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UU9.8 Common Mode Power Line Choke Inductor Vertical Through Hole EMI Filter
UU9.8 Common Mode Power Line Choke Inductor Vertical Through Hole EMI Filter
UU9.8 Common Mode Power Line Choke Inductor Vertical Through Hole EMI Filter
UU9.8 Common Mode Power Line Choke Inductor Vertical Through Hole EMI Filter
UU9.8 Common Mode Power Line Choke Inductor Vertical Through Hole EMI Filter
UU9.8 Common Mode Power Line Choke Inductor Vertical Through Hole EMI Filter
UU9.8 Common Mode Power Line Choke Inductor Vertical Through Hole EMI Filter
UU9.8 Common Mode Power Line Choke Inductor Vertical Through Hole EMI Filter
Specifications
Certification :
UL Recognized Material, RoHS, REACH
Model Number :
UU9.8
Application :
SMPS, LED Driver, Inverter, UPS, Home Appliance
MOQ :
100pcs
Delivery Time :
3~4 Weeks
Inductance Range :
1mH ~ 60mH @10kHz/0.25V (Customizable)
Mounting Type :
Through Hole (Vertical / Horizontal)
Payment Terms :
T/T
Rated Current :
0.3A ~ 2.0A (Per Inductance Code)
Price :
US$0.1-0.5
Winding :
Dual winding, 100% copper
Supply Ability :
1,000,000pcs/month
Hi-Pot Test :
1500~3000VAC / 1 Minute (Wire to Wire)
Brand Name :
Chipsen
Product Type :
Common mode choke / EMI line filter inductor
Packaging Details :
Carton 1: 25.5 X 21.5 X 21cm. Carton 2: 43.5 x 24.5 x 21 cm
Sample Time :
7 Days (Drawing within 3 Days)
Place of Origin :
China
Core Material :
UU9.8 Mn-Zn Ferrite Core
Description
UU9.8 Common Mode Line Filter Choke Inductor Vertical Through Hole EMI Filter

The UU9.8 common mode line filter is a compact dual-winding choke built on a UU9.8 ferrite core, designed to suppress common mode EMI/RFI noise on AC or DC power lines while keeping differential (signal) current virtually unaffected. With a small PCB footprint, high common mode impedance and a UL recognized bobbin & insulation system, it is a proven noise-filtering solution for switching power supplies, LED drivers, inverters, UPS, chargers, home appliances and industrial control boards.
Every unit is wound and tested in our own factory. Full customization (OEM & ODM) is available: inductance, wire gauge, pin configuration, creepage distance, tape/varnish and marking can all be built to your drawing. Drawings within 3 days, samples within 7 days, MOQ only 100 pcs.

Key Features & Advantages
  • High common mode attenuation -- dual balanced windings on a high-permeability ferrite UU core deliver strong impedance against common mode noise across a wide frequency band, helping your product pass CE / FCC / EN 55032 conducted emission tests.
  • Low differential loss, low temperature rise -- 100% solid copper magnet wire keeps DCR and copper loss low, so the filter stays cool under continuous rated current.
  • Space-saving UU9.8 footprint -- vertical (or horizontal on request) through-hole mounting suits high-density boards where a toroidal choke will not fit.
  • Safety-oriented construction -- UL recognized bobbin and insulation materials (file reference marked on the body), reinforced barrier tape and controlled creepage/clearance for reliable primary-to-secondary isolation.
  • Stable performance over life -- vacuum varnish impregnation prevents audible buzz, moisture ingress and winding movement; 100% electrical inspection (L, DCR, Hi-Pot, short/open) before shipment.
  • 5-year quality warranty (extendable to 20 years for special industries such as medical, rail and energy storage).
  • Flexible order terms -- MOQ 100 pcs, sample support, RoHS & REACH compliant, ready for both prototype and mass production.
Technical Specifications
Product Name UU9.8 Common Mode Line Filter / Common Mode Choke Inductor
Series / Model MTUU98 series (customized part number available)
Core Type & Material UU9.8 Mn-Zn ferrite core, high initial permeability
Winding Dual winding, 100% enamelled copper wire (TIW / triple insulated wire optional)
Inductance Range [CONFIRM] e.g. 1 mH - 60 mH @ 10 kHz / 0.25 V
Inductance Tolerance [CONFIRM] e.g. ±30% (customizable)
Rated Current [CONFIRM] e.g. 0.3 A - 2.0 A
DC Resistance (DCR) [CONFIRM] per inductance code, see specification sheet
Hi-Pot / Withstand Voltage [CONFIRM] e.g. 1500 - 3000 VAC / 1 min, wire to wire
Insulation Resistance [CONFIRM] e.g. ≥100 MΩ @ 500 VDC
Operating Temperature -40 °C to +125 °C (including self temperature rise)
Mounting Type Through hole, vertical or horizontal; 4 pins (pin-out to drawing)
Compliance UL recognized bobbin & insulation material, RoHS, REACH
Packing Anti-static tray / PE bag + inner box + export carton

