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Vishay General Semiconductor - Diodes Division VTVS40GSMF-M3-18
- Part No.:
- VTVS40GSMF-M3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS40GSMF-M3-18.pdf
- Description:
- TVS DIODE 39.6VWM 67VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,716
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Product details
Overview
VTVS40GSMF-M3-18 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 such as USB, HDMI, and automotive sensor interfaces. It features 39.6 V stand-off voltage (VRWM), 46.11–48.00 V reverse breakdown (VBR at IT = 1 mA), 67 V maximum clamping voltage (VC) at 5.87 A peak pulse current (IPPM), and ±30 kV IEC 61000-4-2 ESD immunity.
For engineers reviewing the VTVS40GSMF-M3-18 datasheet, VTVS40GSMF-M3-18 pinout, VTVS40GSMF-M3-18 application, or VTVS40GSMF-M3-18 equivalent, key selection criteria include clamping performance under 10/1000 μs surge, low capacitance (309 pF) for high-speed signal integrity, AEC-Q101 qualification status, and compatibility with SOD-123W footprint for drop-in PCB replacement in automotive and industrial designs.
Technical Context
This device operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its 39.6 V stand-off threshold to clamp transients up to 400 W (10/1000 μs). Its 67 V clamping voltage at 5.87 A ensures robust protection for 3.3 V–5 V logic rails without overstressing downstream ICs.
The SMF (DO-219AB) package delivers 20 K/W thermal resistance to lead, supports wave and reflow soldering per J-STD-020 MSL level 1, and maintains stable operation from −55 °C to +175 °C junction temperature - critical for under-hood automotive and industrial power supply inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W (10/1000 μs waveform) - sustains high-energy surges without failure in automotive load-dump or inductive switching events |
| Stand-off Voltage (VRWM) | 39.6 V - blocks normal operating voltage while remaining inactive until transient exceeds threshold |
| Breakdown Voltage (VBR) | 46.11–48.00 V at IT = 1 mA (±2 % tolerance) - tight VBR enables precise overvoltage trip point for sensitive 40 V systems |
| Clamping Voltage (VC) | 67 V at IPPM = 5.87 A - limits voltage seen by protected IC to safe margin below absolute maximum ratings |
| Capacitance (CD) | 309 pF at VR = 0 V, f = 1 MHz - low enough for USB 2.0 and CAN FD data lines without signal degradation |
| ESD Rating | ±30 kV contact / ±30 kV air (IEC 61000-4-2) - meets Level 4 system-level ESD immunity for infotainment and ADAS interfaces |
| Operating Temperature | −55 °C to +175 °C - qualified for engine control units, battery management, and industrial motor drives |
Pinout & Package
Package: SMF (DO-219AB), halogen-free molding compound, 1.08 mm height, 3.9 mm length, 1.9 mm width, cathode marked by bar on top surface. Compatible with SOD-123W, SOD-123F, and SOD-123FL footprints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; defines conduction path during reverse transient |
| Cathode | Protected line input | Connected to signal/power line being safeguarded; carries clamped surge current to anode |
Key Features
| Feature | Design Value |
|---|---|
| "Low-Noise" fast response | Sub-nanosecond turn-on time minimizes voltage overshoot before clamping engages |
| AEC-Q101 qualification | Validated for automotive applications including powertrain, body electronics, and ADAS sensors |
| Halogen-free & RoHS-compliant | Meets automotive OEM material compliance requirements (JESD201 class 2 whisker testing) |
| Reflow/wave solderable | Rated for peak temperatures up to 260 °C - compatible with standard PCB assembly processes |
| MSL level 1 handling | No dry-pack or baking required prior to assembly - reduces manufacturing overhead |
Applications
| Automotive Sensor Interface | USB 2.0 Data Line Protection |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., pressure, temperature) in engine control modules exposed to ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and microcontroller ADC input to shunt transients before they reach precision analog circuitry. Use Value: 67 V clamping ensures protected MCU IO remains below 70 V absolute max rating during 50 V/100 ms load dump events. |
Use Scenario: Safeguarding USB 2.0 D+/D− lines in vehicle infotainment head units against ESD from user interaction. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted directly at connector to absorb ±30 kV contact discharge before signal integrity degrades. Use Value: 309 pF capacitance avoids USB 2.0 eye diagram distortion while maintaining <1 ns response to ESD events. |
| Industrial CAN FD Node | DC Power Input Protection |
Use Scenario: Shielding CAN FD transceivers (e.g., TCAN1042) on factory automation controllers from cable-induced surges. IC Role / Device Role / Timing Role: Bidirectional protection not required; unidirectional VTVS40GSMF-M3-18 used on VCC-supplied side of isolated CAN bus to clamp positive-going spikes. Use Value: 400 W peak power rating handles repetitive 10/1000 μs transients common in motor drive environments without derating. |
Use Scenario: Guarding 48 V auxiliary power inputs in telecom base stations against lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: First-line clamping device placed upstream of DC-DC converter input to limit voltage stress on primary MOSFETs and bulk capacitors. Use Value: 39.6 V VRWM allows reliable blocking of nominal 48 V rail while clamping 100 V+ transients to 67 V. |
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 (44.4–49.3 V), 400 W rating, SMA package (DO-214AC), higher RthJA | Larger footprint; less suitable for space-constrained automotive modules | Select when legacy SMA layout exists and AEC-Q101 is not required |
| TPSMD40A | 400 W, 39.6 V VRWM, ±5 % VBR, SMC package (DO-214AB), 100 pF capacitance | Lower capacitance but larger size; better for high-speed lines where board area permits | Prefer for PCIe or Gigabit Ethernet where <150 pF is mandatory and 7.1 mm × 6.2 mm footprint is acceptable |
Compared with SMAJ40A-E3/57T and TPSMD40A, VTVS40GSMF-M3-18 offers tighter ±2 % VBR tolerance for predictable clamping, DO-219AB's 3.9 mm × 1.9 mm footprint for dense layouts, and AEC-Q101 validation - making it optimal for next-gen automotive ECUs and compact industrial gateways.
