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Vishay General Semiconductor - Diodes Division VTVS33GSMF-HM3-08
- Part No.:
- VTVS33GSMF-HM3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS33GSMF-HM3-08.pdf
- Description:
- TVS DIODE 33.3VWM 55VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,559
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Product details
Overview
VTVS33GSMF-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 33.3 V maximum stand-off voltage (VRWM), 38.27–39.84 V reverse breakdown voltage (VBR) at 1 mA, and clamps to ≤55 V at 7.11 A peak pulse current (10/1000 μs), supporting automotive infotainment power rail protection.
For engineers reviewing the VTVS33GSMF-HM3-08 datasheet, VTVS33GSMF-HM3-08 pinout, VTVS33GSMF-HM3-08 application, or VTVS33GSMF-HM3-08 equivalent, key selection criteria include ±2 % VBR tolerance, 379 pF capacitance at 0 V, IEC 61000-4-2 ±30 kV contact/air discharge compliance, and AEC-Q101 qualification status - all critical for robust interface-level ESD hardening in space-constrained designs.
Technical Context
This device operates as a unidirectional avalanche diode with fast response time enabled by "Low-Noise" technology, delivering precise clamping during ESD transients without parasitic oscillation. Its thermal resistance (RthJL = 20 K/W) and 175 °C max junction temperature support sustained operation in under-hood automotive environments.
The SMF package (DO-219AB) provides low-profile mounting (1.08 mm height) and compatibility with SOD-123W/SOD-123F footprints, enabling drop-in replacement in existing PCB layouts while maintaining wave and reflow solderability per J-STD-020 MSL level 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W (10/1000 μs waveform; sustains high-energy surges without failure) |
| Stand-off Voltage (VRWM) | 33.3 V (maximum continuous reverse voltage before leakage exceeds 0.05 μA) |
| Breakdown Voltage (VBR) | 38.27–39.84 V at IT = 1 mA (±2 % tolerance ensures tight clamping threshold control) |
| Clamping Voltage (VC) | ≤55 V at IPPM = 7.11 A (limits downstream IC voltage stress during 10/1000 μs surge) |
| Capacitance (CD) | 379 pF at VR = 0 V, f = 1 MHz (low enough for USB 2.0 and CAN FD signal line protection) |
| ESD Rating | ±30 kV contact / ±30 kV air (IEC 61000-4-2 Level 4; eliminates need for external ESD filters) |
| Operating Temperature | −55 °C to +175 °C (supports AEC-Q101 automotive grade reliability requirements) |
Pinout & Package
Package: SMF (DO-219AB), halogen-free molding compound, 1.08 mm max height, 3.9 mm × 1.9 mm footprint, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input side of protected line | Connected to signal/power line requiring surge suppression; referenced to system ground via cathode |
| Cathode | Ground reference terminal | Must be tied directly to low-impedance chassis or power ground to ensure effective clamping path |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % VBR tolerance | Tighter voltage window than ±5 % variants (e.g., VTVS33ASMF), enabling more predictable clamping in precision power rails |
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Low-profile SMF package | 1.08 mm height enables use in ultra-thin modules such as telematics and infotainment head units |
| Halogen-free & RoHS-compliant | Meets automotive OEM material compliance requirements (Vishay Doc. #99912) |
| Reflow/wave solderable | Compatible with standard SMT assembly processes up to 260 °C peak temperature |
Applications
| Automotive Infotainment Power Rails | USB 2.0 Data Line Protection |
|---|---|
|
Use Scenario: Protecting 3.3 V/5 V power inputs to head unit display controllers against load dump and ESD events. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between input rail and ground to clamp transients before reaching PMIC or SoC. Use Value: Prevents latch-up or permanent damage to display driver ICs during ±30 kV ESD contact discharge per IEC 61000-4-2. |
Use Scenario: Safeguarding differential D+/D− lines in automotive USB ports from electrostatic discharge. IC Role / Device Role / Timing Role: Bidirectional-capable layout using two VTVS33GSMF-HM3-08 devices (anode-to-anode) for symmetric clamping. Use Value: 379 pF capacitance avoids signal integrity degradation at 480 Mbps, meeting USB 2.0 eye diagram mask requirements. |
| CAN FD Bus Node Protection | Industrial Sensor Signal Conditioning |
|
Use Scenario: Shielding CAN FD transceivers (e.g., TCAN1042) from ISO 7637-2 pulse 1/2a/5a surges in vehicle networks. IC Role / Device Role / Timing Role: Unidirectional TVS connected between CANH/CANL and ground to absorb common-mode energy without affecting bus bias. Use Value: 400 W peak power rating handles repetitive 10/1000 μs pulses up to 7.11 A without derating in 12 V systems. |
Use Scenario: Guarding analog outputs (4–20 mA) of industrial pressure sensors exposed to field wiring surges. IC Role / Device Role / Timing Role: Standoff voltage (33.3 V) exceeds typical loop supply (24 V), ensuring no conduction during normal operation. Use Value: −55 °C to +175 °C operating range supports deployment in motor control cabinets and outdoor enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VTVS33ASMF-HM3-08 | ±5 % VBR tolerance (37.1–41.0 V) vs. ±2 % (38.27–39.84 V) | Less precise clamping threshold; suitable where tighter voltage control is not required | Select when cost sensitivity outweighs need for exact clamping voltage stability |
| SMAJ33A-Q | Same VRWM (33.3 V), but SMA package (DO-214AC); RthJL = 35 K/W vs. 20 K/W | Higher thermal resistance limits power dissipation in high-pulse-frequency scenarios | Prefer VTVS33GSMF-HM3-08 for compact, thermally demanding automotive placements |
Compared with VTVS33ASMF-HM3-08 and SMAJ33A-Q, the VTVS33GSMF-HM3-08 delivers superior voltage accuracy and thermal performance in a smaller footprint - making it optimal for next-generation automotive ECUs where board space and clamping consistency are critical.
