Unshielded DIP Power Inductors - SPK Series

Product Overview
The SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD. SPK Series Unshielded DIP Power Inductors are designed for spike suppression and general power applications. These inductors offer low cost, high power handling, high saturation, and low resistance. Their core is encapsulated in a UL heat shrink tube for excellent mechanical and environmental protection. Available in various package sizes and a wide inductance range, they are suitable for automated insertion processes. The SPK series complies with RoHS, Halogen Free, and REACH standards.

Key Features & Applications

• Low cost
• High power, high saturation, low resistance
• Unshielded power inductor
• Core encapsulated by UL heat shrink tube for excellent mechanical and environmental protection
• Various package sizes and wide inductance range
• Tape packaging available for auto-insertion
• RoHS, Halogen Free, and REACH Compliance
• Applications: TVs and Audio equipment, Telecommunication devices, Noise filters, Chargers, fast charge, DC/DC converters.

Product Attributes

• Brand: LT-
• Manufacturer: SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD.
• Series: SPK
• Type: Unshielded DIP Power Inductors, Spike suppression coil
• Certifications: RoHS, Halogen Free, REACH Compliance
• Packaging: Bulk Package (B), Tape packaging (TF)

Technical Specifications

Environmental Data:

• Operating Temperature: -40 to +125 (Including coil self-temperature rise)

Test Equipment:

• Inductance (L): HP4284A, HP4285A LCR meter or equivalent
• Saturation (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:

• Format: SPK [Size] [Inductance Value] [Tolerance] [Packaging]
• Example: SPK 0608 503 K B
• Inductance: e.g., 50 mH
• External Dimensions (LWH): e.g., 0608 (mm)
• Type: SPK (Radial Leaded Fixed Inductors)
• Tolerance: J: 5%, K: 10%, L: 15%, M: 20%, P: 25%, N: 30%

Shape and Dimensions (mm):

Electrical Characteristics (Examples):

Current Definitions:

• 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 value of Isat or Irms.

Packaging:

Reminders for Using These Products:

• Storage Period: Within 12 months. Conditions: temperature 5~40C, humidity 35~65% RH or less.
• Avoid use or storage in environments with gas corrosion (salt, acid, alkali, etc.).
• Avoid touching electrodes directly with bare hands due to oil secretions that may inhibit 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, short circuits, performance deterioration, or lifespan shortening.
• Account for self-heating when power is on in thermal design.
• For non-magnetic shield types, careful PCB layout is needed to prevent malfunctions due to magnetic interference.