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Specifications
Current Rating:
3A
Wire Diameter:
0.95mm
Inductance:
4.7uH
Tolerance:
±20%
DC Resistance(DCR):
20mΩ
Type:
Drum-core Inductor
Mfr. Part #:
SPK0608-4R7MB
Package:
Through Hole,D7xL11mm
Key Attributes
Model Number:
SPK0608-4R7MB
Product Description
Product Overview
The SPK Series from SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD. are unshielded DIP power inductors designed for spike suppression. These inductors offer a low-cost solution with high power, high saturation, and low resistance characteristics. They are encapsulated in UL heat shrink tubing for excellent mechanical and environmental protection, making them suitable for a wide range of applications including TVs, audio equipment, telecommunication devices, noise filters, chargers, fast charge circuits, and DC/DC converters. Available in various package sizes and inductance ranges, they are also offered in tape packaging for automated insertion and comply with RoHS, Halogen Free, and REACH standards.
Product Attributes
- Brand: LT- (Implied from logo)
- Manufacturer: SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD.
- Product Series: SPK Series
- Type: Unshielded DIP Power Inductors, Spike suppression coil
- Certifications: RoHS, Halogen Free, REACH Compliance
- Packaging Options: Tape packaging for auto-insertion, Bulk Package (B), Tape (TF)
Technical Specifications
General Specifications
| Feature | Description |
|---|---|
| Low Cost | Yes |
| Power Handling | High power |
| Saturation | High saturation |
| Resistance | Low resistance |
| Shielding | Unshielded |
| Core Protection | Encapsulated by UL heat shrink tube |
| Package Sizes | Various |
| Inductance Range | Wide |
| Operating Temperature | -40 to +125 (including coil self-temperature rise) |
Test Equipment
| Parameter | 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 |
Product Identification
| Code | Description |
|---|---|
| SPK | Type (Radial Leaded Fixed Inductors) |
| 0608, 0707, etc. | External Dimensions (LWH) in mm |
| 503 | Inductance (e.g., 50 mH) |
| K | Inductance Tolerance (e.g., 10%) |
| B | Packaging (Bulk) |
Inductance Tolerance Codes
| Code | Tolerance |
|---|---|
| J | 5% |
| K | 10% |
| L | 15% |
| M | 20% |
| P | 25% |
| N | 30% |
Shape and Dimensions (mm)
| Part No | A (Max) | B (Min) | C () | D (Max) | E () | 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 | 8.0 | 0.65 | 0.95 | 5.0 |
| SPK0807 | 9.5 | 15.0 | 5.0 | 9.0 | 0.65 | 0.95 | 5.0 |
| SPK0810 | 13.0 | 15.0 | 5.0 | 9.0 | 0.65 | 0.95 | 5.0 |
| SPK0912 | 15.0 | 15.0 | 5.0 | 10.0 | 0.80 | 1.1 | 5.0 |
| SPK1010 | 13.0 | 15.0 | 5.0 | 12.0 | 0.80 | 1.1 | 5.0 |
| SPK1012 | 15.0 | 15.0 | 6.0 | 12.0 | 0.80 | 1.1 | 6.0 |
| SPK1016 | 19.0 | 15.0 | 6.0 | 12.0 | 0.80 | 1.1 | 6.0 |
| SPK1018 | 21.0 | 15.0 | 6.0 | 12.0 | 0.80 | 1.1 | 6.0 |
| SPK1213 | 16.0 | 15.0 | 7.5 | 14.0 | 0.80 | 1.1 | 7.5 |
Electrical Characteristics (Sample: SPK0406 Series)
| Part No | Inductance L(H) | Tole | Q Min | SRF Min (MHz) | DCR Max () | Rated Current Max (mA) |
|---|---|---|---|---|---|---|
| SPK0406-1R0M- | 1.0 | M | 100 @1KHz | 7.96 | 0.035 | 2000 |
| SPK0406-1R2M- | 1.2 | M | 100 @1KHz | 7.96 | 0.058 | 1950 |
| SPK0406-100M- | 10 | M | 80 @1KHz | 2.52 | 0.230 | 1000 |
| SPK0406-101K- | 100 | K | 45 @1KHz | 0.796 | 1.000 | 400 |
| SPK0406-103K- | 10000 | K | 45 @1KHz | 0.0796 | 72.000 | 47 |
Electrical Characteristics (Sample: SPK0608 Series)
| Part No | Inductance L(H) | Tole | Q Min | SRF Min (MHz) | DCR Max () | Rated Current Max (mA) |
