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Vishay SMF10A-HE3_A08
- Part No.:
- SMF10A-HE3_A08
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF10A-HE3_A08.pdf
- Description:
- ESD PROTECTION DIODE SMF DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,748
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Product details
Overview
SMF10A-HE3_A08 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 and power rails. It features a 10 V standoff voltage (VRWM), 17 V maximum clamping voltage at 11.8 A peak pulse current, 562 pF typical capacitance at 0 V, ±30 kV IEC 61000-4-2 ESD immunity, and AEC-Q101 qualification for automotive applications.
For engineers reviewing the SMF10A-HE3_A08 datasheet, SMF10A-HE3_A08 pinout, SMF10A-HE3_A08 application, or SMF10A-HE3_A08 equivalent, this device is selected for robust electrostatic discharge protection in USB 2.0 interfaces, automotive infotainment ports, and industrial sensor signal conditioning where low clamping voltage and fast response time are critical.
Technical Context
The SMF10A-HE3_A08 operates as a single-channel unidirectional TVS diode with avalanche breakdown behavior, optimized for clamping transients on positive-polarity signal or supply lines. Its junction temperature range spans –65 °C to +175 °C, and it delivers 200 W peak pulse power under 10/1000 μs waveform with ≤17 V clamping at rated IPPM.
It uses "Low Noise" silicon technology enabling sub-nanosecond response time and exhibits low incremental surge resistance for minimal voltage overshoot during ESD events. The device is qualified per AEC-Q101 for H3B human body model (>8 kV) and meets IEC 61000-4-2 contact/air discharge requirements up to ±30 kV.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VRWM) | 10 V - Maximum continuous reverse operating voltage before conduction begins; defines safe operating margin for 12 V nominal systems. |
| Clamping Voltage (VC) | 17 V max at 11.8 A - Peak voltage seen by protected circuit during 10/1000 μs transient; ensures downstream ICs remain within absolute maximum ratings. |
| Peak Pulse Current (IPPM) | 11.8 A - Maximum non-repetitive surge current the device can safely divert without degradation; validated per IEC 61000-4-5 10/1000 μs waveform. |
| Capacitance (CD) | 562 pF at 0 V, 1 MHz - Low enough for USB 2.0 (480 Mbps) signal integrity but not suitable for USB 3.x or HDMI; impacts rise time and insertion loss. |
| ESD Rating | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - Full compliance with Level 4 system-level ESD immunity testing for end-equipment certification. |
| AEC-Q101 Qualification | Qualified - Validated for automotive use including temperature cycling, humidity bias, and mechanical shock; supports under-hood and infotainment module deployment. |
| Package | DO-219AB (SOD-123W compatible) - 3.9 mm × 1.9 mm × 1.08 mm low-profile outline; enables high-density PCB layout and automated reflow assembly. |
Pinout & Package
SMF10A-HE3_A08 is housed in the DO-219AB (SMF) package: a two-terminal, surface-mount, unidirectional TVS diode with cathode marked by a bar on the top surface. The package conforms to SOD-123W footprint dimensions and is compatible with standard wave and reflow soldering profiles (peak temp ≤260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side connection | Connected to signal or power line requiring protection; conducts during positive transients when cathode is held at higher potential. |
| Cathode | Ground/reference side connection | Connected to local ground or return path; provides low-impedance shunt to divert ESD energy away from sensitive IC inputs. |
Key Features
| Feature | Design Value |
|---|---|
| 200 W peak pulse power (10/1000 μs) | Enables reliable suppression of high-energy transients in automotive and industrial environments without thermal runaway. |
| ±30 kV IEC 61000-4-2 ESD immunity | Meets highest system-level ESD test requirement for consumer, medical, and automotive electronics without external shielding. |
| Low clamping voltage (17 V @ 11.8 A) | Protects 12 V logic and analog circuits (e.g., CAN transceivers, LIN controllers) by limiting overvoltage stress below damage thresholds. |
| AEC-Q101 qualified | Validates reliability for automotive applications including temperature cycling, mechanical shock, and long-term operation at 175 °C junction temperature. |
| Low-profile DO-219AB package | Reduces board space and parasitic inductance vs. larger packages (e.g., SMA), improving high-frequency transient response. |
Applications
| Automotive Infotainment Ports | Industrial Sensor Signal Lines |
|---|---|
|
Use Scenario: Protecting USB 2.0, HDMI, or LVDS interfaces in head units and display modules from ESD events during assembly, service, or user interaction. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between connector and interface IC (e.g., USB PHY or serializer) to clamp fast-rising ESD pulses. Use Value: Prevents latch-up or gate oxide damage in high-speed interface ICs while maintaining signal integrity up to 480 Mbps due to 562 pF capacitance. |
Use Scenario: Safeguarding analog outputs (4–20 mA, 0–10 V) and digital I/O (RS-485, IO-Link) of pressure, temperature, or flow sensors in factory automation. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected across signal and ground to suppress induced surges from nearby motor switching or lightning-induced coupling. Use Value: Ensures uninterrupted sensor communication by limiting transient overvoltage to ≤17 V, well below typical input protection diode breakdown thresholds. |
| Consumer USB-C Power Delivery Paths | Medical Patient Monitoring Interfaces |
|
Use Scenario: Protecting VBUS and CC lines in USB-C receptacles against hot-plug ESD and cable-borne surges in portable chargers and docking stations. IC Role / Device Role / Timing Role: Primary ESD clamp on power and configuration channels, coordinated with internal PMIC protection to reduce system-level failure risk. Use Value: Maintains PD protocol handshake integrity by clamping transients within 1 ns, avoiding false disconnect detection or voltage droop-induced communication errors. |
Use Scenario: Shielding ECG, SpO₂, or NIBP signal inputs from ESD during clinical handling or electrode attachment in bedside monitors and portable devices. IC Role / Device Role / Timing Role: First-line transient suppressor on front-end analog signal paths, placed before instrumentation amplifiers and ADC drivers. Use Value: Preserves microvolt-level signal fidelity by limiting clamping overshoot and adding only 562 pF capacitive loading-within acceptable noise budget for diagnostic-grade accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A-E3/57T | Higher clamping voltage (20 V @ 12.5 A); SMA package (larger footprint, higher inductance) | Less suitable for high-speed USB 2.0 due to higher capacitance (~700 pF) and slower response; better for lower-frequency power rail protection | Select when board space allows larger package and clamping margin >20 V is acceptable for 12 V systems. |
| TPD2E001DRYR | Bi-directional dual-channel ESD array; 15 pF capacitance; 3.6 V VRWM; integrated 5 V VCC clamp | Designed for high-speed data lines (USB 2.0, HDMI); requires separate power rail; not AEC-Q101 qualified | Prefer for compact, multi-line protection where ultra-low capacitance and integrated VCC clamping are required-but not for automotive or standalone power-line use. |
Compared with SMAJ10A-E3/57T and TPD2E001DRYR, SMF10A-HE3_A08 offers optimal balance of low clamping (17 V), AEC-Q101 qualification, and DO-219AB footprint for single-line automotive and industrial ESD protection-without sacrificing surge robustness or requiring auxiliary power rails.
