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Vishay General Semiconductor - Diodes Division P6SMB480AHE3_A/I
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- Part No.:
- P6SMB480AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB480AHE3_A/I.pdf
- Description:
- TVS DIODE 408VWM 658VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,628
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Product details
Overview
P6SMB480AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for high-energy surge protection on DC power rails and signal lines. It features a 480 V breakdown voltage (VBR = 456–504 V at IT = 1.0 mA), 408 V stand-off voltage (VWM), 658 V maximum clamping voltage (VC) at 0.91 A peak pulse current (IPPM), and 600 W peak pulse power rating with 10/1000 μs waveform.
For engineers reviewing the P6SMB480AHE3_A/I datasheet, P6SMB480AHE3_A/I pinout, P6SMB480AHE3_A/I application, or P6SMB480AHE3_A/I equivalent, this device serves as a robust overvoltage clamp for industrial power supplies, telecom rectifier outputs, and automotive battery-line protection where high-voltage transients (e.g., load dump, ISO 7637-2 Pulse 5a) must be suppressed without sacrificing leakage performance or thermal reliability.
Technical Context
The P6SMB480AHE3_A/I operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its VBR threshold to divert surge energy to ground. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance, enabling consistent clamping under repetitive 10/1000 μs pulses at 0.01% duty cycle.
Thermally, it exhibits RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), supporting operation up to TJ = +150 °C. The device is AEC-Q101 qualified (via HE3 suffix), RoHS-compliant, and rated for MSL level 1 reflow (260 °C peak), making it suitable for automotive-grade production environments requiring long-term reliability under thermal cycling and humidity exposure.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 456 V / 504 V at IT = 1.0 mA - defines precise avalanche onset range for predictable clamping initiation |
| VWM | 408 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 658 V at IPPM = 0.91 A - peak clamped voltage during 10/1000 μs surge, limiting downstream stress |
| PPPM | 600 W - peak transient power handling capability, enabling protection against high-energy surges |
| ID @ VWM | 1.0 μA - ultra-low reverse leakage at rated stand-off, minimizing standby power loss |
| TJ max. | +150 °C - maximum junction temperature, supporting operation in under-hood or high-ambient industrial enclosures |
| Package | SMB (DO-214AA) - standardized surface-mount outline with 5.0 mm × 5.0 mm copper pad thermal relief per terminal |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to protected line (e.g., +12 V rail); conducts during forward-biased conditions or ESD events |
| Cathode | Avalanche clamping terminal | Connected to ground reference; initiates reverse breakdown above VWM, shunting surge current away from load |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables suppression of high-energy transients such as ISO 7637-2 Pulse 5a (load dump) without thermal runaway |
| AEC-Q101 qualification (HE3 suffix) | Validated for automotive applications including engine control units and body electronics requiring zero-failure reliability |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage across temperature and lifetime, critical for safety-critical systems |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow assembly without popcorn cracking or delamination risk |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for sensitive downstream ICs |
Applications
| Industrial Power Supply Protection | Telecom Rectifier Output Clamping |
|---|---|
|
Use Scenario: Protecting 400 V DC output stages of industrial switch-mode power supplies from switching transients and lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between output rail and chassis ground, acting as a voltage-clamping element during overvoltage events. Use Value: Limits transient voltage to ≤658 V, preventing damage to downstream DC-DC converters and isolated gate drivers operating at 400 V nominal. |
Use Scenario: Safeguarding telecom base station rectifier modules exposed to AC line surges and induced transients on -48 V DC distribution buses. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across rectifier output to absorb repetitive 10/1000 μs surges while maintaining <1.0 μA leakage at 408 V. Use Value: Maintains system uptime by preventing latch-up or catastrophic failure in telecom power shelves subjected to frequent grid disturbances. |
| Automotive Battery-Line Surge Suppression | High-Voltage Sensor Interface Protection |
|
Use Scenario: Load-dump protection on 24 V/48 V commercial vehicle battery lines where alternator regulation failure can generate >100 V spikes. IC Role / Device Role / Timing Role: AEC-Q101-qualified unidirectional TVS mounted directly at ECU input connector to clamp transients before entering filtering stage. Use Value: Withstands 600 W surges and operates reliably up to +150 °C, meeting OEM requirements for under-hood electronic control units. |
Use Scenario: Shielding precision analog inputs of HV battery management systems (BMS) from coupling noise and ESD on 400–800 V traction battery monitoring lines. IC Role / Device Role / Timing Role: High-VWM TVS placed at sensor front-end to suppress fast transients while preserving signal integrity via low capacitance and leakage. Use Value: Enables accurate cell voltage measurement by limiting clamping voltage to 658 V without loading the high-impedance sensing path. |
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 lower PPPM = 400 W; SMA package (smaller footprint, higher RθJA) | Limited to lower-energy surges; unsuitable for automotive load dump or telecom primary-side clamping | Select only if space-constrained and surge energy is confirmed ≤400 W |
| 1.5KE480A | Through-hole DO-201 package; identical electrical specs but higher thermal mass and slower mounting process | Not suitable for automated SMT lines; requires wave solder or hand assembly; less ideal for high-volume automotive production | Choose only for legacy through-hole designs or prototyping where rework flexibility is prioritized over production efficiency |
Compared with SMAJ480A-E3/5B and 1.5KE480A, the P6SMB480AHE3_A/I delivers full 600 W surge capacity in an AEC-Q101-qualified, MSL Level 1–compatible SMB package-making it the optimal choice for high-reliability, high-volume SMT applications demanding both automotive qualification and industrial-grade energy handling.
