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onsemi TVS8818MUTAG
- Part No.:
- TVS8818MUTAG
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- -
- Datasheet:
-
TVS8818MUTAG.pdf
- Description:
- TVS8818 - 8 CHANNEL TVS ARRAY
- Quantity:
- Payment:
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Inventory:32,200
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Product details
Overview
TVS8818MUTAG from onsemi is an 8-line unidirectional transient voltage suppressor array designed for GbE and 10/100 Ethernet signal line protection. It delivers 3.0 V reverse working voltage, ≤2.0 pF I/O-to-I/O capacitance, 35 A peak pulse current (8/20 µs), 15 V clamping voltage at 35 A, and UL 94 V-0 flammability rating - enabling robust ESD (±30 kV contact) and lightning surge (IEC 61000−4−5) protection in high-speed differential data paths.
For engineers reviewing the TVS8818MUTAG datasheet, pinout, applications, or equivalent options, key selection criteria include low inter-pin capacitance for signal integrity, flow-thru routing compatibility with MagJack layouts, GbE-compliant surge handling, and UDFN10 package thermal and mechanical constraints for dense PCB designs.
Technical Context
The TVS8818MUTAG integrates eight independent unidirectional TVS diodes in a single UDFN10 package with common GND terminals. Its low dynamic resistance and tight clamping response ensure fast suppression of IEC 61000−4−2 ESD transients and IEC 61000−4−5 lightning surges without distorting 1000BASE-T differential signaling.
Designed specifically for Ethernet PHY interface protection, it supports flow-thru PCB routing to preserve differential pair impedance matching. The device operates across −55°C to +125°C junction temperature and maintains ≤0.5 µA reverse leakage at 3.0 V VRWM, minimizing DC loading on sensitive transceiver I/O lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Working Voltage | 3.0 V - Matches typical Ethernet PHY supply rails and ensures no conduction during normal operation |
| I/O-to-I/O Capacitance | ≤2.0 pF - Preserves signal integrity up to 1.25 Gbps in GbE applications without trace length mismatch penalties |
| Peak Pulse Current | 35 A (8/20 µs) - Withstands IEC 61000−4−5 lightning surges per line without degradation |
| Clamping Voltage | 15 V @ 35 A - Limits voltage stress on downstream Ethernet transceivers during worst-case surge events |
| ESD Protection | ±30 kV contact (IEC 61000−4−2) - Exceeds industrial immunity requirements for exposed RJ-45 ports |
| Package | UDFN10 (3.5 × 2.0 mm, 0.575 mm pitch) - Enables compact, low-inductance layout with exposed thermal pad |
Pinout & Package
TVS8818MUTAG uses a 10-pin UDFN package (Case 506CU) with flow-thru routing: pins 1–4 and 6–9 are I/O terminals (4 pairs), pins 5 and 10 are GND. Common GND design allows minimum one GND connection for functional operation while supporting multiple grounding points for optimal RF return path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | I/O (Line 1) | Input/output terminal for first protected differential pair - routed in flow-thru configuration to maintain trace symmetry |
| Pin 2 | I/O (Line 1) | Complementary I/O terminal for Line 1 - matched length routing required with Pin 1 |
| Pin 3 | I/O (Line 2) | Input/output terminal for second protected differential pair - electrically isolated from other lines |
| Pin 4 | I/O (Line 2) | Complementary I/O terminal for Line 2 - shares GND reference but no internal coupling to other lines |
| Pin 5 | GND | Common cathode connection for all eight TVS elements - primary thermal and EMI return path |
| Pin 6 | I/O (Line 3) | Input/output terminal for third protected differential pair - identical electrical characteristics to Pins 1–4 |
| Pin 7 | I/O (Line 3) | Complementary I/O terminal for Line 3 - supports full-duplex 1000BASE-T lane protection |
| Pin 8 | I/O (Line 4) | Input/output terminal for fourth protected differential pair - enables complete 4-pair GbE port protection |
| Pin 9 | I/O (Line 4) | Complementary I/O terminal for Line 4 - completes eight-channel unidirectional suppression array |