Availability
SMF10A-HE3_A08 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial sensor nodes, and medical patient monitoring equipment requiring stable component supply and long-term lifecycle support.
Supply support for SMF10A-HE3_A08 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, high-reliability ESD protection in space-constrained applications, with design emphasis on low clamping, AEC-Q101 qualification, and compatibility with modern SMT assembly processes.
FAQ
What is the standoff voltage rating of the SMF10A-HE3_A08?
The SMF10A-HE3_A08 has a maximum standoff voltage (VRWM) of 10 V, meaning it remains non-conductive up to this reverse voltage under normal operating conditions. This rating ensures compatibility with 12 V nominal systems while providing sufficient margin against ripple and tolerance drift. The device begins avalanche conduction above this threshold to clamp transients, and its 11.1 V minimum breakdown voltage (VBR) guarantees consistent triggering behavior across production lots.
Is SMF10A-HE3_A08 suitable for USB 2.0 data line protection?
Yes, SMF10A-HE3_A08 is commonly used for USB 2.0 D+ and D− line protection due to its 562 pF capacitance at 0 V and 1 MHz, which preserves signal integrity up to 480 Mbps without excessive rise-time degradation. Its unidirectional configuration suits VBUS-side or single-ended signal protection, and its ±30 kV IEC 61000-4-2 rating satisfies full system-level ESD compliance. However, it is not recommended for differential pair clamping without additional layout considerations.
Does SMF10A-HE3_A08 meet automotive qualification standards?
Yes, SMF10A-HE3_A08 is AEC-Q101 qualified, having passed stress tests including temperature cycling, high-temperature operating life, and mechanical shock. It supports junction temperatures from –65 °C to +175 °C and is rated for H3B human body model ESD (>8 kV). This makes SMF10A-HE3_A08 appropriate for under-dash, infotainment, and body control module applications where reliability under harsh environmental conditions is mandatory.
What is the maximum clamping voltage of SMF10A-HE3_A08 during an ESD event?
The SMF10A-HE3_A08 has a maximum clamping voltage (VC) of 17 V at its rated peak pulse current of 11.8 A (10/1000 μs waveform). This value represents the upper limit of voltage imposed on the protected circuit during worst-case transient conditions. Its low incremental surge resistance ensures minimal overshoot beyond this clamping level, making SMF10A-HE3_A08 effective for safeguarding 12 V logic and analog ICs with absolute maximum ratings up to 20 V.
Can SMF10A-HE3_A08 be used in reflow soldering processes?
Yes, SMF10A-HE3_A08 is fully compatible with standard lead-free reflow soldering processes. Its DO-219AB package is rated for peak temperatures up to 260 °C per J-STD-020 MSL Level 1, and the device is wave and reflow solderable without derating. The molded compound meets UL 94 V-0 flammability requirements, and the 1.08 mm height enables compatibility with tight clearance constraints in automated assembly lines.
SMF10A-HE3_A08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay
- Package/Case:
- DO-219AB
- Series:
- eSMP®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 11.8A
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 562pF @ 1MHz
- Operating Temperature:
- -65°C ~ 175°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
SMF10A-HE3_A08 FAQ
1.How can I place an order for SMF10A-HE3_A08 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF10A-HE3_A08 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 SMF10A-HE3_A08 reliable?
The price and inventory of SMF10A-HE3_A08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF10A-HE3_A08 is usually 5 days.
3.What payment methods are accepted for SMF10A-HE3_A08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF10A-HE3_A08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF10A-HE3_A08?
SMF10A-HE3_A08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF10A-HE3_A08 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 SMF10A-HE3_A08?
For technical support, including SMF10A-HE3_A08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF10A-HE3_A08 requirements.
6.How does Aetrix verify that SMF10A-HE3_A08 is sourced from the original manufacturer or authorized distributors?
All SMF10A-HE3_A08 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 SMF10A-HE3_A08 meets industry standards.
7.What is the process for return or replacement of SMF10A-HE3_A08?
All SMF10A-HE3_A08 units undergo pre-shipment inspection (PSI). If there is an issue with SMF10A-HE3_A08, 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 SMF10A-HE3_A08 part is unused and in its original packaging.
Return procedure for SMF10A-HE3_A08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF10A-HE3_A08 Tags
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