My Inquiry
My Account
Vishay General Semiconductor - Diodes Division VTVS9V4ASMF-M3-08
- Part No.:
- VTVS9V4ASMF-M3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS9V4ASMF-M3-08.pdf
- Description:
- TVS DIODE 9.4VWM 14.9VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:29,978
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
VTVS9V4ASMF-M3-08 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 9.4 V maximum stand-off voltage (VRWM), 10.5–11.6 V reverse breakdown voltage (VBR) at 1 mA, and clamps to ≤14.9 V at 25.48 A peak pulse current (10/1000 μs).
For engineers reviewing the VTVS9V4ASMF-M3-08 datasheet, VTVS9V4ASMF-M3-08 pinout, VTVS9V4ASMF-M3-08 application, or VTVS9V4ASMF-M3-08 equivalent, key selection criteria include its ±5 % VBR tolerance, 1130 pF junction capacitance at 0 V, IEC 61000-4-2 ±30 kV contact/air discharge rating, and AEC-Q101 qualification option - critical for automotive and industrial interface protection.
Technical Context
This TVS diode operates as a unidirectional clamping device with avalanche breakdown behavior, optimized for fast response (<1 ns) to ESD transients and longer-duration surges (10/1000 μs). Its low-clamping voltage (VC = 14.9 V) and high peak pulse power (400 W) enable robust protection of 9–12 V signal rails without compromising signal integrity.
The SMF package (DO-219AB) supports wave and reflow soldering, with MSL level 1 moisture sensitivity and halogen-free molding compound. Thermal resistance from junction to lead is 20 K/W, enabling reliable operation up to TJ = +175 °C in compact PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W (10/1000 μs waveform; sustains surge energy without failure) |
| Stand-off Voltage (VRWM) | 9.4 V (maximum continuous reverse voltage before leakage exceeds 0.1 μA) |
| Breakdown Voltage (VBR) | 10.5–11.6 V at IT = 1 mA (±5 % tolerance ensures predictable turn-on threshold) |
| Clamping Voltage (VC) | ≤14.9 V at IPPM = 25.48 A (limits protected circuit voltage during worst-case surge) |
| Junction Capacitance (CD) | 1130 pF at VR = 0 V, f = 1 MHz (measured value impacts high-speed signal rise time) |
| ESD Rating | ±30 kV contact / ±30 kV air per IEC 61000-4-2 (full compliance for end-equipment certification) |
| Operating Temperature | −55 °C to +175 °C (supports under-hood automotive and industrial environments) |
Pinout & Package
SMF (DO-219AB) package: low-profile surface-mount outline with cathode marking bar; compatible with SOD-123W footprint and reflow profiles up to 260 °C peak.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/protected line connection | Connected to signal or power line requiring transient suppression |
| Cathode | Ground reference terminal | Connected to system ground or low-impedance return path for clamping current |
Key Features
| Feature | Design Value |
|---|---|
| "Low-Noise" fast-response technology | Sub-nanosecond response enables protection of high-speed digital interfaces without signal distortion |
| AEC-Q101 qualification available | Validated reliability for automotive electronics including body control modules and ADAS sensors |
| Halogen-free and RoHS-compliant | Meets environmental compliance requirements for global OEM supply chains |
| Wave and reflow solderable | Compatible with standard SMT assembly processes without special handling or pre-baking |
| Unidirectional polarity | Optimized for DC-biased lines where reverse conduction must be blocked during normal operation |
Applications
| Automotive Sensor Interface | HDMI/DisplayPort ESD Protection |
|---|---|
|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., temperature, pressure) in engine control units against load dump and ESD. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between sensor output and MCU input pin. Use Value: Clamps transients to ≤14.9 V while maintaining 9.4 V stand-off, preserving signal fidelity in 5–12 V systems. |
Use Scenario: Safeguarding HDMI 2.0 differential pairs from human-body-model ESD events during hot-plug insertion. IC Role / Device Role / Timing Role: Low-capacitance TVS on each TMDS channel, grounded via shortest possible trace. Use Value: 1130 pF capacitance minimizes signal degradation; ±30 kV ESD rating meets IEC 61000-4-2 compliance for consumer displays. |
| USB 2.0 Data Line Protection | Industrial CAN Bus Node |
|
Use Scenario: Shielding D+ and D− lines in embedded USB peripherals from electrostatic discharge during field servicing. IC Role / Device Role / Timing Role: Bidirectionally protected pair using two unidirectional devices (anode-to-ground configuration). Use Value: 14.9 V clamping prevents damage to 3.3 V USB transceivers; low leakage (<0.1 μA) avoids bus pull-down issues. |
Use Scenario: Adding secondary surge immunity to CANH/CANL nodes in factory automation controllers exposed to inductive switching noise. IC Role / Device Role / Timing Role: TVS placed across CANH–CANL differential pair and to chassis ground. Use Value: 400 W peak power rating absorbs repetitive 10/1000 μs surges common in motor drive environments. |
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 | Higher VRWM (9.0 V), lower VC (13.1 V), same 400 W rating but SMA package (larger footprint) | Less suitable for space-constrained designs; higher thermal resistance (RthJL = 40 K/W) | Select when board layout allows larger SMC/SMA footprint and lower clamping voltage is prioritized over size. |
| TPSMF9.0A | Same SMF package, 9.0 V VRWM, 13.1 V VC, but only ±10 % VBR tolerance and no AEC-Q101 option | Lacks automotive qualification and tighter VBR control; lower ESD rating (±25 kV) | Choose for cost-sensitive industrial applications where AEC-Q101 and ±30 kV ESD are not required. |
Compared with SMAJ9.0A and TPSMF9.0A, VTVS9V4ASMF-M3-08 delivers tighter ±5 % VBR tolerance, full ±30 kV IEC 61000-4-2 compliance, and optional AEC-Q101 qualification - making it preferred for automotive and high-reliability industrial interfaces where precision clamping and certification readiness are essential.
