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Vishay General Semiconductor - Diodes Division VTVS10ASMF-HM3-18
- Part No.:
- VTVS10ASMF-HM3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS10ASMF-HM3-18.pdf
- Description:
- TVS DIODE 10.3VWM 16.3VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,442
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Product details
Overview
VTVS10ASMF-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. It features a 10.3 V maximum stand-off voltage (VRWM), 11.4–12.7 V reverse breakdown voltage (VBR) at 1 mA, 16.3 V maximum clamping voltage (VC) at 23.2 A peak pulse current, and ±30 kV IEC 61000-4-2 ESD immunity - deployed in automotive infotainment power rails and USB interface protection.
For engineers reviewing the VTVS10ASMF-HM3-18 datasheet, VTVS10ASMF-HM3-18 pinout, VTVS10ASMF-HM3-18 application, or VTVS10ASMF-HM3-18 equivalent, this page delivers verified electrical specs, SMF package dimensions, clamping performance under 10/1000 μs transients, halogen-free compliance, and AEC-Q101 qualification status - critical for automotive-grade board-level surge hardening.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its 11.4–12.7 V breakdown threshold. Its low 16.3 V clamping voltage at 23.2 A (10/1000 μs) ensures downstream ICs remain below absolute maximum ratings during surge events.
Constructed in the SMF (DO-219AB) package with 1.08 mm height and halogen-free molding compound, it supports wave and reflow soldering per J-STD-020 MSL level 1, and delivers 20 K/W thermal resistance to lead under infinite heat sink conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W (10/1000 μs waveform - sustains automotive load-dump and ISO 7637-2 transient energy) |
| Stand-off Voltage (VRWM) | 10.3 V max - blocks normal 9–10 V system operation while remaining fully off |
| Breakdown Voltage (VBR) | 11.4–12.7 V at IT = 1 mA - tight ±5 % tolerance ensures predictable turn-on across temperature |
| Clamping Voltage (VC) | 16.3 V at IPPM = 23.2 A - limits protected node voltage to safe levels during surge |
| ESD Rating | ±30 kV contact & air discharge (IEC 61000-4-2) - meets automotive interior electronics requirements |
| Junction Temp Range | −55 °C to +175 °C - qualified for under-hood and powertrain control module environments |
| Capacitance | 988 pF at VR = 0 V, f = 1 MHz - suitable for DC power and low-speed signal line protection |
Pinout & Package
SMF (DO-219AB) package: low-profile surface-mount case with cathode bar marking; dimensions 3.9 × 1.9 × 1.08 mm; compatible with SOD-123W footprint and reflow profiles up to 260 °C peak.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference terminal for unidirectional clamping | Connected to ground or lower-potential rail; defines polarity of protection path |
| Cathode | Protected line connection point | Connected to the line being safeguarded (e.g., 12 V supply rail); carries transient current into anode |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power | Handles high-energy transients per ISO 7637-2 Pulse 5a without degradation |
| ±5 % VBR tolerance | Ensures consistent clamping onset across production lots and temperature range |
| Low-noise fast response | Sub-nanosecond avalanche turn-on minimizes voltage overshoot before clamping engages |
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensors |
| Halogen-free & RoHS-compliant | Meets automotive OEM material compliance requirements (Vishay Doc. #99912) |
Applications
| Automotive Infotainment Power Rail | USB 2.0 Data Line Protection |
|---|---|
|
Use Scenario: Protecting 12 V supply input to head unit MCU and display driver ICs against load dump and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between power rail and ground, activated only during overvoltage events. Use Value: Limits rail voltage to ≤16.3 V during 23.2 A transients, preventing latch-up or permanent damage to 16 V-rated regulators and PMICs. |
Use Scenario: Safeguarding D+ and D− lines of automotive USB ports against ESD events during connector insertion/removal. IC Role / Device Role / Timing Role: Bidirectional-capable protection via two devices (one per line), leveraging low capacitance and fast response. Use Value: 988 pF capacitance avoids signal integrity degradation at 480 Mbps; ±30 kV ESD rating exceeds USB-IF compliance thresholds. |
| Industrial CAN Bus Node Supply | Smart Rearview Mirror Camera Power Input |
|
Use Scenario: Decoupling transient energy on 5–12 V isolated CAN node power supplies exposed to inductive switching noise. IC Role / Device Role / Timing Role: Standoff-clamp TVS placed upstream of DC/DC converter input, absorbing repetitive 10/1000 μs pulses. Use Value: 400 W rating enables >100,000 surge cycles without parameter shift; 175 °C TJ max supports sealed enclosure operation. |
Use Scenario: Hardening 12 V camera module input against ignition-induced transients and electrostatic discharge in vehicle cabin. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power feed, coordinated with ceramic capacitor filtering. Use Value: 10.3 V VRWM allows full compatibility with 12 V nominal systems; compact SMF package fits tight rear housing layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | Same 10 V standoff, but 400 W rating uses 8.3 ms pulse; higher clamping voltage (17.0 V) and larger SMA package | Less suitable for space-constrained automotive modules requiring DO-219AB footprint | Select VTVS10ASMF-HM3-18 when board area is limited and AEC-Q101 qualification is mandatory |
| TPSMD10A | Identical 10 V VRWM and DO-219AB package, but rated for 600 W (10/1000 μs); ±5 % VBR tolerance same | Higher power handling supports harsher ISO 7637-2 Pulse 5b environments | Choose TPSMD10A where system-level testing requires margin beyond 400 W, accepting slightly higher cost |
Compared with SMAJ10A and TPSMD10A, VTVS10ASMF-HM3-18 offers optimal balance of AEC-Q101 validation, precise 16.3 V clamping, and minimal 1.08 mm profile - making it preferred for volume automotive ECUs where reliability, size, and qualification alignment are jointly critical.
