Unshielded DIP Power Inductors - SPK Series
Product Overview
The SPK Series Unshielded DIP Power Inductors from SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD. are designed for spike suppression applications. These inductors offer a low-cost solution with high power handling, high saturation, and low resistance. Their unshielded construction, combined with a core encapsulated by UL heat shrink tubing, provides excellent mechanical and environmental protection. Available in various package sizes and a wide inductance range, they are suitable for automated insertion processes. These inductors are RoHS, Halogen Free, and REACH compliant.
Product Attributes
- Brand: LANTU (implied by company name)
- Origin: SHENZHEN
- Certifications: RoHS, Halogen Free, REACH Compliance
- Construction: Unshielded, Core encapsulated by UL heat shrink tube
- Packaging: Tape packaging available for auto-insertion, Bulk Package (PE bag)
Applications
- TVs and Audio equipment
- Telecommunication devices
- Noise filters
- Chargers, fast charge
- DC/DC converters
Environmental Data
- Operating Temperature: -40 to +125 (including coil self-temperature rise)
Technical Specifications
Product Identification: SPK 0608 503 K TF
Type: SPK (Radial Leaded Fixed Inductors)
Outer Dimensions (LWH) (mm): 0608
Inductance: 50 mH
Tolerance: K (10%)
Packaging: TF (Tape packaging)
Shape and Dimensions
| Part No | A (Max) | B (Min) | C () | D (Max) | E () | F | H |
| SPK0406 | 8.0 mm | 15.0 mm | 2.0 mm | 5.0 mm | 0.55 mm | 0.85 | 2.0 |
| SPK0608 | 11.0 mm | 15.0 mm | 2.5 mm | 7.0 mm | 0.65 mm | 0.95 | 2.5 |
| SPK0707 | 9.5 mm | 15.0 mm | 5.0 mm | 8.0 mm | 0.65 mm | 0.95 | 5.0 |
| SPK0807 | 9.5 mm | 15.0 mm | 5.0 mm | 9.0 mm | 0.65 mm | 0.95 | 5.0 |
| SPK0810 | 13.0 mm | 15.0 mm | 5.0 mm | 9.0 mm | 0.65 mm | 0.95 | 5.0 |
| SPK0912 | 15.0 mm | 15.0 mm | 5.0 mm | 10.0 mm | 0.80 mm | 1.1 | 5.0 |
| SPK1010 | 13.0 mm | 15.0 mm | 5.0 mm | 12.0 mm | 0.80 mm | 1.1 | 5.0 |
| SPK1012 | 15.0 mm | 15.0 mm | 6.0 mm | 12.0 mm | 0.80 mm | 1.1 | 6.0 |
| SPK1016 | 19.0 mm | 15.0 mm | 6.0 mm | 12.0 mm | 0.80 mm | 1.1 | 6.0 |
| SPK1018 | 21.0 mm | 15.0 mm | 6.0 mm | 12.0 mm | 0.80 mm | 1.1 | 6.0 |
| SPK1213 | 16.0 mm | 15.0 mm | 7.5 mm | 14.0 mm | 0.80 mm | 1.1 | 7.5 |
Inductance Tolerance
| Code | Tolerance |
| J | 5% |
| K | 10% |
| L | 15% |
| M | 20% |
| P | 25% |
| N | 30% |
Electrical Characteristics (Sample Data for SPK0406 Series)
| Part No | Inductance L (H) | Tolerance | Q Min @1KHz | SRF Min (MHz) | DCR Max () | Rated Current Max (mA) |
| SPK0406-1R0M- | 1.0 | M | 100 | 7.96 | 0.035 | 2000 |
| SPK0406-1R2M- | 1.2 | M | 100 | 7.96 | 0.058 | 1950 |
| SPK0406-1R5M- | 1.5 | M | 100 | 7.96 | 0.075 | 1900 |
| SPK0406-100M- | 10 | M | 80 | 2.52 | 0.230 | 1000 |
| SPK0406-101M- | 100 | M | 45 | 0.796 | 1.000 | 400 |
| SPK0406-1000M- | 1000 | M | 90 | 0.252 | 0.9 | 140 |
| SPK0406-10000K- | 10000 | K | 45 | 0.0796 | 72.000 | 47 |
Electrical Characteristics (Sample Data for SPK0608 Series)
| Part No | Inductance L (H) | Tolerance | Q Min @1KHz | SRF Min (MHz) | DCR Max () | Rated Current Max (mA) |
| SPK0608-3R3M- | 3.3 | M | 20 | 7.96 | 0.016 | 3500 |
| SPK0608-100M- | 10 | M | 30 | 2.52 | 0.039 | 2000 |
| SPK0608-1000M- | 1000 | M | 100 | 0.252 | 2.1 | 200 |
| SPK0608-10000M- | 10000 | M | 70 | 0.0796 | 29.500 | 65 |
