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Vishay General Semiconductor - Diodes Division SMF16A-M3-18
- Part No.:
- SMF16A-M3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF16A-M3-18.pdf
- Description:
- TVS DIODE 16VWM 26VC SMF
- Quantity:
- Payment:
- Shipping:
Inventory:8,629
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Product details
Overview
SMF16A-M3-18 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 16 V stand-off voltage (VRWM), 26 V maximum clamping voltage at 7.7 A peak pulse current (10/1000 μs), 343 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 SMF16A-M3-18 datasheet, SMF16A-M3-18 pinout, SMF16A-M3-18 application, or SMF16A-M3-18 equivalent, this device is selected for USB 2.0, HDMI, and automotive infotainment interfaces where low clamping voltage, fast response, and robust ESD survivability are critical - with attention to its SOD-123W-compatible footprint and thermal resistance of 180 K/W.
Technical Context
This diode operates as a unidirectional TVS device with avalanche breakdown behavior, optimized for clamping transients before sensitive IC inputs. Its low incremental surge resistance ensures minimal voltage overshoot during fast ESD events, while its "Low Noise" technology enables sub-nanosecond response time under IEC 61000-4-2 stress.
The SMF16A-M3-18 is rated for 200 W peak pulse power (10/1000 μs), 1000 W (8/20 μs), and supports continuous operation from –65 °C to +175 °C. It meets AEC-Q101 stress tests including H3B-class human body model (>8 kV) and is qualified for reflow soldering up to 260 °C peak temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 16 V - Maximum continuous reverse voltage before leakage exceeds 0.1 μA; sets operating margin for protected signal lines. |
| Clamping Voltage (VC) | 26 V at IPPM = 7.7 A (10/1000 μs) - Peak voltage seen by downstream IC during worst-case surge; protects 3.3 V/5 V logic rails. |
| Capacitance (CD) | 343 pF at VR = 0 V, f = 1 MHz - Low enough for USB 2.0 (480 Mbps) and CAN FD signal integrity; avoids data distortion. |
| ESD Rating | ±30 kV contact / ±30 kV air (IEC 61000-4-2) - Full compliance with industrial and automotive ESD immunity requirements. |
| 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. |
| AEC-Q101 Qualified | Yes - Validated for automotive applications including infotainment, ADAS sensors, and body control modules. |
Pinout & Package
SMF16A-M3-18 uses the DO-219AB (SMF) package: a two-terminal, cathode-marked, surface-mount plastic case with gull-wing leads. Dimensions: 3.9 mm length × 1.9 mm width × 1.08 mm height. Compatible with SOD-123W, SOD-123F, and SOD-123FL footprints per Vishay's mechanical specification S8-V-3915.01-001.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input side of protected line | Connected to signal trace upstream of IC input; carries surge current into diode junction during overvoltage. |
| Cathode | Ground reference terminal | Connected to low-impedance system ground plane; completes clamping path and defines unidirectional conduction direction. |
Key Features
| Feature | Design Value |
|---|---|
| 200 W peak pulse power (10/1000 μs) | Enables reliable suppression of lightning-induced surges and EFT bursts without thermal runaway in compact layouts. |
| Low clamping voltage (26 V @ 7.7 A) | Provides tighter voltage margin than standard 15 V-rated TVS devices, reducing risk of latch-up or damage to 16 V-tolerant receivers. |
| 343 pF capacitance at 0 V | Minimizes signal rise-time degradation on 480 Mbps USB 2.0 and 100 Mbps CAN FD buses without requiring impedance tuning. |
| ±30 kV ESD immunity (IEC 61000-4-2) | Exceeds Level 4 immunity requirements for industrial and automotive end-equipment, eliminating need for secondary protection stages. |
| AEC-Q101 qualification | Validates reliability for automotive under-hood and cabin applications, including extended temperature cycling and humidity testing. |
Applications
| USB 2.0 Data Lines | HDMI DDC/CEC Channels |
|---|---|
Use Scenario: Protecting differential USB 2.0 D+/D− traces against ESD events during hot-plug insertion in portable docking stations. IC Role / Device Role: Unidirectional TVS clamp placed between connector and USB transceiver IC (e.g., TUSB2036). Use Value: 343 pF capacitance preserves signal integrity at 480 Mbps; 26 V clamping prevents transceiver latch-up during ±15 kV contact discharge. |
Use Scenario: Safeguarding HDMI DDC (I²C) and CEC control lines in smart TVs against user-handling ESD in living-room environments. IC Role / Device Role: Standoff-limited TVS protecting bidirectional I²C bus nodes connected to HDMI source/sink controllers. Use Value: 16 V VRWM matches 5 V I²C pull-up rail; ±30 kV air discharge rating ensures compliance with IEC 61000-4-2 Level 4. |
| Automotive Infotainment Displays | Industrial CAN FD Nodes |
Use Scenario: ESD protection for LVDS or FPD-Link III video interface cables connecting head-unit processors to TFT displays in vehicles. IC Role / Device Role: High-speed transient suppressor on each differential pair, mounted adjacent to display connector. Use Value: AEC-Q101 qualification guarantees operation across –40 °C to +105 °C ambient; 180 K/W RthJA enables stable thermal performance in sealed enclosures. |
Use Scenario: Protecting CAN FD physical layer transceivers (e.g., TCAN1042) from ESD and load-dump induced transients in factory automation gateways. IC Role / Device Role: Unidirectional TVS on CANH/CANL lines, referenced to chassis ground with low-inductance layout. Use Value: 26 V clamping voltage stays below CAN FD transceiver absolute max rating (40 V); 343 pF avoids bit-rate degradation at 5 Mbps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16A-E3/57T | Higher clamping voltage (33.2 V at 7.5 A), larger SMA package (4.5 mm × 2.7 mm), 500 pF capacitance. | Less suitable for high-speed interfaces; better for lower-frequency power-line or DC-bus protection. | Select SMAJ16A-E3/57T only when board space allows larger footprint and signal bandwidth < 100 Mbps. |
| TPD2E001DRSR | Bi-directional dual-channel array, 12 pF capacitance, 15 kV ESD rating, integrated 5 V I/O protection. | Designed for ultra-high-speed digital I/O (e.g., USB Type-C CC lines); not AEC-Q101 qualified. | Choose TPD2E001DRSR for consumer electronics with tight capacitance budgets but no automotive qualification requirement. |
Compared with SMAJ16A-E3/57T and TPD2E001DRSR, the SMF16A-M3-18 uniquely balances automotive qualification, 343 pF low capacitance, and 26 V clamping in a 3.9 mm × 1.9 mm footprint - making it optimal for space-constrained, high-reliability USB/CAN/HDMI protection where AEC-Q101 compliance is mandatory.
