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Vishay General Semiconductor - Diodes Division P6SMB480A-E3/5B
- Part No.:
- P6SMB480A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB480A-E3/5B.pdf
- Description:
- TVS DIODE 408VWM 658VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,142
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Product details
Overview
P6SMB480A-E3/5B from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMB (DO-214AA) package, rated for 480 V standoff voltage (VWM), 504 V minimum breakdown voltage (VBR), and 600 W peak pulse power (10/1000 μs). It clamps transients to 658 V at 0.91 A peak pulse current and is designed for overvoltage protection of high-voltage DC rails in industrial power supplies and telecom infrastructure.
For engineers reviewing the P6SMB480A-E3/5B datasheet, P6SMB480A-E3/5B pinout, P6SMB480A-E3/5B application, or P6SMB480A-E3/5B equivalent, this part delivers verified unidirectional clamping performance with RoHS-compliant matte tin plating, MSL Level 1 moisture sensitivity, and J-STD-002 solderability - critical for high-reliability automated assembly in harsh-environment systems.
Technical Context
The P6SMB480A-E3/5B employs a glass-passivated silicon junction optimized for fast transient response (<1 ns) and low incremental surge resistance. Its unidirectional polarity features a cathode band marking and operates with a maximum reverse leakage of 1.0 μA at 408 V standoff, enabling stable high-impedance standby behavior before clamping.
Thermally, it exhibits RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), supporting operation up to TJ = +150 °C. Derating curves confirm usable pulse power down to TA = +125 °C when mounted on 5.0 mm × 5.0 mm copper pads per terminal - essential for sustained surge handling in enclosed power converters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 408 V - Maximum continuous reverse voltage before significant leakage; defines safe operating DC rail margin. |
| VBR (Breakdown Voltage) | 456–504 V at IT = 1.0 mA - Confirmed avalanche onset range; ensures predictable clamping initiation. |
| VC (Clamping Voltage) | 658 V at IPPM = 0.91 A (10/1000 μs) - Peak voltage seen by protected circuit during worst-case surge. |
| PPPM (Peak Pulse Power) | 600 W - Sustains standardized 10/1000 μs surge without failure; validated at 0.01% duty cycle. |
| ID (Reverse Leakage) | ≤1.0 μA at VWM - Minimal standby current drain; preserves efficiency in always-on high-voltage monitoring paths. |
| TJ max. | +150 °C - Enables deployment in thermally constrained enclosures such as outdoor telecom cabinets. |
| Package | SMB (DO-214AA) - Surface-mount footprint compatible with standard pick-and-place; 0.220" × 0.130" body size. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional polarity with cathode band marking. Dimensions: 5.59 mm × 3.30 mm × 2.20 mm (L × W × H); terminals are matte tin plated, solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to system ground or low-voltage return; forms clamping path during positive transients. |
| Cathode | High-side transient input node | Connected to protected line (e.g., 400 V DC bus); avalanche conduction occurs when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Withstands repetitive lightning-induced surges in AC/DC front-ends without degradation. |
| Glass passivated chip junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity stress. |
| MSL Level 1 (260 °C peak reflow) | Supports single-pass lead-free reflow without popcorn effect or interfacial delamination. |
| RoHS-compliant, matte tin plating | Enables reliable solder joint formation and eliminates whisker risk in automotive-grade assemblies. |
| AEC-Q101 qualification option (_B suffix) | Validated for automotive power electronics where P6SMB480A-E3/5B serves as baseline commercial variant. |
Applications
| Industrial HV DC Power Supply Protection | Telecom Rectifier Output Clamping |
|---|---|
|
Use Scenario: Protecting 400 V DC output rails of three-phase rectifiers against load dump and switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed across output capacitor bank to clamp overshoots exceeding 450 V. Use Value: Limits voltage excursion to ≤658 V during 0.91 A surges, preventing MOSFET gate oxide rupture and electrolytic capacitor overvoltage failure. |
Use Scenario: Safeguarding telecom -48 V to +400 V DC-DC converter inputs from induced surges on long-line feeds. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between HV rail and chassis ground to absorb coupled lightning energy. Use Value: Maintains <1.0 μA leakage at 408 V, avoiding unnecessary standby power loss while delivering 600 W surge immunity. |
| Renewable Energy Inverter DC Link | Rail-to-Rail Surge Suppression in EV Chargers |
|
Use Scenario: Clamping transients on photovoltaic inverter DC link capacitors exposed to grid-switching events. IC Role / Device Role / Timing Role: High-VWM TVS placed across DC link to suppress dV/dt spikes from IGBT commutation. Use Value: Fast <1 ns response captures sub-microsecond transients before they propagate to gate drivers or controllers. |
Use Scenario: Protecting onboard charger HV DC bus (350–450 V) from ISO 7637-2 pulse 5a/b surges. IC Role / Device Role / Timing Role: Primary unidirectional clamping device on main DC input, referenced to vehicle chassis. Use Value: 658 V clamping voltage ensures downstream SiC MOSFETs remain within 80% of their 750 V VDSS rating during surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ480A | Same VWM/VBR/VC specs but SMA package (smaller footprint, lower PPPM = 400 W) | Limited to lower-energy surges; unsuitable for 600 W requirement in industrial rectifiers | Select P6SMB480A-E3/5B when 600 W pulse rating and SMB mechanical robustness are mandatory. |
| SMCJ480A | Same VWM/VBR/VC but SMC package (larger, higher PPPM = 1500 W, RθJA = 25 °C/W) | Over-specified for space-constrained designs; requires larger PCB area and thermal relief | Choose P6SMB480A-E3/5B where 600 W suffices and SMB footprint enables denser layout in telecom modules. |
Compared with SMAJ480A and SMCJ480A, the P6SMB480A-E3/5B uniquely balances 600 W surge capability, SMB package compatibility with high-volume SMT lines, and verified 1.0 μA leakage at 408 V - making it optimal for cost-sensitive yet reliability-critical 400 V DC protection.
