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Vishay General Semiconductor - Diodes Division SMF7V0A-E3-08
- Part No.:
- SMF7V0A-E3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF7V0A-E3-08.pdf
- Description:
- TVS DIODE 7VWM 12VC SMF
- Quantity:
- Payment:
- Shipping:
Inventory:26,802
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Product details
Overview
SMF7V0A-E3-08 from Vishay Semiconductors is a unidirectional surface-mount ESD protection diode in the SMF (DO-219AB) package, designed for low-capacitance transient voltage suppression in high-speed data lines. It features a 7.0 V stand-off voltage (VRWM), 7.78–8.6 V reverse breakdown (VBR), 12 V maximum clamping voltage at 16.7 A peak pulse current, and 843 pF typical junction capacitance at 0 V - optimized for USB 2.0, HDMI, and industrial sensor interfaces.
For engineers reviewing the SMF7V0A-E3-08 datasheet, SMF7V0A-E3-08 pinout, SMF7V0A-E3-08 application, or SMF7V0A-E3-08 equivalent, key selection criteria include clamping performance under IEC 61000-4-2 ±30 kV contact discharge, AEC-Q101 qualification status, SOD-123W-compatible footprint, and low incremental surge resistance for fast response in automotive infotainment and industrial I/O protection.
Technical Context
This device operates as a single-channel unidirectional TVS diode with cathode-anode polarity, leveraging silicon avalanche technology to clamp transients before downstream ICs are damaged. Its 10/1000 μs waveform rating of 200 W peak pulse power and 1000 W rating at 8/20 μs (IEC 61000-4-5) supports robust system-level surge immunity.
The SMF7V0A-E3-08 integrates "Low Noise" fast-response design with <1 ns rise time (per IEC 61000-4-2), enabling protection of high-bandwidth analog and digital signals without signal integrity degradation. Its MSL level 1 moisture sensitivity and 260 °C peak reflow compatibility ensure reliable automated assembly in high-volume manufacturing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 7.0 V - maximum continuous reverse operating voltage before leakage exceeds 3 μA; defines safe operating margin for 5 V or 3.3 V bus protection. |
| Reverse Breakdown (VBR) | 7.78–8.6 V at 10 mA - tight tolerance ensures predictable turn-on during ESD events without premature conduction. |
| Clamping Voltage (VC) | 12.0 V max at IPPM = 16.7 A - limits voltage seen by protected IC to safe levels during 10/1000 μs surges. |
| Junction Capacitance (CD) | 843 pF at 0 V, 1 MHz - low enough for USB 2.0 (480 Mbps) but not suitable for USB 3.x or PCIe Gen3+. |
| ESD Immunity | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - meets highest industrial and automotive ESD stress requirements. |
| Package | DO-219AB (SOD-123W-compatible) - 3.9 × 1.9 × 1.08 mm low-profile outline enables dense PCB layouts and automated placement. |
| AEC-Q101 Qualified | Yes - qualified for automotive applications including infotainment, body control modules, and ADAS sensor interfaces. |
Pinout & Package
SMF7V0A-E3-08 uses the DO-219AB (SMF) surface-mount package: 2-terminal, cathode-marked, single-diode configuration. Dimensions: 3.9 mm length × 1.9 mm width × 1.08 mm height. Compatible with SOD-123W, SOD-123F, and SOD-123FL footprints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Input/line side connection | Connected to signal line being protected; carries surge current into the diode during clamping. |
| Cathode (bar-marked end) | Ground reference node | Connected to system ground or low-impedance return path; establishes clamping reference and enables fast discharge. |
Key Features
| Feature | Design Value |
|---|---|
| 200 W peak pulse power (10/1000 μs) | Supports repeated ESD strikes in industrial environments without degradation; validated per IEC 61000-4-2. |
| ±30 kV ESD immunity (contact/air) | Exceeds IEC 61000-4-2 Level 4, eliminating need for external spark gaps or multi-stage protection in many designs. |
| AEC-Q101 qualification | Validated for automotive temperature range (−65 °C to +175 °C) and mechanical stress, enabling use in under-hood and infotainment systems. |
