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Vishay General Semiconductor - Diodes Division VTVS28GSMF-HM3-08
- Part No.:
- VTVS28GSMF-HM3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS28GSMF-HM3-08.pdf
- Description:
- TVS DIODE 27.9VWM 47VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,828
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Product details
Overview
VTVS28GSMF-HM3-08 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 stand-off voltage (VRWM), 32.39–33.72 V reverse breakdown voltage (VBR at IT = 1 mA), 47 A peak pulse current (IPPM, 10/1000 μs), 47 V maximum clamping voltage (VC), and 412 pF typical junction capacitance at 0 V - deployed in automotive infotainment power rails and USB-C port protection.
For engineers reviewing the VTVS28GSMF-HM3-08 datasheet, VTVS28GSMF-HM3-08 pinout, VTVS28GSMF-HM3-08 application, or VTVS28GSMF-HM3-08 equivalent, key selection criteria include ±2 % VBR tolerance, AEC-Q101 qualification status, halogen-free SOD-123W-compatible packaging, IEC 61000-4-2 ±30 kV ESD immunity, and thermal resistance of 20 K/W to infinite heat sink.
Technical Context
This device operates as a unidirectional avalanche diode with precise ±2 % breakdown voltage tolerance, enabling tight clamping margin control in 24 V nominal systems. Its low-profile SMF (DO-219AB) package supports high-density PCB layouts and meets reflow soldering standards up to 260 °C peak temperature.
The VTVS28GSMF-HM3-08 delivers 400 W peak pulse power handling per 10/1000 μs waveform, clamps transients to ≤47 V at 47 A, and maintains <0.05 μA leakage at VRWM - critical for preserving signal integrity and minimizing standby power loss in always-on automotive modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 27.9 V - maximum continuous reverse voltage before significant leakage; sets operating margin above 24 V system rail. |
| Breakdown Voltage (VBR) | 32.39–33.72 V at IT = 1 mA - tight ±2 % tolerance ensures predictable turn-on across temperature and production lots. |
| Clamping Voltage (VC) | 47 V at IPPM = 47 A (10/1000 μs) - defines worst-case voltage seen by protected IC during surge event. |
| Peak Pulse Power (PPP) | 400 W - sustains high-energy transients without degradation, validated per IEC 61000-4-5 Level 3 (1 kV line-to-line). |
| Junction Capacitance (CD) | 412 pF at VR = 0 V, f = 1 MHz - impacts high-speed data line insertion loss; suitable for USB 2.0 but not USB 3.0+. |
| ESD Rating | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - exceeds automotive OEM requirements for human-body-model robustness. |
| Operating Temperature | −55 °C to +175 °C - qualified for under-hood and powertrain environments per AEC-Q101 stress test conditions. |
Pinout & Package
Package: SMF (DO-219AB), halogen-free molding compound, 3.9 mm × 1.9 mm × 1.08 mm body, cathode marked by bar on top surface. Compatible with SOD-123W footprint and reflow profiles per J-STD-020 MSL level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; enables unidirectional clamping from protected line to GND. |
| Cathode | Protected line interface | Connected to input/power/data line; avalanche conduction occurs when line voltage exceeds VBR relative to Anode. |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % VBR tolerance | Enables tighter clamping window vs. ±5 % variants, reducing overvoltage risk to downstream 30 V-rated ICs. |
| AEC-Q101 qualification | Validated for automotive applications including engine control units, ADAS camera modules, and infotainment head units. |
| Low-profile SMF package | 1.08 mm height allows placement beneath connectors and in space-constrained USB-C or FAKRA interfaces. |
| "Low-Noise" fast response | Sub-nanosecond turn-on time limits voltage overshoot during ESD events, protecting sensitive analog front-ends. |
| Halogen-free & RoHS-compliant | Meets automotive ELV Directive and IPC-1752A material declaration requirements for Tier 1 supply chains. |
Applications
| Automotive USB-C Power Delivery | 24 V CAN FD Bus Protection |
|---|---|
|
Use Scenario: Protects USB-C receptacle VBUS line against load dump surges and hot-plug ESD in vehicle-mounted chargers. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBUS and chassis ground, clamping transients before they reach USB PD controller. Use Value: Maintains 27.9 V VRWM margin above 24 V nominal rail while clamping to 47 V - preventing damage to 30 V-rated buck converters and USB PHYs. |
Use Scenario: Shields CAN FD transceivers from ISO 7637-2 pulse 1/2a/5a transients and IEC 61000-4-2 ESD in body control modules. IC Role / Device Role / Timing Role: Standoff-connected TVS on CAN_H/CAN_L differential pair, referenced to ground via common-mode choke. Use Value: 412 pF capacitance avoids CAN FD bit-rate degradation at 5 Mbps; ±30 kV ESD rating exceeds OEM requirement for exposed harness connectors. |
| Industrial 24 V Sensor Interface | Smart Rearview Mirror Power Input |
|
Use Scenario: Guards 4–20 mA loop-powered sensor inputs against field wiring induced surges in factory automation PLCs. IC Role / Device Role / Timing Role: Series-connected TVS on sensor supply line, paired with polyfuse for overcurrent coordination. Use Value: 400 W peak power rating withstands repetitive 10/1000 μs surges per IEC 61000-4-5; 175 °C TJ max supports operation near motor drives. |
Use Scenario: Protects mirror's 24 V input from battery jump-start spikes and alternator load dump in premium vehicles. IC Role / Device Role / Timing Role: Primary clamping device on main power rail, upstream of DC/DC converter and display driver ICs. Use Value: AEC-Q101 qualification confirms reliability under thermal cycling and vibration; 20 K/W RthJL enables direct copper pour heatsinking on 2-layer PCBs. |
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-HM3-08 | ±5 % VBR tolerance (31.4–34.7 V), same VRWM and VC ratings | Lower cost; acceptable where tighter clamping margin is not required | Select for non-safety-critical 24 V industrial controls with relaxed voltage margin budgets. |
| SMAJ28A-Q | Same VRWM (28 V), but 400 W PPP, ±5 % VBR, SMA package (DO-214AC), higher RthJA | Larger footprint (4.5 × 2.7 mm), no AEC-Q101 qualification | Use only in non-automotive applications where board space permits and qualification is not mandated. |
Compared with VTVS28ASMF-HM3-08 and SMAJ28A-Q, the VTVS28GSMF-HM3-08 provides superior voltage precision and automotive qualification in a smaller, thermally optimized package - making it the preferred choice for space-constrained, safety-relevant 24 V systems requiring guaranteed clamping behavior across temperature and lifetime.
