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Diodes Incorporated D3V3L4U8MR-13
- Part No.:
- D3V3L4U8MR-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
D3V3L4U8MR-13.pdf
- Description:
- DATALINE PROTECTION PP SO-8 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:4,797
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Product details
Overview
D3V3L4U8MR from Diodes Incorporated is a dual-channel, bidirectional ESD protection diode array in SO-8 package, rated for 3.3V reverse standoff voltage, 100A peak pulse current (8/20µs), and 5pF typical line-to-GND capacitance-designed to safeguard Ethernet PHY interfaces against ±30kV contact/air ESD per IEC 61000-4-2.
For engineers reviewing the D3V3L4U8MR datasheet, D3V3L4U8MR pinout, D3V3L4U8MR application, or D3V3L4U8MR equivalent, key selection criteria include clamping voltage under 11.5V at 50A, low-leakage operation (<1μA at 3.3V), and dual-line-pair protection architecture compatible with 10/100/1000BASE-T signal integrity requirements.
Technical Context
This device implements a snap-back silicon avalanche structure with VPT = 3.5V and VSB = 3.3V, enabling fast triggering below the protected IC's absolute maximum rating. Its bidirectional configuration supports both line-to-GND and line-to-line transient suppression without polarity constraints.
It delivers 2400W peak pulse power handling (8/20µs) while maintaining ≤12pF max line-to-GND capacitance and ≤6pF max line-to-line capacitance-critical for preserving signal rise/fall times in high-speed differential data links up to 1Gbps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 3.3V - Ensures no conduction during normal 3.3V rail operation, preserving signal integrity |
| Peak Pulse Current | 100A (8/20µs) - Withstands lightning surge events per IEC 61000-4-5 Level 4 |
| Clamping Voltage | 11.5V @ 50A - Limits voltage seen by downstream PHY IC to safe levels during ESD strike |
| Junction Capacitance | 5pF typ (line-to-GND) - Minimizes signal distortion on 1000BASE-T differential pairs |
| ESD Rating | ±30kV contact / ±30kV air - Fully compliant with IEC 61000-4-2 Level 4 |
| Operating Temp Range | −55°C to +125°C - Supports industrial and extended-temperature Ethernet equipment |
Pinout & Package
Package: SO-8, surface-mount, lead-free, RoHS-compliant molded plastic housing with matte tin-plated copper leadframe and UL 94V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IO1 Anode | Input/output terminal for first protected line pair (e.g., TX+/TX−) |
| 2 | GND | Common ground reference for clamping path |
| 3 | IO2 Cathode | Second protected line terminal (e.g., RX+) |
| 4 | GND | Redundant ground connection for low-inductance return path |
| 5 | IO2 Anode | Second protected line terminal (e.g., RX−) |
| 6 | GND | Ground tie for internal common-cathode structure |
| 7 | IO1 Cathode | First protected line terminal (e.g., TX+) |
| 8 | GND | Primary ground pin with thermal pad connection capability |
Key Features
| Feature | Design Value |
|---|---|
| Dual-line-pair protection | Simultaneous safeguarding of two independent differential pairs (e.g., TX and RX) in single SO-8 footprint |
| Low clamping voltage | 11.5V max at 50A ensures protected PHY IC remains within safe operating area during ESD event |
| Sub-6pF line-to-line capacitance | Preserves signal integrity and eye diagram margin for Gigabit Ethernet applications |
| IEC 61000-4-5 Level 4 compliance | Validated 100A lightning surge immunity enables deployment in outdoor or unshielded cabling environments |
Applications
| Ethernet PHY Interface Protection | Set-Top Box LAN Port |
|---|---|
Use Scenario: Protecting 1000BASE-T transceivers on network interface cards from ESD events induced via RJ-45 connectors. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed between magnetics and PHY IC, clamping surges before they reach sensitive analog front-end. Use Value: Prevents latch-up or permanent damage to Ethernet PHY ICs while maintaining <100ps timing skew across differential pairs. | Use Scenario: Securing Ethernet ports on consumer set-top boxes exposed to frequent user-handled cable insertion/removal. IC Role / Device Role / Timing Role: ESD shunt element on each twisted-pair lane, referenced to chassis ground through low-inductance GND pins. Use Value: Eliminates field returns due to ESD-induced packet loss or PHY reset, validated to pass ±30kV contact discharge testing. |
| ISDN Terminal Equipment | Industrial Control Network Node |
Use Scenario: Hardening S/T interface lines in ISDN terminal adapters against electrostatic discharge during plug-in operations. IC Role / Device Role / Timing Role: Low-capacitance clamp on balanced 2B1Q signaling lines, preserving signal amplitude and jitter performance. Use Value: Maintains BER <10⁻¹² over full temperature range while meeting EN 300 386 Class A immunity requirements. | Use Scenario: Protecting Ethernet-enabled PLC modules installed in factory-floor control cabinets with unshielded cable runs. IC Role / Device Role / Timing Role: Surge suppression element on RJ-45 port, coordinated with upstream TVS and common-mode chokes. Use Value: Enables continuous uptime in electrically noisy environments by surviving repeated 100A lightning surges per IEC 61000-4-5. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SZ1.5SM3.3A-Q | Unidirectional, 3.3V VBR, 1500W PPP, higher CT (15pF min) | Requires external biasing for bidirectional use; unsuitable for AC-coupled differential lines | Select only if single-ended signal paths and lower cost outweigh capacitance penalty |
| TPD2EUSB30DR | 3-channel, 0.8pF CT, but rated only to 5A IPP and lacks IEC 61000-4-5 compliance | Targeted at USB 3.0, not Ethernet; insufficient for lightning-level surge events | Prefer for ultra-high-speed serial links where sub-1pF capacitance is mandatory and surge threat is ESD-only |
Compared with SZ1.5SM3.3A-Q and TPD2EUSB30DR, D3V3L4U8MR uniquely balances 100A lightning robustness, bidirectional operation, and 5pF capacitance-making it the only SO-8 option qualified for full IEC 61000-4-2/4-5 compliance in Gigabit Ethernet line protection.
