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Vishay General Semiconductor - Diodes Division VTVS63ASMF-M3-18
- Part No.:
- VTVS63ASMF-M3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS63ASMF-M3-18.pdf
- Description:
- TVS DIODE 63VWM 108VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,798
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Product details
Overview
VTVS63ASMF-M3-18 from Vishay Semiconductors is a unidirectional 400 W TransZorb® transient voltage suppressor diode in SMF (DO-219AB) package, designed for primary overvoltage protection of 63 V DC power rails and data lines. It features 70.8 V minimum and 78.2 V maximum reverse breakdown voltage at 1 mA, 108 A peak pulse current (10/1000 μs), and clamps to ≤108 V under surge, with ±30 kV IEC 61000-4-2 ESD immunity.
For engineers reviewing the VTVS63ASMF-M3-18 datasheet, VTVS63ASMF-M3-18 pinout, VTVS63ASMF-M3-18 application, or VTVS63ASMF-M3-18 equivalent, key selection criteria include its 63 V stand-off voltage, low 227 pF junction capacitance at 0 V, AEC-Q101 qualification option, halogen-free construction, and compatibility with SOD-123W footprint for automotive and industrial PCB layouts.
Technical Context
This TVS diode operates as a unidirectional clamping device, leveraging avalanche breakdown to divert transients above its 63 V working voltage while maintaining low leakage (<0.05 μA) below that threshold. Its thermal resistance of 20 K/W (junction-to-lead) enables reliable operation up to +175 °C junction temperature.
The SMF package supports wave and reflow soldering per J-STD-020 MSL level 1, with peak temperature tolerance up to 260 °C. Its "Low-Noise" technology ensures sub-nanosecond response time, critical for protecting high-speed interfaces like CAN FD and USB 2.0 against EFT and lightning-induced surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 63 V - Maximum continuous DC voltage the device blocks without clamping; defines protected rail rating. |
| Breakdown Voltage (VBR) | 70.8–78.2 V at 1 mA - Tight ±5 % tolerance ensures predictable turn-on during transients. |
| Peak Pulse Power (PPP) | 400 W (10/1000 μs) - Sustains high-energy surges typical of ISO 7637-2 Pulse 1/2a/5a in automotive systems. |
| Clamping Voltage (VC) | ≤108 V at 108 A - Limits voltage seen by downstream ICs during worst-case surge events. |
| Junction Capacitance (CD) | 227 pF at 0 V - Low enough for <100 Mbps data lines (e.g., LIN, CAN) without signal integrity degradation. |
| ESD Rating | ±30 kV contact / ±30 kV air (IEC 61000-4-2) - Meets highest-level system-level ESD immunity requirements. |
| Operating Temperature | −55 °C to +175 °C - Supports under-hood automotive, industrial motor control, and outdoor power supply applications. |
Pinout & Package
SMF (DO-219AB) low-profile surface-mount package: 3.9 mm × 1.9 mm × 1.08 mm, halogen-free molding compound, cathode marked by bar on top surface. Compatible with SOD-123W footprint and reflow profiles up to 260 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward conduction; tied to protected line ground or low-side reference | Connects to circuit ground or return path; forms clamping loop with cathode to shunt surge energy. |
| Cathode | Current exit during reverse-biased clamping; connects to protected line | Connected directly to the 63 V rail or signal line being protected; carries full IPPM during transient. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 μs) | Handles high-energy load dump and inductive switching surges common in 24 V/48 V vehicle electrical systems. |
| ±5 % VBR tolerance (A-suffix) | Enables precise coordination with downstream overvoltage protection thresholds in multi-stage clamp designs. |
| 227 pF junction capacitance | Minimizes signal distortion on medium-speed buses (e.g., CAN, RS-485) without requiring series impedance tuning. |
| AEC-Q101 qualification available | Validates reliability for automotive powertrain, body electronics, and ADAS modules subject to harsh thermal cycling. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declaration requirements for green manufacturing. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 63 V battery-fed ECUs in commercial vehicles against ISO 7637-2 load dump pulses and alternator ripple. IC Role / Device Role / Timing Role: Primary clamping element placed between battery input and DC-DC converter input stage. Use Value: Limits transient voltage to ≤108 V, preventing damage to 75 V-rated input capacitors and controller ICs. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to PLC analog input modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed across sensor output and ground to absorb field-wire EFT bursts. Use Value: Maintains signal fidelity with only 227 pF loading while surviving ±30 kV ESD events per IEC 61000-4-2. |
| Telecom DC Power Feeds | Motor Drive Control Signal Lines |
|
Use Scenario: Overvoltage protection on −48 V telecom rectifier outputs feeding remote radio units. IC Role / Device Role / Timing Role: Standoff-rated TVS on DC feed line upstream of hot-swap controllers and PMICs. Use Value: Blocks sustained overvoltages >63 V while clamping fast transients to safe levels for downstream silicon. |
Use Scenario: Protecting isolated gate driver enable/disable signals in 600 V IGBT inverters used in HVAC compressors. IC Role / Device Role / Timing Role: Clamping diode on logic-level control line referenced to floating gate drive ground. Use Value: Prevents latch-up in level-shifters with fast response and minimal parasitic capacitance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64A | Higher VRWM (64 V), same PPP (400 W), larger SMB package (4.6 × 3.9 mm), 100 pF capacitance | Less suitable for space-constrained layouts; better for higher-current PCB traces due to larger thermal mass | Select when board layout allows SMB footprint and lower capacitance is prioritized over size. |
| VTVS63GSMF-M3-18 | Tighter ±2 % VBR tolerance (73.0–76.0 V), identical VRWM (63 V), same SMF package and electrical specs | Better for precision clamping where narrow VBR distribution improves margin against downstream OV thresholds | Choose when tighter breakdown voltage control is required for coordinated multi-device protection schemes. |
Compared with SMBJ64A and VTVS63GSMF-M3-18, VTVS63ASMF-M3-18 offers optimal balance of compact SMF footprint, industry-standard ±5 % VBR tolerance, and proven AEC-Q101 readiness-making it ideal for volume automotive and industrial designs where cost, size, and qualification alignment are critical.
