My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMF8V0A-M3-18
- Part No.:
- SMF8V0A-M3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF8V0A-M3-18.pdf
- Description:
- TVS DIODE 8VWM 13.6VC SMF
- Quantity:
- Payment:
- Shipping:
Inventory:9,504
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMF8V0A-M3-18 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 8.0 V stand-off voltage (VRWM), 14.7 A peak pulse current (IPPM) at 10/1000 μs, 13.6 V maximum clamping voltage (VC) at IPPM, ±30 kV IEC 61000-4-2 ESD immunity, and 706 pF typical junction capacitance at 0 V - deployed in USB 2.0, HDMI, and industrial sensor interfaces.
For engineers reviewing the SMF8V0A-M3-18 datasheet, SMF8V0A-M3-18 pinout, SMF8V0A-M3-18 application, or SMF8V0A-M3-18 equivalent, this device is selected for robust electrostatic discharge protection where low clamping voltage, sub-1 ns response time, and compatibility with automated SMT assembly are critical - especially in automotive infotainment, industrial HMI, and portable medical data ports.
Technical Context
This diode operates as a unidirectional TVS (Transient Voltage Suppressor) with avalanche breakdown behavior, optimized for fast clamping of ESD transients while minimizing signal distortion on data lines. Its low incremental surge resistance ensures stable clamping performance across repeated pulses, and its "Low Noise" technology enables sub-nanosecond response to 30 kV contact discharges.
The SMF8V0A-M3-18 is rated for operation from −65 °C to +175 °C, qualified to AEC-Q101, and built in a moisture-sensitive level 1 (MSL-1) DO-219AB package compatible with standard reflow profiles up to 260 °C peak temperature - supporting high-reliability automotive and industrial deployments without derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 8.0 V - defines maximum continuous reverse operating voltage before leakage exceeds 0.1 µA; sets safe margin above 5 V logic rails. |
| Clamping Voltage (VC) | 13.6 V max at 14.7 A (10/1000 µs) - limits transient voltage seen by downstream ICs during ESD events. |
| Junction Capacitance (CD) | 706 pF at 0 V, 1 MHz - impacts signal integrity on high-speed lines; suitable for ≤480 Mbps USB 2.0 but not USB 3.x. |
| ESD Immunity | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - exceeds Level 4 immunity requirements for industrial and automotive end-equipment. |
| Peak Pulse Power | 200 W at 10/1000 µs - supports single-event surge handling without thermal runaway under defined test conditions. |
| Operating Temperature | −65 °C to +175 °C - enables use in under-hood automotive modules and wide-temperature industrial controllers. |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including HBM >8 kV and high-temperature life testing. |
Pinout & Package
The SMF8V0A-M3-18 is housed in a unidirectional DO-219AB (SMF) package with cathode-bar marking. The device has two terminals: anode and cathode - mounted in series with the protected signal line, with cathode connected toward the IC side to clamp positive transients.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line-side terminal | Connected to the unprotected signal path (e.g., USB D+ trace); conducts during negative transients. |
| Cathode | Output/IC-side terminal | Connected to the protected IC pin; provides low-impedance path to ground for positive ESD events. |
Key Features
| Feature | Design Value |
|---|---|
| 200 W peak pulse power (10/1000 µs) | Enables reliable suppression of IEC 61000-4-5 surges without degradation in compact SMT footprint. |
| ±30 kV ESD immunity (IEC 61000-4-2) | Meets highest industrial and automotive ESD stress levels without external shielding or layout reinforcement. |
| Low clamping voltage (13.6 V @ 14.7 A) | Protects 5 V-tolerant interface ICs (e.g., USB PHYs, UART transceivers) from overvoltage damage during fast transients. |
| DO-219AB (SMF) package | 1.9 mm × 3.9 mm × 1.08 mm low-profile outline compatible with wave/reflow soldering and automated pick-and-place. |
| AEC-Q101 qualification | Validates long-term reliability for automotive applications including temperature cycling, humidity bias, and mechanical shock. |
Applications
| USB 2.0 Data Lines | HDMI Source Ports |
|---|---|
Use Scenario: Protecting D+ and D− lines in embedded USB host controllers against ESD from user-accessible connectors. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed in series with each data line, cathode toward the PHY IC. Use Value: Limits clamped voltage to ≤13.6 V during ±30 kV contact discharge, preserving signal integrity and preventing PHY latch-up. |
Use Scenario: Safeguarding HDMI TMDS clock and data channels in set-top box video outputs exposed to handling ESD. IC Role / Device Role / Timing Role: Low-capacitance ESD suppressor on each TMDS pair, positioned adjacent to connector. Use Value: 706 pF capacitance avoids significant rise-time degradation on 2.25 Gbps signals while clamping transients below 15 V. |
| Automotive Infotainment Displays | Industrial Sensor Interface Modules |
Use Scenario: ESD protection for touch controller I²C lines and display data buses in vehicle center consoles. IC Role / Device Role / Timing Role: Bidirectionally configured (via dual-diode arrangement) or used as unidirectional clamp on supply-referenced lines. Use Value: AEC-Q101 qualification ensures operation across −40 °C to +125 °C ambient, with no performance drift after thermal cycling. |
Use Scenario: Shielding RS-485 transceiver pins in factory-floor PLC I/O modules from maintenance-handling ESD. IC Role / Device Role / Timing Role: Series-connected transient suppressor on A/B differential lines, referenced to local ground plane. Use Value: 14.7 A IPPM rating handles multiple ESD strikes without parameter shift, maintaining <1 µA leakage at 8 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0A-E3/5A (Vishay) | DO-214AC (SMA) package; higher 16.0 V clamping voltage; 1000 W peak power (8/20 µs). | Better suited for higher-energy surges (e.g., lightning-induced), but larger footprint and higher capacitance (1100 pF). | Select when system-level surge testing requires IEC 61000-4-5 compliance beyond ESD-only scenarios. |
| TPD2E001DRYR (TI) | 0.65 mm × 0.65 mm DRY package; dual-channel; 12 pF capacitance; 12 V clamping at 1 A. | Optimized for ultra-high-speed interfaces (USB 3.1, MIPI), but lower surge rating (3 A IPPM) and non-AEC-Q101. | Select for space-constrained, multi-line protection where speed > surge robustness, and automotive qualification is not required. |
Compared with SMAJ8.0A-E3/5A and TPD2E001DRYR, the SMF8V0A-M3-18 delivers optimal balance of AEC-Q101 reliability, 13.6 V clamping, and 706 pF capacitance in a 3.9 mm × 1.9 mm footprint - making it preferred for cost-sensitive, high-volume automotive and industrial USB/HDMI protection where moderate data rate and high ESD robustness are jointly required.
