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Vishay SMF16A-HE3_A08
- Part No.:
- SMF16A-HE3_A08
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF16A-HE3_A08.pdf
- Description:
- ESD PROTECTION DIODE SMF DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,482
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Product details
Overview
SMF16A-HE3_A08 from Vishay Semiconductors is a unidirectional surface-mount ESD protection diode in the SMF (DO-219AB) package, designed for transient voltage suppression in high-speed data lines. It features a 16 V stand-off voltage (VRWM), 17.8–19.7 V reverse breakdown range (VBR), 7.7 A peak pulse current (IPPM), 26 V maximum clamping voltage (VC) at IPPM, and 343 pF typical junction capacitance at 0 V - optimized for USB 2.0, HDMI, and industrial I/O port protection.
For engineers reviewing the SMF16A-HE3_A08 datasheet, SMF16A-HE3_A08 pinout, SMF16A-HE3_A08 application, or SMF16A-HE3_A08 equivalent, key selection criteria include clamping performance under 10/1000 μs surges, low capacitance for signal integrity, AEC-Q101 qualification status, and SOD-123W-compatible footprint compatibility with automated assembly processes.
Technical Context
This device operates as a single-channel unidirectional TVS diode, leveraging silicon avalanche technology to clamp transients above its breakdown threshold while maintaining low leakage (<0.1 μA at VRWM). Its low incremental surge resistance ensures rapid voltage stabilization during ESD events up to ±30 kV contact discharge per IEC 61000-4-2.
The SMF16A-HE3_A08 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. Its DO-219AB package enables wave and reflow soldering with MSL level 1 handling and peak temperature tolerance up to 260 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 16 V - maximum continuous reverse voltage before conduction begins; defines safe operating margin for 12–15 V nominal bus systems. |
| Reverse Breakdown (VBR) | 17.8–19.7 V at 1 mA - tight tolerance ensures predictable turn-on during overvoltage events without premature triggering. |
| Clamping Voltage (VC) | 26 V max at 7.7 A IPPM - limits downstream IC voltage stress during 10/1000 μs transients, protecting 24 V logic interfaces. |
| Junction Capacitance (CD) | 343 pF at 0 V, 1 MHz - balances ESD robustness and signal fidelity for <100 Mbps digital lines like RS-485 or CAN FD. |
| ESD Immunity | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - exceeds automotive and industrial immunity requirements without external filtering. |
| Package | DO-219AB (SOD-123W-compatible) - 3.9 × 1.9 × 1.08 mm low-profile outline enabling dense PCB layouts and automated placement. |
Pinout & Package
The SMF16A-HE3_A08 is a two-terminal unidirectional TVS diode in the DO-219AB (SMF) package. Cathode is marked by a bar on the device body; anode is unmarked. The package conforms to JEDEC DO-219AB outline and is compatible with SOD-123W, SOD-123F, and SOD-123FL footprints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side terminal | Connected to protected signal line; conducts surge current toward cathode during reverse overvoltage events. |
| Cathode | Ground/reference terminal | Connected to system ground or low-impedance return path; establishes clamping reference and enables fast avalanche response. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise fast response | Sub-nanosecond turn-on enables clamping before sensitive ICs experience overstress in ESD events. |
| AEC-Q101 qualified | Validated for automotive applications including infotainment and body electronics requiring reliability across temperature extremes. |
| 200 W peak pulse power (10/1000 μs) | Sustains repeated transient energy without degradation, supporting long-term field reliability in industrial environments. |
| MSL level 1 moisture sensitivity | Allows unlimited floor life before reflow, eliminating bake requirements and reducing manufacturing overhead. |
Applications
| Industrial I/O Protection | Automotive Sensor Interface |
|---|---|
Use Scenario: Protecting 24 V analog input channels on PLC modules against induced surges and ESD from field wiring. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between signal line and chassis ground to clamp transients before they reach ADC front-end. Use Value: 26 V clamping voltage ensures downstream op-amps and multiplexers remain within absolute maximum ratings during 1 kV surge tests. | Use Scenario: Shielding LIN bus nodes in door control modules from ESD during assembly and service operations. IC Role / Device Role / Timing Role: Standoff-rated transient suppressor on LIN signal line, referenced to battery ground with minimal capacitive loading. Use Value: 343 pF capacitance avoids signal rise-time degradation on 20 kbps LIN, preserving timing margins and error-free communication. |
| USB 2.0 Data Line Protection | HDMI DDC Channel Protection |
Use Scenario: Safeguarding USB 2.0 D+ and D− lines in portable medical devices against user-handling ESD. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional pair (two SMF16A-HE3_A08 devices) used per differential line to maintain impedance integrity. Use Value: Low 343 pF capacitance prevents eye diagram closure at 480 Mbps, meeting USB-IF signal integrity requirements. | Use Scenario: Protecting HDMI DDC (I²C) lines in AV receivers from hot-plug and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS on SDA/SCL lines referenced to system ground, preserving 100 kHz I²C timing. Use Value: 16 V VRWM accommodates 5 V DDC supply while clamping transients below 26 V to prevent EEPROM latch-up. |
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 | DO-214AC (SMA) package; 1.5× larger footprint; 28 V VC at 7.5 A; 450 pF capacitance. | Higher clamping and capacitance limit use in >10 Mbps interfaces; better suited for power rail protection. | Select SMAJ16A-E3/57T only when board space allows larger package and higher clamping is acceptable for 24 V DC inputs. |
| TPD2E001DRYR | Quad-channel, 0.5-pF per channel, 5.5 V VRWM; integrated ESD array in 1.45 × 1.0 mm USON-6. | Designed for ultra-high-speed data (USB 3.0, MIPI); not rated for 16 V bus protection or AEC-Q101. | Choose TPD2E001DRYR for sub-1 Gbps differential pairs where ultra-low capacitance is critical and voltage rating aligns with 3.3 V systems. |
Compared with SMAJ16A-E3/57T and TPD2E001DRYR, the SMF16A-HE3_A08 uniquely balances 16 V standoff, 26 V clamping, 343 pF capacitance, and AEC-Q101 qualification in a compact DO-219AB package - making it optimal for cost-sensitive, space-constrained 12–24 V industrial and automotive data line protection.
