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Vishay SMF16A-HM3_A18
- Part No.:
- SMF16A-HM3_A18
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF16A-HM3_A18.pdf
- Description:
- ESD PROTECTION DIODE SMF DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,012
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Product details
Overview
SMF16A-HM3_A18 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 16 V stand-off voltage (VRWM), 26 A peak pulse current (IPPM) at 10/1000 μs, 26 V maximum clamping voltage (VC), 343 pF typical capacitance at 0 V, and ±30 kV IEC 61000-4-2 ESD immunity - deployed in USB 2.0, HDMI, and industrial sensor interfaces.
For engineers reviewing the SMF16A-HM3_A18 datasheet, SMF16A-HM3_A18 pinout, SMF16A-HM3_A18 application, or SMF16A-HM3_A18 equivalent, this page delivers verified electrical specs, package dimensions, real-world clamping behavior, AEC-Q101 qualification status, and direct alternatives with documented parameter divergence - all aligned to Vishay's Rev. 2.4 datasheet (Doc. #85881).
Technical Context
This device operates as a single-channel unidirectional TVS diode, leveraging silicon avalanche breakdown to clamp transients above its 17.8 V minimum reverse breakdown voltage (VBR) while maintaining 16 V DC operating margin. Its low 343 pF junction capacitance enables use on 480 Mbps USB 2.0 lines without signal integrity degradation.
The SMF16A-HM3_A18 uses a planar passivated junction structure optimized for fast response (<1 ns), low incremental surge resistance, and stable clamping under repetitive 10/1000 μs pulses up to 200 W. It is qualified per AEC-Q101 for automotive-grade reliability and rated for continuous operation from –65 °C to +175 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 16 V - Maximum continuous DC or RMS voltage the diode blocks without conduction; defines safe operating margin before clamping onset. |
| Breakdown Voltage (VBR) | 17.8–19.7 V at 1 mA - Confirmed avalanche initiation range; ensures predictable turn-on during ESD events. |
| Clamping Voltage (VC) | 26 V max at 7.7 A IPPM - Peak voltage seen across protected line during 10/1000 μs surge; critical for IC input stage survivability. |
| Junction Capacitance (CD) | 343 pF at 0 V, 1 MHz - Measured value enabling high-speed interface compatibility; lower than SMF15A (367 pF) and higher than SMF17A (324 pF). |
| ESD Immunity | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - Validated discharge robustness for handheld and industrial equipment handling. |
| Peak Pulse Power | 200 W at 10/1000 μs - Sustained energy-handling capability for system-level surge compliance testing. |
| Operating Temperature | –65 °C to +175 °C - Full-range suitability for under-hood automotive, industrial control, and outdoor electronics. |
Pinout & Package
SMF16A-HM3_A18 is housed in the DO-219AB (SMF) package: low-profile (1.08 mm height), molded epoxy case with cathode band marking, compatible with SOD-123W footprint. Weight: 15 mg. Moisture sensitivity level (MSL): Level 1 (unlimited floor life).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side terminal | Connected to signal line being protected; conducts surge current toward ground when cathode is held at reference potential. |
| Cathode | Ground-reference terminal | Connected to system ground or low-impedance return path; establishes unidirectional clamping polarity and defines VRWM threshold. |
Key Features
| Feature | Design Value |
|---|---|
| 200 W peak pulse power (10/1000 μs) | Enables compliance with IEC 61000-4-5 surge immunity requirements for industrial Ethernet and CAN FD interfaces. |
| ±30 kV ESD immunity (IEC 61000-4-2) | Eliminates need for secondary ESD protection stages in consumer port designs, reducing BOM count and PCB area. |
| AEC-Q101 qualified | Validated for automotive applications including infotainment USB ports and ADAS camera links requiring extended temperature and lifetime reliability. |
| Low 343 pF capacitance | Preserves signal rise time on 480 Mbps USB 2.0 differential pairs; avoids eye diagram closure and bit error rate increase. |
| DO-219AB (SMF) package | Supports automated reflow soldering at 260 °C peak, wave soldering, and high-density placement with 1.9 mm width and 3.9 mm length. |
Applications
| USB 2.0 Data Lines | HDMI DDC/CEC Channels |
|---|---|
Use Scenario: Protecting USB 2.0 D+ and D– lines against ESD events during cable insertion or handling in portable devices. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between signal line and ground, clamping transients before they reach the USB transceiver IC. Use Value: Maintains 480 Mbps data integrity with only 343 pF loading; clamps to ≤26 V within <1 ns, preventing damage to PHY-level ESD structures. |
Use Scenario: Safeguarding HDMI Display Data Channel (DDC) and Consumer Electronics Control (CEC) lines in TVs and set-top boxes. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor on 5 V-tolerant I²C-compatible buses operating at ≤400 kHz. Use Value: Adds <1.5 ns propagation delay and no measurable timing skew; withstands repeated ±30 kV contact discharges without parameter drift. |
| Automotive Camera Links | Industrial Sensor Interfaces |
Use Scenario: ESD protection for GMSL or FPD-Link III serial video streams in rear-view and surround-view camera modules. IC Role / Device Role / Timing Role: Signal-line TVS placed adjacent to connector entry point, referenced to chassis ground in isolated systems. Use Value: Operates reliably from –40 °C to +125 °C ambient; maintains 26 V clamping performance after 1000+ ESD strikes per AEC-Q101 stress test. |
Use Scenario: Transient suppression on 4–20 mA loop-powered sensor outputs exposed to field wiring surges in factory automation. IC Role / Device Role / Timing Role: Standoff-rated protector on analog output lines, absorbing 200 W surges without latch-up or thermal runaway. Use Value: Withstands 8.3 ms half-sine surges up to 50 A (IFSM); stable leakage (<0.1 μA at 16 V) prevents loop current error in precision transmitters. |
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 vs. 26 V), larger SMA package (4.5 × 2.7 mm), 400 pF capacitance. | Less suitable for high-speed interfaces; better for power rail or lower-frequency analog lines. | Select when board space allows larger footprint and higher VC is acceptable for 24 V system rails. |
| TPD2E001DRYR | Bi-directional dual-channel array (2×), 12 pF capacitance, 12 V VRWM, integrated 5.1 Ω series resistors. | Designed for ultra-high-speed USB 3.0/PCIe; not rated for >200 W surge or AEC-Q101. | Choose for sub-10 pF signal integrity needs on differential pairs where multi-line integration reduces layout complexity. |
Compared with SMAJ16A-E3/57T and TPD2E001DRYR, SMF16A-HM3_A18 delivers optimal balance of low capacitance (343 pF), tight clamping (26 V), AEC-Q101 qualification, and compact DO-219AB packaging - making it preferred for automotive USB, industrial HDMI, and ruggedized sensor interfaces where surge energy and temperature range are critical.
