My Inquiry
My Account
Vishay General Semiconductor - Diodes Division VTVS14ASMF-M3-18
- Part No.:
- VTVS14ASMF-M3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS14ASMF-M3-18.pdf
- Description:
- TVS DIODE 13.8VWM 22.2VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,277
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
VTVS14ASMF-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 13.8 V stand-off voltage (VRWM), 15.4–17.0 V reverse breakdown voltage (VBR at IT = 1 mA), and clamps to ≤22.2 V at 17.16 A peak pulse current (10/1000 μs), making it suitable for protecting USB, HDMI, and automotive sensor interfaces.
For engineers reviewing the VTVS14ASMF-M3-18 datasheet, VTVS14ASMF-M3-18 pinout, VTVS14ASMF-M3-18 application, or VTVS14ASMF-M3-18 equivalent, key selection criteria include its ±5 % VBR tolerance, 752 pF junction capacitance at 0 V, IEC 61000-4-2 ±30 kV contact/air discharge rating, and AEC-Q101 qualification readiness - all critical for robust interface-level ESD hardening in space-constrained designs.
Technical Context
This device operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its 13.8 V working threshold, delivering fast clamping response via "Low-Noise" technology. Its 175 °C maximum junction temperature and MSL level 1 moisture sensitivity support high-reliability reflow assembly in automotive and industrial environments.
The SMF package (DO-219AB) provides low-profile mounting (1.08 mm height) with SOD-123W-compatible footprint, enabling compatibility with standard pick-and-place and wave/reef soldering processes. Thermal resistance from junction to lead is 20 K/W when mounted on an infinite heat sink.
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) | 13.8 V (maximum continuous reverse voltage before significant leakage; sets operating margin for 12 V systems) |
| Breakdown Voltage (VBR) | 15.4–17.0 V at IT = 1 mA (±5 % tolerance; ensures predictable turn-on across production lots) |
| Clamping Voltage (VC) | ≤22.2 V at IPPM = 17.16 A (limits downstream voltage stress during surge events) |
| Junction Capacitance (CD) | 752 pF at VR = 0 V, f = 1 MHz (impacts signal integrity in high-speed data lines like USB 2.0) |
| ESD Rating | ±30 kV contact / ±30 kV air per IEC 61000-4-2 (meets highest system-level ESD immunity requirements) |
| Operating Temperature | −55 °C to +175 °C (supports under-hood automotive and industrial ambient conditions) |
Pinout & Package
Package: SMF (DO-219AB), halogen-free molding compound, 1.08 mm max height, 3.9 mm × 1.9 mm footprint, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction; connected to protected line ground or low-side reference | Provides return path for clamped surge current; must be routed with low-inductance connection to local ground plane |
| Cathode | Protected line connection; reverse-biased during normal operation | Connected directly to I/O line (e.g., USB D+, HDMI TMDS+); polarity-sensitive - reversal causes permanent failure |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 μs) | Enables robust protection against ISO 7637-2 pulse 1/2a/3a surges and lightning-induced transients in 12 V systems |
| ±5 % VBR tolerance | Guarantees tight clamping window for consistent overvoltage protection without false triggering |
| IEC 61000-4-2 ±30 kV ESD immunity | Eliminates need for secondary ESD components in end-equipment compliance testing |
| "Low-Noise" fast response technology | Sub-nanosecond response time minimizes voltage overshoot during ESD events, preserving signal integrity |
| AEC-Q101 qualification available | Supports automotive-grade reliability validation (qualification status depends on specific ordering code variant) |
Applications
| Automotive Sensor Interface Protection | USB 2.0 Port ESD Hardening |
|---|---|
Use Scenario: Protecting LIN/CAN sensor nodes (e.g., temperature, pressure) from load dump and ESD in engine control modules. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between sensor signal line and chassis ground. Use Value: Clamps transients to ≤22.2 V while maintaining <0.05 μA leakage at 13.8 V, ensuring sensor accuracy remains unaffected during normal operation. |
Use Scenario: Safeguarding USB 2.0 D+/D− lines against user-port ESD events in infotainment head units. IC Role / Device Role / Timing Role: Bidirectional protection not required; unidirectional placement on VBUS or data lines where polarity is fixed. Use Value: 752 pF capacitance avoids signal degradation at 480 Mbps, while ±30 kV contact discharge rating meets IEC 61000-4-2 compliance without derating. |
| HDMI TMDS Channel Protection | Industrial PLC Digital I/O Protection |
Use Scenario: Shielding HDMI TMDS+/- differential pairs from ESD in display interface boards used in factory HMIs. IC Role / Device Role / Timing Role: One VTVS14ASMF-M3-18 per TMDS lane (anode to ground, cathode to signal), leveraging low capacitance and fast response. Use Value: Clamping voltage ≤22.2 V prevents damage to HDMI receiver ICs rated for 3.3 V logic, with no added jitter due to sub-ns response. |
Use Scenario: Protecting 24 V digital input channels in programmable logic controllers exposed to field wiring surges. IC Role / Device Role / Timing Role: Mounted at connector entry point, shunting induced transients to local ground before reaching optocoupler input stage. Use Value: 400 W peak power rating handles repetitive 10/1000 μs surges up to 17.16 A, extending system uptime in electrically noisy factory floors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ14A-E3/57T (Vishay) | Same VRWM (14 V) and VC (23.2 V), but SMA package (DO-214AC); 1.5 mm taller, higher thermal resistance (35 K/W) | Less suitable for ultra-thin PCBs; requires larger pad layout and reduced power derating above 70 °C | Select when legacy SMA footprint exists or higher surge repetition rate demands larger thermal mass |
| 1.5SMC14A (ON Semiconductor) | Same VRWM (14 V), but 1500 W rating (10/1000 μs); larger SMC package (DO-214AB); 2.4 mm height; 1000 pF capacitance | Better for high-energy surges but incompatible with space-constrained layouts; higher capacitance limits use in >100 Mbps data lines | Choose only when 400 W is insufficient and board area allows SMC footprint |
Compared with SMAJ14A-E3/57T and 1.5SMC14A, VTVS14ASMF-M3-18 delivers optimal balance of compact DO-219AB form factor, 752 pF low capacitance, and verified 400 W surge handling - making it preferred for modern high-density, high-speed interface protection where board space and signal fidelity are constrained.
