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Vishay General Semiconductor - Diodes Division P4SMA56CA-M3/5A
- Part No.:
- P4SMA56CA-M3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA56CA-M3/5A.pdf
- Description:
- TVS DIODE 47.8VWM 77VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,805
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Product details
Overview
P4SMA56CA-M3/5A from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P4SMA series, designed for clamping voltage transients on signal and power lines. It features a 56 V breakdown voltage (VBR = 53.2–58.8 V at IT = 1.0 mA), 77.0 V maximum clamping voltage (VC) at 5.2 A peak pulse current (IPPM), and 400 W peak pulse power rating with a 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor signal lines in industrial and automotive electronics.
For engineers reviewing the P4SMA56CA-M3/5A datasheet, P4SMA56CA-M3/5A pinout, P4SMA56CA-M3/5A application, or P4SMA56CA-M3/5A equivalent, this device delivers verified bidirectional surge suppression with halogen-free RoHS compliance, MSL Level 1 moisture sensitivity, and AEC-Q101 qualification readiness (via HM3 suffix variants), supporting robust ESD and lightning-induced transient protection in space-constrained layouts.
Technical Context
The P4SMA56CA-M3/5A operates as a bidirectional avalanche diode, symmetrically clamping voltage surges in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance, enabling fast response (<1 ns) to transients induced by inductive switching or ESD events.
Rated for 150 °C maximum junction temperature and mounted on 5.0 mm × 5.0 mm copper pads, it delivers 400 W peak pulse power (derated to 300 W above 91 V) with thermal resistance RθJA = 120 °C/W and RθJL = 30 °C/W - confirming suitability for moderate-power transient suppression without active cooling in commercial and automotive-grade designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 53.2 V / 58.8 V at IT = 1.0 mA - defines precise clamping onset threshold for bidirectional overvoltage events |
| VWM | 47.8 V - maximum continuous reverse working voltage before leakage exceeds 1.0 µA, setting safe operating margin below VBR |
| VC @ IPPM | 77.0 V at 5.2 A - clamped voltage during 10/1000 µs surge, limiting stress on downstream ICs or MOSFETs |
| PPPM | 400 W - peak transient energy absorption capability under standard 10/1000 µs waveform, derated above 91 V |
| IPPM | 5.2 A - maximum non-repetitive surge current the device safely conducts without degradation |
| Junction Temp Range | –65 °C to +150 °C - supports operation in extended-temperature environments including under-hood automotive locations |
| Package | SMA (DO-214AC) - industry-standard surface-mount outline with 5.28 mm length, 4.50 mm width, and 2.29 mm height for automated placement |
Pinout & Package
SMA (DO-214AC) package: molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1 compliant, and compatible with J-STD-002 solderability standards. Bidirectional construction means no cathode/anode marking; terminals are electrically symmetrical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode / Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity - no polarity dependency in circuit layout |
| Terminal 2 | Anode / Cathode (bidirectional) | Electrically identical to Terminal 1; device functions identically regardless of orientation in PCB layout |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| 400 W peak pulse power | Handles high-energy transients from inductive load switching (e.g., solenoids, relays) in industrial controls |
| Glass-passivated junction | Ensures long-term stability of VBR and low leakage (<1 µA at VWM) across temperature and lifetime |
| Halogen-free & RoHS-compliant (M3) | Meets environmental compliance requirements for consumer, telecom, and automotive supply chains |
| AEC-Q101 qualification path | HM3 suffix variants are qualified for automotive applications; M3 base enables drop-in qualification readiness |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential signal pairs or supply rails to clamp transients before they reach sensitive analog front-ends. Use Value: Limits clamped voltage to 77.0 V while absorbing 400 W surges - preventing latch-up or gate oxide damage in 12 V/24 V automotive systems. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and motor drive noise. IC Role / Device Role / Timing Role: Mounted at connector entry points to shunt inductive kickback away from microcontroller GPIOs and optocoupler inputs. Use Value: Fast <1 ns response and 5.2 A IPPM capability suppress 10/1000 µs transients without affecting 1 ms scan cycle timing integrity. |
| Telecom Line Interface | Consumer Power Adapter Output |
|
Use Scenario: Shielding Ethernet PHY interfaces and RS-485 transceivers from ESD and lightning-induced surges in outdoor network equipment. IC Role / Device Role / Timing Role: Placed differential-mode across data lines (e.g., A/B pins) to maintain signal integrity while diverting common-mode surges to ground. Use Value: Symmetric 47.8 V VWM and 77.0 V VC ensure no DC bias shift and minimal capacitive loading (<100 pF typical) on 100 Ω differential lines. |
Use Scenario: Secondary-side overvoltage protection on 5 V/12 V DC outputs of wall adapters and USB PD chargers. IC Role / Device Role / Timing Role: Clamps output rail transients caused by sudden load removal or feedback loop instability in switching regulators. Use Value: 400 W rating handles worst-case overshoot events without thermal runaway, while SMA footprint fits tight spacing near output connectors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58CA | Higher 58 V VBR range (55.1–60.9 V), 600 W PPPM, SMB package (larger footprint, lower RθJA) | Better suited for higher-energy transients where board area permits larger package | Select when >400 W surge margin is required and PCB layout allows SMB (DO-214AA) footprint |
| 1.5KE56CA | Through-hole DO-15 package, same 56 V rating, 1500 W PPPM, higher IPPM (27.3 A) | Designed for legacy through-hole assembly or high-reliability power supply inputs | Choose for prototyping, high-surge test fixtures, or where manual rework or mechanical robustness outweighs SMT density needs |
Compared with SMBJ58CA and 1.5KE56CA, P4SMA56CA-M3/5A offers optimal balance of compact SMA footprint, halogen-free compliance, and verified 400 W transient handling - making it preferred for high-density, RoHS-aligned industrial and automotive PCBs where space and regulatory alignment are critical.
