My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMF14A-E3-08
- Part No.:
- SMF14A-E3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF14A-E3-08.pdf
- Description:
- TVS DIODE 14VWM 23.2VC SMF
- Quantity:
- Payment:
- Shipping:
Inventory:28,197
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMF14A-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 14 V stand-off voltage (VRWM), 23.2 V maximum clamping voltage at 8.6 A peak pulse current, 392 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 SMF14A-E3-08 datasheet, SMF14A-E3-08 pinout, SMF14A-E3-08 application, or SMF14A-E3-08 equivalent, this device is selected for USB 2.0, HDMI, and automotive infotainment interfaces where low clamping voltage, fast response time, and robust ESD survivability are critical to signal integrity and system reliability.
Technical Context
The SMF14A-E3-08 operates as a unidirectional TVS diode with avalanche breakdown behavior, optimized for clamping transients on single-ended I/O lines referenced to ground. Its low incremental surge resistance enables tight voltage regulation during 10/1000 μs surges up to 200 W peak power, while its "Low Noise" silicon process ensures sub-nanosecond response to ESD events.
It is rated for continuous operation from −65 °C to +175 °C, with thermal resistance RthJA = 180 K/W on standard 3 mm × 3 mm Cu pads, and supports wave and reflow soldering per J-STD-020 MSL level 1 (peak 260 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 14 V - Maximum continuous reverse operating voltage before leakage exceeds 0.1 μA; defines safe operating margin below clamping threshold. |
| Clamping Voltage (VC) | 23.2 V max at IPPM = 8.6 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines downstream IC stress level. |
| Peak Pulse Power (PPP) | 200 W @ 10/1000 μs - Sustained transient energy handling capability without degradation; validated per IEC 61000-4-5. |
| Capacitance (CD) | 392 pF @ 0 V, 1 MHz - Signal-line loading effect on high-speed interfaces; 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 - Guarantees survival of worst-case human-body ESD events without parametric shift. |
| AEC-Q101 Qualified | Yes - Validated for automotive underhood and cabin applications per stress test requirements including HBM >8 kV. |
| Package | DO-219AB (SOD-123W-compatible) - 3.9 mm × 1.9 mm × 1.08 mm low-profile outline enabling dense PCB layouts and automated assembly. |
Pinout & Package
SMF14A-E3-08 uses the DO-219AB (SMF) package: a two-terminal, surface-mount, unidirectional TVS diode with cathode marked by a bar on the top surface. The device has no internal complexity-only anode and cathode terminals forming a single PN junction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Input/Line side connection | Connected to signal line requiring protection; current flows into anode during positive transients. |
| Cathode (bar-marked end) | Ground reference terminal | Connected to system ground or low-impedance return path; defines clamping reference and polarity. |
Key Features
| Feature | Design Value |
|---|---|
| 200 W peak pulse power (10/1000 μs) | Enables robust protection against lightning-induced surges and industrial switching transients without derating at board level. |
| ±30 kV ESD immunity (IEC 61000-4-2) | Eliminates need for secondary ESD mitigation on exposed ports like USB connectors or display interfaces. |
| 392 pF capacitance at 0 V | Preserves signal rise/fall times in USB 2.0 and LVDS links while maintaining adequate surge margin. |
| AEC-Q101 qualification | Validates reliability for automotive infotainment, ADAS camera links, and body control modules subject to temperature cycling and vibration. |
| DO-219AB low-profile package | Reduces board space vs. SMA/SMB and supports high-density routing on compact PCBs such as head unit mainboards. |
Applications
| USB 2.0 Data Lines | HDMI DDC/CEC Channels |
|---|---|
Use Scenario: Protecting differential USB 2.0 D+ and D− lines from ESD events during cable insertion or handling in portable and automotive docking stations. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between each data line and chassis ground, limiting transient voltage to <23.2 V during ±30 kV contact discharge. Use Value: Prevents latch-up or gate oxide damage in USB transceivers (e.g., TUSB2036, USB3300) while adding only 392 pF per line-within USB 2.0 eye diagram budget. |
Use Scenario: Safeguarding HDMI DDC (I²C) and CEC control lines in flat-panel TVs and set-top boxes against user-touch ESD in living-room environments. IC Role / Device Role / Timing Role: Standoff-rated TVS on 3.3 V or 5 V I²C bus lines, with 14 V VRWM ensuring no interference during normal 0–3.3 V signaling. Use Value: Maintains I²C timing integrity (400 kHz max) due to low capacitance and avoids false ACK/NACK errors caused by transient-induced bus glitches. |
| Automotive Infotainment Displays | Industrial Serial Communication Ports |
Use Scenario: ESD hardening of LVDS or FPD-Link II video interface lines connecting head units to TFT displays in vehicles. IC Role / Device Role / Timing Role: Per-lane unidirectional clamp referenced to vehicle chassis ground, leveraging AEC-Q101 qualification for under-dash mounting. Use Value: Ensures compliance with ISO 10605 (330 Ω/150 pF) and prevents pixel corruption or display reset during service technician handling. |
Use Scenario: Transient protection on RS-485/RS-422 driver/receiver I/O pins in factory automation controllers exposed to motor drive noise and maintenance ESD. IC Role / Device Role / Timing Role: Bidirectional-capable protection via dual unidirectional placement (anode-to-line/cathode-to-ground and cathode-to-line/anode-to-ground). Use Value: Delivers 23.2 V clamping at 8.6 A while surviving repeated 200 W surges-critical for long-cable industrial networks with high ground potential differences. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ14A-E3/57T | Same VRWM (14 V) and VC (23.2 V), but SMA package (DO-214AC); 400 pF capacitance; higher RthJA (200 K/W). | Larger footprint (4.5 mm × 2.7 mm); less suitable for ultra-dense layouts; same automotive qualification. | Choose SMAJ14A-E3/57T when legacy PCB land patterns exist or higher thermal mass is needed for repetitive surge duty. |
| TPD2E001DRYR | 2-channel, 15 pF per line, 12 V VRWM; integrated ESD array; no AEC-Q101 rating; 5.5 V clamping at 1 A. | Designed for high-speed digital buses (USB 2.0, Ethernet PHY); not rated for 200 W surges or automotive temperature range. | Choose TPD2E001DRYR only for consumer-grade, low-energy, multi-line protection where ultra-low capacitance outweighs surge robustness. |
Compared with SMAJ14A-E3/57T and TPD2E001DRYR, the SMF14A-E3-08 uniquely balances automotive-grade reliability, 200 W surge capacity, and compact DO-219AB packaging-making it optimal for space-constrained, high-reliability ESD protection where both IEC 61000-4-2 and IEC 61000-4-5 compliance are required.
