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Vishay General Semiconductor - Diodes Division VTVS15ASMF-HM3-18
- Part No.:
- VTVS15ASMF-HM3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS15ASMF-HM3-18.pdf
- Description:
- TVS DIODE 15.1VWM 25VC DO219AB
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
VTVS15ASMF-HM3-18 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 such as USB, HDMI, and automotive sensor interfaces. It features a 15.1 V maximum stand-off voltage (VRWM), 17.1–18.8 V reverse breakdown voltage (VBR) at 1 mA, 25 V clamping voltage (VC) at 15.47 A peak pulse current, and ±30 kV IEC 61000-4-2 ESD immunity.
For engineers reviewing the VTVS15ASMF-HM3-18 datasheet, VTVS15ASMF-HM3-18 pinout, VTVS15ASMF-HM3-18 application, or VTVS15ASMF-HM3-18 equivalent, key selection criteria include clamping performance under 10/1000 μs surge, low capacitance (684 pF) for high-speed signal integrity, halogen-free and AEC-Q101-qualified variants, and compatibility with SOD-123W footprint constraints.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its specified VBR range (17.1–18.8 V). Its low thermal resistance (20 K/W to lead) enables reliable power dissipation of 400 W peak pulses without thermal runaway under transient stress.
The device delivers fast response time via "Low-Noise" technology and maintains stable clamping up to TJ = +175 °C, supporting operation in automotive engine compartments and industrial control environments where ambient temperatures exceed 125 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W (10/1000 μs waveform; sustains repeated surges without degradation) |
| Stand-off Voltage (VRWM) | 15.1 V (maximum continuous reverse voltage before leakage exceeds 0.05 μA) |
| Breakdown Voltage (VBR) | 17.1–18.8 V at IT = 1 mA (tight ±5 % tolerance ensures predictable turn-on threshold) |
| Clamping Voltage (VC) | 25 V at IPPM = 15.47 A (limits downstream IC voltage stress during surge events) |
| Capacitance (CD) | 684 pF at VR = 0 V, f = 1 MHz (enables use on ≤100 Mbps data lines with minimal signal distortion) |
| ESD Rating | ±30 kV contact / ±30 kV air per IEC 61000-4-2 (meets Level 4 system-level ESD robustness) |
| Operating Temperature | −55 °C to +175 °C (supports under-hood automotive and industrial motor drive applications) |
Pinout & Package
Package: SMF (DO-219AB), low-profile surface-mount case compatible with SOD-123W footprint; dimensions: 3.9 mm × 1.9 mm × 1.08 mm; cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward conduction | Connected to protected line's low-side reference (e.g., GND or return path); defines unidirectional polarity |
| Cathode | Current exit during reverse avalanche clamping | Connected to protected line (e.g., USB D+, HDMI TMDS+); absorbs surge energy into ground path |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power | Handles IEC 61000-4-5 Level 3 (1 kV, 2 Ω source) surges without failure |
| ±5 % VBR tolerance | Ensures consistent clamping onset across production lots for predictable system-level protection |
| Halogen-free & RoHS-compliant | Meets automotive ELV and industrial environmental compliance requirements (J-STD-020 MSL level 1) |
| Wave and reflow solderable | Compatible with standard PCB assembly processes up to 260 °C peak temperature |
| AEC-Q101 qualified option | VTVS15ASMF-HM3-18 includes AEC-Q101 qualification (per ordering code suffix 'H') |
Applications
| Automotive Sensor Interface | USB 2.0 Data Line Protection |
|---|---|
|
Use Scenario: Protecting LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) in engine control units exposed to load dump and ISO 7637-2 transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between sensor signal line and chassis ground to shunt surge energy before it reaches the ASIC input. Use Value: Clamps 25 V at 15.47 A, limiting voltage seen by 5 V tolerant ADC inputs to safe levels while maintaining <1 μA leakage at 15.1 V operating bias. |
Use Scenario: Safeguarding USB 2.0 D+ and D− lines against ESD events during hot-plug insertion in infotainment head units and telematics modules. IC Role / Device Role / Timing Role: Bidirectional protection not required; unidirectional VTVS15ASMF-HM3-18 used per line with cathode to signal, anode to ground to preserve signal integrity. Use Value: 684 pF capacitance avoids USB 2.0 eye diagram distortion; ±30 kV contact discharge rating exceeds IEC 61000-4-2 requirement for consumer-facing ports. |
| HDMI TMDS Channel Protection | Industrial CAN FD Node Protection |
|
Use Scenario: Shielding HDMI 1.4/2.0 TMDS differential pairs from ESD in digital signage and medical display systems. IC Role / Device Role / Timing Role: One VTVS15ASMF-HM3-18 per TMDS+ and TMDS− line, cathode to signal, anode to ground-leveraging unidirectional behavior for asymmetric voltage swing. Use Value: Low 25 V clamping prevents damage to 3.3 V HDMI receiver inputs; 1.08 mm height fits tight board stack-ups behind edge connectors. |
Use Scenario: Adding secondary surge suppression on CAN FD physical layer nodes in factory automation controllers subjected to long cable runs and inductive switching noise. IC Role / Device Role / Timing Role: Placed between CANH/CANL and ground after primary common-mode choke, acting as last-line overvoltage clamp. Use Value: 175 °C max junction temperature supports operation near power converters; 400 W rating handles repetitive 10/1000 μs transients induced by nearby motor drives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15A | Higher clamping voltage (24.4 V vs. 25 V), same VRWM (15 V), but SMB package (DO-214AA) is 4.6 mm wide vs. SMF's 1.9 mm | Less suitable for space-constrained USB/HDMI layouts; better for higher-power industrial rails | Select when board area allows larger footprint and higher thermal mass is needed for >1000-pulse endurance |
| TPSMF15A | Same SMF package and 15 V VRWM, but lower PPPM (200 W), higher VC (27.7 V), and no AEC-Q101 option | Limited to consumer-grade applications; insufficient for automotive ESD/surge compliance | Choose only for cost-sensitive non-automotive designs where 400 W surge margin is not required |
Compared with SMBJ15A and TPSMF15A, VTVS15ASMF-HM3-18 uniquely combines AEC-Q101 qualification, 400 W capability in ultra-low-profile SMF packaging, and guaranteed ±5 % VBR tolerance-making it the preferred choice for automotive and high-reliability industrial signal-line protection where board space, thermal performance, and qualification rigor are jointly critical.
