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Vishay SMF7V0A-HE3_A08
- Part No.:
- SMF7V0A-HE3_A08
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF7V0A-HE3_A08.pdf
- Description:
- ESD PROTECTION DIODE SMF DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,896
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Product details
Overview
SMF7V0A-HE3_A08 from Vishay Semiconductors is a unidirectional surface-mount ESD protection diode in the SMF (DO-219AB) package, designed for low-capacitance transient suppression on high-speed data lines. It features a 7.0 V stand-off voltage (VRWM), 12.0 V maximum clamping voltage at 16.7 A peak pulse current, 843 pF typical capacitance at 0 V, ±30 kV IEC 61000-4-2 ESD immunity, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMF7V0A-HE3_A08 datasheet, SMF7V0A-HE3_A08 pinout, SMF7V0A-HE3_A08 application, or SMF7V0A-HE3_A08 equivalent, this device is selected for robust ESD hardening of USB 2.0, HDMI, CAN FD, and automotive infotainment interfaces where low clamping voltage and sub-nanosecond response are critical to signal integrity and IC survivability.
Technical Context
This diode operates as a unidirectional TVS (Transient Voltage Suppressor) with avalanche breakdown behavior, optimized for fast transient suppression on single-ended I/O lines. Its low incremental surge resistance enables tight clamping (VC = 12.0 V @ IPPM = 16.7 A) under 10/1000 μs surges, while its "Low Noise" technology ensures sub-1 ns response time to ESD events per IEC 61000-4-2.
The device is rated for continuous operation from -65 °C to +175 °C, supports wave and reflow soldering per J-STD-020 MSL Level 1, and meets AEC-Q101 stress requirements including H3B-class human body model (>8 kV) - confirming suitability for under-hood and ADAS subsystems without derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 7.0 V - Maximum continuous reverse voltage before leakage exceeds 3 μA; sets operating margin above nominal 5 V or 3.3 V bus voltages. |
| Clamping Voltage (VC) | 12.0 V max @ 16.7 A - Limits transient voltage seen by downstream ICs during 10/1000 μs surge, protecting 12 V-tolerant receivers. |
| Peak Pulse Power (PPP) | 200 W @ 10/1000 μs - Sustains short-duration transients common in automotive load-dump or ISO 7637-2 pulses without failure. |
| Capacitance (CD) | 843 pF @ 0 V, 1 MHz - Low enough for USB 2.0 (480 Mbps) and CAN FD (5 Mbps) without signal distortion or rise-time degradation. |
| ESD Rating | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - Exceeds industrial and automotive ESD immunity requirements for exposed connectors. |
| AEC-Q101 Qualified | Yes - Validated for automotive applications including engine control units, body electronics, and infotainment systems per stress test conditions. |
| Package | DO-219AB (SOD-123W-compatible) - 3.9 mm × 1.9 mm × 1.08 mm low-profile outline enabling dense PCB layouts and automated assembly. |
Pinout & Package
SMF7V0A-HE3_A08 uses the DO-219AB (SMF) package: a two-terminal, surface-mount, cathode-marked case with 3.9 mm length, 1.9 mm width, and 1.08 mm height. The cathode bar is located at one end; polarity must be observed during layout to ensure correct transient shunting path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side | Connected to protected signal line (e.g., USB D+, CAN_H); conducts surge current toward ground when clamped. |
| Cathode | Ground reference | Connected to system ground plane; establishes reference for clamping action and defines unidirectional conduction direction. |
Key Features
| Feature | Design Value |
|---|---|
| 200 W peak pulse power (10/1000 μs) | Enables reliable suppression of repetitive transients in automotive and industrial environments without thermal runaway. |
| ±30 kV ESD immunity (IEC 61000-4-2) | Meets highest-level ESD protection requirements for user-accessible ports without external shielding or filtering. |
| 843 pF capacitance at 0 V | Preserves signal integrity on 480 Mbps USB 2.0 and 5 Mbps CAN FD buses with minimal insertion loss or jitter impact. |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing. |
| Low-profile DO-219AB package | Supports high-density routing on compact PCBs and compatibility with standard SOD-123W pick-and-place tooling. |
Applications
| USB 2.0 Interface Protection | CAN FD Bus Protection |
|---|---|
|
Use Scenario: Protecting USB 2.0 D+ and D- lines in automotive infotainment head units against hot-plug ESD and cable discharge events. IC Role / Device Role: Unidirectional TVS diode placed between each data line and chassis ground to clamp transients below receiver damage threshold. Use Value: 843 pF capacitance avoids signal rise-time degradation, while 12.0 V clamping ensures <1.8 V margin below 13.8 V absolute maximum rating of common USB PHYs. |
Use Scenario: Safeguarding CAN FD controller and transceiver pins in ADAS domain controllers exposed to ESD from service ports or harness coupling. IC Role / Device Role: Line-to-ground transient suppressor on CAN_H and CAN_L, leveraging unidirectional configuration to avoid DC bias disruption. Use Value: ±30 kV ESD rating exceeds ISO 10605 requirements, and 7.0 V VRWM aligns with 5 V CAN FD supply rails without false triggering. |
| Automotive Sensor Interface | Industrial RS-485 Port |
|
Use Scenario: Shielding analog/digital sensor outputs (e.g., pressure, temperature) in engine control modules from ignition noise and alternator ripple-induced transients. IC Role / Device Role: Standoff-clamp TVS on sensor signal lines referenced to vehicle ground, providing fail-safe overvoltage cutoff. Use Value: -65 °C to +175 °C operating range matches under-hood thermal profiles, and AEC-Q101 qualification confirms long-term reliability in vibration-prone environments. |
Use Scenario: Hardening RS-485 transceiver inputs in factory automation PLCs connected to long cable runs subject to lightning-induced surges. IC Role / Device Role: Primary transient suppressor on A/B differential pair, limiting voltage excursion to protect transceiver input stages. Use Value: 200 W peak pulse power handles 10/1000 μs surges per IEC 61000-4-5 Level 3, while 12.0 V clamping stays within RS-485 receiver common-mode range (-7 V to +12 V). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.0A-E3/57T | Higher clamping voltage (12.5 V @ 17.1 A), larger SMA package (4.5 mm × 2.7 mm), 1000 W PPP (8/20 μs) | Better suited for higher-energy surges but less ideal for high-speed data due to higher capacitance (~1000 pF) | Select when surge energy exceeds 200 W and board space allows larger footprint. |
| TPD2E001DRYR | 2-channel, bidirectional, 12 pF capacitance, 5.5 V VRWM, not AEC-Q101 qualified | Optimized for ultra-high-speed interfaces (USB 3.0, HDMI) but lacks automotive qualification and lower surge rating | Choose for consumer-grade high-speed digital ports where ESD level is ≤±15 kV and AEC-Q101 is not required. |
Compared with SMAJ7.0A-E3/57T and TPD2E001DRYR, SMF7V0A-HE3_A08 delivers optimal balance of low capacitance, automotive qualification, and compact DO-219AB packaging - making it preferred for space-constrained, safety-critical automotive data links requiring both ESD and surge resilience.