Availability
P6SMB480AHE3_A/I is available at Aetrix Electronics and suitable for industrial power supplies, telecom rectifier modules, and automotive battery-line protection requiring stable component supply, AEC-Q101 compliance, and high-energy transient immunity.
Supply support for P6SMB480AHE3_A/I 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, efficiency, and application-specific optimization.
The P6SMB series is engineered for robust transient suppression in harsh environments-targeting automotive, industrial, and telecom systems where high-voltage surges, thermal stress, and long-term stability are critical design constraints.
FAQ
What is the maximum clamping voltage of the P6SMB480AHE3_A/I under a 10/1000 μs surge?
The P6SMB480AHE3_A/I has a maximum clamping voltage (VC) of 658 V when subjected to its rated peak pulse current of 0.91 A with a 10/1000 μs waveform. This value is measured per JEDEC standards and guarantees that downstream circuitry remains below destructive voltage thresholds during defined surge events. The P6SMB480AHE3_A/I maintains this clamping performance across its specified operating temperature range and after repeated surge exposures.
Is the P6SMB480AHE3_A/I qualified for automotive applications?
Yes, the P6SMB480AHE3_A/I carries the HE3 suffix, indicating it is RoHS-compliant and AEC-Q101 qualified. This certification validates its reliability under automotive-grade temperature cycling, humidity bias, mechanical shock, and surge endurance testing. The P6SMB480AHE3_A/I is approved for use in engine control units, body control modules, and battery management systems where zero-failure operation is mandated.
What is the reverse leakage current of the P6SMB480AHE3_A/I at its rated stand-off voltage?
At its maximum working voltage (VWM) of 408 V and ambient temperature of 25 °C, the P6SMB480AHE3_A/I exhibits a maximum reverse leakage current (ID) of 1.0 μA. This ultra-low leakage ensures minimal power loss in high-impedance circuits and preserves accuracy in precision sensing or battery-monitoring applications where standby current budget is tightly constrained.
Does the P6SMB480AHE3_A/I have a bidirectional variant?
No-the P6SMB480AHE3_A/I is strictly unidirectional, as indicated by the "A" suffix and absence of "CA" in its part number. Bidirectional variants in the P6SMB series use the "CA" suffix (e.g., P6SMB480CA), which provide symmetrical clamping in both polarities. The P6SMB480AHE3_A/I's unidirectional configuration makes it ideal for DC rail protection where polarity is fixed and forward conduction must be preserved.
What is the thermal resistance from junction to ambient for the P6SMB480AHE3_A/I?
The P6SMB480AHE3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on the recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes standard PCB layout per Vishay's datasheet; actual thermal performance may improve with enhanced copper pour or thermal vias. The P6SMB480AHE3_A/I also features RθJL = 20 °C/W, supporting reliable heat transfer to PCB traces during sustained surge events.
P6SMB480AHE3_A/I 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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
P6SMB480AHE3_A/I FAQ
1.How can I place an order for P6SMB480AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB480AHE3_A/I 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 P6SMB480AHE3_A/I reliable?
The price and inventory of P6SMB480AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB480AHE3_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB480AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB480AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB480AHE3_A/I?
P6SMB480AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB480AHE3_A/I 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 P6SMB480AHE3_A/I?
For technical support, including P6SMB480AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB480AHE3_A/I requirements.
6.How does Aetrix verify that P6SMB480AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB480AHE3_A/I 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 P6SMB480AHE3_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB480AHE3_A/I?
All P6SMB480AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB480AHE3_A/I, 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 P6SMB480AHE3_A/I part is unused and in its original packaging.
Return procedure for P6SMB480AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB480AHE3_A/I Tags
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