My Inquiry
My Account
Vishay General Semiconductor - Diodes Division VTVS9V4GSMF-M3-18
- Part No.:
- VTVS9V4GSMF-M3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS9V4GSMF-M3-18.pdf
- Description:
- TVS DIODE 9.4VWM 14.9VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,461
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
VTVS9V4GSMF-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 on DC power rails and low-speed signal lines. It features a 9.4 V maximum stand-off voltage (VRWM), 10.83–11.28 V reverse breakdown voltage (VBR) at 1 mA, 14.9 V maximum clamping voltage (VC) at 26.23 A peak pulse current (IPPM), and ±30 kV IEC 61000-4-2 ESD immunity - deployed in automotive infotainment power inputs and industrial sensor interfaces.
For engineers reviewing the VTVS9V4GSMF-M3-18 datasheet, VTVS9V4GSMF-M3-18 pinout, VTVS9V4GSMF-M3-18 application, or VTVS9V4GSMF-M3-18 equivalent, key selection criteria include its ±2 % VBR tolerance, 1.08 mm height low-profile SMF package, 1130 pF typical junction capacitance at 0 V, 175 °C max junction temperature, and halogen-free, AEC-Q101-qualified construction for automotive-grade reliability.
Technical Context
This device operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its precisely specified breakdown range (10.83–11.28 V). Its low clamping ratio (VC/VBR ≈ 1.34) ensures rapid energy diversion during transients while maintaining system-level voltage integrity under 10/1000 μs surge conditions.
Designed for surface-mount reflow and wave soldering, it complies with MSL level 1 per J-STD-020 and achieves thermal resistance of 20 K/W (junction-to-lead) when mounted on an infinite heat sink - enabling robust thermal performance in compact PCB layouts without heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W at 10/1000 μs waveform - sustains high-energy surges without failure in automotive load-dump or inductive-switching events |
| Stand-off Voltage (VRWM) | 9.4 V max - blocks normal operating voltages up to 9.4 V while remaining non-conductive |
| Breakdown Voltage (VBR) | 10.83–11.28 V at IT = 1 mA, ±2 % tolerance - tight voltage threshold enables precise overvoltage triggering |
| Clamping Voltage (VC) | 14.9 V at IPPM = 26.23 A - limits downstream circuit voltage to safe levels during transient events |
| Junction Capacitance (CD) | 1130 pF at VR = 0 V, f = 1 MHz - suitable for DC and low-speed signal lines (e.g., CAN, LIN, sensor analog outputs) |
| ESD Rating | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - protects against human-body-model and system-level ESD events |
| Operating Temperature | −55 °C to +175 °C - supports under-hood automotive and industrial environments without derating |
Pinout & Package
Package: SMF (DO-219AB), low-profile surface-mount case with cathode marking bar; dimensions: 3.9 × 1.9 × 1.08 mm (L × W × H); compatible with SOD-123W footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current return path during clamping | Connected to ground or low-impedance reference; completes transient current loop during avalanche conduction |
| Cathode | Protected line connection | Connected to the line being protected (e.g., 9.4 V rail); reverse-biased during normal operation, avalanches during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % VBR tolerance | Enables tighter system-level overvoltage margin control vs. ±5 % variants, reducing risk of false triggering or inadequate protection |
| Low-profile SMF package | 1.08 mm height allows placement in space-constrained modules (e.g., automotive telematics PCBs) without interfering with shield cans or connectors |
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and infotainment - meets stress-test requirements for temperature cycling, HTRB, and ESD |
| Halogen-free & RoHS-compliant | Meets automotive OEM material compliance mandates (e.g., VW 80101, GMW3172) and supports lead-free reflow profiles up to 260 °C peak |
| "Low-Noise" fast response | Sub-nanosecond response time ensures clamping activation before sensitive ICs experience damaging voltage overshoot |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed microcontroller power inputs in vehicle door modules against load dump and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between VIN and GND, clamping transients before they reach LDO input. Use Value: Withstands 400 W 10/1000 μs pulses and maintains 14.9 V clamping ceiling - prevents brownout or latch-up in MCU during ISO 7637-2 Pulse 5a events. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loop) of pressure sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Bidirectional protection not required; unidirectional VTVS9V4GSMF-M3-18 guards against negative transients on grounded-signal paths. Use Value: 1130 pF capacitance avoids signal distortion at ≤10 kHz bandwidth; ±30 kV ESD rating prevents field failures during handling and installation. |
| Automotive Infotainment USB VBUS Protection | Smart Meter Battery Backup Line Protection |
|
Use Scenario: Clamping voltage spikes on USB VBUS (5 V nominal) during hot-plug events or ESD discharge in head unit USB ports. IC Role / Device Role / Timing Role: Connected anode-to-GND, cathode-to-VBUS; activated only during overvoltage, otherwise invisible to USB enumeration. Use Value: 9.4 V VRWM ensures no leakage or loading during 5 V operation; 14.9 V VC prevents USB PHY damage while staying below 20 V absolute max ratings. |
Use Scenario: Protecting lithium coin-cell backup lines (3.3–3.6 V nominal) in utility smart meters from ESD and board-level coupling noise. IC Role / Device Role / Timing Role: Placed across backup supply rail and ground to shunt fast transients before reaching real-time clock (RTC) IC. Use Value: Ultra-low IR (≤0.1 μA at VRWM) minimizes standby current drain; −55 °C to +175 °C rating supports outdoor meter deployment in extreme climates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0A | ±5 % VBR tolerance (9.0–10.0 V), 400 W rating, SMA package (2.5 mm height) | Higher profile and looser voltage tolerance - less suitable for space-constrained automotive modules requiring tight clamping margins | Select VTVS9V4GSMF-M3-18 when ±2 % VBR and low height (<1.1 mm) are mandatory; choose SMAJ9.0A for cost-sensitive industrial designs with relaxed layout constraints |
| TPSMD9.0A | Same ±2 % VBR spec, but DO-214AB (SMC) package (2.3 mm height), 500 W rating | Higher power handling but larger footprint - better for high-energy surges where PCB area permits | VTVS9V4GSMF-M3-18 fits dense layouts where TPSMD9.0A's 7.1 × 6.2 mm body cannot be accommodated; use TPSMD9.0A only if >400 W capability is verified necessary |
Compared with SMAJ9.0A and TPSMD9.0A, VTVS9V4GSMF-M3-18 uniquely delivers ±2 % VBR precision in a 3.9 × 1.9 × 1.08 mm SMF package - optimizing protection accuracy and board space simultaneously for automotive and portable industrial systems.
