power inductor LanTu Micro SNR4030-220MT with metallized ferrite core and enhanced shock resistance
Product Overview
The SNR4030 Series from SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD. is an automatic assembly constructed power inductor featuring magnetic resin shielding. This design significantly reduces buzz noise to ultra-low levels, offers large current handling with low DC resistance, and provides excellent shock resistance and damage-free durability due to metallization on the ferrite core. Its closed magnetic circuit design minimizes leakage flux and enhances Electro Magnetic Interference (EMI) resistance, while its compact size saves PCB real estate and power. This series is RoHS, Halogen Free, and REACH compliant.
Applications include: LED backlights, flat-screen TVs, blue-ray disc players, set-top boxes, notebooks, desktop computers, servers, graphic cards, portable gaming devices, personal navigation systems, personal multimedia devices, automotive systems, telecommunication base stations, and DC-DC converters.
Product Attributes
- Brand: SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD.
- Series: SNR4030
- Type: Magnetic Resin Shielded SMD Power Inductors
- Certifications: RoHS, Halogen Free, REACH Compliance
- Construction: Automatic assembly, magnetic resin shielded
- Magnetic Circuit: Closed magnetic circuit design
Technical Specifications
| Part No. | Inductance (H) | Inductance Tolerance | Test Frequency | Test Voltage | DCR () Typical | DCR () Max | Saturation Current (A) Max | Temperature Rise Current (A) Max |
|---|---|---|---|---|---|---|---|---|
| SNR4030-1R0M | 1.0 | 20% | 100KHz | 1.0V | 0.014 | 0.018 | 5.26 | 4.15 |
| SNR4030-1R2M | 1.2 | 20% | 100KHz | 1.0V | 0.015 | 0.020 | 5.26 | 3.82 |
| SNR4030-1R5M | 1.5 | 20% | 100KHz | 1.0V | 0.020 | 0.026 | 4.84 | 3.34 |
| SNR4030-1R8M | 1.8 | 20% | 100KHz | 1.0V | 0.025 | 0.033 | 4.84 | 3.20 |
| SNR4030-2R2M | 2.2 | 20% | 100KHz | 1.0V | 0.030 | 0.039 | 4.40 | 2.95 |
| SNR4030-3R3M | 3.3 | 20% | 100KHz | 1.0V | 0.040 | 0.050 | 3.30 | 2.40 |
| SNR4030-4R7M | 4.7 | 20% | 100KHz | 1.0V | 0.060 | 0.076 | 2.90 | 2.00 |
| SNR4030-5R6M | 5.6 | 20% | 100KHz | 1.0V | 0.073 | 0.091 | 2.75 | 1.90 |
| SNR4030-6R8M | 6.8 | 20% | 100KHz | 1.0V | 0.090 | 0.115 | 2.60 | 1.60 |
| SNR4030-8R2M | 8.2 | 20% | 100KHz | 1.0V | 0.095 | 0.122 | 2.10 | 1.60 |
| SNR4030-100M | 10 | 20% | 100KHz | 1.0V | 0.100 | 0.130 | 1.95 | 1.50 |
| SNR4030-120M | 12 | 20% | 100KHz | 1.0V | 0.135 | 0.172 | 1.70 | 1.30 |
| SNR4030-150M | 15 | 20% | 100KHz | 1.0V | 0.190 | 0.230 | 1.65 | 1.11 |
| SNR4030-220M | 22 | 20% | 100KHz | 1.0V | 0.225 | 0.290 | 1.30 | 1.00 |
| SNR4030-330M | 33 | 20% | 100KHz | 1.0V | 0.330 | 0.420 | 1.10 | 0.84 |
| SNR4030-470M | 47 | 20% | 100KHz | 1.0V | 0.445 | 0.570 | 0.95 | 0.72 |
| SNR4030-680M | 68 | 20% | 100KHz | 1.0V | 0.868 | 1.100 | 0.72 | 0.52 |
| SNR4030-820M | 82 | 20% | 100KHz | 1.0V | 1.060 | 1.280 | 0.66 | 0.47 |
| SNR4030-101M | 100 | 20% | 100KHz | 1.0V | 1.150 | 1.480 | 0.60 | 0.45 |
| SNR4030-121M | 120 | 20% | 100KHz | 1.0V | 1.350 | 1.700 | 0.55 | 0.42 |
Dimensions
| Part No. | L (mm) | W (mm) | H (mm) | A (mm) | B (mm) | C (mm) | D (mm) | E (mm) | F (mm) | G (mm) | H (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| SNR4030 | 4.0 0.3 | 4.0 0.3 | 3.0 Max | 2.1 0.2 | 3.3 0.2 | 1.1 Typ | 1.9 Typ | 3.7 Typ |
Environmental Data
| Parameter | Value |
|---|---|
| Operating Temperature | -40 to +125 (Including coils self-temperature rise) |
Packaging
| Packing Type | Reel Quantity | Inside Box Quantity | Outside Carton Quantity |
|---|---|---|---|
| Tape & Reel (T) | 2000 PCS | 8000 PCS | 32,000 PCS |
| Bulk Package (B) |
Tape and Reel Specifications:
- Tape Dimension (mm): W=12, P=8, W1=5.5
- Reel Dimensions (mm): A=12.4, B=100, C=13, D=330
- Cover tape peel force: 10 to 120g
- Noodle strip peeling angle: 165 to 180
Reliability Testing
(Details of specific tests and requirements are available in the original document.)
- Terminal Strength (SMT & DIP)
- Resistance to Flexure
- Dropping Test
- Solderability
- Vibration Test
- Thermal Shock
- Low Temperature Storage
- High Temperature Storage
- Damp Heat (Steady States)
- Heat endurance of Reflow soldering
- Resistance to solvent test
- Overload test
- Voltage resistance test
Recommended Reflow Soldering Curve
(Refer to the original document for the graphical representation and specific parameters.)
Reminders for Using These Products
- Storage period: within 12 months under conditions (5~40C, 35~65% RH).
- Avoid use and storage in gas corrosive environments (salt, acid, alkali, etc.).
- Do not touch electrodes directly with bare hands.
- Handle products carefully to prevent damage.
- Do not bend terminals with excessive stress.
- Do not rinse coils; 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.
- Allow sufficient thermal design margin for self-heating during operation.
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