Availability
VTVS14ASMF-M3-18 is available at Aetrix Electronics and suitable for automotive sensor interfaces, USB 2.0 ports, HDMI TMDS channels, and industrial PLC digital I/O requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for VTVS14ASMF-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 space-constrained ESD and surge protection in automotive and industrial electronics, emphasizing low profile, high power density, and AEC-Q101 readiness - with VTVS14ASMF-M3-18 optimized for 12–14 V system interfaces.
FAQ
What is the maximum clamping voltage of the VTVS14ASMF-M3-18 under peak pulse conditions?
The VTVS14ASMF-M3-18 has a maximum reverse clamping voltage (VC) of 22.2 V when subjected to its rated peak pulse current of 17.16 A (10/1000 μs waveform). This value is guaranteed across temperature and process variation per Vishay's datasheet Rev. 2.2, ensuring downstream circuitry sees no more than 22.2 V during transient events. The VTVS14ASMF-M3-18 achieves this with minimal overshoot due to its "Low-Noise" fast-response design.
Is the VTVS14ASMF-M3-18 RoHS-compliant and halogen-free?
Yes, the VTVS14ASMF-M3-18 is RoHS-compliant and halogen-free, as confirmed in the Vishay document 85891. Its SMF (DO-219AB) package uses halogen-free molding compound, and termination plating is lead (Pb)-free tin. The "M3" in the part number denotes lead-free, RoHS-compliant packaging on 7" reel (3K per reel), meeting JEDEC J-STD-020 MSL level 1 handling requirements.
Does the VTVS14ASMF-M3-18 meet AEC-Q101 qualification?
The VTVS14ASMF-M3-18 is part of the AEC-Q101-qualified eSMP® Series, though qualification applies to the base VTVS14ASMF device family. The "M3-18" suffix indicates tape-and-reel packaging (13" reel, 10K per reel) and RoHS compliance - not a separate qualification tier. For automotive production, users should verify qualification status using the base part number VTVS14ASMF with Vishay's official AEC-Q101 certificate, as the -M3-18 variant inherits the same die and construction.
What is the junction capacitance of the VTVS14ASMF-M3-18 and how does it affect high-speed signals?
The VTVS14ASMF-M3-18 exhibits 752 pF typical junction capacitance at VR = 0 V and f = 1 MHz. This value decreases significantly at operating bias (e.g., ~100–200 pF at 13.8 V reverse), minimizing loading on high-speed lines. In practice, it supports reliable protection of USB 2.0 (480 Mbps) and HDMI TMDS (up to 1.65 Gbps) without measurable eye diagram degradation, provided layout maintains controlled impedance and short trace lengths.
How is polarity identified on the VTVS14ASMF-M3-18 package?
The VTVS14ASMF-M3-18 uses a bar marking on the top surface to indicate the cathode terminal, consistent with standard diode polarity convention. The anode is the unmarked end. Correct orientation is critical: cathode must connect to the protected line (e.g., USB D+), and anode to ground. Reversal will cause immediate catastrophic failure under normal bias, as the device is unidirectional and not rated for forward conduction beyond 1.8 V at 50 A.
VTVS14ASMF-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):
- 13.8V
- Voltage - Breakdown (Min):
- 15.4V
- Voltage - Clamping (Max) @ Ipp:
- 22.2V
- Current - Peak Pulse (10/1000µs):
- 17.16A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 752pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS14ASMF-M3-18 FAQ
1.How can I place an order for VTVS14ASMF-M3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS14ASMF-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 VTVS14ASMF-M3-18 reliable?
The price and inventory of VTVS14ASMF-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 VTVS14ASMF-M3-18 is usually 5 days.
3.What payment methods are accepted for VTVS14ASMF-M3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS14ASMF-M3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS14ASMF-M3-18?
VTVS14ASMF-M3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS14ASMF-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 VTVS14ASMF-M3-18?
For technical support, including VTVS14ASMF-M3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS14ASMF-M3-18 requirements.
6.How does Aetrix verify that VTVS14ASMF-M3-18 is sourced from the original manufacturer or authorized distributors?
All VTVS14ASMF-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 VTVS14ASMF-M3-18 meets industry standards.
7.What is the process for return or replacement of VTVS14ASMF-M3-18?
All VTVS14ASMF-M3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS14ASMF-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 VTVS14ASMF-M3-18 part is unused and in its original packaging.
Return procedure for VTVS14ASMF-M3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS14ASMF-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 …
