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Vishay General Semiconductor - Diodes Division VTVS10ASMF-M3-08
- Part No.:
- VTVS10ASMF-M3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS10ASMF-M3-08.pdf
- Description:
- TVS DIODE 10.3VWM 16.3VC DO219AB
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
VTVS10ASMF-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 a 10.3 V maximum stand-off voltage (VRWM), 11.4–12.7 V reverse breakdown voltage (VBR) at 1 mA, 16.3 V maximum clamping voltage (VC) at 23.2 A peak pulse current (IPPM), and ±30 kV IEC 61000-4-2 ESD immunity.
For engineers reviewing the VTVS10ASMF-M3-08 datasheet, VTVS10ASMF-M3-08 pinout, VTVS10ASMF-M3-08 application, or VTVS10ASMF-M3-08 equivalent, key selection criteria include clamping performance under 10/1000 μs transients, low capacitance (988 pF) for high-speed signal integrity, unidirectional polarity for DC rail protection, and AEC-Q101 qualification readiness in compatible variants.
Technical Context
This TVS diode operates as a unidirectional shunt protector, triggering into avalanche conduction when transient voltage exceeds its breakdown threshold. Its low thermal resistance (RthJL = 20 K/W) enables rapid heat dissipation during 400 W peak pulses, and its halogen-free molding compound complies with environmental standards while maintaining UL 94 V-0 flammability rating.
The device delivers stable clamping response with <1 ns typical response time due to "Low-Noise" silicon technology, and supports wave and reflow soldering per J-STD-020 MSL level 1 conditions (peak 260 °C). Its 988 pF junction capacitance is measured at 0 V and 1 MHz, making it suitable for data lines up to ~50 Mbps without excessive signal distortion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W (10/1000 μs waveform - sustains automotive load-dump and ISO 7637-2 pulse 1/2/5a surges) |
| Stand-off Voltage (VRWM) | 10.3 V max - blocks normal operation up to this DC voltage without leakage |
| Breakdown Voltage (VBR) | 11.4–12.7 V at IT = 1 mA - precise avalanche onset ensures predictable turn-on margin |
| Clamping Voltage (VC) | 16.3 V at IPPM = 23.2 A - limits downstream IC voltage stress during worst-case transients |
| Junction Capacitance (CD) | 988 pF at VR = 0 V, f = 1 MHz - balances ESD robustness and signal integrity for medium-speed interfaces |
| ESD Rating | ±30 kV contact / ±30 kV air (IEC 61000-4-2) - exceeds industrial and automotive ESD immunity requirements |
| Operating Temperature | −55 °C to +175 °C - supports under-hood automotive and industrial environments |
Pinout & Package
SMF (DO-219AB) low-profile surface-mount package: 3.9 mm × 1.9 mm × 1.08 mm, halogen-free, MSL level 1, compatible with SOD-123W footprint. Cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path | Connected to ground or low-impedance reference; completes clamping loop during overvoltage events |
| Cathode | Protected line connection | Connected to the line being protected (e.g., USB D+, CAN_H); conducts avalanche current to anode when VR > VBR |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power | Withstands high-energy transients like ISO 7637-2 pulse 5a without degradation |
| ±5 % VBR tolerance (A-suffix) | Ensures consistent clamping threshold across production lots for reliable system-level margining |
| 988 pF capacitance | Minimizes signal rise-time distortion on 10–50 Mbps serial buses (e.g., LIN, SENT, legacy CAN) |
| Reflow/wave solder compatible | Supports standard SMT assembly without special process adjustments or thermal derating |
| AEC-Q101 qualification option | Variant VTVS10ASMF-HM3-08 meets automotive reliability testing for front-end electronics |
Applications
| Automotive Sensor Interface | Industrial Serial Bus Protection |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure, temperature, or position sensors in engine control modules. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between sensor output and ground to clamp ESD and load dump-induced spikes. Use Value: Maintains signal fidelity below 16.3 V clamping while surviving −55 °C to +175 °C ambient and ±30 kV ESD events. |
Use Scenario: Safeguarding RS-485 transceiver I/O pins in factory automation PLCs exposed to cable-borne surges. IC Role / Device Role / Timing Role: Standoff-rated TVS on differential bus lines to prevent latch-up or damage during 400 W transients. Use Value: 988 pF capacitance avoids skew or attenuation on 10–20 Mbps RS-485 links while delivering 23.2 A peak current handling. |
| USB 2.0 Data Line Protection | DC Power Rail Clamp |
|
Use Scenario: ESD protection for USB 2.0 D+ and D− lines in portable medical devices and docking stations. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS placed inline with each data line to ground. Use Value: Clamps ±30 kV contact discharge within 1 ns while adding <1% signal jitter at 480 Mbps full-speed operation. |
Use Scenario: Overvoltage suppression on 12 V auxiliary rails in infotainment head units and ADAS domain controllers. IC Role / Device Role / Timing Role: Primary clamping device parallel to input capacitor, triggered before downstream LDO or PMIC overvoltage shutdown. Use Value: Limits rail voltage to ≤16.3 V during 10/1000 μs surges, preventing brownout or permanent damage to 12 V logic supplies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A | Higher VRWM (10 V typ.), larger SMB package (4.5 × 3.9 mm), 600 W rating, 17.1 V VC at 32.4 A | Less suitable for space-constrained layouts; better for higher-energy surges where PCB area allows | Select when 600 W pulse handling is required and footprint size is not constrained. |
| TPSMD10A | Same DO-219AB package, but 10 V VRWM (tighter 10.0 V max), 11.1–12.3 V VBR, 16.7 V VC at 23.9 A, RoHS-only variant | Lower clamping voltage margin; optimized for cost-sensitive industrial designs without AEC-Q101 need | Choose for non-automotive applications requiring tighter VBR distribution and identical footprint. |
Compared with SMBJ10A and TPSMD10A, VTVS10ASMF-M3-08 offers the best balance of compact DO-219AB footprint, verified 400 W capability, and documented 988 pF capacitance-making it preferred for high-density, medium-speed interface protection where layout area and signal integrity are critical.
