Epoxy resin coated axial fixed inductors LanTu Micro AL0307-331K with broad inductance range options
Axial Fixed Inductors - AL0307 Series
Product Overview
The AL0307 Series Axial Fixed Inductors from SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD. are designed for reliable performance in a wide range of electronic applications. Featuring an epoxy resin coating for enhanced humidity resistance and durability, these inductors offer a compact, lightweight design with a broad inductance range. They are engineered for high Q values and self-resonant frequencies, making them suitable for automatic insertion processes with tape packaging. These inductors comply with RoHS, Halogen Free, and REACH standards.
Product Attributes
- Brand: LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD.
- Product Line: AL0307 Series
- Type: Axial Fixed Inductors
- Coating: Epoxy resin
- Certifications: RoHS, Halogen Free, REACH Compliance
- Packaging Options: Bulk Package (B), Tape Packaging (TF)
Applications
- Televisions, personal computers
- Radios, telephones
- Chargers, fast charge
- Other various electronic products
Technical Specifications
Environmental Data
- Operating Temperature: -25 to +85 (Including coils self-temperature rise)
Dimensions
| Part No | External Dimensions (LH) (mm) | Type | Inductance Tolerance | Packaging |
|---|---|---|---|---|
| AL0307 | 3.27.62 | Axial Fixed Inductors | J:5%, K: 10%, L: 15%, M: 20%, P: 25%, N: 30% | B (Bulk), TF (Tape) |
Shape and Dimensions
| Part No | A (Max) | B (Max) | C (Max) | F2 (mm) |
|---|---|---|---|---|
| AL0307 | 7.62 | 3.0 / 3.2 | 0.500.1 | - |
Electrical Characteristics
| Part No | Inductance (H) | Tolerance | Q Min @ Test Freq. (MHz) | SRF Min (MHz) | DCR Max () | Rated Current Max (mA) |
|---|---|---|---|---|---|---|
| AL0307-1R0M | 1.0 | 20% | 40 @ 25.2 | 150 | 0.15 | 740 |
| AL0307-1R2M | 1.2 | 20% | 40 @ 7.96 | 150 | 0.18 | 740 |
| AL0307-1R5M | 1.5 | 20% | 40 @ 7.96 | 150 | 0.20 | 700 |
| AL0307-1R8M | 1.8 | 20% | 50 @ 7.96 | 125 | 0.23 | 655 |
| AL0307-2R2M | 2.2 | 20% | 50 @ 7.96 | 110 | 0.27 | 630 |
| AL0307-2R7M | 2.7 | 20% | 50 @ 7.96 | 95 | 0.28 | 595 |
| AL0307-3R3M | 3.3 | 20% | 50 @ 7.96 | 70 | 0.30 | 575 |
| AL0307-3R9M | 3.9 | 20% | 50 @ 7.96 | 65 | 0.32 | 555 |
| AL0307-4R7M | 4.7 | 20% | 50 @ 7.96 | 36 | 0.35 | 530 |
| AL0307-5R6M | 5.6 | 20% | 50 @ 7.96 | 32 | 0.40 | 500 |
| AL0307-6R8M | 6.8 | 20% | 50 @ 7.96 | 28 | 0.48 | 470 |
| AL0307-8R2M | 8.2 | 20% | 50 @ 7.96 | 23 | 0.56 | 425 |
| AL0307-100K | 10 | 10% | 50 @ 7.96 | 18 | 0.75 | 370 |
| AL0307-120K | 12 | 10% | 50 @ 2.52 | 17 | 0.80 | 350 |
| AL0307-150K | 15 | 10% | 50 @ 2.52 | 16 | 0.93 | 335 |
| AL0307-180K | 18 | 10% | 50 @ 2.52 | 15 | 1.00 | 315 |
| AL0307-220K | 22 | 10% | 50 @ 2.52 | 13 | 1.20 | 285 |
| AL0307-270K | 27 | 10% | 50 @ 2.52 | 11 | 1.80 | 270 |
| AL0307-330K | 33 | 10% | 50 @ 2.52 | 10 | 2.20 | 255 |
| AL0307-390K | 39 | 10% | 50 @ 2.52 | 9.5 | 2.30 | 240 |
| AL0307-470K | 47 | 10% | 50 @ 2.52 | 8.5 | 2.60 | 205 |
| AL0307-560K | 56 | 10% | 50 @ 2.52 | 7.5 | 2.90 | 195 |
| AL0307-680K | 68 | 10% | 50 @ 2.52 | 6.5 | 3.30 | 185 |
| AL0307-820K | 82 | 10% | 50 @ 2.52 | 6.0 | 3.80 | 175 |
| AL0307-101K | 100 | 10% | 50 @ 2.52 | 5.5 | 4.20 | 165 |
| AL0307-121K | 120 | 10% | 50 @ 0.796 | 5.4 | 4.70 | 160 |
| AL0307-151K | 150 | 10% | 50 @ 0.796 | 4.7 | 5.40 | 150 |
| AL0307-181K | 180 | 10% | 50 @ 0.796 | 4.3 | 6.00 | 140 |
| AL0307-221K | 220 | 10% | 60 @ 0.796 | 4.0 | 7.00 | 130 |
| AL0307-271K | 270 | 10% | 60 @ 0.796 | 3.7 | 7.70 | 120 |
| AL0307-331K | 330 | 10% | 60 @ 0.796 | 3.4 | 11.1 | 100 |
| AL0307-391K | 390 | 10% | 60 @ 0.796 | 2.8 | 12.6 | 95 |
| AL0307-471K | 470 | 10% | 60 @ 0.796 | 2.5 | 14.0 | 90 |
| AL0307-561K | 560 | 10% | 60 @ 0.796 | 2.3 | 15.5 | 85 |
| AL0307-681K | 680 | 10% | 60 @ 0.796 | 2.0 | 25.3 | 75 |
| AL0307-821K | 820 | 10% | 60 @ 0.796 | 1.5 | 27.5 | 65 |
| AL0307-102K | 1000 | 10% | 50 @ 0.796 | 1.2 | 31.4 | 60 |
Current Definitions
- Saturation Current (Isat): The current at which inductance drops by 10% from its initial value (Ta=25).