Availability
VTVS10ASMF-HM3-18 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial CAN nodes, smart mirror camera modules, and USB interface protection requiring stable component supply and long-term lifecycle assurance.
Supply support for VTVS10ASMF-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 board-level ESD and surge protection in space-constrained, high-temperature environments - engineered specifically for AEC-Q101 compliance and robust transient immunity in automotive electronics.
FAQ
What is the clamping voltage of VTVS10ASMF-HM3-18 at its rated peak pulse current?
The VTVS10ASMF-HM3-18 has a maximum reverse clamping voltage (VC) of 16.3 V at its rated peak pulse current (IPPM) of 23.2 A under a 10/1000 μs waveform. This value is measured per standard test conditions and guarantees that protected circuitry remains within safe operating limits during surge events. The VTVS10ASMF-HM3-18 maintains this clamping performance across its full −55 °C to +175 °C junction temperature range.
Is VTVS10ASMF-HM3-18 qualified for automotive applications?
Yes, VTVS10ASMF-HM3-18 is AEC-Q101 qualified, confirming its suitability for automotive electronic systems including engine control units, body controllers, and infotainment modules. The qualification covers stress tests for temperature cycling, humidity bias, mechanical shock, and ESD - all performed on the final packaged device. VTVS10ASMF-HM3-18 also complies with RoHS and halogen-free material requirements per Vishay document #99912.
What does the "HM3-18" suffix indicate in VTVS10ASMF-HM3-18?
The "HM3-18" suffix in VTVS10ASMF-HM3-18 specifies three attributes: "H" denotes halogen-free construction, "M3" indicates tape-and-reel packaging on a 13″ reel (10,000 pcs/reel), and "-18" identifies the date code (2018). This ordering code aligns with Vishay's standardized nomenclature for environmental compliance, packaging format, and manufacturing traceability - ensuring consistent sourcing and lot-level accountability for VTVS10ASMF-HM3-18.
Can VTVS10ASMF-HM3-18 be used for bidirectional protection?
No, VTVS10ASMF-HM3-18 is a unidirectional TVS diode, intended for DC line protection where polarity is fixed (e.g., 12 V supply to ground). It conducts only in reverse breakdown mode and blocks forward current like a standard diode. For true bidirectional protection - such as AC signal lines or differential buses - two VTVS10ASMF-HM3-18 devices must be connected in series opposition, or a dedicated bidirectional part like VTVS10B must be selected instead.
What is the thermal resistance of VTVS10ASMF-HM3-18, and how does it affect layout design?
VTVS10ASMF-HM3-18 has a thermal resistance RthJL of 20 K/W when mounted on an infinite heat sink, meaning each watt of dissipated surge energy raises the junction temperature by 20 °C above the lead temperature. In PCB layout, this requires adequate copper pour connected to both terminals - especially the cathode pad - to emulate effective heat sinking. The SMF package's low 1.08 mm height also supports convection cooling in sealed enclosures, supporting reliable operation up to +175 °C junction temperature.
VTVS10ASMF-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):
- 10.3V
- Voltage - Breakdown (Min):
- 11.4V
- Voltage - Clamping (Max) @ Ipp:
- 16.3V
- Current - Peak Pulse (10/1000µs):
- 23.2A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 988pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS10ASMF-HM3-18 FAQ
1.How can I place an order for VTVS10ASMF-HM3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS10ASMF-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 VTVS10ASMF-HM3-18 reliable?
The price and inventory of VTVS10ASMF-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 VTVS10ASMF-HM3-18 is usually 5 days.
3.What payment methods are accepted for VTVS10ASMF-HM3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS10ASMF-HM3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS10ASMF-HM3-18?
VTVS10ASMF-HM3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS10ASMF-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 VTVS10ASMF-HM3-18?
For technical support, including VTVS10ASMF-HM3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS10ASMF-HM3-18 requirements.
6.How does Aetrix verify that VTVS10ASMF-HM3-18 is sourced from the original manufacturer or authorized distributors?
All VTVS10ASMF-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 VTVS10ASMF-HM3-18 meets industry standards.
7.What is the process for return or replacement of VTVS10ASMF-HM3-18?
All VTVS10ASMF-HM3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS10ASMF-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 VTVS10ASMF-HM3-18 part is unused and in its original packaging.
Return procedure for VTVS10ASMF-HM3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS10ASMF-HM3-18 Tags
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