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Vishay General Semiconductor - Diodes Division VTVS28GSMF-HM3-18
- Part No.:
- VTVS28GSMF-HM3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS28GSMF-HM3-18.pdf
- Description:
- TVS DIODE 27.9VWM 47VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,890
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Product details
Overview
VTVS28GSMF-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 27.9 V maximum stand-off voltage (VRWM), 32.39–33.72 V reverse breakdown voltage (VBR) at 1 mA, 47 A peak pulse current (IPPM), 47 V maximum clamping voltage (VC), and ±30 kV IEC 61000-4-2 ESD immunity - used in automotive infotainment power rails and USB-C port protection.
For engineers reviewing the VTVS28GSMF-HM3-18 datasheet, VTVS28GSMF-HM3-18 pinout, VTVS28GSMF-HM3-18 application, or VTVS28GSMF-HM3-18 equivalent, key selection criteria include its ±2 % VBR tolerance, halogen-free SMF package with MSL level 1 rating, 1.08 mm height constraint, and compatibility with wave/reflow soldering for high-reliability automotive PCBs.
Technical Context
This device operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its precisely specified 32.39–33.72 V breakdown range (±2 % tolerance). Its low 47 V clamping voltage at 47 A (10/1000 μs) ensures robust protection of downstream 24 V logic and interface ICs without overvoltage stress.
The SMF (DO-219AB) package delivers 20 K/W thermal resistance to leads and supports operation from –55 °C to +175 °C junction temperature. Its 1.9 mm width and 3.9 mm length enable compact placement near connectors or IC inputs while maintaining 400 W peak pulse power capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W (10/1000 μs waveform - sustains industrial surge events without failure) |
| Stand-off Voltage (VRWM) | 27.9 V (maximum continuous reverse voltage before conduction - matches 24 V system nominal rails) |
| Breakdown Voltage (VBR) | 32.39–33.72 V at 1 mA (±2 % tolerance - enables precise overvoltage threshold setting) |
| Clamping Voltage (VC) | 47 V at 47 A IPPM (limits transient voltage seen by protected IC - critical for 3.3/5 V logic survival) |
| ESD Rating | ±30 kV contact & air discharge (IEC 61000-4-2 - meets automotive and industrial ESD immunity requirements) |
| Junction Temperature Range | –55 °C to +175 °C (supports under-hood and engine-control module deployment) |
| Package | SMF (DO-219AB) - 3.9 × 1.9 × 1.08 mm, halogen-free, MSL level 1, reflow/wave solderable |
Pinout & Package
SMF (DO-219AB) package: surface-mount, low-profile (1.08 mm max height), cathode marked by bar on top surface. Compatible with SOD-123W footprint; lead-free, RoHS-compliant, halogen-free molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node - defines clamping reference point for protected line |
| Cathode | Protected line input | Connected to signal/power line requiring protection - conducts avalanche current during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % VBR tolerance | Enables tighter design margins vs. ±5 % variants - reduces risk of premature clamping in 24 V systems |
| 47 V clamping at 47 A | Provides 2.5× margin above 24 V rail - protects CAN transceivers, LIN drivers, and microcontroller I/O |
| 1.08 mm profile | Fits beneath low-clearance shields and connectors - essential for automotive body control modules |
| AEC-Q101 qualified option | VTVS28GSMF-HM3-18 includes AEC-Q101 qualification - validated for automotive-grade reliability and lifetime stress testing |
| MSL level 1 rating | Allows unlimited floor life and standard reflow without baking - simplifies SMT manufacturing flow |
Applications
| Automotive Body Control Module (BCM) Power Input | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: 24 V supply line feeding BCM microcontroller and sensor interfaces exposed to load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between 24 V rail and chassis ground - clamps transients within nanoseconds. Use Value: Limits voltage to ≤47 V during 47 A surges, preventing latch-up or damage to 5 V LDOs and CAN FD transceivers downstream. |
Use Scenario: 24 V digital input channel on modular PLC receiving signals from field sensors subject to induced lightning surges. IC Role / Device Role / Timing Role: Primary front-end surge protector - shunts energy before optocoupler or Schmitt-trigger input stage. Use Value: Withstands repeated 400 W pulses per IEC 61000-4-5 Level 3, extending field unit service life in harsh factory environments. |
| USB-C Port VBUS Line Protection | Automotive Infotainment Display Power Rail |
Use Scenario: VBUS line (up to 20 V) in automotive USB-C docking station subjected to hot-plug ESD and cable discharge events. IC Role / Device Role / Timing Role: Fast-response TVS placed inline with VBUS - activated within <1 ns to clamp ±30 kV ESD strikes. Use Value: 412 pF capacitance at 0 V ensures no signal integrity degradation on 10 Gbps USB 3.2 Gen 2x2 lanes. |
Use Scenario: 12 V–24 V backlight and display logic power rail in head-unit displays exposed to battery reversal and jump-start transients. IC Role / Device Role / Timing Role: Secondary overvoltage clamp after primary fuse and reverse-polarity MOSFET - final line-of-defense. Use Value: 175 °C max junction temperature allows operation behind thermally constrained LCD bezels without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VTVS28ASMF-HM3-18 | ±5 % VBR tolerance (31.4–34.7 V) vs. ±2 % (32.39–33.72 V); same VRWM, VC, and IPPM | Less precise threshold - suitable where 24 V rail variation permits wider clamping window | Select for cost-sensitive industrial designs where ±5 % tolerance meets system margin requirements |
| SMAJ28A-Q | Same VRWM (28 V) but higher VC (49.1 V at 43.5 A); SMA package (DO-214AC), larger footprint (4.5 × 2.7 mm) | Lower power density - requires more PCB area; not AEC-Q101 qualified by default | Choose when legacy SMA layout exists or when higher thermal mass is needed for repetitive surge duty cycles |
Compared with VTVS28ASMF-HM3-18 and SMAJ28A-Q, the VTVS28GSMF-HM3-18 delivers tighter voltage tolerance and smaller SMF footprint - optimizing space-constrained automotive PCBs while ensuring consistent clamping behavior across temperature and production lot.
