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Vishay General Semiconductor - Diodes Division P6SMB540A-E3/52
- Part No.:
- P6SMB540A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB540A-E3/52.pdf
- Description:
- TVS DIODE 459VWM 740VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6SMB540A-E3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection with 600 W peak pulse power (10/1000 μs), 459 V stand-off voltage (VWM), and 740 V maximum clamping voltage (VC) at 0.81 A peak pulse current. It protects power rails and signal lines in industrial power supplies and high-voltage sensor interfaces.
For engineers reviewing the P6SMB540A-E3/52 datasheet, P6SMB540A-E3/52 pinout, P6SMB540A-E3/52 application, or P6SMB540A-E3/52 equivalent, key selection criteria include its 459 V reverse stand-off rating, unidirectional polarity, RoHS-compliant matte tin plating, MSL Level 1 moisture sensitivity, and suitability for automated SMT assembly on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamping device triggered by transient overvoltage events exceeding its 459 V stand-off threshold. Its glass-passivated junction ensures stable breakdown behavior, while low incremental surge resistance enables rapid energy dissipation during 10/1000 μs surges.
Designed for unidirectional protection only, it features cathode-band polarity marking and complies with JESD201 Class 2 whisker resistance. Thermal resistance is 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), supporting operation up to +150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 459 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR (Breakdown) | 513–567 V at 1.0 mA - Confirmed breakdown range ensuring reliable turn-on margin above VWM |
| VC (Clamping) | 740 V at 0.81 A - Peak voltage seen by protected circuit during full-rated 600 W transient |
| PPPM | 600 W - Surge handling capability per 10/1000 μs waveform, 0.01 % duty cycle |
| IPPM | 0.81 A - Peak pulse current corresponding to VC = 740 V under standard test conditions |
| TJ max. | +150 °C - Maximum junction temperature enabling use in high-ambient industrial environments |
| Package | SMB (DO-214AA) - Low-profile SMT package with 5.59 mm × 4.06 mm footprint, optimized for automated placement |
Pinout & Package
SMB (DO-214AA) package with cathode band marking on one end; anode and cathode terminals are co-planar matte tin-plated leads, solderable per J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VWM exceeded |
| Anode | Reference/return path | Typically tied to system ground or low-impedance return plane for effective clamping |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on high-voltage DC rails |
| Glass passivated junction | Ensures long-term stability of VBR and low leakage (<1 μA at VWM) across temperature and life cycle |
| MSL Level 1 rating | Permits unlimited floor life and reflow at 260 °C peak without baking, simplifying SMT manufacturing |
| RoHS-compliant, matte tin plating | Supports lead-free assembly and meets IPC-J-STD-006B solderability requirements |
| Low profile (max height 2.20 mm) | Reduces board clearance issues in space-constrained industrial and telecom modules |
Applications
| Industrial Power Supply Protection | High-Voltage Sensor Interface |
|---|---|
|
Use Scenario: Protecting auxiliary 400–500 V DC bus in programmable logic controller (PLC) power modules from switching transients and load dump. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between HV rail and chassis ground. Use Value: Limits transient overshoot to ≤740 V, preventing damage to downstream DC-DC controllers rated for 800 V input. |
Use Scenario: Safeguarding analog front-end inputs of isolation amplifiers monitoring 480 V AC motor phase currents. IC Role / Device Role / Timing Role: Primary overvoltage clamp on isolated signal path prior to precision ADC input. Use Value: Maintains signal integrity by clamping fast transients (<1 ns rise time) without adding measurable capacitance (CJ < 50 pF). |
| Telecom Rectifier Output Stage | Renewable Energy Inverter DC Link |
|
Use Scenario: Guarding output of -48 V telecom rectifiers against lightning-induced surges on distribution backplanes. IC Role / Device Role / Timing Role: Standoff-rated TVS on positive rail relative to negative return (cathode to rail). Use Value: Withstands repetitive 600 W pulses at 0.01 % duty cycle, matching telecom surge test profiles (ITU-T K.20/21). |
Use Scenario: Clamping transient spikes on 600 V DC link capacitors in solar string inverters during grid fault recovery. IC Role / Device Role / Timing Role: Secondary protection stage after MOV, providing precise voltage limiting where MOV tolerance exceeds design margin. Use Value: Tight VBR window (513–567 V) ensures activation before 600 V-rated film capacitors reach derated voltage limit. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ540A | Same VWM (459 V), identical SMB package, but lower PPPM = 600 W and higher VC = 770 V at same IPPM | Marginally less effective clamping; suitable where 30 V higher clamping voltage is acceptable | Select P6SMB540A-E3/52 when tighter clamping (740 V vs. 770 V) is required to protect 800 V-rated components. |
| 1.5SMC540A | Higher PPPM = 1500 W, larger SMC (DO-214AB) package (7.11 mm × 6.22 mm), same VWM/VBR range | Requires PCB layout change; suited for systems needing higher single-pulse energy absorption | Choose P6SMB540A-E3/52 for space-constrained designs where 600 W suffices and SMB footprint is mandatory. |
Compared with SMBJ540A and 1.5SMC540A, P6SMB540A-E3/52 delivers the tightest clamping voltage in SMB form factor while maintaining industry-standard 600 W surge rating-making it optimal for compact, high-reliability 400–500 V DC protection where board area and thermal constraints limit larger packages.
