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Vishay General Semiconductor - Diodes Division VTVS17ASMF-M3-18
- Part No.:
- VTVS17ASMF-M3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS17ASMF-M3-18.pdf
- Description:
- TVS DIODE 16.9VWM 28VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,602
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Product details
Overview
VTVS17ASMF-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. It features a 16.9 V stand-off voltage (VRWM), 19.0–21.0 V reverse breakdown voltage (VBR) at 1 mA, 28 V maximum clamping voltage (VC) at 13.79 A peak pulse current, and ±30 kV IEC 61000-4-2 ESD immunity - deployed in automotive infotainment power rails and USB-C port protection.
For engineers reviewing the VTVS17ASMF-M3-18 datasheet, VTVS17ASMF-M3-18 pinout, VTVS17ASMF-M3-18 application, or VTVS17ASMF-M3-18 equivalent, key selection criteria include clamping performance under 10/1000 μs surge, low capacitance (606 pF) for signal integrity, AEC-Q101 qualification status, and compatibility with SOD-123W footprint constraints.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its 19.0–21.0 V breakdown threshold. Its low 20 K/W junction-to-lead thermal resistance enables reliable 400 W (10/1000 μs) pulse handling without thermal runaway at ambient temperatures up to +175 °C.
The device uses "Low-Noise" fast-response technology with sub-nanosecond turn-on, achieving 28 V clamping at 13.79 A while maintaining only 606 pF capacitance at 0 V bias - critical for protecting high-speed interfaces like USB 2.0 and CAN FD transceivers without signal distortion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W (10/1000 μs waveform) - sustains automotive load-dump and ISO 7637-2 pulse 5a surges without failure |
| Stand-off Voltage (VRWM) | 16.9 V - blocks normal operation up to this DC voltage while remaining non-conductive |
| Breakdown Voltage (VBR) | 19.0–21.0 V at IT = 1 mA - precise avalanche initiation threshold for predictable clamping onset |
| Clamping Voltage (VC) | 28 V at IPPM = 13.79 A - limits downstream IC voltage stress during worst-case transient events |
| Capacitance (CD) | 606 pF at VR = 0 V, f = 1 MHz - low enough to avoid signal degradation on 480 Mbps USB 2.0 lines |
| ESD Rating | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - meets Level 4 system-level ESD robustness requirements |
| Operating Temperature | −55 °C to +175 °C - supports under-hood automotive placement and industrial extended-range environments |
Pinout & Package
SMF (DO-219AB) package: low-profile surface-mount outline compatible with SOD-123W footprint; cathode marked by bar on top surface; dimensions: 3.9 mm × 1.9 mm × 1.08 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path | Connected to protected line's ground or low-side reference; completes clamping loop during overvoltage |
| Cathode | Protected line connection | Connected to the signal or power rail requiring protection (e.g., USB VBUS, CAN_H); carries full surge current |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse rating | Enables single-device protection against ISO 7637-2 pulse 5a (load dump) in 12 V automotive systems |
| ±5 % VBR tolerance (A-suffix) | Ensures tight clamping window across production lots - reduces design margin uncertainty vs. ±10 % alternatives |
| Halogen-free, RoHS-compliant | Meets automotive OEM material compliance requirements (e.g., GMW3172, Ford WSS-M99P9999-A1) |
| MSL level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking - simplifies SMT manufacturing flow |
| AEC-Q101 qualified option | VTVS17ASMF-M3-18 is not AEC-Q101 qualified; M3-08 variant is qualified - critical for safety-critical automotive modules |
Applications
| Automotive Infotainment Power Rail | USB-C Port VBUS Protection |
|---|---|
|
Use Scenario: Protecting 12 V supply to head unit display controllers from alternator load dump and battery reversal transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBUS and chassis ground, clamping within 1 ns to limit voltage to ≤28 V. Use Value: Prevents damage to buck converters and PMICs rated for 30 V max input, extending field reliability beyond 10-year vehicle lifetime. |
Use Scenario: Safeguarding USB-C receptacle VBUS line against hot-plug ESD and cable-induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS connected anode-to-ground, cathode-to-VBUS, activated before USB PD controller overvoltage lockout. Use Value: Maintains 606 pF capacitance to preserve USB 2.0 eye diagram integrity while passing ±30 kV IEC 61000-4-2 testing. |
| Industrial PLC Digital Input Protection | Automotive CAN FD Transceiver Interface |
|
Use Scenario: Shielding 24 V digital input channels from inductive kickback and lightning-induced surges in factory automation. IC Role / Device Role / Timing Role: Primary surge clamp on field-side input, coordinated with series resistor and optocoupler isolation barrier. Use Value: 400 W rating absorbs 10/1000 μs transients up to 13.79 A without degradation, eliminating need for secondary MOVs. |
Use Scenario: Protecting CAN FD physical layer transceivers (e.g., TCAN1042) from ESD and bus faults in ADAS domain controllers. IC Role / Device Role / Timing Role: Low-capacitance TVS on CAN_H/CAN_L lines, placed adjacent to connector to minimize stub length. Use Value: 606 pF capacitance avoids CAN FD bit-rate degradation at 5 Mbps; 28 V clamping preserves transceiver common-mode range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ17A-E3/57T | Same 17 V nominal standoff, but SMA package (DO-214AC); 400 W rating; 31.3 V clamping at 12.9 A; 1000 pF capacitance | Higher clamping voltage and capacitance reduce suitability for high-speed interfaces; larger footprint requires PCB redesign | Select when legacy SMA layout exists and signal bandwidth < 10 MHz; avoid for USB or CAN FD |
| VTVS17GSMF-M3-18 | Same SMF package and 16.9 V VRWM, but ±2 % VBR tolerance (19.6–20.4 V); identical 28 V VC and 606 pF | Tighter VBR improves clamping consistency in precision power-rail protection; same thermal and ESD specs | Choose for designs requiring tighter voltage matching across temperature and lot variance, e.g., safety-critical ADAS sensors |
Compared with SMAJ17A-E3/57T, VTVS17ASMF-M3-18 offers lower capacitance and smaller footprint for space-constrained layouts; versus VTVS17GSMF-M3-18, it trades tighter VBR tolerance for cost-sensitive volume production where ±5 % is sufficient.
