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Vishay General Semiconductor - Diodes Division VTVS52ASMF-M3-18
- Part No.:
- VTVS52ASMF-M3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS52ASMF-M3-18.pdf
- Description:
- TVS DIODE 52.2VWM 89VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,710
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Product details
Overview
VTVS52ASMF-M3-18 from Vishay Semiconductors is a unidirectional 400 W TransZorb® transient voltage suppressor diode in SMF (DO-219AB) package, designed for ESD and surge protection on DC power rails and signal lines. It features a 52.2 V maximum stand-off voltage (VRWM), 58.9–65.1 V reverse breakdown voltage (VBR) at 1 mA, 89 A peak pulse current (IPPM) under 10/1000 μs waveform, and clamps to ≤89 V at rated current - used in automotive infotainment power inputs and industrial sensor interfaces.
For engineers reviewing the VTVS52ASMF-M3-18 datasheet, VTVS52ASMF-M3-18 pinout, VTVS52ASMF-M3-18 application, or VTVS52ASMF-M3-18 equivalent, key selection criteria include its ±5 % VBR tolerance, 242 pF typical junction capacitance at 0 V, AEC-Q101 qualification option, low-profile SOD-123W-compatible footprint, and IEC 61000-4-2 ±30 kV contact/air discharge compliance.
Technical Context
This TVS diode operates as a unidirectional clamping device with avalanche breakdown behavior, optimized for fast response (<1 ns) and low clamping ratio (VC/VBR ≈ 1.37). Its thermal resistance (RthJL = 20 K/W) supports high-reliability operation up to TJ = +175 °C, and it meets halogen-free and RoHS-compliant material requirements per Vishay's eSMP® Series standards.
The SMF package enables wave and reflow soldering compatibility, with MSL level 1 moisture sensitivity and peak reflow temperature rating of 260 °C. Its 1.08 mm height and 3.9 × 1.9 mm outline align with SOD-123W mechanical constraints, enabling drop-in replacement in space-constrained PCB layouts without redesign.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W (10/1000 μs waveform) - sustains repeated surge events in automotive and industrial environments without degradation |
| Stand-off Voltage (VRWM) | 52.2 V max - blocks normal operating voltage while remaining non-conductive below breakdown threshold |
| Breakdown Voltage (VBR) | 58.9–65.1 V at IT = 1 mA - tight ±5 % tolerance ensures predictable turn-on across temperature and production lots |
| Clamping Voltage (VC) | ≤89 V at IPPM = 89 A - limits downstream voltage stress during transients to protect sensitive ICs |
| Junction Capacitance | 242 pF at VR = 0 V, f = 1 MHz - suitable for low-speed data lines and power rails; not recommended for >10 Mbps USB/CAN |
| ESD Rating | ±30 kV contact & air discharge per IEC 61000-4-2 - exceeds Level 4 immunity for front-panel and connector interfaces |
| Operating Temperature | −55 °C to +175 °C - qualified for under-hood automotive and industrial control cabinet applications |
Pinout & Package
SMF (DO-219AB) package: low-profile surface-mount case with cathode marking bar; compatible with SOD-123W footprint and automated assembly processes. Dimensions: 3.9 mm × 1.9 mm × 1.08 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Current entry terminal during forward conduction | Connected to protected line (e.g., VBUS or signal); must be routed with low-inductance trace for effective clamping |
| Cathode (Pin 2) | Current exit terminal; marked with bar on top surface | Connected to ground or lower-potential rail; defines unidirectional clamping direction from line-to-ground |
Key Features
| Feature | Design Value |
|---|---|
| "Low-Noise" fast-response technology | Sub-nanosecond response time enables suppression before sensitive ICs experience overvoltage damage |
| AEC-Q101 qualification option | Validated for automotive-grade reliability including HTOL, TC, and ESD stress testing per JESD22 standards |
| Halogen-free & RoHS-compliant molding compound | Meets automotive and industrial environmental compliance mandates without compromising thermal performance |
| Wave and reflow solderable | Compatible with standard SMT processes up to 260 °C peak, eliminating need for special thermal profiles |
| MSL level 1 rating | No dry-pack or baking required prior to assembly - reduces manufacturing overhead and handling risk |
Applications
| Automotive Infotainment Power Input | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: 12 V battery-supplied head unit power rail exposed to load dump and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between input fuse and DC-DC converter input. Use Value: Limits transients to ≤89 V, preventing damage to 40 V-rated input capacitors and PMICs. |
Use Scenario: 4–20 mA analog current loop interface in factory automation PLC modules. IC Role / Device Role / Timing Role: Line-to-ground transient suppressor on transmitter output pins. Use Value: Maintains signal integrity during ESD events while adding only 242 pF loading to low-bandwidth loop. |
| Telecom Power Adapter Interface | Medical Diagnostic Equipment Front Panel |
Use Scenario: Secondary-side 52 V DC output of isolated AC/DC adapter connected to PoE-powered devices. IC Role / Device Role / Timing Role: Standoff-rated TVS protecting downstream Ethernet PHY power pins. Use Value: 52.2 V VRWM ensures no leakage during nominal operation; clamps 100 V surges within safe margin. |
Use Scenario: Keypad and display connector on portable ultrasound scanner subject to clinical ESD exposure. IC Role / Device Role / Timing Role: Board-level ESD protector on low-voltage I²C and GPIO lines. Use Value: ±30 kV IEC 61000-4-2 rating meets IEC 60601-1-2 medical EMC requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ51A-E3/5A (Vishay) | Same SMF package, but 51 V VRWM, 57.3–62.7 V VBR (±5 %), 92 A IPPM, 93.6 V VC - slightly lower clamping ratio | Better suited for 48 V systems with tighter margin; higher IPPM allows longer surge duration tolerance | Select when system VRWM is ≤51 V and clamping headroom below 94 V is critical |
| TPSMD51A (Texas Instruments) | DO-214AB (SMC) package, 51 V VRWM, 57.3–62.7 V VBR, 92 A IPPM, 93.6 V VC - larger footprint, higher RthJA | Higher thermal mass supports higher average power; less suitable for ultra-thin designs due to 2.3 mm height | Choose when board space permits larger package and enhanced thermal dissipation is prioritized over profile |
Compared with VTVS52ASMF-M3-18, SMAJ51A-E3/5A offers tighter clamping at lower VRWM but requires layout adjustment for identical standoff; TPSMD51A delivers equivalent electrical performance in a thermally robust but taller package incompatible with height-constrained assemblies.
