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Vishay General Semiconductor - Diodes Division VTVS31GSMF-HM3-08
- Part No.:
- VTVS31GSMF-HM3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS31GSMF-HM3-08.pdf
- Description:
- TVS DIODE 30.6VWM 51VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,655
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Product details
Overview
VTVS31GSMF-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 on low-voltage DC lines such as USB, HDMI, and automotive sensor interfaces. It features a 30.6 V stand-off voltage (VRWM), 35.28–36.72 V reverse breakdown voltage (VBR) at 1 mA, ±2 % tolerance, 51 A peak pulse current (IPPM), and 51 V maximum clamping voltage (VC) under 10/1000 μs waveform.
For engineers reviewing the VTVS31GSMF-HM3-08 datasheet, VTVS31GSMF-HM3-08 pinout, VTVS31GSMF-HM3-08 application, or VTVS31GSMF-HM3-08 equivalent, this device delivers precise overvoltage clamping with IEC 61000-4-2 ±30 kV contact/air discharge compliance, halogen-free construction, and AEC-Q101 qualification - critical for automotive infotainment and ADAS signal line protection.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its precisely specified breakdown range (35.28–36.72 V). Its low dynamic impedance ensures rapid response (<1 ns) and stable clamping at 51 V up to 51 A peak pulse current, maintaining system integrity during fast transients.
The SMF (DO-219AB) package supports wave and reflow soldering, with MSL level 1 moisture sensitivity and 1.08 mm max height enabling high-density PCB layouts. Thermal resistance of 20 K/W (junction-to-lead, infinite heat sink) supports reliable power dissipation in compact automotive and industrial modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W (10/1000 μs waveform) - sustains high-energy surges without failure in automotive load-dump or EFT scenarios |
| Stand-off Voltage (VRWM) | 30.6 V - blocks normal operating voltage while remaining fully off until transient exceeds threshold |
| Breakdown Voltage (VBR) | 35.28–36.72 V at 1 mA - tight ±2 % tolerance enables accurate margining against system overvoltage limits |
| Clamping Voltage (VC) | 51 V at 51 A IPPM - limits downstream IC voltage stress to safe levels during worst-case surge events |
| ESD Rating | ±30 kV contact / ±30 kV air (IEC 61000-4-2) - meets highest-level board-level ESD immunity requirements |
| Capacitance (CD) | 380 pF at 0 V - optimized for DC/low-speed signal lines; suitable for CAN, LIN, and sensor bus protection |
| Operating Temperature | −55 °C to +175 °C - qualified for under-hood automotive environments and industrial control cabinets |
Pinout & Package
SMF (DO-219AB) low-profile surface-mount package: 3.9 mm × 1.9 mm × 1.08 mm, halogen-free molding compound, cathode marked by bar on top surface. Compatible with SOD-123W footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node for unidirectional clamping | Connected to ground or low-side return path; defines polarity of suppression action |
| Cathode | Protected line input | Connected to signal/power line being protected; conducts avalanche current to anode during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % VBR tolerance | Enables tighter design margins vs. ±5 % variants, reducing risk of false triggering or insufficient clamping |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and mechanical shock per JESD22 |
| Low-noise fast response | Sub-nanosecond turn-on time minimizes voltage overshoot before clamping engages |
| Halogen-free & RoHS-compliant | Meets automotive OEM material compliance requirements (e.g., GMW3172, Ford WSS-M99P9999-A1) |
| Wave/reflow solderable | Rated for peak reflow temperatures up to 260 °C, compatible with standard SMT assembly processes |
Applications
| Automotive Sensor Interface | Industrial CAN Bus Node |
|---|---|
Use Scenario: Protecting 5 V–32 V analog sensor outputs (e.g., pressure, temperature) in engine control units against ISO 7637-2 pulses and ESD. IC Role / Device Role / Timing Role: Unidirectional transient clamp placed between sensor output and microcontroller ADC input. Use Value: Maintains signal fidelity during 51 A transients while holding clamped voltage ≤51 V, preventing ADC saturation or latch-up. |
Use Scenario: Safeguarding CAN_H/CAN_L lines in gateways or body control modules exposed to battery transients and ESD. IC Role / Device Role / Timing Role: Bidirectional protection implemented using two VTVS31GSMF-HM3-08 devices (cathode-to-cathode) per line. Use Value: 380 pF capacitance avoids CAN bit-rate degradation at 1 Mbps; ±30 kV ESD rating exceeds ISO 10605 requirements. |
| USB Type-C Port Protection | Power Supply Input Stage |
Use Scenario: Clamping surges on VBUS and CC lines of automotive USB-C ports subjected to hot-plug and load-dump events. IC Role / Device Role / Timing Role: Standoff-rated TVS placed directly at connector entry point, upstream of buck converter and USB controller. Use Value: 30.6 V VRWM allows operation across full USB PD 3.0 VBUS range (5–20 V); 400 W rating handles sustained 10/1000 μs surges. |
Use Scenario: Secondary-stage overvoltage protection on 24 V industrial PLC power inputs after primary DC/DC conversion. IC Role / Device Role / Timing Role: Final-clamp device shunting transients to ground before sensitive logic rails and regulators. Use Value: 175 °C max junction temperature supports continuous operation in sealed enclosures; 20 K/W RthJL aids thermal management. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33A-E3/57T | ±5 % VBR tolerance (35.1–38.7 V), 33 V VRWM, 400 W rating, SMA package (larger footprint) | Higher VBR spread increases risk of premature conduction in precision 30.6 V systems; SMA requires more board area | Select only if ±5 % tolerance is acceptable and board space permits larger package |
| TPSMD33A | 33 V VRWM, ±5 % VBR, 400 W, DO-214AB package, not AEC-Q101 qualified | Lacks automotive qualification and tighter tolerance; lower thermal performance (RthJL = 25 K/W) | Use in non-automotive industrial applications where AEC-Q101 and ±2 % are not required |
Compared with SMAJ33A-E3/57T and TPSMD33A, VTVS31GSMF-HM3-08 provides superior accuracy (±2 %), automotive qualification, and smaller SMF footprint - making it optimal for space-constrained, safety-critical vehicle subsystems requiring repeatable clamping behavior.