- Temperature Rise Current (Irms): The DC current causing a temperature rise of T 40 (Ta=25).
- Rated DC Current: The lower value between Isat and Irms.
Packaging Specifications
| Series | Type | Packaging | Quantity (pcs) | Carton Size (mm) (LWH) | Parts/Box | Parts/Reel | Parts/Carton |
|---|---|---|---|---|---|---|---|
| AL0307 | T5A | Tape and Reel | 3000 | 440275392 | - | - | 72,000 |
Reliability Testing
| Item | Requirements | Test Methods and Remarks |
|---|---|---|
| Terminal Strength (SMT) | Meet requirements without any loose terminal. | Pulling test (force defined by terminal area), Solder paste thickness: 0.12mm. Keep time: 101s, Speed: 1.0mm/s. |
| Terminal Strength (DIP) | Meet requirements without any loose terminal. | Applied force: 5N to 40N (based on terminal diameter), Duration: 10s. Pull Force applied gradually and maintained for 10 seconds. |
| Resistance to Flexure | No visible mechanical damage. | Flexure: 2mm. Pressurizing Speed: 0.5mm/s. Keep time: 30s. |
| Dropping | No case deformation or change in appearance. No short and no open. | Drop packaged products 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: 3s. Solder: Sn/3.0Ag/0.5Cu. Flux: 25% Resin and 75% ethanol. |
| Vibration | Inductance change: Within 10%. Q factor change: Within 20%. | Frequency varied between 10 and 55 Hz. Applied for 2 hours in each of 3 mutually perpendicular directions (total 6 hours). |
| Thermal Shock | Inductance change: Within 10%. Q factor change: Within 20%. | 100 cycles of temperature shock between (85~125) and (-55~40). Transforming interval: Max. 20s. |
| Low Temperature Storage | Inductance change: Within 10%. Q factor change: Within 20%. | Temperature: -55~-402. Duration: 962 hours. |
| High Temperature Storage | Inductance change: Within 10%. Q factor change: Within 20%. | Temperature: 125~852. Duration: 962 hours. |
| Damp Heat (Steady States) | Inductance change: Within 10%. Q factor change: Within 20%. | Temperature: 602. Humidity: 90% to 95% RH. Duration: 962 hours. |
| Heat endurance of Reflow soldering | L/L10%. Q/Q30% (SMD series only). DCR/DCR10%. | Refer to reflow curve, 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, brush 10 times. |
| Overload test | During test: no smoke, no peculiar smell, no fire. Characteristics normal after test. | Apply twice rated current for 5 minutes. |
| Voltage resistance test | During test: no breakdown. Characteristics normal after test. | DC1000V, Current: 1mA, Time: 1Min. (For parts with two coils). |
Recommended Lead-free Wave Soldering Curve (DIP-Type)
Note: The recommended wave soldering curve is a reference. Adjust and confirm soldering conditions based on user's environment/equipment.
Soldering Iron (Rework)
- Hand soldering: Max temperature 350, max 3 times.
- Avoid direct contact with the inductor body or wire during soldering.
- Hand soldering is not recommended.
Reminders for Using These Products
- Storage: Within 12 months under conditions (5~40C, 35~65% RH). Terminal solderability may degrade beyond this period.
- Environment: Do not use or store in corrosive gas environments (salt, acid, alkali, etc.).
- Handling: Avoid direct contact with terminals due to hand grease affecting solderability. Handle products carefully to prevent damage from dropping.
- Terminal Bending: Do not bend terminals excessively to avoid wire fracture.
- Cleaning: Do not rinse coils. Contact the manufacturer if cleaning is necessary.
- Magnetic Fields: Keep away from magnets or magnetic objects.
- Preheating: Preheat components before soldering. Temperature difference between solder and chip should not exceed 150C.
- Soldering Correction: Perform soldering corrections within specified conditions. Overheating may cause short circuits, performance degradation, or reduced lifespan.
- Self-Heating: Account for self-heating when designing for thermal management.
- Non-Magnetic Shield Type: Careful coil layout is required to prevent malfunctions due to magnetic interference.
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