Availability
VTVS28GSMF-HM3-08 is available at Aetrix Electronics and suitable for automotive infotainment, industrial 24 V sensor interfaces, and smart mirror power input designs requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.
Supply support for VTVS28GSMF-HM3-08 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 targets high-speed, high-power transient suppression in compact automotive and industrial systems - engineered for AEC-Q101 compliance, low-profile mounting, and repeatable clamping performance under harsh environmental stress.
FAQ
What is the clamping voltage of the VTVS28GSMF-HM3-08 at its rated peak pulse current?
The VTVS28GSMF-HM3-08 has a maximum reverse clamping voltage (VC) of 47 V at 47 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per the absolute maximum ratings table and defines the upper voltage limit imposed on protected circuitry during surge events. The VTVS28GSMF-HM3-08 maintains this clamping performance across its full operating temperature range of −55 °C to +175 °C.
Is the VTVS28GSMF-HM3-08 qualified for automotive use?
Yes, the VTVS28GSMF-HM3-08 is AEC-Q101 qualified, confirming its suitability for automotive applications including engine control, ADAS, and infotainment systems. This qualification covers stress tests for temperature cycling, humidity bias, mechanical shock, and ESD - all performed on the final packaged device. The VTVS28GSMF-HM3-08 also meets IEC 61000-4-2 ±30 kV ESD immunity and operates reliably from −55 °C to +175 °C junction temperature.
How does the ±2 % VBR tolerance of the VTVS28GSMF-HM3-08 improve system protection?
The ±2 % VBR tolerance (32.39–33.72 V) of the VTVS28GSMF-HM3-08 reduces variation in turn-on voltage across production lots and temperature, ensuring consistent clamping behavior in 24 V systems. This tighter specification minimizes the risk of premature conduction or delayed clamping versus ±5 % variants like VTVS28ASMF-HM3-08, directly improving protection margin for 30 V-rated downstream ICs. The VTVS28GSMF-HM3-08 achieves this without sacrificing power rating or package size.
What is the thermal resistance of the VTVS28GSMF-HM3-08, and how does it affect PCB layout?
The VTVS28GSMF-HM3-08 has a thermal resistance of 20 K/W from junction to lead (RthJL) when mounted on an infinite heat sink. In practice, this means effective thermal management requires generous copper pours connected to both anode and cathode pads - especially important during repetitive surge events. The SMF (DO-219AB) package's low 1.08 mm profile allows direct thermal coupling to inner-layer planes, and the VTVS28GSMF-HM3-08's 175 °C max junction temperature supports operation in high-ambient environments when layout follows Vishay's recommended footprint.
Can the VTVS28GSMF-HM3-08 be used on high-speed data lines such as USB 2.0?
The VTVS28GSMF-HM3-08 has a typical junction capacitance of 412 pF at 0 V, which is acceptable for USB 2.0 (480 Mbps) signal integrity when placed on VBUS or shield lines, but not recommended for D+/D− differential pairs due to signal distortion. Its unidirectional configuration and 27.9 V VRWM make it ideal for power-rail protection in USB-C PD implementations. For data-line protection, lower-capacitance TVS devices are advised - the VTVS28GSMF-HM3-08 serves best where robust power-rail clamping is the primary requirement.
VTVS28GSMF-HM3-08 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):
- 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-HM3-08 FAQ
1.How can I place an order for VTVS28GSMF-HM3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS28GSMF-HM3-08 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 VTVS28GSMF-HM3-08 reliable?
The price and inventory of VTVS28GSMF-HM3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VTVS28GSMF-HM3-08 is usually 5 days.
3.What payment methods are accepted for VTVS28GSMF-HM3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS28GSMF-HM3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS28GSMF-HM3-08?
VTVS28GSMF-HM3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS28GSMF-HM3-08 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 VTVS28GSMF-HM3-08?
For technical support, including VTVS28GSMF-HM3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS28GSMF-HM3-08 requirements.
6.How does Aetrix verify that VTVS28GSMF-HM3-08 is sourced from the original manufacturer or authorized distributors?
All VTVS28GSMF-HM3-08 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 VTVS28GSMF-HM3-08 meets industry standards.
7.What is the process for return or replacement of VTVS28GSMF-HM3-08?
All VTVS28GSMF-HM3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS28GSMF-HM3-08, 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 VTVS28GSMF-HM3-08 part is unused and in its original packaging.
Return procedure for VTVS28GSMF-HM3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS28GSMF-HM3-08 Tags
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