Shielded SMD Power Inductors LanTu Micro SDRH105R-101MT with Closed Magnetic Circuit and RoHS Compliance
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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 saturation current and low DCR. Featuring a closed magnetic circuit design to minimize leakage, these inductors offer high-precision dimensions suitable for automatic mounting. They are available in various package sizes and a wide inductance range, complying with RoHS, Halogen Free, and REACH standards. Ideal for power supplies in 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
- Mounting Type: SMD (Surface Mount Device)
- Origin: Shenzhen, China (implied by company location)
Technical Specifications
| Part Number | Inductance (H) | Tolerance | Test Frequency | DCR () Max | Saturation Current (A) Max | Temperature Rise Current (A) Max |
|---|---|---|---|---|---|---|
| SDRH105R-3R3N | 3.3 | 30% | 100KHz | 0.013 | 9.50 | 6.50 |
| SDRH105R-4R7N | 4.7 | 30% | 100KHz | 0.016 | 9.20 | 6.30 |
| SDRH105R-6R8N | 6.8 | 30% | 100KHz | 0.020 | 7.00 | 6.00 |
| SDRH105R-8R2N | 8.2 | 30% | 100KHz | 0.023 | 5.50 | 5.00 |
| SDRH105R-100N | 10 | 30% | 100KHz | 0.250 | 5.10 | 4.40 |
| SDRH105R-120N | 12 | 30% | 100KHz | 0.032 | 4.90 | 4.00 |
| SDRH105R-150N | 15 | 30% | 100KHz | 0.040 | 4.20 | 3.60 |
| SDRH105R-180M | 18 | 20% | 100KHz | 0.046 | 3.70 | 3.40 |
| SDRH105R-220M | 22 | 20% | 100KHz | 0.058 | 3.30 | 3.20 |
| SDRH105R-270M | 27 | 20% | 100KHz | 0.650 | 3.20 | 3.00 |
| SDRH105R-330M | 33 | 20% | 100KHz | 0.810 | 2.70 | 2.60 |
| SDRH105R-390M | 39 | 20% | 100KHz | 0.103 | 2.48 | 2.50 |
| SDRH105R-470M | 47 | 20% | 100KHz | 0.122 | 2.35 | 2.30 |
| SDRH105R-560M | 56 | 20% | 100KHz | 0.144 | 2.30 | 2.10 |
| SDRH105R-680M | 68 | 20% | 100KHz | 0.193 | 2.00 | 1.90 |
| SDRH105R-820M | 82 | 20% | 100KHz | 0.219 | 1.80 | 1.60 |
| SDRH105R-101M | 100 | 20% | 100KHz | 0.247 | 1.50 | 1.35 |
| SDRH105R-121M | 120 | 20% | 100KHz | 0.298 | 1.40 | 1.18 |
| SDRH105R-151M | 150 | 20% | 100KHz | 0.355 | 1.30 | 1.10 |
| SDRH105R-181M | 180 | 20% | 100KHz | 0.393 | 1.20 | 1.00 |
| SDRH105R-221M | 220 | 20% | 100KHz | 0.483 | 1.08 | 0.94 |
| SDRH105R-271M | 270 | 20% | 100KHz | 0.632 | 0.88 | 0.80 |
| SDRH105R-331M | 330 | 20% | 100KHz | 0.780 | 0.85 | 0.73 |
| SDRH105R-391M | 390 | 20% | 100KHz | 0.957 | 0.78 | 0.70 |
| SDRH105R-471M | 470 | 20% | 100KHz | 1.220 | 0.71 | 0.54 |
| SDRH105R-561M | 560 | 20% | 100KHz | 1.352 | 0.65 | 0.52 |
| SDRH105R-681M | 680 | 20% | 100KHz | 1.519 | 0.59 | 0.51 |
| SDRH105R-821M | 820 | 20% | 100KHz | 1.694 | 0.51 | 0.48 |
| SDRH105R-102M | 1000 | 20% | 100KHz | 1.946 | 0.49 | 0.42 |
| External Dimensions (LWH) (mm) | Part No | Inductance Tolerance |
|---|---|---|
| 10.3 10.5 5.0 | 105R | J:5%, K: 10%, L: 15%, M: 20%, P: 25%, N: 30% |
| Item | 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 |
| Environmental Data | Specification |
|---|---|
| Operating Temperature | -40 to +125 (Including coils self-temperature rise) |
| Test Equipment | Instrument |
|---|---|
| Inductance (L) | HP4284A, HP4285A LCR meter or equivalent |
| Saturation Current (Isat) & Temperature Rise Current (Irms) | HP4284+42841A |
| DC Resistance (DCR) | Chroma 16502 or equivalent |
| Packaging | Specification |
|---|---|
| Packing Type | B (Bulk Package), T (Tape & Reel) |
| Tape Dimension (mm) | W: 24, P: 16, W1: 11.5 |
| Reel Dimensions (mm) | A: 24.4, B: 60, C: 13, D: 330 |
| Reel Quantity | 800 PCS |
| Inside Box Quantity | 1600 PCS |
| Outside Carton Quantity | 6400 PCS |
| Cover tape peel force | 10 to 120g |
| Noodle strip peeling angle | 165 to 180 |
| Reliability Testing | Requirements | Test Methods and Remarks |
|---|---|---|
| Terminal Strength (SMT) | Meet requirements without any loose terminal | Pulling test based on terminal sectional area; Solder paste thickness: 0.12mm; Keep time: 101s; Speed: 1.0mm/s. |
| Terminal Strength (DIP) | Meet requirements without any loose terminal | Applied force based on terminal diameter (0.35mm to >1.25mm); Duration: 10sec. |
| Resistance to Flexure | No visible mechanical damage | Flexure: 2mm; Pressurizing Speed: 0.5mm/sec; Keep time: 30 sec. |
| Dropping | No case deformation or change in appearance; No short and no open | Drop from 1m high 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 | 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% | Frequency varied between 10 and 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% (Mn-Zn: Within 30%); Q factor change: Within 20% | 100 cycles of temperature cycling between high (85~125) and low (-55~40) temperatures. 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% | 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% | 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% | 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%; DCR/DCR10% | Peak temperature: 260+0/-5; Performed twice. |
| Resistance to solvent test | No case deformation or change in appearance or obliteration of marking | Dip into IPA solvent for 50.5Min, dry for 5Min, brush 10 times. |
| Overload test | No smoke, no peculiar smell, no fire; Characteristic is normal after test | Apply twice the rated current for 5 minutes. |
| Voltage resistance test | No breakdown during test; 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 period is within 12 months under conditions (temperature: 5~40C, humidity: 35 to 65% RH or less).
- Do not use or store in locations with gas corrosion (salt, acid, alkali, etc.).
- Avoid direct contact with terminals by bare hands to prevent reduced solderability.
- Handle products carefully to prevent damage from dropping or improper removal.
- Do not bend terminals with excessive stress to avoid wire fracture.
- Do not rinse coils; contact the manufacturer if cleaning is necessary.
- Do not expose products to magnets or magnetic fields.
- Preheat components before soldering; the temperature difference between solder and chip should not exceed 150C.
- Soldering corrections after mounting should be within specified conditions to avoid short circuits, performance degradation, or lifespan reduction.
- Allow for sufficient thermal design due to self-heating when power is ON.
- For non-magnetic shielded types, carefully lay out coils 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