Availability
VTVS15ASMF-HM3-18 is available at Aetrix Electronics and suitable for automotive sensor interfaces, USB 2.0 data line protection, HDMI TMDS channel safeguarding, and industrial CAN FD node hardening requiring stable component supply across extended product lifecycles.
Supply support for VTVS15ASMF-HM3-18 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 high-speed signal-line protection with optimized capacitance, clamping, and package miniaturization-designed specifically for ESD and surge resilience in next-generation automotive infotainment, ADAS sensor hubs, and industrial IoT edge nodes.
FAQ
What is the maximum clamping voltage of the VTVS15ASMF-HM3-18 under a 10/1000 μs surge?
The VTVS15ASMF-HM3-18 has a maximum reverse clamping voltage (VC) of 25 V at a peak pulse current (IPPM) of 15.47 A with a 10/1000 μs waveform. This value is measured per the absolute maximum ratings table and ensures downstream 3.3 V or 5 V ICs remain within safe operating limits during surge events. The VTVS15ASMF-HM3-18 achieves this clamping performance while maintaining low leakage (<0.05 μA) at its 15.1 V stand-off voltage.
Is the VTVS15ASMF-HM3-18 AEC-Q101 qualified?
Yes, the 'H' in the ordering code VTVS15ASMF-HM3-18 explicitly denotes AEC-Q101 qualification per Vishay's documentation. This qualification covers stress testing for temperature cycling, humidity bias, mechanical shock, and ESD-validating the VTVS15ASMF-HM3-18 for automotive powertrain, body electronics, and ADAS applications where reliability under harsh conditions is mandatory.
What is the package type and footprint compatibility of the VTVS15ASMF-HM3-18?
The VTVS15ASMF-HM3-18 uses the SMF (DO-219AB) package: 3.9 mm × 1.9 mm × 1.08 mm, with cathode marked by a bar. It is compatible with SOD-123W, SOD-123F, and SOD-123FL footprints per Vishay's package data. This allows drop-in replacement in existing layouts designed for those outlines, provided thermal pad clearance and solder mask definition match the SMF land pattern.
Does the VTVS15ASMF-HM3-18 meet IEC 61000-4-2 ESD requirements?
Yes, the VTVS15ASMF-HM3-18 provides ±30 kV contact discharge and ±30 kV air discharge protection per IEC 61000-4-2, exceeding Level 4 system-level ESD immunity. This performance is achieved using Vishay's "Low-Noise" avalanche technology, enabling sub-nanosecond response to protect sensitive USB, HDMI, and automotive serial interface ICs without signal degradation.
What is the typical junction-to-lead thermal resistance (RthJL) of the VTVS15ASMF-HM3-18?
The VTVS15ASMF-HM3-18 has a thermal resistance of RthJL = 20 K/W when mounted on an infinite heat sink, as specified in the Absolute Maximum Ratings table. This low value enables efficient heat transfer from the silicon die to the PCB copper through the leads, supporting reliable 400 W peak pulse power dissipation even in thermally constrained automotive and industrial environments.
VTVS15ASMF-HM3-18 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:
- -
- Capacitance @ Frequency:
- 684pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS15ASMF-HM3-18 FAQ
1.How can I place an order for VTVS15ASMF-HM3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS15ASMF-HM3-18 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-HM3-18 reliable?
The price and inventory of VTVS15ASMF-HM3-18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VTVS15ASMF-HM3-18 is usually 5 days.
3.What payment methods are accepted for VTVS15ASMF-HM3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS15ASMF-HM3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS15ASMF-HM3-18?
VTVS15ASMF-HM3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS15ASMF-HM3-18 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-HM3-18?
For technical support, including VTVS15ASMF-HM3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS15ASMF-HM3-18 requirements.
6.How does Aetrix verify that VTVS15ASMF-HM3-18 is sourced from the original manufacturer or authorized distributors?
All VTVS15ASMF-HM3-18 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-HM3-18 meets industry standards.
7.What is the process for return or replacement of VTVS15ASMF-HM3-18?
All VTVS15ASMF-HM3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS15ASMF-HM3-18, 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-HM3-18 part is unused and in its original packaging.
Return procedure for VTVS15ASMF-HM3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS15ASMF-HM3-18 Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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