Availability
VTVS28GSMF-HM3-18 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and USB-C power delivery systems requiring stable component supply, AEC-Q101 compliance, and long-term lifecycle support.
Supply support for VTVS28GSMF-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 TransZorb® eSMP® Series - including VTVS28GSMF-HM3-18 - is engineered specifically for board-level ESD and surge protection in space-constrained, high-temperature environments such as automotive ECUs and industrial controllers.
FAQ
What is the exact reverse breakdown voltage range for VTVS28GSMF-HM3-18?
The VTVS28GSMF-HM3-18 has a reverse breakdown voltage (VBR) range of 32.39 V to 33.72 V at 1 mA test current and 25 °C, with ±2 % tolerance confirmed in Vishay's official datasheet revision 2.2. This tight tolerance ensures predictable clamping onset in 24 V systems and is a key differentiator from the ±5 % A-series variants. The VTVS28GSMF-HM3-18 maintains this specification across its full operating temperature range.
Is VTVS28GSMF-HM3-18 qualified to AEC-Q101?
Yes, VTVS28GSMF-HM3-18 is AEC-Q101 qualified - explicitly stated in Vishay's ordering information table and environmental code "H" designation. This qualification covers stress tests including HTGB, AC/DC life test, and temperature cycling, validating its suitability for automotive powertrain and chassis applications. The VTVS28GSMF-HM3-18 meets all requirements for Grade 0 (–40 °C to +150 °C ambient) and Grade 1 (–40 °C to +125 °C ambient) use cases.
What is the maximum clamping voltage of VTVS28GSMF-HM3-18 under surge conditions?
The maximum reverse clamping voltage (VC) of VTVS28GSMF-HM3-18 is 47 V at 47 A peak pulse current (10/1000 μs waveform), as specified in the Electrical Characteristics table. This value represents the worst-case voltage seen by protected circuitry during a full-power surge event. The VTVS28GSMF-HM3-18 achieves this performance while maintaining low leakage (<0.05 μA at VRWM) and fast response time inherent to TransZorb® technology.
Does VTVS28GSMF-HM3-18 support automated assembly processes?
Yes, VTVS28GSMF-HM3-18 is fully compatible with both wave and reflow soldering, per Vishay's package data. Its SMF (DO-219AB) package has MSL level 1 rating (unlimited floor life), peak reflow temperature up to 260 °C, and halogen-free molding compound compliant with J-STD-020. The VTVS28GSMF-HM3-18 is supplied on 8 mm tape (3K per 7″ reel or 10K per 13″ reel), optimized for high-speed pick-and-place equipment.
How does the capacitance of VTVS28GSMF-HM3-18 affect high-speed signal lines?
The VTVS28GSMF-HM3-18 has a typical junction capacitance (CD) of 412 pF at 0 V and 1 MHz - measured and published in Vishay's datasheet. This value is appropriate for DC power rails and low-to-medium speed signals (e.g., CAN, LIN, UART), but not recommended for >100 MHz data lines like USB 3.x or PCIe. For VTVS28GSMF-HM3-18, the 412 pF capacitance introduces negligible impedance above 400 kHz, making it ideal for protecting 24 V power inputs without distorting control signals.
VTVS28GSMF-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):
- 27.9V
- Voltage - Breakdown (Min):
- 32.39V
- Voltage - Clamping (Max) @ Ipp:
- 47V
- Current - Peak Pulse (10/1000µs):
- 8.45A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 412pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS28GSMF-HM3-18 FAQ
1.How can I place an order for VTVS28GSMF-HM3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS28GSMF-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 VTVS28GSMF-HM3-18 reliable?
The price and inventory of VTVS28GSMF-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 VTVS28GSMF-HM3-18 is usually 5 days.
3.What payment methods are accepted for VTVS28GSMF-HM3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS28GSMF-HM3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS28GSMF-HM3-18?
VTVS28GSMF-HM3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS28GSMF-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 VTVS28GSMF-HM3-18?
For technical support, including VTVS28GSMF-HM3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS28GSMF-HM3-18 requirements.
6.How does Aetrix verify that VTVS28GSMF-HM3-18 is sourced from the original manufacturer or authorized distributors?
All VTVS28GSMF-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 VTVS28GSMF-HM3-18 meets industry standards.
7.What is the process for return or replacement of VTVS28GSMF-HM3-18?
All VTVS28GSMF-HM3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS28GSMF-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 VTVS28GSMF-HM3-18 part is unused and in its original packaging.
Return procedure for VTVS28GSMF-HM3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS28GSMF-HM3-18 Tags
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