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Vishay General Semiconductor - Diodes Division P6SMB540AHM3_A/H
- Part No.:
- P6SMB540AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB540AHM3_A/H.pdf
- Description:
- TVS DIODE 459VWM 740VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,172
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Product details
Overview
P6SMB540AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 540 V breakdown voltage (VBR = 513–567 V at IT = 1.0 mA), 600 W peak pulse power (10/1000 μs), and clamping voltage of 740 V at IPPM. It protects high-voltage DC power rails and industrial sensor interfaces against lightning-induced surges and inductive switching transients.
For engineers reviewing the P6SMB540AHM3_A/H datasheet, P6SMB540AHM3_A/H pinout, P6SMB540AHM3_A/H application, or P6SMB540AHM3_A/H equivalent, this device is selected for robust overvoltage protection in automotive-grade power systems, telecom rectifier outputs, and HV industrial control inputs where AEC-Q101 qualification, low incremental surge resistance, and stable clamping under repetitive 0.01% duty cycle pulses are required.
Technical Context
This TVS operates as a unidirectional avalanche clamp with cathode-banded polarity, designed to conduct only during reverse overvoltage events while remaining high-impedance under normal operating conditions up to 459 V stand-off (VWM). Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response time (<1.0 ns).
Thermally, it features RθJA = 100 °C/W and RθJL = 20 °C/W, enabling reliable operation up to TJ = +150 °C. The HM3 suffix confirms halogen-free, RoHS-compliant construction and AEC-Q101 qualification per revision D for high-reliability automotive applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 513 V / 567 V at IT = 1.0 mA - defines precise avalanche onset window for predictable clamping threshold |
| VWM | 459 V - maximum continuous reverse working voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 740 V at IPPM = 0.81 A - clamping voltage limiting transient energy delivered to protected circuit |
| PPPM | 600 W (10/1000 μs waveform) - peak surge handling capacity under standardized lightning/surge test condition |
| IFSM | 100 A (8.3 ms half-sine) - surge current rating for unidirectional forward conduction during fault recovery |
| TJ max. | +150 °C - maximum junction temperature supporting operation in under-hood or enclosed industrial environments |
| Package | SMB (DO-214AA) - surface-mount footprint with 0.220" × 0.205" pad layout, MSL Level 1, LF peak 260 °C |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; cathode indicated by band on one end; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or low-side return path; conducts during forward surge (e.g., reverse battery protection) |
| Cathode | Avalanche clamping terminal | Connected to protected line; enters breakdown when reverse voltage exceeds VBR, shunting surge current to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (HM3_D) | Validated for automotive powertrain and chassis applications requiring zero-failure reliability under thermal cycling and vibration |
| 600 W peak pulse power (10/1000 μs) | Withstands IEC 61000-4-5 Level 4 surge (4 kV line-earth) without degradation when properly mounted |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes let-through voltage to protect downstream MOSFETs and controllers with tight VDS margins |
| Halogen-free & RoHS-compliant (HM3) | Meets EU ELV and JEDEC J-STD-204E requirements for green manufacturing and end-of-life recycling |
| MSL Level 1, 260 °C reflow compatible | Enables single-pass lead-free assembly without prebake or moisture sensitivity concerns |
Applications
| Automotive Power Rail Protection | Industrial HV DC Bus Clamping |
|---|---|
|
Use Scenario: Protecting 48 V and 400 V battery management system (BMS) input stages against load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between HV rail and chassis ground to clamp reverse-polarity and surge events within nanoseconds. Use Value: Prevents gate oxide rupture in SiC MOSFET drivers by limiting transient overshoot to ≤740 V under 600 W surge conditions. |
Use Scenario: Safeguarding PLC analog input modules connected to 240–600 V AC/DC field sensors exposed to EFT and surge coupling. IC Role / Device Role / Timing Role: Standoff protector on signal conditioning front-end, absorbing induced spikes before they reach precision ADCs or isolation amplifiers. Use Value: Maintains <1.0 μA leakage at 459 V, ensuring minimal offset error in high-impedance measurement paths. |
| Telecom Rectifier Output Protection | Renewable Energy Inverter DC Link |
|
Use Scenario: Shielding -48 V telecom rectifier outputs from lightning-induced common-mode surges entering via long feeder lines. IC Role / Device Role / Timing Role: Primary clamping device on output bus, coordinated with upstream MOVs to handle fast-rising edge transients. Use Value: Fast <1 ns response ensures clamping initiates before secondary protection triggers, reducing total let-through energy. |
Use Scenario: Protecting DC link capacitors and IGBT gate drivers in solar string inverters subjected to grid-switching transients. IC Role / Device Role / Timing Role: Parallel-connected TVS across DC+ and DC− rails to suppress voltage doubling events during rapid current interruption. Use Value: 740 V clamping voltage provides ≥100 V margin above nominal 600 V DC link, preventing unintended crowbar activation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ540A-E3/5B | Same VBR range (513–567 V), but SMA package (smaller footprint, lower IPPM = 0.75 A, VC = 770 V) | Limited to lower-energy surges; not AEC-Q101 qualified; unsuitable for automotive under-hood use | Select when board space is constrained and surge severity is below IEC 61000-4-5 Level 3 |
| 1.5SMC540A | Same electrical specs, but SMC (DO-214AB) package: larger body, higher thermal mass, RθJA = 60 °C/W | Better thermal performance in high-ambient environments; incompatible PCB footprint; no AEC-Q101 option | Choose for industrial power supplies needing enhanced thermal derating without layout change to SMB |
Compared with SMAJ540A-E3/5B and 1.5SMC540A, P6SMB540AHM3_A/H uniquely combines AEC-Q101 qualification, SMB footprint compatibility, and optimized clamping (740 V) for high-reliability automotive and industrial HV systems where both space and qualification matter.