Availability
SMF16A-HE3_A08 is available at Aetrix Electronics and suitable for industrial I/O modules, automotive sensor interfaces, USB 2.0 ports, HDMI DDC channels, and PLC analog input protection requiring stable component supply and long-term lifecycle support.
Supply support for SMF16A-HE3_A08 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 manufacturer of discrete semiconductors and passive components, specializing in high-reliability solutions for automotive, industrial, and computing markets.
The SMF series belongs to Vishay's eSMP® family of surface-mount TVS diodes, engineered specifically for robust, low-profile ESD and surge protection in space-constrained, high-volume applications.
FAQ
What is the clamping voltage of the SMF16A-HE3_A08 under standard test conditions?
The SMF16A-HE3_A08 has a maximum reverse clamping voltage (VC) of 26 V when subjected to its rated peak pulse current of 7.7 A using a 10/1000 μs waveform. This value is measured per IEC 61000-4-5 and ensures downstream circuitry remains within safe operating limits during surge events. The SMF16A-HE3_A08 maintains this clamping performance across its full operating temperature range of −65 °C to +175 °C.
Is the SMF16A-HE3_A08 qualified to AEC-Q101 for automotive use?
Yes, the SMF16A-HE3_A08 is AEC-Q101 qualified, as confirmed in Vishay's official documentation (Rev. 2.4, 04-Jul-2023). It meets stress test requirements for temperature cycling, humidity bias, and ESD robustness required for automotive electronics. The SMF16A-HE3_A08 is suitable for under-hood and cabin applications including LIN bus nodes, sensor interfaces, and infotainment I/O protection.
What package type does the SMF16A-HE3_A08 use, and is it compatible with standard SMT processes?
The SMF16A-HE3_A08 uses the DO-219AB (SMF) package - a low-profile, surface-mount outline measuring 3.9 × 1.9 × 1.08 mm. It is fully compatible with wave and reflow soldering, rated for peak temperatures up to 260 °C, and classified as MSL level 1. The SMF16A-HE3_A08 footprint aligns with SOD-123W, enabling drop-in use in existing SMT lines without process changes.
How does the junction capacitance of the SMF16A-HE3_A08 affect high-speed signal integrity?
The SMF16A-HE3_A08 exhibits 343 pF typical junction capacitance at 0 V and 1 MHz, which is optimized for data rates up to 100 Mbps. This value minimizes signal distortion on lines such as RS-485, LIN, and USB 2.0 while retaining effective ESD suppression. For higher-speed interfaces like USB 3.0 or HDMI TMDS, lower-capacitance alternatives are recommended - the SMF16A-HE3_A08 is not intended for those applications.
What is the maximum peak pulse power rating for the SMF16A-HE3_A08, and under what waveform is it specified?
The SMF16A-HE3_A08 is rated for 200 W peak pulse power with a 10/1000 μs double-exponential waveform and 1000 W with an 8/20 μs waveform per IEC 61000-4-5. These ratings reflect non-repetitive surge capability under standardized test conditions. The SMF16A-HE3_A08 sustains these levels without parametric shift when mounted on a 3 mm × 3 mm Cu pad per JEDEC J-STD-020 guidelines.
SMF16A-HE3_A08 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-HE3_A08 FAQ
1.How can I place an order for SMF16A-HE3_A08 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF16A-HE3_A08 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-HE3_A08 reliable?
The price and inventory of SMF16A-HE3_A08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF16A-HE3_A08 is usually 5 days.
3.What payment methods are accepted for SMF16A-HE3_A08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF16A-HE3_A08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF16A-HE3_A08?
SMF16A-HE3_A08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF16A-HE3_A08 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-HE3_A08?
For technical support, including SMF16A-HE3_A08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF16A-HE3_A08 requirements.
6.How does Aetrix verify that SMF16A-HE3_A08 is sourced from the original manufacturer or authorized distributors?
All SMF16A-HE3_A08 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-HE3_A08 meets industry standards.
7.What is the process for return or replacement of SMF16A-HE3_A08?
All SMF16A-HE3_A08 units undergo pre-shipment inspection (PSI). If there is an issue with SMF16A-HE3_A08, 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-HE3_A08 part is unused and in its original packaging.
Return procedure for SMF16A-HE3_A08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF16A-HE3_A08 Tags
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