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 and general power inductor applications. These inductors offer a low-cost solution with high power handling, high saturation, and low resistance. They feature an unshielded construction with the core encapsulated by a UL heat shrink tube for enhanced mechanical and environmental protection. Available in various package sizes and a wide inductance range, they are suitable for automated insertion processes. The series is RoHS, Halogen Free, and REACH compliant.
Product Attributes
- Brand: LT- (Implied from product identification)
- Manufacturer: SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD.
- Series: SPK
- Construction: Unshielded
- Core Protection: UL heat shrink tube encapsulation
- Packaging Options: Tape packaging for auto-insertion, Bulk package
- Certifications: RoHS, Halogen Free, REACH Compliance
Technical Specifications
Product Identification: SPK 0608 503 K
- SPK: Type (Radial Leaded Fixed Inductors)
- 0608: External Dimensions (LWH) in mm
- 503: Inductance (50 mH)
- K: Inductance Tolerance (10%)
External Dimensions (mm)
| Part No | A (Max) | B (Min) | C (0.5) | D (Max) | E (0.1) | F | H |
| SPK0406 | 8.0 | 15.0 | 2.0 | 5.0 | 0.55 | 0.85 | 2.0 |
| SPK0608 | 11.0 | 15.0 | 2.5 | 7.0 | 0.65 | 0.95 | 2.5 |
| SPK0707 | 9.5 | 15.0 | 5.0 (1.0) | 8.0 | 0.65 | 0.95 | 5.0 |
| SPK0807 | 9.5 | 15.0 | 5.0 (1.0) | 9.0 | 0.65 | 0.95 | 5.0 |
| SPK0810 | 13.0 | 15.0 | 5.0 (1.0) | 9.0 | 0.65 | 0.95 | 5.0 |
| SPK0912 | 15.0 | 15.0 | 5.0 (1.0) | 10.0 | 0.80 | 1.1 | 5.0 |
| SPK1010 | 13.0 | 15.0 | 5.0 (1.0) | 12.0 | 0.80 | 1.1 | 5.0 |
| SPK1012 | 15.0 | 15.0 | 6.0 (1.0) | 12.0 | 0.80 | 1.1 | 6.0 |
| SPK1016 | 19.0 | 15.0 | 6.0 (1.0) | 12.0 | 0.80 | 1.1 | 6.0 |
| SPK1018 | 21.0 | 15.0 | 6.0 (1.0) | 12.0 | 0.80 | 1.1 | 6.0 |
| SPK1213 | 16.0 | 15.0 | 7.5 (1.0) | 14.0 | 0.80 | 1.1 | 7.5 |
Inductance Tolerance
- J: 5%
- K: 10%
- L: 15%
- M: 20%
- P: 25%
- N: 30%
Environmental Data
- Operating Temperature: -40 to +125 (Including coils self-temperature rise)
Test Equipment
- Inductance (L): HP4284A, HP4285A LCR meter or equivalent
- Saturation & RMS Current (Isat & 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
Applications
- TVs and Audio equipment
- Telecommunication devices
- Noise filters
- Chargers, fast charge
- DC/DC converters
Electrical Characteristics (Example: 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 (20%) | 100 | 7.96 | 0.035 | 2000 |
| SPK0406-1R2M- | 1.2 | M (20%) | 100 | 7.96 | 0.058 | 1950 |
| SPK0406-100M- | 10 | M (20%) | 80 | 2.52 | 0.230 | 1000 |
| SPK0406-101K- | 100 | K (10%) | 45 | 0.796 | 1.000 | 400 |
| SPK0406-103K- | 10000 | K (10%) | 45 | 0.0796 | 72.000 | 47 |
Electrical Characteristics (Example: 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%) | 20 | 7.96 | 0.016 | 3500 |
| SPK0608-100M- | 10 | M (20%) | 30 | 2.52 | 0.039 | 2000 |
| SPK0608-101K- | 100 | K (10%) | 20 | 0.796 | 0.350 | 650 |
| SPK0608-102K- | 1000 | K (10%) | 100 | 0.252 | 2.1 | 200 |
| SPK0608-103K- | 10000 | K (10%) | 70 | 0.0796 | 29.500 | 65 |
Electrical Characteristics (Example: 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 (20%) | 10 | 7.96 | 0.006 | 5000 | 5000 |
| SPK0707-100M- | 10 | M (20%) | 20 | 2.52 | 0.043 | 1900 | 1900 |
| SPK0707-101K- | 100 | K (10%) | 20 | 7.96 | 0.330 | 670 | 670 |
| SPK0707-102K- | 1000 | K (10%) | 70 | 2.52 | 4.300 | 190 | 190 |
Electrical Characteristics (Example: 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 (20%) | 10 | 7.96 | 0.011 | 4000 | 4000 |
| SPK0807-100M- | 10 | M (20%) | 20 | 2.52 | 0.031 | 2200 | 2200 |
| SPK0807-101K- | 100 | K (10%) | 15 | 0.796 | 0.230 | 750 | 750 |
| SPK0807-102K- | 1000 | K (10%) | 20 | 0.252 | 2.200 | 230 | 230 |
Electrical Characteristics (Example: 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 (20%) | 30 | 7.96 | 0.012 | 5000 |
| SPK0810-100M- | 10 | M (20%) | 50 | 2.52 | 0.025 | 3200 |
