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Vishay General Semiconductor - Diodes Division SMF5V0A-E3-18
- Part No.:
- SMF5V0A-E3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF5V0A-E3-18.pdf
- Description:
- TVS DIODE 5VWM 9.2VC SMF
- Quantity:
- Payment:
- Shipping:
Inventory:48,865
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Product details
Overview
SMF5V0A-E3-18 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 5.0 V stand-off voltage (VRWM), 6.4 V minimum breakdown voltage (VBR), 9.2 V maximum clamping voltage at 21.7 A peak pulse current, and 1120 pF typical junction capacitance at 0 V - optimized for USB 2.0, HDMI, and industrial sensor interfaces.
For engineers reviewing the SMF5V0A-E3-18 datasheet, SMF5V0A-E3-18 pinout, SMF5V0A-E3-18 application, or SMF5V0A-E3-18 equivalent, key selection criteria include IEC 61000-4-2 ±30 kV contact/air discharge rating, AEC-Q101 qualification, SOD-123W-compatible footprint, and low incremental surge resistance for fast clamping in automotive infotainment and industrial I/O protection.
Technical Context
This device operates as a single-channel unidirectional TVS diode with avalanche breakdown behavior, delivering precise voltage clamping during ESD transients. Its low 1.08 mm profile and DO-219AB case outline support high-density PCB layouts while maintaining thermal resistance of 180 K/W on standard epoxy-glass substrates.
The SMF5V0A-E3-18 uses "Low Noise" silicon technology enabling sub-nanosecond response time and stable clamping under 10/1000 μs surge waveforms. It meets AEC-Q101 Class H3B (>8 kV HBM) and supports reflow/wave soldering per J-STD-020 MSL Level 1 conditions up to 260 °C peak temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 5.0 V - ensures no conduction during normal signal operation up to 5 V DC or peak AC swing |
| Breakdown Voltage (VBR) | 6.4–7.1 V at 10 mA - defines reliable avalanche initiation threshold for ESD clamping |
| Clamping Voltage (VC) | 9.2 V max at 21.7 A IPPM - limits downstream IC stress during 10/1000 μs transients |
| Junction Capacitance (CD) | 1120 pF at 0 V, 1 MHz - compatible with USB 2.0 (480 Mbps) and RS-485 signaling integrity |
| ESD Rating | ±30 kV contact & air (IEC 61000-4-2) - exceeds Level 4 immunity requirements for end-equipment certification |
| Package | DO-219AB (SOD-123W-compatible) - 3.9 × 1.9 × 1.08 mm footprint with cathode bar marking |
| Operating Temp | −65 °C to +175 °C - supports under-hood automotive and industrial ambient environments |
Pinout & Package
The SMF5V0A-E3-18 is a two-terminal unidirectional TVS diode in the DO-219AB (SMF) package. Cathode is marked by a bar on the top surface; anode is unmarked. The device mounts in-line with protected signal paths and requires no biasing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side terminal | Connected to signal line being protected; conducts during reverse-transient overvoltage |
| Cathode | Ground/reference side terminal | Connected to system ground or low-impedance return path; establishes clamping reference point |
Key Features
| Feature | Design Value |
|---|---|
| 200 W Peak Pulse Power (10/1000 μs) | Enables robust protection against multiple ESD events without degradation in compact form factor |
| ±30 kV ESD Immunity (IEC 61000-4-2) | Meets highest industrial and automotive ESD test levels without external circuitry |
| AEC-Q101 Qualified | Validated for automotive applications including infotainment, body control, and ADAS sensor interfaces |
| Low Incremental Surge Resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns rise time), improving clamping precision |
| Solder Reflow Compatible (260 °C) | Supports automated assembly in high-volume manufacturing without thermal damage risk |
Applications
| USB 2.0 Interface Protection | HDMI Signal Line Protection |
|---|---|
Use Scenario: Protecting D+ and D− differential pairs in portable USB peripherals against user-handling ESD. IC Role / Device Role / Timing Role: Unidirectional TVS placed directly at connector entry point to clamp transients before reaching USB transceiver. Use Value: 1120 pF capacitance avoids signal integrity loss at 480 Mbps; 9.2 V clamping prevents damage to 3.3 V tolerant PHYs. | Use Scenario: Safeguarding TMDS clock and data channels in HDMI source devices (e.g., set-top boxes, GPUs) from cable-discharge events. IC Role / Device Role / Timing Role: Discrete ESD suppressor mounted adjacent to HDMI receptacle to limit voltage excursion during hot-plug or handling. Use Value: Low 1.08 mm height allows placement in tight connector keep-out zones; ±30 kV rating covers worst-case IEC 61000-4-2 testing. |
| Automotive Sensor I/O Protection | Industrial RS-485 Transceiver Port |
Use Scenario: Shielding analog/digital outputs of pressure, temperature, or position sensors in engine control units and ADAS modules. IC Role / Device Role / Timing Role: Standoff-rated TVS on sensor output lines to prevent latch-up or gate oxide failure in downstream MCUs. Use Value: −65 °C to +175 °C operating range matches under-hood thermal profiles; AEC-Q101 qualification confirms reliability for 15-year vehicle life. | Use Scenario: Guarding half-duplex RS-485 bus lines (A/B) in factory automation controllers exposed to long cable runs and ground potential differences. IC Role / Device Role / Timing Role: Bidirectional-capable protection via dual unidirectional configuration (anode-to-ground + cathode-to-ground) or single-device use on common-mode lines. Use Value: 200 W pulse power handles induced surges from nearby motor switching; DO-219AB package fits standard 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 |
|---|---|---|---|
| SMAJ5.0A | Higher clamping voltage (11.2 V), larger SMA (DO-214AC) package (4.5 × 2.7 × 2.2 mm) | Less suitable for space-constrained USB/HDMI layouts; better for higher-energy surges | Select SMAJ5.0A only when board area permits and clamping voltage margin >6.2 V is acceptable |
| TPD2E001DRYR | Integrated dual-channel, 15 pF ultra-low capacitance, but rated only to ±8 kV HBM (not IEC 61000-4-2) | Designed for high-speed digital interfaces (e.g., USB 3.0, MIPI); lacks full-system ESD certification | Choose TPD2E001DRYR for bandwidth-critical designs where <20 pF is mandatory and system-level ESD is handled elsewhere |
Compared with SMAJ5.0A and TPD2E001DRYR, the SMF5V0A-E3-18 uniquely balances certified ±30 kV IEC 61000-4-2 immunity, compact DO-219AB footprint, and predictable 9.2 V clamping - making it optimal for cost-sensitive, space-limited automotive and industrial interface protection where full system-level ESD compliance is required.