Electrical values are configured per customer requirement. Send us your target inductance, current and pin layout and we will issue a dedicated specification sheet.

Typical Applications
Power Conversion Lighting & New Energy Industrial & Consumer
Switching mode power supplies, AC/DC adapters, DC/DC modules, battery chargers LED drivers, solar/PV inverters, energy storage systems, on-board chargers UPS, industrial control & automation boards, smart home appliances, communication equipment
OEM & ODM Customization

Send us a drawing, a sample or simply your circuit requirement -- our engineering team converts it into a manufacturable design:

  • Inductance value, tolerance and turns ratio
  • Wire type & gauge (enamelled copper / TIW), current rating and temperature rise target
  • Pin quantity, pin pitch, vertical or horizontal base, lead forming
  • Creepage & clearance, insulation class, safety approval requirements
  • Body marking, private label and customized packaging
Drawing Sample MOQ Warranty
Within 3 days Within 7 days 100 pcs 5 years (20 years for special industries)
Quality Control
  • Incoming inspection of ferrite cores, bobbins, copper wire and insulation tape
  • In-process control on winding tension, layer insulation and soldering
  • 100% final test: inductance, DCR, Hi-Pot, insulation resistance, open/short circuit
  • Reliability verification: temperature rise, thermal shock, solderability and vibration on request
FAQ
Q1: What does a UU9.8 common mode choke actually do?
It presents high impedance to common mode noise current (flowing in the same direction on both lines) while the magnetic fields of the differential working current cancel each other. Result: EMI is attenuated with almost no loss to your power delivery.
Q2: Can you build it to my inductance and current?
Yes. Tell us the required inductance, rated current, pin layout and safety standard -- we will send a drawing within 3 days and samples within 7 days.
Q3: What is the minimum order quantity?
100 pcs for standard configurations; sample quantities are supported for evaluation.
Q4: Is the product compliant for export?
UL recognized bobbin and insulation materials are used, and the product is RoHS and REACH compliant. Test reports can be provided with the shipment.
Q5: How is it packed and shipped?
Anti-static bag/tray plus export carton, shipped by express, air or sea according to your preference.
Need a UU9.8 common mode line filter for your board?
Send us your specification or drawing today -- free technical evaluation, drawing in 3 days, samples in 7 days, MOQ 100 pcs.
UU9.8 Common Mode Power Line Choke Inductor Vertical Through Hole EMI Filter
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UU9.8 Common Mode Power Line Choke Inductor Vertical Through Hole EMI Filter

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Product Detail
Certification :
UL Recognized Material, RoHS, REACH
Model Number :
UU9.8
Application :
SMPS, LED Driver, Inverter, UPS, Home Appliance
MOQ :
100pcs
Delivery Time :
3~4 Weeks
Inductance Range :
1mH ~ 60mH @10kHz/0.25V (Customizable)
Contact Supplier
video
UU9.8 Common Mode Power Line Choke Inductor Vertical Through Hole EMI Filter
UU9.8 Common Mode Power Line Choke Inductor Vertical Through Hole EMI Filter
UU9.8 Common Mode Power Line Choke Inductor Vertical Through Hole EMI Filter
UU9.8 Common Mode Power Line Choke Inductor Vertical Through Hole EMI Filter

Dongguan Chipsen Electronics Technology Co., Ltd.

Verified Supplier
1 Years
guangdong, dongguan
Since 2007
Business Type :
Manufacturer
Main Products :
High Frequency Flyback Transformer, High Frequency SMPS Transformer, High Frequency Pulse Transformer
Total Annual :
28820000-29820000
Employee Number :
400~450
Certification Level :
Verified Supplier
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