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Vishay SMF7V5A-HE3_A08
- Part No.:
- SMF7V5A-HE3_A08
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF7V5A-HE3_A08.pdf
- Description:
- ESD PROTECTION DIODE SMF DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,374
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Product details
Overview
SMF7V5A-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 7.5 V stand-off voltage, 8.33–9.3 V reverse breakdown range at 1 mA, 12.9 V max clamping voltage at 15.5 A peak pulse current (10/1000 μs), 773 pF typical capacitance at 0 V, and ±30 kV IEC 61000-4-2 ESD immunity - deployed in USB 2.0, HDMI, and industrial sensor interfaces.
For engineers reviewing the SMF7V5A-HE3_A08 datasheet, SMF7V5A-HE3_A08 pinout, SMF7V5A-HE3_A08 application, or SMF7V5A-HE3_A08 equivalent, this device delivers verified AEC-Q101 qualification, low-noise fast-response clamping, SOD-123W-compatible footprint, and robust 200 W peak pulse power handling - critical for automotive infotainment, industrial HMI, and portable medical data ports where signal integrity and ESD survivability are non-negotiable.
Technical Context
This diode operates as a unidirectional TVS (transient voltage suppressor) with cathode-anode polarity, leveraging silicon avalanche structure to clamp transients above VRWM while maintaining sub-1 nA leakage at rated stand-off. Its low 773 pF capacitance enables use on 480 Mbps USB 2.0 lines without signal degradation, and its 12.9 V VC at IPPM ensures downstream ICs remain within absolute maximum ratings during 15.5 A surges.
The SMF7V5A-HE3_A08 is qualified per AEC-Q101 for automotive underhood and cockpit applications, supports wave and reflow soldering per J-STD-020 MSL level 1, and exhibits 180 K/W thermal resistance when mounted on 3 mm × 3 mm Cu pads - enabling reliable operation across -65 °C to +175 °C ambient and junction temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 7.5 V - maximum continuous reverse voltage before significant leakage; sets operating margin for 5 V or 3.3 V bus protection. |
| Breakdown Voltage (VBR) | 8.33–9.3 V at 1 mA - defines onset of avalanche conduction; tight tolerance ensures predictable clamping threshold. |
| Clamping Voltage (VC) | 12.9 V max at 15.5 A (10/1000 μs) - limits transient voltage seen by protected IC; critical for safeguarding 13.2 V abs-max I/O pins. |
| Peak Pulse Power (PPP) | 200 W at 10/1000 μs - sustains high-energy ESD events without failure; validated per IEC 61000-4-2 contact/air discharge. |
| Capacitance (CD) | 773 pF at 0 V, 1 MHz - low enough for USB 2.0 full-speed signaling; avoids signal rise-time degradation or jitter. |
| ESD Immunity | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - exceeds automotive and industrial immunity requirements for human interaction points. |
| Leakage Current (IR) | 0.1 μA max at VRWM - negligible loading on high-impedance sensor or reference lines; preserves accuracy and battery life. |
Pinout & Package
SMF7V5A-HE3_A08 uses the DO-219AB (SMF) package: low-profile, surface-mount, single-diode configuration with cathode marked by a bar on the body. Dimensions: 3.9 mm × 1.9 mm × 1.08 mm (L × W × H); compatible with SOD-123W, SOD-123F, and SOD-123FL footprints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Input side of protected line | Connected to signal trace upstream of IC; carries surge current into diode during overvoltage event. |
| Cathode (Pin 2) | Ground reference node | Connected to system ground plane; completes clamping path; must be low-inductance for effective transient shunting. |
Key Features
| Feature | Design Value |
|---|---|
| Low-Noise Fast Response | Avalanche structure enables sub-nanosecond response to ESD transients - prevents latch-up or damage before IC internal protection activates. |
| AEC-Q101 Qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock - suitable for ADAS camera links and infotainment displays. |
| Reflow & Wave Solder Compatible | Rated for peak reflow up to 260 °C per J-STD-020 - supports high-volume automated assembly without delamination or parametric shift. |
| UL 94 V-0 Molding Compound | Flame-retardant encapsulation meets safety standards for enclosed industrial and medical enclosures - no halogen-free compromise on fire resistance. |
