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STMicroelectronics ECMF04-4HSM10Y
- Part No.:
- ECMF04-4HSM10Y
- Manufacturer:
- STMicroelectronics
- Category:
- Common Mode Chokes
- Package:
- 10-UFDFN
- Datasheet:
-
ECMF04-4HSM10Y.pdf
- Description:
- CMC 100MA 4LN SMD ESD
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
ECMF04-4HSM10 from STMicroelectronics is a dual-lane, high-speed common mode filter with integrated ESD protection for HDMI Full HD, MIPI D-PHY 2.5 Gbps, USB 2.0/3.2 Gen 1 (5.0 Gbps), and DisplayPort interfaces. It delivers -25 dB common mode attenuation at 800–900 MHz, supports ±15 kV air/±8 kV contact ESD per IEC 61000-4-2 Level 4, and maintains differential signal integrity up to 7 GHz bandwidth.
For engineers reviewing the ECMF04-4HSM10 datasheet, ECMF04-4HSM10 pinout, ECMF04-4HSM10 application in high-speed serial buses, or ECMF04-4HSM10 equivalent for EMI filtering and ESD protection, this device provides verified common mode suppression, low DC resistance (5 Ω), and compact µQFN-10L packaging optimized for mobile and portable PCB layouts.
Technical Context
The ECMF04-4HSM10 integrates two independent common mode chokes with bidirectional ESD protection diodes per differential pair, enabling simultaneous filtering and transient suppression on two high-speed lanes. Its differential impedance remains matched near 100 Ω across 100 MHz–7 GHz, while common mode impedance peaks above 500 Ω between 800–900 MHz to maximize rejection.
It operates over -55 °C to +125 °C ambient, with 100 mA RMS current rating and clamping voltage ≤6 V at 1 mA breakdown, ensuring robust signal integrity preservation during ESD events without signal distortion or eye diagram degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR | 6 V at 1 mA - Ensures reliable ESD clamping before signal line damage occurs |
| RDC | 5 Ω - Minimizes insertion loss and voltage drop across differential paths |
| Common mode attenuation | -25 dB @ 800–900 MHz - Directly suppresses LTE-band interference coupling into data lanes |
| Differential bandwidth | Up to 7 GHz - Supports HDMI 1.4 (3.35 Gbps), USB3.2 Gen 1 (5.0 Gbps), and MIPI D-PHY 2.5 Gbps |
| ESD rating | ±15 kV air / ±8 kV contact per IEC 61000-4-2 Level 4 - Meets industrial and handheld device immunity requirements |
| Package height | 0.55 mm max - Enables ultra-thin stacking in smartphones and ultrabooks |
Pinout & Package
ECMF04-4HSM10 uses a µQFN-10L package (2.6 × 1.35 × 0.55 mm) with wettable flanks and exposed thermal pad. Pin numbering follows standard QFN orientation with dot marking pin 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | D1+ to connector | Input side of first differential lane positive line - connects to external interface (e.g., HDMI connector) |
| 2 | D1− to connector | Input side of first differential lane negative line - completes differential pair routing from connector |
| 3 | GND | Ground reference for ESD clamp network and common mode choke return |
| 4 | D2+ to connector | Input side of second differential lane positive line - supports dual-lane interfaces like MIPI or dual-link DP |
| 5 | D2− to connector | Input side of second differential lane negative line - maintains symmetry for common mode rejection |
| 6 | D2− to IC | Output side of second differential lane negative line - routes filtered signal to SoC or controller |
| 7 | D2+ to IC | Output side of second differential lane positive line - preserves differential timing and impedance |
| 8 | GND | Secondary ground terminal - improves high-frequency return path integrity |
| 9 | D1− to IC | Output side of first differential lane negative line - enables clean signal delivery to host IC |
| 10 | D1+ to IC | Output side of first differential lane positive line - completes low-parasitic, high-fidelity signal path |
Key Features
| Feature | Design Value |
|---|---|
| Dual-lane common mode filtering | Simultaneously filters two independent high-speed differential pairs without crosstalk or skew increase |
| Integrated bidirectional ESD protection | Clamps transients to ≤6 V while maintaining <100 nA leakage at 3 V - avoids DC bias shift or signal loading |
| Ultra-low profile µQFN-10L | 0.55 mm max height enables use in space-constrained mobile PCBs where Z-height is critical |
| High-frequency common mode rejection | -25 dB attenuation from 800–900 MHz directly mitigates cellular band noise coupling into video/data lines |
| Preserved differential impedance | 100 Ω differential characteristic impedance maintained up to 7 GHz - prevents eye closure in 5 Gbps links |
Applications
| Mobile Phone Front Camera Interface | HDMI 1.4 Signal Path in Tablet |
|---|---|
Use Scenario: Filtering MIPI D-PHY signals between image sensor and application processor under tight board space constraints. IC Role / Device Role / Timing Role: Common mode choke and ESD protector placed inline on differential clock and data lanes. Use Value: Prevents antenna desense from RF coupling into camera interface while preserving 2.5 Gbps eye opening per AN4356. |
Use Scenario: HDMI 1.4 source-side filtering between GPU and edge connector in 7-inch tablet design. IC Role / Device Role / Timing Role: Dual-lane common mode filter on TMDS clock and data channels before ESD-sensitive connector. Use Value: Eliminates common mode noise-induced jitter, improving HDMI eye diagram margin by >30% per Figure 6–7 in DS9770. |
| USB 3.2 Gen 1 Host Port in Laptop | DisplayPort Main Link in Ultrabook |
