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Vishay General Semiconductor - Diodes Division P6SMB540AHM3_C/I
- Part No.:
- P6SMB540AHM3_C/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB540AHM3_C/I.pdf
- Description:
- TVS DIODE 459VWM 740VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,038
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Product details
Overview
P6SMB540AHM3_C/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for high-energy surge protection on DC power rails and signal lines. It features a 540 V breakdown voltage (VBR = 513–567 V at IT = 1.0 mA), 459 V stand-off voltage (VWM), 740 V maximum clamping voltage (VC) at 0.81 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - suitable for automotive power supply rail protection per AEC-Q101.
For engineers reviewing the P6SMB540AHM3_C/I datasheet, P6SMB540AHM3_C/I pinout, P6SMB540AHM3_C/I application, or P6SMB540AHM3_C/I equivalent, this device delivers verified clamping performance under repetitive transients, supports automated SMT placement in high-reliability industrial and automotive PCBs, and meets MSL Level 1 with 260 °C reflow compatibility.
Technical Context
The P6SMB540AHM3_C/I operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its VBR threshold to clamp transient energy into ground. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at VWM), while the SMB (DO-214AA) package provides low thermal resistance (RθJL = 20 °C/W) for effective heat dissipation during surge events.
Designed for single-polarity DC systems, it exhibits fast response time (<1.0 ns), low incremental surge resistance, and repeatable clamping behavior under 0.01% duty cycle conditions. The HM3 suffix confirms halogen-free, RoHS-compliant construction with AEC-Q101 qualification - validated for automotive-grade reliability in engine control units and battery management interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 513 V / 567 V at 1.0 mA test current - defines precise avalanche initiation window for predictable clamping onset |
| VWM | 459 V - maximum continuous reverse operating voltage before leakage rises above 1.0 μA |
| VC @ IPPM | 740 V at 0.81 A - clamped voltage seen by protected circuit during full 600 W transient event |
| PPPM | 600 W with 10/1000 μs waveform - peak surge handling capacity for lightning and ESD-induced spikes |
| Junction Temp Range | −65 °C to +150 °C - enables operation in under-hood automotive environments and industrial enclosures |
| Package | SMB (DO-214AA) - standardized 2-pin surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height |
| AEC-Q101 Qualified | Yes (HM3 suffix) - qualified for automotive applications including powertrain and ADAS subsystems |
Pinout & Package
SMB (DO-214AA) package: molded plastic case with matte tin-plated leads, polarity indicated by cathode band on one end; terminals are anode and cathode - no internal circuitry or additional pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to system ground or low-impedance return path to shunt surge energy away from protected IC |
| Anode | Protected line input | Connected to DC rail or signal line requiring overvoltage protection; reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) without degradation when properly mounted |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage stress on downstream MOSFETs or microcontrollers during clamping |
| MSL Level 1, 260 °C peak reflow | Compatible with standard lead-free SMT assembly processes without moisture sensitivity concerns |
| AEC-Q101 qualified (HM3) | Validated for automotive use with extended temperature cycling, HTRB, and surge lifetime testing |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage drift over 15-year service life in harsh environments |
Applications
| Automotive Power Rail Protection | Industrial DC Power Input |
|---|---|
|
Use Scenario: Protecting 48 V battery management system (BMS) input against load dump transients up to 120 V. IC Role / Device Role / Timing Role: Unidirectional TVS placed between BMS controller supply pin and chassis ground. Use Value: Clamps transients to ≤740 V within nanoseconds, preventing damage to 50 V-rated buck converters and CAN transceivers. |
Use Scenario: Safeguarding programmable logic controller (PLC) 24 V DC input module from inductive switching spikes. IC Role / Device Role / Timing Role: Standoff protection device mounted directly at connector entry point. Use Value: Absorbs 600 W surges without latch-up, maintaining <1.0 μA leakage at nominal 24 V operation. |
| Telecom Line Interface | Renewable Energy Inverter DC Link |
|
Use Scenario: Shielding RS-485 transceiver power pins from induced surges on outdoor telecom wiring. IC Role / Device Role / Timing Role: Secondary protection stage following gas discharge tube (GDT) primary suppression. Use Value: Fast sub-ns response complements slower GDT, reducing let-through voltage to safe levels for isolated interface ICs. |
Use Scenario: Overvoltage suppression on photovoltaic string combiner box DC output feeding central inverter. IC Role / Device Role / Timing Role: Parallel-connected TVS across DC bus to limit voltage rise during rapid disconnection events. Use Value: Withstands repeated 10/1000 μs surges up to 600 W, supporting IEC 61643-31 compliance for solar farm installations. |
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, higher RθJA = 150 °C/W) | Limited to lower average power dissipation; not AEC-Q101 qualified | Select for space-constrained non-automotive designs where thermal margin allows |
| 1.5KE540A | Through-hole DO-201 package, identical electrical specs but larger size and manual assembly requirement | Suitable for prototyping or legacy board upgrades; lacks MSL Level 1 and AEC-Q101 validation | Choose when rework flexibility or higher surge endurance per unit volume is prioritized over SMT automation |
Compared with SMAJ540A-E3/5B and 1.5KE540A, the P6SMB540AHM3_C/I uniquely combines AEC-Q101 qualification, SMB package compatibility with high-volume pick-and-place, and verified 600 W clamping performance - making it the preferred choice for production automotive and industrial SMT assemblies requiring traceable reliability.
