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Vishay General Semiconductor - Diodes Division P6SMB480AHM3_D/H
- Part No.:
- P6SMB480AHM3_D/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB480AHM3_D/H.pdf
- Description:
- 600W,480V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:9,641
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Product details
Overview
P6SMB480AHM3_D/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 480 V standoff voltage (VWM), 504 V minimum breakdown voltage (VBR), 600 W peak pulse power rating (10/1000 μs), and clamps transients to 658 V at 0.91 A peak pulse current - deployed in automotive power distribution modules, industrial motor drive DC bus lines, and telecom rectifier outputs.
For engineers reviewing the P6SMB480AHM3_D/H datasheet, P6SMB480AHM3_D/H pinout, P6SMB480AHM3_D/H application, or P6SMB480AHM3_D/H equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, SMB (DO-214AA) package dimensions, thermal resistance data, and real-world design implications for overvoltage protection in high-voltage DC systems.
Technical Context
This TVS operates as a unidirectional clamping device with cathode-banded polarity, optimized for fast response (<1 ns) to transient events such as load dump, inductive switching spikes, and ESD. Its glass-passivated junction ensures stable leakage performance and low incremental surge resistance under repetitive 10/1000 μs surges at 0.01% duty cycle.
Rated for TJ = –65 °C to +150 °C operation and qualified to AEC-Q101, the P6SMB480AHM3_D/H supports automotive-grade reliability in harsh environments. Its RθJA of 100 °C/W and RθJL of 20 °C/W define thermal limits when mounted on 5.0 mm × 5.0 mm copper pads per terminal - critical for sustained surge handling without thermal runaway.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 408 V - Maximum continuous reverse operating voltage before clamping begins; sets upper limit for normal DC rail operation. |
| VBR (Breakdown Voltage) | 456–504 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 658 V at IPPM = 0.91 A - Peak voltage seen by protected circuit during full-rated 600 W transient; defines worst-case stress level. |
| PPPM (Peak Pulse Power) | 600 W (10/1000 μs waveform) - Energy-handling capacity for standardized surge testing; validates robustness against IEC 61000-4-5 Level 4 surges. |
| ID (Reverse Leakage) | 1.0 μA at VWM - Ultra-low leakage preserves system efficiency and prevents false triggering in high-impedance sensing paths. |
| TJ max. | +150 °C - Enables use in under-hood automotive locations and enclosed industrial enclosures without derating below ambient. |
| AEC-Q101 Qualified | Yes - Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD; suffix HM3 denotes halogen-free RoHS-compliant AEC-Q101 version. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, MSL Level 1 (260 °C reflow peak), UL 94 V-0 molding compound. Cathode identified by black band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side of protected line (e.g., ground or return path); enables unidirectional clamping only. |
| Cathode | Current exit point during reverse avalanche | Connected to higher-potential side (e.g., +48 V rail); defines clamping direction and polarity-sensitive placement. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 surge immunity up to 4 kV (line-to-earth) in 2 Ω/12 Ω source impedance configurations. |
| Glass passivated junction | Ensures long-term stability of VBR and leakage across temperature and lifetime; eliminates risk of junction corrosion in humid environments. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive powertrain and body electronics applications requiring zero defect rates and extended temperature cycling. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns response), improving protection margin for downstream MOSFETs and controllers. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and JESD201 Class 2 whisker resistance; suitable for green manufacturing and export compliance. |
Applications
| Automotive Load Dump Protection | Industrial DC Bus Surge Suppression |
|---|---|
Use Scenario: Protecting engine control unit (ECU) power inputs during alternator load dump events (ISO 7637-2 Pulse 5a). IC Role / Device Role / Timing Role: Unidirectional TVS clamping transient energy away from LDO regulators and microcontroller power pins. Use Value: Limits peak rail voltage to ≤658 V, preventing damage to 40 V-rated input stages while surviving 600 W pulses without degradation. |
Use Scenario: Safeguarding IGBT gate drivers and bus voltage monitors in 400 V industrial motor drives during inductive kickback. IC Role / Device Role / Timing Role: Fast-acting shunt element absorbing stored inductive energy from contactor switching or fault conditions. Use Value: Clamps 480 V nominal DC bus transients within nanoseconds, maintaining safe operating area for 650 V IGBTs and enabling reliable system-level surge certification. |
| Telecom Rectifier Output Protection | Renewable Energy Charge Controller Input |
Use Scenario: Shielding PoE midspan injectors and telecom rectifier outputs from lightning-induced surges on -48 V DC distribution lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed directly at output terminals to divert surge current before reaching downstream DC/DC converters. Use Value: Withstands repeated 600 W surges while maintaining <1 μA leakage at 408 V, preserving efficiency and reducing thermal load on heat-sensitive telecom modules. |
Use Scenario: Protecting solar charge controller inputs connected to 400–500 V PV string outputs exposed to grid-switching transients and nearby lightning. IC Role / Device Role / Timing Role: High-voltage unidirectional suppressor placed between PV+ and ground to clamp positive-going surges without affecting MPPT tracking. Use Value: Provides precise 480 V standoff and 658 V clamping to align with system insulation ratings, avoiding unnecessary derating of upstream fusing or isolation components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ480A-E3/5B | Same VWM/VBR/VC specs but rated for 400 W PPPM (10/1000 μs); SMA package (DO-214AC), smaller footprint, higher RθJA (150 °C/W). | Limited to lower-energy surges; unsuitable for ISO 7637-2 Pulse 5a or IEC 61000-4-5 Level 4 without parallel devices. | Select when board space is constrained and surge energy is ≤400 W; verify thermal margin with reduced copper pad area. |
| SMCJ480A-M3/5B | Same 600 W rating and 480 V VWM, but SMC (DO-214AB) package - larger footprint, lower RθJA (60 °C/W), higher IFSM (200 A). | Better thermal performance and surge current handling; preferred for high-reliability industrial or railway applications. | Choose when enhanced thermal margin or higher single-pulse surge tolerance (e.g., >100 A IFSM) is required; accepts larger PCB area. |
Compared with SMAJ480A-E3/5B, P6SMB480AHM3_D/H delivers 50% higher surge energy handling in a compact SMB outline; versus SMCJ480A-M3/5B, it trades thermal performance for space savings - making it optimal for AEC-Q101-compliant automotive modules where footprint and qualification outweigh raw thermal headroom.