Availability
VTVS52ASMF-M3-18 is available at Aetrix Electronics and suitable for automotive infotainment, industrial sensor interfaces, telecom power adapters, and medical front-panel ESD protection requiring stable component supply and long-term lifecycle support.
Supply support for VTVS52ASMF-M3-18 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 diodes, MOSFETs, optoelectronics, and passive components for automotive, industrial, and computing markets.
The eSMP® Series, including VTVS52ASMF-M3-18, is engineered for compact, high-power transient suppression in harsh environments - emphasizing AEC-Q101 readiness, low-profile packaging, and consistent clamping performance across temperature.
FAQ
What is the maximum working voltage supported by VTVS52ASMF-M3-18?
VTVS52ASMF-M3-18 has a maximum stand-off voltage (VRWM) of 52.2 V, meaning it remains non-conductive up to this DC or RMS voltage level. This makes it suitable for 48 V nominal systems where transient margins require ≥52 V blocking capability without leakage current exceeding 0.05 μA.
Is VTVS52ASMF-M3-18 AEC-Q101 qualified?
VTVS52ASMF-M3-18 is offered in an AEC-Q101-qualified version (e.g., VTVS52ASMF-HM3-18), but the base part number VTVS52ASMF-M3-18 itself is not automatically qualified. Engineers must specify the "H" environmental code to receive the automotive-grade variant with full stress test documentation.
What does the "M3-18" suffix indicate in VTVS52ASMF-M3-18?
The "M3" denotes lead (Pb)-free, RoHS-compliant tin plating and 3 k per 7″ reel packaging; "-18" specifies halogen-free molding compound per Vishay's material categorization standard. This suffix confirms compliance with environmental directives without altering electrical or thermal specs of VTVS52ASMF-M3-18.
Can VTVS52ASMF-M3-18 be used in bidirectional protection circuits?
No - VTVS52ASMF-M3-18 is a unidirectional TVS diode, intended for line-to-ground clamping only. For bidirectional protection (e.g., data lines with AC signals), a dedicated bidirectional part such as VTVS52BSMF-M3-18 or dual-diode array configuration is required; using VTVS52ASMF-M3-18 in reverse-biased mode risks permanent breakdown.
How does the 242 pF junction capacitance of VTVS52ASMF-M3-18 affect circuit performance?
The 242 pF typical capacitance at 0 V bias adds minimal loading to DC power rails but may attenuate high-frequency signals above ~1 MHz. In VTVS52ASMF-M3-18 applications, this value is acceptable for <100 kHz analog sensing or 12 V power bus protection, but unsuitable for USB 2.0, CAN FD, or HDMI signal lines where sub-5 pF is typically required.
VTVS52ASMF-M3-18 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):
- 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-M3-18 FAQ
1.How can I place an order for VTVS52ASMF-M3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS52ASMF-M3-18 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 VTVS52ASMF-M3-18 reliable?
The price and inventory of VTVS52ASMF-M3-18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VTVS52ASMF-M3-18 is usually 5 days.
3.What payment methods are accepted for VTVS52ASMF-M3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS52ASMF-M3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS52ASMF-M3-18?
VTVS52ASMF-M3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS52ASMF-M3-18 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 VTVS52ASMF-M3-18?
For technical support, including VTVS52ASMF-M3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS52ASMF-M3-18 requirements.
6.How does Aetrix verify that VTVS52ASMF-M3-18 is sourced from the original manufacturer or authorized distributors?
All VTVS52ASMF-M3-18 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 VTVS52ASMF-M3-18 meets industry standards.
7.What is the process for return or replacement of VTVS52ASMF-M3-18?
All VTVS52ASMF-M3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS52ASMF-M3-18, 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 VTVS52ASMF-M3-18 part is unused and in its original packaging.
Return procedure for VTVS52ASMF-M3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS52ASMF-M3-18 Tags
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