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Vishay General Semiconductor - Diodes Division P6SMB480AHM3_D/I
- Part No.:
- P6SMB480AHM3_D/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB480AHM3_D/I.pdf
- Description:
- 600W,480V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,505
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Product details
Overview
P6SMB480AHM3_D/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 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 rating with 10/1000 μs waveform - deployed in industrial motor drives, telecom power supplies, and railway control systems.
For engineers reviewing the P6SMB480AHM3_D/I datasheet, P6SMB480AHM3_D/I pinout, P6SMB480AHM3_D/I application, or P6SMB480AHM3_D/I equivalent, key selection criteria include its AEC-Q101 qualification (HM3 suffix), halogen-free RoHS compliance, SMB (DO-214AA) package thermal performance (RθJA = 100 °C/W), and suitability for high-voltage transient suppression where clamping voltage margin and repetitive surge endurance are critical.
Technical Context
The P6SMB480AHM3_D/I operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to deliver fast response (<1 ns) and low incremental surge resistance. Its clamping behavior is defined under standardized 10/1000 μs waveform conditions, with derating applied above TA = 25 °C per Figure 2 of the datasheet.
Designed for surface-mount assembly on 0.2" × 0.2" copper pads, it supports automated placement and meets J-STD-020 MSL Level 1 (peak reflow ≤ 260 °C). The HM3 suffix confirms halogen-free, RoHS-compliant construction and AEC-Q101 qualification for automotive-grade reliability in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 408 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC rail operating margin. |
| VBR (Breakdown Voltage) | 456–504 V at IT = 1.0 mA - Voltage at which device enters controlled avalanche; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 658 V at IPPM = 0.91 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 600 W - Maximum non-repetitive surge energy absorption capability; validates robustness against lightning-induced surges. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in high-ambient industrial enclosures without thermal shutdown. |
| RθJA | 100 °C/W - Thermal resistance junction-to-ambient on standard PCB pad layout; informs heatsinking requirements for sustained duty cycles. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal (reverse-biased configuration) | Connected to protected line; forms cathode-to-ground path during overvoltage events. |
| Cathode | Current exit terminal (reverse-biased configuration) | Connected to system ground or reference plane; defines polarity-sensitive placement on PCB. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive electronics use with extended temperature cycling, humidity, and mechanical shock testing. |
| 600 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-earth) in properly designed front-end circuits. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declarations for green manufacturing and end-of-life handling. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., inductive switch-off), improving protection fidelity. |
| MSL Level 1 (260 °C peak reflow) | Enables single-pass lead-free reflow without moisture-related delamination or popcorn failure. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
|
Use Scenario: Protection of DC bus inputs against switching transients from IGBT gate drive noise and regenerative braking spikes. IC Role / Device Role / Timing Role: Unidirectional TVS placed across +BUS/GND to clamp voltage excursions exceeding 408 V. Use Value: Limits bus overvoltage to ≤658 V during 0.91 A surges, preventing damage to 600 V-rated electrolytic capacitors and gate drivers. |
Use Scenario: Surge suppression on -48 V DC distribution lines in central office equipment exposed to induced lightning currents. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between supply rail and chassis ground to absorb common-mode transients. Use Value: Maintains system uptime by surviving repeated 600 W surges without degradation, per Telcordia GR-1089-CORE requirements. |
| Railway Signaling Systems | Renewable Energy Inverters |
|
Use Scenario: Input protection for 300–600 V DC signaling interfaces subject to EFT/burst and surge coupling from traction power lines. IC Role / Device Role / Timing Role: High-VWM TVS used in parallel with input filters to suppress fast transients before reaching isolation amplifiers. Use Value: Provides >408 V DC operating headroom while clamping sub-658 V, ensuring signal integrity in EN 50121-4 compliant designs. |
Use Scenario: DC-link overvoltage protection in solar string inverters where PV array open-circuit voltage reaches 500–600 V. IC Role / Device Role / Timing Role: Unidirectional suppressor mounted across DC-link capacitor bank to limit transient overvoltage during grid fault clearing. Use Value: Enables compliance with UL 1741 SA Category III surge testing by limiting clamped voltage below 658 V at rated IPPM. |
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 (DO-214AC), non-AEC-Q101, RoHS-compliant only. | Limited to commercial-grade, lower-energy surge environments; not suitable for automotive or high-reliability industrial deployments. | Select when cost sensitivity outweighs AEC-Q101 requirement and surge threat level is ≤400 W. |
| 1.5KE480A | Through-hole DO-201 package, same 480 V VWM, but higher RθJA (~50 °C/W on infinite heatsink), no AEC-Q101 or halogen-free certification. | Requires manual assembly or wave soldering; unsuitable for automated SMT lines or space-constrained PCBs. | Choose only for legacy through-hole designs where board real estate and assembly process preclude SMB footprint. |
Compared with SMAJ480A-E3/5B and 1.5KE480A, the P6SMB480AHM3_D/I delivers superior thermal performance in SMT layouts, guaranteed automotive-grade reliability via AEC-Q101, and halogen-free compliance - making it the preferred choice for new high-voltage industrial and transportation electronics requiring long-term supply stability and regulatory alignment.
