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Vishay General Semiconductor - Diodes Division SMF8V5A-HM3-08
- Part No.:
- SMF8V5A-HM3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF8V5A-HM3-08.pdf
- Description:
- TVS DIODE 8.5VWM 14.4VC SMF
- Quantity:
- Payment:
- Shipping:
Inventory:3,738
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Product details
Overview
SMF8V5A-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 8.5 V stand-off voltage, 9.44–10.5 V reverse breakdown at 1 mA, 13.9 A peak pulse current (10/1000 μs), 14.4 V maximum clamping voltage at IPPM, and 674 pF typical capacitance at 0 V / 1 MHz - deployed in USB 2.0, HDMI, and industrial sensor interfaces.
For engineers reviewing the SMF8V5A-HM3-08 datasheet, SMF8V5A-HM3-08 pinout, SMF8V5A-HM3-08 application, or SMF8V5A-HM3-08 equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, SOD-123W-compatible packaging, IEC 61000-4-2 ±30 kV ESD immunity, and design-meaningful clamping behavior for signal integrity-critical layouts.
Technical Context
This device operates as a single-channel unidirectional TVS diode optimized for fast response to electrostatic discharge events. Its "Low Noise" technology ensures sub-nanosecond response time, while low incremental surge resistance enables tight clamping with minimal voltage overshoot during 10/1000 μs transients.
The SMF8V5A-HM3-08 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 test requirements including human body model class H3B (>8 kV), making it suitable for automotive infotainment and under-hood sensor protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 8.5 V - maximum continuous reverse voltage before significant leakage; sets upper limit for normal signal swing in protected line |
| Breakdown Voltage (VBR) | 9.44–10.5 V at 1 mA - precise threshold where avalanche conduction begins; defines minimum trigger margin above VRWM |
| Clamping Voltage (VC) | 14.4 V at 13.9 A (10/1000 μs) - actual voltage seen by downstream IC during surge; critical for ensuring I/O tolerance compliance |
| Capacitance (CD) | 674 pF at 0 V / 1 MHz - directly impacts signal rise/fall time degradation on high-speed lines like USB 2.0 (480 Mbps) |
| ESD Immunity | ±30 kV contact & air discharge (IEC 61000-4-2) - exceeds Level 4 immunity requirement for consumer and industrial end-equipment |
| Peak Pulse Power | 200 W (10/1000 μs) - energy-handling capability sufficient for most board-level ESD events without thermal runaway |
| Operating Temperature | −65 °C to +175 °C - supports extended-range deployment in automotive engine control units and industrial PLCs |
Pinout & Package
SMF8V5A-HM3-08 uses the DO-219AB (SMF) package: low-profile (1.08 mm max height), SOD-123W-compatible outline, cathode-bar marked, with 3.9 mm × 1.9 mm footprint and 15 mg weight. Designed for automated placement and reflow compatibility up to 260 °C peak.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input side of protected line | Connected to signal trace upstream of IC; conducts surge current toward ground when clamped |
| Cathode | Ground reference node | Must be tied to low-impedance system ground plane; determines unidirectional polarity and clamping direction |
Key Features
| Feature | Design Value |
|---|---|
| 200 W peak pulse power (10/1000 μs) | Enables robust protection against repetitive ESD events without derating or thermal failure in compact PCB layouts |
| ±30 kV IEC 61000-4-2 ESD immunity | Guarantees survival and functional continuity after worst-case contact/air discharge in handheld and industrial equipment |
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, mechanical shock, and humidity testing per stress test standard |
| Low-profile DO-219AB package | Reduces board space and parasitic inductance vs. larger packages (e.g., SMA), improving high-frequency clamping fidelity |
| "Low Noise" fast-response technology | Sub-ns turn-on minimizes voltage overshoot during fast-rising ESD pulses, preserving signal integrity on high-speed buses |
Applications
| USB 2.0 Data Lines | HDMI Interface Protection |
|---|---|
Use Scenario: Protecting D+ and D− differential pair in portable media devices and docking stations from user-handling ESD. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between connector and USB transceiver IC to clamp surges before they reach PHY pins. Use Value: 674 pF capacitance avoids signal distortion at 480 Mbps; 14.4 V clamping stays below typical 16 V absolute max rating of USB PHY I/O cells. | Use Scenario: Safeguarding TMDS clock and data channels in flat-panel displays and set-top boxes exposed to field ESD. IC Role / Device Role / Timing Role: Single-channel ESD suppressor on each TMDS lane, grounded via shortest possible path to minimize loop inductance. Use Value: Low 1.08 mm height prevents interference with adjacent connectors; ±30 kV rating exceeds IEC 61000-4-2 Level 4 required for CE-marked AV equipment. |
| Automotive Infotainment | Industrial Sensor Interfaces |
Use Scenario: Shielding USB-C and audio jack lines in head units subjected to cabin ESD and thermal cycling. IC Role / Device Role / Timing Role: AEC-Q101-qualified unidirectional TVS mounted near connector to shunt transients before entering SoC or codec. Use Value: −65 °C to +175 °C operating range accommodates under-dash mounting; 8.5 V VRWM matches 5 V/3.3 V rail logic levels. | Use Scenario: Protecting RS-485, CAN FD, or analog sensor outputs in factory automation controllers exposed to maintenance ESD. IC Role / Device Role / Timing Role: Standoff-rated TVS on signal lines interfacing with external field wiring, referenced to local ground. Use Value: 200 W pulse power handles induced surges from nearby relay switching; DO-219AB footprint fits dense industrial PCB routing. |
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-E3/5A | Higher clamping voltage (15.0 V), larger SMA package (4.5 mm × 2.7 mm), 600 W peak power (10/1000 μs) | Better for higher-energy surges but adds 2× board area and ~15% higher clamping voltage | Select when surge energy exceeds 200 W or legacy SMA footprint is fixed |
| TPD2E001DRYR | Bi-directional dual-channel array, 12 pF capacitance, 5.5 V VRWM, integrated 10 Ω series resistors | Optimized for ultra-high-speed USB 2.0/3.0 with minimal capacitance; not AEC-Q101 qualified | Select when <20 pF capacitance is mandatory and automotive qualification is not required |
Compared with SMAJ8.5A-E3/5A and TPD2E001DRYR, the SMF8V5A-HM3-08 uniquely balances AEC-Q101 qualification, 674 pF capacitance, DO-219AB space efficiency, and 14.4 V clamping - making it optimal for cost-sensitive, thermally constrained automotive and industrial data-line protection where moderate bandwidth suffices.
