Vishay General Semiconductor - Diodes Division P6SMB510AHM3_C/H
- Part No.:
- P6SMB510AHM3_C/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB510AHM3_C/H.pdf
- Description:
- TVS DIODE 434VWM 698VC DO214AA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
P6SMB510AHM3_C/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in power rails and signal lines. It features a 510 V standoff voltage (VWM), 535 V minimum breakdown voltage (VBR), 600 W peak pulse power rating (10/1000 μs), and clamps transients to ≤698 V at 0.86 A peak pulse current - deployed in industrial power supplies and automotive ECUs requiring robust overvoltage immunity.
For engineers reviewing the P6SMB510AHM3_C/H datasheet, P6SMB510AHM3_C/H pinout, P6SMB510AHM3_C/H application, or P6SMB510AHM3_C/H equivalent, key selection criteria include its AEC-Q101 qualification (HM3 suffix), halogen-free RoHS compliance, SMB (DO-214AA) package thermal resistance (RθJA = 100 °C/W), and unidirectional polarity with cathode band marking.
Technical Context
This TVS diode operates as a clamping device in parallel with protected circuitry, conducting only when reverse voltage exceeds VBR (485–535 V). Its glass-passivated junction ensures stable avalanche characteristics and low incremental surge resistance under repetitive 10/1000 μs transients at 0.01% duty cycle.
Designed for surface-mount assembly on 0.2" × 0.2" copper pads per terminal, it delivers 600 W peak pulse power with thermal derating above TA = 25 °C and supports operating junction temperatures up to +150 °C. The HM3 suffix confirms halogen-free, RoHS-compliant, and AEC-Q101-qualified construction for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 434 V - Maximum continuous reverse voltage before significant leakage; defines maximum operating DC bus voltage it can protect without conduction. |
| VBR (Breakdown Voltage) | 485–535 V at 1 mA - Avalanche onset range; ensures precise, repeatable clamping initiation during fast transients. |
| VC (Clamping Voltage) | ≤698 V at IPPM = 0.86 A - Peak voltage seen by protected circuit during full-rated surge; critical for IC/MOSFET voltage margin design. |
| PPPM (Peak Pulse Power) | 600 W (10/1000 μs waveform) - Energy-handling capacity for standardized lightning/surge events; enables use in IEC 61000-4-5 Level 3/4 systems. |
| TJ max. | +150 °C - Maximum junction temperature; supports operation in under-hood automotive or high-ambient industrial environments. |
| RθJA | 100 °C/W - Thermal resistance junction-to-ambient; informs PCB copper pad sizing and airflow requirements for sustained power dissipation. |
| Package | SMB (DO-214AA) - Low-profile SMD outline (4.57 mm × 3.94 mm × 2.20 mm); compatible with automated pick-and-place and reflow profiles up to 260 °C peak. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional configuration with cathode band marking. Terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or low-voltage rail; forms return path during avalanche conduction. |
| Cathode | High-side input node | Connected to protected line (e.g., 48 V supply rail); carries transient energy into the device during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD; supports under-hood and body-control module deployment. |
| 600 W peak pulse power (10/1000 μs) | Withstands IEC 61000-4-5 combination wave surges up to ±1 kV open-circuit / ±500 A short-circuit without degradation. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and JEDEC JS709B; eliminates brominated flame retardants for safer end-of-life processing. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns rise time), improving protection fidelity for sensitive gate drivers and ADC inputs. |
| MSL Level 1 (260 °C peak) | Unlimited floor life and compatibility with standard lead-free reflow profiles; no baking required prior to assembly. |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Protecting 48 V DC input stage of programmable logic controller (PLC) power modules against load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Unidirectional TVS placed across input terminals to clamp transients before they reach upstream DC-DC converters and microcontrollers. Use Value: Limits voltage excursion to ≤698 V during 600 W surges, preserving 75 V-rated MOSFETs and enabling single-stage protection without series impedance. |
Use Scenario: Safeguarding LIN bus transceivers and microcontroller I/O pins in door module ECUs exposed to battery voltage transients and ESD. IC Role / Device Role / Timing Role: Parallel-connected TVS on LIN line and VBAT rail to absorb coupled surges while maintaining signal integrity below 20 kHz bandwidth. Use Value: Achieves <1 ns response time and <0.1 μA leakage at 434 V, ensuring minimal impact on LIN communication timing and quiescent current budget. |
| Telecom Base Station DC Feeds | Renewable Energy Inverter DC Link |
|
Use Scenario: Shielding remote radio head (RRH) power inputs from induced lightning surges on outdoor cabling in 48 V telecom infrastructure. IC Role / Device Role / Timing Role: Primary overvoltage clamp on -48 V return path and positive rail, coordinated with upstream GDTs for staged protection. Use Value: Delivers 600 W pulse handling with 100 °C/W RθJA, enabling reliable operation in sealed enclosures without forced air cooling. |
Use Scenario: Protecting IGBT gate drivers and auxiliary power supplies in solar string inverters subjected to grid-switching transients and capacitor bank discharge events. IC Role / Device Role / Timing Role: High-voltage TVS on DC link monitoring circuits and isolated bias rails to prevent false triggering and latch-up. Use Value: Withstands repeated 10/1000 μs surges at 0.01% duty cycle and maintains VBR stability over 1000+ cycles - critical for 25-year field lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ510A-E3/5B | Same VWM (434 V), lower PPPM (400 W), SMA package (higher RθJA = 150 °C/W), non-AEC-Q101. | Limited to commercial-grade industrial controls; unsuitable for automotive due to lack of qualification and reduced surge margin. | Select when cost sensitivity outweighs automotive compliance and 600 W surge headroom is not required. |
| 1.5SMC510AHE3_A/H | Same VWM/VBR/VC specs, identical 600 W rating, but SMC (DO-214AB) package (larger footprint, lower RθJA = 60 °C/W). | Better thermal performance in high-power density layouts; requires larger PCB area and may conflict with tight spacing constraints. | Choose when thermal management is prioritized over board space and AEC-Q101 is not mandatory. |
Compared with SMAJ510A-E3/5B, P6SMB510AHM3_C/H provides 50% higher surge power margin and automotive qualification; versus 1.5SMC510AHE3_A/H, it saves 30% board area while trading 40 °C/W higher thermal resistance - optimal for space-constrained AEC-Q101 designs.