| MSL Level 1 Handling | No dry-pack or baking required prior to assembly - reduces manufacturing overhead and eliminates moisture-related popcorning risk. |
Applications
| USB 2.0 Data Lines | HDMI DDC/CEC Channels |
|---|---|
Use Scenario: Protecting differential USB 2.0 D+/D- signals against ESD during cable insertion or user handling in portable medical devices. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed inline between connector and USB transceiver IC to clamp transients before they reach PHY inputs. Use Value: 773 pF capacitance avoids signal integrity loss at 480 Mbps; 12.9 V clamping ensures transceiver I/O stays below 13.2 V abs-max rating. |
Use Scenario: Safeguarding HDMI DDC (I²C) and CEC control lines in automotive infotainment head units exposed to repeated hot-plug events. IC Role / Device Role / Timing Role: Standoff-rated ESD suppressor on bidirectional 5 V control buses, referenced to chassis ground via short low-inductance path. Use Value: 7.5 V VRWM allows full 5 V logic swing; ±30 kV ESD rating exceeds ISO 10605 requirements for vehicle interior interfaces. |
| Industrial Sensor Interfaces | Automotive Camera Serial Link (FPD-Link) |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA or 0–10 V) from ESD in factory-floor pressure/temperature transmitters. IC Role / Device Role / Timing Role: Low-leakage (0.1 μA) unidirectional clamp on signal path to ADC input, minimizing offset error and drift. Use Value: Sub-μA leakage preserves measurement accuracy; 180 K/W RthJA enables stable operation in sealed enclosures up to 85 °C ambient. |
Use Scenario: Transient suppression on FPD-Link III serial video lines connecting rearview cameras to display modules in vehicles. IC Role / Device Role / Timing Role: High-speed ESD protector on AC-coupled differential video pairs, placed adjacent to connector to minimize loop inductance. Use Value: 12.9 V clamping protects serializer/deserializer I/O; AEC-Q101 qualification ensures compliance with automotive lifecycle and environmental stress tests. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.5A-E3/57T | Higher 13.4 V clamping at 12.3 A; larger SMA (DO-214AC) package; 1000 W PPP (8/20 μs). | Less suitable for high-speed data due to higher capacitance (~1000 pF); better for power rail or lower-frequency analog lines. | Select when higher energy handling is needed and board space permits larger footprint; not recommended for USB/HDMI. |
| TPD2E001DRYR | 2-channel, 0.85 pF per line, 5.5 V VRWM; integrated dual-diode array in USON-6; no AEC-Q101 rating. | Optimized for ultra-high-speed digital interfaces (e.g., USB 3.0, MIPI); lacks automotive qualification and higher-voltage standoff. | Choose for compact, multi-line protection on consumer electronics; avoid where AEC-Q101 or >7 V stand-off is mandatory. |
Compared with SMAJ7.5A-E3/57T and TPD2E001DRYR, SMF7V5A-HE3_A08 uniquely balances 7.5 V stand-off, 773 pF capacitance, AEC-Q101 qualification, and DO-219AB form factor - making it the optimal choice for automotive and industrial high-speed data lines requiring both precision voltage margin and robust ESD immunity.
Availability
SMF7V5A-HE3_A08 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial sensor transmitters, and portable medical data interfaces requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant ESD protection.
Supply support for SMF7V5A-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 circuit protection technologies.
The SMF series is part of Vishay's eSMP® ESD protection portfolio, engineered specifically for high-reliability transient suppression in automotive, industrial, and computing applications where low capacitance, fast response, and AEC-Q101 compliance are essential.
FAQ
What is the maximum clamping voltage of the SMF7V5A-HE3_A08 under standard test conditions?
The SMF7V5A-HE3_A08 has a maximum reverse clamping voltage (VC) of 12.9 V when subjected to a 15.5 A peak pulse current with a 10/1000 μs waveform. This value is measured at the device terminals and guarantees that protected downstream ICs experience no more than 12.9 V during standardized ESD transients - a key parameter for ensuring compatibility with 13.2 V absolute maximum rated I/O structures. The SMF7V5A-HE3_A08 maintains this performance across its full operating temperature range.