Availability
P6SMB540AHM3_C/I is available at Aetrix Electronics and suitable for automotive powertrain modules, industrial PLC inputs, telecom line interfaces, and renewable energy DC link protection requiring stable component supply and long-term lifecycle support.
Supply support for P6SMB540AHM3_C/I 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 is a global leader in discrete semiconductors, specializing in diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The P6SMB Series targets high-energy transient suppression in automotive, industrial, and telecom systems - engineered for robustness under repetitive surge stress and compatibility with automated manufacturing.
FAQ
What is the maximum clamping voltage of the P6SMB540AHM3_C/I under a 600 W transient?
The P6SMB540AHM3_C/I has a maximum clamping voltage (VC) of 740 V at its rated peak pulse current of 0.81 A, measured using the standard 10/1000 μs waveform. This value is guaranteed per Vishay's datasheet (Document Number: 88370, Rev. 09-Jan-2024) and reflects the actual voltage imposed on the protected circuit during full-power surge events. The P6SMB540AHM3_C/I maintains this clamping performance across its qualified temperature range.
Is the P6SMB540AHM3_C/I suitable for automotive applications?
Yes, the P6SMB540AHM3_C/I is AEC-Q101 qualified, as confirmed by its HM3 suffix and documentation in Vishay's P6SMB series datasheet. It is specifically validated for automotive use cases including engine control units, battery management systems, and ADAS power supplies. The P6SMB540AHM3_C/I meets stringent requirements for temperature cycling, high-temperature reverse bias, and surge lifetime - distinguishing it from commercial-grade alternatives.
What does the "HM3" suffix indicate in P6SMB540AHM3_C/I?
The "HM3" suffix in P6SMB540AHM3_C/I denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. Per Vishay's ordering information table, HM3 parts are designated for the high-voltage segment (250–540 V) of the P6SMB family and are supplied in 13-inch tape-and-reel format (I-type packaging). The P6SMB540AHM3_C/I also meets JESD201 Class 2 whisker resistance and MSL Level 1 reflow standards.
How does the P6SMB540AHM3_C/I compare to bidirectional TVS diodes?
The P6SMB540AHM3_C/I is unidirectional and intended for DC circuits where polarity is fixed - it conducts only during reverse overvoltage events. Unlike bidirectional variants (e.g., P6SMB540CA), it cannot protect AC or dual-polarity signals. Its VWM (459 V) and VBR (513–567 V) are specified for reverse bias only; forward conduction follows standard diode behavior. For DC power rail protection, the P6SMB540AHM3_C/I offers tighter leakage control and optimized clamping efficiency.
What is the thermal resistance specification for the P6SMB540AHM3_C/I?
The P6SMB540AHM3_C/I has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W, as published in Vishay's datasheet Section "THERMAL CHARACTERISTICS". This low value enables efficient heat transfer from the silicon die to the PCB copper pads during surge events. When mounted on the recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, the P6SMB540AHM3_C/I sustains its 600 W peak pulse rating without thermal runaway.
P6SMB540AHM3_C/I 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:
- Obsolete
- 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:
- -
- 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_C/I FAQ
1.How can I place an order for P6SMB540AHM3_C/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB540AHM3_C/I 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_C/I reliable?
The price and inventory of P6SMB540AHM3_C/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB540AHM3_C/I is usually 5 days.
3.What payment methods are accepted for P6SMB540AHM3_C/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB540AHM3_C/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB540AHM3_C/I?
P6SMB540AHM3_C/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB540AHM3_C/I 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_C/I?
For technical support, including P6SMB540AHM3_C/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB540AHM3_C/I requirements.
6.How does Aetrix verify that P6SMB540AHM3_C/I is sourced from the original manufacturer or authorized distributors?
All P6SMB540AHM3_C/I 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_C/I meets industry standards.
7.What is the process for return or replacement of P6SMB540AHM3_C/I?
All P6SMB540AHM3_C/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB540AHM3_C/I, 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_C/I part is unused and in its original packaging.
Return procedure for P6SMB540AHM3_C/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB540AHM3_C/I Tags
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