Availability
SMF7V0A-HE3_A08 is available at Aetrix Electronics and suitable for automotive infotainment systems, CAN FD networks, and industrial RS-485 communications requiring stable component supply across extended product lifecycles.
Supply support for SMF7V0A-HE3_A08 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, sensors, and passive elements, with leadership in power management, signal conditioning, and protection technologies.
The SMF series belongs to Vishay's eSMP® family of surface-mount TVS diodes, engineered specifically for high-reliability ESD and surge protection in automotive, industrial, and computing applications where miniaturization and AEC-Q101 compliance are mandatory.
FAQ
What is the reverse stand-off voltage (VRWM) of SMF7V0A-HE3_A08?
The reverse stand-off voltage (VRWM) of SMF7V0A-HE3_A08 is 7.0 V - the maximum DC or continuous reverse working voltage that can be applied without exceeding the specified leakage current of 3 μA. This value ensures compatibility with 5 V logic systems while maintaining sufficient margin above nominal rail voltage to prevent false triggering during normal operation.
Is SMF7V0A-HE3_A08 qualified for automotive applications?
Yes, SMF7V0A-HE3_A08 is AEC-Q101 qualified, having passed all stress tests including high-temperature operating life, temperature cycling, and human body model ESD (class H3B >8 kV). This qualification confirms its suitability for deployment in automotive ECUs, ADAS modules, and infotainment systems where reliability under extreme thermal and mechanical conditions is essential.
What is the clamping voltage of SMF7V0A-HE3_A08 at its rated peak pulse current?
The maximum clamping voltage (VC) of SMF7V0A-HE3_A08 is 12.0 V at a peak pulse current (IPPM) of 16.7 A using a 10/1000 μs waveform. This clamping performance ensures downstream ICs experience limited overvoltage during transient events, preserving functionality and preventing latch-up or gate oxide damage in sensitive interface receivers.
Does SMF7V0A-HE3_A08 support automated PCB assembly processes?
Yes, SMF7V0A-HE3_A08 is fully compatible with standard surface-mount assembly processes including wave and reflow soldering. Its DO-219AB package meets J-STD-020 MSL Level 1 requirements with a peak reflow temperature of up to 260 °C, and its cathode marking and tape-and-reel packaging (3K per 7″ reel) enable seamless integration into high-volume SMT lines.
How does the capacitance of SMF7V0A-HE3_A08 affect high-speed signal integrity?
With a typical capacitance of 843 pF at 0 V and 1 MHz, SMF7V0A-HE3_A08 introduces minimal loading on USB 2.0 and CAN FD signals - preserving edge rates and eye diagram margins. Its low incremental surge resistance and sub-1 ns response time further ensure transient energy is shunted before signal distortion occurs, making SMF7V0A-HE3_A08 appropriate for data rates up to 480 Mbps without equalization.
SMF7V0A-HE3_A08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay
- 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:
- -
- Capacitance @ Frequency:
- 843pF @ 1MHz
- Operating Temperature:
- -65°C ~ 175°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
SMF7V0A-HE3_A08 FAQ
1.How can I place an order for SMF7V0A-HE3_A08 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF7V0A-HE3_A08 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-HE3_A08 reliable?
The price and inventory of SMF7V0A-HE3_A08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF7V0A-HE3_A08 is usually 5 days.
3.What payment methods are accepted for SMF7V0A-HE3_A08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF7V0A-HE3_A08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF7V0A-HE3_A08?
SMF7V0A-HE3_A08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF7V0A-HE3_A08 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-HE3_A08?
For technical support, including SMF7V0A-HE3_A08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF7V0A-HE3_A08 requirements.
6.How does Aetrix verify that SMF7V0A-HE3_A08 is sourced from the original manufacturer or authorized distributors?
All SMF7V0A-HE3_A08 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-HE3_A08 meets industry standards.
7.What is the process for return or replacement of SMF7V0A-HE3_A08?
All SMF7V0A-HE3_A08 units undergo pre-shipment inspection (PSI). If there is an issue with SMF7V0A-HE3_A08, 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-HE3_A08 part is unused and in its original packaging.
Return procedure for SMF7V0A-HE3_A08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF7V0A-HE3_A08 Tags
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