Electrical Characteristics (Sample Data for SPK0707 Series)
| Part No | Inductance L (H) | Tolerance | Q Min @1KHz | SRF Min (MHz) | DCR Max () | Saturation Current Max (mA) | Temperature Rise Current Max (mA) |
| SPK0707-1R0M- | 1.0 | M | 10 | 7.96 | 0.006 | 6600 | 5000 |
| SPK0707-100M- | 10 | M | 20 | 2.52 | 0.043 | 2100 | 1900 |
| SPK0707-1000M- | 1000 | M | 70 | 2.52 | 1.3 | 200 | 190 |
Electrical Characteristics (Sample Data for SPK0807 Series)
| Part No | Inductance L (H) | Tolerance | Q Min @1KHz | SRF Min (MHz) | DCR Max () | Saturation Current Max (mA) | Temperature Rise Current Max (mA) |
| SPK0807-2R2M- | 2.2 | M | 10 | 7.96 | 0.011 | 5500 | 4000 |
| SPK0807-100M- | 10 | M | 20 | 2.52 | 0.031 | 2500 | 2200 |
| SPK0807-1000K- | 1000 | K | 20 | 252 | 1.5 | 260 | 230 |
Electrical Characteristics (Sample Data for SPK0810 Series)
| Part No | Inductance L (H) | Tolerance | Q Min @1KHz | SRF Min (MHz) | DCR Max () | Rated Current Max (mA) |
| SPK0810-3R3M- | 3.3 | M | 30 | 7.96 | 0.012 | 5000 |
| SPK0810-100M- | 10 | M | 50 | 2.52 | 0.025 | 3200 |
| SPK0810-1000M- | 1000 | M | 40 | 0.252 | 1.5 | 280 |
| SPK0810-10000M- | 10000 | M | 20 | 0.0796 | 0.42 | 90 |
Electrical Characteristics (Sample Data for SPK0912 Series)
| Part No | Inductance L (H) | Tolerance | DCR Max () | Rated Current Max (mA) |
| SPK0912-1R0M- | 1.0 | M | 0.011 | 6000 |
| SPK0912-100M- | 10 | M | 0.040 | 4000 |
| SPK0912-1000M- | 1000 | M | 2.000 | 200 |
| SPK0912-10000M- | 10000 | M | 16.00 | 90 |
Electrical Characteristics (Sample Data for SPK1010 Series)
| Part No | Inductance L (H) | Tolerance | Q Min @1KHz | SRF Min (MHz) | DCR Max () | Saturation Current Max (mA) | Temperature Rise Current Max (mA) |
| SPK1010-3R3M- | 3.3 | M | 10 | 7.96 | 0.010 | 8800 | 5900 |
| SPK1010-100M- | 10 | M | 20 | 2.52 | 0.025 | 5000 | 3700 |
| SPK1010-1000M- | 1000 | M | 20 | 252 | 1.1 | 510 | 500 |
| SPK1010-10000K- | 10000 | K | 30 | 79.6 | 0.38 | 170 | 140 |
Electrical Characteristics (Sample Data for SPK1012 Series)
| Part No | Inductance L (H) | Tolerance | Q Min @1KHz | SRF Min (MHz) | DCR Max () | Saturation Current Max (mA) | Temperature Rise Current Max (mA) |
| SPK1012-3R3M- | 3.3 | M | 90 | 7.96 | 0.025 | 5500 | 5500 |
| SPK1012-100M- | 10 | M | 100 | 2.52 | 0.050 | 4200 | 4200 |
| SPK1012-1000K- | 1000 | K | 40 | 252 | 1.60 | 300 | 300 |
| SPK1012-10000K- | 10000 | K | 80 | 79.6 | 0.35 | 180 | 170 |
Electrical Characteristics (Sample Data for SPK1016 Series)
| Part No | Inductance L (H) | Tolerance | DCR Max () | Saturation Current Max (mA) | Temperature Rise Current Max (mA) |
| SPK1016-4R7M- | 4.7 | M | 0.020 | 8500 | 5800 |
| SPK1016-100M- | 10 | M | 0.035 | 7600 | 5000 |
| SPK1016-1000K- | 1000 | K | 1.200 | 700 | 700 |
| SPK1016-10000K- | 10000 | K | 10.00 | 180 | 180 |
Electrical Characteristics (Sample Data for SPK1018 Series)
| Part No | Inductance L (H) | Tolerance | DCR Max () | Saturation Current Max (mA) | Temperature Rise Current Max (mA) |
| SPK1018-4R7K- | 4.7 | K | 0.008 | 10000 | 6000 |
| SPK1018-100K- | 10 | K | 0.017 | 7000 | 4500 |
| SPK1018-1000K- | 1000 | K | 0.844 | 660 | 660 |
| SPK1018-10000K- | 10000 | K | 7.3000 | 220 | 220 |
Electrical Characteristics (Sample Data for SPK1213 Series)
| Part No | Inductance L (H) | Tolerance | DCR Max () | Saturation Current Max (mA) | Temperature Rise Current Max (mA) |