Availability
P6SMB540A-E3/52 is available at Aetrix Electronics and suitable for industrial power supplies, telecom rectifiers, high-voltage sensor interfaces, and renewable energy inverters requiring stable component supply with consistent RoHS-compliant manufacturing.
Supply support for P6SMB540A-E3/52 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 automotive-grade qualification.
The P6SMB Series targets high-energy transient suppression in industrial, telecom, and energy infrastructure applications, delivering standardized 600 W surge capability in compact SMB packaging with AEC-Q101 variants available for automotive use.
FAQ
What is the maximum clamping voltage of the P6SMB540A-E3/52 under rated surge conditions?
The P6SMB540A-E3/52 has a maximum clamping voltage (VC) of 740 V at 0.81 A peak pulse current (IPPM) using the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88370 and defines the upper voltage limit imposed on protected circuits during full-rated transient events. The P6SMB540A-E3/52 maintains this clamping performance across its specified operating temperature range.
Is the P6SMB540A-E3/52 suitable for bidirectional transient protection?
No, the P6SMB540A-E3/52 is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. Bidirectional variants in the P6SMB family use the "CA" suffix (e.g., P6SMB540CA). Using the P6SMB540A-E3/52 in bidirectional applications would result in forward conduction during negative transients, potentially damaging the device or failing to suppress. Always verify polarity alignment when placing the P6SMB540A-E3/52.
What is the thermal resistance and how does it affect PCB layout for the P6SMB540A-E3/52?
The P6SMB540A-E3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W. To maintain safe operation at full 600 W surge rating, Vishay specifies mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. Reducing pad size increases RθJA, risking thermal runaway during repetitive surges. The P6SMB540A-E3/52 must be placed per the recommended pad layout in Document 88370.
Does the P6SMB540A-E3/52 meet automotive qualification standards?
The base P6SMB540A-E3/52 is commercial-grade and RoHS-compliant but not AEC-Q101 qualified. For automotive applications, Vishay offers the P6SMB540AHM3_D variant (halogen-free, RoHS-compliant, AEC-Q101 qualified), identified by the "HM3_D" suffix. The P6SMB540A-E3/52 itself lacks the extended temperature cycling, humidity testing, and failure analysis required for automotive use-designers must select the HM3_D version if qualifying for automotive ECUs or ADAS subsystems.
How does the P6SMB540A-E3/52 compare to the P6SMB510A in terms of voltage ratings?
The P6SMB540A-E3/52 has a higher stand-off voltage (VWM = 459 V) and breakdown range (VBR = 513–567 V) than the P6SMB510A (VWM = 434 V, VBR = 485–535 V), reflecting a +5 % increase in nominal rating. Its clamping voltage is also elevated (740 V vs. 698 V), making the P6SMB540A-E3/52 appropriate for 480–500 V DC systems where the P6SMB510A may enter conduction prematurely. Both share identical package, power rating, and thermal specs.
P6SMB540A-E3/52 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB540A-E3/52 FAQ
1.How can I place an order for P6SMB540A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB540A-E3/52 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 P6SMB540A-E3/52 reliable?
The price and inventory of P6SMB540A-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB540A-E3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB540A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB540A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB540A-E3/52?
P6SMB540A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB540A-E3/52 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 P6SMB540A-E3/52?
For technical support, including P6SMB540A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB540A-E3/52 requirements.
6.How does Aetrix verify that P6SMB540A-E3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB540A-E3/52 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 P6SMB540A-E3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB540A-E3/52?
All P6SMB540A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB540A-E3/52, 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 P6SMB540A-E3/52 part is unused and in its original packaging.
Return procedure for P6SMB540A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB540A-E3/52 Tags
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