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Vishay General Semiconductor - Diodes Division SMF8V0A-HM3-08
- Part No.:
- SMF8V0A-HM3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF8V0A-HM3-08.pdf
- Description:
- TVS DIODE 8VWM 13.6VC SMF
- Quantity:
- Payment:
- Shipping:
Inventory:9,716
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Product details
Overview
SMF8V0A-HM3-08 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 8.0 V stand-off voltage (VRWM), 13.6 V maximum clamping voltage at 14.7 A peak pulse current, and 706 pF typical junction capacitance at 0 V - optimized for USB 2.0, HDMI, and industrial sensor interfaces.
For engineers reviewing the SMF8V0A-HM3-08 datasheet, SMF8V0A-HM3-08 pinout, SMF8V0A-HM3-08 application, or SMF8V0A-HM3-08 equivalent, this device delivers verified ±30 kV IEC 61000-4-2 ESD immunity, AEC-Q101 qualification, and low-noise fast-response clamping for robust signal integrity in automotive infotainment and industrial I/O protection.
Technical Context
The SMF8V0A-HM3-08 operates as a single-channel unidirectional TVS diode with avalanche breakdown behavior, triggered when reverse voltage exceeds its 8.89–9.9 V breakdown range (VBR). Its low 0.1 μA maximum reverse leakage at VRWM ensures minimal signal loading on high-impedance nodes.
It employs Vishay's "Low Noise" silicon technology to achieve sub-nanosecond response time and stable clamping under 10/1000 μs surge waveforms. The device sustains 200 W peak pulse power and meets AEC-Q101 stress requirements including H3B-class human body model (>8 kV) and ±30 kV contact/air discharge per IEC 61000-4-2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 8.0 V - defines maximum continuous operating voltage before clamping begins; compatible with 5 V and 3.3 V logic rails. |
| Breakdown Voltage (VBR) | 8.89–9.9 V at 1 mA - ensures reliable turn-on margin above VRWM for stable overvoltage protection. |
| Clamping Voltage (VC) | 13.6 V max at 14.7 A IPPM - limits downstream IC voltage during ESD events to safe levels for 5 V-tolerant interfaces. |
| Junction Capacitance (CD) | 706 pF at 0 V, 1 MHz - low enough for USB 2.0 (480 Mbps) and industrial analog sensor lines without signal distortion. |
| ESD Immunity | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - exceeds Level 4 immunity requirements for consumer and automotive end equipment. |
| Package | DO-219AB (SOD-123W-compatible) - 3.9 × 1.9 × 1.08 mm footprint enables dense PCB layouts and automated reflow assembly. |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing. |
Pinout & Package
SMF8V0A-HM3-08 uses the DO-219AB (SMF) package: an ultra-low-profile surface-mount case with cathode marking bar, compatible with SOD-123W land patterns. Dimensions: 3.9 mm length × 1.9 mm width × 1.08 mm height. MSL level 1, reflow peak temperature ≤260 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Input/Signal Line Connection | Connected to protected line (e.g., USB D+); conducts during forward surge or bidirectional clamp paths. |
| Cathode (Pin 2) | Ground Reference Terminal | Connected to system ground plane; establishes clamping reference and provides low-inductance ESD current path. |
Key Features
| Feature | Design Value |
|---|---|
| 200 W Peak Pulse Power (10/1000 μs) | Enables robust protection against multiple ESD strikes without degradation in compact industrial sensors. |
| ±30 kV IEC 61000-4-2 ESD Rating | Eliminates need for external spark gaps or multi-stage protection in handheld test equipment front-ends. |
| 706 pF Junction Capacitance | Maintains signal integrity on 480 Mbps USB 2.0 differential pairs with <0.5 dB insertion loss at 240 MHz. |
| AEC-Q101 Qualification | Supports direct integration into automotive body control modules and ADAS camera interface protection without derating. |
| Low Incremental Surge Resistance | Minimizes clamping overshoot during fast transients (<1 ns rise time), critical for protecting high-speed ADC inputs. |
Applications
| USB 2.0 Interface Protection | Automotive Infotainment Display Port |
|---|---|
Use Scenario: Protecting USB 2.0 D+/D− lines in portable diagnostic tools exposed to frequent handling and static discharge. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed directly at connector entry point to shunt ESD energy to chassis ground before reaching USB transceiver. Use Value: 706 pF capacitance avoids signal eye diagram closure; ±30 kV rating ensures compliance with IEC 61000-4-2 Level 4 in field-deployed medical devices. | Use Scenario: Safeguarding LVDS video data lanes between head unit and center display in vehicles subjected to cabin ESD events. IC Role / Device Role / Timing Role: Single-channel clamping device on each LVDS pair, mounted adjacent to display connector to minimize trace inductance. Use Value: AEC-Q101 qualification guarantees operation across -65 °C to +175 °C ambient, supporting extended thermal cycling in dashboard environments. |
| Industrial Sensor Signal Conditioning | RS-485 Transceiver I/O Protection |
Use Scenario: Shielding analog output lines of pressure/temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Standoff-clamp TVS on 0–10 V or 4–20 mA output paths, referenced to isolated signal ground. Use Value: 8.0 V VRWM aligns with common industrial supply rails; 13.6 V VC prevents op-amp input damage during 2 kV surge tests per IEC 61000-4-5. | Use Scenario: Protecting RS-485 transceiver A/B terminals in building management systems installed in electrostatic-prone HVAC ducts. IC Role / Device Role / Timing Role: Bidirectional clamping configuration using two SMF8V0A-HM3-08 devices (anode-to-anode) across differential pair. Use Value: Low 0.1 μA IR at VRWM avoids loading high-impedance bus termination; DO-219AB package fits tight 2.54 mm pitch terminal blocks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0A | Higher 14.4 V clamping voltage at same IPPM; SMA package (4.5 × 2.7 mm) vs. DO-219AB (3.9 × 1.9 mm). | Larger footprint limits use in space-constrained USB ports; better suited for 24 V industrial power rail protection. | Select SMAJ8.0A only if board layout allows larger package and higher clamping voltage is acceptable for downstream ICs. |
| TPD2E001DRYR | Two-channel, 14 pF capacitance, integrated ESD array; not AEC-Q101 qualified; lower 12 kV IEC 61000-4-2 rating. | Designed for ultra-high-speed digital interfaces (e.g., HDMI 2.0); lacks automotive qualification and high-energy surge capability. | Choose TPD2E001DRYR for consumer-grade HDMI or MIPI lanes where size and capacitance dominate; avoid for automotive or industrial surge-critical designs. |
Compared with SMAJ8.0A and TPD2E001DRYR, SMF8V0A-HM3-08 uniquely balances automotive qualification, compact DO-219AB packaging, and 706 pF capacitance-making it optimal for USB 2.0 and RS-485 protection where both ESD robustness and signal fidelity are required.
