My Inquiry
My Account
Vishay General Semiconductor - Diodes Division VTVS5V0ASMF-HM3-18
- Part No.:
- VTVS5V0ASMF-HM3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS5V0ASMF-HM3-18.pdf
- Description:
- TVS DIODE 5VWM 8.9VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,398
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
VTVS5V0ASMF-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 on low-voltage DC lines such as USB, HDMI, and automotive sensor interfaces. It features 5.0 V stand-off voltage (VRWM), 6.4–7.0 V reverse breakdown voltage (VBR) at 1 mA, 8.9 V maximum clamping voltage (VC) at 42.95 A peak pulse current, and ±30 kV IEC 61000-4-2 ESD immunity.
For engineers reviewing the VTVS5V0ASMF-HM3-18 datasheet, VTVS5V0ASMF-HM3-18 pinout, VTVS5V0ASMF-HM3-18 application, or VTVS5V0ASMF-HM3-18 equivalent, this device is selected for robust overvoltage protection in space-constrained, high-reliability PCBs where low clamping voltage, fast response, and AEC-Q101 qualification are critical.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its 6.4–7.0 V breakdown threshold. Its low 8.9 V clamping voltage at 42.95 A (10/1000 μs) ensures downstream ICs remain within safe operating limits during transients.
The SMF package (DO-219AB) supports wave and reflow soldering with MSL level 1 rating and peak temperature tolerance up to 260 °C. Its halogen-free molding compound and 1.08 mm height enable use in ultra-thin consumer and automotive modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 5.0 V - Maximum continuous reverse working voltage before conduction begins; sets protection threshold for 5 V logic rails. |
| Breakdown Voltage (VBR) | 6.4–7.0 V at 1 mA - Tight ±5 % tolerance ensures predictable turn-on across production lots. |
| Clamping Voltage (VC) | 8.9 V at 42.95 A (10/1000 μs) - Limits voltage seen by protected ICs during surge events. |
| Peak Pulse Power (PPP) | 400 W - Sustains high-energy transients without failure under standard 10/1000 μs waveform. |
| ESD Rating | ±30 kV contact / ±30 kV air (IEC 61000-4-2) - Meets highest industrial and automotive ESD immunity requirements. |
| Junction Temperature Range | −55 °C to +175 °C - Enables deployment in under-hood automotive and industrial environments. |
| Capacitance (CD) | 2095 pF at 0 V, 1 MHz - Low enough for USB 2.0 signal integrity but not suitable for high-speed differential interfaces >100 Mbps. |
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.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference terminal | Connected to system ground; forms return path for clamped surge current. |
| Cathode | Protected line input | Connected to signal/power line being protected; reverse-biased during normal operation. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power | Withstands high-energy surges (e.g., ISO 7637-2 pulse 1/2a) without degradation in automotive ECUs. |
| "Low-Noise" fast response | Nanosecond-level turn-on time minimizes voltage overshoot during ESD events, protecting sensitive analog inputs. |
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensors. |
| Halogen-free & RoHS-compliant | Meets automotive and industrial environmental compliance mandates without compromising thermal performance. |
| Wave/reflow solderable | Compatible with standard SMT assembly processes, including lead-free reflow profiles up to 260 °C peak. |
Applications
| USB 2.0 Port Protection | Automotive Sensor Interface |
|---|---|
|
Use Scenario: Protecting D+ and D− lines of USB 2.0 ports against ESD and cable discharge events. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between data line and ground, activated only during overvoltage. Use Value: 8.9 V clamping ensures USB transceivers stay below absolute maximum ratings; 2095 pF capacitance maintains signal integrity at 480 Mbps. |
Use Scenario: Safeguarding LIN bus or analog sensor outputs (e.g., pressure, temperature) in engine compartments. IC Role / Device Role / Timing Role: Standoff-rated protector on signal line, absorbing load dump and ESD pulses without forward conduction. Use Value: −55 °C to +175 °C operation and AEC-Q101 qualification ensure reliability in harsh under-hood conditions. |
| Industrial HMI Keypad | Smart Meter Communication Port |
|
Use Scenario: Shielding tactile keypad traces from user-induced ESD in factory HMIs and control panels. IC Role / Device Role / Timing Role: Localized transient suppressor mounted directly at connector entry point. Use Value: ±30 kV contact discharge rating prevents latch-up or damage to microcontroller GPIOs during field maintenance. |
Use Scenario: Protecting RS-485 or PLC communication lines in smart electricity meters exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary surge clamp on differential pair, coordinated with common-mode chokes. Use Value: 400 W peak power rating handles multi-kA induced surges per IEC 61000-4-5 Level 3 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 |
|---|---|---|---|
| SMAJ5.0A | Same 5.0 V VRWM, but 400 W rating uses 8.3 ms pulse; higher VC = 9.2 V at 43.3 A. | Less stringent clamping margin for 3.3 V/5 V logic; lower ESD rating (±15 kV). | Select when cost sensitivity outweighs need for lowest clamping voltage or highest ESD immunity. |
| TPSMD5.0A | Identical VRWM and VBR range, but 600 W rating; VC = 9.5 V at 63.2 A; larger SMA package (4.5 × 2.7 mm). | Higher surge capacity suits industrial power supply inputs; incompatible with ultra-thin layouts. | Select when higher energy handling is required and board space allows SMA footprint. |
Compared with SMAJ5.0A and TPSMD5.0A, VTVS5V0ASMF-HM3-18 delivers tighter clamping (8.9 V), superior ESD robustness (±30 kV), and a 30 % smaller footprint-making it optimal for compact, high-immunity designs where layout area and protection margin are critical.
