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Vishay General Semiconductor - Diodes Division P4SMA480A-M3/61
- Part No.:
- P4SMA480A-M3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA480A-M3/61.pdf
- Description:
- TVS DIODE 408VWM 658VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P4SMA480A-M3/61 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-voltage transient protection with 480 V standoff voltage (VWM), 504 V minimum breakdown voltage (VBR), and 658 V maximum clamping voltage (VC) at 0.46 A peak pulse current (IPPM). It delivers 400 W peak pulse power (10/1000 µs waveform) and operates across -65 °C to +150 °C junction temperature range, deployed in industrial power supply input stages and telecom line interfaces.
For engineers reviewing the P4SMA480A-M3/61 datasheet, P4SMA480A-M3/61 pinout, P4SMA480A-M3/61 application, or P4SMA480A-M3/61 equivalent, key selection criteria include clamping voltage margin relative to protected IC's absolute maximum rating, thermal resistance (RθJA = 120 °C/W), halogen-free RoHS compliance (M3 suffix), and unidirectional polarity marking for correct PCB orientation.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 µA leakage at 408 V), then rapidly avalanches below its 504 V VBR to clamp transients. Its glass-passivated junction ensures stable breakdown and low incremental surge resistance, critical for consistent clamping performance during repetitive surges.
Designed for surface-mount automation, the device meets MSL Level 1 per J-STD-020 with 260 °C reflow peak, and supports bidirectional variants via CA suffix (not applicable to P4SMA480A-M3/61). Its 120 °C/W junction-to-ambient thermal resistance requires careful copper pad layout (0.2" × 0.2") to sustain 3.3 W steady-state dissipation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 408 V - Maximum continuous reverse voltage before conduction begins; defines upper operating limit for protected circuit. |
| VBR (Breakdown Voltage) | 456–504 V at 1 mA - Confirmed avalanche onset range; ensures reliable triggering above system nominal voltage. |
| VC (Clamping Voltage) | 658 V at IPPM = 0.46 A - Peak voltage seen by downstream components during 10/1000 µs surge; determines protection margin. |
| PPPM (Peak Pulse Power) | 400 W - Sustained transient energy absorption capability under standard 10/1000 µs waveform; derates above 25 °C. |
| RθJA | 120 °C/W - Junction-to-ambient thermal resistance; mandates ≥5 mm × 5 mm copper pads per terminal for thermal management. |
| TJ max. | +150 °C - Maximum allowable junction temperature; sets upper boundary for ambient + self-heating in sealed enclosures. |
| Package | SMA (DO-214AC) - Low-profile, industry-standard SMD outline with cathode band marking; compatible with automated pick-and-place. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, unidirectional configuration with cathode band marking on one end. Dimensions: 4.93 mm × 3.99 mm × 2.29 mm (L × W × H); matte tin-plated leads, solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side of protected line; not used in reverse-biased TVS operation. |
| Cathode | Current exit point during reverse avalanche | Marked with band; connected to higher-potential side (e.g., VBUS or signal line) to shunt surges to ground. |
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) without degradation over rated duty cycle. |
| Glass passivated chip junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets environmental compliance requirements for industrial and automotive applications without compromising performance. |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free assembly processes without preconditioning or special handling. |
| AEC-Q101 qualified (B revision) | Validated for automotive-grade reliability including HTOL, temperature cycling, and ESD testing per stress test plan. |
Applications
| Industrial AC/DC Power Input | Telecom Line Interface Protection |
|---|---|
Use Scenario: Protecting rectifier outputs and bulk capacitor inputs in DIN-rail power supplies exposed to lightning-induced surges on 400 VAC mains. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between DC bus and chassis ground to clamp differential-mode transients. Use Value: Clamps 400 V surges to ≤658 V, preserving downstream MOSFETs and controller ICs rated for 700 V absolute maximum. |
Use Scenario: Safeguarding Ethernet PHY interface circuits in outdoor base stations subjected to induced surges from nearby lightning strikes. IC Role / Device Role / Timing Role: High-VWM TVS on PoE+ (IEEE 802.3at) data lines to suppress common-mode transients without affecting 57 V DC bias. Use Value: Withstands 408 V continuous bias while clamping 1 kV/500 Ω transients within safe voltage margins for Gigabit Ethernet magnetics. |
| High-Voltage Motor Drive DC Link | Renewable Energy Inverter Input |
Use Scenario: Shielding IGBT gate drivers and current-sense amplifiers in 690 VAC industrial drives from switching-induced dv/dt spikes. IC Role / Device Role / Timing Role: Fast-response TVS on isolated feedback paths to prevent false triggering during 100 ns rise-time transients. Use Value: Sub-1 ns response time and low clamping overshoot preserve timing integrity of isolated gate signals under 10 kV/µs edge rates. |
Use Scenario: Protecting MPPT controller inputs in solar string inverters where PV array open-circuit voltage reaches 1000 VDC. IC Role / Device Role / Timing Role: Standoff-rated TVS on voltage-sense divider network to block transients while maintaining <1 µA leakage at 408 V. Use Value: Ultra-low leakage preserves measurement accuracy of high-impedance dividers used for ±0.1% voltage regulation. |
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 (408 V), but lower PPPM (400 W vs. P4SMA480A-M3/61's 400 W), identical DO-214AC package and RθJA. | No AEC-Q101 qualification; limited to commercial-grade industrial use, not automotive. | Select SMAJ480A only when AEC-Q101 is not required and cost sensitivity outweighs qualification needs. |
| SMCJ480A | Higher PPPM (1500 W), larger SMC (DO-214AB) package, same VWM/VBR/VC specs, RθJA = 25 °C/W. | Requires PCB redesign due to 7.11 mm × 6.22 mm footprint; suited for higher-energy surge environments. | Choose SMCJ480A when system-level surge testing exceeds IEC 61000-4-5 Level 4 and thermal budget allows larger heatsinking. |
Compared with SMAJ480A, P4SMA480A-M3/61 adds AEC-Q101 qualification and halogen-free compliance; compared with SMCJ480A, it trades peak power for compact size and lower thermal mass-ideal for space-constrained, automotive-qualified designs.
