Vishay General Semiconductor - Diodes Division VTVS8V5GSMF-M3-08
- Part No.:
- VTVS8V5GSMF-M3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS8V5GSMF-M3-08.pdf
- Description:
- TVS DIODE 8.5VWM 13.5VC DO219AB
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
VTVS8V5GSMF-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. It features 8.5 V maximum stand-off voltage (VRWM), 9.80–10.20 V reverse breakdown voltage (VBR) at 1 mA, 13.5 V maximum clamping voltage (VC) at 29.10 A peak pulse current (IPPM), and ±30 kV IEC 61000-4-2 ESD immunity - used in USB 2.0 data line protection.
For engineers reviewing the VTVS8V5GSMF-M3-08 datasheet, VTVS8V5GSMF-M3-08 pinout, VTVS8V5GSMF-M3-08 application, or VTVS8V5GSMF-M3-08 equivalent, key selection criteria include its ±2 % VBR tolerance, 1270 pF typical junction capacitance at 0 V, 175 °C max junction temperature, low-profile SOD-123W-compatible footprint, and AEC-Q101 qualification option.
Technical Context
This TVS diode operates as a unidirectional clamping device with avalanche breakdown behavior, triggered when reverse voltage exceeds 9.80 V (min) at 1 mA test current. Its low-noise fast-response design achieves sub-nanosecond turn-on to limit transients before IC damage occurs.
The device uses silicon planar construction in a halogen-free molding compound, rated for 20 K/W thermal resistance (junction-to-lead), and supports wave and reflow soldering per J-STD-020 MSL level 1 conditions up to 260 °C peak temperature.
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) | 8.5 V (maximum continuous reverse operating voltage before leakage exceeds 0.1 μA) |
| Breakdown Voltage (VBR) | 9.80–10.20 V at IT = 1 mA (±2 % tolerance ensures precise trigger threshold for 8.5 V systems) |
| Clamping Voltage (VC) | 13.5 V at IPPM = 29.10 A (limits downstream voltage to safe level during 400 W transient) |
| Junction Capacitance (CD) | 1270 pF at VR = 0 V, f = 1 MHz (low enough for USB 2.0 signal integrity; avoids data distortion) |
| ESD Rating | ±30 kV contact & air discharge per IEC 61000-4-2 (meets industrial and automotive ESD robustness requirements) |
| Operating Temperature | −55 °C to +175 °C (supports under-hood automotive and industrial environments) |
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 | Input/protected line connection | Connected to signal or power line requiring transient suppression (e.g., USB D+) |
| Cathode | Ground reference terminal | Connected to system ground plane; defines unidirectional clamping direction from anode to cathode |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power | Handles high-energy lightning-induced surges (IEC 61000-4-5 Level 3) without degradation |
| ±2 % VBR tolerance | Enables tighter margin design for 8.5 V rails vs. ±5 % variants, reducing overdesign risk |
| Low-profile SMF package | 1.08 mm height allows use in space-constrained portable electronics and automotive ECUs |
| IEC 61000-4-2 ±30 kV ESD | Eliminates need for external ESD diodes in USB, HDMI, and sensor interfaces |
| AEC-Q101 qualification option | Validated for automotive applications including infotainment and body control modules |
Applications
| USB 2.0 Data Line Protection | Automotive Infotainment Interface |
|---|---|
|
Use Scenario: Protecting D+ and D− lines in USB 2.0 ports against ESD events and cable discharge. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between data line and chassis ground. Use Value: 1270 pF capacitance preserves signal rise/fall times; 13.5 V clamping prevents damage to USB transceivers rated for ≤15 V abs max. |
Use Scenario: Safeguarding LVDS or CAN FD signal lines in head unit display interfaces exposed to board-level ESD. IC Role / Device Role / Timing Role: Standoff protection element on differential pairs routed near connectors. Use Value: −55 °C to +175 °C operation supports under-dash mounting; ±2 % VBR ensures consistent triggering across temperature. |
| Industrial Sensor Signal Conditioning | Power Supply Input Rail Clamping |
|
Use Scenario: Shielding 4–20 mA analog sensor outputs from induced transients in factory automation wiring. IC Role / Device Role / Timing Role: Reverse-biased shunt protector on signal line referenced to local ground. Use Value: 29.10 A IPPM handles long-duration surges from relay switching; 1.08 mm height fits dense PCB layouts. |
Use Scenario: Suppressing load dump and jump-start spikes on 12 V input rails of embedded controllers. IC Role / Device Role / Timing Role: Primary clamping device parallel to input capacitor, upstream of LDO. Use Value: 400 W rating absorbs 12 V/33 A pulses; 175 °C TJ max enables placement near hot power components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.5A | ±5 % VBR (8.06–8.94 V), 15.0 V VC at 25.4 A, SMA package (2.5 mm height) | Higher clamping voltage and looser tolerance reduce protection margin for 8.5 V systems | Select when cost sensitivity outweighs precision clamping needs and board height >2.5 mm is acceptable |
| VTVS8V5ASMF-M3-08 | ±5 % VBR (9.5–10.5 V), identical package and 13.5 V VC, same 1270 pF capacitance | Less precise breakdown threshold increases risk of premature conduction in tight-margin designs | Choose only if ±5 % tolerance suffices and AEC-Q101 is not required |
Compared with VTVS8V5GSMF-M3-08, SMAJ8.5A offers lower cost but sacrifices clamping precision and thermal performance, while VTVS8V5ASMF-M3-08 matches form/fit/function except for reduced VBR accuracy - making the G-grade optimal for high-reliability 8.5 V rail protection.