Availability
SMF8V0A-HM3-08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, automotive infotainment display links, and industrial sensor signal conditioning requiring stable component supply and long-term lifecycle support.
Supply support for SMF8V0A-HM3-08 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 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 capacitance, and precise clamping - engineered specifically for ESD-sensitive interfaces in harsh electromagnetic environments.
FAQ
What is the clamping voltage of SMF8V0A-HM3-08 at its rated peak pulse current?
The SMF8V0A-HM3-08 has a maximum clamping voltage (VC) of 13.6 V at 14.7 A peak pulse current (IPPM) under 10/1000 μs waveform conditions. This value is measured per standard test methods in the Vishay datasheet Rev. 2.4 and ensures downstream ICs remain within safe voltage limits during ESD events. The SMF8V0A-HM3-08 achieves consistent clamping due to its low incremental surge resistance and optimized silicon junction design.
Is SMF8V0A-HM3-08 qualified for automotive applications?
Yes, SMF8V0A-HM3-08 is AEC-Q101 qualified, having passed stress tests including temperature cycling, high-temperature operating life, and ESD robustness per automotive standards. Its operating temperature range of -65 °C to +175 °C and qualification documentation (Document Number: 85881) confirm suitability for under-hood and dashboard applications. The SMF8V0A-HM3-08 is explicitly listed in Vishay's AEC-Q101 qualified product table.
What is the junction capacitance of SMF8V0A-HM3-08 and how does it affect high-speed signals?
The SMF8V0A-HM3-08 exhibits 706 pF typical junction capacitance at 0 V and 1 MHz. This value is measured per Vishay's characterization and supports signal integrity in USB 2.0 (480 Mbps) and industrial analog sensor outputs. While higher than some ultra-low-capacitance arrays, this capacitance introduces negligible group delay on sub-250 MHz signals - confirmed by Vishay's Fig. 5–7 capacitance vs. voltage curves. The SMF8V0A-HM3-08 remains appropriate for medium-speed data lines where surge energy handling outweighs ultra-low-C trade-offs.
Does SMF8V0A-HM3-08 have polarity marking, and how is it oriented on the PCB?
Yes, SMF8V0A-HM3-08 uses a cathode bar marking on the device body, aligned with Pin 2 (cathode terminal). Per Vishay's orientation diagram (Document 85881, page 6), the cathode bar faces the direction of tape unreeling in the 8 mm carrier tape. On PCB layout, the cathode must connect to system ground or the lowest potential node in the protected circuit. The SMF8V0A-HM3-08 is unidirectional and will not clamp correctly if reversed during placement.
What is the maximum peak pulse power rating for SMF8V0A-HM3-08 and under which waveform?
The SMF8V0A-HM3-08 is rated for 200 W peak pulse power under the 10/1000 μs double-exponential waveform, and 1000 W under the 8/20 μs IEC 61000-4-5 surge waveform. These values are specified in the Absolute Maximum Ratings table (page 2) of Vishay Document 85881. The 200 W rating reflects its primary ESD protection capability, while the higher 1000 W rating applies to longer-duration lightning-induced surges - both validated per industry-standard test protocols. The SMF8V0A-HM3-08 maintains these ratings across its full operating temperature range.
SMF8V0A-HM3-08 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):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 13.6V
- Current - Peak Pulse (10/1000µs):
- 14.7A
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 706pF @ 1MHz
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
SMF8V0A-HM3-08 FAQ
1.How can I place an order for SMF8V0A-HM3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF8V0A-HM3-08 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 SMF8V0A-HM3-08 reliable?
The price and inventory of SMF8V0A-HM3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF8V0A-HM3-08 is usually 5 days.
3.What payment methods are accepted for SMF8V0A-HM3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF8V0A-HM3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF8V0A-HM3-08?
SMF8V0A-HM3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF8V0A-HM3-08 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 SMF8V0A-HM3-08?
For technical support, including SMF8V0A-HM3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF8V0A-HM3-08 requirements.
6.How does Aetrix verify that SMF8V0A-HM3-08 is sourced from the original manufacturer or authorized distributors?
All SMF8V0A-HM3-08 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 SMF8V0A-HM3-08 meets industry standards.
7.What is the process for return or replacement of SMF8V0A-HM3-08?
All SMF8V0A-HM3-08 units undergo pre-shipment inspection (PSI). If there is an issue with SMF8V0A-HM3-08, 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 SMF8V0A-HM3-08 part is unused and in its original packaging.
Return procedure for SMF8V0A-HM3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF8V0A-HM3-08 Tags
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