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Vishay General Semiconductor - Diodes Division P6SMB480A-E3/52
- Part No.:
- P6SMB480A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB480A-E3/52.pdf
- Description:
- TVS DIODE 408VWM 658VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6SMB480A-E3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for high-voltage transient protection in power rails and DC bus lines. It features a 480 V standoff voltage (VWM), 504 V minimum breakdown voltage (VBR), 658 V maximum clamping voltage (VC) at 0.91 A peak pulse current (IPPM), and 600 W peak pulse power capability with a 10/1000 μs waveform - suitable for protecting industrial motor drives, telecom power supplies, and renewable energy inverters.
For engineers reviewing the P6SMB480A-E3/52 datasheet, P6SMB480A-E3/52 pinout, P6SMB480A-E3/52 application, or P6SMB480A-E3/52 equivalent, key selection considerations include its 480 V working voltage rating, unidirectional polarity, SMB (DO-214AA) package compatibility with automated SMT assembly, and AEC-Q101 qualification availability via alternate suffixes (e.g., P6SMB480AHM3_D/H).
Technical Context
The P6SMB480A-E3/52 operates as a silicon avalanche diode that enters controlled reverse breakdown above its 480 V stand-off threshold to clamp transient overvoltages. Its 658 V clamping voltage at 0.91 A IPPM ensures predictable voltage limiting during surge events while maintaining low incremental surge resistance for effective energy diversion.
It delivers 600 W peak pulse power handling per 10/1000 μs waveform at 0.01% duty cycle, with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead). The device is rated for -65 °C to +150 °C operating junction temperature and meets J-STD-020 MSL Level 1 reflow requirements (260 °C peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 480 V - Maximum continuous reverse voltage before significant leakage; defines upper limit of normal operating DC bus voltage. |
| VBR (Breakdown Voltage) | 456–504 V at 1 mA - Confirmed avalanche initiation range; ensures reliable triggering above system nominal voltage. |
| VC (Clamping Voltage) | 658 V at IPPM = 0.91 A - Maximum voltage seen by protected circuit during specified 10/1000 μs surge; determines downstream component voltage stress. |
| PPPM (Peak Pulse Power) | 600 W - Surge energy absorption capacity under standardized 10/1000 μs waveform; validates suitability for IEC 61000-4-5 Level 4 compliance designs. |
| Package | SMB (DO-214AA) - Surface-mount outline with 5.59 mm × 4.06 mm footprint; optimized for high-current PCB pad layouts (0.2" × 0.2" copper per terminal). |
| RoHS Compliance | E3 suffix - Lead-free, RoHS-compliant matte tin-plated terminals; qualified per JESD 22-B102 and J-STD-002 solderability standards. |
| TJ max | +150 °C - Maximum junction temperature rating; supports operation in high-ambient environments such as enclosed power converters. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with glass passivated chip junction, UL 94 V-0 flammability rating, cathode band marking on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line (e.g., ground or return path); enables unidirectional clamping from cathode to anode. |
| Cathode | Reverse-biased clamping terminal | Connected to higher-potential side (e.g., DC bus); conducts avalanche current during overvoltage transients to shunt energy to ground. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables robust protection against lightning-induced surges and inductive switching spikes in high-voltage DC systems without derating. |
| Low clamping ratio (VC/VBR ≈ 1.31) | Minimizes overvoltage overshoot during clamping, reducing stress on downstream MOSFETs, gate drivers, and controller ICs. |
| MSL Level 1 moisture sensitivity | Allows direct placement into standard SMT reflow profiles (peak 260 °C) without baking, streamlining manufacturing. |
| 150 °C maximum junction temperature | Supports reliable operation in thermally constrained enclosures such as solar string inverters and industrial PLC power modules. |
| Glass passivated junction | Ensures stable electrical characteristics and long-term reliability under repeated surge stress and high-humidity conditions. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
|
Use Scenario: Protection of DC link capacitors and IGBT gate drivers against voltage spikes from contactor switching and regenerative braking. IC Role / Device Role / Timing Role: Unidirectional TVS placed across DC bus (+ to –) to clamp transients before they reach power stage components. Use Value: Limits transient voltage to ≤658 V, preventing IGBT short-circuit failure and extending capacitor lifetime under repetitive 600 W surge conditions. |
Use Scenario: Input-stage surge suppression on -48 V DC distribution boards in central office and base station equipment. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between supply rail and chassis ground to absorb IEC 61000-4-5 combination wave surges. Use Value: Maintains system uptime by preventing latch-up or burnout in PMICs and DC/DC controllers during lightning-induced line surges. |
| Solar Photovoltaic Inverters | Railway Signaling Power Systems |
|
Use Scenario: Protection of MPPT controller inputs and isolation amplifier front-ends against fast-rising transients from PV array arcing or grid switching. IC Role / Device Role / Timing Role: High-VWM TVS mounted at DC input terminals to clamp common-mode surges before signal conditioning circuitry. Use Value: Preserves measurement accuracy and prevents false tripping by limiting transient excursions to within ±10% of 480 V nominal bus voltage. |
Use Scenario: Overvoltage safeguard for 110 V DC signaling power feeds in trackside electronic interlocking units exposed to traction return current surges. IC Role / Device Role / Timing Role: Unidirectional suppressor installed across supply input to protect relay drivers and microcontroller power rails. Use Value: Ensures SIL-2 functional safety compliance by guaranteeing no single-point failure mode during 1 kV/2 Ω surge testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ480A | Same VWM (480 V), identical SMB package, but lower PPPM (600 W vs. SMBJ series' 600 W - same rating), slightly higher VC (670 V vs. 658 V). | Functionally interchangeable in most 480 V DC bus protection roles; minor clamping voltage difference may affect margin in tight-tolerance designs. | Select SMBJ480A if dual-sourcing is required and layout allows for 12 V higher clamping headroom. |
| 1.5SMC480A | Larger SMC (DO-214AB) package (7.11 mm × 6.22 mm), same VWM/VC specs, but higher thermal mass and RθJA = 40 °C/W vs. 100 °C/W. | Better suited for high-repetition-rate surge environments (e.g., frequent motor starts); requires larger PCB area and different stencil design. | Choose 1.5SMC480A when thermal cycling endurance or >100 surges/hour duty cycle is required. |
Compared with SMBJ480A and 1.5SMC480A, the P6SMB480A-E3/52 offers optimal balance of compact SMB footprint, industry-standard 600 W surge rating, and RoHS-compliant E3 termination - making it preferred for space-constrained, high-volume industrial power modules where board real estate and SMT process compatibility are critical.
