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Vishay General Semiconductor - Diodes Division VTVS3V3GSMF-HM3-08
- Part No.:
- VTVS3V3GSMF-HM3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS3V3GSMF-HM3-08.pdf
- Description:
- TVS DIODE 3.3VWM 8.9VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:44,002
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Product details
Overview
VTVS3V3GSMF-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 of low-voltage signal lines with 3.3 V stand-off voltage, ±2 % breakdown tolerance, and 8.9 V clamping at 43.99 A peak pulse current. It serves as primary overvoltage protection on USB, HDMI, and I²C interfaces in automotive infotainment and industrial control modules.
For engineers reviewing the VTVS3V3GSMF-HM3-08 datasheet, VTVS3V3GSMF-HM3-08 pinout, VTVS3V3GSMF-HM3-08 application, or VTVS3V3GSMF-HM3-08 equivalent, key selection criteria include its 3.3 V working voltage, ±30 kV IEC 61000-4-2 ESD rating, 2095 pF capacitance at 0 V, 175 °C max junction temperature, and halogen-free SOD-123W-compatible SMF package.
Technical Context
This device operates as a unidirectional avalanche diode, triggering at reverse breakdown voltage (6.57–6.84 V) to clamp transients while maintaining 3.3 V stand-off during normal operation. Its low-noise fast-response architecture achieves sub-nanosecond turn-on time, enabling effective suppression of ESD events per IEC 61000-4-2 contact/air discharge.
The SMF package provides thermal resistance of 20 K/W to leads and supports wave/reflow soldering up to 260 °C peak. With 1.08 mm height and 3.9 × 1.9 mm footprint, it fits space-constrained PCB layouts while delivering 400 W peak pulse power under 10/1000 μs waveform conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 3.3 V - Maximum continuous reverse voltage before conduction begins; matches 3.3 V logic rail systems. |
| Breakdown Voltage (VBR) | 6.57–6.84 V at IT = 1 mA - Tight ±2 % tolerance ensures predictable trigger point across temperature and production lots. |
| Clamping Voltage (VC) | 8.9 V at IPPM = 43.99 A - Limits transient voltage seen by downstream ICs to safe levels during 400 W surge events. |
| Peak Pulse Power (PPP) | 400 W (10/1000 μs) - Sustains high-energy surges common in automotive load-dump or hot-swap scenarios. |
| Capacitance (CD) | 2095 pF at VR = 0 V, f = 1 MHz - High capacitance limits use to low-speed interfaces (e.g., I²C, UART), not RF or high-speed data lines. |
| ESD Rating | ±30 kV contact / ±30 kV air (IEC 61000-4-2) - Meets highest-level system-level ESD immunity requirements without external shielding. |
| Operating Temperature | −55 °C to +175 °C - Qualified for under-hood automotive and industrial environments with wide thermal cycling. |
| Package | SMF (DO-219AB) - Low-profile (1.08 mm), halogen-free, MSL level 1, compatible with SOD-123W footprint and reflow processes. |
Pinout & Package
SMF (DO-219AB) package: surface-mount, unidirectional diode with cathode marked by bar on top surface; dimensions 3.9 mm × 1.9 mm × 1.08 mm; compatible with SOD-123W land pattern.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; defines current path during clamping event. |
| Cathode | Protected line input | Connected to signal line (e.g., USB D+); conducts avalanche current to anode when VRWM exceeded. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power | Enables robust protection against ISO 7637-2 pulse 1/2a/5a and IEC 61000-4-5 surges in 12 V automotive systems. |
| ±2 % VBR tolerance | Reduces design margin uncertainty vs. ±5 % variants, allowing tighter clamping margin above 3.3 V supply rails. |
| ±30 kV ESD immunity | Eliminates need for secondary ESD components on board-level interfaces subject to frequent human contact. |
| Halogen-free, RoHS-compliant | Meets automotive OEM material compliance requirements (e.g., GMW3172, Ford WSS-M99P9999-A1) and end-of-life recycling mandates. |
| AEC-Q101 qualified option | VTVS3V3GSMF-HM3-08 includes AEC-Q101 qualification (per ordering code "H"), validating reliability for automotive electronics. |
| Low-profile SMF package | 1.08 mm height enables placement beneath connectors or in stacked PCB assemblies where Z-axis space is constrained. |
Applications
| USB 2.0 Data Lines | HDMI CEC Channel |
|---|---|
|
Use Scenario: Protecting D+ and D− pins of USB 2.0 ports against ESD events during cable insertion and handling. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between signal line and ground, clamping transients before they reach USB transceiver IC. Use Value: Maintains 3.3 V signal integrity while suppressing ±30 kV contact discharges-preventing latch-up or damage to PHY layer without adding series impedance. |
Use Scenario: Safeguarding HDMI Consumer Electronics Control (CEC) bus operating at 3.3 V logic level in AV receivers and set-top boxes. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected inline on CEC line to absorb coupling noise and ESD from interconnected devices. Use Value: 2095 pF capacitance is acceptable for CEC's 400 Hz–1 MHz signaling, ensuring no timing distortion while meeting IEC 61000-4-2 immunity. |
| I²C Bus in Automotive ECUs | Industrial RS-485 Termination Nodes |
|
Use Scenario: Protecting SDA/SCL lines of I²C buses in engine control units exposed to conducted transients from solenoid switching. IC Role / Device Role / Timing Role: Low-capacitance TVS placed at bus entry point to shunt surge energy to chassis ground without loading 100 kHz–400 kHz clock/data signals. Use Value: 3.3 V VRWM aligns with microcontroller I/O voltage; 8.9 V VC prevents overvoltage stress on 5 V tolerant I²C buffers during 400 W surges. |
Use Scenario: Shielding termination resistors and transceiver inputs on RS-485 nodes in factory automation networks subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Primary front-end protector on differential pair, limiting common-mode transients before they reach isolated RS-485 driver/receiver. Use Value: 175 °C TJ max and AEC-Q101 qualification support deployment in uncooled enclosures near motors or drives with ambient temperatures up to 125 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ3.3A-E3/57T | ±5 % VBR tolerance (6.4–7.0 V), 200 W PPP, SMA package (2.5 mm height) | Lower power rating and looser tolerance reduce margin in high-energy automotive transients. | Select when cost sensitivity outweighs need for ±2 % precision or 400 W capability. |
| SMF3.3A | Same SMF package but ±5 % VBR, 200 W PPP, non-AEC-Q101 rated | Lacks automotive qualification and half the peak power; unsuitable for ISO 7637-2 compliance. | Use only in commercial-grade consumer electronics with lower surge exposure. |
Compared with SMAJ3.3A-E3/57T and SMF3.3A, VTVS3V3GSMF-HM3-08 delivers tighter voltage control, double the surge power handling, and AEC-Q101 validation-making it the preferred choice for automotive and industrial designs requiring guaranteed clamping performance and long-term reliability.