Availability
VTVS63ASMF-M3-18 is available at Aetrix Electronics and suitable for automotive body control modules, industrial programmable logic controllers, and telecom power distribution units requiring stable component supply and long-term lifecycle support.
Supply support for VTVS63ASMF-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 VTVS63ASMF-M3-18-is engineered for robust transient suppression in harsh environments, with emphasis on AEC-Q101 compliance, low-profile packaging, and repeatable clamping performance across temperature.
FAQ
What is the maximum clamping voltage of VTVS63ASMF-M3-18 at its rated peak pulse current?
The VTVS63ASMF-M3-18 has a maximum reverse clamping voltage (VC) of 108 V when subjected to its rated 108 A peak pulse current (10/1000 μs waveform). This value is guaranteed per Vishay's datasheet Rev. 2.2 and defines the upper voltage limit imposed on protected circuits during surge events. The clamping performance remains stable across the full operating temperature range of −55 °C to +175 °C.
Is VTVS63ASMF-M3-18 qualified to AEC-Q101?
VTVS63ASMF-M3-18 is offered in an AEC-Q101 qualified version (denoted by suffix "H" in ordering code, e.g., VTVS63ASMF-HM3-18). The base VTVS63ASMF-M3-18 variant is not automatically qualified unless explicitly ordered with the "H" environmental code. Engineers must specify the "H" suffix to receive AEC-Q101 certified units for automotive applications.
What is the junction capacitance of VTVS63ASMF-M3-18 and how does it affect signal integrity?
The VTVS63ASMF-M3-18 exhibits a typical junction capacitance of 227 pF at 0 V reverse bias and 1 MHz frequency. This value is low enough to avoid significant attenuation or timing skew on medium-speed digital lines such as CAN (up to 1 Mbps) and RS-485, while remaining compatible with standard PCB layout practices. Higher-speed interfaces (e.g., USB 2.0) may require additional filtering or alternative protection strategies.
Can VTVS63ASMF-M3-18 be used in bidirectional configurations?
No, VTVS63ASMF-M3-18 is a unidirectional TVS diode and must be used with correct polarity-cathode toward the protected line, anode to ground. For bidirectional protection (e.g., AC lines or differential data pairs), two VTVS63ASMF-M3-18 devices in series-opposing configuration or a dedicated bidirectional part like VTVS63BSMF-M3-18 would be required. Using it incorrectly in reverse bias risks permanent failure.
What is the recommended PCB footprint for VTVS63ASMF-M3-18?
VTVS63ASMF-M3-18 uses the SMF (DO-219AB) package and is compatible with the SOD-123W footprint per Vishay's design recommendations. The recommended pad layout is 2.9 mm × 1.4 mm for each terminal, with 1.3 mm spacing between pads and 1.3 mm pad length. Thermal relief and copper pour under the device should be minimized to avoid solder joint voiding during reflow.
VTVS63ASMF-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):
- 63V
- Voltage - Breakdown (Min):
- 70.8V
- Voltage - Clamping (Max) @ Ipp:
- 108V
- Current - Peak Pulse (10/1000µs):
- 3.54A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 227pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS63ASMF-M3-18 FAQ
1.How can I place an order for VTVS63ASMF-M3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS63ASMF-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 VTVS63ASMF-M3-18 reliable?
The price and inventory of VTVS63ASMF-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 VTVS63ASMF-M3-18 is usually 5 days.
3.What payment methods are accepted for VTVS63ASMF-M3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS63ASMF-M3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS63ASMF-M3-18?
VTVS63ASMF-M3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS63ASMF-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 VTVS63ASMF-M3-18?
For technical support, including VTVS63ASMF-M3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS63ASMF-M3-18 requirements.
6.How does Aetrix verify that VTVS63ASMF-M3-18 is sourced from the original manufacturer or authorized distributors?
All VTVS63ASMF-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 VTVS63ASMF-M3-18 meets industry standards.
7.What is the process for return or replacement of VTVS63ASMF-M3-18?
All VTVS63ASMF-M3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS63ASMF-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 VTVS63ASMF-M3-18 part is unused and in its original packaging.
Return procedure for VTVS63ASMF-M3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS63ASMF-M3-18 Tags
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