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 applications. These inductors offer a cost-effective solution with high power handling, high saturation, and low resistance. Featuring an unshielded construction and core encapsulation for mechanical and environmental protection, they are available in various package sizes and inductance ranges. The series is compliant with RoHS, Halogen Free, and REACH standards, making them suitable for a wide array of electronic devices including TVs, audio equipment, telecommunication devices, chargers, fast charge circuits, and DC/DC converters.

Product Attributes

• Brand: LT-
• Manufacturer: SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD.
• Series: SPK Series
• Type: Unshielded DIP Power Inductor, Spike suppression coil
• Certifications: RoHS, Halogen Free, REACH Compliance
• Packaging Options: Tape packaging for auto-insertion, Bulk Package

Technical Specifications

General Specifications

External Dimensions (mm)

Electrical Characteristics (Selected Series)

Note: Full specifications available in the original document. The following are examples.

SPK0406 Series Electrical Characteristics (at 25)

SPK0608 Series Electrical Characteristics (at 25)

SPK0707 Series Electrical Characteristics (at 25)

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

Product Identification

The product model number follows the format: SPK [Size] [Inductance Value] [Tolerance Code] [Packaging Code]

• SPK: Series Type
• Size: e.g., 0608 (Dimensions in mm)
• Inductance Value: e.g., 503 = 50 mH
• Tolerance Code: e.g., K = 10%
• Packaging Code: e.g., B = Bulk, TF = Tape

Packaging Details

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 gas environments (salt, acid, alkali, etc.).
• Do not touch electrodes directly with bare hands to prevent soldering inhibition.
• Handle carefully to prevent damage from dropping or improper removal.
• Do not bend terminals excessively to avoid wire fracture.
• Do not rinse coils; contact the 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 performance degradation or reduced lifespan.
• 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.