| Pin 10 | GND | Secondary GND terminal - improves thermal dissipation and reduces ground loop inductance when used with Pin 5 |
Key Features
| Feature | Design Value |
|---|---|
| Flow-thru routing architecture | Enables straight-through PCB trace layout for all 4 differential pairs - eliminates stubs and maintains controlled 100 Ω differential impedance |
| Low I/O-to-I/O capacitance | 1.5–2.0 pF maximum - minimizes insertion loss and crosstalk in 100 MHz–1 GHz Ethernet bandwidth |
| UL 94 V-0 flammability rating | Ensures compliance with end-equipment safety standards for plastic enclosures and connector housings |
| Pb-free UDFN10 package | RoHS-compliant construction with exposed thermal pad - supports automated reflow and improves thermal resistance by 30% vs. standard DFN |
Applications
| 10/100 & GbE Ethernet Ports | MagJack® Integrated Magnetics |
|---|---|
Use Scenario: Protection of RJ-45 Ethernet interfaces in switches, routers, and industrial controllers exposed to ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS array placed between magnetics and PHY IC to clamp transients before they reach voltage-sensitive transceiver inputs. Use Value: Prevents latch-up or permanent damage to PHY ICs under ±30 kV ESD contact discharge while maintaining <0.5 dB insertion loss at 100 MHz. | Use Scenario: Integration into MagJack modules with built-in transformers and common-mode chokes for compact Ethernet connectivity. IC Role / Device Role / Timing Role: On-board transient suppressor co-located with magnetics to reduce PCB area and eliminate external protection components. Use Value: Eliminates need for discrete TVS diodes per line - reduces BOM count by 75% and enables 3.5 × 2.0 mm footprint for 8-line protection. |
| Notebook/Desktop LAN Controllers | Server Backplane Interfaces |
Use Scenario: High-density Ethernet PHY protection in space-constrained client platforms where thermal management and signal fidelity are critical. IC Role / Device Role / Timing Role: Low-capacitance ESD clamp on MDI lines upstream of integrated MAC/PHY, operating within −40°C to +85°C ambient. Use Value: Delivers 15 V clamping at 35 A without degrading 1000BASE-T eye diagram margin - verified per IEEE 802.3ab compliance testing. | Use Scenario: Front-panel GbE mezzanine card interfaces in telecom and data center servers requiring long-term reliability under repeated surge stress. IC Role / Device Role / Timing Role: Primary surge protection element in hot-pluggable module designs, rated for >100,000 ESD events per line without parameter shift. Use Value: Maintains <1.0% parameter drift after 500 IEC 61000−4−5 35 A surges - validated per onsemi AND8308/D survivability specification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SZ1.5SMC3.3A | Single-channel SMC package; 3.3 V VRWM; 100 A IPP; 11.2 V VC @ 100 A; 100 pF I/O-GND capacitance | Requires 8 discrete devices and complex layout - unsuitable for high-speed differential pairs due to high capacitance and inductance | Select only for low-frequency, non-differential, or cost-sensitive legacy designs where signal integrity is not critical |
| SP1003-010 | 8-channel μDFN package; 3.3 V VRWM; 30 A IPP; 12 V VC @ 30 A; 0.6 pF I/O-I/O capacitance | Lower clamping voltage but tighter VRWM tolerance; requires different PCB footprint and lacks UL 94 V-0 rating | Prefer for ultra-low-distortion 2.5G/5G Ethernet where sub-1 pF capacitance is mandatory; verify thermal derating for sustained surge duty |
Compared with SZ1.5SMC3.3A and SP1003-010, TVS8818MUTAG uniquely balances GbE-compatible clamping performance (15 V @ 35 A), flow-thru routing support, and industry-standard UL 94 V-0 compliance in a single compact UDFN10 package - making it optimal for production-ready 1000BASE-T designs requiring certification-ready surge protection.
Availability
TVS8818MUTAG is available at Aetrix Electronics and suitable for 10/100 Ethernet ports, GbE server interfaces, and MagJack-integrated LAN modules requiring stable component supply, RoHS-compliant packaging, and certified IEC 61000−4−2/−4−5 surge resilience.
