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TDK 39 mH Ferrite Power Line Choke, Max SRF 10 kHz, 400 mA Idc, 2 Ω Rdc, 250 V AC, Radial Lead B82721A2401N020
Specifications
| Country of Origin | Hungary |
|---|---|
| Diameter | 17.9mm |
| Brand | TDK |
| Height | 12.6mm |
| Length | 17.3mm |
| Model | B82721A2401N020 |
| Depth | 17.9mm |
| Packaging | Blister Tray in Cardboard Box |
| Mount Type | Radial |
| Series | B82721A |
| Maximum Operating Temperature | 125°C |
| Minimum Operating Temperature | -40°C |
| Core Material | Ferrite |
| Maximum Voltage | 250V ac |
| Inductance | 39mH |
| Standards/Approvals | VDE, UL, RoHS |
| Maximum DC Current | 400mA |
| Pin Count | 4 |
| Maximum DC Resistance | 2Ω |
| Inductance Tolerance | ±30 % |
| Termination Style | Radial Lead |
| Maximum Self Resonant Frequency | 10kHz |
| Lead Pitch | 15mm |
| Lead Diameter | 0.7mm |
Key Features
- Inductance of 39 mH with ±30% tolerance for consistent performance.
- Supports a maximum DC current of 400 mA ensuring reliable operation.
- Maximum DC resistance of 2 Ω minimizes power loss.
- Compact radial lead design with 15 mm lead pitch for easy PCB mounting.
- Operates in temperatures from -40°C to 125°C for industrial reliability.
- Ferrite core material offers high saturation and low losses.
- Maximum self-resonant frequency of 10 kHz ideal for power supply noise reduction.
- Complies with VDE, UL, and RoHS standards ensuring quality and safety.
Product Description
TDK B82721A2401N020 is a 39 mH ferrite power line choke with a maximum self-resonant frequency of 10 kHz, designed for filtering and noise suppression in electronic circuits.
The choke utilizes a ferrite core with a radial lead termination style, making it well suited for PCB mounting in power supplies and sensitive electronic devices such as computers and televisions.
It supports a maximum DC current of 400 mA and has a maximum DC resistance of 2 Ω, ensuring efficient operation under load. Its rated voltage of 250 V AC and a wide operating temperature range from -40°C to 125°C make it suitable for demanding industrial and commercial applications.
The compact dimensions including a diameter and depth of 17.9 mm, height of 12.6 mm, and a lead pitch of 15 mm allow for space-saving designs.
This component complies with VDE 0565-2 and UL 1283 standards, and meets RoHS environmental requirements. The product is part of the B82721A series which features common mode choke coils in flame-retardant potting for enhanced safety.
Applications include switch-mode power supplies, electronic ballasts, and equipment requiring electromagnetic interference (EMI) suppression. Inductance of 39 mH with ±30% tolerance ensures effective filtering. Maximum DC current rating of 400 mA provides reliable current handling.
Radial lead termination for secure and easy PCB mounting. Core material ferrite offers high performance and low loss. Wide temperature range from -40°C to 125°C for versatility. Maximum operating voltage of 250 V AC suits varied electronic devices.
Complies with industry standards VDE, UL, and RoHS for safety and quality. Compact form factor helps optimize PCB space. Manufactured in Hungary with blister tray packaging for protection. Ideal for industrial, commercial, and consumer electronics applications.
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Frequently Asked Questions
The inductance value of this model is 39 mH with a tolerance of ±30%.
It supports a maximum DC current of 400 mA, ensuring reliable operation under load.
The maximum self-resonant frequency is 10 kHz, making it suitable for power supply noise reduction.
The choke has a diameter of 17.9 mm, height of 12.6 mm, and a length of 17.3 mm.
It has a maximum operating voltage of 250 V AC, suitable for various electronic devices.
This unit features a radial lead termination style, allowing for secure and easy PCB mounting.
The maximum DC resistance is 2 Ω, which minimizes power loss during operation.
It operates within a temperature range of -40°C to 125°C, suitable for industrial applications.
This choke complies with VDE, UL, and RoHS standards, ensuring quality and safety.
The lead pitch is 15 mm, facilitating easy integration into PCB designs.
It is manufactured in Hungary and is packaged in a blister tray within a cardboard box for protection.
This model is suitable for applications such as switch-mode power supplies, electronic ballasts, and EMI suppression.
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