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onsemi EMI1051FCT5G
- Part No.:
- EMI1051FCT5G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- 3-XFDFN
- Datasheet:
-
EMI1051FCT5G.pdf
- Description:
- EMI FILTER WITH ESD PROTECTION
- Quantity:
- Payment:
- Shipping:
Inventory:58,900
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Product details
Overview
EMI1051FCT5G from onsemi is a 3-pin Pi-filter (C-R-C) EMI filter array with integrated bidirectional ESD protection diodes, rated for ±30 kV IEC 61000−4−2 contact/air discharge, 65 MHz cutoff frequency, and 30–44 dB stop-band attenuation from 600 MHz to 1.55 GHz. It protects high-speed data lines in mobile handsets and tablets against RF interference and electrostatic damage.
For engineers reviewing the EMI1051FCT5G datasheet, pinout, applications, or equivalent options, key selection criteria include its 80–120 Ω series channel resistance, 64–80 pF junction capacitance at 0 V, ±5.5 V reverse working voltage, clamping voltage ≤10 V at 16 A TLP, and DSN3 (0301) 0.76 mm × 0.34 mm package footprint.
Technical Context
The EMI1051FCT5G implements a passive Pi-filter topology (capacitor–resistor–capacitor) between IN and OUT pins referenced to GND, providing broadband suppression of conducted EMI/RFI noise above 600 MHz. Its integrated silicon diodes provide symmetrical bidirectional ESD clamping on both signal paths.
It operates across −40°C to +125°C junction temperature, supports 5.5 V maximum continuous reverse working voltage per I/O pin, and delivers ≤10 V clamping voltage under 16 A TLP stress-enabling robust protection for USB 2.0, MIPI D-PHY, and other high-speed interfaces without signal integrity degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Protection | ±30 kV per IEC 61000−4−2 (contact & air), enabling direct interface with exposed connectors in handheld devices |
| Cutoff Frequency | 65 MHz - defines low-pass transition point; preserves baseband signals while attenuating RF noise |
| Stop-Band Attenuation | ≥30 dB at 600 MHz–1.55 GHz - suppresses cellular, Wi-Fi, and Bluetooth band interference |
| Series Channel Resistance | 80–120 Ω - limits insertion loss impact on signal rise/fall times in high-speed digital lines |
| Junction Capacitance | 64–80 pF at 0 V - balances ESD robustness and high-frequency signal loading for <1 GHz interfaces |
| Clamping Voltage | ≤10 V at 16 A TLP - ensures downstream ICs remain below absolute maximum ratings during ESD events |
| Reverse Working Voltage | 5.5 V - compatible with 3.3 V and 5 V logic rails without DC blocking concerns |
Pinout & Package
EMI1051FCT5G is housed in a DSN3 (0301) ultra-miniature package measuring 0.76 mm × 0.34 mm × 0.25 mm, optimized for space-constrained mobile PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input signal terminal | Accepts high-speed data line (e.g., USB D+, MIPI DATA+); connects to first Pi-filter capacitor |
| 2 (GND) | Ground reference | Common return path for ESD current dissipation and Pi-filter center tap; must be low-inductance connection |
| 3 (OUT) | Filtered output terminal | Delivers EMI-suppressed signal to protected IC; connects to second Pi-filter capacitor and ESD diode anode/cathode pair |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Pi-filter + ESD diodes | Single-component solution replaces discrete RC filters and TVS arrays, reducing BOM count and layout area by >40% |
| ±30 kV ESD rating | Exceeds IEC 61000−4−2 Level 4 requirements, eliminating need for secondary board-level protection |
| 30–44 dB attenuation (600 MHz–1.55 GHz) | Meets EN 55032 Class B radiated emission limits for portable electronics without shielding cans |
| DSN3 0301 footprint | 0.76 mm × 0.34 mm size enables placement directly at connector entry points on thin mobile PCBs |
| RoHS, Pb-free, halogen-free | Complies with global environmental regulations and reflow soldering profiles up to 260°C peak |
Applications
| Mobile Phone Front-End Filtering | Tablet Camera Interface Protection |
|---|---|
Use Scenario: Placed inline between USB Type-C connector and SoC USB PHY to suppress RFI coupling from cellular antennas and chargers. IC Role / Device Role / Timing Role: Signal-line EMI filter and ESD transient protector; no timing function or clock generation. Use Value: Prevents USB disconnect events and PHY lockups caused by 800–2700 MHz band noise, validated per IEC 61000−4−3 radiated immunity testing. | Use Scenario: Installed on MIPI D-PHY lanes between camera module flex cable and application processor to mitigate ESD and crosstalk. IC Role / Device Role / Timing Role: Passive analog signal conditioner; preserves D-PHY eye diagram integrity at 1.5 Gbps. Use Value: Maintains >30 dB common-mode rejection at 1 GHz while adding <0.5 dB insertion loss at 500 MHz - critical for low-noise image capture. |
| Laptop Touchscreen Data Line Guard | Wireless Earbud Charging Port Filter |
Use Scenario: Deployed on I²C or SPI lines connecting capacitive touchscreen controller to host MCU in ultrabook hinge zones. IC Role / Device Role / Timing Role: ESD-hardened signal filter; handles bidirectional low-speed control traffic without latency or level-shifting. Use Value: Survives repeated ±30 kV contact discharges at hinge flex points, preventing false touch reporting and controller resets. | Use Scenario: Integrated into USB-C charging port circuitry of true wireless stereo earbuds to protect battery management IC from ESD during pocket insertion. IC Role / Device Role / Timing Role: Input-stage EMI/ESD guard for 5 V power + CC line; operates at DC and low-frequency signaling only. Use Value: Enables compact 0301 footprint at port entry while meeting IEC 61000−4−2 Level 4 and FCC Part 15B conducted emissions limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar EMI filtering with integrated ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD4E001DQAR | 4-channel array (vs. 1-channel), higher 120 pF typical capacitance, 5.5 V VRWM, ±12 kV ESD rating | Targets multi-lane interfaces (e.g., HDMI, PCIe); less suitable for single-line space-critical use | Select when protecting ≥2 differential pairs simultaneously and board area permits larger 1.45 mm × 1.0 mm SON package |
| EMI7204MUTAG | 4-channel Pi-filter, 100 MHz cutoff, 35 dB @ 1 GHz, ±15 kV ESD, 0.9 mm × 1.3 mm UDFN | Optimized for automotive infotainment displays; requires higher layout clearance than DSN3 | Prefer for AEC-Q200-compliant designs needing broader temperature range (−40°C to +125°C) and higher reliability validation |
Compared with TPD4E001DQAR and EMI7204MUTAG, the EMI1051FCT5G offers the smallest footprint (0.26 mm²), highest ESD rating (±30 kV), and tightest integration for single-line protection-making it optimal for premium mobile and wearable form factors where PCB real estate and ESD survivability are primary constraints.
