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Vishay SMF7V5A-HM3_A08
- Part No.:
- SMF7V5A-HM3_A08
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF7V5A-HM3_A08.pdf
- Description:
- ESD PROTECTION DIODE SMF DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,504
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Product details
Overview
SMF7V5A-HM3_A08 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 7.5 V stand-off voltage, 12.9 V maximum clamping voltage at 15.5 A peak pulse current, 773 pF typical junction capacitance at 0 V, ±30 kV IEC 61000-4-2 ESD immunity, and AEC-Q101 qualification for automotive applications.
For engineers reviewing the SMF7V5A-HM3_A08 datasheet, SMF7V5A-HM3_A08 pinout, SMF7V5A-HM3_A08 application, or SMF7V5A-HM3_A08 equivalent, this device is selected for robust electrostatic discharge protection in USB 2.0, HDMI, and automotive infotainment interfaces where low clamping voltage and sub-1 ns response time are critical to signal integrity.
Technical Context
The SMF7V5A-HM3_A08 operates as a single-channel unidirectional TVS diode with avalanche breakdown behavior, optimized for fast transient suppression on I/O lines. Its low incremental surge resistance ensures minimal voltage overshoot during ESD events, while its "Low Noise" technology enables sub-nanosecond response to 30 kV contact discharges.
Designed for mounting on standard epoxy-glass PCBs with 3 mm × 3 mm copper pads, it delivers 180 K/W junction-to-ambient thermal resistance and supports reflow soldering up to 260 °C peak temperature. It meets AEC-Q101 stress test requirements including H3B-class human body model (>8 kV) and full IEC 61000-4-2 compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 7.5 V - Maximum continuous reverse operating voltage before significant leakage; defines safe operating margin below clamping threshold. |
| Clamping Voltage (VC) | 12.9 V max at IPPM = 15.5 A - Peak voltage seen by protected circuit during 10/1000 μs surge; critical for IC-level overvoltage margining. |
| Junction Capacitance (CD) | 773 pF at VR = 0 V, f = 1 MHz - Low enough for USB 2.0 (480 Mbps) signal integrity; higher than SMF5V0A but suitable for medium-speed interfaces. |
| ESD Immunity | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - Full compliance with industrial and automotive ESD immunity standards without external filtering. |
| Peak Pulse Power | 200 W at 10/1000 μs - Sustains multiple ESD strikes without degradation; rated for 0.01% duty cycle repetition. |
| AEC-Q101 Qualified | Yes - Validated for automotive underhood and cabin applications including infotainment, telematics, and ADAS sensor interfaces. |
| 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
SMF7V5A-HM3_A08 uses the DO-219AB (SMF) package: an asymmetrical surface-mount case with cathode marking bar. The device has two terminals: anode and cathode. Mounting orientation follows standard SOD-123W tape carrier direction with cathode toward sprocket holes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/line side connection | Connected to signal line requiring ESD protection; referenced to system ground via cathode path during clamping. |
| Cathode | Ground reference terminal | Must be tied to low-impedance system ground plane; carries full surge current during transient events. |
Key Features
| Feature | Design Value |
|---|---|
| 200 W peak pulse power (10/1000 μs) | Enables repeated ESD strike handling in high-reliability automotive modules without derating or thermal shutdown. |
| ±30 kV IEC 61000-4-2 ESD immunity | Eliminates need for secondary ESD filters in USB/HDMI ports, reducing BOM count and board space. |
| 773 pF junction capacitance | Preserves signal rise/fall times in 480 Mbps USB 2.0 links while maintaining sufficient surge energy absorption. |
| AEC-Q101 qualification | Validates reliability for 15-year automotive service life under thermal cycling, humidity, and mechanical shock stress. |
| Low-profile DO-219AB package | Supports 0.5 mm pitch routing and co-placement with high-density connectors in compact infotainment head units. |
Applications
| USB 2.0 Interface Protection | HDMI Signal Line Protection |
|---|---|
Use Scenario: Protecting D+ and D− differential pairs in automotive USB host ports against ESD events during cable insertion/removal. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between each data line and chassis ground, clamping transients before they reach the USB transceiver. Use Value: Maintains <1 ns response time and 773 pF loading to preserve 480 Mbps eye diagram integrity while surviving >30 kV contact discharge. |
Use Scenario: Shielding TMDS clock and data channels in automotive rear-seat entertainment systems from ESD coupling through HDMI cables. IC Role / Device Role / Timing Role: Single-channel ESD suppressor mounted adjacent to HDMI connector pins, referenced to clean digital ground. Use Value: Limits clamping voltage to 12.9 V to prevent damage to HDMI PHY drivers while adding negligible jitter due to low capacitance. |
| Automotive Infotainment Display Link | Industrial CAN FD Transceiver I/O |
Use Scenario: Safeguarding LVDS or FPD-Link III video data lanes between head unit and central display in vehicles. IC Role / Device Role / Timing Role: Standoff-voltage-matched TVS diode on each high-speed differential pair, minimizing skew impact. Use Value: 7.5 V VRWM aligns with common display interface DC bias levels, avoiding forward conduction during normal operation. |
Use Scenario: Adding secondary ESD protection on CAN FD transceiver RX/TX pins in gateways exposed to harness-level transients. IC Role / Device Role / Timing Role: Low-capacitance unidirectional clamp on each CAN signal line, placed upstream of integrated transceiver ESD structure. Use Value: 12.9 V VC ensures no false triggering during 5 V CAN FD recessive state while absorbing >30 kV ESD pulses. |
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-E3/5A | Higher clamping voltage (13.4 V), larger SMA package (4.5 mm × 2.7 mm), 1000 W peak power (8/20 μs). | Better suited for power-line surge (IEC 61000-4-5), less optimal for high-speed data due to higher capacitance (~1000 pF). | Select SMAJ7.5A-E3/5A only when higher surge energy handling is required and PCB layout allows larger footprint. |
| TPD2E001DRYR | 2-channel, 15 pF ultra-low capacitance, 5.5 V VRWM, not AEC-Q101 qualified, 200 W rating. | Targeted at portable USB Type-C and mobile interfaces; lacks automotive qualification and higher stand-off voltage. | Choose TPD2E001DRYR for consumer-grade high-speed ports where AEC-Q101 is unnecessary and capacitance must be <20 pF. |
Compared with SMAJ7.5A-E3/5A and TPD2E001DRYR, SMF7V5A-HM3_A08 uniquely balances automotive qualification, 7.5 V stand-off, 773 pF capacitance, and DO-219AB footprint-making it optimal for space-constrained, medium-speed automotive data lines requiring production-grade reliability.
