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Vishay General Semiconductor - Diodes Division P4SMA480A-M3/5A
- Part No.:
- P4SMA480A-M3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA480A-M3/5A.pdf
- Description:
- TVS DIODE 408VWM 658VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,408
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Product details
Overview
P4SMA480A-M3/5A from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, rated for 480 V breakdown voltage (VBR = 456–504 V at IT = 1.0 mA), 408 V standoff voltage (VWM), 658 V clamping voltage (VC) at 0.46 A peak pulse current (IPPM), and 400 W peak pulse power (10/1000 µs waveform). It protects power rails and sensor interfaces in industrial motor drives against inductive switching transients.
For engineers reviewing the P4SMA480A-M3/5A datasheet, P4SMA480A-M3/5A pinout, P4SMA480A-M3/5A application, or P4SMA480A-M3/5A equivalent, key selection criteria include unidirectional polarity, halogen-free RoHS compliance (M3 suffix), AEC-Q101 qualification (B revision), thermal resistance (RθJA = 120 °C/W), and junction temperature limit of 150 °C.
Technical Context
This TVS diode operates as a clamping device that remains high-impedance below VWM = 408 V and rapidly avalanches above VBR to limit transient overvoltage. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM).
Designed for automated SMT assembly, it delivers 400 W peak pulse power under 10/1000 µs waveform with 0.01% duty cycle, derated linearly above TA = 25 °C per Fig. 2. The SMA package supports 0.2" × 0.2" copper pad layout for optimal thermal dissipation and meets UL 94 V-0 flammability rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 456 V / 504 V at 1.0 mA test current - defines reliable avalanche onset range for overvoltage clamping |
| VWM | 408 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC at IPPM | 658 V at 0.46 A - clamped voltage during 10/1000 µs surge, limiting downstream circuit stress |
| PPPM | 400 W - peak transient energy absorption capability under standard lightning/surge waveform |
| IFSM | 40 A - single half-sine surge current rating (8.3 ms), relevant for AC line fault protection |
| TJ max. | 150 °C - maximum junction temperature, constraining PCB copper area and ambient design |
| RθJA | 120 °C/W - thermal resistance from junction to ambient, guiding heatsinking requirements on standard pads |
Pinout & Package
Package: SMA (DO-214AC), 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 in forward bias; connected to protected circuit ground or low-side reference | Provides return path during clamping; must be routed with low-inductance trace to minimize overshoot |
| Cathode | Current exit terminal in forward bias; connected to protected line (e.g., 480 V DC bus) | Marked with band; reverse-biased during normal operation; conducts only during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on high-voltage DC lines |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets environmental compliance for industrial and automotive end equipment without compromising reliability |
| AEC-Q101 qualified (B revision) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per stress test standards |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage (<1 µA) across lifetime and temperature extremes |
| MSL Level 1 (J-STD-020) | Allows unlimited floor life and reflow at 260 °C peak without moisture-related popcorn failure |
Applications
| Industrial Motor Drive DC Bus Protection | Renewable Energy Inverter Input Stage |
|---|---|
|
Use Scenario: Suppresses turn-off spikes from IGBTs in 400–600 V DC bus systems during rapid load disconnection. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between DC+ and DC−, triggered within <1 ns of overvoltage event. Use Value: Limits transient voltage to ≤658 V, preventing gate oxide damage to downstream 650 V IGBTs and reducing snubber losses. |
Use Scenario: Protects MPPT controller input from lightning-induced surges on solar array strings operating up to 1000 VDC. IC Role / Device Role / Timing Role: Standoff-rated TVS mounted directly at array input terminals, absorbing multi-kA surge currents. Use Value: Withstands 400 W pulses while maintaining <1 µA leakage at 408 V, preserving MPPT efficiency and long-term insulation integrity. |
| High-Voltage Sensor Signal Conditioning | Telecom Power Shelf Transient Suppression |
|
Use Scenario: Shields isolated voltage dividers and ADC front-ends measuring 480 V AC mains in smart metering systems. IC Role / Device Role / Timing Role: Primary overvoltage clamp on high-side sense node, coordinated with secondary MOV and RC filter. Use Value: Fast response (<1 ns) and precise VBR (456–504 V) prevent ADC saturation while enabling ±1% measurement accuracy under surge conditions. |
Use Scenario: Guards -48 V telecom rectifier outputs against load dump and hot-swap transients in central office power shelves. IC Role / Device Role / Timing Role: Secondary-level TVS after primary bulk suppression, handling fast-rising edge transients missed by slower components. Use Value: Low incremental surge resistance minimizes clamping overshoot, keeping rail voltage within ±5% of nominal during 10/1000 µs 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 VBR range (456–504 V), but lower PPPM = 400 W and higher VC = 670 V; no AEC-Q101 qualification | Commercial-grade only; not validated for automotive temperature cycling or humidity testing | Select when AEC-Q101 is not required and board space allows same SMA footprint |
| 1.5SMC480A | Higher PPPM = 1500 W, larger SMC (DO-214AB) package, VC = 658 V, VWM = 408 V - identical clamping but 3.7× larger footprint | Used where higher surge margin is needed and PCB real estate permits larger package | Choose for enhanced surge endurance in utility-grade equipment where thermal mass matters more than size |
Compared with P4SMA480A-M3/5A, SMAJ480A offers identical electrical clamping but lacks automotive qualification and has slightly higher clamping voltage, while 1.5SMC480A trades compactness for 3.75× higher peak power handling in a physically larger package-making P4SMA480A-M3/5A optimal for space-constrained, AEC-Q101–required high-voltage DC protection.
