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Reliable Unshielded 335 SMD Power Inductor Stable 3.3mH Drum Core Choke Coil
Place of Origin:
China,Guangdong
Brand Name:
Chipsen
Certification:
ISO9001:2015, IATF16949:2016, U/L, ROHS, CQC, CE, cUL
Model Number:
335
Minimum Order Quantity:
1000pcs
Price:
＄1.25-1.52/pieces,1000-10000pcs
Packaging Details:
Carrier tape & reel + export cartons; palletized for bulk orders. Optimized for SMT. Custom available.
Delivery Time:
7-21work days (Negotiable)
Payment Terms:
T/T
Supply Ability:
10000pcs
Inquiry Now
Get A Quote
Specifications
Highlight Features
Unshielded 335 SMD power inductor
,3.3mH drum core choke coil
,Stable SMD inductor with warranty
Inductance Range:
3.3mH
Shape Type:
SMD Unshielded Type
Components:
Ferrite Core, Copper Wire
Frequency Range:
100KHz - 200KHz High Frequency
Warranty:
5 Years
Wire:
Copper Wire
Product Name:
Smd Power Inductor, Unshielded Inductor
Highlight:
High Current & Low DCR Efficiency Compact Space-Saving SMD Design Superior Thermal & Operational Stability
Product Description
Reliable Unshielded 335 SMD Power Inductor Stable 3.3mH Drum Core Choke Coil
High Performance 335 Series SMD Unshielded Power Inductor
Product Introduction & Key Features
The 335 Series SMD Power Inductor provides an inductance value of 3.3μH in a compact electromagnetic component built for modern power management and signal processing systems. This unshielded, open-type drum core structure maximizes magnetic flux linkage while balancing cost and electrical performance.
- High Inductance Precision: Rated 3.3μH, optimized for low-frequency filtering and energy transfer
- Stable Saturation Performance: Ferrite core maintains inductance during current surges
- Cost-Effective Unshielded Drum Core: Open-frame structure improves energy density
- Good Thermal & Current Performance: Thick copper wire reduces DCR and heat generation
- Reliable Solderability: Lead-free oversized tinned electrodes for strong PCB bonding
- Wide Frequency Compatibility: Tuned for 100kHz~200kHz switching frequency
- Eco-Friendly Construction: Fully RoHS and REACH compliant
Technical Specifications
| Parameter Name | Detailed Value / Specification |
|---|---|
| Marking Code | 335 (Industry Standard: 3.3μH) |
| Nominal Inductance (L) | 3.3 μH ± 20% (@ 1kHz / 1V) |
| DC Resistance (DCR Max) | 1,200 mΩ - 4,500 mΩ (Depending on Footprint) |
| Saturation Current (Isat) | 50mA - 450mA (Based on 10% - 30% L-drop) |
| Heating Current (Irms) | 40mA - 400mA (Based on 40°C Temp Rise) |
| Self-Resonant Frequency (SRF) | 0.8 MHz - 2.5 MHz (Typical Values) |
| Core Material | High-Q Low-Loss Nickel-Zinc (Ni-Zn) Ferrite |
| Operating Temperature | -40°C to +125°C (Ambient + Self-Heating) |
| Insulation Resistance | >100MΩ (@ 100V DC) |
| Dielectric Strength | 250V AC / 60s (Between Core and Winding) |
| Terminals / Electrodes | Sn / Ag / Cu (Lead-Free Solderability) |
| Standard Footprint Sizes | 5x4mm / 7x5mm / 10x10mm (Available Sizes) |
Advanced Features & Manufacturing Excellence
Ni-Zn Ferrite Core: Features stable magnetic performance and high resistivity, maintaining consistent performance under high humidity and temperature conditions.
CNC Precision Winding Technology: Multi-axis automatic winding machines with real-time wire tension monitoring for neat, tightly packed copper coils.
Robust SMD Drum Core Design: Drum core flanges serve as electrode base, eliminating separate plastic base and improving thermal transfer.
Multi-Stage Vacuum Impregnation: Air inside windings replaced by insulating resin to eliminate buzzing noise and protect from moisture and corrosion.
Applications
- Telecommunications & Networking: DC power line filtering for RRU and fiber communication equipment
- Industrial Automation & Control: PLC, sensor interfaces and stepper motor drivers
- LED Lighting & Smart Building: High-voltage LED drivers for industrial lighting and IoT devices
- Medical & Test Equipment: Power filtering for monitors, portable ultrasound and lab analyzers
Company Overview
Chipsen Electronics is a professional manufacturer specializing in high-performance transformers and magnetic components, with over 26 years of manufacturing expertise. Founded in 2000, we operate 4 production bases covering over 7,200 square meters with 400+ skilled employees.
Quality Commitment
- Certifications: ISO9001, ISO14001, IATF16949, UL Class B/F/H, CQC, RoHS, REACH
- 36+ utility patents supported by robust in-house R&D team
- Full-range standard models with flexible custom development services
- Advanced automated manufacturing with 100% testing procedures
- Specialized in 5KV to 40KV high voltage transformers and high-frequency power solutions
Frequently Asked Questions
How long does it take to prepare samples?
3-5 days for new samples, 1 day for samples in stock.
How are samples shipped?
When customers cover freight costs, we help choose the most economical shipping method.
Do you provide technical support for customized products?
Yes, our strong R&D team provides free technical support for customizations in voltage, power, inductance, dimensions, core materials, and more.
Do you accept flexible minimum order quantities?
We support flexible MOQ based on your industry and product requirements. Please share your application areas and estimated annual usage.
Can you ensure proper packaging for large sea shipments?
Yes, we provide goods packed in strong export cartons, on wooden pallets, and shrink-wrapped for protection.
Product Images
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