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Vishay General Semiconductor - Diodes Division P4SMA56CA-M3/61
- Part No.:
- P4SMA56CA-M3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA56CA-M3/61.pdf
- Description:
- TVS DIODE 47.8VWM 77VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P4SMA56CA-M3/61 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 or power lines. It features a 56 V breakdown voltage (VBR = 53.2–58.8 V at 1 mA), 77 V maximum clamping voltage (VC) at 5.2 A peak pulse current, 400 W peak pulse power (10/1000 µs), and SMA (DO-214AC) package. It is used to protect MOSFETs, ICs, and sensor signal lines in industrial and automotive electronics against ESD and inductive switching surges.
For engineers reviewing the P4SMA56CA-M3/61 datasheet, P4SMA56CA-M3/61 pinout, P4SMA56CA-M3/61 application, or P4SMA56CA-M3/61 equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, thermal derating curves, AEC-Q101 qualification status, and direct alternative part comparisons - all specific to the P4SMA56CA-M3/61 variant with halogen-free RoHS compliance and M3 suffix.
Technical Context
The P4SMA56CA-M3/61 operates as a bidirectional avalanche diode, symmetrically clamping transient voltages above ±56 V in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1 µA at 47.8 V), while its low incremental surge resistance enables fast response (<1 ns) and effective suppression of 10/1000 µs waveform transients.
Thermally, it exhibits RθJA = 120 °C/W (junction-to-ambient, on 0.2" × 0.2" copper pads) and RθJL = 30 °C/W (junction-to-lead), supporting continuous power dissipation of 3.3 W at TA = 50 °C. It is rated for operation from –65 °C to +150 °C and meets J-STD-020 MSL Level 1 (peak reflow ≤260 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 53.2 V / 58.8 V at IT = 1 mA - defines precise bidirectional avalanche initiation threshold for reliable overvoltage detection |
| VWM | 47.8 V - maximum steady-state reverse voltage before leakage exceeds 1 µA; sets safe operating margin below clamping |
| VC @ IPPM | 77 V at 5.2 A - clamped voltage during 400 W transient; determines protected circuit's maximum stress level |
| PPPM | 400 W (10/1000 µs) - peak transient energy handling capacity; supports robust protection in noisy industrial environments |
| IPPM | 5.2 A - peak pulse current capability; defines minimum trace width and PCB layout requirements for surge path |
| TJmax | +150 °C - maximum junction temperature; enables use in under-hood automotive or high-ambient industrial enclosures |
| Package | SMA (DO-214AC) - standardized SMD outline with 5.28 mm × 4.50 mm footprint; compatible with automated pick-and-place and reflow |
Pinout & Package
SMA (DO-214AC) surface-mount package: molded epoxy case with matte tin-plated leads, UL 94 V-0 rated, no polarity marking for bidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | Accepts negative-going surges; forms symmetrical conduction path with cathode in bidirectional mode |
| Cathode | Transient current entry (positive polarity) | Accepts positive-going surges; paired with anode to enable full-cycle clamping without external biasing |
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 | Withstands repetitive 10/1000 µs transients up to 0.01% duty cycle - suitable for motor drive and relay-switching environments |
| AEC-Q101 qualified (M3 suffix) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD47 |
| Halogen-free & RoHS-compliant | Meets IEC 61249-2-21 and JEDEC J-STD-20E; supports green manufacturing and end-of-life compliance |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes overvoltage overshoot during surge events - critical for protecting 3.3 V or 5 V logic interfaces |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN 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 pair or supply rail to clamp transients before they reach sensitive analog front-end or communication IC. Use Value: Withstands 400 W surges while limiting clamped voltage to 77 V - ensuring downstream 12 V-rated interface ICs remain within absolute maximum ratings. |
Use Scenario: Shielding digital input modules in programmable logic controllers from field-wiring induced transients (e.g., solenoid de-energization). IC Role / Device Role / Timing Role: Standalone transient suppressor mounted directly at terminal block or connector to shunt surge energy before entering optocoupler isolation stage. Use Value: Fast <1 ns response and low VC prevent false triggering of 24 V DC input circuits during 1 kV/50 Ω surge events per IEC 61000-4-5. |
