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Vishay General Semiconductor - Diodes Division VTVS43GSMF-M3-08
- Part No.:
- VTVS43GSMF-M3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS43GSMF-M3-08.pdf
- Description:
- TVS DIODE 43.2VWM 73VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,635
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Product details
Overview
VTVS43GSMF-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 a 43.2 V maximum stand-off voltage (VRWM), 50.03–52.08 V reverse breakdown voltage (VBR) at 1 mA, and clamps to ≤73 V at 5.39 A peak pulse current (10/1000 μs), with ±2 % VBR tolerance and IEC 61000-4-2 ±30 kV contact/air discharge compliance.
For engineers reviewing the VTVS43GSMF-M3-08 datasheet, VTVS43GSMF-M3-08 pinout, VTVS43GSMF-M3-08 application, or VTVS43GSMF-M3-08 equivalent, this device serves as a high-reliability, AEC-Q101-qualified TVS for automotive infotainment power rails, industrial sensor interfaces, and USB-C port protection where precise clamping, low capacitance (292 pF), and 175 °C junction temperature operation are required.
Technical Context
The VTVS43GSMF-M3-08 employs avalanche breakdown physics to provide fast-response overvoltage clamping with typical response time <1 ns. Its unidirectional polarity enables protection of positive-rail-only circuits without reverse leakage concerns beyond 0.05 μA at VRWM.
Designed for surface-mount reflow and wave soldering, it uses halogen-free molding compound (UL 94 V-0), achieves 20 K/W thermal resistance (junction-to-lead), and maintains stable performance across -55 °C to +175 °C operating temperature range - critical for under-hood automotive and industrial control environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W (10/1000 μs waveform; sustains repeated surges without degradation) |
| Stand-off Voltage (VRWM) | 43.2 V (maximum continuous DC voltage before significant leakage begins) |
| Breakdown Voltage (VBR) | 50.03–52.08 V at 1 mA (±2 % tolerance ensures tight clamping threshold control) |
| Clamping Voltage (VC) | ≤73 V at IPPM = 5.39 A (limits downstream IC voltage stress during surge events) |
| Capacitance (CD) | 292 pF at 0 V, 1 MHz (low enough for USB 2.0 signal integrity; avoids data distortion) |
| ESD Rating | ±30 kV contact / ±30 kV air (IEC 61000-4-2 Level 4; eliminates need for external ESD stages) |
| Junction Temperature | -55 °C to +175 °C (supports placement near heat sources in engine control units) |
Pinout & Package
Package: SMF (DO-219AB), low-profile surface-mount case with cathode marking bar; dimensions 3.9 mm × 1.9 mm × 1.08 mm; compatible with SOD-123W footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference terminal | Connected to system ground or low-side return path; defines unidirectional conduction direction |
| Cathode | Protected line terminal | Connected to the line being protected (e.g., 48 V supply rail); carries clamped surge current to ground |
Key Features
| Feature | Design Value |
|---|---|
| "Low-Noise" fast response | Sub-nanosecond turn-on ensures clamping occurs before sensitive ICs experience overvoltage damage |
| AEC-Q101 qualification | Validated for automotive applications including powertrain, body electronics, and ADAS subsystems |
| Halogen-free & RoHS-compliant | Meets automotive and industrial environmental compliance requirements without compromising thermal or electrical performance |
| Reflow/wave solderable | Rated for peak reflow temperatures up to 260 °C (MSL level 1), enabling compatibility with standard PCB assembly lines |
| Low clamping ratio (VC/VBR) | ~1.44 (73 V / 50.03 V) minimizes voltage overshoot during transients while maintaining margin above VRWM |
Applications
| Automotive Infotainment Power Rail | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 48 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 48 V rail and chassis ground to clamp surges before they reach PMICs and SoCs. Use Value: Withstands 400 W peak pulse power and operates up to +175 °C, enabling direct placement on high-temp automotive PCBs without derating. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) of pressure/temperature transmitters from field-induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across signal and ground to shunt induced transients while preserving milliamp-level accuracy. Use Value: Low 0.05 μA leakage at 43.2 V VRWM prevents loading of precision current-loop circuitry; 292 pF capacitance avoids signal distortion. |
| USB-C Port VBUS Protection | Smart Meter Communication Interface |
|
Use Scenario: Clamping VBUS line (up to 20 V) in USB-C receptacles against ESD and hot-plug transients during plug insertion. IC Role / Device Role / Timing Role: Primary front-end TVS on VBUS path, positioned upstream of buck converters and load switches. Use Value: ±30 kV IEC 61000-4-2 rating meets USB-IF ESD requirements; compact DO-219AB footprint saves board space in slim portable designs. |
Use Scenario: Protecting RS-485 transceivers in smart electricity meters from lightning-induced surges on long outdoor communication lines. IC Role / Device Role / Timing Role: Bidirectional-capable protection solution used in unidirectional configuration across differential pair and ground. Use Value: 73 V clamping voltage provides safe margin below RS-485 common-mode limits (±12 V), while 400 W rating handles multi-kV surge events per IEC 61000-4-5. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ43A-E3/57T | ±5 % VBR tolerance (vs. ±2 %), higher 76 V clamping voltage at same IPPM, SMC package (larger footprint) | Less precise clamping threshold; unsuitable where tight VRWM margin is critical (e.g., 48 V systems with narrow overvoltage headroom) | Select when cost sensitivity outweighs clamping precision and board space is not constrained. |
| TPSMD43A | Same ±2 % VBR, but 1000 W rating (6.5 mm × 8.2 mm SMD package), higher 77 V VC at 12.5 A | Over-specified for 400 W use cases; introduces unnecessary thermal mass and layout area in space-constrained designs | Choose only if system-level surge testing requires >400 W capability or legacy SMD-5 package compatibility is mandatory. |
Compared with SMAJ43A-E3/57T and TPSMD43A, the VTVS43GSMF-M3-08 delivers tighter voltage tolerance, lower clamping, and minimal footprint - making it optimal for modern automotive and industrial modules where thermal efficiency, precision, and miniaturization are prioritized.
