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Vishay General Semiconductor - Diodes Division VTVS10ASMF-M3-18
- Part No.:
- VTVS10ASMF-M3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS10ASMF-M3-18.pdf
- Description:
- TVS DIODE 10.3VWM 16.3VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,526
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Product details
Overview
VTVS10ASMF-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 a 10.3 V maximum stand-off voltage (VRWM), 11.4–12.7 V reverse breakdown voltage (VBR) at 1 mA, 16.3 V clamping voltage (VC) at 23.2 A peak pulse current, and ±30 kV IEC 61000-4-2 ESD immunity.
For engineers reviewing the VTVS10ASMF-M3-18 datasheet, VTVS10ASMF-M3-18 pinout, VTVS10ASMF-M3-18 application, or VTVS10ASMF-M3-18 equivalent, key selection criteria include clamping performance under 10/1000 μs surges, low capacitance (988 pF) for signal integrity, AEC-Q101 qualification status, and compatibility with SOD-123W footprint layouts.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its 11.4–12.7 V breakdown range. Its 16.3 V clamping voltage at 23.2 A (10/1000 μs) ensures robust overvoltage suppression while maintaining safe margin below typical 12 V rail tolerances.
Constructed in halogen-free molding compound with MSL level 1 rating, the device supports wave and reflow soldering up to 260 °C peak temperature. Its 988 pF junction capacitance at 0 V bias enables use in moderate-speed data lines without excessive signal distortion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W (10/1000 μs waveform; defines maximum transient energy absorption capability) |
| Stand-off Voltage (VRWM) | 10.3 V (maximum continuous reverse operating voltage before significant leakage) |
| Breakdown Voltage (VBR) | 11.4–12.7 V at IT = 1 mA (avalanche initiation threshold; ±5 % tolerance) |
| Clamping Voltage (VC) | 16.3 V at IPPM = 23.2 A (voltage seen by protected circuit during worst-case surge) |
| Junction Capacitance (CD) | 988 pF at VR = 0 V, f = 1 MHz (impacts high-frequency signal integrity in data lines) |
| ESD Rating | ±30 kV contact & air discharge per IEC 61000-4-2 (meets industrial and automotive ESD immunity requirements) |
| Operating Temperature | −55 °C to +175 °C (supports under-hood automotive and industrial environments) |
Pinout & Package
Package: SMF (DO-219AB), low-profile surface-mount case compatible with SOD-123W footprint. Dimensions: 3.9 mm × 1.9 mm × 1.08 mm (L × W × H). Cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference terminal | Connected to system ground or low-impedance return path; forms clamping path during transients |
| Cathode | Protected line terminal | Connected to signal/power line requiring protection; reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power | Enables reliable suppression of IEC 61000-4-5 Level 3 (1 kV/2 Ω) surges on 12 V systems |
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes voltage overshoot during fast transients, improving safety margin for downstream ICs |
| 988 pF capacitance | Permits use on USB 2.0 and CAN FD lines without violating rise-time or insertion-loss specs |
| AEC-Q101 qualified option available | Validated for automotive applications including body electronics and infotainment interfaces |
| Halogen-free, RoHS-compliant | Meets environmental compliance requirements for global OEM and industrial supply chains |
Applications
| Automotive Sensor Interface | USB 2.0 Port Protection |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., pressure, temperature) in engine control modules. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between signal line and chassis ground. Use Value: Limits induced transients from load dump or ISO 7637-2 pulses to ≤16.3 V, preserving ADC input integrity. |
Use Scenario: Safeguarding USB D+ and D− lines against ESD events in docking stations and peripherals. IC Role / Device Role / Timing Role: Low-capacitance TVS connected inline with each data line to ground. Use Value: 988 pF capacitance avoids signal degradation at 480 Mbps; ±30 kV ESD rating exceeds USB-IF compliance. |
| Industrial CAN Bus Node | DC Power Input Protection |
Use Scenario: Shielding CANH/CANL transceivers from EFT bursts and lightning-induced surges in factory automation nodes. IC Role / Device Role / Timing Role: Bidirectional protection implemented using two unidirectional devices (one per line). Use Value: 400 W rating handles repetitive 10/1000 μs surges per IEC 61000-4-4; 175 °C TJ max supports enclosed enclosures. |
Use Scenario: Guarding 12 V input rails of embedded controllers against load dump and jump-start transients. IC Role / Device Role / Timing Role: Primary clamping device placed between input and ground, upstream of bulk capacitance. Use Value: 16.3 V clamping prevents overvoltage damage to LDOs and PMICs rated for 16 V absolute max. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | Same 10 V VRWM, but 400 W rating at 10/1000 μs; SMA package (DO-214AC), larger footprint (4.5 × 2.7 mm) | Higher thermal resistance (RthJL = 40 K/W vs. 20 K/W); less suitable for high-density PCBs | Select when legacy SMA layout exists or higher mounting flexibility is needed. |
| SMF10A | Identical SMF package and 10 V VRWM, but lower 200 W peak power (10/1000 μs); same 16.3 V VC | Insufficient for IEC 61000-4-5 Level 3; limited to ESD-only or low-energy surge scenarios | Choose only for cost-sensitive consumer applications where full 400 W surge immunity is not required. |
Compared with SMAJ10A and SMF10A, VTVS10ASMF-M3-18 delivers identical clamping performance in a smaller DO-219AB footprint with half the thermal resistance-enabling higher reliability in thermally constrained automotive and industrial designs.