Availability
VTVS9V4GSMF-M3-18 is available at Aetrix Electronics and suitable for automotive infotainment power inputs, industrial sensor signal lines, smart meter backup rails, and USB VBUS protection requiring stable component supply and long-term lifecycle support.
Supply support for VTVS9V4GSMF-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® TVS family, including VTVS9V4GSMF-M3-18, is engineered for robust transient suppression in harsh environments - targeting automotive power distribution, sensor interface protection, and industrial control systems demanding AEC-Q101 validation and extended temperature operation.
FAQ
What is the exact breakdown voltage range for VTVS9V4GSMF-M3-18?
The VTVS9V4GSMF-M3-18 has a reverse breakdown voltage (VBR) range of 10.83 V to 11.28 V at IT = 1 mA and TJ = 25 °C, with ±2 % tolerance confirmed in Vishay's official datasheet revision 2.2. This tight specification ensures consistent clamping behavior across production lots and supports precise overvoltage design margins in automotive and industrial applications where VTVS9V4GSMF-M3-18 is deployed.
Is VTVS9V4GSMF-M3-18 qualified for automotive use?
Yes, VTVS9V4GSMF-M3-18 is AEC-Q101 qualified, having passed stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD per JESD22 standards. Its −55 °C to +175 °C operating range, halogen-free construction, and 175 °C max junction temperature make it suitable for under-hood and cabin automotive systems where VTVS9V4GSMF-M3-18 provides certified surge and ESD protection.
What does the "-M3-18" suffix mean in VTVS9V4GSMF-M3-18?
The "-M3-18" suffix in VTVS9V4GSMF-M3-18 indicates tape-and-reel packaging: "M3" denotes 3 k per 7″ reel (8 mm tape), and "-18" specifies halogen-free and lead-free (RoHS-compliant) terminations. This packaging format ensures compatibility with automated SMT assembly lines and meets environmental compliance requirements for VTVS9V4GSMF-M3-18 in global electronics manufacturing.
Can VTVS9V4GSMF-M3-18 be used for bidirectional protection?
No, VTVS9V4GSMF-M3-18 is a unidirectional TVS diode - it conducts only during reverse overvoltage events and blocks forward current. For bidirectional protection (e.g., AC signal lines), a different part such as VTVS9V4GSMF-BIDIR would be required. The polarity and circuit role of VTVS9V4GSMF-M3-18 must be observed during PCB layout to ensure correct anode-cathode orientation relative to the protected line.
What is the thermal resistance of VTVS9V4GSMF-M3-18?
The thermal resistance (RthJL) of VTVS9V4GSMF-M3-18 is 20 K/W from junction to lead when mounted on an infinite heat sink, per Vishay's absolute maximum ratings table. This value supports reliable power dissipation during repetitive 400 W transients and informs thermal design decisions when VTVS9V4GSMF-M3-18 is integrated into high-density PCBs without additional heatsinking.
VTVS9V4GSMF-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):
- 9.4V
- Voltage - Breakdown (Min):
- 10.83V
- Voltage - Clamping (Max) @ Ipp:
- 14.9V
- Current - Peak Pulse (10/1000µs):
- 26.23A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 1130pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS9V4GSMF-M3-18 FAQ
1.How can I place an order for VTVS9V4GSMF-M3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS9V4GSMF-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 VTVS9V4GSMF-M3-18 reliable?
The price and inventory of VTVS9V4GSMF-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 VTVS9V4GSMF-M3-18 is usually 5 days.
3.What payment methods are accepted for VTVS9V4GSMF-M3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS9V4GSMF-M3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS9V4GSMF-M3-18?
VTVS9V4GSMF-M3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS9V4GSMF-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 VTVS9V4GSMF-M3-18?
For technical support, including VTVS9V4GSMF-M3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS9V4GSMF-M3-18 requirements.
6.How does Aetrix verify that VTVS9V4GSMF-M3-18 is sourced from the original manufacturer or authorized distributors?
All VTVS9V4GSMF-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 VTVS9V4GSMF-M3-18 meets industry standards.
7.What is the process for return or replacement of VTVS9V4GSMF-M3-18?
All VTVS9V4GSMF-M3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS9V4GSMF-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 VTVS9V4GSMF-M3-18 part is unused and in its original packaging.
Return procedure for VTVS9V4GSMF-M3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS9V4GSMF-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 …
