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Vishay General Semiconductor - Diodes Division VTVS52ASMF-HM3-18
- Part No.:
- VTVS52ASMF-HM3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS52ASMF-HM3-18.pdf
- Description:
- TVS DIODE 52.2VWM 89VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,829
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Product details
Overview
VTVS52ASMF-HM3-18 from Vishay Semiconductors is a unidirectional 400 W TransZorb® transient voltage suppressor diode in SMF (DO-219AB) package, with 52.2 V maximum stand-off voltage (VRWM), 58.9–65.1 V reverse breakdown voltage (VBR) at 1 mA, and 89 A peak pulse current (IPPM) under 10/1000 μs waveform - designed for ESD and surge protection of automotive power-line interfaces.
For engineers reviewing the VTVS52ASMF-HM3-18 datasheet, VTVS52ASMF-HM3-18 pinout, VTVS52ASMF-HM3-18 application, or VTVS52ASMF-HM3-18 equivalent, this device delivers ±30 kV IEC 61000-4-2 contact/air discharge immunity, low 242 pF junction capacitance at 0 V, and AEC-Q101 qualification for under-hood electronics requiring robust clamping at high working voltages.
Technical Context
This TVS diode operates as a unidirectional clamping device, leveraging avalanche breakdown to limit transient overvoltages on DC power rails. Its 20 K/W thermal resistance (RthJL) enables effective heat dissipation when mounted on infinite heatsink, and its 175 °C maximum junction temperature supports operation in harsh automotive environments.
The device features "Low-Noise" technology with fast response time, achieving 89 V maximum reverse clamping voltage (VC) at 89 A IPPM, and maintains <0.05 μA leakage current at VRWM - critical for low-power always-on circuits where standby current budget is constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W (10/1000 μs waveform) - sustains high-energy transients without failure in automotive load-dump or ISO 7637-2 pulse 5a scenarios |
| Stand-off Voltage (VRWM) | 52.2 V - sets maximum continuous operating voltage before clamping initiates; matches 48 V system nominal rails |
| Breakdown Voltage (VBR) | 58.9–65.1 V at IT = 1 mA - tight ±5 % tolerance ensures predictable turn-on across temperature and unit variation |
| Clamping Voltage (VC) | 89 V at IPPM = 89 A - defines worst-case voltage seen by protected IC during surge; enables safe margin for 75 V-rated components |
| Junction Capacitance | 242 pF at VR = 0 V, f = 1 MHz - low enough for CAN FD or LIN bus protection without signal integrity degradation |
| ESD Rating | ±30 kV contact / ±30 kV air (IEC 61000-4-2) - exceeds automotive OEM requirements for human-body-model robustness |
| Operating Temperature | −55 °C to +175 °C - qualified for engine compartment placement per AEC-Q101 Grade 0 |
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 | Ground reference terminal | Connected to system ground or low-side return path; forms clamping loop with cathode |
| Cathode | Protected line input | Connected to power rail or signal line being protected; avalanche conduction occurs from cathode to anode during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive Grade 0 (−55 °C to +175 °C) - supports deployment in powertrain and chassis modules without derating |
| Halogen-free & RoHS-compliant | Meets JESD201 class 2 whisker testing and UL 94 V-0 flammability - satisfies Tier 1 environmental compliance mandates |
| Wave and reflow solderable | Rated for peak reflow temperature up to 260 °C - compatible with standard Pb-free assembly processes |
| Low-profile SMF package | Height ≤1.08 mm - enables placement in space-constrained locations such as fuse box PCBs or battery management sensors |
| MSL Level 1 rating | No dry-pack or baking required before assembly - reduces manufacturing overhead and handling risk |
Applications
| Automotive Power Distribution | 48 V Mild Hybrid Systems |
|---|---|
|
Use Scenario: Protection of 48 V supply lines feeding DC-DC converters and motor drivers in P0/P1 hybrid architectures. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed upstream of input capacitors to absorb ISO 16750-2 load-dump pulses. Use Value: Withstands 400 W surges while maintaining 52.2 V VRWM - avoids false triggering during normal 48 V rail ripple and ensures reliable shutdown during 120 V transients. |
Use Scenario: Surge suppression on bidirectional 48 V bus interconnects between starter-generator and battery management unit. IC Role / Device Role / Timing Role: Standoff-clamp protector on high-current power paths subject to switching transients and coupling noise. Use Value: 89 V VC at 89 A limits voltage overshoot below 90 V threshold of SiC MOSFET gate drivers - prevents unintended turn-on or latch-up. |
| Engine Control Unit (ECU) Power Input | Onboard Charger (OBC) Input Stage |
|
Use Scenario: Input rail protection for engine control modules exposed to alternator-induced spikes and cranking transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main 12/48 V input, coordinated with upstream fuse and downstream L-C filter. Use Value: −55 °C to +175 °C operating range and AEC-Q101 qualification ensure reliability across full vehicle lifecycle without thermal drift-induced failure. |
Use Scenario: Front-end transient protection for AC/DC and DC/DC stages in EV onboard chargers connected to external grid sources. IC Role / Device Role / Timing Role: Secondary-level clamping after MOV-based primary protection, handling residual fast-rising spikes. Use Value: 242 pF capacitance minimizes impact on 100 kHz–1 MHz switching node stability; 400 W rating handles repetitive surge events during plug/unplug cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ58A-E3/5A (Vishay) | Same DO-214AC (SMA) package; 58 V VRWM; 400 W rating; ±5 % VBR tolerance; higher 270 pF capacitance | Larger footprint (4.5 mm × 2.7 mm); less suitable for ultra-dense 48 V board layouts | Select when legacy SMA layout exists or when higher thermal mass is needed for extended surge duty cycles |
| TPSMD58A (Texas Instruments) | DO-214AB (SMC) package; 58 V VRWM; 500 W rating; ±5 % VBR; 220 pF capacitance; no AEC-Q101 qualification | Higher power handling but lacks automotive qualification; larger 7.1 mm × 6.2 mm body | Prefer for industrial 48 V systems where AEC-Q101 is not mandated and higher single-pulse energy absorption is required |
Compared with SMAJ58A-E3/5A and TPSMD58A, the VTVS52ASMF-HM3-18 offers optimal balance of compact DO-219AB size, AEC-Q101 compliance, and precise 52.2 V standoff - making it the preferred choice for new 48 V automotive designs prioritizing space, qualification, and system-level ESD robustness.
