CM6300 RC (Pi) EMI Filter Equivalent & Substitute Parts

Part Overview

The CM6300 is a 2nd order low pass RC (Pi) EMI filter with 3 channels designed for data line protection in mobile devices. It integrates 47Ohms and 100Ohms resistance values with 16.7pF capacitance and includes ESD protection in an 8-WFBGA, WLCSP package measuring 1.60mm x 1.60mm x 0.69mm. The CM6300 is currently obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and component sourcing.

Substiute Parts

CM6300

onsemiIn Stock: 65450CM6300 Datasheet

Current PartRFQ

EMIF03-SIM02M8

STMicroelectronicsIn Stock: 6292EMIF03-SIM02M8 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the CM6300 is determined by the following critical parameters that must remain consistent:

• Filter topology: 2nd order low pass RC (Pi) configuration
• Channel count: 3 channels
• Resistance values: 47Ohms and 100Ohms per channel
• Capacitance value: 16.7pF nominal (tolerance range acceptable)
• ESD protection: Integrated protection required
• Operating temperature range: -40°C to 85°C minimum
• Mounting: Surface mount technology
• Application context: Data line filtering for mobile devices

The EMIF03-SIM02M8 from STMicroelectronics meets these substitution criteria. While the package form factor differs (8-UFDFN Exposed Pad versus 8-WFBGA, WLCSP), the electrical specifications, channel configuration, and component values remain functionally equivalent within acceptable engineering tolerances.

Parameter Comparison

Engineering Selection Recommendations

The EMIF03-SIM02M8 is the qualified substitute for the obsolete CM6300 based on electrical equivalence and active product status. The EMIF03-SIM02M8 maintains identical filter topology, channel configuration, and component values within acceptable tolerances. The capacitance variance of 0.3pF (17pF versus 16.7pF) is within standard component tolerances and does not affect functional performance in data line filtering applications.

The EMIF03-SIM02M8 offers superior compliance posture with ROHS3 certification and active manufacturing status, ensuring long-term availability and supply chain stability. Package form factor differences require PCB layout modification, but electrical performance and thermal characteristics remain compatible for mobile device data line applications.

Frequently Asked Questions (FAQ)

Q: Can the EMIF03-SIM02M8 directly replace the CM6300 without PCB modification?

A: The electrical specifications are equivalent, but the package form factor differs. The CM6300 uses 8-WFBGA, WLCSP while the EMIF03-SIM02M8 uses 8-UFDFN Exposed Pad. PCB footprint redesign is required for physical substitution.

Q: What is the significance of the 0.3pF capacitance difference between the two parts?

A: The capacitance variance from 16.7pF to 17pF falls within standard component manufacturing tolerances and does not materially affect filter performance in data line applications. Both values produce equivalent low pass filtering characteristics for mobile device signal integrity.

Q: Is the EMIF03-SIM02M8 suitable for the same operating temperature range?

A: Yes. Both parts operate across -40°C to 85°C, meeting identical thermal requirements for mobile device applications.

Q: What compliance advantages does the EMIF03-SIM02M8 offer?

A: The EMIF03-SIM02M8 is ROHS3 compliant and maintains active product status with STMicroelectronics, providing regulatory compliance and assured long-term supply availability compared to the obsolete CM6300.

Q: Are there any differences in ESD protection between these parts?

A: Both parts include integrated ESD protection for data line applications. Protection levels are equivalent for mobile device use cases.