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Vishay General Semiconductor - Diodes Division VTVS14GSMF-HM3-18
- Part No.:
- VTVS14GSMF-HM3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS14GSMF-HM3-18.pdf
- Description:
- TVS DIODE 13.8VWM 22.2VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,866
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Product details
Overview
VTVS14GSMF-HM3-18 from Vishay Semiconductors is a unidirectional 400 W TransZorb® transient voltage suppressor diode in SMF (DO-219AB) package, designed for ESD and surge protection of low-voltage DC lines such as USB, HDMI, and automotive sensor interfaces. It features 13.8 V stand-off voltage (VRWM), 15.88–16.53 V reverse breakdown (VBR at 1 mA), 22.2 V maximum clamping voltage (VC) at 17.67 A peak pulse current, and ±30 kV IEC 61000-4-2 ESD immunity.
For engineers reviewing the VTVS14GSMF-HM3-18 datasheet, VTVS14GSMF-HM3-18 pinout, VTVS14GSMF-HM3-18 application, or VTVS14GSMF-HM3-18 equivalent, key selection criteria include clamping performance under 10/1000 μs surge, low capacitance (752 pF) for high-speed signal integrity, AEC-Q101 qualification status, halogen-free compliance, and compatibility with SOD-123W footprint constraints.
Technical Context
This device operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its specified breakdown range (15.88–16.53 V), delivering fast clamping response (<1 ns) to protect downstream ICs. Its low-noise technology ensures minimal parasitic interference during transient suppression.
The SMF package enables surface-mount reflow soldering with MSL level 1 moisture sensitivity and peak temperature tolerance up to 260 °C. Thermal resistance from junction to lead is 20 K/W, supporting operation from –55 °C to +175 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W (10/1000 μs waveform) - sustains industrial-level surge events without failure |
| Stand-off Voltage (VRWM) | 13.8 V - defines maximum continuous reverse operating voltage before conduction begins |
| Breakdown Voltage (VBR) | 15.88–16.53 V at IT = 1 mA - tight ±2 % tolerance ensures predictable turn-on across temperature |
| Clamping Voltage (VC) | 22.2 V at IPPM = 17.67 A - limits voltage seen by protected circuit during worst-case surge |
| Capacitance (CD) | 752 pF at VR = 0 V, f = 1 MHz - compatible with medium-speed data lines (e.g., CAN, LIN, sensor buses) |
| ESD Rating | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - meets automotive and industrial ESD immunity requirements |
| Operating Temperature | –55 °C to +175 °C - supports under-hood and industrial control environments |
| Package | SMF (DO-219AB) - low-profile, halogen-free, wave/reflow solderable, footprint-compatible with SOD-123W |
Pinout & Package
SMF (DO-219AB) package: 2-terminal surface-mount device with cathode marked by bar on top surface; dimensions 3.9 mm × 1.9 mm × 1.08 mm; optimized for automated placement and reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input side of protected line | Connected to signal or power line requiring transient suppression; referenced to system ground via cathode |
| Cathode | Ground reference terminal | Connected to system ground plane; carries full surge current during clamping event; polarity marking visible as bar |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power | Enables robust protection against IEC 61000-4-5 Level 4 surges (2 Ω source impedance) on 12 V systems |
| ±2 % VBR tolerance | Reduces design margin uncertainty versus ±5 % variants, allowing tighter voltage window allocation |
| Low-profile SMF package | 1.08 mm height enables use in space-constrained modules including automotive ECUs and portable electronics |
| AEC-Q101 qualified option | Validated for automotive applications requiring reliability under thermal cycling, mechanical shock, and humidity testing |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and JIS C 0950; supports green manufacturing and end-of-life recycling |
Applications
| Automotive Sensor Interface | Industrial CAN Bus Node |
|---|---|
|
Use Scenario: Protecting analog output lines from crankshaft/camshaft position sensors exposed to load dump and ISO 7637-2 transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and microcontroller ADC input to clamp overvoltage before damage occurs. Use Value: 22.2 V clamping voltage ensures MCU input stays below absolute maximum rating while maintaining signal fidelity under 17.67 A surge. |
Use Scenario: Safeguarding CANH/CANL differential pair in factory automation nodes subject to ESD and inductive switching noise. IC Role / Device Role / Timing Role: One VTVS14GSMF-HM3-18 per line (CANH and CANL) provides bidirectional protection via dual unidirectional configuration. Use Value: 752 pF capacitance avoids signal edge degradation at 1 Mbps CAN FD rates; ±30 kV ESD rating exceeds IEC 61000-4-2 requirement. |
| USB 2.0 Data Line Protection | Power Supply Input Filtering |
|
Use Scenario: Shielding D+ and D– lines of embedded USB host ports from human-body-model ESD events during hot-plug connection. IC Role / Device Role / Timing Role: Low-capacitance TVS placed directly at connector to shunt ESD energy before reaching USB transceiver PHY. Use Value: Fast <1 ns response time prevents latch-up in USB PHY; 13.8 V VRWM avoids leakage during normal 5 V bus operation. |
Use Scenario: Secondary overvoltage protection on 12 V auxiliary rail feeding infotainment subsystems after primary DC/DC regulation. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between rail and chassis ground to absorb residual transients escaping upstream filters. Use Value: 400 W rating handles sustained 10/1000 μs surges from relay coil flyback; 175 °C max junction temperature supports under-dash mounting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ14A | ±5 % VBR tolerance (15.6–17.2 V); 400 W rating; SMA package (DO-214AC) | Larger footprint (4.5 mm × 2.7 mm); higher thermal resistance (35 K/W) | Select when legacy SMA layout exists and ±5 % VBR margin is acceptable |
| TPSMF14A | Same SMF package; ±5 % VBR; 400 W; halogen-free; not AEC-Q101 qualified | No automotive qualification; identical electrical specs except VBR tolerance | Choose for cost-sensitive industrial designs where AEC-Q101 is not required |
Compared with SMAJ14A and TPSMF14A, VTVS14GSMF-HM3-18 offers tighter ±2 % breakdown tolerance and AEC-Q101 qualification in the same compact SMF footprint-critical for next-generation automotive sensor nodes requiring precise voltage thresholds and long-term reliability validation.