Availability
VTVS10ASMF-M3-18 is available at Aetrix Electronics and suitable for automotive sensor interfaces, USB 2.0 port protection, and industrial CAN bus nodes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for VTVS10ASMF-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 VTVS eSMP® Series targets compact, high-power transient suppression in space-constrained applications-designed specifically for AEC-Q101-compliant automotive subsystems and ruggedized industrial interfaces.
FAQ
What is the clamping voltage of VTVS10ASMF-M3-18 at its rated peak pulse current?
The VTVS10ASMF-M3-18 exhibits a maximum reverse clamping voltage (VC) of 16.3 V when subjected to its rated 23.2 A peak pulse current (10/1000 μs waveform). This value is measured per standard test conditions and ensures predictable overvoltage limiting for downstream 12 V-rated ICs. The VTVS10ASMF-M3-18 maintains this clamping performance across its full operating temperature range of −55 °C to +175 °C.
Is VTVS10ASMF-M3-18 AEC-Q101 qualified?
VTVS10ASMF-M3-18 is part of the AEC-Q101-qualified VTVS eSMP® family; however, qualification applies to the base part number VTVS10ASMF with specific environmental and quality codes (e.g., "-HM3" or "-HM3-08"). The "-M3-18" suffix denotes tape-and-reel packaging (10K per 13″ reel) and RoHS-compliant tin terminations-not a separate qualification variant. Full AEC-Q101 test reports apply to the VTVS10ASMF series regardless of packaging suffix.
What is the junction capacitance of VTVS10ASMF-M3-18 and how does it affect signal lines?
The VTVS10ASMF-M3-18 has a typical junction capacitance of 988 pF at 0 V bias and 1 MHz. This value is measured under standardized conditions and directly impacts high-speed signal integrity: it is low enough to avoid excessive rise-time degradation on USB 2.0 (480 Mbps) and CAN FD (5 Mbps) lines, but high enough to provide effective low-impedance shunting for ESD and surge events. Designers should verify eye diagram compliance in final layout.
Can VTVS10ASMF-M3-18 be used in bidirectional protection configurations?
No-VTVS10ASMF-M3-18 is a unidirectional TVS diode, optimized for clamping positive transients on grounded-return systems. For bidirectional protection (e.g., AC-coupled data lines), two VTVS10ASMF-M3-18 devices must be used in series opposition, or a dedicated bidirectional part like VTVS10GSMF-M3-18 (±2 % VBR tolerance) should be selected. Using a single unidirectional device on floating or AC signals risks forward conduction and failure.
What is the thermal resistance of VTVS10ASMF-M3-18 and why does it matter?
The VTVS10ASMF-M3-18 has a thermal resistance from junction to lead (RthJL) of 20 K/W when mounted on an infinite heat sink. This low value-half that of comparable SMA packages-enables faster heat dissipation during repetitive surge events, reducing junction temperature rise and extending device lifetime. In practice, this allows VTVS10ASMF-M3-18 to sustain higher surge duty cycles in compact automotive ECUs without derating.
VTVS10ASMF-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):
- 10.3V
- Voltage - Breakdown (Min):
- 11.4V
- Voltage - Clamping (Max) @ Ipp:
- 16.3V
- Current - Peak Pulse (10/1000µs):
- 23.2A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 988pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS10ASMF-M3-18 FAQ
1.How can I place an order for VTVS10ASMF-M3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS10ASMF-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 VTVS10ASMF-M3-18 reliable?
The price and inventory of VTVS10ASMF-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 VTVS10ASMF-M3-18 is usually 5 days.
3.What payment methods are accepted for VTVS10ASMF-M3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS10ASMF-M3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS10ASMF-M3-18?
VTVS10ASMF-M3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS10ASMF-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 VTVS10ASMF-M3-18?
For technical support, including VTVS10ASMF-M3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS10ASMF-M3-18 requirements.
6.How does Aetrix verify that VTVS10ASMF-M3-18 is sourced from the original manufacturer or authorized distributors?
All VTVS10ASMF-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 VTVS10ASMF-M3-18 meets industry standards.
7.What is the process for return or replacement of VTVS10ASMF-M3-18?
All VTVS10ASMF-M3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS10ASMF-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 VTVS10ASMF-M3-18 part is unused and in its original packaging.
Return procedure for VTVS10ASMF-M3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS10ASMF-M3-18 Tags
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