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Vishay General Semiconductor - Diodes Division VTVS52ASMF-M3-08
- Part No.:
- VTVS52ASMF-M3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS52ASMF-M3-08.pdf
- Description:
- TVS DIODE 52.2VWM 89VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:26,546
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Product details
Overview
VTVS52ASMF-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 52.2 V maximum stand-off voltage (VRWM), 58.9–65.1 V reverse breakdown voltage (VBR) at 1 mA, and clamps to ≤89 V at 4.28 A peak pulse current under 10/1000 μs waveform.
For engineers reviewing the VTVS52ASMF-M3-08 datasheet, VTVS52ASMF-M3-08 pinout, VTVS52ASMF-M3-08 application, or VTVS52ASMF-M3-08 equivalent, this device is selected for robust ±30 kV IEC 61000-4-2 ESD protection, low-profile SMT integration in space-constrained automotive and industrial PCBs, and stable clamping performance up to +175 °C junction temperature.
Technical Context
This TVS diode operates in avalanche mode with precise ±5 % VBR tolerance and exhibits fast response time enabled by "Low-Noise" technology. Its unidirectional polarity and single-channel protection path are optimized for DC rail protection where reverse conduction must be blocked during normal operation.
The device delivers 400 W peak pulse power handling per IEC 61000-4-5 (10/1000 μs), maintains <0.05 μA leakage at VRWM, and achieves thermal resistance of 20 K/W (junction-to-lead) when mounted on an infinite heat sink - enabling reliable operation in high-temperature automotive under-hood environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W (IEC 61000-4-5 10/1000 μs waveform; sustains surge energy without failure) |
| Stand-off Voltage (VRWM) | 52.2 V (maximum continuous reverse working voltage before significant leakage) |
| Breakdown Voltage (VBR) | 58.9–65.1 V at IT = 1 mA (tight ±5 % tolerance ensures predictable turn-on threshold) |
| Clamping Voltage (VC) | ≤89 V at IPPM = 4.28 A (limits transient voltage seen by downstream ICs) |
| ESD Rating | ±30 kV contact & air discharge (IEC 61000-4-2 compliant; protects against human-body-model events) |
| Junction Temperature Range | −55 °C to +175 °C (supports automotive under-hood and industrial high-temp deployments) |
| Capacitance (CD) | 242 pF at VR = 0 V, f = 1 MHz (low enough for USB 2.0 signal integrity; not suitable for >480 Mbps) |
Pinout & Package
SMF (DO-219AB) low-profile surface-mount package: 3.9 mm × 1.9 mm × 1.08 mm, halogen-free molding compound, MSL level 1, wave/reflow solderable. Cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during clamping | Connected to protected line (e.g., USB D+); conducts transient current to ground when VC exceeded |
| Cathode | Current exit during clamping | Connected to system ground; defines unidirectional conduction path and sets VRWM polarity |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power | Handles high-energy transients per IEC 61000-4-5 without degradation or parametric shift |
| ±5 % VBR tolerance | Ensures consistent clamping onset across production lots; reduces design margin uncertainty |
| ±30 kV ESD immunity | Meets highest IEC 61000-4-2 contact/air discharge levels for front-panel and connector protection |
| Low-profile SMF package | 1.08 mm height enables use in ultra-thin modules (e.g., ADAS cameras, infotainment displays) |
| AEC-Q101 qualified option | VTVS52ASMF-M3-08 variant is RoHS-compliant and lead-free; AEC-Q101 qualification available in HM3 variants |
Applications
| Automotive Sensor Interface | USB 2.0 Data Line Protection |
|---|---|
|
Use Scenario: Protecting LIN/CAN sensor nodes (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor signal line and chassis ground to clamp transients before reaching MCU analog input. Use Value: Maintains 52.2 V VRWM margin above 12 V nominal supply while clamping to ≤89 V, preventing ADC saturation and latch-up. |
Use Scenario: ESD protection for USB 2.0 D+/D− lines in automotive infotainment head units. IC Role / Device Role / Timing Role: Standoff diode shunting ESD strikes to ground without affecting 480 Mbps data integrity. Use Value: 242 pF capacitance and fast response preserve signal rise/fall times; ±30 kV rating exceeds USB-IF compliance requirements. |
| Industrial PLC Digital Input | DC Power Rail Surge Suppression |
|
Use Scenario: Protecting 24 V digital input channels in programmable logic controllers from field-wiring induced surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on optocoupler input side, absorbing 10/1000 μs transients up to 400 W. Use Value: 175 °C max junction temperature allows operation inside sealed enclosures without derating; 20 K/W RthJL supports thermal reliability. |
Use Scenario: Secondary surge suppression on 48 V DC power distribution bus in telecom remote radio units. IC Role / Device Role / Timing Role: Fast-acting clamping element placed after primary MOV or GDT, limiting let-through voltage to downstream DC-DC converters. Use Value: Tight 58.9–65.1 V VBR range ensures coordination with upstream protectors; 4.28 A IPPM provides defined energy-handling boundary. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ51A (Bourns) | Same VRWM (51 V), but SMB package (DO-214AA); 600 W Pppm; higher VC (93.6 V @ 5.8 A) | Larger footprint (4.58 × 3.94 mm); less suitable for ultra-thin designs | Select when higher surge rating is prioritized over board space; verify layout clearance for larger body |
| TPSMD51A (Texas Instruments) | 51 V VRWM, 600 W Pppm, 93.6 V VC @ 5.8 A; AEC-Q101 qualified standard | Requires AEC-Q101 validation for automotive; tighter process control but no ±5 % VBR option | Prefer for new automotive designs requiring full AEC-Q101 certification out-of-box; VTVS52ASMF-M3-08 offers tighter VBR tolerance |
Compared with SMBJ51A and TPSMD51A, VTVS52ASMF-M3-08 provides superior VBR tolerance control (±5 % vs. typical ±10 %), lower profile (1.08 mm vs. ≥2.3 mm), and verified 242 pF capacitance - making it optimal for compact, high-reliability DC interface protection where precise clamping onset and minimal board area are critical.