Availability
SMF14A-E3-08 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial serial communication ports, and consumer USB 2.0 peripherals requiring stable component supply across extended product lifecycles.
Supply support for SMF14A-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 Semiconductors is a global leader in discrete semiconductors, specializing in power management, sensing, and protection components with emphasis on reliability, precision, and automotive-grade validation.
The SMF series targets high-speed interface protection in automotive and industrial environments, delivering low-clamp, low-capacitance TVS performance in miniature surface-mount packages for next-generation connectivity systems.
FAQ
What is the maximum clamping voltage of the SMF14A-E3-08 under a 10/1000 μs surge?
The SMF14A-E3-08 has a maximum clamping voltage (VC) of 23.2 V at 8.6 A peak pulse current (IPPM) under a 10/1000 μs waveform. This value is guaranteed across temperature and represents the highest voltage the protected circuit will experience during standardized surge testing. The SMF14A-E3-08 maintains this clamping performance consistently due to its low incremental surge resistance and optimized silicon junction design.
Is the SMF14A-E3-08 suitable for USB 2.0 data line protection?
Yes, the SMF14A-E3-08 is suitable for USB 2.0 data line protection. With 392 pF typical capacitance at 0 V and 14 V stand-off voltage, it preserves signal integrity within USB 2.0's 480 Mbps bandwidth while providing ±30 kV IEC 61000-4-2 ESD protection. The SMF14A-E3-08 must be placed per-line (D+ and D−) with proper grounding to avoid skew; its DO-219AB footprint supports fine-pitch routing near USB connectors.
Does the SMF14A-E3-08 meet automotive qualification standards?
Yes, the SMF14A-E3-08 is AEC-Q101 qualified, confirming its suitability for automotive applications including infotainment, ADAS camera links, and body electronics. It passes stress tests for temperature cycling, mechanical shock, and human-body model ESD (>8 kV). The SMF14A-E3-08 operates across −65 °C to +175 °C and is rated for under-hood and cabin environments per Vishay's qualification report.
What is the package type and dimensions of the SMF14A-E3-08?
The SMF14A-E3-08 uses the DO-219AB (SMF) package: 3.9 mm length × 1.9 mm width × 1.08 mm height, with cathode indicated by a bar marking. Its footprint matches SOD-123W outlines and supports reflow soldering per J-STD-020 MSL level 1 (260 °C peak). The SMF14A-E3-08's low profile enables placement beneath connectors and in tight spacing constraints typical of modern automotive PCBs.
How does the SMF14A-E3-08 compare to bidirectional TVS diodes in ESD protection?
The SMF14A-E3-08 is unidirectional and optimized for DC-biased lines like USB D+ (3.3 V referenced to ground), offering lower leakage and tighter clamping than bidirectional equivalents. For AC-coupled or floating lines, two SMF14A-E3-08 devices can be used back-to-back. Unlike bidirectional TVS diodes, the SMF14A-E3-08 provides asymmetric protection with precise 14 V stand-off-critical for preserving logic thresholds in powered interfaces.
SMF14A-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):
- 14V
- Voltage - Breakdown (Min):
- 15.6V
- Voltage - Clamping (Max) @ Ipp:
- 23.2V
- Current - Peak Pulse (10/1000µs):
- 8.6A
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 392pF @ 1MHz
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
SMF14A-E3-08 FAQ
1.How can I place an order for SMF14A-E3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF14A-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 SMF14A-E3-08 reliable?
The price and inventory of SMF14A-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 SMF14A-E3-08 is usually 5 days.
3.What payment methods are accepted for SMF14A-E3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF14A-E3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF14A-E3-08?
SMF14A-E3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF14A-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 SMF14A-E3-08?
For technical support, including SMF14A-E3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF14A-E3-08 requirements.
6.How does Aetrix verify that SMF14A-E3-08 is sourced from the original manufacturer or authorized distributors?
All SMF14A-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 SMF14A-E3-08 meets industry standards.
7.What is the process for return or replacement of SMF14A-E3-08?
All SMF14A-E3-08 units undergo pre-shipment inspection (PSI). If there is an issue with SMF14A-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 SMF14A-E3-08 part is unused and in its original packaging.
Return procedure for SMF14A-E3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF14A-E3-08 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 …
