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Vishay General Semiconductor - Diodes Division VTVS40GSMF-HM3-08
- Part No.:
- VTVS40GSMF-HM3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS40GSMF-HM3-08.pdf
- Description:
- TVS DIODE 39.6VWM 67VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,996
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Product details
Overview
VTVS40GSMF-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 39.6 V maximum stand-off voltage (VRWM), 46.11–48.00 V reverse breakdown voltage (VBR) at 1 mA, and clamps to ≤67 V at 5.87 A peak pulse current under 10/1000 μs waveform.
For engineers reviewing the VTVS40GSMF-HM3-08 datasheet, VTVS40GSMF-HM3-08 pinout, VTVS40GSMF-HM3-08 application, or VTVS40GSMF-HM3-08 equivalent, this device is selected for high-reliability IEC 61000-4-2 ±30 kV contact/air discharge protection in space-constrained industrial and automotive PCBs where low-profile SOD-123W-compatible packaging and halogen-free compliance are required.
Technical Context
This TVS diode operates as a unidirectional clamping device with avalanche breakdown behavior, optimized for fast response (<1 ns) and low clamping ratio (VC/VBR ≈ 1.4). Its thermal resistance of 20 K/W (junction-to-lead, infinite heat sink) supports sustained surge handling in thermally constrained layouts.
The device meets AEC-Q101 qualification requirements and is rated for operation from –55 °C to +175 °C junction temperature. Its 309 pF typical capacitance at 0 V enables use in signal lines up to ~100 MHz without excessive signal distortion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W (10/1000 μs waveform; defines maximum single-event surge energy absorption) |
| Stand-off Voltage (VRWM) | 39.6 V (maximum continuous reverse voltage before leakage exceeds 0.05 μA) |
| Breakdown Voltage (VBR) | 46.11–48.00 V at IT = 1 mA (±2 % tolerance; ensures precise triggering threshold) |
| Clamping Voltage (VC) | ≤67 V at IPPM = 5.87 A (limits downstream IC voltage during surge; clamping ratio ~1.4) |
| ESD Rating | ±30 kV contact / ±30 kV air per IEC 61000-4-2 (full immunity level for Class 4 ESD protection) |
| Capacitance | 309 pF at VR = 0 V, f = 1 MHz (low enough for USB 2.0 and CAN FD signal integrity) |
| Package | SMF (DO-219AB); compatible with SOD-123W footprint (3.9 × 1.9 × 1.08 mm) |
Pinout & Package
SMF (DO-219AB) package: surface-mount, low-profile (1.08 mm height), cathode-marked end, compatible with standard SOD-123W PCB footprints and reflow/wave soldering processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference terminal | Connected to system ground or low-impedance return path; forms clamping path with cathode |
| Cathode | Protected line terminal | Connected to signal/power line requiring protection; avalanche conduction occurs from cathode to anode during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power | Enables robust protection against IEC 61000-4-5 Level 3 surges (1 A, 2 Ω source) on 24 V industrial buses |
| ±2 % VBR tolerance | Reduces design margin overhead vs. ±5 % variants, allowing tighter VRWM selection near IC absolute maximum ratings |
| Halogen-free & RoHS-compliant | Meets automotive and industrial environmental compliance mandates without compromising thermal or electrical performance |
| AEC-Q101 qualified | Validated for automotive under-hood and infotainment applications requiring extended temperature cycling and reliability validation |
| Low-profile SMF package | 1.08 mm height enables placement beneath connectors or in dense layout zones where SOD-123F/SOD-123FL alternatives exceed height limits |
Applications
| Automotive Sensor Interface | Industrial USB 2.0 Port |
|---|---|
Use Scenario: Protecting LIN/CAN transceiver data lines and analog sensor outputs (e.g., pressure, temperature) in engine control units exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between signal line and chassis ground to shunt transients before reaching sensitive analog front-end or transceiver inputs. Use Value: Prevents latch-up or permanent damage to microcontroller GPIOs and transceivers during 100 V/50 ms load dump events while maintaining <1.5 V forward drop at 50 A surge. |
Use Scenario: ESD protection on USB 2.0 D+/D− lines in factory automation HMIs and programmable logic controllers with exposed front-panel ports. IC Role / Device Role / Timing Role: Low-capacitance TVS placed directly at USB connector pins to clamp IEC 61000-4-2 ±30 kV discharges before signal integrity degrades. Use Value: 309 pF capacitance avoids USB 2.0 eye diagram closure; ±2 % VBR ensures consistent clamping across production lots without derating VRWM. |
| DC Power Input Protection | Automotive Camera Module |
Use Scenario: Secondary surge protection on 12 V/24 V DC input rails feeding PMICs and MCU power domains in railway signaling and telecom remote units. IC Role / Device Role / Timing Role: Stand-off-rated TVS placed after primary MOV or GDT to handle residual fast-rising transients (e.g., lightning-induced coupling). Use Value: 39.6 V VRWM allows direct placement on 24 V nominal systems with 30 % tolerance; 400 W rating absorbs multiple 10/1000 μs surges without degradation. |
Use Scenario: ESD hardening of FAKRA or HSD cable interfaces in ADAS camera modules mounted behind vehicle windshields. IC Role / Device Role / Timing Role: Cathode-connected TVS on video differential pair lines to suppress electrostatic discharge during cable mating/unmating in humid environments. Use Value: AEC-Q101 qualification guarantees performance stability over 1000 thermal cycles (-40 °C to +125 °C); SMF package withstands mechanical stress from vibration and thermal expansion mismatch. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ40A-E3/57T | ±5 % VBR tolerance (44.4–49.1 V), 400 W rating, SMA package (2.5 mm height) | Higher profile limits use in ultra-thin modules; wider VBR spread requires larger VRWM margin | Select when cost sensitivity outweighs height constraints and ±2 % precision is not required |
| TPSMD40A | 400 W, ±5 % VBR, DO-214AB package (2.3 mm height), higher 70 V clamping at same IPPM | Less effective clamping (VC/VBR ≈ 1.75) increases risk of downstream IC overstress in tight-margin designs | Choose only if existing SMA footprint reuse is mandatory and clamping voltage margin >10 V is available |
Compared with VTVS40GSMF-HM3-08, SMAJ40A-E3/57T offers lower unit cost but sacrifices precision and board space efficiency, while TPSMD40A trades clamping performance for legacy package compatibility-neither provides the combined benefits of ±2 % VBR, 1.08 mm height, and 67 V clamping in a single device.