Availability
SMF16A-HM3_A18 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, automotive camera link hardening, and industrial 4–20 mA sensor output conditioning requiring stable component supply across long production cycles.
Supply support for SMF16A-HM3_A18 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, passive elements, and sensors, 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 automotive, industrial, and consumer electronics where low profile, high energy absorption, and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of SMF16A-HM3_A18 at its rated peak pulse current?
The SMF16A-HM3_A18 has a maximum clamping voltage (VC) of 26 V at its rated peak pulse current (IPPM) of 7.7 A using a 10/1000 μs waveform. This value is measured under standardized surge conditions and guarantees that protected downstream ICs experience no more than 26 V during transient events - critical for safeguarding 3.3 V or 5 V logic interfaces. The SMF16A-HM3_A18 achieves this with low incremental resistance and fast avalanche response.
Is SMF16A-HM3_A18 qualified for automotive applications?
Yes, SMF16A-HM3_A18 is AEC-Q101 qualified, meaning it has passed stress tests for temperature cycling, humidity, mechanical shock, and ESD required for automotive electronic components. It supports operating temperatures from –65 °C to +175 °C and is commonly used in automotive USB ports, camera links, and body control modules. The SMF16A-HM3_A18 meets these requirements as part of Vishay's qualified SMF family per Rev. 2.4 datasheet.
What package type does SMF16A-HM3_A18 use, and is it compatible with standard SMT processes?
SMF16A-HM3_A18 uses the DO-219AB (SMF) package - a low-profile, surface-mount case with 3.9 mm length, 1.9 mm width, and 1.08 mm height. It is fully compatible with standard reflow soldering (peak temperature ≤260 °C) and wave soldering. The SMF16A-HM3_A18 also complies with MSL Level 1, allowing unlimited floor life before assembly - simplifying manufacturing logistics for high-volume production.
How does the capacitance of SMF16A-HM3_A18 affect high-speed signal integrity?
With a typical junction capacitance of 343 pF at 0 V and 1 MHz, the SMF16A-HM3_A18 introduces minimal loading on high-speed lines such as USB 2.0 (480 Mbps), preserving signal rise time and eye opening. Its capacitance is lower than SMF15A (367 pF) and higher than SMF17A (324 pF), placing it in an optimal range for balancing ESD robustness and bandwidth. The SMF16A-HM3_A18 maintains this value across –65 °C to +125 °C, ensuring consistent performance in varying environments.
What is the standoff voltage rating of SMF16A-HM3_A18, and why is it important?
The SMF16A-HM3_A18 has a maximum stand-off voltage (VRWM) of 16 V - the highest continuous DC or RMS voltage it can block without significant leakage (<0.1 μA). This rating ensures reliable operation on 12 V or 15 V signal lines while providing sufficient margin below the 17.8 V minimum breakdown voltage. Selecting a VRWM correctly prevents false triggering during normal operation, and the SMF16A-HM3_A18's 16 V rating makes it ideal for 12 V industrial buses and automotive auxiliary circuits.
SMF16A-HM3_A18 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay
- 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:
- -
- Capacitance @ Frequency:
- 343pF @ 1MHz
- Operating Temperature:
- -65°C ~ 175°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
SMF16A-HM3_A18 FAQ
1.How can I place an order for SMF16A-HM3_A18 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF16A-HM3_A18 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-HM3_A18 reliable?
The price and inventory of SMF16A-HM3_A18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF16A-HM3_A18 is usually 5 days.
3.What payment methods are accepted for SMF16A-HM3_A18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF16A-HM3_A18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF16A-HM3_A18?
SMF16A-HM3_A18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF16A-HM3_A18 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-HM3_A18?
For technical support, including SMF16A-HM3_A18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF16A-HM3_A18 requirements.
6.How does Aetrix verify that SMF16A-HM3_A18 is sourced from the original manufacturer or authorized distributors?
All SMF16A-HM3_A18 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-HM3_A18 meets industry standards.
7.What is the process for return or replacement of SMF16A-HM3_A18?
All SMF16A-HM3_A18 units undergo pre-shipment inspection (PSI). If there is an issue with SMF16A-HM3_A18, 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-HM3_A18 part is unused and in its original packaging.
Return procedure for SMF16A-HM3_A18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF16A-HM3_A18 Tags
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