Availability
P6SMB480A-E3/5B is available at Aetrix Electronics and suitable for industrial power supplies, telecom rectifiers, renewable energy inverters, and EV onboard chargers requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB480A-E3/5B 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, ruggedness, and automotive-grade validation.
The P6SMB Series was developed for high-voltage transient suppression in industrial, telecom, and energy infrastructure, targeting applications where precise VWM tolerance, low leakage, and repeatable clamping are non-negotiable.
FAQ
What is the maximum clamping voltage of the P6SMB480A-E3/5B under standard test conditions?
The P6SMB480A-E3/5B has a maximum clamping voltage (VC) of 658 V at a peak pulse current (IPPM) of 0.91 A using the 10/1000 μs waveform. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during surge events. The P6SMB480A-E3/5B maintains this clamping performance across its specified temperature range and after repeated surge exposure when operated within derated conditions.
Is the P6SMB480A-E3/5B RoHS-compliant and lead-free?
Yes, the P6SMB480A-E3/5B carries the "E3" suffix, indicating full RoHS compliance and lead-free construction per EU Directive 2011/65/EU. Its matte tin-plated terminals meet J-STD-002 solderability requirements and JESD201 Class 2 whisker resistance testing. The P6SMB480A-E3/5B is not halogen-free; for that specification, the "M3" variant (P6SMB480A-M3/5B) is available.
Does the P6SMB480A-E3/5B have AEC-Q101 qualification?
No, the P6SMB480A-E3/5B is a commercial-grade part. AEC-Q101 qualified versions exist in the P6SMB family but use different suffixes: "HE3_B" for units rated up to 220 V and "HM3_D" for higher-voltage variants (250–540 V). Since P6SMB480A falls in the 250–540 V range, its AEC-Q101 counterpart would be P6SMB480AHM3_D/5B - not the P6SMB480A-E3/5B.
What is the thermal resistance from junction to ambient for the P6SMB480A-E3/5B?
The typical thermal resistance from junction to ambient (RθJA) for the P6SMB480A-E3/5B is 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes still air conditions and is used to calculate junction temperature rise under steady-state power dissipation. For accurate thermal design, the P6SMB480A-E3/5B's RθJL of 20 °C/W should also be considered when evaluating solder pad thermal conduction paths.
Can the P6SMB480A-E3/5B be used in bidirectional configurations?
No, the P6SMB480A-E3/5B is strictly unidirectional, as indicated by the "A" suffix and absence of "CA" in its part number. Bidirectional variants use the "CA" suffix (e.g., P6SMB480CA). Using the P6SMB480A-E3/5B in reverse-biased AC applications would result in forward conduction and catastrophic failure. Always verify polarity marking: the cathode band on the P6SMB480A-E3/5B must face the higher-potential side of the protected line.
P6SMB480A-E3/5B 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-E3/5B FAQ
1.How can I place an order for P6SMB480A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB480A-E3/5B 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-E3/5B reliable?
The price and inventory of P6SMB480A-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB480A-E3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB480A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB480A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB480A-E3/5B?
P6SMB480A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB480A-E3/5B 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-E3/5B?
For technical support, including P6SMB480A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB480A-E3/5B requirements.
6.How does Aetrix verify that P6SMB480A-E3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB480A-E3/5B 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-E3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB480A-E3/5B?
All P6SMB480A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB480A-E3/5B, 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-E3/5B part is unused and in its original packaging.
Return procedure for P6SMB480A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB480A-E3/5B Tags
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