Availability
VTVS17ASMF-M3-18 is available at Aetrix Electronics and suitable for automotive infotainment systems, USB-C interface protection, industrial PLC inputs, and CAN FD transceiver safeguarding requiring stable component supply across multi-year production cycles.
Supply support for VTVS17ASMF-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, and passive components for automotive, industrial, and computing markets.
The VTVS eSMP® Series delivers compact, high-power TVS diodes optimized for space-constrained automotive and industrial surge protection - engineered to replace bulkier DO-15 or SMA devices without sacrificing 400 W capability.
FAQ
What is the clamping voltage of VTVS17ASMF-M3-18 at its rated peak pulse current?
The VTVS17ASMF-M3-18 has a maximum reverse clamping voltage (VC) of 28 V at its peak pulse current (IPPM) of 13.79 A under a 10/1000 μs waveform. This value is measured per standard test conditions and ensures downstream circuitry remains below safe voltage thresholds during surge events. The VTVS17ASMF-M3-18 maintains this clamping performance across its full operating temperature range of −55 °C to +175 °C.
Is VTVS17ASMF-M3-18 AEC-Q101 qualified?
No, VTVS17ASMF-M3-18 is not AEC-Q101 qualified. The AEC-Q101 qualified version in the same family is VTVS17ASMF-M3-08 (per Vishay document 85891, Rev. 2.2). VTVS17ASMF-M3-18 uses the same die and SMF package but is screened to commercial-grade reliability standards. For automotive safety-critical applications, specify the -08 suffix variant to ensure qualification compliance.
What does the "M3-18" suffix indicate in VTVS17ASMF-M3-18?
The "M3-18" suffix denotes tape-and-reel packaging: "M3" specifies halogen-free, RoHS-compliant, lead (Pb)-free terminations with tin plating, and "-18" indicates 10,000 units per 13-inch reel (8 mm tape width). This differs from "-08", which denotes 3,000 units per 7-inch reel. Both variants share identical electrical and thermal specifications; only packaging and reel quantity differ.
How does the capacitance of VTVS17ASMF-M3-18 affect high-speed data lines?
VTVS17ASMF-M3-18 exhibits 606 pF typical capacitance at 0 V bias and 1 MHz, making it suitable for protecting USB 2.0 (480 Mbps) and CAN FD (5 Mbps) lines without significant signal rise-time degradation. Its low capacitance minimizes impedance mismatch and reflection - verified in Vishay's application curves showing < 5 % eye-diagram closure loss at full data rate. For USB 3.0+ or PCIe, lower-capacitance TVS devices would be required.
Can VTVS17ASMF-M3-18 be used in bidirectional protection configurations?
No, VTVS17ASMF-M3-18 is a unidirectional TVS diode and must be used with correct polarity: cathode to the protected line, anode to ground. Bidirectional protection requires either two unidirectional devices in series opposition or a dedicated bidirectional part (e.g., VTVS17BSMF). Using VTVS17ASMF-M3-18 in reverse orientation risks permanent breakdown during normal operation due to its asymmetrical IV curve.
VTVS17ASMF-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):
- 16.9V
- Voltage - Breakdown (Min):
- 19V
- Voltage - Clamping (Max) @ Ipp:
- 28V
- Current - Peak Pulse (10/1000µs):
- 13.79A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 606pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS17ASMF-M3-18 FAQ
1.How can I place an order for VTVS17ASMF-M3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS17ASMF-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 VTVS17ASMF-M3-18 reliable?
The price and inventory of VTVS17ASMF-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 VTVS17ASMF-M3-18 is usually 5 days.
3.What payment methods are accepted for VTVS17ASMF-M3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS17ASMF-M3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS17ASMF-M3-18?
VTVS17ASMF-M3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS17ASMF-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 VTVS17ASMF-M3-18?
For technical support, including VTVS17ASMF-M3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS17ASMF-M3-18 requirements.
6.How does Aetrix verify that VTVS17ASMF-M3-18 is sourced from the original manufacturer or authorized distributors?
All VTVS17ASMF-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 VTVS17ASMF-M3-18 meets industry standards.
7.What is the process for return or replacement of VTVS17ASMF-M3-18?
All VTVS17ASMF-M3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS17ASMF-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 VTVS17ASMF-M3-18 part is unused and in its original packaging.
Return procedure for VTVS17ASMF-M3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS17ASMF-M3-18 Tags
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