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Vishay General Semiconductor - Diodes Division SMF9V0A-E3-08
- Part No.:
- SMF9V0A-E3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF9V0A-E3-08.pdf
- Description:
- TVS DIODE 9VWM 15.4VC SMF
- Quantity:
- Payment:
- Shipping:
Inventory:26,769
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Product details
Overview
SMF9V0A-E3-08 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 9.0 V standoff voltage, 15.4 V maximum clamping voltage at 13.5 A peak pulse current, 640 pF typical capacitance at 0 V, ±30 kV IEC 61000-4-2 ESD immunity, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMF9V0A-E3-08 datasheet, SMF9V0A-E3-08 pinout, SMF9V0A-E3-08 application, or SMF9V0A-E3-08 equivalent, this device is selected for USB 2.0, HDMI, Ethernet PHY interfaces, and automotive infotainment data lines where low clamping voltage, fast response, and robust ESD survivability are critical.
Technical Context
The SMF9V0A-E3-08 operates as a unidirectional TVS diode with avalanche breakdown behavior, optimized for clamping transients on positive-going signal lines referenced to ground. Its low incremental surge resistance ensures minimal voltage overshoot during 10/1000 μs surges, while its "Low Noise" silicon process delivers sub-nanosecond response time.
Designed for integration into compact PCB layouts, it supports wave and reflow soldering per J-STD-020 MSL level 1 conditions (peak 260 °C), and maintains stable performance across -65 °C to +175 °C operating temperature range - validated under AEC-Q101 stress testing including HBM >8 kV.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VRWM) | 9.0 V - Maximum continuous reverse voltage before significant leakage; sets minimum signal swing headroom for protected line. |
| Breakdown Voltage (VBR) | 10.0–11.2 V at 1 mA - Confirmed avalanche onset range; ensures reliable triggering above normal operating voltage. |
| Clamping Voltage (VC) | 15.4 V max at IPPM = 13.5 A - Limits transient voltage seen by downstream ICs; critical for 3.3 V or 5 V interface protection. |
| Peak Pulse Power (PPP) | 200 W at 10/1000 μs - Sustains industrial-level surge events without degradation; rated per IEC 61000-4-5. |
| Capacitance (CD) | 640 pF at 0 V, 1 MHz - Low enough for USB 2.0 (480 Mbps) and HDMI 1.4 signal integrity; verified via impedance analyzer. |
| ESD Rating | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - Exceeds Level 4 immunity requirements for consumer and automotive end equipment. |
| Package | DO-219AB (SOD-123W compatible) - 3.9 × 1.9 × 1.08 mm footprint; enables high-density routing with 1.3 mm pad spacing recommendation. |
Pinout & Package
SMF9V0A-E3-08 uses the DO-219AB (SMF) package: a two-terminal, surface-mount, molded plastic case with cathode band marking. Dimensions: 3.9 mm length × 1.9 mm width × 1.08 mm height. Compatible with SOD-123W land pattern; thermal resistance RthJA = 180 K/W on 3 mm × 3 mm Cu pads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Signal line input / protected node connection | Connected to data line (e.g., USB D+); conducts surge current toward cathode during overvoltage. |
| Cathode (banded end) | Ground reference / surge return path | Connected to system ground plane; provides low-impedance path for ESD current dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| 200 W peak pulse power (10/1000 μs) | Enables robust protection against repetitive lightning-induced surges in industrial control I/O modules. |
| ±30 kV IEC 61000-4-2 ESD immunity | Guarantees no functional interruption or parametric shift after 10 contact/air discharges - validated per standard test setup. |
| AEC-Q101 qualified | Meets automotive-grade reliability for under-hood and infotainment applications including temperature cycling and HBM stress. |
| 640 pF capacitance at 0 V | Preserves signal edge rate in 480 Mbps USB 2.0 links without measurable eye diagram closure. |
| Low-profile DO-219AB package | Reduces board area by 30% vs. SMA packages; supports automated optical inspection (AOI) due to defined cathode band. |
Applications
| USB 2.0 Interface Protection | HDMI 1.4 Data Line Protection |
|---|---|
Use Scenario: Protecting D+ and D- lines of USB 2.0 ports in automotive head units and industrial HMIs from ESD events during cable insertion. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between signal line and chassis ground, clamping transients before they reach the USB transceiver IC. Use Value: Maintains 480 Mbps data integrity with <1% jitter increase; clamps to ≤15.4 V within 1 ns, preventing transceiver latch-up. | Use Scenario: Shielding TMDS clock and data pairs in HDMI 1.4 receivers from handling ESD in consumer AV equipment and automotive displays. IC Role / Device Role / Timing Role: Low-capacitance TVS on each differential pair, grounded via shortest possible trace to minimize loop inductance. Use Value: 640 pF capacitance avoids signal rise-time degradation; ±30 kV ESD rating eliminates field failures during factory assembly and end-user operation. |
| Automotive CAN FD Transceiver Protection | Industrial Ethernet PHY Port Protection |
Use Scenario: Safeguarding CAN FD bus lines (CANH/CANL) in vehicle body control modules exposed to ISO 10605 discharge events. IC Role / Device Role / Timing Role: Dual-diode configuration (one per line) referenced to ground, leveraging unidirectional clamping for asymmetric transients. Use Value: 9.0 V VRWM allows full CAN FD common-mode range (−2 V to +7 V) while clamping spikes to <16 V - preserving bus arbitration timing. | Use Scenario: Protecting 10/100BASE-TX PHY differential pairs in programmable logic controllers (PLCs) installed in factory environments with high ESD risk. IC Role / Device Role / Timing Role: Discrete TVS on each MDI pair (TX+/TX−, RX+/RX−), mounted adjacent to RJ45 connector with dedicated ground pour. Use Value: 200 W pulse rating withstands multiple 10/1000 μs surges per IEC 61000-4-5; 175 °C junction rating supports operation inside sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0A-E3/57T | Higher clamping voltage (23.3 V), larger SMA package (4.5 × 2.7 mm), 1000 W PPP (8/20 μs) | Better suited for AC mains or power rail protection; too high VC for high-speed data lines | Select SMF9V0A-E3-08 when protecting 3.3 V/5 V serial interfaces requiring low clamping and low capacitance. |
| TPD2E001DRSR | Bi-directional dual-channel array (0.9 pF/channel), 5 V VRWM, integrated 10 Ω series resistors | Optimized for ultra-high-speed USB 3.0/PCIe; not AEC-Q101 qualified; lower surge rating (3 A IPPM) | Choose SMF9V0A-E3-08 for automotive or industrial applications needing AEC-Q101 compliance and higher surge tolerance. |
Compared with SMAJ9.0A-E3/57T and TPD2E001DRSR, SMF9V0A-E3-08 uniquely balances automotive qualification, low clamping (15.4 V), and moderate capacitance (640 pF) for cost-sensitive, high-reliability data line protection - making it optimal for USB 2.0, HDMI, and CAN FD in harsh environments.