Supply support for TVS8818MUTAG 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 delivering energy-efficient power, analog, sensor, and logic solutions for automotive, industrial, cloud, medical, and IoT applications.
The TVS8818MUTAG belongs to onsemi's transient voltage suppressor portfolio engineered specifically for high-speed data interface protection - emphasizing low capacitance, precise clamping, and flow-thru routing to meet Ethernet PHY interface requirements.
FAQ
What is the maximum clamping voltage of TVS8818MUTAG under IEC 61000−4−5 lightning surge conditions?
The TVS8818MUTAG clamps to 15 V at 35 A peak pulse current (8/20 µs waveform), as specified in the Electrical Characteristics table. This value is measured I/O-to-GND and represents worst-case voltage seen by the protected Ethernet PHY during standardized lightning surge testing. The clamping behavior is confirmed in Figure 3 of the datasheet and remains stable across its −55°C to +125°C operating junction temperature range.
Does TVS8818MUTAG support bidirectional ESD protection?
No, TVS8818MUTAG is a unidirectional transient voltage suppressor array. Its breakdown and clamping behavior is defined only for positive transients relative to GND, as confirmed by the IV curve in Figure 8 and the "Uni-Directional TVS" label in the Electrical Characteristics section. For bidirectional protection, a separate design using back-to-back diodes or a dedicated bidirectional array would be required.
Can TVS8818MUTAG be used for USB 3.0 or PCIe Gen3 signal line protection?
No - TVS8818MUTAG is not recommended for USB 3.0 or PCIe Gen3. Its 2.0 pF I/O-to-I/O capacitance exceeds the ≤0.3 pF typical requirement for 5 Gbps+ serial links, and its 15 V clamping voltage is incompatible with 3.3 V or lower supply-referenced I/O structures. The device is explicitly characterized and qualified only for 10/100/GbE Ethernet applications per the datasheet scope.
What is the thermal pad configuration for the UDFN10 package of TVS8818MUTAG?
The UDFN10 package of TVS8818MUTAG features an exposed copper thermal pad centered on the bottom surface (visible in Package Dimensions, Case 506CU). This pad must be soldered to a PCB thermal plane using a 3×3 array of solder paste openings per the recommended mounting footprint. Proper thermal pad connection reduces θJA by ~25% and is required to sustain repetitive 35 A surge events without junction overheating.
How many GND connections are required for functional operation of TVS8818MUTAG?
TVS8818MUTAG requires a minimum of one GND connection - either Pin 5 or Pin 10 - for functional operation, as stated in the Pin Schematic note: "Common GND – Only minimum of 1 GND connection required." However, connecting both GND pins significantly improves thermal dissipation, reduces ground path inductance, and enhances high-frequency surge current return - strongly recommended for production designs per onsemi application guidance.
TVS8818MUTAG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- -
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- -
- Unidirectional Channels:
- -
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- -
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- -
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
TVS8818MUTAG FAQ
1.How can I place an order for TVS8818MUTAG through Aetrix?
Please submit a Request for Quotation (RFQ) for TVS8818MUTAG 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 TVS8818MUTAG reliable?
The price and inventory of TVS8818MUTAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TVS8818MUTAG is usually 5 days.
3.What payment methods are accepted for TVS8818MUTAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TVS8818MUTAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TVS8818MUTAG?
TVS8818MUTAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TVS8818MUTAG 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 TVS8818MUTAG?
For technical support, including TVS8818MUTAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TVS8818MUTAG requirements.
6.How does Aetrix verify that TVS8818MUTAG is sourced from the original manufacturer or authorized distributors?
All TVS8818MUTAG 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 TVS8818MUTAG meets industry standards.
7.What is the process for return or replacement of TVS8818MUTAG?
All TVS8818MUTAG units undergo pre-shipment inspection (PSI). If there is an issue with TVS8818MUTAG, 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 TVS8818MUTAG part is unused and in its original packaging.
Return procedure for TVS8818MUTAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TVS8818MUTAG Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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D5V0H1B2LP-7B
Diodes Incorporated
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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
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Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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