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Product Detailed Parameters
- Description：455KHZ, 10KHZ MIN. @ 6DB
- Series：LTC455
- Mfr：Transko Electronics, Inc.
- Package：Strip
- Frequency：455kHz Center
- Impedance：1.5kOhm
- Bandwidth：12.5 kHz
- Insertion Loss：4dB
- Filter Type：AM
- Mounting Type：Surface Mount
- Package / Case：4-SMD, J-Lead
- Size / Dimension：0.472" L x 0.295" W (12.00mm x 7.50mm)
- Height (Max)：0.130" (3.30mm)
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Overview
The LTC455DW is a ceramic filter manufactured by Transko Electronics, Inc., designed for AM radio applications. It features a center frequency of 455kHz and a bandwidth of 12.5 kHz. The component exhibits an insertion loss of 4dB and offers a minimum attenuation of 10kHz at 6dB. It is housed in a 4-SMD, J-Lead package with a maximum height of 0.130 inches (3.30mm).
Feature Summary
- Utilizes ceramic technology for stable signal filtering in communication circuits.
- Engineered specifically for AM broadcast band reception systems.
- Provides defined bandwidth characteristics to isolate desired audio frequencies.
Applications
- AM radio receiver intermediate frequency stages
- Communication equipment signal processing
- Consumer electronics audio demodulation
Procurement Notes
Verify the specific ordering suffix against manufacturer documentation to ensure compatibility with design requirements. Confirm that the 4-SMD J-Lead package dimensions align with PCB layout constraints. Cross-reference the datasheet version to validate electrical parameters such as insertion loss and bandwidth specifications before finalizing procurement decisions.
Selection Notes
Select this component when designing AM receivers requiring a 455kHz intermediate frequency stage. Ensure the circuit accommodates the specified 12.5 kHz bandwidth for optimal audio fidelity. Consider the surface mount J-Lead form factor for automated assembly processes and compact board space utilization in consumer electronic devices.
Part Context
This part belongs to the family of chip ceramic filters produced by Transko Electronics, Inc. These components are widely used in analog communication systems where precise frequency selection is critical. The LTC455DW represents a standard solution for intermediate frequency filtering in traditional AM radio architectures.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided source material. Consult official distributor catalogs or manufacturer cross-reference guides for compatible alternatives if supply chain adjustments are necessary.