Availability
VTVS40GSMF-HM3-08 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial USB 2.0 ports, DC power input protection, and ADAS camera modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for VTVS40GSMF-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 VTVS-GSMF series targets high-precision, low-profile ESD and surge protection in space-constrained, thermally demanding applications-designed specifically for AEC-Q101 compliance and seamless integration into next-generation automotive and industrial PCBs.
FAQ
What is the maximum operating temperature for VTVS40GSMF-HM3-08?
VTVS40GSMF-HM3-08 has a junction temperature range of –55 °C to +175 °C, enabling reliable operation in under-hood automotive environments and industrial enclosures with minimal heatsinking. Its 20 K/W thermal resistance (junction-to-lead) supports sustained surge dissipation even at elevated ambient temperatures, provided PCB copper area meets Vishay's recommended footprint guidelines.
Does VTVS40GSMF-HM3-08 meet AEC-Q101 qualification?
Yes, VTVS40GSMF-HM3-08 is AEC-Q101 qualified, having passed stress tests including temperature cycling, humidity bias, and mechanical shock per the standard. This qualification confirms its suitability for automotive applications such as body control modules, ADAS sensors, and infotainment systems where long-term reliability under thermal and vibration stress is critical.
What is the clamping voltage of VTVS40GSMF-HM3-08 at its rated peak pulse current?
VTVS40GSMF-HM3-08 clamps to a maximum of 67 V at its rated peak pulse current of 5.87 A (10/1000 μs waveform). This value is measured under standardized test conditions and ensures predictable overvoltage limiting for downstream ICs with absolute maximum ratings up to 70 V, providing a 3 V safety margin for design robustness.
How does the ±2 % VBR tolerance of VTVS40GSMF-HM3-08 benefit circuit design?
The ±2 % VBR tolerance of VTVS40GSMF-HM3-08 allows tighter alignment between the device's breakdown threshold and the protected IC's absolute maximum voltage rating. This reduces the need for conservative VRWM derating, enabling more efficient use of voltage headroom in 24 V or 36 V systems and improving overall surge margin without increasing component count or board area.
Is VTVS40GSMF-HM3-08 compatible with standard SOD-123W PCB footprints?
Yes, VTVS40GSMF-HM3-08 uses the SMF (DO-219AB) package, which is mechanically compatible with SOD-123W footprints per Vishay's documentation. Its 3.9 mm length, 1.9 mm width, and 1.08 mm height match SOD-123W dimensions, enabling drop-in replacement in existing layouts-no PCB redesign is needed when upgrading from legacy SOD-123W TVS devices.
VTVS40GSMF-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):
- 39.6V
- Voltage - Breakdown (Min):
- 46.11V
- Voltage - Clamping (Max) @ Ipp:
- 67V
- Current - Peak Pulse (10/1000µs):
- 5.87A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 309pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS40GSMF-HM3-08 FAQ
1.How can I place an order for VTVS40GSMF-HM3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS40GSMF-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 VTVS40GSMF-HM3-08 reliable?
The price and inventory of VTVS40GSMF-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 VTVS40GSMF-HM3-08 is usually 5 days.
3.What payment methods are accepted for VTVS40GSMF-HM3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS40GSMF-HM3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS40GSMF-HM3-08?
VTVS40GSMF-HM3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS40GSMF-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 VTVS40GSMF-HM3-08?
For technical support, including VTVS40GSMF-HM3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS40GSMF-HM3-08 requirements.
6.How does Aetrix verify that VTVS40GSMF-HM3-08 is sourced from the original manufacturer or authorized distributors?
All VTVS40GSMF-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 VTVS40GSMF-HM3-08 meets industry standards.
7.What is the process for return or replacement of VTVS40GSMF-HM3-08?
All VTVS40GSMF-HM3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS40GSMF-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 VTVS40GSMF-HM3-08 part is unused and in its original packaging.
Return procedure for VTVS40GSMF-HM3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS40GSMF-HM3-08 Tags
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Diodes Incorporated
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