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Vishay General Semiconductor - Diodes Division SMF15A-HE3-08
- Part No.:
- SMF15A-HE3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF15A-HE3-08.pdf
- Description:
- TVS DIODE 15VWM 24.4VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:28,066
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Product details
Overview
SMF15A-HE3-08 from Vishay Semiconductors is a unidirectional surface-mount ESD protection diode in the SMF (DO-219AB) package, designed for transient voltage suppression in high-speed data lines. It features a 15 V standoff voltage (VRWM), 24.4 V maximum clamping voltage at 8.2 A peak pulse current, and ±30 kV IEC 61000-4-2 ESD immunity-ideal for USB 2.0, HDMI, and industrial sensor interface protection.
For engineers reviewing the SMF15A-HE3-08 datasheet, SMF15A-HE3-08 pinout, SMF15A-HE3-08 application, or SMF15A-HE3-08 equivalent, this device delivers verified low-capacitance (367 pF at 0 V), AEC-Q101 qualified reliability, and SOD-123W-compatible footprint for automotive infotainment and industrial control I/O protection.
Technical Context
The SMF15A-HE3-08 operates as a single-channel unidirectional TVS diode with avalanche breakdown behavior, optimized for fast response (<1 ns) to ESD transients per IEC 61000-4-2. Its junction temperature range spans –65 °C to +175 °C, supporting operation in under-hood automotive environments and harsh industrial settings.
It uses silicon planar technology with low incremental surge resistance to maintain tight clamping performance across its 8.2 A IPPM rating (10/1000 μs waveform), while its 367 pF capacitance at 0 V ensures minimal signal distortion on 480 Mbps USB 2.0 lines without requiring impedance tuning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VRWM) | 15 V - defines maximum continuous operating voltage before conduction begins; sets safe margin below 16.7–18.5 V breakdown range. |
| Clamping Voltage (VC) | 24.4 V max at 8.2 A - limits transient voltage seen by downstream ICs during 10/1000 μs surges, protecting 24 V logic interfaces. |
| Peak Pulse Power (PPP) | 200 W (10/1000 μs) - sustains short-duration ESD events without degradation; sufficient for IEC 61000-4-2 Level 4 compliance. |
| Capacitance (CD) | 367 pF at 0 V, 1 MHz - enables use on moderate-speed digital lines (e.g., CAN FD, RS-485, USB 2.0) without excessive signal rise-time degradation. |
| ESD Immunity | ±30 kV contact / ±30 kV air (IEC 61000-4-2) - exceeds automotive and industrial ESD requirements without external shielding. |
| Package | DO-219AB (SOD-123W-compatible) - 3.9 mm × 1.9 mm × 1.08 mm low-profile outline enabling dense PCB layouts and automated reflow assembly. |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including H3B-class HBM (>8 kV), qualifying for powertrain and body electronics applications. |
Pinout & Package
SMF15A-HE3-08 is housed in the DO-219AB (SMF) package: a surface-mount, low-profile, cathode-marked case with two terminals. The package measures 3.9 mm × 1.9 mm × 1.08 mm and is compatible with SOD-123W, SOD-123F, and SOD-123FL footprints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input side of protected line | Connected to signal or power line requiring ESD protection; referenced to system ground via cathode path. |
| Cathode | Ground reference terminal | Must be connected to low-impedance system ground plane to enable effective clamping; marked by bar on top surface. |
Key Features
| Feature | Design Value |
|---|---|
| "Low Noise" fast-response technology | Sub-nanosecond turn-on enables clamping before ESD energy couples into sensitive IC inputs. |
| Wave and reflow solderable | Qualified for standard Pb-free reflow profiles up to 260 °C peak, supporting high-volume automated assembly. |
| Low incremental surge resistance | Minimizes voltage overshoot during high-di/dt transients, improving clamping consistency across pulse amplitudes. |
| MSL Level 1 moisture sensitivity | Unlimited floor life at ≤30 °C/60% RH-no baking required prior to assembly, reducing manufacturing overhead. |
| UL 94 V-0 molding compound | Self-extinguishing encapsulation meets flammability safety standards for enclosed industrial and automotive enclosures. |
Applications
| Automotive Infotainment I/O Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting HDMI, USB 2.0, and audio jack lines in head units and display modules from ESD events during user interaction or cable hot-plug. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between signal line and chassis ground to clamp transients before reaching SoC or level-shifter ICs. Use Value: 367 pF capacitance avoids signal integrity loss on 480 Mbps USB 2.0 links; ±30 kV ESD rating eliminates need for secondary shielding in cost-sensitive designs. | Use Scenario: Safeguarding analog and digital I/O pins of PLC input modules and field transmitters exposed to ESD in factory-floor environments. IC Role / Device Role / Timing Role: Standoff-clamp TVS element on 24 V supply rails and RS-485 differential pairs to prevent latch-up or gate oxide damage in microcontrollers and transceivers. Use Value: 15 V VRWM aligns with 24 V industrial bus margins; 175 °C max junction temperature supports operation near motor drives and power supplies. |
| Automotive Body Control Module (BCM) | Medical Diagnostic Equipment Port Protection |