Availability
VTVS33GSMF-HM3-08 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial sensor interfaces, and CAN FD network nodes requiring stable component supply across long production lifecycles.
Supply support for VTVS33GSMF-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 passive and active components for automotive, industrial, and computing markets.
The VTVS eSMP® Series targets high-speed, space-constrained ESD protection with AEC-Q101 qualification and optimized clamping performance for modern vehicle electronics architectures.
FAQ
What is the clamping voltage of the VTVS33GSMF-HM3-08 at its rated peak pulse current?
The VTVS33GSMF-HM3-08 clamps to a maximum of 55 V at its rated peak pulse current of 7.11 A (10/1000 μs waveform). This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during surge events, ensuring downstream ICs remain within safe operating margins.
Is the VTVS33GSMF-HM3-08 qualified for automotive applications?
Yes, the VTVS33GSMF-HM3-08 is AEC-Q101 qualified, confirming its suitability for automotive applications including engine control, body electronics, and infotainment systems. This qualification covers stress testing for temperature cycling, humidity, mechanical shock, and ESD robustness per the AEC standard.
What does the "HM3-08" suffix indicate in VTVS33GSMF-HM3-08?
The "HM3-08" suffix denotes halogen-free (H), lead-free (M), 3 k per 7″ reel packaging (3), and tape-and-reel format with 8 mm carrier tape width (08). This aligns with Vishay's environmental compliance coding and ensures compatibility with automated SMT placement equipment.
Can VTVS33GSMF-HM3-08 be used for bidirectional signal line protection?
The VTVS33GSMF-HM3-08 is unidirectional, but can be configured for bidirectional protection by connecting two units anode-to-anode. This arrangement provides symmetrical clamping for data lines like USB or RS-485, leveraging the device's low capacitance (379 pF) and fast response without compromising signal integrity.
How does the SMF package of VTVS33GSMF-HM3-08 compare to SOD-123W?
The SMF (DO-219AB) package of VTVS33GSMF-HM3-08 is mechanically compatible with SOD-123W footprints, sharing identical length (3.9 mm) and width (1.9 mm) dimensions. Its 1.08 mm height is lower than standard SOD-123W (1.27 mm), allowing thinner assemblies while maintaining solder joint reliability under thermal cycling.
VTVS33GSMF-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):
- 33.3V
- Voltage - Breakdown (Min):
- 38.27V
- Voltage - Clamping (Max) @ Ipp:
- 55V
- Current - Peak Pulse (10/1000µs):
- 7.11A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 379pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS33GSMF-HM3-08 FAQ
1.How can I place an order for VTVS33GSMF-HM3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS33GSMF-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 VTVS33GSMF-HM3-08 reliable?
The price and inventory of VTVS33GSMF-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 VTVS33GSMF-HM3-08 is usually 5 days.
3.What payment methods are accepted for VTVS33GSMF-HM3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS33GSMF-HM3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS33GSMF-HM3-08?
VTVS33GSMF-HM3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS33GSMF-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 VTVS33GSMF-HM3-08?
For technical support, including VTVS33GSMF-HM3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS33GSMF-HM3-08 requirements.
6.How does Aetrix verify that VTVS33GSMF-HM3-08 is sourced from the original manufacturer or authorized distributors?
All VTVS33GSMF-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 VTVS33GSMF-HM3-08 meets industry standards.
7.What is the process for return or replacement of VTVS33GSMF-HM3-08?
All VTVS33GSMF-HM3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS33GSMF-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 VTVS33GSMF-HM3-08 part is unused and in its original packaging.
Return procedure for VTVS33GSMF-HM3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS33GSMF-HM3-08 Tags
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