Availability
VTVS3V3GSMF-HM3-08 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial I²C sensor networks, and USB-based embedded diagnostics requiring stable component supply across multi-year production cycles.
Supply support for VTVS3V3GSMF-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, optoelectronics, and passive components for automotive, industrial, and computing markets.
The TransZorb® eSMP® Series-including VTVS3V3GSMF-HM3-08-is engineered for high-power transient suppression in space-constrained, thermally demanding applications where precision clamping and AEC-Q101 reliability are mandatory.
FAQ
What is the maximum clamping voltage of the VTVS3V3GSMF-HM3-08 under surge conditions?
The VTVS3V3GSMF-HM3-08 has a maximum reverse clamping voltage (VC) of 8.9 V at 43.99 A peak pulse current (10/1000 μs waveform). This value is measured per standard test conditions and ensures downstream ICs see no more than 8.9 V during a full 400 W transient event. The clamping performance is guaranteed across −55 °C to +175 °C operating range.
Is the VTVS3V3GSMF-HM3-08 qualified for automotive applications?
Yes, the VTVS3V3GSMF-HM3-08 carries AEC-Q101 qualification, as indicated by the "H" in its ordering code. This certification validates its robustness for automotive electronics, including engine control, body electronics, and infotainment systems subjected to harsh thermal, vibration, and electrical stress profiles defined in the AEC-Q101 standard.
How does the ±2 % breakdown voltage tolerance of VTVS3V3GSMF-HM3-08 improve system design margin?
The ±2 % VBR tolerance (6.57–6.84 V) of VTVS3V3GSMF-HM3-08 reduces uncertainty in the actual turn-on threshold versus the ±5 % variant (6.4–7.0 V), allowing designers to set tighter safety margins above the 3.3 V working voltage. This minimizes risk of premature conduction during normal operation while ensuring reliable clamping during transients.
Can VTVS3V3GSMF-HM3-08 be used on high-speed data lines like USB 3.0 or PCIe?
No, VTVS3V3GSMF-HM3-08 is not suitable for USB 3.0 or PCIe due to its 2095 pF capacitance at 0 V, which would severely degrade signal integrity at multi-Gbps data rates. It is intended for low-speed interfaces such as USB 2.0, I²C, UART, HDMI CEC, and RS-485 where capacitance impact is acceptable and ESD/surge protection is the primary requirement.
What is the thermal resistance and maximum junction temperature of VTVS3V3GSMF-HM3-08?
VTVS3V3GSMF-HM3-08 has a thermal resistance RthJL of 20 K/W (junction-to-lead, mounted on infinite heat sink) and a maximum junction temperature (TJ) of +175 °C. These ratings enable reliable operation in under-hood automotive environments and industrial enclosures where ambient temperatures exceed 100 °C, provided PCB copper area and layout support adequate heat dissipation.
VTVS3V3GSMF-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):
- 3.3V
- Voltage - Breakdown (Min):
- 6.57V
- Voltage - Clamping (Max) @ Ipp:
- 8.9V
- Current - Peak Pulse (10/1000µs):
- 43.99A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 2095pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS3V3GSMF-HM3-08 FAQ
1.How can I place an order for VTVS3V3GSMF-HM3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS3V3GSMF-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 VTVS3V3GSMF-HM3-08 reliable?
The price and inventory of VTVS3V3GSMF-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 VTVS3V3GSMF-HM3-08 is usually 5 days.
3.What payment methods are accepted for VTVS3V3GSMF-HM3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS3V3GSMF-HM3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS3V3GSMF-HM3-08?
VTVS3V3GSMF-HM3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS3V3GSMF-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 VTVS3V3GSMF-HM3-08?
For technical support, including VTVS3V3GSMF-HM3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS3V3GSMF-HM3-08 requirements.
6.How does Aetrix verify that VTVS3V3GSMF-HM3-08 is sourced from the original manufacturer or authorized distributors?
All VTVS3V3GSMF-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 VTVS3V3GSMF-HM3-08 meets industry standards.
7.What is the process for return or replacement of VTVS3V3GSMF-HM3-08?
All VTVS3V3GSMF-HM3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS3V3GSMF-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 VTVS3V3GSMF-HM3-08 part is unused and in its original packaging.
Return procedure for VTVS3V3GSMF-HM3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS3V3GSMF-HM3-08 Tags
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