Use Scenario: Protecting USB 3.2 Gen 1 SuperSpeed differential pairs from ESD and LTE-band RFI in thin-bezel laptop chassis. IC Role / Device Role / Timing Role: In-line common mode filter with integrated ESD diodes on RX/TX lanes near USB-C receptacle. Use Value: Maintains 5.0 Gbps signal integrity through worst-case cable/equalizer channel per Figure 10–11, reducing bit error rate. |
Use Scenario: Filtering DisplayPort main link differential pairs in fanless ultrabook with metal housing and high-density routing. IC Role / Device Role / Timing Role: Dual-lane common mode suppression on all four DP lanes (two ECMF04-4HSM10 devices used). Use Value: Achieves >20 dB common mode attenuation at 850 MHz, preventing radiated emissions failure in CISPR 22 Class B testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar common mode filtering and ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDK MEM2012P50R0T001 | Single-lane, 50 Ω common mode impedance, no integrated ESD diodes - requires external TVS | Limited to single differential pair; unsuitable for dual-lane HDMI or MIPI without duplication | Select when discrete ESD control is preferred and board area allows separate protection components |
| ON Semiconductor NUF2221MUTAG | Quad-channel ESD array only - no common mode choke function; 12 pF line capacitance degrades >1 Gbps signals | Provides ESD-only protection; cannot replace common mode filtering function in high-speed serial links | Use only as supplemental ESD clamp where common mode noise is not present or separately filtered |
Compared with TDK MEM2012P50R0T001 and ON Semi NUF2221MUTAG, ECMF04-4HSM10 uniquely combines dual-lane common mode rejection, sub-6 V clamping, and 7 GHz bandwidth in one µQFN-10L package - eliminating need for discrete chokes or high-capacitance TVS arrays that impair signal integrity.
Availability
ECMF04-4HSM10 is available at Aetrix Electronics and suitable for mobile phone front camera interfaces, HDMI 1.4 signal paths in tablets, and USB 3.2 Gen 1 host ports requiring stable component supply and consistent ESD performance across production batches.
Supply support for ECMF04-4HSM10 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, digital, and mixed-signal ICs for automotive, industrial, and consumer markets.
ECMF04-4HSM10 belongs to ST's ECMF series of integrated EMI filters - engineered specifically for high-speed serial interface protection in space-constrained portable electronics with stringent ESD and radiated emission requirements.
FAQ
What is the maximum data rate supported by ECMF04-4HSM10?
ECMF04-4HSM10 supports differential data rates up to 5.0 Gbps (USB 3.2 Gen 1) and 3.35 Gbps (HDMI 1.4), validated via eye diagram testing in Figures 6–13 of DS9770 Rev 6. Its 7 GHz differential bandwidth ensures minimal signal degradation at these speeds.
Does ECMF04-4HSM10 require external bias or control signals?
No. ECMF04-4HSM10 is a passive, fully integrated device with no power pins or enable controls. It operates transparently in-circuit using only its internal common mode chokes and bidirectional ESD diodes - no configuration or external components needed.
Can ECMF04-4HSM10 be used for PCIe Gen 2 or Gen 3 applications?
No. While its differential bandwidth extends to 7 GHz, ECMF04-4HSM10 is characterized and qualified only for HDMI 1.4, MIPI D-PHY, USB 2.0/3.2 Gen 1, and DisplayPort - not PCIe Gen 2 (5 GT/s) or Gen 3 (8 GT/s), which demand tighter impedance control and lower insertion loss than specified.
How does the dual-GND pin configuration improve performance?
Pins 3 and 8 provide separate, low-inductance ground returns for each differential lane's ESD clamp network. This reduces mutual coupling between lanes and improves high-frequency common mode rejection - confirmed by -25 dB attenuation at 800–900 MHz in Table 2 and Figure 3.
ECMF04-4HSM10Y Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 10-UFDFN
- Filter Type:
- Signal Line
- Number of Lines:
- 4
- Impedance @ Frequency:
- -
- Current Rating (Max):
- -
- DC Resistance (DCR) (Max):
- 100mA
- Voltage Rating - DC:
- 5Ohm (Typ)
- Voltage Rating - AC:
- -
- Operating Temperature:
- -
- Ratings:
- -55°C ~ 125°C
- Approval Agency:
- -
- Features:
- -
- Mounting Type:
- TVS Diode ESD Protection
- Size / Dimension:
- -
- Height (Max):
- -
ECMF04-4HSM10Y FAQ
1.How can I place an order for ECMF04-4HSM10Y through Aetrix?
Please submit a Request for Quotation (RFQ) for ECMF04-4HSM10Y on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ECMF04-4HSM10Y reliable?
The price and inventory of ECMF04-4HSM10Y are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ECMF04-4HSM10Y is usually 5 days.
3.What payment methods are accepted for ECMF04-4HSM10Y?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ECMF04-4HSM10Y transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ECMF04-4HSM10Y?
ECMF04-4HSM10Y orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ECMF04-4HSM10Y order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ECMF04-4HSM10Y?
For technical support, including ECMF04-4HSM10Y datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ECMF04-4HSM10Y requirements.
6.How does Aetrix verify that ECMF04-4HSM10Y is sourced from the original manufacturer or authorized distributors?
All ECMF04-4HSM10Y products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ECMF04-4HSM10Y meets industry standards.
7.What is the process for return or replacement of ECMF04-4HSM10Y?
All ECMF04-4HSM10Y units undergo pre-shipment inspection (PSI). If there is an issue with ECMF04-4HSM10Y, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ECMF04-4HSM10Y part is unused and in its original packaging.
Return procedure for ECMF04-4HSM10Y:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ECMF04-4HSM10Y Tags
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