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10uH 22uH 47uH Toroidal Differential Mode Inductor Choke Coil For DC-DC Converter
Place of Origin:
China
Brand Name:
Chipsen
Certification:
UL/CUL/ISO9001/ISO14001/RoHS/Reach/IATF16949
Model Number:
T8
Minimum Order Quantity:
1000
Price:
US$0.05-1.5
Packaging Details:
Carton 1: 25.5 X 21.5 X 21cm Carton 2: 43.5 x 24.5 x 21 cm
Delivery Time:
3-4 Weeks
Payment Terms:
T/T
Supply Ability:
10000000/Month
Inquiry Now
Get A Quote
Specifications
Highlight Features
10uH differential mode inductor
,22uH differential mode inductor
,47uH differential choke
Model Number:
T8-Series / DM-T8
Usage:
Ripple Filtering / Energy Storage
Winding:
100% Pure Copper Wire
Inductance:
1uH - 100uH (Customizable)
Core Material:
Iron Powder / Carbonyl Iron
Rated Current:
0.5A / 1A / 2A / 3A (Customizable)
Core Type:
Toroidal / Ring-type
Certification:
RoHS, REACH, UL Recognized
Product Description
Miniature T8 Toroidal Differential Mode Inductor Iron Powder Core Choke Coil for DC-DC Converter and Handheld Devices
T8 Miniature Toroidal Inductor: Precision Ripple Filtering in an Ultra-Compact Profile
Product Introduction
The T8 Differential Mode Toroidal Inductor is a miniature magnetic component specifically engineered for noise suppression and energy storage in low-voltage DC circuits. Utilizing a standardized T8 toroidal core (approximately 8mm outer diameter), this series is designed to handle high DC bias currents while occupying minimal PCB real estate. It acts as a highly effective barrier against switching ripples and differential-mode noise, providing a clean and stable power foundation for sensitive mobile and wearable electronics.
| Parameter | Typical Value / Spec |
|---|---|
| Core Type | T8 (Miniature Toroidal) |
| Dimensions | Approx. OD 8.0mm x ID 4.0mm x H 3.2mm |
| Mounting Type | Through-hole PCB Mount (Pin-type) |
| Coil Structure | Toroidal / Ring-type |
| Inductance Range | 1.0 uH - 100.0 uH (Customizable) |
| Inductance Tolerance | +/- 20% (Typical) |
| Rated Current (Idc) | 0.5 A - 3.0 A (Max) |
| Max DCR (Resistance) | 5 mOhm - 150 mOhm (Depends on L) |
| Test Frequency | 10 KHz / 100 KHz / 0.1V |
| Core Material | Iron Powder (-26 / -52 Material) / Sendust |
| Saturation Type | Soft Saturation (Distributed Air Gap) |
| Winding Wire | High-Temp Enameled Copper Wire (2UEW/3UEW) |
| Insulation Class | Class B (130°C) / Class F (155°C) |
| Operating Temp | -40°C to +125°C (Incl. Temp Rise) |
| Storage Temp | -25°C to +85°C |
| Compliance | RoHS, REACH, ISO9001 |
Product Features
- High-Saturation Core Material: Constructed with premium Iron Powder or Sendust cores, providing a distributed air gap that ensures high saturation flux density even under heavy DC loads.
- Precision Toroidal Winding: The ring-shaped winding technique provides a naturally closed magnetic circuit, which drastically reduces electromagnetic interference (EMI) compared to open-frame drum inductors.
- Low DC Resistance (DCR): Utilizing high-purity enameled copper wire to maximize conductivity and minimize power loss, essential for high-efficiency battery-powered devices.
- Robust Thermal Performance: Capable of stable operation in environments ranging from -40°C to +125°C, making it suitable for automotive sensors and industrial IoT modules.
Technical FAQ 1: Why is Iron Powder core material specifically chosen for T8 Differential Mode chokes instead of high-permeability Ferrite?
Answer: Differential-mode inductors must handle a continuous DC current that can drive standard Ferrite cores into "hard saturation," causing a sudden drop in inductance and potentially damaging the circuit. The Iron Powder used in the T8 series features a "Soft Saturation" characteristic. This material has a distributed air gap within the core structure, allowing it to maintain a significant portion of its inductance at high peak currents. This provides a critical safety margin for buck/boost converters and prevents output ripple from spiking during transient load conditions.
Product Applications
- DC-DC Converters: The primary ripple filter for high-frequency buck, boost, and SEPIC converters in handheld electronics.
- IoT & Wearable Devices: Ideal for smartwatches, fitness trackers, and wireless sensors requiring ultra-small footprints.
- Handheld Medical Instruments: Provides isolated and stable power filtering for portable diagnostic tools and monitoring equipment.
- Automotive Sensors: Reliable EMI suppression for advanced driver-assistance systems (ADAS) and cabin electronics.
Technical FAQ 2: What impact does the T8's small physical size have on its Self-Resonant Frequency (SRF) and high-frequency performance?
Answer: In high-speed switching circuits, the Self-Resonant Frequency (SRF) is a vital metric. Because the T8 is physically small, the length of the copper winding is shorter, which results in lower Parasitic Capacitance. This shifts the SRF to a much higher frequency range compared to larger inductors. For the design engineer, this means the T8 inductor maintains its inductive property and filtering efficacy at higher frequencies (up to several MHz), making it far more effective at suppressing the sharp switching transients of modern GaN and SiC power stages.
Product Advantages
- Extreme Space Efficiency: The T8 geometry offers one of the smallest footprints for a toroidal inductor, allowing for extreme component density on 4-layer or multi-layer PCBs.
- Superior EMI Containment: The closed-loop magnetic path contains nearly all flux within the core, preventing the inductor from becoming a source of cross-talk to adjacent sensitive analog traces.
- Excellent Cost-to-Performance Ratio: As a mature and standardized size, the T8 benefits from high manufacturing throughput, providing a high-reliability filtering solution at a competitive price point.
- High Consistency: Automated winding and testing processes ensure that electrical parameters like inductance and DCR are identical across every production batch, reducing the need for circuit recalibration in mass-produced systems.
Company Strengths
Chipsen Electronics Technology Co., Ltd., established in 2000, is a specialized manufacturer of high frequency transformer, low frequency transformer, toroidal inductor, SMD power inductor, super high current inductor, choke coil and switch. Chipsen has earned a strong reputation in domestic and overseas markets including North & South America, Europe and Southeast Asia.
As an ISO9001, ISO14001 & IATF16949 audited company, Chipsen possesses a professional management team committed to producing environmentally friendly and qualified products. Our products are certified by UL Class B/Class F/Class H, CQC and RoHS, and we hold 21 patents.
These achievements stem from our strong R&D team, which provides various solutions for temperature reduction, noise cancellation, and coupled radiation conductivity. Our products are widely used in various fields including new energy, PV, UPS, Robotics, smart home, security systems, health care and communication.
Vision: To Be Global Transformer Brand Supplier
Mission: Create Values for Customers and Society, Grow with Customers and Staff
Values: Customer First, Team Cooperation, Embrace Changes, Integrity, Creative & Happy
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