| Low-profile DO-219AB package | Enables routing of high-speed traces beneath the device; reduces parasitic inductance vs. larger packages like SMA or SMB. |
| "Low Noise" fast response | Sub-nanosecond turn-on minimizes overshoot on protected lines, preserving signal integrity in USB and HDMI applications. |
Applications
| USB 2.0 Data Lines | HDMI Interface Protection |
|---|---|
Use Scenario: Protecting D+ and D− differential pairs in portable media players and docking stations against ESD during cable insertion. IC Role / Device Role / Timing Role: Unidirectional clamping diode placed between each data line and chassis ground to shunt ESD energy away from USB transceiver ICs. Use Value: 843 pF capacitance avoids signal distortion at 480 Mbps; 12 V clamping prevents damage to 3.3 V tolerant PHY inputs. | Use Scenario: Safeguarding TMDS clock and data channels in set-top boxes and AV receivers exposed to user-handling ESD. IC Role / Device Role / Timing Role: Single-channel TVS diode connected from each TMDS line to ground, leveraging low capacitance to maintain eye diagram integrity. Use Value: Sub-1 ns response preserves HDMI 1.4 timing margins; ±30 kV rating covers worst-case human-body ESD events. |
| Automotive Infotainment | Industrial Sensor I/O |
Use Scenario: Protecting UART, I²C, and analog audio lines in head units subjected to harsh automotive ESD environments per ISO 10605. IC Role / Device Role / Timing Role: AEC-Q101-qualified unidirectional TVS providing primary-level protection ahead of secondary filtering on low-speed buses. Use Value: −65 °C to +175 °C operation ensures reliability across engine bay and cabin temperature extremes; DO-219AB footprint fits tight board space. | Use Scenario: Shielding 4–20 mA loop inputs and RS-485 transceivers in PLC modules from field-induced transients and operator ESD. IC Role / Device Role / Timing Role: Standoff-clamp TVS diode placed at connector entry point to divert surge energy before reaching precision ADC or isolator stages. Use Value: 7.0 V VRWM matches common 5 V sensor supply rails; 200 W pulse rating handles repetitive industrial surges without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.0A | Higher clamping voltage (12.5 V), larger SMA package (4.5 × 2.7 × 2.2 mm), 1000 W 8/20 μs rating | Better suited for higher-energy surges (e.g., AC mains coupling); less ideal for high-speed data due to larger parasitics | Select when surge energy exceeds 200 W or board space allows larger footprint. |
| TPD2E001DRYR | Bi-directional dual-channel array, 12 pF capacitance, 5 V VRWM, no AEC-Q101 qualification | Optimized for ultra-high-speed USB 3.0/DisplayPort; lacks automotive qualification and higher-voltage standoff | Choose for low-capacitance, multi-line protection where VRWM ≤ 5 V and AEC-Q101 is not required. |
Compared with SMAJ7.0A and TPD2E001DRYR, the SMF7V0A-E3-08 delivers optimal balance of compact size, automotive qualification, and 7 V standoff for cost-sensitive industrial and automotive data-line protection - without sacrificing ESD robustness or manufacturability.
Availability
SMF7V0A-E3-08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, automotive infotainment systems, and industrial sensor I/O requiring stable component supply and long-term lifecycle support.
Supply support for SMF7V0A-E3-08 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
Vishay Intertechnology is a global semiconductor manufacturer specializing in discrete components, passive elements, and sensors, with leadership in power management, signal conditioning, and circuit protection technologies.
The SMF series is part of Vishay's eSMP® family of surface-mount TVS diodes, engineered specifically for high-reliability ESD and surge protection in automotive, industrial, and consumer electronics where space, speed, and qualification matter.
FAQ
What is the clamping voltage of the SMF7V0A-E3-08 at its rated peak pulse current?
