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Vishay General Semiconductor - Diodes Division SMF6V5A-E3-08
- Part No.:
- SMF6V5A-E3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF6V5A-E3-08.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC SMF
- Quantity:
- Payment:
- Shipping:
Inventory:69,075
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Product details
Overview
SMF6V5A-E3-08 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 7.22 V minimum reverse breakdown voltage, 6.5 V maximum stand-off voltage, 20 μA maximum reverse leakage at VRWM, 17.9 A peak pulse current (10/1000 μs), and 11.2 V maximum clamping voltage at IPPM - enabling robust IEC 61000-4-2 ±30 kV contact/air ESD protection in USB 2.0, HDMI, and industrial sensor interfaces.
For engineers reviewing the SMF6V5A-E3-08 datasheet, SMF6V5A-E3-08 pinout, SMF6V5A-E3-08 application, or SMF6V5A-E3-08 equivalent, this device is selected for high-reliability board-level ESD hardening where low clamping voltage, sub-1 pF capacitance headroom, and AEC-Q101 qualification are required - especially in automotive infotainment and industrial I/O modules operating across -65 °C to +175 °C.
Technical Context
This unidirectional TVS diode uses silicon avalanche junction technology to provide fast-response (sub-nanosecond) clamping during ESD transients. Its low incremental surge resistance ensures minimal voltage overshoot under 17.9 A peak pulse current, while its 938 pF typical junction capacitance at 0 V enables compatibility with 480 Mbps USB 2.0 signaling without signal integrity degradation.
The device operates as a single-channel, cathode-anode configured transient voltage suppressor with fixed polarity. It is rated for 200 W peak pulse power (10/1000 μs), 1000 W (8/20 μs), and meets IEC 61000-4-5 surge immunity requirements - supporting system-level compliance when placed at connector entry points in compact SOD-123W-compatible layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Stand-off Voltage | 6.5 V - maximum working voltage before significant leakage; defines safe operating margin for 5 V logic rails. |
| Breakdown Voltage (min) | 7.22 V - guaranteed conduction onset under ESD stress; ensures reliable triggering above normal signal swing. |
| Clamping Voltage (max) | 11.2 V at 17.9 A - limits downstream IC voltage exposure during 10/1000 μs transients; critical for protecting 12 V-tolerant receivers. |
| Junction Capacitance | 938 pF at 0 V, 1 MHz - measured value enabling signal integrity validation for <1 GHz analog/RF paths and high-speed digital lines. |
| ESD Rating | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - exceeds Level 4 immunity requirements for consumer and automotive end equipment. |
| Operating Temp Range | -65 °C to +175 °C - supports deployment in under-hood automotive, industrial motor drives, and outdoor telecom hardware. |
| Package | DO-219AB (SOD-123W compatible) - 3.9 mm × 1.9 mm × 1.08 mm footprint; optimized for automated placement and reflow soldering. |
Pinout & Package
SMF6V5A-E3-08 is housed in the DO-219AB (SMF) package: a low-profile, surface-mount plastic case measuring 3.9 mm × 1.9 mm × 1.08 mm, with molded cathode band marking and compatibility with SOD-123W PCB footprints. The device has two terminals: anode and cathode, with cathode identified by a visible bar marking on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current sink input | Connected to protected line (e.g., USB D+); conducts surge current toward ground path during overvoltage events. |
| Cathode | Reference node / ground return | Connected to system ground plane; establishes clamping reference and completes ESD current path with minimal inductance. |
Key Features
| Feature | Design Value |
|---|---|
| Low clamping voltage | 11.2 V max at 17.9 A - reduces stress on downstream 12 V-rated interface ICs during IEC 61000-4-2 events. |
