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Vishay General Semiconductor - Diodes Division VTVS21GSMF-M3-08
- Part No.:
- VTVS21GSMF-M3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS21GSMF-M3-08.pdf
- Description:
- TVS DIODE 20.5VWM 34VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,359
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Product details
Overview
VTVS21GSMF-M3-08 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 such as USB, HDMI, and automotive sensor interfaces. It features 20.5 V stand-off voltage (VRWM), ±2 % breakdown voltage tolerance (VBR = 23.72–24.69 V at IT = 1 mA), 34 V maximum clamping voltage at 11.67 A peak pulse current (10/1000 μs), and 513 pF typical junction capacitance at 0 V.
For engineers reviewing the VTVS21GSMF-M3-08 datasheet, VTVS21GSMF-M3-08 pinout, VTVS21GSMF-M3-08 application, or VTVS21GSMF-M3-08 equivalent, key selection criteria include its tight 2 % VBR tolerance, low-profile DO-219AB footprint compatible with SOD-123W layouts, ±30 kV IEC 61000-4-2 ESD rating, 175 °C max junction temperature, and halogen-free, AEC-Q101-qualified construction for automotive-grade reliability.
Technical Context
This device operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its precisely specified breakdown range (23.72–24.69 V). Its low clamping ratio (VC/VRWM ≈ 1.66) ensures robust overvoltage suppression while minimizing stress on downstream ICs during 10/1000 μs transients up to 400 W.
The SMF package enables high thermal efficiency (RthJL = 20 K/W) and supports both wave and reflow soldering per J-STD-020 MSL level 1. Its 513 pF capacitance at 0 V and fast response time make it suitable for data-line protection where signal integrity must be preserved alongside ESD immunity.
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 and industrial environments |
| Stand-off Voltage (VRWM) | 20.5 V; maximum continuous reverse voltage before significant leakage; matches 24 V nominal systems with margin |
| Breakdown Voltage (VBR) | 23.72–24.69 V at IT = 1 mA, ±2 % tolerance; enables precise overvoltage threshold setting |
| Clamping Voltage (VC) | 34 V at IPPM = 11.67 A; limits transient voltage seen by protected ICs to safe levels |
| Junction Capacitance | 513 pF at VR = 0 V, f = 1 MHz; low enough for USB 2.0 and CAN FD signal lines without excessive attenuation |
| ESD Rating | ±30 kV contact / ±30 kV air per IEC 61000-4-2; exceeds Level 4 requirements for harsh industrial and automotive applications |
| Operating Temperature | −55 °C to +175 °C; qualified for under-hood automotive use and extended industrial temperature ranges |
Pinout & Package
Package: SMF (DO-219AB), low-profile surface-mount case with cathode bar marking; dimensions 3.9 mm × 1.9 mm × 1.08 mm; compatible with SOD-123W footprint and reflow soldering (peak 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/protected line connection | Connected to signal or power line requiring transient suppression; forms cathode-to-ground configuration in unidirectional layout |
| Cathode | Reference/ground return path | Connected to system ground or low-impedance reference plane; carries full transient current during clamping event |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % VBR tolerance | Enables tighter design margins and predictable clamping behavior vs. ±5 % variants, critical for 24 V rail protection |
| Low-profile SMF package | 1.08 mm height allows placement in space-constrained modules (e.g., ADAS camera ECUs, infotainment connectors) |
| IEC 61000-4-2 ±30 kV ESD immunity | Eliminates need for external ESD staging in front-end interfaces; certified for direct board-level integration |
| AEC-Q101 qualification | Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD HBM/MM |
| Halogen-free & RoHS-compliant | Meets automotive OEM material compliance standards (e.g., GMW3172, Ford WSS-M99P9999-A1) and EU environmental directives |
Applications
| Automotive Sensor Interface | Industrial USB 2.0 Port |
|---|---|
|
Use Scenario: Protecting LIN/CAN transceiver inputs and analog sensor outputs (e.g., pressure, temperature) in engine control units and body controllers. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between signal line and chassis ground to clamp ESD and load-dump transients. Use Value: Prevents latch-up or damage to 24 V-tolerant transceivers during ISO 10605 events; 175 °C rating supports under-hood operation. |
Use Scenario: Safeguarding upstream USB 2.0 data lines (D+/D−) on PLC I/O modules and HMI panels exposed to field maintenance ESD. IC Role / Device Role / Timing Role: Low-capacitance TVS array element (single-channel) shunting transients to ground without degrading 480 Mbps signal integrity. Use Value: 513 pF capacitance avoids eye diagram closure; ±30 kV contact discharge rating exceeds IEC 61000-4-2 Level 4 requirement. |
| DC Power Input Protection | Automotive Camera Module |
|
Use Scenario: Guarding 24 V auxiliary power inputs on industrial gateways and PoE-powered edge devices against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Primary clamping device in series with input filter, absorbing energy before reaching DC/DC converter input stage. Use Value: 400 W peak power rating handles 10/1000 μs surges up to 11.67 A; 34 V clamping protects 36 V-rated input capacitors. |
Use Scenario: Shielding MIPI CSI-2 differential pairs and power rails in rear-view and surround-view camera modules mounted on vehicle exteriors. IC Role / Device Role / Timing Role: Discrete unidirectional TVS per signal line, placed adjacent to connector to minimize inductance and maximize ESD effectiveness. Use Value: DO-219AB footprint fits narrow flex PCB routing; AEC-Q101 qualification ensures reliability across thermal cycling and vibration profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A | ±5 % VBR tolerance (23.3–25.7 V), higher 35.5 V clamping at 11.3 A, SMA package (larger, 2.3 mm height) | Less precise threshold control; requires more PCB area; not AEC-Q101 qualified | Select when cost sensitivity outweighs precision and automotive qualification needs |
| TPSMD22A | ±5 % VBR (23.1–25.5 V), 35.1 V clamping at 11.4 A, same DO-219AB package but no AEC-Q101 or halogen-free certification | Lower ESD rating (±25 kV), no automotive qualification, non-halogen-free molding compound | Choose only for non-automotive industrial applications where full Vishay compliance is not required |
Compared with SMAJ22A and TPSMD22A, VTVS21GSMF-M3-08 delivers tighter voltage tolerance, guaranteed automotive qualification, and superior ESD immunity-making it the preferred choice for safety-critical 24 V systems where design margin and long-term reliability are non-negotiable.