Availability
VTVS14GSMF-HM3-18 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus nodes, USB 2.0 data line protection, and 12 V power supply input filtering requiring stable component supply and consistent halogen-free compliance.
Supply support for VTVS14GSMF-HM3-18 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.
VTVS14GSMF-HM3-18 belongs to Vishay's TransZorb® eSMP® Series, engineered specifically for high-power transient suppression in space-constrained, high-reliability applications including automotive electronics and industrial control systems.
FAQ
What is the clamping voltage of VTVS14GSMF-HM3-18 at its rated peak pulse current?
The VTVS14GSMF-HM3-18 has a maximum reverse clamping voltage (VC) of 22.2 V when subjected to its rated peak pulse current of 17.67 A under a 10/1000 μs waveform. This value is measured per standard test conditions in the Vishay datasheet (Document Number: 85891, Rev. 2.2) and defines the upper voltage limit imposed on protected circuitry during surge events. The VTVS14GSMF-HM3-18 maintains this clamping performance across its full operating temperature range.
Is VTVS14GSMF-HM3-18 AEC-Q101 qualified?
The "H" in the part number VTVS14GSMF-HM3-18 denotes AEC-Q101 qualification per Vishay's ordering code table. This means the VTVS14GSMF-HM3-18 has undergone stress testing-including temperature cycling, humidity bias, and mechanical shock-to validate reliability for automotive applications. The qualification applies to the specific VTVS14GSMF-HM3-18 variant, not just the base VTVS14GSMF family.
What does the "HM3-18" suffix indicate in VTVS14GSMF-HM3-18?
In VTVS14GSMF-HM3-18, "H" indicates AEC-Q101 qualification, "M3" specifies halogen-free and RoHS-compliant terminations with tin plating, and "-18" denotes packaging in a 10K-per-13-inch reel (8 mm tape, minimum order quantity 50K). This full suffix identifies the exact environmental, qualification, and logistics configuration of the VTVS14GSMF-HM3-18 delivered by Vishay.
Can VTVS14GSMF-HM3-18 be used for bidirectional protection?
No - VTVS14GSMF-HM3-18 is a unidirectional TVS diode, intended for protection of DC lines with defined polarity. For true bidirectional protection (e.g., AC lines or differential pairs), two VTVS14GSMF-HM3-18 devices must be connected in series opposition, or a dedicated bidirectional part like VTVS14BGMF-HM3-18 should be selected. The VTVS14GSMF-HM3-18 datasheet explicitly states "Polarity: Unidirectional" in its PRIMARY CHARACTERISTICS table.
What is the thermal resistance of VTVS14GSMF-HM3-18, and how does it affect PCB layout?
The thermal resistance from junction to lead (RthJL) of VTVS14GSMF-HM3-18 is 20 K/W when mounted on an infinite heat sink. In practice, this means effective copper pour area under the SMF package's leads significantly impacts steady-state power dissipation capability. For repeated surge events, designers should maximize thermal pad area and consider internal layer copper connections - the VTVS14GSMF-HM3-18 footprint recommendation shows 1.3 mm × 1.3 mm pads per terminal to optimize heat transfer.
VTVS14GSMF-HM3-18 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-219AB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 13.8V
- Voltage - Breakdown (Min):
- 15.88V
- Voltage - Clamping (Max) @ Ipp:
- 22.2V
- Current - Peak Pulse (10/1000µs):
- 17.67A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 752pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS14GSMF-HM3-18 FAQ
1.How can I place an order for VTVS14GSMF-HM3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS14GSMF-HM3-18 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 VTVS14GSMF-HM3-18 reliable?
The price and inventory of VTVS14GSMF-HM3-18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VTVS14GSMF-HM3-18 is usually 5 days.
3.What payment methods are accepted for VTVS14GSMF-HM3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS14GSMF-HM3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS14GSMF-HM3-18?
VTVS14GSMF-HM3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS14GSMF-HM3-18 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 VTVS14GSMF-HM3-18?
For technical support, including VTVS14GSMF-HM3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS14GSMF-HM3-18 requirements.
6.How does Aetrix verify that VTVS14GSMF-HM3-18 is sourced from the original manufacturer or authorized distributors?
All VTVS14GSMF-HM3-18 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 VTVS14GSMF-HM3-18 meets industry standards.
7.What is the process for return or replacement of VTVS14GSMF-HM3-18?
All VTVS14GSMF-HM3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS14GSMF-HM3-18, 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 VTVS14GSMF-HM3-18 part is unused and in its original packaging.
Return procedure for VTVS14GSMF-HM3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS14GSMF-HM3-18 Tags
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