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Vishay General Semiconductor - Diodes Division VTVS9V4GSMF-HM3-08
- Part No.:
- VTVS9V4GSMF-HM3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS9V4GSMF-HM3-08.pdf
- Description:
- TVS DIODE 9.4VWM 14.9VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,101
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Product details
Overview
VTVS9V4GSMF-HM3-08 from Vishay Semiconductors is a unidirectional 400 W TransZorb® transient voltage suppressor diode in SMF (DO-219AB) package, designed for ESD and surge protection on low-voltage DC lines such as USB, HDMI, and automotive sensor interfaces. It features 9.4 V stand-off voltage (VRWM), 10.83–11.28 V reverse breakdown (VBR at IT = 1 mA), 14.9 V max clamping voltage (VC) at 26.23 A peak pulse current (IPPM), and ±30 kV IEC 61000-4-2 ESD immunity.
For engineers reviewing the VTVS9V4GSMF-HM3-08 datasheet, VTVS9V4GSMF-HM3-08 pinout, VTVS9V4GSMF-HM3-08 application, or VTVS9V4GSMF-HM3-08 equivalent, key selection criteria include its ±2 % VBR tolerance, halogen-free SOD-123W-compatible SMF package, 1.08 mm height, 175 °C junction rating, and suitability for space-constrained automotive and industrial PCBs requiring robust 10/1000 μs surge handling.
Technical Context
This device operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its precisely specified 10.83–11.28 V breakdown range. Its low 14.9 V clamping voltage at 26.23 A ensures downstream ICs remain below safe operating limits during 400 W transients.
The SMF package enables wave and reflow soldering with MSL level 1 moisture sensitivity, 260 °C peak reflow tolerance, and thermal resistance of 20 K/W to an infinite heat sink - critical for sustained surge duty in compact automotive modules and industrial I/O circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W (10/1000 μs waveform; defines maximum transient energy absorption capability) |
| Stand-off Voltage (VRWM) | 9.4 V (maximum continuous reverse working voltage before leakage exceeds 0.1 μA) |
| Breakdown Voltage (VBR) | 10.83–11.28 V at IT = 1 mA (±2 % tolerance; precise triggering threshold for overvoltage events) |
| Clamping Voltage (VC) | 14.9 V at IPPM = 26.23 A (voltage seen by protected circuit during worst-case surge) |
| ESD Rating | ±30 kV contact / ±30 kV air (IEC 61000-4-2 compliance; protects against human-body-model discharges) |
| Junction Temperature Range | −55 °C to +175 °C (supports under-hood automotive and high-ambient industrial environments) |
| Capacitance (CD) | 1130 pF at VR = 0 V, f = 1 MHz (low enough for USB 2.0 signal integrity; not suitable for high-speed differential pairs) |
Pinout & Package
Package: SMF (DO-219AB), low-profile surface-mount case compatible with SOD-123W footprint; dimensions: 3.9 mm × 1.9 mm × 1.08 mm; cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input side of protected line | Connected to signal/power line requiring surge suppression; referenced to system ground via cathode |
| Cathode | Ground reference terminal | Connected to system ground plane; provides return path for clamped transient current |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % VBR tolerance | Enables tighter design margins and predictable clamping onset versus ±5 % variants like VTVS9V4ASMF |
| "Low-Noise" fast response | Sub-nanosecond turn-on time minimizes voltage overshoot during ESD events |
| AEC-Q101 qualified option | VTVS9V4GSMF-HM3-08 includes AEC-Q101 qualification (per ordering code 'H'), enabling use in automotive ECUs without additional reliability screening |
| Halogen-free & RoHS-compliant | Meets automotive and industrial environmental compliance requirements (JESD201 class 2 whisker testing) |
| Reflow/wave solderable | Rated for peak reflow temperature up to 260 °C (MSL level 1), supporting standard SMT assembly processes |
Applications
| Automotive Sensor Interface | USB 2.0 Port Protection |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor inputs (e.g., pressure, temperature) in engine control units exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and chassis ground to clamp transients before they reach precision ADC or microcontroller input pins. Use Value: 14.9 V clamping ensures protected MCU GPIO remains within absolute maximum ratings during 26.23 A surges, while 175 °C TJ rating supports under-hood operation. |
Use Scenario: Safeguarding USB 2.0 D+ and D− lines against ESD events during hot-plug insertion in industrial docking stations. IC Role / Device Role / Timing Role: Discrete TVS diode installed per-line, leveraging 1130 pF capacitance to avoid signal integrity degradation at 480 Mbps. Use Value: ±30 kV IEC 61000-4-2 rating meets end-equipment ESD certification requirements without requiring additional filtering components. |
| Industrial PLC Digital Input | DC Power Rail Protection |
Use Scenario: Shielding 24 V digital input channels in programmable logic controllers from field-wiring induced surges and inductive kickback. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across input terminals to shunt transient energy to common ground before reaching optocoupler or Schmitt trigger input stage. Use Value: 9.4 V VRWM allows reliable operation at nominal 24 V supply with margin, while 400 W PPPM handles repetitive 10/1000 μs transients per IEC 61000-4-4. |
Use Scenario: Secondary-level protection on 12 V auxiliary power rails feeding infotainment subsystems in vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS placed between rail and ground to limit voltage excursions during battery load dump or alternator ripple events. Use Value: 10.83–11.28 V VBR ensures activation only during overvoltage faults, avoiding false triggering during normal 12 V ±10 % regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VTVS9V4ASMF-HM3-08 | ±5 % VBR tolerance (6.4–7.0 V min/max vs. 10.83–11.28 V); same package, power, and clamping | Less precise triggering; acceptable where wider voltage margin is permissible (e.g., non-critical I/O) | Select when cost sensitivity outweighs need for tight VBR control in production-grade automotive designs |
| SMAJ9.0A | 9.0 V VRWM, 10.0 V VBR min, 15.4 V VC at 25.9 A; SMA package (larger, 2.5 mm height) | Higher profile limits use in ultra-thin modules; lower clamping but less precise VBR | Choose if board layout allows SMA footprint and higher mounting height is acceptable for legacy compatibility |
Compared with VTVS9V4ASMF-HM3-08 and SMAJ9.0A, the VTVS9V4GSMF-HM3-08 delivers superior voltage accuracy (±2 %) and smallest form factor (SMF), making it optimal for next-gen automotive sensors and space-constrained USB ports where repeatable clamping onset and minimal PCB area are critical.