Use Scenario: Shielding LIN bus lines, door lock actuators, and LED driver control signals from ESD generated during vehicle service or environmental exposure. IC Role / Device Role / Timing Role: Single-line unidirectional suppressor mounted directly at connector entry points to minimize trace inductance and improve clamping speed. Use Value: AEC-Q101 qualification ensures long-term reliability in vibration-prone BCM assemblies; DO-219AB package withstands thermal cycling over 1000 cycles. | Use Scenario: Securing USB and serial communication ports on ultrasound machines and patient monitors against clinical ESD events (e.g., staff static discharge). IC Role / Device Role / Timing Role: Primary ESD front-end protector on isolated data paths, working in concert with isolation amplifiers and medical-grade filters. Use Value: 24.4 V clamping voltage provides safe margin below 3.3 V/5 V logic thresholds; RoHS-compliant terminations meet IEC 60601-1 biocompatibility requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A-E3/57T | Higher clamping voltage (24.4 V vs. 24.4 V identical), but larger SMA package (4.5 mm × 2.7 mm) and higher capacitance (400 pF). | Less suitable for space-constrained USB 2.0 routing; better for lower-speed 24 V power rail protection. | Select SMAJ15A-E3/57T only when board area permits larger footprint and higher capacitance is acceptable. |
| TPD2E001DRYR | Bi-directional dual-channel array (2 × 15 V), 12 pF typical capacitance, but rated only to ±8 kV HBM-not IEC 61000-4-2 compliant. | Targeted at high-speed data lines (e.g., USB 3.0), not robust ESD environments like automotive or factory floors. | Choose TPD2E001DRYR for ultra-low-capacitance needs where full IEC 61000-4-2 compliance is not required. |
Compared with SMAJ15A-E3/57T and TPD2E001DRYR, SMF15A-HE3-08 uniquely balances IEC 61000-4-2 ±30 kV compliance, compact DO-219AB packaging, and AEC-Q101 qualification-making it the preferred choice for automotive and industrial ESD-critical signal lines where reliability and footprint efficiency are jointly prioritized.
Availability
SMF15A-HE3-08 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial PLC I/O modules, and medical diagnostic equipment requiring stable component supply and long-term lifecycle support.
Supply support for SMF15A-HE3-08 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 power management, signal conditioning, and protection technologies.
The SMF series belongs to Vishay's eSMP® family of surface-mount TVS diodes, engineered specifically for high-reliability ESD and surge protection in automotive, industrial, and computing applications where space, speed, and ruggedness are critical.
FAQ
What is the standoff voltage rating of the SMF15A-HE3-08?
The SMF15A-HE3-08 has a maximum standoff voltage (VRWM) of 15 V, meaning it remains non-conductive up to this DC or continuous reverse voltage. This value is confirmed in the Electrical Characteristics table of Vishay's document 85881, ensuring compatibility with 12 V–15 V signal and supply rails while maintaining margin below its 16.7–18.5 V breakdown range.
Is SMF15A-HE3-08 qualified to AEC-Q101?
Yes, SMF15A-HE3-08 is AEC-Q101 qualified, as explicitly stated in the "FEATURES" section of Vishay's SMF5V0A to SMF58A datasheet (Rev. 2.4). This qualification covers human body model (HBM) Class H3B (>8 kV), making SMF15A-HE3-08 suitable for automotive body electronics, infotainment, and powertrain control modules.
What is the clamping voltage of SMF15A-HE3-08 at its rated peak pulse current?
The SMF15A-HE3-08 exhibits a maximum clamping voltage (VC) of 24.4 V at its rated peak pulse current (IPPM) of 8.2 A under a 10/1000 μs waveform. This value is specified in the "ELECTRICAL CHARACTERISTICS" table and defines the upper voltage limit imposed on protected circuits during standardized surge events.
Does SMF15A-HE3-08 meet IEC 61000-4-2 ESD immunity requirements?
Yes, SMF15A-HE3-08 meets IEC 61000-4-2 with ±30 kV contact discharge and ±30 kV air discharge ratings, as documented in the "FEATURES" and "ABSOLUTE MAXIMUM RATINGS" sections of Vishay's datasheet 85881. This performance exceeds Level 4 of the standard and applies across 10-pulse testing conditions.
What package type does SMF15A-HE3-08 use, and is it compatible with automated assembly?
SMF15A-HE3-08 uses the DO-219AB (SMF) package-a low-profile, surface-mount outline measuring 3.9 mm × 1.9 mm × 1.08 mm. It is fully wave and reflow solderable, qualified for Pb-free reflow up to 260 °C, and carries MSL Level 1 rating, enabling direct placement into high-volume automated SMT lines without baking or special handling.
SMF15A-HE3-08 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):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 24.4V
- Current - Peak Pulse (10/1000µs):
- 8.2A
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 367pF @ 1MHz
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
SMF15A-HE3-08 FAQ
1.How can I place an order for SMF15A-HE3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF15A-HE3-08 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 SMF15A-HE3-08 reliable?
The price and inventory of SMF15A-HE3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF15A-HE3-08 is usually 5 days.
3.What payment methods are accepted for SMF15A-HE3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF15A-HE3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF15A-HE3-08?
SMF15A-HE3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF15A-HE3-08 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 SMF15A-HE3-08?
For technical support, including SMF15A-HE3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF15A-HE3-08 requirements.
6.How does Aetrix verify that SMF15A-HE3-08 is sourced from the original manufacturer or authorized distributors?
All SMF15A-HE3-08 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 SMF15A-HE3-08 meets industry standards.
7.What is the process for return or replacement of SMF15A-HE3-08?
All SMF15A-HE3-08 units undergo pre-shipment inspection (PSI). If there is an issue with SMF15A-HE3-08, 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 SMF15A-HE3-08 part is unused and in its original packaging.
Return procedure for SMF15A-HE3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF15A-HE3-08 Tags
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