Availability
VTVS10ASMF-M3-08 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial serial bus protection, USB 2.0 data line safeguarding, and 12 V DC power rail clamping requiring stable component supply across extended temperature ranges and high-reliability manufacturing.
Supply support for VTVS10ASMF-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 VTVS eSMP® Series targets board-level ESD and surge protection with optimized trade-offs among clamping voltage, capacitance, and package size-designed specifically for next-generation automotive ECUs and high-speed industrial interfaces.
FAQ
What is the maximum clamping voltage of VTVS10ASMF-M3-08 under a 10/1000 μs transient?
The VTVS10ASMF-M3-08 has a maximum reverse clamping voltage (VC) of 16.3 V when subjected to its rated peak pulse current of 23.2 A under the 10/1000 μs waveform. This value is guaranteed per Vishay's datasheet Rev. 2.2 and defines the upper voltage limit imposed on protected circuitry during surge events. The VTVS10ASMF-M3-08 maintains this clamping performance across its full operating temperature range of −55 °C to +175 °C.
Is VTVS10ASMF-M3-08 AEC-Q101 qualified?
VTVS10ASMF-M3-08 itself is not AEC-Q101 qualified; however, the functionally identical variant VTVS10ASMF-HM3-08 is explicitly listed as AEC-Q101 qualified in Vishay's ordering table. The "H" suffix denotes automotive qualification, while the "M3-08" packaging code indicates 3 k per 7″ reel, halogen-free, lead (Pb)-free terminations. For automotive production, VTVS10ASMF-HM3-08 should be specified instead of VTVS10ASMF-M3-08.
What is the junction capacitance of VTVS10ASMF-M3-08 and how does it affect signal integrity?
The VTVS10ASMF-M3-08 exhibits a typical junction capacitance (CD) of 988 pF measured at 0 V bias and 1 MHz. This value directly impacts high-speed signal lines: at USB 2.0 full-speed (12 Mbps), it introduces negligible loading, but at higher frequencies (>50 Mbps), it may cause edge rounding or timing skew. Designers should verify eye diagram margins in their specific layout; for >100 Mbps interfaces, lower-capacitance TVS options are recommended. The VTVS10ASMF-M3-08 remains optimal for LIN, SENT, RS-485, and USB 2.0 applications.
Can VTVS10ASMF-M3-08 be used in bidirectional configurations?
No - VTVS10ASMF-M3-08 is a unidirectional TVS diode, intended only for DC circuits with defined polarity (e.g., protecting a positive rail to ground). Its electrical characteristics - including VBR, VRWM, and clamping behavior - are specified exclusively for forward-biased anode-to-cathode operation. For AC or bipolar signal lines (e.g., RS-485 differential pairs), a bidirectional variant such as VTVS10B or a dual-diode configuration must be used. Using VTVS10ASMF-M3-08 in reverse-biased mode risks premature conduction or failure.
What is the thermal resistance and maximum junction temperature of VTVS10ASMF-M3-08?
The VTVS10ASMF-M3-08 has a thermal resistance from junction to lead (RthJL) of 20 K/W when mounted on an infinite heat sink, and a maximum junction temperature (TJ) rating of +175 °C. Its storage temperature range matches: −55 °C to +175 °C. These ratings enable reliable operation in under-hood automotive environments and high-ambient industrial settings. Derating of peak power is not required up to +125 °C ambient if PCB copper area provides adequate heat spreading - confirmed by Vishay's thermal impedance curves in Figure 2 of the datasheet.
VTVS10ASMF-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):
- 10.3V
- Voltage - Breakdown (Min):
- 11.4V
- Voltage - Clamping (Max) @ Ipp:
- 16.3V
- Current - Peak Pulse (10/1000µs):
- 23.2A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 988pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS10ASMF-M3-08 FAQ
1.How can I place an order for VTVS10ASMF-M3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS10ASMF-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 VTVS10ASMF-M3-08 reliable?
The price and inventory of VTVS10ASMF-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 VTVS10ASMF-M3-08 is usually 5 days.
3.What payment methods are accepted for VTVS10ASMF-M3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS10ASMF-M3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS10ASMF-M3-08?
VTVS10ASMF-M3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS10ASMF-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 VTVS10ASMF-M3-08?
For technical support, including VTVS10ASMF-M3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS10ASMF-M3-08 requirements.
6.How does Aetrix verify that VTVS10ASMF-M3-08 is sourced from the original manufacturer or authorized distributors?
All VTVS10ASMF-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 VTVS10ASMF-M3-08 meets industry standards.
7.What is the process for return or replacement of VTVS10ASMF-M3-08?
All VTVS10ASMF-M3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS10ASMF-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 VTVS10ASMF-M3-08 part is unused and in its original packaging.
Return procedure for VTVS10ASMF-M3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS10ASMF-M3-08 Tags
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