Availability
VTVS9V4ASMF-M3-08 is available at Aetrix Electronics and suitable for automotive sensor interfaces, HDMI/USB ESD protection, and industrial CAN bus nodes requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for VTVS9V4ASMF-M3-08 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 high-density, high-surge-protection applications with low-profile SMF packaging and AEC-Q101 qualification - engineered specifically for next-generation automotive ECUs and ruggedized industrial interfaces.
FAQ
What is the maximum clamping voltage of the VTVS9V4ASMF-M3-08 under peak surge conditions?
The VTVS9V4ASMF-M3-08 has a maximum reverse clamping voltage (VC) of 14.9 V when subjected to its rated peak pulse current of 25.48 A (10/1000 μs waveform). This value is guaranteed across temperature and lifetime, ensuring consistent protection margin for 9.4 V nominal circuits. The VTVS9V4ASMF-M3-08 achieves this while maintaining low leakage and fast response.
Is the VTVS9V4ASMF-M3-08 qualified for automotive use?
The VTVS9V4ASMF-M3-08 is offered in an AEC-Q101 qualified version (denoted by suffix "-HM3-08" or "-HM3-18"), though the base part number VTVS9V4ASMF-M3-08 itself is RoHS-compliant and halogen-free with identical electrical specs. Engineers selecting for automotive applications should specify the HM3 variant to ensure full qualification documentation and process controls. The VTVS9V4ASMF-M3-08 datasheet confirms compatibility with AEC-Q101 test requirements.
What is the junction capacitance of the VTVS9V4ASMF-M3-08 and how does it affect high-speed signals?
The VTVS9V4ASMF-M3-08 exhibits a typical junction capacitance (CD) of 1130 pF at VR = 0 V and f = 1 MHz. This value directly impacts signal integrity on high-speed lines: for example, on a 480 Mbps USB 2.0 channel, it contributes measurable rise-time degradation if placed directly on differential pairs. Best practice is to use one VTVS9V4ASMF-M3-08 per line with minimized trace length to ground.
Can the VTVS9V4ASMF-M3-08 replace older SMAJ9.0A devices in existing designs?
The VTVS9V4ASMF-M3-08 is not a direct pin-to-pin replacement for SMAJ9.0A due to different packages (SMF vs. SMA) and slightly higher VRWM (9.4 V vs. 9.0 V). While both offer 400 W surge capability, the VTVS9V4ASMF-M3-08 requires PCB footprint revision and offers tighter VBR tolerance and superior ESD rating. Migration to VTVS9V4ASMF-M3-08 is feasible but requires layout validation and clamping margin review.
What is the thermal resistance and maximum junction temperature specification for the VTVS9V4ASMF-M3-08?
The VTVS9V4ASMF-M3-08 has a thermal resistance from junction to lead (RthJL) of 20 K/W when mounted on an infinite heat sink, and a maximum junction temperature (TJ) rating of +175 °C. This allows sustained operation in under-hood automotive environments and industrial enclosures without derating, provided PCB copper area and grounding meet Vishay's recommended footprint (1.3 mm × 1.3 mm pad per terminal).
VTVS9V4ASMF-M3-08 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):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.9V
- Current - Peak Pulse (10/1000µs):
- 25.48A
- 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)
VTVS9V4ASMF-M3-08 FAQ
1.How can I place an order for VTVS9V4ASMF-M3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS9V4ASMF-M3-08 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 VTVS9V4ASMF-M3-08 reliable?
The price and inventory of VTVS9V4ASMF-M3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VTVS9V4ASMF-M3-08 is usually 5 days.
3.What payment methods are accepted for VTVS9V4ASMF-M3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS9V4ASMF-M3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS9V4ASMF-M3-08?
VTVS9V4ASMF-M3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS9V4ASMF-M3-08 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 VTVS9V4ASMF-M3-08?
For technical support, including VTVS9V4ASMF-M3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS9V4ASMF-M3-08 requirements.
6.How does Aetrix verify that VTVS9V4ASMF-M3-08 is sourced from the original manufacturer or authorized distributors?
All VTVS9V4ASMF-M3-08 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 VTVS9V4ASMF-M3-08 meets industry standards.
7.What is the process for return or replacement of VTVS9V4ASMF-M3-08?
All VTVS9V4ASMF-M3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS9V4ASMF-M3-08, 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 VTVS9V4ASMF-M3-08 part is unused and in its original packaging.
Return procedure for VTVS9V4ASMF-M3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS9V4ASMF-M3-08 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 …