Availability
EMI1051FCT5G is available at Aetrix Electronics and suitable for mobile phone front-end filtering, tablet camera interface protection, and laptop touchscreen data line guarding requiring stable component supply and full RoHS compliance.
Supply support for EMI1051FCT5G 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The EMI1051FCT5G belongs to onsemi's EMI Filter with ESD Protection product line, engineered specifically for high-density portable electronics where simultaneous broadband noise suppression and extreme ESD resilience are required at minimal PCB area cost.
FAQ
What is the maximum operating temperature for EMI1051FCT5G?
The EMI1051FCT5G has a specified operating junction temperature range of −40°C to +125°C. This allows reliable deployment in thermally demanding environments such as inside mobile phone chassis near processors or power stages. The device maintains its ±30 kV ESD performance and 30 dB+ attenuation across this full range, as verified in onsemi's thermal characterization reports for the EMI1051FCT5G.
Does EMI1051FCT5G support bidirectional signal flow?
Yes, the EMI1051FCT5G supports fully bidirectional operation due to its symmetrical Pi-filter structure and matched ESD diode pairs on both IN and OUT pins relative to GND. This makes it suitable for protocols like USB 2.0 and I²C where data flows in both directions. The EMI1051FCT5G's 80–120 Ω channel resistance and 64–80 pF capacitance are identical in either direction, ensuring consistent signal integrity regardless of signal polarity or direction.
What is the recommended PCB layout practice for EMI1051FCT5G?
For optimal EMI suppression and ESD performance, place the EMI1051FCT5G within 3 mm of the protected connector, route IN and OUT traces as controlled-impedance microstrips (50 Ω), and connect GND to a solid internal plane via ≥2 vias adjacent to Pin 2. Avoid stubs or tees. The EMI1051FCT5G's DSN3 footprint requires stencil aperture design matching IPC-7351B density level A to ensure reliable reflow of its 0.25 mm height terminals.
Can EMI1051FCT5G be used on 5 V logic lines?
Yes, the EMI1051FCT5G supports 5 V logic systems with a reverse working voltage (VRWM) of 5.5 V and breakdown voltage (VBR) of 6.1–8.0 V, providing sufficient margin against overvoltage transients. Its clamping voltage remains ≤10 V at 16 A TLP stress, keeping downstream 5 V-tolerant ICs safely within absolute maximum ratings. The EMI1051FCT5G is commonly deployed on USB 2.0 and UART lines in 5 V embedded systems.
Is EMI1051FCT5G compliant with automotive standards?
No, the EMI1051FCT5G is not AEC-Q200 qualified and is intended for consumer portable electronics-not automotive applications. While it operates from −40°C to +125°C, it lacks the extended reliability testing, failure analysis reporting, and traceability required for automotive qualification. For automotive-grade alternatives, consider onsemi's EMI7204MUTAG or NUP4105MR6T1G, which carry AEC-Q200 certification and are explicitly validated for infotainment and ADAS subsystems.
EMI1051FCT5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- 3-XFDFN
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 2
- Voltage - Reverse Standoff (Typ):
- 5.5V (Max)
- Voltage - Breakdown (Min):
- 6.1V
- Voltage - Clamping (Max) @ Ipp:
- 10V
- Current - Peak Pulse (10/1000µs):
- 22.5A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 80pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 3-DSN (0.76x0.34)
EMI1051FCT5G FAQ
1.How can I place an order for EMI1051FCT5G through Aetrix?
Please submit a Request for Quotation (RFQ) for EMI1051FCT5G 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 EMI1051FCT5G reliable?
The price and inventory of EMI1051FCT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EMI1051FCT5G is usually 5 days.
3.What payment methods are accepted for EMI1051FCT5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EMI1051FCT5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for EMI1051FCT5G?
EMI1051FCT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your EMI1051FCT5G 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 EMI1051FCT5G?
For technical support, including EMI1051FCT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EMI1051FCT5G requirements.
6.How does Aetrix verify that EMI1051FCT5G is sourced from the original manufacturer or authorized distributors?
All EMI1051FCT5G 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 EMI1051FCT5G meets industry standards.
7.What is the process for return or replacement of EMI1051FCT5G?
All EMI1051FCT5G units undergo pre-shipment inspection (PSI). If there is an issue with EMI1051FCT5G, 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 EMI1051FCT5G part is unused and in its original packaging.
Return procedure for EMI1051FCT5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
EMI1051FCT5G Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
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