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Vishay General Semiconductor - Diodes Division VTVS12GSMF-M3-08
- Part No.:
- VTVS12GSMF-M3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS12GSMF-M3-08.pdf
- Description:
- TVS DIODE 12.4VWM 20.1VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,327
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Product details
Overview
VTVS12GSMF-M3-08 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 DC lines. It features 12.4 V maximum stand-off voltage (VRWM), 14.41–15.00 V reverse breakdown voltage (VBR) at 1 mA, 19.53 A peak pulse current (IPPM) under 10/1000 μs waveform, and clamps to 20.1 V at IPPM - used in automotive infotainment power rails and USB-C port protection.
For engineers reviewing the VTVS12GSMF-M3-08 datasheet, VTVS12GSMF-M3-08 pinout, VTVS12GSMF-M3-08 application, or VTVS12GSMF-M3-08 equivalent, key selection criteria include ±2 % VBR tolerance, IEC 61000-4-2 ±30 kV ESD immunity, 807 pF junction capacitance at 0 V, 175 °C max junction temperature, and compatibility with SOD-123W footprint layouts.
Technical Context
This device operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its precisely specified 14.41–15.00 V breakdown range. Its low-clamping 20.1 V VC at 19.53 A IPPM enables robust protection of 12 V nominal systems without overstressing downstream ICs.
The SMF package delivers 20 K/W thermal resistance to leads and supports wave/reflow soldering per J-STD-020 MSL level 1. With halogen-free molding compound and AEC-Q101 qualification available, it meets automotive-grade reliability requirements for under-hood and cabin electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W (10/1000 μs waveform) - sustains high-energy transients without failure |
| Stand-off Voltage VRWM | 12.4 V - blocks normal 12 V rail operation while remaining inactive |
| Breakdown Voltage VBR | 14.41–15.00 V at IT = 1 mA - tight ±2 % tolerance ensures predictable turn-on |
| Clamping Voltage VC | 20.1 V at IPPM = 19.53 A - limits voltage seen by protected ICs during surge |
| Junction Capacitance CD | 807 pF at VR = 0 V, f = 1 MHz - suitable for <10 Mbps data lines like USB 2.0 |
| ESD Immunity | ±30 kV contact & air discharge (IEC 61000-4-2) - exceeds Level 4 system-level ESD requirements |
| Operating Temperature | −55 °C to +175 °C - supports under-hood automotive deployment |
Pinout & Package
SMF (DO-219AB) low-profile surface-mount package: 3.9 mm × 1.9 mm × 1.08 mm body, cathode marked by bar on top surface, compatible with SOD-123W PCB footprints and reflow profiles up to 260 °C peak.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current return path during clamping | Connected to ground or low-impedance return plane; defines polarity for unidirectional operation |
| Cathode | Protected line connection point | Connected to signal/power line requiring protection; cathode marking aligns with PCB silkscreen polarity indicator |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % VBR tolerance | Enables precise coordination with 12 V system overvoltage thresholds and avoids premature conduction |
| "Low-Noise" fast response | Sub-nanosecond turn-on ensures clamping before sensitive ICs experience damaging voltage overshoot |
| Halogen-free & RoHS-compliant | Meets automotive ELV and global environmental compliance mandates without performance trade-offs |
| Wave and reflow solderable | Supports high-volume automated assembly with standard lead-free reflow profiles (peak ≤260 °C) |
| AEC-Q101 qualified option | Validated for automotive applications including infotainment, body control, and ADAS sensor interfaces |
Applications
| Automotive Infotainment Power Rail | USB-C Port Protection |
|---|---|
|
Use Scenario: Protecting 12 V supply lines feeding head unit processors and display drivers against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between power input and local bulk capacitor, clamping transients before they reach PMIC inputs. Use Value: 20.1 V clamping ensures downstream 12 V-rated regulators remain within safe operating area during 10/1000 μs surges up to 19.53 A. |
Use Scenario: Safeguarding USB-C CC and VBUS lines against ESD events and hot-plug induced transients in docking stations. IC Role / Device Role / Timing Role: Standoff-rated TVS connected from VBUS to GND, activated only during >12.4 V overvoltage events. Use Value: 807 pF capacitance avoids signal integrity degradation on 10 Gbps USB 3.2 Gen 2x1 links while delivering ±30 kV ESD protection. |
| Industrial Sensor Interface | Automotive Body Control Module |
|
Use Scenario: Shielding 12 V analog sensor outputs (e.g., pressure, temperature) from cable-induced surges in factory automation systems. IC Role / Device Role / Timing Role: Low-leakage (0.05 μA at VRWM) TVS placed at connector entry point to minimize impact on precision signal conditioning. Use Value: −55 °C to +175 °C operating range allows direct mounting near engine bay sensors without derating. |
Use Scenario: Protecting LIN bus power supplies and microcontroller I/O pins from battery reverse polarity and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional suppression element integrated into BCU power distribution network, coordinated with upstream fuses. Use Value: Tight ±2 % VBR enables reliable coordination with 13.5 V watchdog reset thresholds and prevents nuisance tripping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ12A-E3/57T | ±5 % VBR tolerance (12.4–14.8 V), 200 W PPPM, SMA package | Lower power rating and looser tolerance limit use in non-automotive 12 V systems | Select when cost sensitivity outweighs precision clamping and AEC-Q101 need |
| TPSMD12A | ±5 % VBR, 600 W PPPM, DO-214AB package, 25.5 V VC at 24.4 A | Higher clamping voltage reduces margin for 12 V ICs; larger footprint requires layout change | Choose only if higher surge energy handling is required and board space permits larger package |
Compared with SMAJ12A-E3/57T and TPSMD12A, VTVS12GSMF-M3-08 provides tighter ±2 % VBR control, lower 20.1 V clamping, and SMF package compatibility with compact SOD-123W layouts - making it optimal for space-constrained automotive and industrial 12 V protection where precision and footprint matter.