| SPK0810-101K- | 100 | K (10%) | 30 | 0.796 | 0.200 | 900 |
| SPK0810-102K- | 1000 | K (10%) | 40 | 0.252 | 1.800 | 280 |
| SPK0810-103K- | 10000 | K (10%) | 20 | 0.0796 | 24.000 | 90 |
Electrical Characteristics (Example: SPK0912 Series)
| Part No | Inductance L (H) | Tolerance | DCR Max () | Rated Current Max (mA) |
| SPK0912-1R0M- | 1.0 | M (20%) | 0.011 | 6000 |
| SPK0912-100M- | 10 | M (20%) | 0.040 | 4000 |
| SPK0912-101K- | 100 | K (10%) | 0.250 | 1500 |
| SPK0912-102K- | 1000 | K (10%) | 2.000 | 200 |
| SPK0912-103K- | 10000 | K (10%) | 16.00 | 90 |
Electrical Characteristics (Example: 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 (20%) | 10 | 7.96 | 0.010 | 5900 | 5900 |
| SPK1010-100M- | 10 | M (20%) | 20 | 2.52 | 0.025 | 3700 | 3700 |
| SPK1010-101K- | 100 | K (10%) | 20 | 0.796 | 0.160 | 1400 | 1400 |
| SPK1010-102K- | 1000 | K (10%) | 20 | 0.252 | 1.400 | 500 | 500 |
| SPK1010-103K- | 10000 | K (10%) | 30 | 0.0796 | 0.38 | 170 | 140 |
Electrical Characteristics (Example: SPK1012 Series)
| Part No | Inductance L (H) | Tolerance | DCR Max () | Saturation Current Max (mA) | Temperature Rise Current Max (mA) |
| SPK1012-100M- | 10 | M (20%) | 0.023 | 4200 | 4200 |
| SPK1012-101K- | 100 | K (10%) | 0.097 | 2500 | 2500 |
| SPK1012-102K- | 1000 | K (10%) | 1.000 | 780 | 780 |
| SPK1012-103K- | 10000 | K (10%) | 0.35 | 180 | 170 |
Electrical Characteristics (Example: SPK1016 Series)
| Part No | Inductance L (H) | Tolerance | DCR Max () | Saturation Current Max (mA) | Temperature Rise Current Max (mA) |
| SPK1016-100M- | 10 | M (20%) | 0.035 | 5000 | 5000 |
| SPK1016-101K- | 100 | K (10%) | 0.180 | 2000 | 2000 |
| SPK1016-102K- | 1000 | K (10%) | 1.200 | 700 | 700 |
| SPK1016-103K- | 10000 | K (10%) | 10.00 | 180 | 180 |
Electrical Characteristics (Example: SPK1018 Series)
| Part No | Inductance L (H) | Tolerance | DCR Max () | Saturation Current Max (mA) | Temperature Rise Current Max (mA) |
| SPK1018-100K- | 10 | K (10%) | 0.017 | 4500 | 4500 |
| SPK1018-101K- | 100 | K (10%) | 0.090 | 2000 | 2000 |
| SPK1018-102K- | 1000 | K (10%) | 0.844 | 660 | 660 |
| SPK1018-103K- | 10000 | K (10%) | 7.3000 | 220 | 220 |
Electrical Characteristics (Example: SPK1213 Series)
| Part No | Inductance L (H) | Tolerance | DCR Max () | Saturation Current Max (mA) | Temperature Rise Current Max (mA) |
| SPK1213-100M- | 10 | M (20%) | 0.023 | 5100 | 5100 |
| SPK1213-101K- | 100 | K (10%) | 0.097 | 2500 | 2500 |
| SPK1213-102K- | 1000 | K (10%) | 1.000 | 780 | 780 |
| SPK1213-103K- | 10000 | K (10%) | 10.000 | 240 | 240 |
Product Packaging
| Part No. | PE Bag Quantity |
| SPK0406 | 1000PCS |
| SPK0608 | 1000PCS |
| SPK0707 | 1000PCS |
| SPK0807 | 1000PCS |
| SPK0810 | 500PCS |
| SPK0912 | 300PCS |
| SPK1010 | 200PCS |
| SPK1012 | 200PCS |
| SPK1016 | 200PCS |
| SPK1018 | 200PCS |
| SPK1213 | 200PCS |
Reminders for Using These Products
- Storage Period: Within 12 months. Conditions: temperature 5~40C, humidity 35~65% RH or less.
- Environment: Do not use or store in environments with gas corrosion (salt, acid, alkali, etc.).
- Handling: Avoid touching electrodes directly with bare hands due to oil secretions. Handle products carefully to prevent damage from dropping or improper removal.
- Terminal Bending: Do not bend terminals with excessive stress to avoid wire fracture.
- Cleaning: Do not rinse coils. Contact the manufacturer if cleaning is necessary.
- Magnetic Fields: Do not expose products to magnets or magnetic fields.
- Soldering: Preheat components before soldering. The temperature difference between solder and chip temperature should not exceed 150C. Soldering corrections after mounting should be within specified conditions to avoid overheating.
- Thermal Design: Self-heating occurs when power is on; ensure sufficient thermal design margin.
- Layout: For non-magnetic shield types, careful PCB layout is required to prevent malfunctions due to magnetic interference.