| SPK1213-100M- | 10 | M | 0.023 | 8000 | 5100 |
| SPK1213-1000K- | 1000 | K | 1.000 | 780 | 780 |
| SPK1213-10000K- | 10000 | K | 10.000 | 240 | 240 |
Test Equipment
- Inductance (L): HP4284A, HP4285A LCR meter or equivalent
- Saturation Current (Isat) & RMS Current (Irms): HP4284+42841A or equivalent
- Self-Resonant Frequency (SRF): HM 9461 or equivalent
- Quality Factor (Q): HP4285A or equivalent
- DC Resistance (DCR): Chroma 16502 or equivalent
Packaging Details
| Part No. | Quantity per PE Bag |
| SPK0406 | 1000 PCS |
| SPK0608 | 1000 PCS |
| SPK0707 | 1000 PCS |
| SPK0807 | 1000 PCS |
| SPK0810 | 500 PCS |
| SPK0912 | 300 PCS |
| SPK1010 | 200 PCS |
| SPK1012 | 200 PCS |
| SPK1016 | 200 PCS |
| SPK1018 | 200 PCS |
| SPK1213 | 200 PCS |
Reliability Testing
| Item | Requirements | Test Methods and Remarks |
| Terminal Strength (SMT) | Meet requirements without any loose terminal. | Pulling test: Force applied based on terminal sectional area. Solder paste thickness: 0.12mm. Duration: 101s. Speed: 1.0mm/s. |
| Terminal Strength (DIP) | Meet requirements without any loose terminal. | Applied force: 5N to 40N based on terminal diameter. Duration: 10sec. |
| Resistance to Flexure | No visible mechanical damage. | Flexure: 2mm. Speed: 0.5mm/sec. Duration: 30 sec. |
| Dropping | No case deformation or change in appearance. No short and no open. | Drop packaged products from 1m high (1 angle, 3 ridges, 6 surfaces, twice each direction). |
| Solderability | Terminals must have 95% minimum solder coverage. Wetting shall exceed 75% coverage. | Solder temperature: 2402. Duration: 3 sec. Solder: Sn/3.0Ag/0.5Cu. Flux: 25% Resin and 75% ethanol. |
| Vibration | Inductance change: Within 10%. Q factor change: Within 20%. | Frequency 10-55 Hz, amplitude 1.5mm, 2 hours in 3 directions. |
| Thermal Shock | Inductance change: Within 10%. Q factor change: Within 20%. | 100 cycles of temperature extremes (-55~40 to 85~125). Transforming interval: Max. 20 sec. |
| Low temperature Storage | Inductance change: Within 10%. Q factor change: Within 20%. | Temperature: -402. Duration: 962 hours. |
| High temperature Storage | Inductance change: Within 10%. Q factor change: Within 20%. | Temperature: 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%. DCR/DCR10%. | Peak temperature: 260+0/-5. Tested twice. |
| Resistance to solvent test | No case deformation or change in appearance or obliteration of marking. | Dip in IPA solvent for 5 min, dry for 5 min, brush 10 times. |
| Overload test | No smoke, no peculiar smell, no fire. Characteristic normal after test. | Apply twice rated current for 5 minutes. |
| Voltage resistance test | No breakdown. Characteristic normal after test. | DC1000V, Current: 1mA, Time: 1Min. |
Reminders for Using These Products
- Storage period within 12 months under conditions: 5~40C, 35~65% RH.
- Avoid use and storage in corrosive gas environments.
- Avoid direct contact with terminals to maintain solderability.
- Handle with care to prevent damage.
- Do not excessively bend terminals.
- Do not rinse products; contact manufacturer if cleaning is necessary.
- Keep away from 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 damage.
- Account for self-heating when designing for thermal management.
- For non-magnetic shield types, careful layout is needed to avoid malfunction due to magnetic interference.
