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onsemi ESDL2031MX4T5G
- Part No.:
- ESDL2031MX4T5G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- 0201 (0603 Metric)
- Datasheet:
-
ESDL2031MX4T5G.pdf
- Description:
- ENCAPSULATED DSN
- Quantity:
- Payment:
- Shipping:
Inventory:60,501
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Product details
Overview
ESDL2031MX4T5G from onsemi is an ultra-low-capacitance ESD protection diode designed for high-speed data line protection in USB 3.x, HDMI 2.1, and PCIe interfaces. It features 0.40 pF typical junction capacitance, ±30 kV IEC 61000−4−2 contact/air ESD rating, and 8.0 V clamping voltage at 9.75 A peak pulse current.
For engineers reviewing the ESDL2031MX4T5G datasheet, pinout, applications, or equivalent options, key selection criteria include sub-0.55 pF capacitance, low dynamic resistance (0.22 Ω), I/O-to-GND topology, and X4DFN2 (0201) package compatibility with high-density PCB layouts for 10+ Gb/s serial links.
Technical Context
The ESDL2031MX4T5G implements a bidirectional TVS diode structure optimized for signal integrity preservation in differential high-speed interfaces. Its 0.22 Ω dynamic resistance and 5.1–8.5 V breakdown range enable fast turn-on and stable clamping during ±8 kV IEC 61000−4−2 transients.
Designed specifically for I/O-to-GND protection, it avoids series impedance in signal paths and maintains insertion loss below −0.65 dB at 6 GHz (HDMI 2.1 fundamental), verified via TLP characterization per ANSI/ESD STM5.5.1 with 100 ns pulses and 1 ns rise time.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Capacitance | 0.40 pF typ @ 0 V, 1 MHz - preserves signal integrity up to 12 Gb/s (HDMI 2.1) |
| Clamping Voltage | 8.0 V @ 9.75 A, 8/20 µs - limits transient overvoltage to safe levels for 3.3 V and 5 V I/O rails |
| ESD Rating | ±30 kV contact & air per IEC 61000−4−2 Level 4 - exceeds industrial immunity requirements |
| Working Voltage | 4.0 V VRWM - supports common high-speed interface DC bias points |
| Dynamic Resistance | 0.22 Ω - ensures rapid voltage clamping with minimal overshoot during fast ESD events |
| Breakdown Voltage | 5.1–8.5 V @ 1 mA - provides margin above 4.0 V operating rail while enabling robust turn-on |
| Junction Temp Range | −55 °C to +125 °C - qualified for automotive infotainment and industrial edge computing environments |
Pinout & Package
X4DFN2 (0201) surface-mount package: 0.60 mm × 0.30 mm × 0.20 mm body, 0.36 mm pitch, single-row 2-terminal configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | I/O Line Anode | Bidirectional ESD path from protected data line to ground; connects to high-speed signal trace |
| Pin 2 | GND Cathode | Low-inductance return path to system ground plane; requires direct thermal/via connection |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low capacitance | 0.40 pF typ enables <−0.23 dB insertion loss at 2.5 GHz (USB 3.0), minimizing eye diagram degradation |
| Low clamping voltage | 8.0 V at 9.75 A ensures protected ICs see no more than 8 V during worst-case 8/20 µs surges |
| IEC 61000−4−2 Level 4 compliance | ±30 kV contact/air rating meets stringent end-equipment EMI immunity standards without derating |
| Pb-free & RoHS compliant | Halogen-free/BFR-free construction satisfies IPC-J-STD-020 moisture sensitivity level 1 (MSL1) handling requirements |
Applications
| USB 3.x Interface Protection | HDMI 2.1 Channel Protection |
|---|---|
Use Scenario: Protecting SuperSpeed TX/RX differential pairs in laptop docking stations and external SSD enclosures against user-handling ESD. IC Role / Device Role / Timing Role: Bidirectional I/O-to-GND transient voltage suppressor placed within 3 mm of connector, preserving 5 Gb/s signal fidelity. Use Value: 0.40 pF capacitance prevents >1% rise-time degradation; −0.23 dB insertion loss at 2.5 GHz maintains USB 3.0 eye opening. | Use Scenario: Shielding TMDS clock and data channels in 4K/8K AV receivers and gaming monitors from cable-discharge events. IC Role / Device Role / Timing Role: Per-channel ESD clamp on each of four TMDS pairs, mounted adjacent to HDMI Type A receptacle. Use Value: Clamps ±8 kV contact discharge to ≤8.0 V within 1 ns, preventing latch-up in HDMI PHY receivers operating at 6 GHz fundamental. |
| PCIe Gen3/Gen4 Lane Protection | MHL™ 2.0 Mobile Link Protection |
Use Scenario: Safeguarding PCIe 8 GT/s differential lanes in embedded AI accelerators and NVMe SSD controllers from board-level ESD coupling. IC Role / Device Role / Timing Role: One ESDL2031MX4T5G per lane (TX+/TX−, RX+/RX−), placed before AC-coupling capacitors. Use Value: 0.22 Ω RDYN minimizes clamping delay skew between lanes; 0.55 pF max capacitance avoids PCIe Gen4 jitter budget violation. | Use Scenario: Protecting MHL 2.0 superMHL sideband channel (SBC) and main link in smartphone-to-display adapters. IC Role / Device Role / Timing Role: I/O-to-GND ESD clamp on each high-speed MHL differential pair, routed with matched length to preserve 6 Gb/s timing alignment. Use Value: −0.53 dB insertion loss at 5 GHz (MHL 2.0 fundamental) maintains SBC signal integrity and link training reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD4E05U06DQAR | 0.5 pF typ capacitance; 5.5 V clamping @ 8 A; quad-channel in DQFN package | Requires multi-line protection in single package; higher layout density but less per-channel flexibility | Select when protecting ≥2 differential pairs with shared ground and space-constrained routing |
| SP1002-01UTG | 0.35 pF typ capacitance; 6.5 V clamping @ 8 A; 2-pin X1DFN package (0201) | Slightly lower capacitance but narrower VRWM (3.3 V); not rated for ±30 kV contact | Prefer for 3.3 V-only systems where sub-0.4 pF is critical and IEC Level 4 is not mandated |
Compared with TPD4E05U06DQAR and SP1002-01UTG, the ESDL2031MX4T5G delivers optimal balance of ±30 kV robustness, 0.40 pF capacitance, and 4.0 V VRWM-making it the preferred choice for mixed-voltage (3.3 V/5 V) high-speed interfaces requiring full IEC Level 4 compliance without sacrificing signal integrity.