Availability
P4SMA56CA-M3/5A is available at Aetrix Electronics and suitable for industrial PLCs, automotive sensor modules, telecom line cards, and consumer power adapters requiring stable component supply with halogen-free and RoHS-compliant sourcing.
Supply support for P4SMA56CA-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, rectifiers, MOSFETs, and passive components with emphasis on reliability, efficiency, and application-specific performance.
The P4SMA series is engineered for cost-effective, high-volume transient suppression in space-constrained surface-mount applications - targeting automotive, industrial control, and communications infrastructure where consistent clamping and AEC-Q101 readiness matter.
FAQ
What is the breakdown voltage tolerance for P4SMA56CA-M3/5A?
The P4SMA56CA-M3/5A has a specified breakdown voltage range of 53.2 V to 58.8 V at a test current of 1.0 mA, per Vishay's datasheet revision 09-Jan-2024. This ±5% tolerance ensures predictable clamping behavior across manufacturing lots and temperature ranges, critical for designing reliable overvoltage protection margins in circuits using P4SMA56CA-M3/5A.
Is P4SMA56CA-M3/5A suitable for automotive applications?
P4SMA56CA-M3/5A is halogen-free and RoHS-compliant, and belongs to the AEC-Q101-qualified P4SMA family - with HM3 suffix variants explicitly certified. While the M3 suffix itself denotes halogen-free commercial grade, its construction (glass-passivated junction, 150 °C TJ, MSL Level 1) aligns with automotive stress requirements, making P4SMA56CA-M3/5A a common choice for non-safety-critical automotive subsystems pending final qualification validation.
How does the clamping voltage of P4SMA56CA-M3/5A compare to its breakdown voltage?
P4SMA56CA-M3/5A clamps at 77.0 V when subjected to its rated 5.2 A peak pulse current (10/1000 µs waveform), which is approximately 37% above its minimum breakdown voltage of 53.2 V. This VC/VBR ratio reflects low incremental resistance and efficient energy diversion - ensuring protected ICs see minimal overvoltage stress during surge events involving P4SMA56CA-M3/5A.
What is the maximum steady-state power dissipation for P4SMA56CA-M3/5A?
The P4SMA56CA-M3/5A has a maximum steady-state power dissipation (PD) of 3.3 W at TA = 50 °C on an infinite heatsink. In typical PCB layouts with 5.0 mm × 5.0 mm copper pads per terminal, derating applies per Figure 2 in the datasheet - meaning actual continuous power handling is lower, and P4SMA56CA-M3/5A is intended for transient, not continuous, power dissipation.
Does P4SMA56CA-M3/5A require orientation during PCB placement?
No - P4SMA56CA-M3/5A is a bidirectional TVS diode with no polarity marking or functional anode/cathode distinction. Its terminals are electrically symmetrical, so PCB layout requires no orientation check; either end connects equivalently to line and return paths. This simplifies automated placement and eliminates risk of reverse installation errors in designs using P4SMA56CA-M3/5A.
P4SMA56CA-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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 47.8V
- Voltage - Breakdown (Min):
- 53.2V
- Voltage - Clamping (Max) @ Ipp:
- 77V
- Current - Peak Pulse (10/1000µs):
- 5.2A
- Power - Peak Pulse:
- 400W
- 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)
P4SMA56CA-M3/5A FAQ
1.How can I place an order for P4SMA56CA-M3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA56CA-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 P4SMA56CA-M3/5A reliable?
The price and inventory of P4SMA56CA-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 P4SMA56CA-M3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA56CA-M3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA56CA-M3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA56CA-M3/5A?
P4SMA56CA-M3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA56CA-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 P4SMA56CA-M3/5A?
For technical support, including P4SMA56CA-M3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA56CA-M3/5A requirements.
6.How does Aetrix verify that P4SMA56CA-M3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA56CA-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 P4SMA56CA-M3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA56CA-M3/5A?
All P4SMA56CA-M3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA56CA-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 P4SMA56CA-M3/5A part is unused and in its original packaging.
Return procedure for P4SMA56CA-M3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA56CA-M3/5A Tags
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