My Inquiry
My Account
Vishay General Semiconductor - Diodes Division VTVS15ASMF-M3-18
- Part No.:
- VTVS15ASMF-M3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS15ASMF-M3-18.pdf
- Description:
- TVS DIODE 15.1VWM 25VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,686
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
VTVS15ASMF-M3-18 from Vishay Semiconductors is a unidirectional 400 W TransZorb® transient voltage suppressor diode in SMF (DO-219AB) package, featuring 15.1 V stand-off voltage, 17.1–18.8 V reverse breakdown at 1 mA, and 25 V clamping voltage at 15.47 A peak pulse current; used for ESD and surge protection on low-voltage DC power rails and I/O lines in automotive body electronics.
For engineers reviewing the VTVS15ASMF-M3-18 datasheet, VTVS15ASMF-M3-18 pinout, VTVS15ASMF-M3-18 application, or VTVS15ASMF-M3-18 equivalent, key selection criteria include ±5 % VBR tolerance, 684 pF capacitance at 0 V, IEC 61000-4-2 ±30 kV ESD rating, and AEC-Q101 qualification status for automotive-grade reliability.
Technical Context
This device operates as a unidirectional avalanche diode with fast response time enabled by "Low-Noise" technology, designed to clamp transients before downstream ICs are damaged. Its thermal resistance of 20 K/W (junction-to-lead, infinite heat sink) supports sustained surge handling under high ambient temperatures up to +175 °C junction.
The SMF package provides compatibility with SOD-123W outline while enabling wave and reflow soldering per J-STD-020 MSL level 1 conditions (peak 260 °C). It delivers 400 W peak pulse power under 10/1000 μs waveform with <0.05 μA leakage at 15.1 V stand-off.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 15.1 V - Maximum continuous reverse operating voltage before significant leakage begins |
| Breakdown Voltage (VBR) | 17.1–18.8 V at IT = 1 mA - Tight ±5 % tolerance ensures predictable turn-on during overvoltage events |
| Clamping Voltage (VC) | 25 V at IPPM = 15.47 A - Limits transient voltage seen by protected circuitry to safe levels |
| Peak Pulse Power (PPPM) | 400 W (10/1000 μs) - Sustains high-energy surges without failure in automotive load-dump or ISO 7637-2 scenarios |
| Capacitance (CD) | 684 pF at VR = 0 V, f = 1 MHz - Low enough for USB 2.0 and CAN FD signal line protection without signal integrity loss |
| ESD Rating | ±30 kV contact / ±30 kV air (IEC 61000-4-2) - Meets highest industrial and automotive ESD immunity requirements |
| Junction Temperature Range | −55 °C to +175 °C - Enables deployment in engine bay, lighting modules, and under-hood ECUs |
Pinout & Package
SMF (DO-219AB) package: low-profile surface-mount case with cathode marking bar; dimensions 3.9 mm × 1.9 mm × 1.08 mm; compatible with SOD-123W footprint and reflow profiles up to 260 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to ground or lower-potential rail; defines unidirectional clamping direction |
| Cathode | Current exit terminal during reverse avalanche | Connected to protected line (e.g., 12 V supply or LIN bus); carries full surge current to ground |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 μs) | Enables robust protection against ISO 7637-2 Pulse 1, 2a, and 5a transients in 12 V automotive systems |
| ±5 % VBR tolerance | Guarantees tight clamping threshold across production lots, reducing design margin uncertainty |
| "Low-Noise" fast-response technology | Sub-nanosecond response time minimizes voltage overshoot during ESD events on high-speed interfaces |
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, humidity bias, and mechanical shock testing |
| Halogen-free, RoHS-compliant, MSL level 1 | Supports lead-free manufacturing and long-term reliability in humid environments without moisture-induced failure |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protecting 12 V power input and LIN bus pins from load dump and ESD in door module ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between LIN line and ground, clamping transients within nanoseconds. Use Value: Prevents latch-up or permanent damage to LIN transceivers such as TJA1020 while maintaining signal integrity via 684 pF capacitance. |
Use Scenario: Safeguarding 24 V digital input channels on programmable logic controllers exposed to field wiring surges. IC Role / Device Role / Timing Role: Standoff-rated protector on optocoupler input side, absorbing repetitive 400 W pulses without degradation. Use Value: Extends system uptime by eliminating false triggering and component replacement due to induced transients on long cable runs. |
| Automotive LED Headlamp Driver | USB-C Power Delivery Port |
Use Scenario: Clamping inrush and switching transients on constant-current driver supply rails in adaptive front-lighting systems. IC Role / Device Role / Timing Role: Primary overvoltage clamp on buck converter input, activated only during >15.1 V excursions. Use Value: Maintains driver IC operation at up to +175 °C ambient while surviving repeated 10/1000 μs surges per ISO 16750-2. |
Use Scenario: Secondary-level ESD protection on VBUS line of USB-C receptacles in portable medical devices. IC Role / Device Role / Timing Role: Fast-clamping diode placed after primary fuse, limiting VBUS overshoot during ±30 kV contact discharge. Use Value: Complies with IEC 61000-4-2 Level 4 without compromising USB 2.0 data rate due to controlled 684 pF loading. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A | Same 15 V stand-off, but 400 W rating at 10/1000 μs; SMA package (DO-214AC), larger footprint and higher RthJA | Less suitable for space-constrained automotive modules; requires larger PCB pad area and thermal relief | Select when legacy SMA layout exists and AEC-Q101 is not required |
| VTVS15GSMF-M3-18 | Same SMF package and electrical specs, but ±2 % VBR tolerance instead of ±5 % | Better suited for precision clamping where tighter voltage control reduces system-level margin overhead | Choose when tighter VBR tolerance justifies cost premium and qualification alignment is maintained |
Compared with SMAJ15A and VTVS15GSMF-M3-18, the VTVS15ASMF-M3-18 offers optimal balance of AEC-Q101 compliance, compact DO-219AB packaging, and cost-effective ±5 % tolerance-making it ideal for high-volume automotive body electronics where footprint and qualification are prioritized over ultra-tight VBR.