Availability
P6SMB510AHM3_C/H is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, telecom base station feeds, and renewable energy inverters requiring stable component supply with guaranteed long-term sourcing.
Supply support for P6SMB510AHM3_C/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 is a global leader in discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom systems - engineered for robustness under repetitive surge stress and stringent environmental qualification.
FAQ
What is the maximum clamping voltage of the P6SMB510AHM3_C/H under rated surge conditions?
The P6SMB510AHM3_C/H clamps to a maximum of 698 V when subjected to its rated peak pulse current of 0.86 A (10/1000 μs waveform). This value is measured at the device terminals and represents the highest voltage the protected circuit will experience during a full 600 W transient event. Designers must ensure downstream components have sufficient voltage margin above this clamping level.
Is the P6SMB510AHM3_C/H suitable for automotive applications?
Yes, the P6SMB510AHM3_C/H is AEC-Q101 qualified, as confirmed by the HM3 suffix and Vishay's documentation. It meets stress test requirements for temperature cycling, high-temperature operating life, and ESD robustness - making it appropriate for under-hood and body electronics such as BCMs, ADAS power domains, and infotainment system power rails.
What does the "_C/H" suffix indicate in P6SMB510AHM3_C/H?
The "_C/H" suffix in P6SMB510AHM3_C/H denotes packaging configuration: "C" specifies the device marking code (510A), and "H" indicates 7-inch plastic tape-and-reel delivery (750 units per reel). This ordering code aligns with Vishay's standard format for AEC-Q101 qualified, halogen-free SMB-packaged TVS diodes.
How does the thermal performance of P6SMB510AHM3_C/H compare to larger-package alternatives?
The P6SMB510AHM3_C/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" copper pads. This is higher than SMC-packaged equivalents (e.g., 1.5SMC510AHE3_A/H at 60 °C/W) but optimized for space-constrained layouts. Adequate copper pour and airflow are essential to maintain TJ ≤150 °C during repetitive surges.
Can P6SMB510AHM3_C/H be used in bidirectional configurations?
No, P6SMB510AHM3_C/H is a unidirectional TVS diode, as indicated by the "A" suffix (not "CA") and cathode band marking. For bidirectional protection at similar voltage ratings, Vishay offers the P6SMB510CA variant - which lacks polarity marking and conducts symmetrically in both directions, suitable for AC lines or differential signal pairs.
P6SMB510AHM3_C/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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 434V
- Voltage - Breakdown (Min):
- 485V
- Voltage - Clamping (Max) @ Ipp:
- 698V
- Current - Peak Pulse (10/1000µs):
- 860mA
- 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)
P6SMB510AHM3_C/H FAQ
1.How can I place an order for P6SMB510AHM3_C/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB510AHM3_C/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 P6SMB510AHM3_C/H reliable?
The price and inventory of P6SMB510AHM3_C/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB510AHM3_C/H is usually 5 days.
3.What payment methods are accepted for P6SMB510AHM3_C/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB510AHM3_C/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB510AHM3_C/H?
P6SMB510AHM3_C/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB510AHM3_C/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 P6SMB510AHM3_C/H?
For technical support, including P6SMB510AHM3_C/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB510AHM3_C/H requirements.
6.How does Aetrix verify that P6SMB510AHM3_C/H is sourced from the original manufacturer or authorized distributors?
All P6SMB510AHM3_C/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 P6SMB510AHM3_C/H meets industry standards.
7.What is the process for return or replacement of P6SMB510AHM3_C/H?
All P6SMB510AHM3_C/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB510AHM3_C/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 P6SMB510AHM3_C/H part is unused and in its original packaging.
Return procedure for P6SMB510AHM3_C/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB510AHM3_C/H Tags

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