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Vishay General Semiconductor - Diodes Division VTVS11ASMF-M3-08
- Part No.:
- VTVS11ASMF-M3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS11ASMF-M3-08.pdf
- Description:
- TVS DIODE 11.2VWM 18VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:48,124
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Product details
Overview
VTVS11ASMF-M3-08 from Vishay Semiconductors is a unidirectional 400 W TransZorb® transient voltage suppressor diode in SMF (DO-219AB) package, designed for board-level ESD and surge protection of low-voltage DC lines. It features a 11.2 V maximum stand-off voltage (VRWM), 12.6–13.9 V reverse breakdown voltage (VBR) at 1 mA, 18.0 V maximum clamping voltage (VC) at 21.13 A peak pulse current, and ±30 kV IEC 61000-4-2 ESD immunity - deployed in automotive infotainment power rails and industrial sensor interfaces.
For engineers reviewing the VTVS11ASMF-M3-08 datasheet, VTVS11ASMF-M3-08 pinout, VTVS11ASMF-M3-08 application, or VTVS11ASMF-M3-08 equivalent, key selection criteria include clamping voltage margin relative to protected IC VCC, VRWM derating for temperature drift, unidirectional polarity compatibility with DC bias schemes, and SOD-123W footprint compliance for high-density PCB layouts.
Technical Context
This TVS diode operates as a shunt-clamping device triggered by avalanche breakdown above VRWM, delivering fast response (<1 ns) via "Low-Noise" silicon technology. Its unidirectional configuration enables integration into positive-rail protection paths without forward conduction during normal operation.
Rated for 400 W peak pulse power (10/1000 μs waveform) and 175 °C junction temperature, it sustains repeated transients while maintaining <0.05 μA leakage at VRWM and 910 pF capacitance at 0 V - critical for preserving signal integrity on 10–50 MHz analog or digital lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W (10/1000 μs waveform): withstands automotive load-dump surges and industrial switching transients without degradation |
| Stand-off Voltage (VRWM) | 11.2 V max: ensures no conduction during nominal 12 V rail operation, allowing safe margin before clamping |
| Breakdown Voltage (VBR) | 12.6–13.9 V at 1 mA: defines precise avalanche onset threshold for repeatable clamping behavior |
| Clamping Voltage (VC) | 18.0 V at 21.13 A IPPM: limits downstream voltage stress to <1.6× VRWM, protecting 16 V-tolerant ICs |
| ESD Rating | ±30 kV contact / ±30 kV air (IEC 61000-4-2): meets Level 4 system-level ESD robustness for automotive ECUs |
| Junction Temperature | -55 to +175 °C: supports under-hood and industrial control cabinet deployments without thermal derating |
| Capacitance | 910 pF at 0 V, 1 MHz: compatible with low-speed data lines (e.g., LIN, CAN FD stubs, sensor analog outputs) |
Pinout & Package
SMF (DO-219AB) low-profile surface-mount package: 3.9 mm × 1.9 mm × 1.08 mm body, halogen-free molding compound, MSL level 1, wave/reflow solderable, compatible with SOD-123W footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node for unidirectional clamping | Connected to GND or low-side return path; establishes polarity-dependent avalanche trigger |
| Cathode | Protected line connection point | Connected to the 12 V rail or signal line being safeguarded; conducts surge current to ground when VC exceeded |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power | Enables single-device protection against ISO 7637-2 Pulse 1/2a/5a transients in 12 V automotive systems |
| ±5 % VBR tolerance (A-suffix) | Guarantees tight clamping window across production lots, reducing design margin uncertainty |
| "Low-Noise" fast response | Sub-nanosecond turn-on time prevents overshoot propagation to sensitive analog front-ends |
| AEC-Q101 qualified option | M3-08 packaging code denotes RoHS-compliant, lead-free, halogen-free construction meeting automotive reliability standards |
| SOD-123W footprint compatibility | Allows drop-in replacement of legacy SOD-123 devices without PCB redesign or stencil changes |
Applications
| Automotive Infotainment Power Rail | Industrial Sensor Signal Line |
|---|---|
|
Use Scenario: Protecting 12 V supply inputs to head unit MCUs and display drivers from load dump and alternator ripple. IC Role / Device Role / Timing Role: Shunt-clamping TVS diode placed between VBAT and GND, activated only during overvoltage events. Use Value: Limits transient voltage to ≤18.0 V, preventing latch-up or gate oxide damage in 16 V-rated power management ICs. |
Use Scenario: Safeguarding 4–20 mA current-loop sensor outputs against ESD coupling from nearby relay switching. IC Role / Device Role / Timing Role: Unidirectional clamp installed across output terminals, referenced to local signal ground. Use Value: Absorbs ±30 kV contact discharge without altering loop accuracy or introducing >910 pF loading on 1 kHz bandwidth signals. |
| Telecom Base Station DC Feeds | Medical Patient Monitoring Interface |
|
Use Scenario: Guarding -48 V telecom power distribution nodes against lightning-induced surges on outdoor feeder lines. IC Role / Device Role / Timing Role: Reverse-biased TVS connected cathode-to-rail, anode-to-ground to clamp negative-going transients. Use Value: Delivers 400 W pulse handling at -48 V system level, maintaining <0.05 μA leakage to avoid standby current drain. |
Use Scenario: Shielding analog ECG electrode inputs from electrostatic discharge during clinical handling. IC Role / Device Role / Timing Role: Low-capacitance TVS placed inline with differential amplifier inputs, grounded at common-mode reference. Use Value: 910 pF capacitance avoids phase shift in 0.05–150 Hz biopotential band; ±30 kV air discharge rating exceeds IEC 60601-1-2 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ11A | Same VRWM (11 V) and VC (18.2 V), but 400 W rating uses 8.3 ms waveform; higher 1.5 nA IR at VRWM | Larger SMA package (4.5 × 2.7 mm) requires PCB area increase; not AEC-Q101 qualified | Select for cost-sensitive industrial designs where footprint flexibility exists and automotive qualification is unnecessary |
| TPSMD11A | Identical VRWM (11.1 V) and VC (18.0 V); tighter ±3.5 % VBR tolerance; 1000 W rating (10/1000 μs) | DO-214AB package (7.1 × 6.2 mm) incompatible with SMF layout; higher capacitance (1200 pF) | Choose when higher surge margin is required and board space permits larger package; unsuitable for space-constrained automotive modules |
Compared with SMAJ11A and TPSMD11A, VTVS11ASMF-M3-08 uniquely balances compact DO-219AB footprint, AEC-Q101 readiness, and precise ±5 % VBR control - making it optimal for next-generation ADAS domain controllers and miniaturized industrial PLC I/O modules.
