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Vishay General Semiconductor - Diodes Division VTVS47GSMF-HM3-18
- Part No.:
- VTVS47GSMF-HM3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS47GSMF-HM3-18.pdf
- Description:
- TVS DIODE 46.8VWM 80VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,283
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Product details
Overview
VTVS47GSMF-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 46.8 V stand-off voltage (VRWM), ±2 % tolerance on avalanche breakdown voltage (54.88–57.12 V at IT = 1 mA), and clamps to ≤80 V at 4.9 A peak pulse current (10/1000 μs), with 293 pF capacitance at 0 V - suitable for USB 2.0, automotive sensor interfaces, and industrial I/O protection.
For engineers reviewing the VTVS47GSMF-HM3-18 datasheet, VTVS47GSMF-HM3-18 pinout, VTVS47GSMF-HM3-18 application, or VTVS47GSMF-HM3-18 equivalent, key selection criteria include its 46.8 V working voltage, ±2 % VBR tolerance, 80 V clamping at 4.9 A, 175 °C max junction temperature, and halogen-free, AEC-Q101-qualified construction in SOD-123W-compatible SMF package.
Technical Context
This device operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its precisely specified breakdown range (54.88–57.12 V). Its low clamping ratio (VC/VBR ≈ 1.44) and fast response time enable effective suppression of ESD transients per IEC 61000-4-2 (±30 kV contact/air discharge) and lightning-induced surges per 10/1000 μs waveform.
The SMF package provides thermal resistance of 20 K/W (junction-to-lead, mounted on infinite heat sink), supports wave and reflow soldering (peak 260 °C), and meets MSL Level 1 per J-STD-020. Its 293 pF capacitance at 0 V and low leakage (<0.05 μA at VRWM) minimize signal distortion in high-speed data lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 46.8 V - maximum continuous reverse operating voltage before conduction begins |
| Avalanche Breakdown (VBR) | 54.88–57.12 V at IT = 1 mA, ±2 % tolerance - ensures precise, repeatable turn-on threshold |
| Peak Pulse Power (PPP) | 400 W at 10/1000 μs - sustains high-energy transients without failure |
| Clamping Voltage (VC) | ≤80 V at IPPM = 4.9 A - limits downstream voltage stress during surge events |
| Junction Temperature (TJ) | −55 °C to +175 °C - enables operation in under-hood automotive and industrial environments |
| Capacitance (CD) | 293 pF at VR = 0 V, f = 1 MHz - compatible with USB 2.0 and CAN FD signal integrity requirements |
| ESD Rating | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - exceeds Level 4 immunity standard |
Pinout & Package
Package: SMF (DO-219AB), low-profile surface-mount case compatible with SOD-123W footprint; dimensions: 3.9 mm × 1.9 mm × 1.08 mm; cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current path / reference node for unidirectional clamping | Connected to protected line's low-side (e.g., GND-referenced signal return); defines polarity-sensitive protection direction |
| Cathode | Clamping node / high-voltage input terminal | Connected to protected line (e.g., USB D+, CAN_H); conducts avalanche current to anode during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % VBR tolerance | Enables tighter system-level voltage margin control vs. ±5 % variants, reducing risk of false triggering or inadequate protection |
| Halogen-free & RoHS-compliant | Meets automotive and industrial environmental compliance mandates without compromising thermal or electrical performance |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress - suitable for engine control and ADAS sensors |
| Low-noise fast response | Sub-nanosecond turn-on minimizes voltage overshoot during ESD events, protecting sensitive analog front-ends and microcontroller I/O |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow without baking - simplifies manufacturing for high-volume PCB assembly |
Applications
| Automotive Sensor Interface | USB 2.0 Data Line Protection |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., pressure, temperature) in engine control modules from load dump and ESD. IC Role / Device Role / Timing Role: Unidirectional clamping diode placed between signal line and chassis ground. Use Value: Withstands 175 °C junction temperature and clamps transients to ≤80 V, preventing MCU ADC input damage while maintaining <0.05 μA leakage at 46.8 V. |
Use Scenario: Safeguarding USB 2.0 D+ and D− lines against ESD in portable infotainment head units. IC Role / Device Role / Timing Role: Low-capacitance TVS connected from data line to ground, preserving 480 Mbps signal integrity. Use Value: 293 pF capacitance and fast response prevent bit errors; ±30 kV IEC 61000-4-2 rating ensures robustness across production and field use. |
| Industrial PLC Digital Input | DC Power Rail Surge Suppression |
Use Scenario: Protecting 24 V digital input channels in programmable logic controllers from induced surges on factory floor wiring. IC Role / Device Role / Timing Role: Standoff-rated TVS shunting transients from input optocoupler to common ground. Use Value: 46.8 V VRWM allows safe operation across 24 V ±10 % supply variation; 400 W peak power handles repetitive 10/1000 μs surges per IEC 61000-4-5. |
Use Scenario: Secondary-stage clamping on 48 V telecom or PoE-powered equipment DC rails after primary MOV protection. IC Role / Device Role / Timing Role: Fast-acting secondary suppressor limiting rail voltage excursion during fast-rising transients. Use Value: Clamps to ≤80 V within nanoseconds, preventing overvoltage shutdown of DC-DC converters rated for 60 V input max. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ47A-E3/57T | Same VRWM (47 V), but ±5 % VBR tolerance (50.4–54.6 V); 400 W PPP; SMA package (larger, higher Rth) | Higher thermal resistance (40 K/W vs. 20 K/W) limits power handling in compact layouts | Select when cost sensitivity outweighs precision clamping and thermal performance |
| TPSMD47CA | Bi-directional configuration; same VRWM (47 V), ±5 % VBR; 400 W PPP; DO-214AB package | Supports AC-coupled or bidirectional signal lines (e.g., RS-485), unlike unidirectional VTVS47GSMF-HM3-18 | Choose only if bidirectional protection is required; not a drop-in replacement due to polarity and footprint mismatch |
Compared with SMAJ47A-E3/57T and TPSMD47CA, VTVS47GSMF-HM3-18 offers tighter ±2 % breakdown tolerance, lower thermal resistance, and smaller SMF footprint - delivering superior precision and thermal performance in space-constrained automotive and industrial designs where unidirectional protection suffices.