Availability
SMF16A-M3-18 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial USB 2.0 peripherals, and HDMI-enabled display interfaces requiring stable component supply and long-term lifecycle support.
Supply support for SMF16A-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 precise clamping - engineered specifically for USB, HDMI, CAN, and automotive sensor interfaces demanding robust ESD resilience.
FAQ
What is the clamping voltage of the SMF16A-M3-18 under a 10/1000 μs surge?
The SMF16A-M3-18 has a maximum clamping voltage (VC) of 26 V when subjected to a 7.7 A peak pulse current with a 10/1000 μs waveform. This value is measured per IEC 61000-4-5 test conditions and ensures downstream ICs remain within safe operating limits during transient events. The SMF16A-M3-18 maintains this clamping performance across its full operating temperature range of –65 °C to +175 °C.
Is the SMF16A-M3-18 qualified for automotive applications?
Yes, the SMF16A-M3-18 is AEC-Q101 qualified, having passed stress tests including human body model (H3B class >8 kV), temperature cycling, and high-temperature operating life. It is approved for use in automotive infotainment, ADAS camera links, and body electronics where reliability under harsh environmental conditions is required. The SMF16A-M3-18 meets all applicable AEC-Q101 test criteria per Vishay's qualification report.
What is the capacitance of the SMF16A-M3-18 at 0 V bias?
The SMF16A-M3-18 exhibits a typical capacitance (CD) of 343 pF at 0 V reverse bias and 1 MHz frequency, as specified in Vishay's Electrical Characteristics table. This value is confirmed across production lots and remains stable up to 10 V reverse bias. The SMF16A-M3-18's capacitance profile supports signal integrity in USB 2.0 and CAN FD applications without requiring additional impedance compensation.
Does the SMF16A-M3-18 have polarity marking, and how is it identified?
Yes, the SMF16A-M3-18 features a cathode band marking on the package body, consistent with DO-219AB mechanical drawings. The marking appears as a distinct dark bar near one end of the device, aligning with Pin 2 (cathode) in Vishay's orientation diagram. This marking is visible under standard optical inspection and compatible with automated optical recognition (AOI) systems used in SMT line verification. The SMF16A-M3-18's cathode orientation must be verified during placement to ensure correct unidirectional clamping function.
What is the thermal resistance (RthJA) of the SMF16A-M3-18 on a standard PCB?
The SMF16A-M3-18 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. This value is measured per JESD51-2 and reflects real-world thermal performance in typical 2-layer board configurations. The SMF16A-M3-18's low RthJA enables sustained operation at 175 °C junction temperature even under repetitive surge conditions, supporting high-reliability automotive deployments.
SMF16A-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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 7.7A
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 343pF @ 1MHz
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
SMF16A-M3-18 FAQ
1.How can I place an order for SMF16A-M3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF16A-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 SMF16A-M3-18 reliable?
The price and inventory of SMF16A-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 SMF16A-M3-18 is usually 5 days.
3.What payment methods are accepted for SMF16A-M3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF16A-M3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF16A-M3-18?
SMF16A-M3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF16A-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 SMF16A-M3-18?
For technical support, including SMF16A-M3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF16A-M3-18 requirements.
6.How does Aetrix verify that SMF16A-M3-18 is sourced from the original manufacturer or authorized distributors?
All SMF16A-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 SMF16A-M3-18 meets industry standards.
7.What is the process for return or replacement of SMF16A-M3-18?
All SMF16A-M3-18 units undergo pre-shipment inspection (PSI). If there is an issue with SMF16A-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 SMF16A-M3-18 part is unused and in its original packaging.
Return procedure for SMF16A-M3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF16A-M3-18 Tags
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