Availability
P4SMA480A-M3/5A is available at Aetrix Electronics and suitable for industrial motor drives, renewable energy inverters, high-voltage sensor interfaces, and telecom power shelf designs requiring stable component supply, halogen-free compliance, and AEC-Q101 validation.
Supply support for P4SMA480A-M3/5A 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 performance.
The P4SMA Series targets high-reliability transient suppression in space-constrained, high-voltage environments-including automotive, industrial, and telecom-where consistent clamping, low leakage, and automated assembly compatibility are critical.
FAQ
What is the polarity configuration of P4SMA480A-M3/5A?
P4SMA480A-M3/5A is a unidirectional TVS diode, with cathode identified by a band marking on the SMA (DO-214AC) package. It conducts only in reverse breakdown during overvoltage events and blocks current up to 408 V in normal operation. This polarity enables targeted clamping on positive-rail transients without interfering with DC bias paths.
Does P4SMA480A-M3/5A meet automotive reliability standards?
Yes, P4SMA480A-M3/5A carries AEC-Q101 qualification (revision B), covering stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD. Its M3 suffix confirms halogen-free, RoHS-compliant construction, making it suitable for automotive body control modules and battery management systems operating up to 150 °C junction temperature.
What is the maximum clamping voltage of P4SMA480A-M3/5A under surge conditions?
The maximum clamping voltage (VC) of P4SMA480A-M3/5A is 658 V at IPPM = 0.46 A under a 10/1000 µs waveform. This value is guaranteed across manufacturing lot and temperature range, ensuring predictable overvoltage limiting for downstream 650 V-rated power devices in industrial and energy applications.
How does the thermal resistance of P4SMA480A-M3/5A affect PCB layout?
P4SMA480A-M3/5A has RθJA = 120 °C/W on standard 0.2" × 0.2" copper pads. To maintain TJ ≤ 150 °C at full 400 W surge, PCB layout must provide adequate copper area and airflow-or reduce duty cycle. For continuous operation, derating curves in Fig. 2 require thermal simulation to verify junction temperature margins.
Is P4SMA480A-M3/5A compatible with lead-free reflow processes?
Yes, P4SMA480A-M3/5A is rated for MSL Level 1 per J-STD-020 and supports peak reflow temperatures up to 260 °C. Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102, and whisker resistance meets JESD 201 Class 2-ensuring robust solder joint integrity in lead-free manufacturing environments.
P4SMA480A-M3/5A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- P4SMA, 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):
- 460mA
- Power - Peak Pulse:
- 300W
- 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-214AC (SMA)
P4SMA480A-M3/5A FAQ
1.How can I place an order for P4SMA480A-M3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA480A-M3/5A 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 P4SMA480A-M3/5A reliable?
The price and inventory of P4SMA480A-M3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA480A-M3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA480A-M3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA480A-M3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA480A-M3/5A?
P4SMA480A-M3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA480A-M3/5A 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 P4SMA480A-M3/5A?
For technical support, including P4SMA480A-M3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA480A-M3/5A requirements.
6.How does Aetrix verify that P4SMA480A-M3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA480A-M3/5A 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 P4SMA480A-M3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA480A-M3/5A?
All P4SMA480A-M3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA480A-M3/5A, 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 P4SMA480A-M3/5A part is unused and in its original packaging.
Return procedure for P4SMA480A-M3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA480A-M3/5A Tags
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