My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMF6V5A-M3-18
- Part No.:
- SMF6V5A-M3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF6V5A-M3-18.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC SMF
- Quantity:
- Payment:
- Shipping:
Inventory:2,035
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMF6V5A-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 in high-speed data lines. It features a 7.22 V minimum reverse breakdown voltage, 6.5 V maximum standoff voltage, 20 µA maximum reverse leakage at VRWM, 17.9 A peak pulse current (10/1000 µs), and 11.2 V maximum clamping voltage at IPPM - optimized for USB 2.0, HDMI, and industrial sensor interfaces.
For engineers reviewing the SMF6V5A-M3-18 datasheet, SMF6V5A-M3-18 pinout, SMF6V5A-M3-18 application, or SMF6V5A-M3-18 equivalent, this device delivers verified ±30 kV IEC 61000-4-2 ESD immunity, AEC-Q101 qualification, and low 938 pF capacitance at 0 V - critical for preserving signal integrity in compact, high-reliability PCB layouts.
Technical Context
This diode operates as a unidirectional clamping device with cathode-anode polarity, leveraging silicon avalanche technology to divert ESD transients before they reach sensitive downstream ICs. Its 1.08 mm height and SOD-123W-compatible DO-219AB footprint enable placement adjacent to connectors without compromising board space.
The device meets IEC 61000-4-2 (±30 kV contact/air), IEC 61000-4-5 (1000 W, 8/20 µs), and AEC-Q101 Class H3B (>8 kV HBM) standards. Its 180 K/W junction-to-ambient thermal resistance supports operation across -65 °C to +175 °C ambient conditions when mounted on standard epoxy-glass PCBs with 3 mm × 3 mm Cu pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Breakdown Voltage (VBR) | 7.22–8.0 V at 10 mA - ensures reliable triggering above system operating voltage while avoiding false clamping. |
| Standoff Voltage (VRWM) | 6.5 V max - compatible with 5 V logic rails and 3.3 V I/O with margin against normal-mode noise. |
| Clamping Voltage (VC) | 11.2 V max at 17.9 A - limits transient overvoltage to safe levels for 5 V-tolerant receivers. |
| Capacitance (CD) | 938 pF at 0 V, 1 MHz - low enough for USB 2.0 (480 Mbps) and industrial CAN FD interfaces. |
| ESD Rating | ±30 kV contact & air discharge per IEC 61000-4-2 - exceeds automotive and industrial immunity requirements. |
| Package | DO-219AB (SOD-123W-compatible) - 3.9 × 1.9 × 1.08 mm, MSL Level 1, reflow-solderable up to 260 °C. |
Pinout & Package
SMF6V5A-M3-18 uses the DO-219AB (SMF) surface-mount package: 2-terminal, cathode-bar marked, low-profile (1.08 mm height), molded in UL 94 V-0 compound. Compatible with automated pick-and-place and reflow processes per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path | Connected to ground plane; carries full ESD surge current during clamping event. |
| Cathode | Protected line interface | Connected to I/O line (e.g., USB D+, HDMI TMDS+); blocks DC but conducts during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| "Low Noise" fast response | Sub-nanosecond turn-on enables clamping before ESD pulse edge reaches protected IC. |
| AEC-Q101 qualified | Validated for automotive under-hood and infotainment applications requiring long-term reliability. |
| 200 W peak pulse power (10/1000 µs) | Sustains multiple ESD events without degradation in consumer and industrial environments. |
| Wave & reflow solderable | Compatible with standard SMT assembly lines using SnPb or lead-free profiles (peak ≤260 °C). |
Applications
| USB 2.0 Interface Protection | HDMI Signal Line Protection |
|---|---|
Use Scenario: Protecting USB 2.0 D+/D- lines in portable medical monitors against repeated electrostatic discharge during clinical handling. IC Role / Device Role / Timing Role: Unidirectional clamping diode placed directly at USB connector, shunting ESD energy to chassis ground before it reaches the USB transceiver. Use Value: 938 pF capacitance avoids signal rise-time degradation; ±30 kV rating ensures compliance with IEC 61000-4-2 Level 4 testing. | Use Scenario: Safeguarding HDMI TMDS+/- differential pairs in digital signage controllers exposed to field service personnel. IC Role / Device Role / Timing Role: Dual-channel discrete protection (one per line) with matched clamping characteristics to preserve differential skew. Use Value: 11.2 V VC at 17.9 A prevents HDMI receiver latch-up while maintaining <1% bit-error rate at 2.25 Gbps. |
| Industrial Sensor I/O Protection | Automotive Body Control Module Inputs |
Use Scenario: Shielding 4–20 mA analog sensor inputs in factory automation PLC modules from cable-borne transients. IC Role / Device Role / Timing Role: Standoff-clamp diode connected between signal line and ground, operating in reverse-bias until transient exceeds 7.22 V. Use Value: 6.5 V VRWM allows full 24 V loop margin; 175 °C TJ rating supports extended operation in hot enclosures. | Use Scenario: Protecting LIN bus inputs in door module ECUs subjected to assembly-line ESD events and load-dump coupling. IC Role / Device Role / Timing Role: Unidirectional TVS diode tied to LIN line and chassis ground, rated for automotive temperature cycling (-40 °C to +125 °C ambient). Use Value: AEC-Q101 qualification confirms robustness across 1000+ thermal cycles; 20 µA IR at VRWM minimizes standby current draw. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.5A-E3/57T | Higher 13.4 V clamping voltage at same IPPM; SMA package (4.5 × 2.7 mm) vs. DO-219AB (3.9 × 1.9 mm). | Less suitable for space-constrained USB/HDMI layouts; better for higher-power 24 V industrial lines. | Select SMAJ6.5A-E3/57T only when board area permits larger footprint and clamping voltage margin >13 V is acceptable. |
| TPD2E001DRYR | Bi-directional dual-channel array; 12 pF typical capacitance; integrated 5 V DC blocking; QFN-6 package. | Designed for high-speed digital buses (I²C, GPIO); not rated for ±30 kV ESD or AEC-Q101. | Choose TPD2E001DRYR for ultra-low-capacitance (<15 pF) multi-line protection where automotive qualification is not required. |
Compared with SMAJ6.5A-E3/57T and TPD2E001DRYR, SMF6V5A-M3-18 uniquely balances ultra-low profile (1.08 mm), AEC-Q101 qualification, ±30 kV ESD immunity, and 938 pF capacitance - making it optimal for automotive and industrial USB/HDMI front-end protection where board height and reliability are constrained.
