm) | Reel Dimensions D (mm) | REEL (PCS) | Inside Box (PCS) | Outside Carton (PCS) |
|---|---|---|---|---|---|---|---|---|---|---|
| SDRH105R | 24 | 16 | 11.5 | 24.4 | 60 | 13 | 330 | 800 | 1600 | 6400 |
Reliability Testing
| Item | Requirements | Test Methods and Remarks |
|---|---|---|
| Terminal Strength (SMT) | Meet requirements without any loose terminal | Pulling test: Defined forces based on terminal sectional area (A). Solder paste thickness: 0.12mm. Keep time: 101s, Speed: 1.0mm/s. |
| Terminal Strength (DIP) | Meet requirements without any loose terminal | Pull Force applied gradually to terminal for 10 seconds, force varies with terminal diameter. |
| Resistance to Flexure | No visible mechanical damage. | Solder to test jig, apply force in direction shown. Flexure: 2mm. Speed: 0.5mm/sec. Keep time: 30 sec. |
| Dropping | No case deformation or change in appearance. No short and no open. | Drop packaged products from 1m height, 1 angle, 3 ridges and 6 surfaces, twice in each direction. |
| Solderability | Wetting shall exceed 75% coverage. Terminals must have 95% minimum solder coverage. | Solder temperature: 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%. | Subject to simple harmonic motion, frequency 10 to 55 Hz, traversed in 1 minute. Applied for 2 hours in each of 3 mutually perpendicular directions. |
| Thermal Shock | No visible mechanical damage. Inductance change: Within 10%. Q factor change: Within 20%. | 100 cycles of temperature shock between (85~125) and (-55~40). Transforming interval: Max. 20 sec. |
| Low temperature Storage | No visible mechanical damage. Inductance change: Within 10%. Q factor change: Within 20%. | Temperature: -55~-402. Duration: 962 hours. |
| High temperature Storage | No visible mechanical damage. Inductance change: Within 10%. Q factor change: Within 20%. | Temperature: 125~852. Duration: 962 hours. |
| Damp Heat (Steady States) | No visible mechanical damage. Inductance change: Within 10%. Q factor change: Within 20%. | 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%. | Refer to reflow curve, go through reflow twice. Peak temperature: 260+0/-5. |
| Resistance to solvent test | No case deformation or change in appearance or obliteration of marking. | Dip parts into IPA solvent for 50.5Min, dry for 5Min, brushing 10 times. |
| Overload test | During the test no smoke, no peculiar smell, no fire. Characteristic is normal after test. | Apply twice rated current for 5 minutes. |
| Voltage resistance test | During the test no breakdown. Characteristic is normal after test. | DC1000V, Current: 1mA, Time: 1Min. (For parts with two coils) |
Recommended Reflow Soldering Curve
The recommended reflow conditions are set according to soldering equipment. Users should adjust and confirm according to their specific environment/equipment.
Reminders for Using These Products
- Storage: Within 12 months, temperature 5~40C, humidity 35~65% RH or less.
- Environment: Avoid gas corrosion (salt, acid, alkali, etc.).
- Handling: Avoid direct contact with terminals to prevent solderability issues. Handle carefully to prevent damage.
- Terminals: Do not bend terminals excessively.
- Cleaning: Do not rinse coils; contact SXN if cleaning is necessary.
- Magnetic Fields: Do not expose to magnets or magnetic fields.
- Preheating: Preheating is required before soldering. Temperature difference between solder and chip should not exceed 150C.
- Soldering Corrections: Post-mounting corrections should be within specifications. Overheating may cause short circuits, performance degradation, or reduced lifespan.
- Thermal Design: Account for self-heating when power is ON.
- Non-magnetic Shield Type: Careful coil placement on the PCB is needed to prevent malfunctions due to magnetic interference.
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Company
Beijing Silk Road Enterprise Management Services Co., Ltd.
Location
16 Floor, Unit B, Jiatai International Mansion, No 41, Dongsihuan Zhong Road, Chaoyang District, Beijing
Contact Person
Sellina