Availability
SMF7V5A-HM3_A08 is available at Aetrix Electronics and suitable for automotive infotainment, industrial HMI, and USB 2.0 peripheral interfaces requiring stable component supply across multi-year production cycles.
Supply support for SMF7V5A-HM3_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 Semiconductors is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, optoelectronics, and passive components for automotive, industrial, and computing markets.
The SMF series targets high-speed data line protection with AEC-Q101 qualification, low clamping, and standardized SOD-123W-compatible packaging-designed specifically for automotive infotainment, ADAS sensor interfaces, and industrial communication ports.
FAQ
What is the maximum clamping voltage of the SMF7V5A-HM3_A08 under a 10/1000 μs surge?
The SMF7V5A-HM3_A08 has a maximum clamping voltage (VC) of 12.9 V when subjected to its rated peak pulse current of 15.5 A using a 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and is measured per IEC 61000-4-5 test conditions. The clamping performance ensures downstream ICs remain within safe voltage margins during ESD events.
Is the SMF7V5A-HM3_A08 qualified for automotive applications?
Yes, the SMF7V5A-HM3_A08 is AEC-Q101 qualified, having passed stress tests including human body model (H3B class, >8 kV), machine model, temperature cycling, and high-temperature operating life. This qualification confirms its suitability for automotive cabin and under-hood applications such as infotainment head units, telematics control units, and display link protection where long-term reliability is mandatory.
What is the junction capacitance of the SMF7V5A-HM3_A08 and how does it affect high-speed signals?
The SMF7V5A-HM3_A08 exhibits 773 pF typical junction capacitance at 0 V reverse bias and 1 MHz frequency. This value is low enough to avoid significant signal degradation in USB 2.0 (480 Mbps) and FPD-Link III interfaces, preserving rise/fall times and eye opening. It is higher than ultra-low-capacitance alternatives but optimized for balanced ESD robustness and signal fidelity in medium-speed automotive data links.
Does the SMF7V5A-HM3_A08 support lead-free reflow soldering?
Yes, the SMF7V5A-HM3_A08 is RoHS-compliant and lead-free, with tin-plated terminations rated for peak reflow temperatures up to 260 °C per J-STD-020 MSL level 1 guidelines. Its DO-219AB package is fully compatible with standard wave and reflow soldering processes used in high-volume automotive PCB assembly.
How does the SMF7V5A-HM3_A08 compare to the SMF5V0A in terms of stand-off voltage and application scope?
The SMF7V5A-HM3_A08 has a 7.5 V stand-off voltage (VRWM), versus 5.0 V for the SMF5V0A, making it suitable for interfaces with higher DC bias levels such as 7 V display power rails or 5 V logic with margin. Its higher VRWM reduces leakage at nominal operating voltages and avoids false triggering in systems where 5 V-rated devices would conduct prematurely. Both share identical DO-219AB packaging and AEC-Q101 qualification.
SMF7V5A-HM3_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-HM3_A08 FAQ
1.How can I place an order for SMF7V5A-HM3_A08 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF7V5A-HM3_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-HM3_A08 reliable?
The price and inventory of SMF7V5A-HM3_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-HM3_A08 is usually 5 days.
3.What payment methods are accepted for SMF7V5A-HM3_A08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF7V5A-HM3_A08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF7V5A-HM3_A08?
SMF7V5A-HM3_A08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF7V5A-HM3_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-HM3_A08?
For technical support, including SMF7V5A-HM3_A08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF7V5A-HM3_A08 requirements.
6.How does Aetrix verify that SMF7V5A-HM3_A08 is sourced from the original manufacturer or authorized distributors?
All SMF7V5A-HM3_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-HM3_A08 meets industry standards.
7.What is the process for return or replacement of SMF7V5A-HM3_A08?
All SMF7V5A-HM3_A08 units undergo pre-shipment inspection (PSI). If there is an issue with SMF7V5A-HM3_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-HM3_A08 part is unused and in its original packaging.
Return procedure for SMF7V5A-HM3_A08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF7V5A-HM3_A08 Tags
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