Availability
VTVS12GSMF-M3-08 is available at Aetrix Electronics and suitable for automotive infotainment systems, USB-C interface designs, and industrial sensor modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for VTVS12GSMF-M3-08 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 optoelectronics for automotive, industrial, and computing markets.
The VTVS eSMP® series delivers high-power transient suppression in ultra-low-profile packages, engineered specifically for next-generation automotive electronics and high-density portable devices demanding precision clamping and AEC-Q101 validation.
FAQ
What is the maximum clamping voltage of the VTVS12GSMF-M3-08 under rated surge conditions?
The VTVS12GSMF-M3-08 clamps to a maximum of 20.1 V at its rated peak pulse current of 19.53 A (10/1000 μs waveform). This value is measured per IEC 61000-4-5 test conditions and ensures protected 12 V circuits remain within safe operating limits during transient events. The VTVS12GSMF-M3-08 achieves this with minimal voltage overshoot due to its fast avalanche response.
Is the VTVS12GSMF-M3-08 suitable for automotive applications?
Yes - the VTVS12GSMF-M3-08 is offered in an AEC-Q101 qualified version and operates from −55 °C to +175 °C, meeting under-hood and cabin environmental requirements. Its ±2 % VBR tolerance, 20.1 V clamping, and IEC 61000-4-2 ±30 kV ESD rating make it appropriate for automotive infotainment, body control, and sensor interface protection. The VTVS12GSMF-M3-08 is explicitly referenced in Vishay's automotive-grade TVS documentation.
What does the "G" in VTVS12GSMF-M3-08 indicate?
The "G" in VTVS12GSMF-M3-08 denotes ±2 % tolerance on the reverse breakdown voltage (VBR), distinguishing it from "A"-suffix variants with ±5 % tolerance. This tighter specification enables more accurate coordination with system-level overvoltage thresholds and improves design margin in safety-critical 12 V applications. The VTVS12GSMF-M3-08 maintains identical package, power rating, and clamping performance as its "A" counterpart.
Does the VTVS12GSMF-M3-08 require special PCB layout considerations?
Yes - the VTVS12GSMF-M3-08 should be placed as close as possible to the protected interface (e.g., connector or IC pin) with short, low-inductance traces to ground. Its SMF (DO-219AB) package uses a recommended footprint of 2.9 mm × 1.4 mm pad spacing; thermal relief on cathode/anode pads improves solder joint reliability. The VTVS12GSMF-M3-08 benefits from a solid ground plane beneath the device to minimize clamping impedance.
What is the junction capacitance of the VTVS12GSMF-M3-08 and how does it affect high-speed signals?
The VTVS12GSMF-M3-08 has a typical junction capacitance of 807 pF at 0 V reverse bias and 1 MHz. While suitable for DC power rails and low-to-moderate speed data lines (e.g., USB 2.0, LIN, CAN FD), this capacitance may degrade signal integrity on >100 Mbps differential interfaces. For such cases, lower-capacitance alternatives should be evaluated. The VTVS12GSMF-M3-08 is not intended for HDMI or PCIe signal line protection.
VTVS12GSMF-M3-08 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):
- 12.4V
- Voltage - Breakdown (Min):
- 14.41V
- Voltage - Clamping (Max) @ Ipp:
- 20.1V
- Current - Peak Pulse (10/1000µs):
- 19.53A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 807pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS12GSMF-M3-08 FAQ
1.How can I place an order for VTVS12GSMF-M3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS12GSMF-M3-08 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 VTVS12GSMF-M3-08 reliable?
The price and inventory of VTVS12GSMF-M3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VTVS12GSMF-M3-08 is usually 5 days.
3.What payment methods are accepted for VTVS12GSMF-M3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS12GSMF-M3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS12GSMF-M3-08?
VTVS12GSMF-M3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS12GSMF-M3-08 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 VTVS12GSMF-M3-08?
For technical support, including VTVS12GSMF-M3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS12GSMF-M3-08 requirements.
6.How does Aetrix verify that VTVS12GSMF-M3-08 is sourced from the original manufacturer or authorized distributors?
All VTVS12GSMF-M3-08 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 VTVS12GSMF-M3-08 meets industry standards.
7.What is the process for return or replacement of VTVS12GSMF-M3-08?
All VTVS12GSMF-M3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS12GSMF-M3-08, 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 VTVS12GSMF-M3-08 part is unused and in its original packaging.
Return procedure for VTVS12GSMF-M3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS12GSMF-M3-08 Tags
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