Availability
VTVS15ASMF-M3-18 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC inputs, LED headlamp drivers, and USB-C power delivery ports requiring stable component supply and AEC-Q101 assurance.
Supply support for VTVS15ASMF-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 TransZorb® eSMP® Series-including VTVS15ASMF-M3-18-is engineered for high-power transient suppression in harsh environments, with emphasis on AEC-Q101 qualification, low-profile packaging, and IEC 61000-4-2 ESD robustness.
FAQ
What is the maximum clamping voltage of the VTVS15ASMF-M3-18 under surge conditions?
The VTVS15ASMF-M3-18 has a maximum reverse clamping voltage (VC) of 25 V at 15.47 A peak pulse current (10/1000 μs waveform). This value is measured per standard test conditions and ensures downstream ICs see no more than 25 V during worst-case transients. The VTVS15ASMF-M3-18 maintains this clamping performance across its full operating temperature range of −55 °C to +175 °C.
Is the VTVS15ASMF-M3-18 qualified for automotive applications?
Yes, the VTVS15ASMF-M3-18 is AEC-Q101 qualified, having passed stress tests including temperature cycling, high-temperature operating life, and mechanical shock. It is rated for junction temperatures up to +175 °C and meets IEC 61000-4-2 ±30 kV ESD requirements-making it suitable for under-hood and body electronics applications. The VTVS15ASMF-M3-18 is explicitly listed in Vishay's AEC-Q101 qualified product documentation.
What package type does the VTVS15ASMF-M3-18 use, and is it compatible with automated assembly?
The VTVS15ASMF-M3-18 uses the SMF (DO-219AB) package-a halogen-free, low-profile surface-mount case measuring 3.9 mm × 1.9 mm × 1.08 mm. It is fully compatible with wave and reflow soldering per J-STD-020 MSL level 1 (peak 260 °C), and its orientation in carrier tape follows standard cathode-down placement for pick-and-place accuracy. The VTVS15ASMF-M3-18 footprint aligns with SOD-123W layouts.
How does the ±5 % VBR tolerance of the VTVS15ASMF-M3-18 affect circuit protection design?
The ±5 % VBR tolerance means the actual breakdown voltage of the VTVS15ASMF-M3-18 falls between 17.1 V and 18.8 V at 1 mA test current. This allows designers to set system overvoltage thresholds with known margins-e.g., ensuring clamping occurs well above nominal 12 V or 15 V rails but below absolute maximum ratings of protected ICs. The VTVS15ASMF-M3-18's tight tolerance avoids excessive derating while guaranteeing activation before damage occurs.
What is the typical junction-to-lead thermal resistance (RthJL) of the VTVS15ASMF-M3-18?
The VTVS15ASMF-M3-18 has a thermal resistance of 20 K/W from junction to lead when mounted on an infinite heat sink. This value reflects efficient heat dissipation through the leads during short-duration surges and supports reliable operation at high ambient temperatures. For PCB-level thermal design, the VTVS15ASMF-M3-18 benefits from copper pour under the leads and minimal trace length to maximize thermal transfer-critical in automotive modules operating near +105 °C ambient.
VTVS15ASMF-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):
- 15.1V
- Voltage - Breakdown (Min):
- 17.1V
- Voltage - Clamping (Max) @ Ipp:
- 25V
- Current - Peak Pulse (10/1000µs):
- 15.47A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 684pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS15ASMF-M3-18 FAQ
1.How can I place an order for VTVS15ASMF-M3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS15ASMF-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 VTVS15ASMF-M3-18 reliable?
The price and inventory of VTVS15ASMF-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 VTVS15ASMF-M3-18 is usually 5 days.
3.What payment methods are accepted for VTVS15ASMF-M3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS15ASMF-M3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS15ASMF-M3-18?
VTVS15ASMF-M3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS15ASMF-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 VTVS15ASMF-M3-18?
For technical support, including VTVS15ASMF-M3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS15ASMF-M3-18 requirements.
6.How does Aetrix verify that VTVS15ASMF-M3-18 is sourced from the original manufacturer or authorized distributors?
All VTVS15ASMF-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 VTVS15ASMF-M3-18 meets industry standards.
7.What is the process for return or replacement of VTVS15ASMF-M3-18?
All VTVS15ASMF-M3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS15ASMF-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 VTVS15ASMF-M3-18 part is unused and in its original packaging.
Return procedure for VTVS15ASMF-M3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS15ASMF-M3-18 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