|---|---|---|---|---|---|---|
| SPK0608-3R3M- | 3.3 | M | 20 @1KHz | 7.96 | 0.016 | 3500 |
| SPK0608-100M- | 10 | M | 30 @1KHz | 2.52 | 0.039 | 2000 |
| SPK0608-101K- | 100 | K | 20 @1KHz | 0.796 | 0.350 | 650 |
| SPK0608-102K- | 1000 | K | 100 @1KHz | 0.252 | 2.1 | 200 |
| SPK0608-103K- | 10000 | K | 70 @1KHz | 0.0796 | 29.500 | 65 |
Electrical Characteristics (Sample: SPK0707 Series)
| Part No | Inductance L(H) | Tole | Q Min | SRF Min (MHz) | DCR Max () | Saturation Current Max (mA) | Temperature Rise Current Max (mA) |
|---|---|---|---|---|---|---|---|
| SPK0707-1R0M- | 1.0 | M | 10 @1KHz | 7.96 | 0.006 | 6600 | 5000 |
| SPK0707-100M- | 10 | M | 20 @1KHz | 2.52 | 0.043 | 2100 | 1900 |
| SPK0707-101K- | 100 | K | 20 @1KHz | 7.96 | 0.330 | 600 | 670 |
| SPK0707-102K- | 1000 | K | 70 @1KHz | 2.52 | 4.300 | 200 | 190 |
Electrical Characteristics (Sample: SPK0807 Series)
| Part No | Inductance L(H) | Tole | Q Min | SRF Min (MHz) | DCR Max () | Saturation Current Max (mA) | Temperature Rise Current Max (mA) |
|---|---|---|---|---|---|---|---|
| SPK0807-2R2M- | 2.2 | M | 10 @1KHz | 7.96 | 0.011 | 5500 | 4000 |
| SPK0807-100M- | 10 | M | 20 @1KHz | 2.52 | 0.031 | 2500 | 2200 |
| SPK0807-101K- | 100 | K | 15 @1KHz | 0.796 | 0.230 | 810 | 750 |
| SPK0807-102K- | 1000 | K | 20 @1KHz | 0.252 | 1.5 | 260 | 230 |
Electrical Characteristics (Sample: SPK0810 Series)
| Part No | Inductance L(H) | Tole | Q Min | SRF Min (MHz) | DCR Max () | Rated Current Max (mA) |
|---|---|---|---|---|---|---|
| SPK0810-3R3M- | 3.3 | M | 30 @1KHz | 7.96 | 0.012 | 5000 |
| SPK0810-100M- | 10 | M | 50 @1KHz | 2.52 | 0.025 | 3200 |
| SPK0810-101K- | 100 | K | 30 @1KHz | 0.796 | 0.200 | 900 |
| SPK0810-102K- | 1000 | K | 40 @1KHz | 0.252 | 1.5 | 280 |
| SPK0810-103K- | 10000 | K | 20 @1KHz | 0.0796 | 0.42 | 90 |
Electrical Characteristics (Sample: SPK0912 Series)
| Part No | Inductance L(H) | Tole | DCR Max () | Rated Current Max (mA) |
|---|---|---|---|---|
| SPK0912-1R0M- | 1.0 | M | 0.011 | 6000 |
| SPK0912-100M - | 10 | M | 0.040 | 4000 |
| SPK0912-101K- | 100 | K | 0.250 | 1500 |
| SPK0912-102K- | 1000 | K | 2.000 | 200 |
| SPK0912-103K- | 10000 | K | 16.00 | 90 |
Electrical Characteristics (Sample: SPK1010 Series)
| Part No | Inductance L(H) | Tole | Q Min | SRF Min (MHz) | DCR Max () | Saturation Current Max (mA) | Temperature Rise Current Max (mA) |
|---|---|---|---|---|---|---|---|
| SPK1010-3R3M- | 3.3 | M | 10 @1KHz | 7.96 | 0.010 | 8800 | 5900 |
| SPK1010-100M- | 10 | M | 20 @1KHz | 2.52 | 0.025 | 5000 | 3700 |
| SPK1010-101K- | 100 | K | 20 @1KHz | 796 | 0.160 | 1600 | 1400 |
| SPK1010-102K- | 1000 | K | 20 @1KHz | 252 | 1.1 | 510 | 500 |
| SPK1010-103K- | 10000 | K | 30 @1KHz | 79.6 | 0.38 | 170 | 140 |
Electrical Characteristics (Sample: SPK1012 Series)
| Part No | Inductance L(H) | Tole | DCR Max () | Saturation Current Max (mA) | Temperature Rise Current Max (mA) |
|---|---|---|---|---|---|
| SPK1012-3R3M- | 3.3 | M | 0.025 | 5500 | 5500 |
| SPK1012-100M- | 10 | M | 0.050 | 4200 | 4200 |
| SPK1012-101K - | 100 | K | 0.180 | 1500 | 1500 |
| SPK1012-102K - | 1000 | K | 1.400 | 300 | 300 |
| SPK1012-103K- | 10000 | K | 12.000 | 180 | 170 |
Electrical Characteristics (Sample: SPK1016 Series)
| Part No | Inductance L(H) | Tole | 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 |
| SPK1016-101K- | 100 | K | 0.180 | 2500 | 2000 |
| SPK1016-102K- | 1000 | K | 1.200 | 700 | 700 |
| SPK1016-103K- | 10000 | K | 10.00 | 180 | 180 |
Electrical Characteristics (Sample: SPK1018 Series)