Availability
VTVS31GSMF-HM3-08 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus nodes, USB Type-C port protection, and power supply input stages requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for VTVS31GSMF-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 TransZorb® eSMP® series - including VTVS31GSMF-HM3-08 - is engineered specifically for robust transient suppression in harsh automotive environments, with emphasis on AEC-Q101 compliance, low-profile packaging, and precise voltage thresholds.
FAQ
What is the exact reverse breakdown voltage range for VTVS31GSMF-HM3-08?
The VTVS31GSMF-HM3-08 has a reverse breakdown voltage (VBR) range of 35.28 V to 36.72 V at IT = 1 mA and TJ = 25 °C, reflecting its ±2 % tolerance specification. This tight range ensures consistent clamping behavior across production lots and supports precise overvoltage margining in automotive and industrial designs where predictable turn-on is critical.
Is VTVS31GSMF-HM3-08 qualified for automotive use?
Yes, VTVS31GSMF-HM3-08 is AEC-Q101 qualified, having passed rigorous stress tests including temperature cycling, high-temperature reverse bias (HTRB), and mechanical shock per JESD22 standards. This qualification confirms its suitability for under-hood and cabin applications in passenger vehicles and commercial vehicles where reliability under thermal and vibration stress is mandatory.
What does the "HM3-08" suffix indicate in VTVS31GSMF-HM3-08?
The "HM3-08" suffix denotes halogen-free (H), lead-free tin-plated terminations (M), 3 k per 7″ reel packaging (3), and RoHS-compliant environmental coding (08). This matches Vishay's standardized ordering nomenclature and confirms compliance with automotive material restrictions and SMT assembly requirements.
Can VTVS31GSMF-HM3-08 be used for bidirectional protection?
No - VTVS31GSMF-HM3-08 is a unidirectional TVS diode. For bidirectional protection (e.g., on AC or differential lines like CAN), two VTVS31GSMF-HM3-08 devices must be connected cathode-to-cathode, or a dedicated bidirectional part such as VTVS31GBSMF-HM3-08 should be selected. Using a single unidirectional device on bidirectional signals risks forward conduction damage.
What is the thermal resistance and maximum junction temperature of VTVS31GSMF-HM3-08?
VTVS31GSMF-HM3-08 has a thermal resistance RthJL of 20 K/W (junction-to-lead, mounted on infinite heat sink) and a maximum junction temperature (TJ) of +175 °C. These values enable reliable operation in high-ambient environments such as engine compartments, provided PCB copper area and layout follow Vishay's recommended footprint for thermal dissipation.
VTVS31GSMF-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):
- 30.6V
- Voltage - Breakdown (Min):
- 35.28V
- Voltage - Clamping (Max) @ Ipp:
- 51V
- Current - Peak Pulse (10/1000µs):
- 7.74A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 380pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS31GSMF-HM3-08 FAQ
1.How can I place an order for VTVS31GSMF-HM3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS31GSMF-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 VTVS31GSMF-HM3-08 reliable?
The price and inventory of VTVS31GSMF-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 VTVS31GSMF-HM3-08 is usually 5 days.
3.What payment methods are accepted for VTVS31GSMF-HM3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS31GSMF-HM3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS31GSMF-HM3-08?
VTVS31GSMF-HM3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS31GSMF-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 VTVS31GSMF-HM3-08?
For technical support, including VTVS31GSMF-HM3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS31GSMF-HM3-08 requirements.
6.How does Aetrix verify that VTVS31GSMF-HM3-08 is sourced from the original manufacturer or authorized distributors?
All VTVS31GSMF-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 VTVS31GSMF-HM3-08 meets industry standards.
7.What is the process for return or replacement of VTVS31GSMF-HM3-08?
All VTVS31GSMF-HM3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS31GSMF-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 VTVS31GSMF-HM3-08 part is unused and in its original packaging.
Return procedure for VTVS31GSMF-HM3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS31GSMF-HM3-08 Tags
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