Availability
VTVS8V5GSMF-M3-08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, automotive infotainment subsystems, and industrial sensor signal conditioning requiring stable component supply and full traceability.
Supply support for VTVS8V5GSMF-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, optoelectronics, and passive components for automotive, industrial, and computing markets.
The TransZorb® TVS family, including VTVS8V5GSMF-M3-08, is engineered for robust ESD and surge immunity in space-constrained, high-temperature environments - targeting automotive electronics, industrial controls, and high-speed data interfaces.
FAQ
What is the clamping voltage of VTVS8V5GSMF-M3-08 at its rated peak pulse current?
The VTVS8V5GSMF-M3-08 has a maximum reverse clamping voltage (VC) of 13.5 V when subjected to its rated 29.10 A peak pulse current (IPPM) under a 10/1000 μs waveform. This value ensures protected circuits remain below critical voltage thresholds during surge events, directly supporting reliability in 8.5 V system designs.
Is VTVS8V5GSMF-M3-08 qualified to AEC-Q101?
VTVS8V5GSMF-M3-08 is offered in an AEC-Q101 qualified version (denoted by "H" in ordering code, e.g., VTVS8V5GSMF-HM3-08). The base part number VTVS8V5GSMF-M3-08 itself is RoHS-compliant and halogen-free but requires explicit ordering with the "H" suffix to receive AEC-Q101 certification documentation and testing validation.
How does the ±2 % VBR tolerance of VTVS8V5GSMF-M3-08 improve system protection versus ±5 % variants?
The ±2 % VBR tolerance (9.80–10.20 V) of VTVS8V5GSMF-M3-08 provides tighter control over the avalanche initiation point compared to ±5 % versions like VTVS8V5ASMF-M3-08 (9.5–10.5 V), minimizing risk of false triggering near the 8.5 V VRWM and ensuring more predictable clamping onset - critical for protecting sensitive 8.5 V logic rails.
What is the thermal resistance and maximum junction temperature specification for VTVS8V5GSMF-M3-08?
VTVS8V5GSMF-M3-08 has a thermal resistance RthJL of 20 K/W (junction-to-lead, mounted on infinite heat sink) and a maximum junction temperature (TJ) rating of +175 °C. These specs enable reliable operation in high-ambient environments such as engine compartments or enclosed industrial enclosures without derating.
Can VTVS8V5GSMF-M3-08 be used in bidirectional signal lines like RS-485?
No - VTVS8V5GSMF-M3-08 is a unidirectional TVS diode and must be used with correct polarity (anode to line, cathode to ground). For bidirectional lines such as RS-485, a dedicated bidirectional variant (e.g., VTVS8V5BGSMSF-M3-08) or back-to-back configuration is required; using VTVS8V5GSMF-M3-08 alone would leave negative transients unprotected.
VTVS8V5GSMF-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):
- 8.5V
- Voltage - Breakdown (Min):
- 9.8V
- Voltage - Clamping (Max) @ Ipp:
- 13.5V
- Current - Peak Pulse (10/1000µs):
- 29.1A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 1270pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS8V5GSMF-M3-08 FAQ
1.How can I place an order for VTVS8V5GSMF-M3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS8V5GSMF-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 VTVS8V5GSMF-M3-08 reliable?
The price and inventory of VTVS8V5GSMF-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 VTVS8V5GSMF-M3-08 is usually 5 days.
3.What payment methods are accepted for VTVS8V5GSMF-M3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS8V5GSMF-M3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS8V5GSMF-M3-08?
VTVS8V5GSMF-M3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS8V5GSMF-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 VTVS8V5GSMF-M3-08?
For technical support, including VTVS8V5GSMF-M3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS8V5GSMF-M3-08 requirements.
6.How does Aetrix verify that VTVS8V5GSMF-M3-08 is sourced from the original manufacturer or authorized distributors?
All VTVS8V5GSMF-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 VTVS8V5GSMF-M3-08 meets industry standards.
7.What is the process for return or replacement of VTVS8V5GSMF-M3-08?
All VTVS8V5GSMF-M3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS8V5GSMF-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 VTVS8V5GSMF-M3-08 part is unused and in its original packaging.
Return procedure for VTVS8V5GSMF-M3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS8V5GSMF-M3-08 Tags

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