Availability
VTVS47GSMF-HM3-18 is available at Aetrix Electronics and suitable for automotive sensor interfaces, USB 2.0 data line protection, and industrial PLC digital inputs requiring stable component supply, long-term lifecycle support, and AEC-Q101-qualified reliability.
Supply support for VTVS47GSMF-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 delivers high-power, low-profile TVS diodes optimized for ESD and surge protection in space-constrained, high-temperature environments - targeting automotive electronics, industrial automation, and high-speed interface protection.
FAQ
What is the exact breakdown voltage range for VTVS47GSMF-HM3-18?
The VTVS47GSMF-HM3-18 has a reverse breakdown voltage (VBR) range of 54.88 V to 57.12 V at IT = 1 mA, with ±2 % tolerance as specified in Vishay's Rev. 2.2 datasheet (Document Number: 85891). This tight tolerance ensures consistent clamping behavior across production lots and temperature ranges, critical for systems with narrow voltage margins. The VTVS47GSMF-HM3-18 achieves this via precision process control during wafer fabrication and final test screening.
Is VTVS47GSMF-HM3-18 suitable for automotive under-hood applications?
Yes, VTVS47GSMF-HM3-18 is AEC-Q101 qualified and rated for junction temperatures from −55 °C to +175 °C, making it suitable for under-hood automotive applications such as engine control unit sensor protection and LIN bus interfaces. Its halogen-free, RoHS-compliant construction and MSL Level 1 rating further support high-reliability automotive manufacturing. The VTVS47GSMF-HM3-18 also passes rigorous stress tests including temperature cycling and HTRB per AEC-Q101 requirements.
What is the clamping voltage of VTVS47GSMF-HM3-18 at its rated peak pulse current?
The VTVS47GSMF-HM3-18 clamps to a maximum of 80 V at its rated peak pulse current (IPPM) of 4.9 A under the 10/1000 μs waveform condition. This clamping voltage is measured at the device terminals and defines the upper voltage limit imposed on protected circuitry during surge events. The VTVS47GSMF-HM3-18 maintains this performance across its full operating temperature range, ensuring predictable protection in real-world conditions.
Does VTVS47GSMF-HM3-18 meet IEC 61000-4-2 ESD immunity standards?
Yes, VTVS47GSMF-HM3-18 is rated for ±30 kV contact discharge and ±30 kV air discharge per IEC 61000-4-2, exceeding Level 4 - the highest severity class. This rating is verified through standardized testing on production lots and applies across its full temperature range. The VTVS47GSMF-HM3-18 achieves this performance using Vishay's "Low-Noise" avalanche technology, enabling sub-nanosecond response to fast-rising ESD transients.
What is the package type and footprint compatibility of VTVS47GSMF-HM3-18?
VTVS47GSMF-HM3-18 uses the SMF (DO-219AB) package - a low-profile surface-mount case measuring 3.9 mm × 1.9 mm × 1.08 mm - and is compatible with SOD-123W, SOD-123F, and SOD-123FL footprints. Its cathode is marked by a bar on the top surface, and it supports both wave and reflow soldering (peak 260 °C). The VTVS47GSMF-HM3-18's footprint alignment and thermal pad design allow direct substitution into existing SOD-123W layouts without PCB redesign.
VTVS47GSMF-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):
- 46.8V
- Voltage - Breakdown (Min):
- 54.88V
- Voltage - Clamping (Max) @ Ipp:
- 80V
- Current - Peak Pulse (10/1000µs):
- 4.9A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 293pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS47GSMF-HM3-18 FAQ
1.How can I place an order for VTVS47GSMF-HM3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS47GSMF-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 VTVS47GSMF-HM3-18 reliable?
The price and inventory of VTVS47GSMF-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 VTVS47GSMF-HM3-18 is usually 5 days.
3.What payment methods are accepted for VTVS47GSMF-HM3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS47GSMF-HM3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS47GSMF-HM3-18?
VTVS47GSMF-HM3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS47GSMF-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 VTVS47GSMF-HM3-18?
For technical support, including VTVS47GSMF-HM3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS47GSMF-HM3-18 requirements.
6.How does Aetrix verify that VTVS47GSMF-HM3-18 is sourced from the original manufacturer or authorized distributors?
All VTVS47GSMF-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 VTVS47GSMF-HM3-18 meets industry standards.
7.What is the process for return or replacement of VTVS47GSMF-HM3-18?
All VTVS47GSMF-HM3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS47GSMF-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 VTVS47GSMF-HM3-18 part is unused and in its original packaging.
Return procedure for VTVS47GSMF-HM3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS47GSMF-HM3-18 Tags
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