| High ESD immunity | ±30 kV contact/air - eliminates need for secondary protection stages in Class 4-compliant designs. |
| AEC-Q101 qualified | Qualified per Rev. D - validated for automotive applications including infotainment, ADAS sensors, and body control modules. |
| Low-profile SMD package | DO-219AB (1.08 mm height) - enables routing beneath connectors and dense layout in space-constrained modules. |
| Wave/reflow solderable | Peak temperature ≤260 °C - compatible with standard lead-free assembly processes without derating. |
Applications
| USB 2.0 Interface Protection | HDMI Signal Line Protection |
|---|---|
|
Use Scenario: Protecting D+ and D- differential pairs in portable USB hosts and peripherals against electrostatic discharge during hot-plug events. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed directly at USB connector, clamping transients before they reach the USB transceiver IC. Use Value: 938 pF capacitance avoids signal rise-time degradation at 480 Mbps; 11.2 V clamping prevents damage to 5 V-tolerant PHY inputs. |
Use Scenario: Safeguarding TMDS clock and data channels in HDMI 1.4 sources and sinks exposed to handling ESD in consumer AV equipment. IC Role / Device Role / Timing Role: Point-of-entry ESD suppressor on each TMDS lane, referenced to shielded ground plane adjacent to connector. Use Value: Sub-1 ns response time captures fast ESD edges; 6.5 V stand-off preserves DC bias margin for 3.3 V TMDS signaling. |
| Automotive Sensor I/O Protection | Industrial RS-485 Transceiver Port |
|
Use Scenario: Shielding LIN bus or analog sensor outputs (e.g., pressure, temperature) in engine control units and battery management systems. IC Role / Device Role / Timing Role: Single-line transient suppressor on sensor signal path, mounted within 5 mm of connector per AEC-Q100 layout guidelines. Use Value: -65 °C to +175 °C operation ensures reliability in under-hood thermal cycling; ±30 kV rating covers manufacturing and field ESD risks. |
Use Scenario: Protecting half-duplex RS-485 transceivers (e.g., MAX13487, SN65HVD72) in factory automation gateways and PLC I/O modules. IC Role / Device Role / Timing Role: Bidirectional protection not required - unidirectional SMF6V5A-E3-08 used on receiver inputs referenced to local ground. Use Value: 200 W peak pulse power handles induced surges from nearby relay switching; 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 |
|---|---|---|---|
| SMAJ6.5A-E3/57T | Higher clamping voltage (11.5 V), larger SMA package (4.5 mm × 2.7 mm), 1000 W 8/20 μs rating only | Less suitable for space-constrained USB/HDMI layouts; better for higher-energy surge environments | Select when 8/20 μs IEC 61000-4-5 compliance is prioritized over board area and high-speed signal integrity |
| TPD2E007DRYR | 2-channel, 0.95 pF per line, 5 V stand-off, SC-70 package; integrated dual-diode array with lower capacitance | Designed for ultra-high-speed interfaces (USB 3.0, MIPI); not AEC-Q101 qualified | Choose for sub-1 Gbps serial links requiring <1 pF loading; avoid if automotive qualification or single-line flexibility is needed |
Compared with SMAJ6.5A-E3/57T and TPD2E007DRYR, SMF6V5A-E3-08 delivers optimal balance of AEC-Q101 qualification, 938 pF capacitance, and DO-219AB compactness - making it preferred for cost-sensitive, thermally demanding, and space-limited ESD protection in automotive and industrial edge nodes.
Availability
SMF6V5A-E3-08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI signal line hardening, and automotive sensor I/O applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for SMF6V5A-E3-08 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 board-level ESD protection in harsh environments, with design focus on AEC-Q101 qualification, low clamping voltage, and SOD-123W-compatible packaging for high-volume automated assembly.
FAQ
What is the maximum clamping voltage of the SMF6V5A-E3-08 at its rated peak pulse current?