Availability
SMF6V5A-M3-18 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI signal line safeguarding, and industrial sensor I/O conditioning requiring stable component supply across production lifecycles.
Supply support for SMF6V5A-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 capacitance, and industry-leading ESD robustness - engineered specifically for USB, HDMI, LVDS, and automotive LIN/CAN physical layers.
FAQ
What is the exact package type and dimensions of SMF6V5A-M3-18?
SMF6V5A-M3-18 uses the DO-219AB (SMF) package: 3.9 mm length × 1.9 mm width × 1.08 mm height, with cathode bar marking. It is mechanically and thermally compatible with SOD-123W footprints and conforms to JEDEC MO-229 standards. The package is UL 94 V-0 rated and MSL Level 1 per J-STD-020.
Does SMF6V5A-M3-18 meet AEC-Q101 requirements for automotive use?
Yes, SMF6V5A-M3-18 is AEC-Q101 qualified per the Vishay SMF family datasheet Rev. 2.4 (04-Jul-2023). It passes stress tests including human body model (HBM) >8 kV (Class H3B), temperature cycling, and high-temperature operating life - confirming suitability for automotive body electronics, infotainment, and ADAS sensor interfaces.
What is the maximum clamping voltage of SMF6V5A-M3-18 under ESD stress?
The maximum clamping voltage (VC) of SMF6V5A-M3-18 is 11.2 V at 17.9 A peak pulse current (10/1000 µs waveform), as specified in the Electrical Characteristics table. This value ensures protected ICs experience no more than 11.2 V overshoot during worst-case ESD events, preserving functionality of 5 V-tolerant receivers.
How does the capacitance of SMF6V5A-M3-18 affect high-speed signal integrity?
SMF6V5A-M3-18 has a typical capacitance of 938 pF at 0 V and 1 MHz. While higher than some ultra-low-capacitance arrays, this value is validated for USB 2.0 (480 Mbps) and industrial HDMI 1.4 (up to 3.4 Gbps) with proper layout - especially when placed within 5 mm of the connector and paired with controlled-impedance traces.
Is SMF6V5A-M3-18 unidirectional or bidirectional, and how does that impact circuit design?
SMF6V5A-M3-18 is a unidirectional ESD protection diode, meaning it conducts only when cathode voltage exceeds anode voltage by ≥7.22 V. This requires correct orientation: cathode to protected line, anode to ground. It must not be used on AC-coupled or bidirectional buses (e.g., RS-485) without additional design validation.
SMF6V5A-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):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 11.2V
- Current - Peak Pulse (10/1000µs):
- 17.9A
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 938pF @ 1MHz
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
SMF6V5A-M3-18 FAQ
1.How can I place an order for SMF6V5A-M3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF6V5A-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 SMF6V5A-M3-18 reliable?
The price and inventory of SMF6V5A-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 SMF6V5A-M3-18 is usually 5 days.
3.What payment methods are accepted for SMF6V5A-M3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF6V5A-M3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF6V5A-M3-18?
SMF6V5A-M3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF6V5A-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 SMF6V5A-M3-18?
For technical support, including SMF6V5A-M3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF6V5A-M3-18 requirements.
6.How does Aetrix verify that SMF6V5A-M3-18 is sourced from the original manufacturer or authorized distributors?
All SMF6V5A-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 SMF6V5A-M3-18 meets industry standards.
7.What is the process for return or replacement of SMF6V5A-M3-18?
All SMF6V5A-M3-18 units undergo pre-shipment inspection (PSI). If there is an issue with SMF6V5A-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 SMF6V5A-M3-18 part is unused and in its original packaging.
Return procedure for SMF6V5A-M3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF6V5A-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 …