Availability
ESDL2031MX4T5G is available at Aetrix Electronics and suitable for USB 3.x host controllers, HDMI 2.1 source devices, and PCIe Gen4 endpoint designs requiring stable component supply across production lifecycles.
Supply support for ESDL2031MX4T5G 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 (Semiconductor Components Industries, LLC) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The ESDL2031MX4T5G belongs to onsemi's ultra-low-capacitance ESD protection diode family, engineered specifically for preserving signal integrity in 5–12 Gb/s serial data links while meeting IEC 61000−4−2 Level 4 immunity requirements.
FAQ
What is the maximum operating temperature range for the ESDL2031MX4T5G?
The ESDL2031MX4T5G is rated for an operating junction temperature range of −55 °C to +125 °C. This specification allows the device to function reliably in automotive under-hood modules, industrial gateways, and high-density compute platforms where ambient temperatures exceed 85 °C. The ESDL2031MX4T5G maintains its 0.40 pF capacitance and 8.0 V clamping performance across this full range, as validated per JEDEC JESD22-A104 thermal cycling tests.
Does the ESDL2031MX4T5G support bidirectional ESD protection?
Yes, the ESDL2031MX4T5G provides symmetrical bidirectional protection between I/O and GND. Its schematic shows a back-to-back diode configuration that clamps both positive and negative transients equally, delivering identical ±30 kV IEC 61000−4−2 contact/air ratings. This makes the ESDL2031MX4T5G suitable for AC-coupled differential signals like USB 3.x and PCIe, where polarity reversal occurs during normal operation.
What is the recommended PCB layout practice for ESDL2031MX4T5G?
Place the ESDL2031MX4T5G within 3 mm of the protected connector, with Pin 2 (GND) connected directly to a solid ground plane using ≥2 thermal vias. Keep traces to Pin 1 (I/O) short and impedance-controlled (e.g., 90 Ω differential). Avoid stubs or right-angle bends. The ESDL2031MX4T5G's 0.60 mm × 0.30 mm X4DFN2 footprint supports these constraints while minimizing parasitic inductance that could degrade clamping response.
How does the ESDL2031MX4T5G compare to standard TVS diodes in high-speed applications?
Unlike general-purpose TVS diodes with 1–5 pF capacitance, the ESDL2031MX4T5G's 0.40 pF typical capacitance reduces high-frequency signal attenuation and phase distortion. Its 0.22 Ω dynamic resistance enables faster voltage clamping-critical for preserving eye diagrams in 10+ Gb/s links. The ESDL2031MX4T5G is characterized using TLP testing per ANSI/ESD STM5.5.1, ensuring correlation to real-world ESD events, whereas many standard TVS diodes lack such validation for data-line use.
Is the ESDL2031MX4T5G compatible with lead-free reflow soldering processes?
Yes, the ESDL2031MX4T5G is Pb-free and qualified for lead-free reflow per J-STD-020. Its maximum lead solder temperature is 260 °C for 10 seconds, matching standard SnAgCu profile peak temperatures. The device's X4DFN2 package has been tested for intermetallic growth and thermal fatigue resistance under repeated reflow cycles, and the ESDL2031MX4T5G maintains its 0.40 pF capacitance and ±30 kV ESD rating post-reflow.
ESDL2031MX4T5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- 0201 (0603 Metric)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 4V (Max)
- Voltage - Breakdown (Min):
- 5.1V
- Voltage - Clamping (Max) @ Ipp:
- 8V
- Current - Peak Pulse (10/1000µs):
- 9.75A (8/20µs)
- Power - Peak Pulse:
- 72W
- Power Line Protection:
- No
- Applications:
- HDMI, USB
- Capacitance @ Frequency:
- 0.4pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 2-DFN (0.6x0.3)
ESDL2031MX4T5G FAQ
1.How can I place an order for ESDL2031MX4T5G through Aetrix?
Please submit a Request for Quotation (RFQ) for ESDL2031MX4T5G 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 ESDL2031MX4T5G reliable?
The price and inventory of ESDL2031MX4T5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESDL2031MX4T5G is usually 5 days.
3.What payment methods are accepted for ESDL2031MX4T5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESDL2031MX4T5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESDL2031MX4T5G?
ESDL2031MX4T5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESDL2031MX4T5G 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 ESDL2031MX4T5G?
For technical support, including ESDL2031MX4T5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESDL2031MX4T5G requirements.
6.How does Aetrix verify that ESDL2031MX4T5G is sourced from the original manufacturer or authorized distributors?
All ESDL2031MX4T5G 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 ESDL2031MX4T5G meets industry standards.
7.What is the process for return or replacement of ESDL2031MX4T5G?
All ESDL2031MX4T5G units undergo pre-shipment inspection (PSI). If there is an issue with ESDL2031MX4T5G, 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 ESDL2031MX4T5G part is unused and in its original packaging.
Return procedure for ESDL2031MX4T5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ESDL2031MX4T5G Tags
-
ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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