Availability
P6SMB480AHM3_D/I is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, railway signaling systems, and renewable energy inverters requiring stable component supply, long-lifecycle support, and traceable sourcing for safety-critical applications.
Supply support for P6SMB480AHM3_D/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 targets high-energy transient suppression in demanding environments, engineered for robustness in automotive, industrial, and telecom infrastructure where voltage surges threaten system integrity and uptime.
FAQ
What is the clamping voltage of the P6SMB480AHM3_D/I under standard test conditions?
The P6SMB480AHM3_D/I has a maximum clamping voltage (VC) of 658 V at a peak pulse current (IPPM) of 0.91 A, measured using the standardized 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is confirmed in the Electrical Characteristics table on page 2 of Vishay document 88370. The P6SMB480AHM3_D/I maintains this clamping performance across its specified operating temperature range.
Is the P6SMB480AHM3_D/I suitable for automotive applications?
Yes, the P6SMB480AHM3_D/I is AEC-Q101 qualified, as indicated by the "HM3" suffix, confirming compliance with the stress test requirements for automotive-grade discrete semiconductors. It supports junction temperatures from –65 °C to +150 °C and passes mechanical, thermal, and reliability tests required for under-hood and powertrain applications. The P6SMB480AHM3_D/I is explicitly designated for automotive use in Vishay's ordering information table on page 3.
What does the "D" in P6SMB480AHM3_D/I signify?
The "D" in P6SMB480AHM3_D/I denotes AEC-Q101 qualification for the high-voltage segment (250 V to 540 V) of the P6SMB series, as documented in Note (2) on page 3 of Vishay document 88370. It distinguishes this variant from lower-voltage "_B"-suffixed parts and confirms that the P6SMB480AHM3_D/I meets automotive reliability standards across its full electrical specification range.
What is the thermal resistance of the P6SMB480AHM3_D/I, and how does it affect PCB layout?
The P6SMB480AHM3_D/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, as specified in the Thermal Characteristics table on page 3. This value requires adequate copper area and minimal trace length to maintain TJ ≤ 150 °C under sustained 5.0 W power dissipation. The P6SMB480AHM3_D/I thermal performance is optimized for standard SMB land patterns without additional heatsinking.
How does the P6SMB480AHM3_D/I differ from the P6SMB480AHE3_D/I variant?
The P6SMB480AHM3_D/I is halogen-free and RoHS-compliant, whereas the P6SMB480AHE3_D/I is RoHS-compliant but not halogen-free. Both share identical electrical specifications, AEC-Q101 qualification ("D" suffix), and SMB package. The HM3 version satisfies stricter environmental mandates such as JEDEC JS709E and IPC-1752A for halogen content, making the P6SMB480AHM3_D/I appropriate for markets requiring full green compliance beyond basic RoHS.
P6SMB480AHM3_D/I 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:
- 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/I FAQ
1.How can I place an order for P6SMB480AHM3_D/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB480AHM3_D/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 P6SMB480AHM3_D/I reliable?
The price and inventory of P6SMB480AHM3_D/I 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/I is usually 5 days.
3.What payment methods are accepted for P6SMB480AHM3_D/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB480AHM3_D/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB480AHM3_D/I?
P6SMB480AHM3_D/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB480AHM3_D/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 P6SMB480AHM3_D/I?
For technical support, including P6SMB480AHM3_D/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB480AHM3_D/I requirements.
6.How does Aetrix verify that P6SMB480AHM3_D/I is sourced from the original manufacturer or authorized distributors?
All P6SMB480AHM3_D/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 P6SMB480AHM3_D/I meets industry standards.
7.What is the process for return or replacement of P6SMB480AHM3_D/I?
All P6SMB480AHM3_D/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB480AHM3_D/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 P6SMB480AHM3_D/I part is unused and in its original packaging.
Return procedure for P6SMB480AHM3_D/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB480AHM3_D/I Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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