Availability
SMF8V0A-M3-18 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI source port hardening, and automotive infotainment subsystems requiring stable component supply across extended production lifecycles.
Supply support for SMF8V0A-M3-18 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 clamping, and standardized SMT packaging - engineered specifically for ESD-critical interfaces in harsh-environment electronics.
FAQ
What is the maximum clamping voltage of the SMF8V0A-M3-18 under standard ESD test conditions?
The SMF8V0A-M3-18 has a maximum reverse clamping voltage (VC) of 13.6 V when subjected to its rated peak pulse current of 14.7 A using the 10/1000 µs waveform. This value is measured per IEC 61000-4-2 and ensures protected ICs remain within safe voltage margins during ±30 kV contact discharge events. The SMF8V0A-M3-18 maintains this clamping performance across its full operating temperature range.
Is the SMF8V0A-M3-18 suitable for protecting USB 3.0 or higher-speed interfaces?
No, the SMF8V0A-M3-18 is not recommended for USB 3.0 (5 Gbps) or faster interfaces due to its 706 pF junction capacitance at 0 V, which would significantly degrade signal integrity and eye diagram margins. It is validated for USB 2.0 (480 Mbps) and other sub-1 Gbps links like RS-232, I²C, and HDMI TMDS clock/data. For USB 3.x, lower-capacitance alternatives such as the TPD2E001DRYR (12 pF) are more appropriate. The SMF8V0A-M3-18 remains ideal where ESD robustness outweighs ultra-high-speed requirements.
Does the SMF8V0A-M3-18 require a heatsink in typical PCB layouts?
No, the SMF8V0A-M3-18 does not require a heatsink. Its thermal resistance (RthJA) is specified at 180 K/W when mounted on a standard epoxy-glass PCB with 3 mm × 3 mm copper pads (≥40 µm thick), and its 200 W peak pulse power rating applies to single, non-repetitive events. In normal operation - including repetitive ESD strikes at 0.01% duty cycle - self-heating remains negligible. Layout best practices include short traces and direct grounding of the cathode pad, but no additional thermal management is needed for the SMF8V0A-M3-18.
How is the polarity marked on the SMF8V0A-M3-18 package?
The SMF8V0A-M3-18 uses a cathode bar marking on the top surface of the DO-219AB (SMF) package - a visible dark band aligned with the cathode terminal. Per Vishay's orientation diagram, the cathode end is oriented toward the direction of tape unreeling in the 8 mm carrier tape. This marking is consistent across all SMF-series devices and must be aligned with the PCB silkscreen polarity indicator to ensure correct unidirectional clamping. The SMF8V0A-M3-18 functions only when installed with cathode toward the protected IC.
What is the moisture sensitivity level (MSL) rating for the SMF8V0A-M3-18?
The SMF8V0A-M3-18 is rated MSL level 1 per J-STD-020, meaning it is not moisture-sensitive and may be stored indefinitely at ambient conditions (≤30 °C / 60% RH) without baking prior to reflow. This eliminates dry-pack requirements and floor-life tracking, simplifying manufacturing logistics. The device supports standard lead-free reflow profiles with peak temperatures up to 260 °C, and its molded compound meets UL 94 V-0 flammability standards. This MSL-1 rating applies specifically to the SMF8V0A-M3-18 in its original sealed reel packaging.
SMF8V0A-M3-18 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):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 13.6V
- Current - Peak Pulse (10/1000µs):
- 14.7A
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 706pF @ 1MHz
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
SMF8V0A-M3-18 FAQ
1.How can I place an order for SMF8V0A-M3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF8V0A-M3-18 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 SMF8V0A-M3-18 reliable?
The price and inventory of SMF8V0A-M3-18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF8V0A-M3-18 is usually 5 days.
3.What payment methods are accepted for SMF8V0A-M3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF8V0A-M3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF8V0A-M3-18?
SMF8V0A-M3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF8V0A-M3-18 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 SMF8V0A-M3-18?
For technical support, including SMF8V0A-M3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF8V0A-M3-18 requirements.
6.How does Aetrix verify that SMF8V0A-M3-18 is sourced from the original manufacturer or authorized distributors?
All SMF8V0A-M3-18 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 SMF8V0A-M3-18 meets industry standards.
7.What is the process for return or replacement of SMF8V0A-M3-18?
All SMF8V0A-M3-18 units undergo pre-shipment inspection (PSI). If there is an issue with SMF8V0A-M3-18, 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 SMF8V0A-M3-18 part is unused and in its original packaging.
Return procedure for SMF8V0A-M3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF8V0A-M3-18 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