Is the SMF7V5A-HE3_A08 qualified for automotive applications?
Yes, the SMF7V5A-HE3_A08 is AEC-Q101 qualified, having passed stress tests including temperature cycling, high-temperature operating life, and mechanical shock - confirming suitability for automotive environments such as infotainment systems, ADAS camera links, and body control modules. Its -65 °C to +175 °C operating temperature range and MSL level 1 handling further support automotive manufacturing and field reliability requirements. The SMF7V5A-HE3_A08 is explicitly listed in Vishay's AEC-Q101 qualified product matrix.
What package type does the SMF7V5A-HE3_A08 use, and is it compatible with standard SMT processes?
The SMF7V5A-HE3_A08 uses the DO-219AB (SMF) package - a low-profile, surface-mount case with dimensions of 3.9 mm × 1.9 mm × 1.08 mm and cathode marking via a bar. It is fully compatible with standard reflow soldering (peak 260 °C) and wave soldering per J-STD-020 MSL level 1, requiring no pre-baking. Its footprint aligns with SOD-123W, SOD-123F, and SOD-123FL land patterns, enabling drop-in replacement in existing designs. The SMF7V5A-HE3_A08's package design minimizes parasitic inductance for optimal high-speed transient suppression.
How does the capacitance of the SMF7V5A-HE3_A08 affect high-speed signal integrity?
The SMF7V5A-HE3_A08 exhibits 773 pF typical capacitance at 0 V and 1 MHz - a value carefully optimized to protect high-speed interfaces like USB 2.0 (480 Mbps) without degrading signal rise time or introducing excessive jitter. This capacitance remains stable across reverse bias voltages up to VRWM, ensuring consistent impedance loading. When placed close to connectors with minimal trace length, the SMF7V5A-HE3_A08 preserves eye diagram margins and meets USB-IF signal integrity requirements. Its low capacitance directly enables reliable full-speed data transmission in noise-sensitive applications.
What is the leakage current specification for the SMF7V5A-HE3_A08 at its rated stand-off voltage?
The SMF7V5A-HE3_A08 specifies a maximum reverse leakage current (IR) of 0.1 μA at its 7.5 V stand-off voltage (VRWM) and 25 °C ambient temperature. This ultra-low leakage ensures minimal loading on high-impedance circuits such as sensor outputs, reference voltage nodes, or battery-monitoring paths - preserving measurement accuracy and extending battery life in portable systems. Leakage remains well below 1 μA across the full -65 °C to +175 °C operating range, supporting stable performance in harsh environments. The SMF7V5A-HE3_A08's leakage behavior is confirmed in Vishay's published reverse current vs. voltage curves.
SMF7V5A-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):
- 7.5V
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 12.9V
- Current - Peak Pulse (10/1000µs):
- 15.5A
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 773pF @ 1MHz
- Operating Temperature:
- -65°C ~ 175°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
SMF7V5A-HE3_A08 FAQ
1.How can I place an order for SMF7V5A-HE3_A08 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF7V5A-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 SMF7V5A-HE3_A08 reliable?
The price and inventory of SMF7V5A-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 SMF7V5A-HE3_A08 is usually 5 days.
3.What payment methods are accepted for SMF7V5A-HE3_A08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF7V5A-HE3_A08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF7V5A-HE3_A08?
SMF7V5A-HE3_A08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF7V5A-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 SMF7V5A-HE3_A08?
For technical support, including SMF7V5A-HE3_A08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF7V5A-HE3_A08 requirements.
6.How does Aetrix verify that SMF7V5A-HE3_A08 is sourced from the original manufacturer or authorized distributors?
All SMF7V5A-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 SMF7V5A-HE3_A08 meets industry standards.
7.What is the process for return or replacement of SMF7V5A-HE3_A08?
All SMF7V5A-HE3_A08 units undergo pre-shipment inspection (PSI). If there is an issue with SMF7V5A-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 SMF7V5A-HE3_A08 part is unused and in its original packaging.
Return procedure for SMF7V5A-HE3_A08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF7V5A-HE3_A08 Tags
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