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Vishay General Semiconductor - Diodes Division SMF8V5A-M3-08
- Part No.:
- SMF8V5A-M3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF8V5A-M3-08.pdf
- Description:
- TVS DIODE 8.5VWM 14.4VC SMF
- Quantity:
- Payment:
- Shipping:
Inventory:30,000
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Product details
Overview
SMF8V5A-M3-08 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 standoff voltage of 8.5 V, maximum clamping voltage of 14.4 V at 13.9 A peak pulse current, ±30 kV IEC 61000-4-2 ESD immunity, and 200 W peak pulse power (10/1000 μs). It is widely used in USB 2.0, HDMI, and automotive infotainment interfaces.
For engineers reviewing the SMF8V5A-M3-08 datasheet, SMF8V5A-M3-08 pinout, SMF8V5A-M3-08 application, or SMF8V5A-M3-08 equivalent, key selection criteria include reverse standoff voltage, clamping performance under 10/1000 μs surge, junction temperature rating up to 175 °C, and compatibility with SOD-123W footprint layouts for automated assembly.
Technical Context
This device operates as a single-channel unidirectional TVS diode, leveraging silicon avalanche breakdown to clamp transients before downstream ICs are damaged. Its low 674 pF capacitance at 0 V enables use on signal lines up to ~200 MHz without significant waveform distortion.
The SMF8V5A-M3-08 is optimized for fast response (<1 ns), low incremental surge resistance, and stable clamping across -65 °C to +175 °C operating range - meeting AEC-Q101 stress test requirements for automotive electronics and industrial control systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VRWM) | 8.5 V - maximum continuous reverse working voltage before leakage exceeds 0.1 μA |
| Breakdown Voltage (VBR) | 9.44–10.5 V at 1 mA - ensures reliable triggering above normal signal swing |
| Clamping Voltage (VC) | 14.4 V max at 13.9 A (10/1000 μs) - limits transient voltage seen by protected IC |
| Peak Pulse Power | 200 W (10/1000 μs) - sustains short-duration surges without degradation |
| Capacitance (CD) | 674 pF at 0 V, 1 MHz - low enough for USB 2.0 (480 Mbps) and CAN FD signal integrity |
| ESD Rating | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - exceeds Level 4 immunity requirements |
| Junction Temp Range | -65 °C to +175 °C - supports under-hood automotive and industrial environments |
Pinout & Package
The SMF8V5A-M3-08 uses the DO-219AB (SMF) package: low-profile (1.08 mm height), SOD-123W-compatible footprint, cathode-bar marked, and qualified for wave and reflow soldering per J-STD-020 MSL level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input side for transient path | Connected to protected line; conducts during negative transients (for unidirectional operation) |
| Cathode | Clamp reference node | Connected to ground or common return; defines polarity and sets clamping threshold |
Key Features
| Feature | Design Value |
|---|---|
| Low-Noise Fast Response | Sub-nanosecond turn-on enables protection of high-speed digital interfaces without signal jitter |
| AEC-Q101 Qualified | Validated for automotive-grade reliability including HTOL, temperature cycling, and ESD stress |
| SOD-123W Footprint Compatibility | Enables drop-in replacement or layout reuse with industry-standard 3.9 × 1.9 mm land pattern |
| UL 94 V-0 Mold Compound | Ensures flame-retardant PCB mounting in safety-critical applications like ADAS and body control modules |
Applications
| USB 2.0 Interface Protection | HDMI Data Line Protection |
|---|---|
Use Scenario: Protecting D+ and D- lines in portable USB peripherals against ESD events during hot-plug insertion. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between data line and chassis ground to shunt ESD energy before it reaches the USB transceiver. Use Value: 674 pF capacitance avoids signal rise-time degradation; 14.4 V clamping prevents damage to 3.3 V tolerant PHY inputs. | Use Scenario: Safeguarding TMDS clock and data channels in automotive head units exposed to human-body ESD during panel interaction. IC Role / Device Role / Timing Role: Standoff-rated transient suppressor mounted directly at HDMI connector to minimize inductance in the protection path. Use Value: ±30 kV contact discharge rating meets ISO 10605 requirements; 175 °C junction rating supports under-dash thermal environments. |
| Automotive Infotainment Display | Industrial CAN FD Bus Node |
Use Scenario: Shielding LVDS or MIPI DSI signal pairs driving TFT displays in vehicle dashboards from cable-discharge events. IC Role / Device Role / Timing Role: Low-capacitance bidirectional-capable (unidirectional variant used with proper grounding) ESD clamp on differential pairs. Use Value: 1.08 mm profile fits tight board space behind display bezels; AEC-Q101 qualification ensures long-term field reliability. | Use Scenario: Protecting CAN FD transceivers in factory automation controllers connected to long cable runs susceptible to induced surges. IC Role / Device Role / Timing Role: Primary front-end transient suppressor on CANH/CANL lines, placed before common-mode choke. Use Value: 200 W peak pulse power handles IEC 61000-4-5 surge coupling; 13.9 A IPPM rating covers worst-case 10/1000 μs threats. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.5A | Higher clamping voltage (15.0 V), larger SMA (DO-214AC) package (4.5 × 2.7 mm), 1000 W peak power (8/20 μs) | Better suited for higher-energy surges but adds 3× more capacitance (1000 pF); less ideal for >100 Mbps signals | Select SMAJ8.5A only when surge energy exceeds 200 W or board space allows larger footprint. |
| TPD2E001DRYR | Two-channel, 15 pF per line, integrated ESD array; requires 3.3 V bias; not AEC-Q101 qualified | Designed for ultra-high-speed USB 3.0/PCIe; lacks automotive qualification and standalone surge robustness | Choose TPD2E001DRYR for compact dual-line protection in consumer electronics where AEC-Q101 is not required. |
Compared with SMAJ8.5A and TPD2E001DRYR, the SMF8V5A-M3-08 delivers optimal balance of low capacitance, automotive qualification, and compact DO-219AB packaging - making it preferred for cost-sensitive, space-constrained, and thermally demanding automotive and industrial signal-line protection.