Availability
VTVS40GSMF-M3-18 is available at Aetrix Electronics and suitable for automotive sensor interfaces, USB 2.0 data line protection, and industrial CAN FD nodes requiring stable component supply across extended production lifecycles.
Supply support for VTVS40GSMF-M3-18 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 VTVS40GSMF-M3-18 - is engineered specifically for high-power, low-profile transient suppression in harsh-environment electronics, with emphasis on AEC-Q101 compliance and IEC 61000-4-2 robustness.
FAQ
What is the clamping voltage of VTVS40GSMF-M3-18 at its rated peak pulse current?
The VTVS40GSMF-M3-18 has a maximum reverse clamping voltage (VC) of 67 V at its specified peak pulse current (IPPM) of 5.87 A under a 10/1000 μs waveform. This value is measured per IEC 61000-4-5 test conditions and ensures downstream ICs remain within safe operating voltage limits during surge events. The VTVS40GSMF-M3-18 achieves this clamping performance while maintaining only 309 pF capacitance at 0 V bias.
Is VTVS40GSMF-M3-18 qualified for automotive applications?
Yes, VTVS40GSMF-M3-18 is AEC-Q101 qualified, meaning it has passed stress tests for temperature cycling, humidity, mechanical shock, and ESD required for automotive electronic components. Its −55 °C to +175 °C operating range and DO-219AB package robustness make VTVS40GSMF-M3-18 suitable for engine control, body electronics, and ADAS sensor modules where reliability under thermal and vibration stress is critical.
What does the "G" in VTVS40GSMF-M3-18 indicate?
The "G" in VTVS40GSMF-M3-18 denotes ±2 % tolerance on the reverse breakdown voltage (VBR), distinguishing it from "A"-suffix variants with ±5 % tolerance. For VTVS40GSMF-M3-18, VBR is guaranteed between 46.11 V and 48.00 V at IT = 1 mA - enabling tighter design margins in systems where precise clamping onset is essential, such as 40 V-rated power supplies or CAN FD VCC protection.
Can VTVS40GSMF-M3-18 be used in bidirectional configurations?
No, VTVS40GSMF-M3-18 is a unidirectional TVS diode and must be used with correct polarity: cathode toward the protected line, anode to ground. It does not provide symmetrical clamping for AC or bipolar transients. For bidirectional protection, two VTVS40GSMF-M3-18 devices in series-opposed configuration or a dedicated bidirectional part like VTVS40BGS-M3-18 would be required - but VTVS40GSMF-M3-18 itself functions only in one direction.
What is the moisture sensitivity level (MSL) rating for VTVS40GSMF-M3-18?
VTVS40GSMF-M3-18 is rated MSL level 1 per J-STD-020, meaning it has unlimited floor life at ≤30 °C/60 % RH and requires no baking or dry-pack handling before reflow soldering. This simplifies manufacturing logistics and eliminates yield loss from moisture-related popcorning - a key advantage over higher-MSL alternatives in high-volume automotive and industrial assembly lines.
VTVS40GSMF-M3-18 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:
- General Purpose
- Capacitance @ Frequency:
- 309pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS40GSMF-M3-18 FAQ
1.How can I place an order for VTVS40GSMF-M3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS40GSMF-M3-18 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-M3-18 reliable?
The price and inventory of VTVS40GSMF-M3-18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VTVS40GSMF-M3-18 is usually 5 days.
3.What payment methods are accepted for VTVS40GSMF-M3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS40GSMF-M3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS40GSMF-M3-18?
VTVS40GSMF-M3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS40GSMF-M3-18 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-M3-18?
For technical support, including VTVS40GSMF-M3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS40GSMF-M3-18 requirements.
6.How does Aetrix verify that VTVS40GSMF-M3-18 is sourced from the original manufacturer or authorized distributors?
All VTVS40GSMF-M3-18 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-M3-18 meets industry standards.
7.What is the process for return or replacement of VTVS40GSMF-M3-18?
All VTVS40GSMF-M3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS40GSMF-M3-18, 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-M3-18 part is unused and in its original packaging.
Return procedure for VTVS40GSMF-M3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS40GSMF-M3-18 Tags
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