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Vishay General Semiconductor - Diodes Division VTVS19GSMF-HM3-18
- Part No.:
- VTVS19GSMF-HM3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS19GSMF-HM3-18.pdf
- Description:
- TVS DIODE 18.7VWM 31VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,942
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Product details
Overview
VTVS19GSMF-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 signal lines. It features 18.7 V maximum stand-off voltage (VRWM), 21.61–22.50 V reverse breakdown voltage (VBR) at 1 mA, 31 V maximum clamping voltage (VC) at 12.84 A peak pulse current, and ±30 kV IEC 61000-4-2 ESD immunity - deployed in automotive infotainment data lines.
For engineers reviewing the VTVS19GSMF-HM3-18 datasheet, VTVS19GSMF-HM3-18 pinout, VTVS19GSMF-HM3-18 application, or VTVS19GSMF-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 PCB assembly.
Technical Context
This device operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its precisely specified breakdown range (21.61–22.50 V). Its low-clamping performance (VC = 31 V @ IPPM = 12.84 A, 10/1000 μs) ensures protected ICs experience minimal overvoltage during transients.
The SMF (DO-219AB) package delivers thermal resistance RthJL = 20 K/W to leads and supports junction temperatures up to +175 °C. Its 558 pF capacitance at 0 V enables use on moderate-speed interfaces without signal integrity degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W (10/1000 μs waveform; sustains automotive load-dump surges) |
| Stand-off Voltage VRWM | 18.7 V (maximum continuous reverse voltage before leakage exceeds 0.05 μA) |
| Breakdown Voltage VBR | 21.61–22.50 V @ IT = 1 mA (±2 % tolerance ensures tight clamping threshold control) |
| Clamping Voltage VC | 31 V @ IPPM = 12.84 A (limits downstream IC stress during 10/1000 μs transients) |
| ESD Rating | ±30 kV contact & air discharge (IEC 61000-4-2; protects USB, CAN, LIN ports) |
| Capacitance CD | 558 pF @ VR = 0 V, f = 1 MHz (suitable for ≤10 Mbps data lines) |
| Operating Temperature | −55 °C to +175 °C (supports under-hood automotive deployment) |
Pinout & Package
SMF (DO-219AB) package: low-profile surface-mount outline measuring 3.9 × 1.9 × 1.08 mm, halogen-free molding compound, UL 94 V-0 rated, MSL level 1, compatible with SOD-123W footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to protected line's low-side reference (e.g., GND or signal return) |
| Cathode | Avalanche clamping node | Connected to protected signal line; cathode marking bar identifies polarity |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % VBR tolerance | Enables precise clamping threshold alignment with 18.7 V system rails, reducing false triggering |
| "Low-Noise" fast response | Sub-nanosecond turn-on time prevents ESD-induced latch-up in sensitive receivers |
| AEC-Q101 qualified option | Validated for automotive electronics per stress test requirements (HBM, TLP, temperature cycling) |
| Reflow/wave solder compatible | Withstands peak reflow temperature up to 260 °C, supporting automated PCB assembly |
| Halogen-free & RoHS-compliant | Meets automotive environmental standards and end-of-life recycling mandates |
Applications
| Automotive LIN Bus Protection | Industrial RS-485 Interface |
|---|---|
Use Scenario: Protects LIN transceivers against battery dump and ESD events in body control modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between LIN line and ground, clamping transients before they reach the transceiver input. Use Value: 31 V clamping voltage ensures LIN PHY remains within safe operating area during 12 V system surges. |
Use Scenario: Shields RS-485 transceivers in factory automation PLCs from cable-induced surges. IC Role / Device Role / Timing Role: Line-to-ground TVS on differential pair, absorbing common-mode transients without distorting signal edges. Use Value: 558 pF capacitance avoids skew or attenuation on 250 kbps RS-485 links. |
| USB 2.0 Data Line Protection | Automotive Infotainment Display Interface |
Use Scenario: Safeguards USB D+/D− pins in vehicle head units from hot-plug ESD. IC Role / Device Role / Timing Role: Dual unidirectional TVS (one per line) referenced to chassis ground, preserving signal integrity. Use Value: ±30 kV IEC 61000-4-2 rating meets OEM ESD test requirements for center console ports. |
Use Scenario: Protects MIPI DSI or LVDS video lines between infotainment SoC and display panel. IC Role / Device Role / Timing Role: Low-capacitance TVS on high-speed serial lanes, minimizing jitter and bit error rate. Use Value: 1.08 mm profile fits tight space constraints behind thin automotive displays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ19A-E3/57T | ±5 % VBR tolerance (19.0–21.1 V), higher VC = 32.4 V @ 12.3 A, same SMF package | Less precise clamping threshold; suitable where tighter VBR control is not required | Select for cost-sensitive industrial designs where ±5 % tolerance is acceptable |
| 1.5SMC19A | Higher PPPM = 1500 W, larger SMC (DO-214AB) package (7.1 × 6.2 × 2.6 mm), VC = 32.4 V @ 46.3 A | Used in high-energy surge environments (e.g., power supply inputs), not signal-line constrained spaces | Choose only when board layout allows larger footprint and higher energy handling is mandatory |
Compared with SMAJ19A-E3/57T and 1.5SMC19A, VTVS19GSMF-HM3-18 offers superior VBR precision (±2 % vs. ±5 %) and compactness (SMF vs. SMC), making it optimal for space-constrained, high-reliability automotive signal protection where clamping accuracy directly impacts system robustness.