Availability
SMF5V0A-E3-18 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI signal line safeguarding, and automotive sensor I/O applications requiring stable component supply across production lifecycles.
Supply support for SMF5V0A-E3-18 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-profile packaging, and guaranteed IEC 61000-4-2 performance - engineered specifically for next-generation infotainment, ADAS, and industrial communication interfaces.
FAQ
What is the clamping voltage of the SMF5V0A-E3-18 at its rated peak pulse current?
The SMF5V0A-E3-18 has a maximum clamping voltage (VC) of 9.2 V at 21.7 A peak pulse current (IPPM) under 10/1000 μs waveform conditions. This value ensures protected downstream ICs - such as USB transceivers rated for 3.3 V or 5 V operation - remain within safe voltage stress limits during ESD events. The SMF5V0A-E3-18 achieves this with low incremental surge resistance and fast avalanche response.
Is the SMF5V0A-E3-18 qualified for automotive applications?
Yes, the SMF5V0A-E3-18 is AEC-Q101 qualified and rated for human body model (HBM) Class H3B (>8 kV). It is explicitly designed for automotive use cases including infotainment systems, body control modules, and sensor interfaces. Its −65 °C to +175 °C operating temperature range and DO-219AB package stability under thermal cycling further validate its suitability for under-hood and cabin-mounted electronics.
What package type does the SMF5V0A-E3-18 use, and how does it compare to SOD-123W?
The SMF5V0A-E3-18 uses the DO-219AB package (also branded as SMF), measuring 3.9 × 1.9 × 1.08 mm. Vishay documentation confirms compatibility with SOD-123W, SOD-123F, and SOD-123FL footprints - meaning existing PCB land patterns for those packages can accommodate the SMF5V0A-E3-18 without redesign. The cathode is marked by a bar on the top surface, consistent with industry-standard polarity identification.
Does the SMF5V0A-E3-18 meet IEC 61000-4-2 ESD immunity standards?
Yes, the SMF5V0A-E3-18 is rated for ±30 kV contact discharge and ±30 kV air discharge per IEC 61000-4-2 (10 pulses). This exceeds Level 4 - the highest severity class - and enables system-level compliance without additional protection stages. The device's "Low Noise" silicon technology contributes to sub-nanosecond response, ensuring clamping occurs before transient energy couples into sensitive circuitry.
What is the junction capacitance of the SMF5V0A-E3-18, and how does it affect high-speed signal integrity?
The SMF5V0A-E3-18 has a typical junction capacitance of 1120 pF at 0 V and 1 MHz. While higher than ultra-low-capacitance TVS devices, this value is carefully balanced to maintain effective ESD clamping while remaining compatible with USB 2.0 (480 Mbps) and RS-485 signaling. At typical operating voltages (e.g., 3.3 V or 5 V DC bias), capacitance drops significantly - preserving signal edge rates and minimizing jitter in protected data paths.
SMF5V0A-E3-18 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):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 21.7A
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 1120pF @ 1MHz
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
SMF5V0A-E3-18 FAQ
1.How can I place an order for SMF5V0A-E3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF5V0A-E3-18 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 SMF5V0A-E3-18 reliable?
The price and inventory of SMF5V0A-E3-18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF5V0A-E3-18 is usually 5 days.
3.What payment methods are accepted for SMF5V0A-E3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF5V0A-E3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF5V0A-E3-18?
SMF5V0A-E3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF5V0A-E3-18 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 SMF5V0A-E3-18?
For technical support, including SMF5V0A-E3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF5V0A-E3-18 requirements.
6.How does Aetrix verify that SMF5V0A-E3-18 is sourced from the original manufacturer or authorized distributors?
All SMF5V0A-E3-18 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 SMF5V0A-E3-18 meets industry standards.
7.What is the process for return or replacement of SMF5V0A-E3-18?
All SMF5V0A-E3-18 units undergo pre-shipment inspection (PSI). If there is an issue with SMF5V0A-E3-18, 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 SMF5V0A-E3-18 part is unused and in its original packaging.
Return procedure for SMF5V0A-E3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF5V0A-E3-18 Tags
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