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Product Detailed Parameters
- Description：DATA LINE FILTER, 8 FUNCTION(S),
- Series：*
- Mfr：onsemi
- Package：Bulk
- Type：-
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- Attenuation Value：-
- Resistance - Channel (Ohms)：-
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- ESD Protection：-
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- Applications：-
- Voltage - Rated：-
- Mounting Type：-
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Overview
The CM1408-08DE is an eight-channel EMI filter array with integrated ESD protection, manufactured by onsemi. It utilizes a Pi-style RC circuit topology within a compact TDFN package. Key electrical parameters include a capacitance of 7.5 pF and resistance values ranging from 100 to 240 Ohms depending on the specific variant configuration. The device operates within a frequency range of 800 MHz to 3 GHz, providing attenuation of 25 dB. It supports a maximum DC resistance of 120 Ohms and functions at voltages up to 2.5V. The component is rated for temperatures between -40°C and +85°C.
Feature Summary
- Integrates eight independent filter channels in a single small form factor package
- Provides combined EMI filtering and electrostatic discharge (ESD) protection capabilities
- Utilizes a pi-style RC network architecture for signal line conditioning
Applications
- High-speed LCD interface circuits
- Camera module data lines
- Portable electronic device signal protection
Procurement Notes
Verify the exact datasheet revision and specific resistance/capacitance tolerances against your schematic requirements, as variations exist within the CM1408 series. Confirm package dimensions match your PCB footprint design. Check current availability status as supply chain conditions may affect lead times for this specific part number.
Selection Notes
Select this component when space-constrained designs require simultaneous EMI suppression and ESD protection for multiple high-speed data lines. Ensure the operating voltage does not exceed the specified limit. Verify that the low capacitance value meets the bandwidth requirements of the target application without distorting signal integrity.
Part Context
This component belongs to the CM1407/CM1408 family of EMI filter arrays designed for portable electronics. It serves as a solution for protecting sensitive interfaces in mobile devices. The series is characterized by its ability to integrate passive filtering components with transient voltage suppression diodes in a unified surface-mount package.
Replacement Considerations
The CM1407-08DE is a related variant within the same product family. Verify pin compatibility and specific electrical parameter differences before substitution.
