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Vishay General Semiconductor - Diodes Division P6SMB540AHE3_A/H
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- Part No.:
- P6SMB540AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB540AHE3_A/H.pdf
- Description:
- TVS DIODE 459VWM 740VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,662
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Product details
Overview
P6SMB540AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the 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 bus lines, industrial motor drives, and telecom power supplies against lightning-induced surges and inductive switching transients.
For engineers reviewing the P6SMB540AHE3_A/H datasheet, P6SMB540AHE3_A/H pinout, P6SMB540AHE3_A/H application, or P6SMB540AHE3_A/H equivalent, this device delivers AEC-Q101 qualification, low incremental surge resistance, and MSL Level 1 moisture sensitivity - critical for automotive-grade power rail protection and long-lifecycle industrial deployments.
Technical Context
This TVS operates as a unidirectional clamping device with cathode-banded polarity, leveraging a glass-passivated silicon junction to achieve fast response (<1 ns) and stable clamping under repetitive 10/1000 μs surge events. Its thermal resistance (RθJA = 100 °C/W) and junction temperature limit (TJ = –65 to +150 °C) support operation on standard PCB copper pads without heatsinking in intermittent surge conditions.
The device complies with ANSI/IEEE C62.35 standards for transient suppression and meets JESD201 Class 2 whisker resistance. Its 740 V clamping voltage at 0.81 A peak pulse current ensures robust overvoltage margin above its 459 V stand-off voltage (VWM), enabling reliable hold-off in 400–500 V DC systems before clamping activation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 513 V / 567 V at 1.0 mA test current - defines precise voltage threshold where avalanche conduction begins, ensuring predictable turn-on in high-voltage rails |
| VWM | 459 V - maximum continuous reverse operating voltage; sets safe DC working limit below clamping onset |
| VC @ IPPM | 740 V at 0.81 A - clamping voltage during 600 W surge; determines worst-case overvoltage seen by downstream circuitry |
| PPPM | 600 W (10/1000 μs waveform) - peak surge energy handling capacity; supports IEC 61000-4-5 Level 4 compliance when properly laid out |
| IPPM | 0.81 A - derived peak pulse current at VC; used to size series impedance and verify layout current-carrying capability |
| TJ max | +150 °C - maximum junction temperature; enables use in under-hood automotive environments and enclosed industrial enclosures |
| Package | SMB (DO-214AA) - standardized surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height; compatible with automated pick-and-place |
Pinout & Package
SMB (DO-214AA) package: molded plastic case with matte tin-plated leads, UL 94 V-0 flammability rating, and cathode band marking for unidirectional polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to system ground or return path; forms current loop during clamping event |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., DC+); avalanche conduction initiates here during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics per stress test requirements - supports under-hood and battery-line applications |
| 600 W peak pulse power | Handles IEC 61000-4-5 combination wave surges up to 4 kV (open-circuit)/2 kA (short-circuit) with proper PCB layout |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients - improves clamping precision for sensitive gate drivers and controllers |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without baking - reduces manufacturing complexity and cost |
| Glass passivated junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure |
Applications
| Industrial Motor Drives | Telecom DC Power Feeds |
|---|---|
Use Scenario: Protection of 48–60 V DC input stages in variable-frequency drives against inductive kickback from contactor switching and regenerative braking. IC Role / Device Role / Timing Role: Unidirectional TVS placed across DC bus inputs to clamp positive-going transients before they reach IGBT gate drivers and MCU power rails. Use Value: Prevents latch-up or permanent damage to 3.3 V logic interfaces and isolated gate drivers by limiting transient voltage to ≤740 V during 600 W surges. |
Use Scenario: Surge protection on -48 V or +57 V telecom rectifier outputs feeding remote radio units and baseband processors. IC Role / Device Role / Timing Role: Standoff-rated TVS installed at power entry point to absorb lightning-induced longitudinal surges per GR-1089-CORE. Use Value: Maintains 459 V reverse standoff while clamping to 740 V, preserving compatibility with -57 V nominal systems and avoiding false triggering during normal ripple. |
| Automotive Battery Management | High-Voltage DC Link Monitoring |
Use Scenario: Overvoltage suppression on 12 V/48 V dual-battery system monitoring circuits exposed to load dump pulses (ISO 7637-2 Pulse 5a). IC Role / Device Role / Timing Role: Primary clamping element on analog front-end inputs measuring battery voltage and current shunt signals. Use Value: AEC-Q101 qualification and 150 °C TJ rating ensure reliability during extended engine-off hot-soak conditions and repeated load dump events. |
Use Scenario: Protection of isolated ADC inputs sampling 300–600 V DC link voltages in EV inverters and solar microinverters. IC Role / Device Role / Timing Role: Secondary surge limiter placed upstream of isolation barrier to prevent common-mode transients from coupling into measurement circuitry. Use Value: 540 V VBR provides sufficient margin above 450 V nominal DC link, while 740 V VC avoids exceeding isolation barrier withstand ratings. |
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 | Same VBR range (513–567 V), but lower PPPM = 400 W and higher VC = 871 V at 0.54 A | Limited to lower-energy surge environments; not suitable for IEC 61000-4-5 Level 4 | Select only if board space constraints require SMA package and surge energy is confirmed ≤400 W |
| SMCJ540A | Higher PPPM = 1500 W, same VBR, but larger SMC (DO-214AB) package (7.11 mm × 6.22 mm) | Supports heavier industrial surges; requires larger PCB area and higher thermal mass | Choose when system-level testing shows >600 W surge margin is required or when derating for elevated ambient temperatures |
Compared with SMAJ540A and SMCJ540A, the P6SMB540AHE3_A/H delivers optimal balance of 600 W surge capability, SMB footprint, and AEC-Q101 qualification - making it the preferred choice for space-constrained automotive and telecom power modules requiring validated reliability and standardized reflow compatibility.