Availability
VTVS21GSMF-M3-08 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial USB 2.0 ports, and DC power input protection requiring stable component supply, full traceability, and lifecycle continuity.
Supply support for VTVS21GSMF-M3-08 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, and optoelectronics for automotive, industrial, and computing markets.
The VTVS eSMP® Series targets high-speed, high-precision transient suppression in space-constrained, thermally demanding applications-designed specifically for next-generation automotive electronics and ruggedized industrial interfaces.
FAQ
What is the exact breakdown voltage range for VTVS21GSMF-M3-08?
The VTVS21GSMF-M3-08 has a reverse breakdown voltage (VBR) range of 23.72 V to 24.69 V at IT = 1 mA and TJ = 25 °C, with ±2 % tolerance confirmed in Vishay's Rev. 2.2 datasheet (Document Number: 85891). This tight tolerance ensures consistent clamping behavior across production lots and temperature extremes, directly supporting robust 24 V system design.
Is VTVS21GSMF-M3-08 qualified for automotive applications?
Yes, VTVS21GSMF-M3-08 is AEC-Q101 qualified, verified per Vishay's official documentation. It meets stress tests including high-temperature operating life (HTOL), temperature cycling (TCT), and human-body-model ESD (HBM), making it suitable for under-hood and cabin-mounted automotive electronics where reliability is mission-critical.
What is the maximum clamping voltage of VTVS21GSMF-M3-08 under surge conditions?
The maximum reverse clamping voltage (VC) of VTVS21GSMF-M3-08 is 34 V at a peak pulse current (IPPM) of 11.67 A with a 10/1000 μs waveform. This value is measured and guaranteed per the Electrical Characteristics table in the Vishay datasheet, ensuring downstream ICs see no more than 34 V during standardized surge events.
Does VTVS21GSMF-M3-08 support automated assembly processes?
Yes, VTVS21GSMF-M3-08 is fully compatible with standard SMT processes: it is wave and reflow solderable per J-STD-020 MSL level 1, with peak reflow temperature rated at 260 °C. Its DO-219AB (SMF) package uses halogen-free molding compound and tin-plated terminations, meeting IPC-A-610 Class 2/3 requirements.
What is the junction capacitance of VTVS21GSMF-M3-08, and how does it affect signal lines?
VTVS21GSMF-M3-08 has a typical junction capacitance of 513 pF at VR = 0 V and f = 1 MHz. This value is low enough to avoid significant signal degradation on USB 2.0 and CAN FD lines, provided layout minimizes trace length and parasitic inductance-enabling effective ESD protection without compromising data integrity.
VTVS21GSMF-M3-08 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):
- 20.5V
- Voltage - Breakdown (Min):
- 23.72V
- Voltage - Clamping (Max) @ Ipp:
- 34V
- Current - Peak Pulse (10/1000µs):
- 11.67A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 513pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS21GSMF-M3-08 FAQ
1.How can I place an order for VTVS21GSMF-M3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS21GSMF-M3-08 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 VTVS21GSMF-M3-08 reliable?
The price and inventory of VTVS21GSMF-M3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VTVS21GSMF-M3-08 is usually 5 days.
3.What payment methods are accepted for VTVS21GSMF-M3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS21GSMF-M3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS21GSMF-M3-08?
VTVS21GSMF-M3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS21GSMF-M3-08 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 VTVS21GSMF-M3-08?
For technical support, including VTVS21GSMF-M3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS21GSMF-M3-08 requirements.
6.How does Aetrix verify that VTVS21GSMF-M3-08 is sourced from the original manufacturer or authorized distributors?
All VTVS21GSMF-M3-08 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 VTVS21GSMF-M3-08 meets industry standards.
7.What is the process for return or replacement of VTVS21GSMF-M3-08?
All VTVS21GSMF-M3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS21GSMF-M3-08, 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 VTVS21GSMF-M3-08 part is unused and in its original packaging.
Return procedure for VTVS21GSMF-M3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS21GSMF-M3-08 Tags
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