Availability
D3V3L4U8MR is available at Aetrix Electronics and suitable for 10/100/1000 Ethernet interfaces, set-top box LAN ports, ISDN terminal equipment, and industrial control network nodes requiring stable component supply and long-term lifecycle assurance.
Supply support for D3V3L4U8MR 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and integrated circuits, specializing in high-performance protection, signal integrity, and power management solutions for industrial, computing, and communications markets.
D3V3L4U8MR belongs to Diodes' ESD Protection Diodes product line, engineered specifically for high-speed data line hardening-emphasizing low capacitance, fast response, and multi-standard compliance in compact surface-mount packages.
FAQ
What is the maximum clamping voltage for D3V3L4U8MR at 100A?
The clamping voltage is 16V when subjected to 100A (8/20µs) transient current from any line to GND, as specified in the Electrical Characteristics table. This value ensures downstream PHY ICs remain within their absolute maximum ratings during worst-case lightning surge events.
Does D3V3L4U8MR support line-to-line ESD protection?
Yes-it provides bidirectional line-to-line clamping with a maximum clamping voltage of 24V at 100A (8/20µs), enabling protection of differential pairs without requiring external series resistors or polarity-aware layout.
Is D3V3L4U8MR qualified for automotive applications?
No-this part is not AEC-Q200 qualified. Diodes offers automotive-grade equivalents with Q-suffix markings (e.g., D3V3L4U8MQR) that undergo PPAP, IATF 16949 manufacturing, and extended temperature validation for vehicle networking systems.
How many protected channels does D3V3L4U8MR provide?
D3V3L4U8MR protects two independent line pairs using an internal dual-common-cathode structure-pins 1/7 serve one pair (IO1), pins 3/5 serve the second (IO2), with four dedicated GND pins (2/4/6/8) ensuring low-inductance return paths for both channels.
D3V3L4U8MR-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 2
- Voltage - Reverse Standoff (Typ):
- 3.3V (Max)
- Voltage - Breakdown (Min):
- 3.5V
- Voltage - Clamping (Max) @ Ipp:
- 16V
- Current - Peak Pulse (10/1000µs):
- 100A (8/20µs)
- Power - Peak Pulse:
- 2400W (2.4kW)
- Power Line Protection:
- No
- Applications:
- Ethernet, Telecom
- Capacitance @ Frequency:
- 5pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
D3V3L4U8MR-13 FAQ
1.How can I place an order for D3V3L4U8MR-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for D3V3L4U8MR-13 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 D3V3L4U8MR-13 reliable?
The price and inventory of D3V3L4U8MR-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D3V3L4U8MR-13 is usually 5 days.
3.What payment methods are accepted for D3V3L4U8MR-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D3V3L4U8MR-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for D3V3L4U8MR-13?
D3V3L4U8MR-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your D3V3L4U8MR-13 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 D3V3L4U8MR-13?
For technical support, including D3V3L4U8MR-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D3V3L4U8MR-13 requirements.
6.How does Aetrix verify that D3V3L4U8MR-13 is sourced from the original manufacturer or authorized distributors?
All D3V3L4U8MR-13 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 D3V3L4U8MR-13 meets industry standards.
7.What is the process for return or replacement of D3V3L4U8MR-13?
All D3V3L4U8MR-13 units undergo pre-shipment inspection (PSI). If there is an issue with D3V3L4U8MR-13, 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 D3V3L4U8MR-13 part is unused and in its original packaging.
Return procedure for D3V3L4U8MR-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
D3V3L4U8MR-13 Tags
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Diodes Incorporated
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