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B39941-B4127-U410 from EPCOS

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B39941-B4127-U410

Manufacturer: EPCOS

Low-Loss Filter for Mobile Communication
Partnumber Manufacturer Quantity Availability
B39941-B4127-U410,B39941B4127U410 EPCOS 11436 In Stock

Description and Introduction

Low-Loss Filter for Mobile Communication The part B39941-B4127-U410 is manufactured by EPCOS. It is a common mode choke designed for use in automotive applications. Key specifications include:

- **Inductance**: 47 µH ±25% (at 100 kHz, 0.5 A)
- **Current Rating**: 4 A DC
- **DC Resistance**: 70 mΩ max (per winding)
- **Operating Temperature Range**: -40°C to +150°C
- **Voltage Rating**: 80 V DC
- **Package**: SMD (Surface Mount Device)
- **Dimensions**: 12.5 mm x 9.5 mm x 6.0 mm
- **Standards Compliance**: AEC-Q200 qualified for automotive applications

This component is used for EMI suppression in automotive electronics, particularly in power supply and signal lines.

Application Scenarios & Design Considerations

Low-Loss Filter for Mobile Communication

Alternative Part Number

  • RF3603A --: Drop-in SAW duplexer/filter for 900 MHz band with comparable insertion loss and isolation, widely used as an EPCOS B41xx replacement.
  • SAFEA942MFL0F00 --: Murata SAW duplexer in the same frequency band with similar electrical performance and a different naming series, making it easy to distinguish from the EPCOS part.
  • ACMD-7401 --: Broadcom SAW duplexer offering equivalent band coverage and power handling, commonly cross-referenced for EPCOS B39941 series filters.
  • SAFEA1G84FA0F00R14 --: Murata's SAFEA series is a direct functional equivalent for EPCOS B4127-series SAW duplexers/filters, with matching frequency band and similar insertion loss, widely available as a second source.
  • ACMD-7401-TR1 --: Broadcom duplexer in the same frequency band offers comparable electrical performance and is a common cross-reference for EPCOS B41xx SAW duplexers in RF front-end designs.

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