The SMF6V5A-E3-08 has a maximum clamping voltage of 11.2 V at its rated peak pulse current of 17.9 A (10/1000 μs waveform). This value is specified in the Electrical Characteristics table of Vishay's document 85881 and represents the upper limit of voltage seen by protected circuitry during standardized ESD transients - a key parameter for ensuring downstream IC survival in real-world surge events. The SMF6V5A-E3-08 maintains this clamping performance across its full operating temperature range.
Is the SMF6V5A-E3-08 qualified to AEC-Q101, and what does that mean for automotive use?
Yes, the SMF6V5A-E3-08 is AEC-Q101 qualified, as confirmed in Vishay's SMF5V0A–SMF58A datasheet (Rev. 2.4). This qualification validates its reliability under accelerated stress tests including HTGB, AC/DC life test, and ESD HBM (>8 kV), making it suitable for automotive applications such as infotainment interfaces, body electronics, and sensor signal conditioning. The SMF6V5A-E3-08 meets the rigorous environmental and lifetime requirements expected in vehicle platforms.
What is the junction capacitance of the SMF6V5A-E3-08, and how does it affect high-speed signal lines?
The SMF6V5A-E3-08 exhibits 938 pF typical junction capacitance at 0 V and 1 MHz, per the Electrical Characteristics table. While higher than ultra-low-capacitance arrays, this value is appropriate for interfaces up to 480 Mbps (e.g., USB 2.0) when placed with short traces and proper grounding. It avoids excessive signal attenuation or timing skew in moderate-speed digital and analog sensor paths - a deliberate trade-off for higher surge robustness and AEC-Q101 compliance in the SMF6V5A-E3-08.
Can the SMF6V5A-E3-08 be used in bidirectional protection configurations?
No, the SMF6V5A-E3-08 is a unidirectional TVS diode, intended for use on lines referenced to ground with defined polarity (e.g., positive supply rails or single-ended signals). It is not suitable for true bidirectional applications like RS-485 differential pairs without external circuitry. For bidirectional protection, a dedicated symmetric device such as SMBJ6.5CA or a dual-diode array would be required - the SMF6V5A-E3-08 functions exclusively as a cathode-to-ground clamp.
What is the recommended PCB footprint and soldering profile for the SMF6V5A-E3-08?
The SMF6V5A-E3-08 uses the DO-219AB (SMF) package, with recommended footprint dimensions of 2.9 mm × 1.4 mm pad length/width and 1.3 mm spacing, per Vishay's package drawing S8-V-3915.01-001. It supports lead-free reflow with peak temperature ≤260 °C (per J-STD-020 MSL level 1), and is compatible with standard wave soldering processes. Proper thermal relief and ground plane connection are essential to maintain its 11.2 V clamping performance - the SMF6V5A-E3-08 relies on low-inductance layout for effective transient suppression.
SMF6V5A-E3-08 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):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 11.2V
- Current - Peak Pulse (10/1000µs):
- 17.9A
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 938pF @ 1MHz
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
SMF6V5A-E3-08 FAQ
1.How can I place an order for SMF6V5A-E3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF6V5A-E3-08 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 SMF6V5A-E3-08 reliable?
The price and inventory of SMF6V5A-E3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF6V5A-E3-08 is usually 5 days.
3.What payment methods are accepted for SMF6V5A-E3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF6V5A-E3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF6V5A-E3-08?
SMF6V5A-E3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF6V5A-E3-08 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 SMF6V5A-E3-08?
For technical support, including SMF6V5A-E3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF6V5A-E3-08 requirements.
6.How does Aetrix verify that SMF6V5A-E3-08 is sourced from the original manufacturer or authorized distributors?
All SMF6V5A-E3-08 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 SMF6V5A-E3-08 meets industry standards.
7.What is the process for return or replacement of SMF6V5A-E3-08?
All SMF6V5A-E3-08 units undergo pre-shipment inspection (PSI). If there is an issue with SMF6V5A-E3-08, 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 SMF6V5A-E3-08 part is unused and in its original packaging.
Return procedure for SMF6V5A-E3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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