Availability
P6SMB480AHM3_D/H is available at Aetrix Electronics and suitable for automotive power distribution, industrial motor drive DC bus protection, and telecom rectifier output stabilization requiring stable component supply, AEC-Q101 traceability, and halogen-free compliance.
Supply support for P6SMB480AHM3_D/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, precision, and application-specific optimization.
The P6SMB Series targets high-voltage transient suppression in automotive, industrial, and telecom infrastructure - engineered for robustness under repetitive surge stress, wide temperature operation, and regulatory compliance including AEC-Q101 and RoHS.
FAQ
What is the maximum clamping voltage of the P6SMB480AHM3_D/H under full-rated surge conditions?
The P6SMB480AHM3_D/H clamps to a maximum of 658 V when subjected to its rated 0.91 A peak pulse current (IPPM) under a 10/1000 μs waveform. This value is measured at the device terminals with standard mounting on 5.0 mm × 5.0 mm copper pads per lead and defines the highest voltage imposed on the protected circuit during a 600 W transient event. The P6SMB480AHM3_D/H maintains this clamping performance across its full operating temperature range.
Is the P6SMB480AHM3_D/H suitable for automotive applications requiring AEC-Q101 qualification?
Yes, the P6SMB480AHM3_D/H is explicitly AEC-Q101 qualified, as confirmed by the HM3 suffix and documentation in Vishay's P6SMB datasheet (Rev. 09-Jan-2024). It has passed stress tests including high-temperature operating life (HTOL), temperature cycling (TCT), and ESD per AEC-Q101 Rev. G. The P6SMB480AHM3_D/H is approved for use in automotive body electronics, powertrain subsystems, and infotainment power supplies where certified reliability is mandatory.
What does the "D/H" suffix indicate in P6SMB480AHM3_D/H?
The "D" in P6SMB480AHM3_D/H denotes AEC-Q101 qualification for high-voltage variants (250 V to 540 V), while "H" specifies packaging in 7-inch plastic tape and reel (750 units per reel). This ordering code confirms halogen-free, RoHS-compliant construction (HM3), automotive qualification (D), and standard reel delivery (H) - all verified in Vishay's official ordering information table on page 3 of document 88370.
How does the thermal resistance of the P6SMB480AHM3_D/H affect its surge capability?
The P6SMB480AHM3_D/H has a typical RθJA of 100 °C/W and RθJL of 20 °C/W. These values directly constrain its ability to dissipate heat during repetitive surges: exceeding the 600 W rating without adequate copper pad area (minimum 5.0 mm × 5.0 mm per terminal) risks junction overheating and parametric shift. The P6SMB480AHM3_D/H must be mounted per Vishay's recommended pad layout to sustain its full-rated surge performance across temperature.
Can the P6SMB480AHM3_D/H be used in bidirectional protection circuits?
No, the P6SMB480AHM3_D/H is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. Bidirectional operation requires the "CA" suffix (e.g., P6SMB480CA). Using the P6SMB480AHM3_D/H in a bidirectional configuration would result in forward conduction during negative transients, causing failure. For AC or dual-polarity rail protection, select a verified bidirectional variant instead of modifying the P6SMB480AHM3_D/H layout.
P6SMB480AHM3_D/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 408V
- Voltage - Breakdown (Min):
- 456V
- Voltage - Clamping (Max) @ Ipp:
- 658V
- Current - Peak Pulse (10/1000µs):
- 910mA
- 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)
P6SMB480AHM3_D/H FAQ
1.How can I place an order for P6SMB480AHM3_D/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB480AHM3_D/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 P6SMB480AHM3_D/H reliable?
The price and inventory of P6SMB480AHM3_D/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB480AHM3_D/H is usually 5 days.
3.What payment methods are accepted for P6SMB480AHM3_D/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB480AHM3_D/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB480AHM3_D/H?
P6SMB480AHM3_D/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB480AHM3_D/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 P6SMB480AHM3_D/H?
For technical support, including P6SMB480AHM3_D/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB480AHM3_D/H requirements.
6.How does Aetrix verify that P6SMB480AHM3_D/H is sourced from the original manufacturer or authorized distributors?
All P6SMB480AHM3_D/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 P6SMB480AHM3_D/H meets industry standards.
7.What is the process for return or replacement of P6SMB480AHM3_D/H?
All P6SMB480AHM3_D/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB480AHM3_D/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 P6SMB480AHM3_D/H part is unused and in its original packaging.
Return procedure for P6SMB480AHM3_D/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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