| Part No | Inductance L(H) | Tole | 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 |
| SPK1018-101K- | 100 | K | 0.090 | 2200 | 2000 |
| SPK1018-102K- | 1000 | K | 0.844 | 660 | 660 |
| SPK1018-103K- | 10000 | K | 7.3000 | 220 | 220 |
Electrical Characteristics (Sample: SPK1213 Series)
| Part No | Inductance L(H) | Tole | DCR Max () | Saturation Current Max (mA) | Temperature Rise Current Max (mA) |
|---|---|---|---|---|---|
| SPK1213-100M- | 10 | M | 0.023 | 8000 | 5100 |
| SPK1213-101K- | 100 | K | 0.097 | 2600 | 2500 |
| SPK1213-102K- | 1000 | K | 1.000 | 780 | 780 |
| SPK1213-103K- | 10000 | K | 10.000 | 240 | 240 |
Current Definitions
| Term | Definition |
|---|---|
| Saturation Current (Isat) | DC current at which inductance drops 10% from its value without current. |
| Temperature Rise Current (Irms) | The actual value of DC current when the temperature rise is T 40 (Ta=25). |
| Rated DC Current | The lesser of Isat or Irms. |
Packaging Information
| Part No. | PCS per Bag |
|---|---|
| SPK0406 | 1000 |
| SPK0608 | 1000 |
| SPK0707 | 1000 |
| SPK0807 | 1000 |
| SPK0810 | 500 |
| SPK0912 | 300 |
| SPK1010 | 200 |
| SPK1012 | 200 |
| SPK1016 | 200 |
| SPK1018 | 200 |
| SPK1213 | 200 |
Reliability Testing Summary
| Test Item | Requirements | Test Method Reference |
|---|---|---|
| Terminal Strength | No loose terminal after force application. | GB/T 2423.60-2008 |
| Resistance to Flexure | No visible mechanical damage. | JIS C 5321:1997 |
| Dropping | No case deformation, appearance change, short, or open. | GB/T 2423.7-2018 |
| Solderability | Terminals must have 95% minimum solder coverage. | GB/T 2423.28-2005 |
| Vibration | Inductance change: Within 10%; Q factor change: Within 20%. | GB/T 2423.10-2019 |
| Thermal Shock | Inductance change: Within 10%; Q factor change: Within 20%. | GB/T 2423.22-2012 Method Na |
| Low temperature Storage | Inductance change: Within 10%; Q factor change: Within 20%. | GB/T 2423.1-2008 Method Ab |
| High temperature Storage | Inductance change: Within 10%; Q factor change: Within 20%. | GB/T 2423.2-2008 Method Bb |
| Damp Heat (Steady States) | Inductance change: Within 10%; Q factor change: Within 20%. | GB/T 2423.3-2016 |
| Heat endurance of Reflow soldering | L/L10%; Q/Q30%; DCR/DCR10%. | GJB 360B-2009 |
| Resistance to solvent test | No case deformation or change in appearance or obliteration of marking. | IEC 68-2-45:1993 |
| Overload test | No smoke, peculiar smell, or fire during test. | JIS C5311-6.13 |
| Voltage resistance test | No breakdown during test. | MIL-STD-202G Method 301 |
Soldering Recommendations
Lead-free Wave Soldering (DIP-TYP) Recommended Curve:
Note: The recommended reflow conditions are based on the manufacturer's soldering equipment. Users should adjust and confirm conditions based on their specific environment and equipment.
Reminders for Using These Products
- Storage Period: Within 12 months. Conditions: Temperature 5~40C, Humidity 35~65% RH or less.
- Avoid use and storage in corrosive environments (salt, acid, alkali, etc.).
- Avoid touching electrodes directly with bare hands due to oil secretions affecting soldering.
- 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; 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 overheating.
- Allow sufficient thermal design margin for self-heating when power is on.
- For non-magnetic shield types, careful PCB layout is required to prevent malfunctions due to magnetic interference.
2410121731_LanTu-Micro-SPK0608-4R7MB_C5127516.pdf
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