Availability
P6SMB540AHE3_A/H is available at Aetrix Electronics and suitable for industrial motor drives, telecom DC power feeds, and automotive battery management systems requiring stable component supply, AEC-Q101 traceability, and RoHS-compliant sourcing.
Supply support for P6SMB540AHE3_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, MOSFETs, and optoelectronics, with emphasis on high-reliability, high-performance passive and active components for industrial and automotive markets.
The P6SMB Series targets high-voltage transient suppression in compact surface-mount formats, specifically engineered for robustness in harsh environments such as automotive power distribution, telecom infrastructure, and industrial automation control cabinets.
FAQ
What is the maximum continuous reverse voltage rating for P6SMB540AHE3_A/H?
The P6SMB540AHE3_A/H has a maximum reverse stand-off voltage (VWM) of 459 V. This value represents the highest DC or RMS voltage the device can block continuously without entering avalanche conduction. It is derived from the 540 V nominal breakdown voltage and ensures ≥10 % margin below VBR min (513 V), providing reliable hold-off in 400–450 V DC systems such as telecom power feeds and industrial HVDC links.
Is P6SMB540AHE3_A/H suitable for automotive applications?
Yes, P6SMB540AHE3_A/H is AEC-Q101 qualified, as indicated by the "HE3" suffix and documented in Vishay's ordering information for devices marked with "_D" or "_B" variants. It undergoes stress testing for temperature cycling, humidity bias, and mechanical shock per AEC-Q101 Rev D, making it appropriate for under-hood battery monitoring, 48 V mild-hybrid power rails, and ADAS domain controller power inputs where transient immunity and long-term reliability are mandatory.
What is the clamping voltage of P6SMB540AHE3_A/H at its rated peak pulse current?
The P6SMB540AHE3_A/H clamps to a maximum of 740 V at its specified peak pulse current (IPPM) of 0.81 A, measured using the standard 10/1000 μs double-exponential waveform. This clamping voltage defines the upper voltage limit imposed on protected circuitry during a full-power surge event and must be compared against the absolute maximum ratings of downstream components such as gate drivers, ADCs, or isolated power supplies.
Does P6SMB540AHE3_A/H have a bidirectional variant?
No, P6SMB540AHE3_A/H is a unidirectional TVS diode, as confirmed by its part number suffix "A" (not "CA") and the absence of bidirectional VBR/VWM specifications in the datasheet table. Bidirectional variants in the P6SMB family use the "CA" suffix (e.g., P6SMB540CA), but no such version is listed for the 540 V rating - the highest bidirectional option documented is P6SMB440CA (VBR = 418–462 V).
What is the thermal resistance of P6SMB540AHE3_A/H, and how does it affect layout?
The P6SMB540AHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes no additional heatsinking; designers must allocate adequate copper area and avoid thermal bottlenecks in traces to maintain TJ ≤ 150 °C during repetitive surge events. For high-duty-cycle applications, increasing pad size or adding internal ground planes improves thermal performance.
P6SMB540AHE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Box (TB)
- 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 (SMBJ)
P6SMB540AHE3_A/H FAQ
1.How can I place an order for P6SMB540AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB540AHE3_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 P6SMB540AHE3_A/H reliable?
The price and inventory of P6SMB540AHE3_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 P6SMB540AHE3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB540AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB540AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB540AHE3_A/H?
P6SMB540AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB540AHE3_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 P6SMB540AHE3_A/H?
For technical support, including P6SMB540AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB540AHE3_A/H requirements.
6.How does Aetrix verify that P6SMB540AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB540AHE3_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 P6SMB540AHE3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB540AHE3_A/H?
All P6SMB540AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB540AHE3_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 P6SMB540AHE3_A/H part is unused and in its original packaging.
Return procedure for P6SMB540AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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