The SMF7V0A-E3-08 has a maximum clamping voltage (VC) of 12.0 V at its rated peak pulse current (IPPM) of 16.7 A under 10/1000 μs waveform conditions. This value is measured per standard test methods in the Vishay datasheet (Doc. #85881, Rev. 2.4) and ensures downstream ICs see limited overvoltage during ESD events. The SMF7V0A-E3-08 maintains this clamping performance across its full operating temperature range.
Is the SMF7V0A-E3-08 qualified to AEC-Q101 for automotive use?
Yes, the SMF7V0A-E3-08 is AEC-Q101 qualified, as confirmed in Vishay's official documentation (Rev. 2.4, July 2023). It meets stress tests for temperature cycling, humidity, mechanical shock, and ESD per AEC-Q101 requirements, supporting deployment in automotive infotainment, body electronics, and ADAS sensor interfaces. The SMF7V0A-E3-08 is rated for operation from −65 °C to +175 °C, covering full automotive ambient and junction temperature ranges.
What is the junction capacitance of the SMF7V0A-E3-08 and how does it affect high-speed signal lines?
The SMF7V0A-E3-08 exhibits 843 pF typical junction capacitance at 0 V and 1 MHz, as specified in the Vishay datasheet. This value is appropriate for protecting USB 2.0 (480 Mbps) and slower interfaces but may introduce unacceptable signal attenuation or jitter on faster links like USB 3.0 or HDMI 2.0. For such applications, lower-capacitance alternatives should be evaluated. The SMF7V0A-E3-08's capacitance remains stable across bias voltage, supporting consistent clamping behavior.
Does the SMF7V0A-E3-08 have polarity marking, and how is it oriented on the PCB?
Yes, the SMF7V0A-E3-08 features a cathode bar marking on one end of the DO-219AB package, visible in top view. During PCB layout, the marked (cathode) terminal must connect to ground or the lowest-potential reference node, while the unmarked (anode) terminal connects to the signal line being protected. This unidirectional orientation is critical for proper clamping function - reverse installation renders the device ineffective. The SMF7V0A-E3-08's tape-and-reel orientation follows standard carrier direction per Vishay's packaging drawing (S8-V-3717.02).
What is the peak pulse power rating of the SMF7V0A-E3-08 for different surge waveforms?
The SMF7V0A-E3-08 is rated for 200 W peak pulse power with a 10/1000 μs waveform (IEC 61000-4-2) and 1000 W with an 8/20 μs waveform (IEC 61000-4-5). These ratings reflect its ability to absorb transient energy without failure under standardized surge profiles. The 1000 W rating applies to shorter, higher-current lightning-induced surges, while the 200 W rating targets longer-duration ESD events. Both values are validated per Vishay's absolute maximum ratings table in document 85881.
SMF7V0A-E3-08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-219AB
- Series:
- eSMP®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7V
- Voltage - Breakdown (Min):
- 7.78V
- Voltage - Clamping (Max) @ Ipp:
- 12V
- Current - Peak Pulse (10/1000µs):
- 16.7A
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 843pF @ 1MHz
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
SMF7V0A-E3-08 FAQ
1.How can I place an order for SMF7V0A-E3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF7V0A-E3-08 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 SMF7V0A-E3-08 reliable?
The price and inventory of SMF7V0A-E3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF7V0A-E3-08 is usually 5 days.
3.What payment methods are accepted for SMF7V0A-E3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF7V0A-E3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF7V0A-E3-08?
SMF7V0A-E3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF7V0A-E3-08 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 SMF7V0A-E3-08?
For technical support, including SMF7V0A-E3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF7V0A-E3-08 requirements.
6.How does Aetrix verify that SMF7V0A-E3-08 is sourced from the original manufacturer or authorized distributors?
All SMF7V0A-E3-08 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 SMF7V0A-E3-08 meets industry standards.
7.What is the process for return or replacement of SMF7V0A-E3-08?
All SMF7V0A-E3-08 units undergo pre-shipment inspection (PSI). If there is an issue with SMF7V0A-E3-08, 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 SMF7V0A-E3-08 part is unused and in its original packaging.
Return procedure for SMF7V0A-E3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF7V0A-E3-08 Tags
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