Availability
P4SMA480A-M3/61 is available at Aetrix Electronics and suitable for industrial power supplies, telecom infrastructure equipment, renewable energy inverters, and automotive ECUs requiring stable component supply with full traceability and lifecycle continuity.
Supply support for P4SMA480A-M3/61 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA Series targets high-voltage transient suppression in space-constrained SMT applications, balancing clamping performance, thermal robustness, and compliance for industrial, telecom, and automotive systems.
FAQ
What is the maximum clamping voltage of the P4SMA480A-M3/61 under a 10/1000 µs surge?
The P4SMA480A-M3/61 has a maximum clamping voltage (VC) of 658 V at its rated peak pulse current (IPPM) of 0.46 A under the standardized 10/1000 µs waveform. This value is measured with the device mounted on 0.2" × 0.2" copper pads per terminal and represents the highest voltage imposed on protected circuitry during surge events. The P4SMA480A-M3/61 maintains this clamping performance across its specified operating temperature range.
Is the P4SMA480A-M3/61 suitable for automotive applications?
Yes, the P4SMA480A-M3/61 is AEC-Q101 qualified (revision B), making it suitable for automotive applications such as battery management systems, ADAS power rails, and infotainment power inputs. Its halogen-free (M3) construction, MSL Level 1 reflow compatibility, and guaranteed operation from -65 °C to +150 °C junction temperature meet stringent automotive reliability requirements. The P4SMA480A-M3/61 is explicitly listed in Vishay's AEC-Q101 qualified P4SMA family documentation.
How does the P4SMA480A-M3/61 differ from bidirectional variants like P4SMA480CA?
The P4SMA480A-M3/61 is unidirectional, featuring a cathode band for polarity-sensitive placement and conducting only in reverse avalanche mode. In contrast, P4SMA480CA is bidirectional with symmetrical clamping in both directions and no polarity marking. The P4SMA480A-M3/61 offers higher VWM (408 V) than the bidirectional version (max 185 V), making it appropriate for high-voltage DC line protection where polarity is fixed and reverse conduction must be blocked.
What is the thermal resistance and recommended PCB layout for the P4SMA480A-M3/61?
The P4SMA480A-M3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W, measured with 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain safe junction temperatures under continuous 3.3 W power dissipation, designers must implement these pad dimensions and ensure adequate board-level copper area or thermal vias. The P4SMA480A-M3/61 datasheet specifies this layout as mandatory for rated thermal performance.
Does the P4SMA480A-M3/61 have RoHS and halogen-free compliance?
Yes, the "M3" suffix in P4SMA480A-M3/61 explicitly denotes halogen-free, RoHS-compliant construction per Vishay's material categorization standards. This includes bromine- and chlorine-free molding compounds and lead-free matte tin plating on terminals, satisfying EU RoHS Directive 2011/65/EU and JEDEC JS709E requirements. The P4SMA480A-M3/61 is certified for commercial-grade applications with full compliance documentation available from Vishay.
P4SMA480A-M3/61 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-M3/61 FAQ
1.How can I place an order for P4SMA480A-M3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA480A-M3/61 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-M3/61 reliable?
The price and inventory of P4SMA480A-M3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA480A-M3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA480A-M3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA480A-M3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA480A-M3/61?
P4SMA480A-M3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA480A-M3/61 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-M3/61?
For technical support, including P4SMA480A-M3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA480A-M3/61 requirements.
6.How does Aetrix verify that P4SMA480A-M3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA480A-M3/61 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-M3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA480A-M3/61?
All P4SMA480A-M3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA480A-M3/61, 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-M3/61 part is unused and in its original packaging.
Return procedure for P4SMA480A-M3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA480A-M3/61 Tags
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