ECMF02-4CMX8
four-line common-mode filter with ESD protection for dual high-speed differential channels
Key details
| Part Number | ECMF02-4CMX8 |
|---|---|
| Manufacturer | STMicroelectronics |
| Category | Common Mode Filter |
| Lifecycle Status | Obsolete |
| Series | ECMF02 |
| Package / Case | 8-lead micro-QFN, low profile |
| Pin Count | 8 |
| Operating Temperature | -40°C to +85°C |
| Last Verified | 2026-07-20 |
Part information
ECMF02-4CMX8 Overview
ECMF02-4CMX8 is a STMicroelectronics four-line common-mode filter with ESD protection for dual high-speed differential channels supplied in 8-lead micro-QFN, low profile. This page uses the exact orderable code because package, grade, temperature and option suffixes can change compatibility.
Key Technical Specifications
| Differential Lines | 2 pairs |
|---|---|
| Differential Bandwidth | Greater than 6 GHz |
| ESD Rating | 15 kV air and 8 kV contact IEC 61000-4-2 |
| VBUS Protection | Up to 16 V |
| Interface | USB 2.0 and high-speed differential links |
Package and Ordering Notes
The listed package is 8-lead micro-QFN, low profile with 8 pins, leads, lands or contacts. The featured image is a generic package illustration for form-factor identification and is not an actual date-code or lot photograph. Lifecycle is recorded as Obsolete; confirm current factory support and last-time-buy constraints before design-in.
Sourcing Guidance
ECMF02-4CMX8 is obsolete or discontinued. Source only with date-code, label, package and traceability checks, and validate the suggested replacement independently.
For an accurate quotation, include the full MPN, target quantity, acceptable date-code range, packaging format and destination. Icearth can help review traceability documents, label photos and electrical/package alignment before order placement.
Manufacturer Documentation
Technical values were checked against STMicroelectronics documentation. Use the linked datasheet as the controlling source and re-check revisions before PCB release or firmware qualification.
ECMF02-4CMX8 selection and design context
ECMF02-4CMX8 is cataloged as a Common Mode Filter in the ECMF02 family. Its recorded function is four-line common-mode filter with ESD protection for dual high-speed differential channels. Selection should be based on the complete electrical limits, package drawing and ordering suffix rather than the abbreviated family code.
- Differential Lines: 2 pairs. Confirm the value and its datasheet test conditions for the exact ordering suffix.
- Differential Bandwidth: Greater than 6 GHz. Confirm the value and its datasheet test conditions for the exact ordering suffix.
- ESD Rating: 15 kV air and 8 kV contact IEC 61000-4-2. Confirm the value and its datasheet test conditions for the exact ordering suffix.
- VBUS Protection: Up to 16 V. Confirm the value and its datasheet test conditions for the exact ordering suffix.
Application and qualification considerations
When evaluating this protection device, confirm working voltage, clamping behavior, surge or ESD rating, capacitance, polarity and placement relative to the protected interface. For a new design, review power-up behavior, interface timing, absolute maximum ratings, thermal limits and any external-component requirements in the latest manufacturer documentation. Existing-board replacement work should additionally confirm pinout, footprint, firmware assumptions and qualification grade.
Procurement checks for ECMF02-4CMX8
The recorded package is 8-lead micro-QFN, low profile, the temperature range is -40°C to +85°C, and the lifecycle status is Obsolete as of 2026-07-20. Before ordering, confirm the exact MPN on the label, packing format, quantity, date-code requirements, traceability documents and current factory status.
ECMF02-4CMX8 FAQ
What distinguishes ECMF02-4CMX8 within the ECMF02 family?
ECMF02-4CMX8 is the exact orderable code for a four-line common-mode filter with ESD protection for dual high-speed differential channels in 8-lead micro-QFN, low profile. Related ECMF02 devices may change package, rating, interface option or qualification grade, so compare the manufacturer ordering table before substitution.
What package and footprint checks are required for ECMF02-4CMX8?
ECMF02-4CMX8 is recorded in 8-lead micro-QFN, low profile with 8 pins, leads or contacts. Confirm the manufacturer package drawing, dimensions, pin numbering, exposed-pad requirements and packing suffix before releasing a PCB footprint.
Which specifications should be verified when selecting ECMF02-4CMX8?
Differential Lines is recorded as 2 pairs, Differential Bandwidth is recorded as Greater than 6 GHz. Use the latest datasheet for minimum and maximum limits, test conditions, timing and absolute maximum ratings rather than relying only on a distributor summary.
What is the lifecycle status of ECMF02-4CMX8?
ECMF02-4CMX8 was recorded as Obsolete when verified on 2026-07-20. Reconfirm factory status, revision availability, lead time and any last-time-buy notice before design-in or volume procurement.
What information should be included in an RFQ for ECMF02-4CMX8?
Provide the complete ECMF02-4CMX8 orderable code, target quantity, acceptable date-code range, required packing method, delivery destination and documentation needs. For replacement work, also identify the existing package and any mandatory qualification grade.
Lifecycle and sourcing review
This part has a legacy lifecycle status. Submit the exact MPN, quantity, delivery destination and date-code requirements for a sourcing review.
ECMF02-4CMX8 is obsolete or discontinued. Source only with date-code, label, package and traceability checks, and validate the suggested replacement independently.
Potential alternative part numbers
Verify package, pinout, voltage, firmware behavior and qualification before substitution.