Availability
VTVS52ASMF-M3-08 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 traceable sourcing.
Supply support for VTVS52ASMF-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 passive components for automotive, industrial, and computing markets.
The TransZorb® eSMP® Series - including VTVS52ASMF-M3-08 - is engineered for robust transient suppression in harsh environments, with emphasis on AEC-Q101 readiness, low-profile packaging, and precise parametric control.
FAQ
What is the maximum clamping voltage of the VTVS52ASMF-M3-08 under standard test conditions?
The VTVS52ASMF-M3-08 has a maximum reverse clamping voltage (VC) of 89 V when subjected to its rated peak pulse current of 4.28 A using the 10/1000 μs waveform. This value is measured at the device terminals and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is the VTVS52ASMF-M3-08 suitable for automotive applications requiring AEC-Q101 qualification?
The VTVS52ASMF-M3-08 itself is RoHS-compliant and lead-free, but AEC-Q101 qualification is available only in the HM3 variant (e.g., VTVS52ASMF-HM3-08). Engineers specifying VTVS52ASMF-M3-08 for automotive use must confirm qualification status with Vishay's latest datasheet revision or consult Aetrix Electronics for certified AEC-Q101 stock options.
How does the 242 pF capacitance of the VTVS52ASMF-M3-08 affect high-speed signal lines?
The 242 pF typical capacitance of the VTVS52ASMF-M3-08 limits its use to signals below ~20 MHz; it is appropriate for USB 2.0 (480 Mbps) and CAN FD (5 Mbps) but unsuitable for USB 3.0, HDMI, or PCIe. For VTVS52ASMF-M3-08, this capacitance represents a deliberate trade-off between surge energy handling and signal integrity - verified in Vishay's application notes for sensor and industrial bus protection.
What is the thermal resistance specification for the VTVS52ASMF-M3-08, and how does it impact PCB layout?
The VTVS52ASMF-M3-08 has a junction-to-lead thermal resistance (RthJL) of 20 K/W when mounted on an infinite heat sink. In real PCB layouts, this means copper pour area under the cathode pad and thermal vias to inner ground planes directly influence sustained power dissipation capability. Layouts for VTVS52ASMF-M3-08 should follow Vishay's recommended footprint (1.3 mm × 1.3 mm pads, 2.9 mm center-to-center) to maintain thermal performance.
Can the VTVS52ASMF-M3-08 be used in bidirectional protection configurations?
No - the VTVS52ASMF-M3-08 is a unidirectional TVS diode, intended only for DC line protection where reverse polarity is blocked during normal operation. Bidirectional protection requires either two VTVS52ASMF-M3-08 devices in series opposition or a dedicated bidirectional part like VTVS52BSMF-M3-08. Using VTVS52ASMF-M3-08 in reverse-biased configuration risks premature breakdown and failure.
VTVS52ASMF-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):
- 52.2V
- Voltage - Breakdown (Min):
- 58.9V
- Voltage - Clamping (Max) @ Ipp:
- 89V
- Current - Peak Pulse (10/1000µs):
- 4.28A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 242pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS52ASMF-M3-08 FAQ
1.How can I place an order for VTVS52ASMF-M3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS52ASMF-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 VTVS52ASMF-M3-08 reliable?
The price and inventory of VTVS52ASMF-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 VTVS52ASMF-M3-08 is usually 5 days.
3.What payment methods are accepted for VTVS52ASMF-M3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS52ASMF-M3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS52ASMF-M3-08?
VTVS52ASMF-M3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS52ASMF-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 VTVS52ASMF-M3-08?
For technical support, including VTVS52ASMF-M3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS52ASMF-M3-08 requirements.
6.How does Aetrix verify that VTVS52ASMF-M3-08 is sourced from the original manufacturer or authorized distributors?
All VTVS52ASMF-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 VTVS52ASMF-M3-08 meets industry standards.
7.What is the process for return or replacement of VTVS52ASMF-M3-08?
All VTVS52ASMF-M3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS52ASMF-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 VTVS52ASMF-M3-08 part is unused and in its original packaging.
Return procedure for VTVS52ASMF-M3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS52ASMF-M3-08 Tags
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