Availability
SMF8V5A-HM3-08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI channel safeguarding, and automotive infotainment systems requiring stable component supply across production lifecycles.
Supply support for SMF8V5A-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 Intertechnology is a global semiconductor manufacturer specializing in discrete components, sensors, and passive elements, with leadership in reliability-tested protection devices.
The SMF series targets high-reliability ESD suppression in space-constrained, thermally demanding environments - engineered specifically for automotive, industrial, and consumer interfaces where AEC-Q101 validation and consistent clamping performance are non-negotiable.
FAQ
What is the clamping voltage of the SMF8V5A-HM3-08 at its rated peak pulse current?
The SMF8V5A-HM3-08 has a maximum clamping voltage (VC) of 14.4 V at 13.9 A peak pulse current with a 10/1000 μs waveform. This value represents the highest voltage that will appear across the protected line during a standardized surge event, ensuring downstream ICs with ≤16 V absolute maximum ratings remain within safe operating limits. The SMF8V5A-HM3-08 achieves this with low incremental surge resistance and fast avalanche response.
Is the SMF8V5A-HM3-08 qualified to AEC-Q101 for automotive use?
Yes, the SMF8V5A-HM3-08 is AEC-Q101 qualified, having passed stress tests including human body model (HBM) Class H3B (>8 kV), temperature cycling, mechanical shock, and humidity testing. This qualification confirms suitability for automotive applications such as infotainment, body control modules, and sensor interfaces where reliability under thermal and electrical stress is critical. The SMF8V5A-HM3-08 datasheet explicitly states AEC-Q101 availability.
What does the "HM3-08" suffix indicate in SMF8V5A-HM3-08?
The "HM3-08" suffix denotes Vishay's packaging and environmental coding: "H" indicates AEC-Q101 qualification, "M3" specifies lead (Pb)-free, RoHS-compliant tin plating, and "08" identifies 3,000 pieces per 7-inch reel with 8 mm tape width. This full ordering code ensures traceability, compliance, and compatibility with automated SMT assembly processes. The SMF8V5A-HM3-08 is supplied in moisture-sensitive level 1 packaging per J-STD-020.
How does the capacitance of SMF8V5A-HM3-08 affect high-speed signal integrity?
The SMF8V5A-HM3-08 exhibits 674 pF typical capacitance at 0 V and 1 MHz, which introduces measurable loading on high-speed signals - acceptable for USB 2.0 (480 Mbps) and RS-485 but limiting for USB 3.0 or HDMI 2.0+. Designers must account for this capacitance in eye diagram analysis and ensure trace impedance remains stable. The SMF8V5A-HM3-08's low-profile DO-219AB package helps minimize parasitic inductance, partially offsetting capacitive effects.
Can SMF8V5A-HM3-08 replace SMF8V0A-HM3-08 in an existing design?
Yes, the SMF8V5A-HM3-08 can replace SMF8V0A-HM3-08 with minor layout review: both share identical DO-219AB package, pinout, and thermal characteristics, but SMF8V5A-HM3-08 has a 8.5 V stand-off voltage (vs. 8.0 V) and slightly higher breakdown (9.44–10.5 V vs. 8.89–9.9 V). This provides tighter margin against false triggering on 3.3 V or 5 V rails while maintaining same clamping performance. The SMF8V5A-HM3-08 is a direct functional upgrade in most ESD protection roles.
SMF8V5A-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):
- 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:
- -
- Capacitance @ Frequency:
- 674pF @ 1MHz
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
SMF8V5A-HM3-08 FAQ
1.How can I place an order for SMF8V5A-HM3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF8V5A-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 SMF8V5A-HM3-08 reliable?
The price and inventory of SMF8V5A-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 SMF8V5A-HM3-08 is usually 5 days.
3.What payment methods are accepted for SMF8V5A-HM3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF8V5A-HM3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF8V5A-HM3-08?
SMF8V5A-HM3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF8V5A-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 SMF8V5A-HM3-08?
For technical support, including SMF8V5A-HM3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF8V5A-HM3-08 requirements.
6.How does Aetrix verify that SMF8V5A-HM3-08 is sourced from the original manufacturer or authorized distributors?
All SMF8V5A-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 SMF8V5A-HM3-08 meets industry standards.
7.What is the process for return or replacement of SMF8V5A-HM3-08?
All SMF8V5A-HM3-08 units undergo pre-shipment inspection (PSI). If there is an issue with SMF8V5A-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 SMF8V5A-HM3-08 part is unused and in its original packaging.
Return procedure for SMF8V5A-HM3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF8V5A-HM3-08 Tags
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