Availability
VTVS9V4GSMF-HM3-08 is available at Aetrix Electronics and suitable for automotive sensor interfaces, USB 2.0 port protection, and industrial PLC digital inputs requiring stable component supply, AEC-Q101 qualification, and long-term lifecycle support.
Supply support for VTVS9V4GSMF-HM3-08 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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The VTVS eSMP® series targets high-density transient protection in harsh environments, with emphasis on AEC-Q101 qualification, low-profile packaging, and precise voltage control for modern vehicle electronics and industrial automation systems.
FAQ
What is the clamping voltage of VTVS9V4GSMF-HM3-08 at its rated peak pulse current?
The VTVS9V4GSMF-HM3-08 has a maximum reverse clamping voltage (VC) of 14.9 V when subjected to its rated 26.23 A peak pulse current (IPPM) under a 10/1000 μs waveform. This value is measured per the conditions defined in Vishay's datasheet Document Number 85891, ensuring predictable overvoltage limiting for protected circuits.
Is VTVS9V4GSMF-HM3-08 AEC-Q101 qualified?
Yes, VTVS9V4GSMF-HM3-08 is AEC-Q101 qualified - confirmed by the 'H' in its ordering code (VTVS9V4GSMF-HM3-08), which denotes automotive-grade qualification per the Vishay eSMP® series specification. This makes it suitable for use in engine control units, body electronics, and other automotive applications requiring validated reliability.
What does the 'G' in VTVS9V4GSMF-HM3-08 indicate?
The 'G' in VTVS9V4GSMF-HM3-08 specifies ±2 % tolerance on the reverse breakdown voltage (VBR), distinguishing it from 'A'-suffix variants (e.g., VTVS9V4ASMF-HM3-08) that offer ±5 % tolerance. This tighter tolerance enables more deterministic surge response in safety-critical or high-precision protection schemes.
Can VTVS9V4GSMF-HM3-08 be used in bidirectional signal lines?
No, VTVS9V4GSMF-HM3-08 is a unidirectional TVS diode and must be used only on lines referenced to ground with polarity-aware placement (cathode to ground). For bidirectional protection (e.g., RS-485), a dedicated bidirectional variant or back-to-back configuration is required - VTVS9V4GSMF-HM3-08 alone cannot suppress positive- and negative-going transients symmetrically.
What is the thermal resistance of VTVS9V4GSMF-HM3-08?
The thermal resistance (RthJL) of VTVS9V4GSMF-HM3-08 is 20 K/W when mounted on an infinite heat sink, as specified in the Absolute Maximum Ratings table of Vishay's datasheet 85891. This value informs thermal design for repeated surge events but assumes ideal heatsinking - real-world PCB layout will increase effective thermal resistance.
VTVS9V4GSMF-HM3-08 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):
- 9.4V
- Voltage - Breakdown (Min):
- 10.83V
- Voltage - Clamping (Max) @ Ipp:
- 14.9V
- Current - Peak Pulse (10/1000µs):
- 26.23A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 1130pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS9V4GSMF-HM3-08 FAQ
1.How can I place an order for VTVS9V4GSMF-HM3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS9V4GSMF-HM3-08 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 VTVS9V4GSMF-HM3-08 reliable?
The price and inventory of VTVS9V4GSMF-HM3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VTVS9V4GSMF-HM3-08 is usually 5 days.
3.What payment methods are accepted for VTVS9V4GSMF-HM3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS9V4GSMF-HM3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS9V4GSMF-HM3-08?
VTVS9V4GSMF-HM3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS9V4GSMF-HM3-08 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 VTVS9V4GSMF-HM3-08?
For technical support, including VTVS9V4GSMF-HM3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS9V4GSMF-HM3-08 requirements.
6.How does Aetrix verify that VTVS9V4GSMF-HM3-08 is sourced from the original manufacturer or authorized distributors?
All VTVS9V4GSMF-HM3-08 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 VTVS9V4GSMF-HM3-08 meets industry standards.
7.What is the process for return or replacement of VTVS9V4GSMF-HM3-08?
All VTVS9V4GSMF-HM3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS9V4GSMF-HM3-08, 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 VTVS9V4GSMF-HM3-08 part is unused and in its original packaging.
Return procedure for VTVS9V4GSMF-HM3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS9V4GSMF-HM3-08 Tags
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