Availability
SMF8V5A-M3-08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, automotive infotainment display circuits, and industrial CAN FD bus nodes requiring stable component supply and long-term lifecycle support.
Supply support for SMF8V5A-M3-08 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 signal line protection with AEC-Q101 qualification, low capacitance, and robust ESD/surge performance - engineered specifically for next-generation automotive infotainment, ADAS sensor interfaces, and industrial IoT connectivity.
FAQ
What is the maximum clamping voltage of the SMF8V5A-M3-08 under standard surge conditions?
The SMF8V5A-M3-08 has a maximum clamping voltage of 14.4 V when subjected to a 13.9 A peak pulse current with a 10/1000 μs waveform. This value is measured per IEC 61000-4-5 test conditions and ensures downstream ICs rated for ≤15 V absolute maximum are protected. The clamping performance is guaranteed across its full operating temperature range from -65 °C to +175 °C.
Is the SMF8V5A-M3-08 qualified for automotive applications?
Yes, the SMF8V5A-M3-08 is AEC-Q101 qualified, having passed stress tests including high-temperature operating life, temperature cycling, and ESD robustness per human-body model (>8 kV) and IEC 61000-4-2 (±30 kV contact/air). Its -65 °C to +175 °C operating range and DO-219AB package make it suitable for under-hood and cabin-mounted automotive electronics.
What is the capacitance of the SMF8V5A-M3-08 and how does it affect high-speed signal integrity?
The SMF8V5A-M3-08 exhibits 674 pF typical capacitance at 0 V and 1 MHz. This low value minimizes loading on high-speed lines such as USB 2.0 (480 Mbps) and CAN FD (up to 5 Mbps), preserving signal edge rates and reducing bit-error risk. Capacitance drops further at operating bias voltages, enhancing performance in real-world signal-path configurations.
Can the SMF8V5A-M3-08 be used in bidirectional protection configurations?
No - the SMF8V5A-M3-08 is a unidirectional TVS diode, intended for clamping positive transients relative to ground. For bidirectional protection (e.g., AC-coupled lines), two SMF8V5A-M3-08 devices must be connected anode-to-anode or a dedicated bidirectional part like SMBJ8.5CA should be selected instead.
What is the recommended PCB footprint for the SMF8V5A-M3-08?
The SMF8V5A-M3-08 uses the DO-219AB package and is compatible with the SOD-123W footprint: 2.9 mm × 1.4 mm pad length/width, 1.3 mm pad spacing, and 1.3 mm pad extension beyond chip ends. Vishay provides detailed land pattern recommendations in document S8-V-3915.01-001, supporting both reflow and wave soldering processes.
SMF8V5A-M3-08 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):
- 8.5V
- Voltage - Breakdown (Min):
- 9.44V
- Voltage - Clamping (Max) @ Ipp:
- 14.4V
- Current - Peak Pulse (10/1000µs):
- 13.9A
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 674pF @ 1MHz
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
SMF8V5A-M3-08 FAQ
1.How can I place an order for SMF8V5A-M3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF8V5A-M3-08 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 SMF8V5A-M3-08 reliable?
The price and inventory of SMF8V5A-M3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF8V5A-M3-08 is usually 5 days.
3.What payment methods are accepted for SMF8V5A-M3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF8V5A-M3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF8V5A-M3-08?
SMF8V5A-M3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF8V5A-M3-08 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 SMF8V5A-M3-08?
For technical support, including SMF8V5A-M3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF8V5A-M3-08 requirements.
6.How does Aetrix verify that SMF8V5A-M3-08 is sourced from the original manufacturer or authorized distributors?
All SMF8V5A-M3-08 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 SMF8V5A-M3-08 meets industry standards.
7.What is the process for return or replacement of SMF8V5A-M3-08?
All SMF8V5A-M3-08 units undergo pre-shipment inspection (PSI). If there is an issue with SMF8V5A-M3-08, 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 SMF8V5A-M3-08 part is unused and in its original packaging.
Return procedure for SMF8V5A-M3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF8V5A-M3-08 Tags
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