Availability
VTVS52ASMF-HM3-18 is available at Aetrix Electronics and suitable for automotive power distribution, 48 V mild hybrid systems, and engine control unit (ECU) input protection requiring stable component supply and long-term lifecycle support.
Supply support for VTVS52ASMF-HM3-18 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 VTVS eSMP® Series targets automotive-grade transient suppression with AEC-Q101 qualification, low-profile packaging, and tightly controlled clamping parameters - engineered specifically for next-generation 12 V, 48 V, and dual-voltage vehicle architectures.
FAQ
What is the maximum clamping voltage of the VTVS52ASMF-HM3-18 under peak pulse conditions?
The VTVS52ASMF-HM3-18 has a maximum reverse clamping voltage (VC) of 89 V at 89 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured per standard test conditions and defines the upper voltage limit imposed on protected circuitry during surge events. The VTVS52ASMF-HM3-18 maintains this clamping performance across its full operating temperature range, ensuring consistent protection in under-hood environments.
Is the VTVS52ASMF-HM3-18 qualified for automotive use?
Yes, the VTVS52ASMF-HM3-18 is AEC-Q101 qualified for automotive applications, rated for junction temperatures from −55 °C to +175 °C (Grade 0). It meets stringent stress-test requirements including HTOL, temperature cycling, and ESD immunity, and is widely deployed in powertrain, body control, and ADAS modules. The VTVS52ASMF-HM3-18 carries full qualification documentation traceable to Vishay's certified test labs.
What package type does the VTVS52ASMF-HM3-18 use, and is it compatible with automated assembly?
The VTVS52ASMF-HM3-18 uses the SMF (DO-219AB) package - a low-profile, halogen-free surface-mount case measuring 3.9 mm × 1.9 mm × 1.08 mm. It is fully compatible with wave and reflow soldering, rated for peak reflow temperatures up to 260 °C, and carries MSL Level 1 moisture sensitivity rating. The VTVS52ASMF-HM3-18 is supplied on 8 mm tape-and-reel (10K per 13″ reel), supporting high-speed pick-and-place operations without special handling.
How does the VTVS52ASMF-HM3-18 perform in ESD-sensitive applications?
The VTVS52ASMF-HM3-18 provides ±30 kV contact and ±30 kV air discharge ESD protection per IEC 61000-4-2, exceeding common automotive and industrial requirements. Its fast "Low-Noise" avalanche response ensures sub-nanosecond turn-on, limiting voltage overshoot before sensitive downstream ICs are stressed. The VTVS52ASMF-HM3-18 achieves this while maintaining only 242 pF junction capacitance - minimizing signal distortion on data lines sharing the same power domain.
What is the leakage current specification for the VTVS52ASMF-HM3-18 at its maximum working voltage?
At its maximum stand-off voltage (VRWM) of 52.2 V and ambient temperature of 25 °C, the VTVS52ASMF-HM3-18 exhibits a maximum reverse leakage current (IR) of 0.05 μA. This ultralow leakage preserves battery life in always-on automotive subsystems such as telematics and remote keyless entry receivers. The VTVS52ASMF-HM3-18 maintains leakage below 1 μA even at 125 °C, ensuring reliability across full operational range.
VTVS52ASMF-HM3-18 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:
- -
- Capacitance @ Frequency:
- 242pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS52ASMF-HM3-18 FAQ
1.How can I place an order for VTVS52ASMF-HM3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS52ASMF-HM3-18 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-HM3-18 reliable?
The price and inventory of VTVS52ASMF-HM3-18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VTVS52ASMF-HM3-18 is usually 5 days.
3.What payment methods are accepted for VTVS52ASMF-HM3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS52ASMF-HM3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS52ASMF-HM3-18?
VTVS52ASMF-HM3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS52ASMF-HM3-18 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-HM3-18?
For technical support, including VTVS52ASMF-HM3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS52ASMF-HM3-18 requirements.
6.How does Aetrix verify that VTVS52ASMF-HM3-18 is sourced from the original manufacturer or authorized distributors?
All VTVS52ASMF-HM3-18 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-HM3-18 meets industry standards.
7.What is the process for return or replacement of VTVS52ASMF-HM3-18?
All VTVS52ASMF-HM3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS52ASMF-HM3-18, 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-HM3-18 part is unused and in its original packaging.
Return procedure for VTVS52ASMF-HM3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS52ASMF-HM3-18 Tags
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