Availability
VTVS19GSMF-HM3-18 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial communication interfaces, and USB peripheral protection requiring stable component supply across extended production lifecycles.
Supply support for VTVS19GSMF-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 passive and protection components for automotive, industrial, and computing markets.
The VTVS eSMP® Series targets high-density ESD/surge protection in automotive and industrial electronics, with emphasis on AEC-Q101 qualification, low-profile packaging, and precise parametric control for signal-line resilience.
FAQ
What is the breakdown voltage tolerance of VTVS19GSMF-HM3-18?
VTVS19GSMF-HM3-18 has a ±2 % reverse breakdown voltage (VBR) tolerance, specified as 21.61 V minimum to 22.50 V maximum at IT = 1 mA and TJ = 25 °C. This tight tolerance ensures consistent clamping behavior across production lots and supports robust design margins in 18.7 V rail systems.
Is VTVS19GSMF-HM3-18 AEC-Q101 qualified?
VTVS19GSMF-HM3-18 is offered in an AEC-Q101 qualified version (denoted by "H" in the ordering code). The "H" suffix confirms qualification per AEC-Q101 stress tests including HBM, TLP, temperature cycling, and high-temperature operating life - essential for automotive under-hood and cabin applications.
What is the maximum clamping voltage of VTVS19GSMF-HM3-18 under surge conditions?
The maximum reverse clamping voltage (VC) of VTVS19GSMF-HM3-18 is 31 V at a peak pulse current (IPPM) of 12.84 A with a 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during standardized surge events.
Can VTVS19GSMF-HM3-18 be used in reflow soldering processes?
Yes, VTVS19GSMF-HM3-18 is fully compatible with standard reflow soldering. Its SMF (DO-219AB) package is rated for peak reflow temperatures up to 260 °C, meeting IPC/JEDEC J-STD-020 requirements, and supports both lead-free and tin-plated terminations.
What does the "HM3-18" suffix in VTVS19GSMF-HM3-18 indicate?
The "HM3-18" suffix denotes: H = AEC-Q101 qualified, M = RoHS-compliant and lead-free, 3 = 3000 pcs per 7″ reel (tape width 8 mm), and 18 = halogen-free material compliance. This full ordering code ensures traceability to Vishay's environmental and reliability specifications.
VTVS19GSMF-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):
- 18.7V
- Voltage - Breakdown (Min):
- 21.61V
- Voltage - Clamping (Max) @ Ipp:
- 31V
- Current - Peak Pulse (10/1000µs):
- 12.84A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 558pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS19GSMF-HM3-18 FAQ
1.How can I place an order for VTVS19GSMF-HM3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS19GSMF-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 VTVS19GSMF-HM3-18 reliable?
The price and inventory of VTVS19GSMF-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 VTVS19GSMF-HM3-18 is usually 5 days.
3.What payment methods are accepted for VTVS19GSMF-HM3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS19GSMF-HM3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS19GSMF-HM3-18?
VTVS19GSMF-HM3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS19GSMF-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 VTVS19GSMF-HM3-18?
For technical support, including VTVS19GSMF-HM3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS19GSMF-HM3-18 requirements.
6.How does Aetrix verify that VTVS19GSMF-HM3-18 is sourced from the original manufacturer or authorized distributors?
All VTVS19GSMF-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 VTVS19GSMF-HM3-18 meets industry standards.
7.What is the process for return or replacement of VTVS19GSMF-HM3-18?
All VTVS19GSMF-HM3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS19GSMF-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 VTVS19GSMF-HM3-18 part is unused and in its original packaging.
Return procedure for VTVS19GSMF-HM3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS19GSMF-HM3-18 Tags
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