Availability
P6SMB540AHM3_A/H is available at Aetrix Electronics and suitable for automotive battery management, industrial HV DC bus protection, and telecom rectifier output stabilization requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for P6SMB540AHM3_A/H 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 General Semiconductor designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on reliability, ruggedness, and application-specific optimization.
The P6SMB Series targets high-energy transient suppression in automotive, industrial, and telecom infrastructure, delivering standardized 600 W surge capability in compact SMB packages with AEC-Q101 and halogen-free variants.
FAQ
What is the maximum working voltage for P6SMB540AHM3_A/H?
The maximum DC reverse stand-off voltage (VWM) for P6SMB540AHM3_A/H is 459 V. This value ensures reverse leakage remains ≤1.0 μA under steady-state operation, making it suitable for 400 V nominal DC systems with safety margin. Exceeding 459 V risks premature conduction and accelerated wear.
Is P6SMB540AHM3_A/H AEC-Q101 qualified?
Yes, P6SMB540AHM3_A/H is AEC-Q101 qualified, as confirmed by the "HM3_D" suffix in its ordering code - indicating halogen-free, RoHS-compliant construction and full automotive stress testing per revision D. This qualification covers temperature cycling, mechanical shock, and HTRB validation.
What does the "_A/H" suffix mean in P6SMB540AHM3_A/H?
The "_A/H" suffix denotes packaging configuration: "A" indicates tape-and-reel delivery with 750 units per 7-inch reel, and "H" specifies the standard carrier tape width and sprocket hole pattern per EIA-481-D. This format ensures compatibility with high-speed pick-and-place equipment.
How does P6SMB540AHM3_A/H compare to bidirectional TVS diodes?
P6SMB540AHM3_A/H is unidirectional and intended for DC applications with defined polarity, such as positive-rail protection. Unlike bidirectional variants (e.g., P6SMB540CA), it blocks forward current until VF ≈ 3.5 V at 50 A, enabling use in reverse-polarity protection circuits where directional conduction is required.
What is the thermal resistance of P6SMB540AHM3_A/H?
P6SMB540AHM3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" copper pads per terminal, and junction-to-lead resistance (RθJL) of 20 °C/W. These values guide PCB copper area design to maintain TJ ≤ 150 °C under worst-case surge repetition.
P6SMB540AHM3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 459V
- Voltage - Breakdown (Min):
- 513V
- Voltage - Clamping (Max) @ Ipp:
- 740V
- Current - Peak Pulse (10/1000µs):
- 810mA
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB540AHM3_A/H FAQ
1.How can I place an order for P6SMB540AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB540AHM3_A/H 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 P6SMB540AHM3_A/H reliable?
The price and inventory of P6SMB540AHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB540AHM3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB540AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB540AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB540AHM3_A/H?
P6SMB540AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB540AHM3_A/H 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 P6SMB540AHM3_A/H?
For technical support, including P6SMB540AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB540AHM3_A/H requirements.
6.How does Aetrix verify that P6SMB540AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB540AHM3_A/H 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 P6SMB540AHM3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB540AHM3_A/H?
All P6SMB540AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB540AHM3_A/H, 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 P6SMB540AHM3_A/H part is unused and in its original packaging.
Return procedure for P6SMB540AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB540AHM3_A/H Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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