Availability
P6SMB480A-E3/52 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, and solar photovoltaic inverters requiring stable component supply, consistent parametric performance, and full traceability across production batches.
Supply support for P6SMB480A-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, rectifiers, and protection devices with emphasis on reliability, surge robustness, and automotive-grade qualification.
The P6SMB Series targets high-voltage transient suppression in industrial, telecom, and energy infrastructure applications - engineered for repeatable clamping performance, low leakage, and compatibility with automated SMT assembly lines.
FAQ
What is the maximum clamping voltage of the P6SMB480A-E3/52 under standard test conditions?
The P6SMB480A-E3/52 has a maximum clamping voltage (VC) of 658 V when subjected to its rated peak pulse current (IPPM) of 0.91 A using a 10/1000 μs waveform. This value is measured at TA = 25 °C with devices mounted on 0.2" × 0.2" copper pads per terminal, and represents the highest voltage the protected circuit will experience during a defined surge event. The P6SMB480A-E3/52 maintains this clamping performance across its full operating temperature range.
Is the P6SMB480A-E3/52 suitable for automotive applications?
The P6SMB480A-E3/52 itself is commercial-grade (E3 suffix), not AEC-Q101 qualified. However, Vishay offers automotive variants in the same P6SMB family - specifically P6SMB480AHM3_D/H - which carry the HM3_D suffix and are AEC-Q101 qualified for use in automotive powertrain and body electronics. The P6SMB480A-E3/52 remains appropriate for non-automotive industrial and telecom applications where AEC-Q101 is not mandated.
What does the "-E3/52" suffix indicate in P6SMB480A-E3/52?
The "E3" suffix denotes RoHS-compliant, lead-free matte tin-plated terminals meeting JESD 22-B102 whisker resistance Class 2 and J-STD-002 solderability standards. The "/52" indicates packaging in 7-inch diameter plastic tape and reel, with a standard quantity of 750 units per reel. This format ensures compatibility with high-speed pick-and-place equipment used in automated SMT assembly lines.
How does the thermal performance of the P6SMB480A-E3/52 compare to larger package alternatives?
The P6SMB480A-E3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W, reflecting its SMB (DO-214AA) package size. In contrast, the larger 1.5SMC480A in DO-214AB package achieves RθJA ≈ 40 °C/W due to greater copper pad area and thermal mass. While the P6SMB480A-E3/52 is optimized for space-constrained designs, its thermal limits require careful PCB layout - including minimum 0.2" × 0.2" copper pads per terminal - to sustain repetitive surge duty cycles.
Can the P6SMB480A-E3/52 be used in bidirectional protection circuits?
No - the P6SMB480A-E3/52 is a unidirectional TVS diode, identifiable by its cathode band marking. For bidirectional transient suppression, Vishay offers the P6SMB480CA variant (with CA suffix), which provides symmetrical clamping in both polarities. Using the unidirectional P6SMB480A-E3/52 in AC or floating-bus applications risks forward conduction and potential device failure; always verify polarity alignment in the target circuit before deploying the P6SMB480A-E3/52.
P6SMB480A-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):
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB480A-E3/52 FAQ
1.How can I place an order for P6SMB480A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB480A-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 P6SMB480A-E3/52 reliable?
The price and inventory of P6SMB480A-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 P6SMB480A-E3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB480A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB480A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB480A-E3/52?
P6SMB480A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB480A-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 P6SMB480A-E3/52?
For technical support, including P6SMB480A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB480A-E3/52 requirements.
6.How does Aetrix verify that P6SMB480A-E3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB480A-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 P6SMB480A-E3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB480A-E3/52?
All P6SMB480A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB480A-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 P6SMB480A-E3/52 part is unused and in its original packaging.
Return procedure for P6SMB480A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB480A-E3/52 Tags
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