Availability
VTVS5V0ASMF-HM3-18 is available at Aetrix Electronics and suitable for USB interface protection, automotive sensor circuits, and industrial HMI systems requiring stable component supply and long-term lifecycle support.
Supply support for VTVS5V0ASMF-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, and passive components for automotive, industrial, and computing markets.
The VTVS eSMP® Series targets space-constrained, high-surge environments-designed specifically for AEC-Q101-compliant transient suppression in next-generation automotive ECUs and ruggedized IoT endpoints.
FAQ
What is the clamping voltage of VTVS5V0ASMF-HM3-18 under a 10/1000 μs surge?
The VTVS5V0ASMF-HM3-18 has a maximum reverse clamping voltage (VC) of 8.9 V at 42.95 A peak pulse current using the standardized 10/1000 μs waveform. This value is measured per the Absolute Maximum Ratings table and guarantees that protected circuitry will not experience voltages exceeding 8.9 V during such transients, preserving the integrity of 5 V logic interfaces.
Is VTVS5V0ASMF-HM3-18 AEC-Q101 qualified?
Yes, VTVS5V0ASMF-HM3-18 is AEC-Q101 qualified. The "H" in the part number denotes AEC-Q101 qualification, confirmed in the Ordering Information section of Vishay document 85891. This certification validates its reliability for automotive applications including engine control units, body electronics, and ADAS sensor nodes.
What does the "HM3-18" suffix indicate in VTVS5V0ASMF-HM3-18?
The "HM3-18" suffix encodes three attributes: "H" = AEC-Q101 qualified, "M3" = halogen-free and RoHS-compliant terminations with tin plating, and "-18" = 10K per 13″ reel packaging (8 mm tape). This matches the ordering code structure defined in the Vishay datasheet revision 2.2 for the VTVS eSMP® Series.
Can VTVS5V0ASMF-HM3-18 be used for bidirectional protection?
No, VTVS5V0ASMF-HM3-18 is a unidirectional TVS diode, as explicitly stated in the PRIMARY CHARACTERISTICS table. It protects only against reverse-polarity transients on positive-rail lines. For bidirectional protection (e.g., AC lines or data pairs), a dedicated bidirectional variant like VTVS5V0BSMF must be selected instead.
What is the thermal resistance of VTVS5V0ASMF-HM3-18?
The thermal resistance (RthJL) of VTVS5V0ASMF-HM3-18 is 20 K/W when mounted on an infinite heat sink, per the Absolute Maximum Ratings table. This value informs thermal design margins-e.g., at 400 W peak power, junction-to-lead temperature rise would be ~800 K if sustained, confirming the device's rating applies only to short-duration pulses, not continuous dissipation.
VTVS5V0ASMF-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):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 8.9V
- Current - Peak Pulse (10/1000µs):
- 42.95A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 2095pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS5V0ASMF-HM3-18 FAQ
1.How can I place an order for VTVS5V0ASMF-HM3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS5V0ASMF-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 VTVS5V0ASMF-HM3-18 reliable?
The price and inventory of VTVS5V0ASMF-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 VTVS5V0ASMF-HM3-18 is usually 5 days.
3.What payment methods are accepted for VTVS5V0ASMF-HM3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS5V0ASMF-HM3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS5V0ASMF-HM3-18?
VTVS5V0ASMF-HM3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS5V0ASMF-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 VTVS5V0ASMF-HM3-18?
For technical support, including VTVS5V0ASMF-HM3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS5V0ASMF-HM3-18 requirements.
6.How does Aetrix verify that VTVS5V0ASMF-HM3-18 is sourced from the original manufacturer or authorized distributors?
All VTVS5V0ASMF-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 VTVS5V0ASMF-HM3-18 meets industry standards.
7.What is the process for return or replacement of VTVS5V0ASMF-HM3-18?
All VTVS5V0ASMF-HM3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS5V0ASMF-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 VTVS5V0ASMF-HM3-18 part is unused and in its original packaging.
Return procedure for VTVS5V0ASMF-HM3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS5V0ASMF-HM3-18 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 …