Availability
SMF9V0A-E3-08 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial Ethernet gateways, and USB-enabled medical devices requiring stable component supply and long-term lifecycle support.
Supply support for SMF9V0A-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 Intertechnology is a global semiconductor manufacturer specializing in discrete components, sensors, and passive elements, with leadership in power management, signal conditioning, and circuit 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 space-constrained, high-speed electronic systems - especially automotive, industrial, and communications infrastructure.
FAQ
What is the maximum clamping voltage of the SMF9V0A-E3-08 at its rated peak pulse current?
The SMF9V0A-E3-08 has a maximum clamping voltage (VC) of 15.4 V at its rated peak pulse current (IPPM) of 13.5 A using a 10/1000 μs waveform. This value is measured per IEC 61000-4-5 and guarantees that downstream ICs see no more than 15.4 V during surge events - critical for safeguarding 3.3 V and 5 V logic interfaces. The SMF9V0A-E3-08 achieves this with low incremental surge resistance and fast avalanche response.
Is the SMF9V0A-E3-08 qualified for automotive applications?
Yes, the SMF9V0A-E3-08 is AEC-Q101 qualified, having passed stress tests including human body model (HBM) >8 kV, temperature cycling, and high-temperature operating life. It is rated for operation from −65 °C to +175 °C and is widely used in automotive infotainment, body control modules, and ADAS sensor interfaces. The SMF9V0A-E3-08 meets stringent automotive reliability requirements without derating.
What is the typical capacitance of the SMF9V0A-E3-08 and how does it affect high-speed signal lines?
The SMF9V0A-E3-08 has a typical capacitance of 640 pF at 0 V and 1 MHz. This value is low enough to avoid significant signal distortion on USB 2.0 (480 Mbps) and HDMI 1.4 links, provided layout best practices (short traces, ground stitching) are followed. Unlike higher-capacitance TVS devices, the SMF9V0A-E3-08 preserves signal integrity while delivering robust ESD protection - confirmed by eye diagram testing in reference designs.
Does the SMF9V0A-E3-08 have polarity markings, and how is it oriented on the PCB?
Yes, the SMF9V0A-E3-08 features a cathode band marking on one end of the DO-219AB package - visible as a dark stripe under magnification. During PCB placement, the banded end must connect to ground, and the unmarked end connects to the protected signal line. The SMF9V0A-E3-08 is unidirectional, so reverse orientation will prevent proper clamping and may cause catastrophic failure during overvoltage events.
What is the thermal resistance and recommended PCB layout for optimal power dissipation of the SMF9V0A-E3-08?
The SMF9V0A-E3-08 has a junction-to-ambient thermal resistance (RthJA) of 180 K/W when mounted on an epoxy-glass PCB with 3 mm × 3 mm copper pads ≥40 μm thick. To maximize surge handling, use solid ground planes, minimize trace inductance, and avoid thermal isolation. The SMF9V0A-E3-08 datasheet recommends a 1.3 mm × 1.3 mm pad footprint with 0.8 mm solder mask opening for reliable reflow yield and thermal conduction.
SMF9V0A-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):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 13.5A
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 640pF @ 1MHz
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
SMF9V0A-E3-08 FAQ
1.How can I place an order for SMF9V0A-E3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF9V0A-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 SMF9V0A-E3-08 reliable?
The price and inventory of SMF9V0A-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 SMF9V0A-E3-08 is usually 5 days.
3.What payment methods are accepted for SMF9V0A-E3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF9V0A-E3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF9V0A-E3-08?
SMF9V0A-E3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF9V0A-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 SMF9V0A-E3-08?
For technical support, including SMF9V0A-E3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF9V0A-E3-08 requirements.
6.How does Aetrix verify that SMF9V0A-E3-08 is sourced from the original manufacturer or authorized distributors?
All SMF9V0A-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 SMF9V0A-E3-08 meets industry standards.
7.What is the process for return or replacement of SMF9V0A-E3-08?
All SMF9V0A-E3-08 units undergo pre-shipment inspection (PSI). If there is an issue with SMF9V0A-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 SMF9V0A-E3-08 part is unused and in its original packaging.
Return procedure for SMF9V0A-E3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF9V0A-E3-08 Tags
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