Availability
VTVS11ASMF-M3-08 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial sensor interfaces, telecom DC feeds, and medical patient monitoring equipment requiring stable component supply and long-term lifecycle support.
Supply support for VTVS11ASMF-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 delivers standardized TVS protection in ultra-low-profile packages optimized for automated assembly and high-density PCBs in harsh-environment applications.
FAQ
What is the clamping voltage of VTVS11ASMF-M3-08 at its rated peak pulse current?
The VTVS11ASMF-M3-08 has a maximum reverse clamping voltage (VC) of 18.0 V when subjected to its rated 21.13 A peak pulse current (10/1000 μs waveform). This value ensures protected circuits remain within safe operating limits during transient events, and is measured per JEDEC standards with specified test conditions.
Is VTVS11ASMF-M3-08 qualified to AEC-Q101 for automotive use?
VTVS11ASMF-M3-08 is offered in an AEC-Q101 qualified version - confirmed by Vishay's documentation and ordering code structure (M3-08 denotes RoHS-compliant, lead-free, halogen-free construction meeting automotive reliability requirements). Always verify qualification status using the specific part number's official Vishay datasheet revision.
What package type does VTVS11ASMF-M3-08 use, and is it compatible with standard SOD-123 footprints?
VTVS11ASMF-M3-08 uses the SMF (DO-219AB) package - a low-profile, halogen-free surface-mount case measuring 3.9 mm × 1.9 mm × 1.08 mm. It is explicitly stated as compatible with SOD-123W, SOD-123F, and SOD-123FL outlines, enabling mechanical and soldering compatibility with existing SOD-123-based layouts.
How does the ±5 % VBR tolerance of VTVS11ASMF-M3-08 impact circuit protection design?
The ±5 % breakdown voltage tolerance (denoted by the "A" suffix in VTVS11ASMF-M3-08) guarantees that VBR falls between 12.6 V and 13.9 V at 1 mA. This tight specification allows designers to set precise clamping margins relative to downstream IC absolute maximum ratings, minimizing overdesign while ensuring reliable activation before damage occurs.
Can VTVS11ASMF-M3-08 be used for bidirectional signal line protection?
No - VTVS11ASMF-M3-08 is a unidirectional TVS diode, intended for DC power rail or single-polarity signal protection. For bidirectional applications (e.g., USB data lines, RS-485), a symmetrical device such as VTVS11BSMF-M3-08 would be required. Using VTVS11ASMF-M3-08 on AC-coupled or floating lines risks forward conduction or inadequate clamping.
VTVS11ASMF-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):
- 11.2V
- Voltage - Breakdown (Min):
- 12.6V
- Voltage - Clamping (Max) @ Ipp:
- 18V
- Current - Peak Pulse (10/1000µs):
- 21.13A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 910pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS11ASMF-M3-08 FAQ
1.How can I place an order for VTVS11ASMF-M3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS11ASMF-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 VTVS11ASMF-M3-08 reliable?
The price and inventory of VTVS11ASMF-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 VTVS11ASMF-M3-08 is usually 5 days.
3.What payment methods are accepted for VTVS11ASMF-M3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS11ASMF-M3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS11ASMF-M3-08?
VTVS11ASMF-M3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS11ASMF-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 VTVS11ASMF-M3-08?
For technical support, including VTVS11ASMF-M3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS11ASMF-M3-08 requirements.
6.How does Aetrix verify that VTVS11ASMF-M3-08 is sourced from the original manufacturer or authorized distributors?
All VTVS11ASMF-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 VTVS11ASMF-M3-08 meets industry standards.
7.What is the process for return or replacement of VTVS11ASMF-M3-08?
All VTVS11ASMF-M3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS11ASMF-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 VTVS11ASMF-M3-08 part is unused and in its original packaging.
Return procedure for VTVS11ASMF-M3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS11ASMF-M3-08 Tags
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