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Specifications
Current - Saturation (Isat):
1.4A
Mfr. Part #:
SDRS7032-100NT
Package:
SMD,7x7mm
Key Attributes
Model Number:
SDRS7032-100NT
Product Description
Product Overview
The SDRS7032 Series from SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD. are shielded SMD power inductors designed for high saturation current and low DC resistance. Featuring a closed magnetic circuit to minimize leakage, these inductors offer high-accuracy 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 applications such as thin-screen TVs, LCDs, AV equipment, gaming equipment, and DC/DC converters.
Product Attributes
- Brand: LANTU MICRO ELECTRIC TECHNOLOGY
- Series: SDRS7032
- Type: Shielded SMD Power Inductors
- Certifications: RoHS, Halogen Free, REACH Compliance
- Magnetic Circuit Design: Closed magnetic circuit
- Mounting Type: Surface Mount Device (SMD)
- Packaging: Bulk Package (B), Tape & Reel (T)
Technical Specifications
| Part No. | Inductance (H) | Tolerance | Test Frequency | DCR () Max | Saturation Current (A) Max | Temperature Rise Current (A) Max |
|---|---|---|---|---|---|---|
| SDRS7032-3R3N | 3.3 | 30% | 100KHz | 0.023 | 1.90 | 1.90 |
| SDRS7032-4R7N | 4.7 | 30% | 100KHz | 0.036 | 1.70 | 1.70 |
| SDRS7032-6R8N | 6.8 | 30% | 100KHz | 0.041 | 1.60 | 1.60 |
| SDRS7032-100N | 10 | 30% | 100KHz | 0.053 | 1.40 | 1.40 |
| SDRS7032-150N | 15 | 30% | 100KHz | 0.075 | 1.10 | 1.10 |
| SDRS7032-220N | 22 | 30% | 100KHz | 0.110 | 0.96 | 0.96 |
| SDRS7032-330N | 33 | 30% | 100KHz | 0.160 | 0.75 | 0.75 |
| SDRS7032-470N | 47 | 30% | 100KHz | 0.240 | 0.67 | 0.67 |
| SDRS7032-680N | 68 | 30% | 100KHz | 0.310 | 0.59 | 0.59 |
| SDRS7032-101N | 100 | 30% | 100KHz | 0.450 | 0.45 | 0.45 |
| SDRS7032-151N | 150 | 30% | 100KHz | 0.650 | 0.37 | 0.37 |
| SDRS7032-221M | 220 | 20% | 100KHz | 1.050 | 0.29 | 0.29 |
| SDRS7032-331M | 330 | 20% | 100KHz | 1.670 | 0.22 | 0.22 |
| SDRS7032-471M | 470 | 20% | 100KHz | 2.050 | 0.20 | 0.20 |
| SDRS7032-681M | 680 | 20% | 100KHz | 3.150 | 0.16 | 0.16 |
| Part No. | External Dimensions (LWH) (mm) | A (mm) | B (mm) | C (mm) | D (mm) | E (mm) | H (mm) | I (mm) | J (mm) |
|---|---|---|---|---|---|---|---|---|---|
| SDRS7032 | 7.07.03.2 | 7.00.2 | 7.00.2 | 3.20.2 | 4.0 | 2.0 | 2.2 | 2.0 | 4.0 |
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 or equivalent
- DC Resistance (DCR): Chroma 16502 or equivalent
Product Identification: SDRS 7032 [Inductance] [Tolerance] [Packing]
- Inductance: e.g., 100 (for 10 H)
- Tolerance: J:5%, K: 10%, L: 15%, M: 20%, P: 25%, N: 30%
- Packing: B (Bulk Package), T (Tape & Reel)
Packaging:
| 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) |
|---|---|---|---|---|---|---|---|---|---|---|
| SDRS7032 | 16 | 12 | 7.5 | 16.4 | 60 | 13 | 330 | 1000 | 3000 | 12,000 |
Tape and Reel Specifications:
- Cover tape peel force: 10 to 120g
- Noodle strip peeling angle: 165 to 180
Reliability Testing:
| Item | Requirements | Test Methods and Remarks |
|---|---|---|
| Terminal Strength (SMT) | Meet requirements without any loose terminal | Pulling test (force varies by terminal area), Solder paste thickness: 0.12mm |
| Terminal Strength (DIP) | Meet requirements without any loose terminal | Pulling test (force varies by terminal diameter) |
| 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 | No visible mechanical damage. 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 range: 10 to 55 Hz and return to 10 Hz in approx. 1 minute. Applied for 2 hours in each 3 mutually perpendicular directions (total of 6 hours). |
| Thermal Shock | No visible mechanical damage. Inductance change: Within 10% (Mn-Zn: Within 30%). Q factor change: Within 20%. | 100 cycles of temperature shock (-55~40 to 85~125). 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% (SMD series only). DCR/DCR10%. | Refer to reflow curve, 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, drying at room temp for 5Min, brushing 10 times. |
| Overload test | During the test no smoke, no peculiar smell, no fire. The characteristic is normal after test. | Apply twice as rated current for 5 minutes. |
| Voltage resistance test | During the test no breakdown. The characteristic is normal after test. | DC1000V, Current: 1mA, Time: 1Min. (For parts with two coils) |
Recommended reflow soldering curve: Conditions to be adjusted and confirmed according to user's 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 gas corrosive environments (salt, acid, alkali, etc.).
- Avoid direct contact with terminals by bare hands due to oil secretions.
- 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 by yourself; contact the manufacturer if cleaning is necessary.
- Do not expose products to magnets or magnetic fields.
- Preheat components before soldering; 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 sufficient thermal design margin for self-heating when power is ON.
- For non-magnetic shield types, carefully lay out coils on the circuit board to prevent malfunctions due to magnetic interference.
2410121625_LanTu-Micro-SDRS7032-100NT_C19267853.pdf
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