Availability
VTVS43GSMF-M3-08 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial sensor nodes, and USB-C power delivery applications requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for VTVS43GSMF-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, optoelectronics, and passive components for automotive, industrial, and computing markets.
The VTVS eSMP® Series targets high-density, high-temperature ESD and surge protection in space-constrained applications - engineered specifically for AEC-Q101 compliance and robust operation in harsh environments.
FAQ
What is the maximum operating temperature for the VTVS43GSMF-M3-08?
The VTVS43GSMF-M3-08 supports a junction temperature range of -55 °C to +175 °C, validated per AEC-Q101 stress testing. This allows direct mounting near heat-generating components in automotive engine control units and industrial motor drives without thermal derating. The VTVS43GSMF-M3-08 maintains stable clamping performance across its full rated temperature range.
Does the VTVS43GSMF-M3-08 meet automotive qualification standards?
Yes, the VTVS43GSMF-M3-08 is AEC-Q101 qualified, confirming reliability for automotive applications including powertrain, body electronics, and infotainment systems. Qualification covers HTOL, temperature cycling, mechanical shock, and ESD testing. The VTVS43GSMF-M3-08 is explicitly listed in Vishay's AEC-Q101 qualified product list under document 85891 Rev. 2.2.
What is the clamping voltage of the VTVS43GSMF-M3-08 at its rated peak pulse current?
The VTVS43GSMF-M3-08 clamps to a maximum of 73 V at its rated peak pulse current of 5.39 A (10/1000 μs waveform). This value is guaranteed across temperature and process variation, ensuring predictable overvoltage limiting for downstream ICs. The VTVS43GSMF-M3-08 achieves this with a clamping ratio of ~1.44 relative to its minimum VBR of 50.03 V.
Is the VTVS43GSMF-M3-08 compatible with lead-free reflow soldering processes?
Yes, the VTVS43GSMF-M3-08 is rated for peak reflow temperatures up to 260 °C and complies with J-STD-020 MSL level 1 handling. Its tin-plated terminations and halogen-free molding compound ensure compatibility with standard lead-free reflow profiles. The VTVS43GSMF-M3-08 requires no special baking or moisture precautions prior to assembly.
How does the ±2 % VBR tolerance of the VTVS43GSMF-M3-08 improve system design?
The ±2 % VBR tolerance enables tighter design margins between stand-off voltage (43.2 V) and clamping onset, reducing risk of premature conduction during normal operation while ensuring reliable triggering during transients. This precision allows safer operation in 48 V automotive systems where voltage headroom is limited. The VTVS43GSMF-M3-08's tight tolerance eliminates need for guard-banding in layout or derating calculations.
VTVS43GSMF-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):
- 43.2V
- Voltage - Breakdown (Min):
- 50.03V
- Voltage - Clamping (Max) @ Ipp:
- 73V
- Current - Peak Pulse (10/1000µs):
- 5.39A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 292pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS43GSMF-M3-08 FAQ
1.How can I place an order for VTVS43GSMF-M3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS43GSMF-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 VTVS43GSMF-M3-08 reliable?
The price and inventory of VTVS43GSMF-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 VTVS43GSMF-M3-08 is usually 5 days.
3.What payment methods are accepted for VTVS43GSMF-M3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS43GSMF-M3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS43GSMF-M3-08?
VTVS43GSMF-M3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS43GSMF-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 VTVS43GSMF-M3-08?
For technical support, including VTVS43GSMF-M3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS43GSMF-M3-08 requirements.
6.How does Aetrix verify that VTVS43GSMF-M3-08 is sourced from the original manufacturer or authorized distributors?
All VTVS43GSMF-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 VTVS43GSMF-M3-08 meets industry standards.
7.What is the process for return or replacement of VTVS43GSMF-M3-08?
All VTVS43GSMF-M3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS43GSMF-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 VTVS43GSMF-M3-08 part is unused and in its original packaging.
Return procedure for VTVS43GSMF-M3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS43GSMF-M3-08 Tags
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