| Consumer Power Adapter Output | Telecom Line Interface |
|
Use Scenario: Secondary-side overvoltage protection on 5 V/12 V USB-C or wall adapter outputs exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Parallel-connected TVS across output capacitor to clamp transient spikes caused by cable disconnect or ESD coupling. Use Value: 47.8 V stand-off voltage provides >20% margin above nominal 39 V max output of regulated adapters - avoiding leakage-related efficiency loss. |
Use Scenario: Primary protection for Ethernet PHY or DSL line drivers connected to unshielded outdoor cabling. IC Role / Device Role / Timing Role: First-stage TVS on line side of transformer or common-mode choke to absorb common-mode surges before differential receiver. Use Value: Symmetrical bidirectional structure handles both longitudinal and transverse surges without polarity constraints - simplifying board layout for dual-line interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58CA | Higher VBR (55–61 V), same VC (93.6 V), larger SMB package (DO-214AA), 600 W PPPM | Requires larger PCB area; better suited for higher-energy surges where 400 W is marginal | Select when surge energy exceeds 400 W but space allows SMB footprint and higher clamping is acceptable |
| 1.5KE56CA | Through-hole TO-218 package, identical VBR/VC, 1500 W PPPM, higher IPPM (27.5 A) | Not SMT-compatible; used in legacy or high-reliability through-hole designs with manual assembly | Choose only for through-hole production or when 1500 W surge rating is mandatory and SMT is not required |
Compared with SMBJ58CA and 1.5KE56CA, the P4SMA56CA-M3/61 offers optimal balance of compact SMA footprint, AEC-Q101 qualification, halogen-free compliance, and 400 W capability - making it preferred for space-constrained automotive and industrial SMT assemblies where moderate surge levels dominate.
Availability
P4SMA56CA-M3/61 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, consumer power adapter outputs, and telecom line interface circuits requiring stable component supply, halogen-free compliance, and AEC-Q101 reliability assurance.
Supply support for P4SMA56CA-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, TVS devices, and optoelectronics with emphasis on reliability, precision, and application-specific performance.
The P4SMA series was developed for high-volume surface-mount transient suppression in automotive, industrial, and computing systems - prioritizing low-profile packaging, repeatable clamping, and qualification to AEC-Q101 and RoHS standards.
FAQ
What is the breakdown voltage tolerance for P4SMA56CA-M3/61?
The P4SMA56CA-M3/61 has a specified breakdown voltage range of 53.2 V to 58.8 V at 1 mA test current, representing a ±5% tolerance around the nominal 56 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports predictable system-level overvoltage protection design for the P4SMA56CA-M3/61.
Is P4SMA56CA-M3/61 suitable for automotive applications?
Yes, the P4SMA56CA-M3/61 is AEC-Q101 qualified (as indicated by the M3 suffix), meaning it has passed stress tests including temperature cycling, high-temperature reverse bias, and ESD per JESD47. Its –65 °C to +150 °C operating range and halogen-free construction make it appropriate for under-hood and cabin-mounted automotive electronics where the P4SMA56CA-M3/61 is deployed.
How does the clamping voltage of P4SMA56CA-M3/61 compare to its breakdown voltage?
The P4SMA56CA-M3/61 clamps at 77 V when subjected to its rated 5.2 A peak pulse current (10/1000 µs), yielding a clamping ratio (VC/VBR) of approximately 1.37. This low ratio reflects efficient avalanche conduction and minimal voltage overshoot - a key design advantage of the P4SMA56CA-M3/61 for protecting 48 V nominal systems or 3.3 V/5 V logic rails via appropriate voltage dividers or regulators.
What is the maximum continuous power dissipation for P4SMA56CA-M3/61?
The P4SMA56CA-M3/61 has a maximum steady-state power dissipation (PD) of 3.3 W at ambient temperature TA = 50 °C, derating linearly above that point. This value assumes mounting on 0.2" × 0.2" copper pads per JEDEC standards and defines the upper limit for sustained leakage or small-signal transient conditions - distinct from its 400 W pulsed rating used for the P4SMA56CA-M3/61.
Does P4SMA56CA-M3/61 have polarity markings on the package?
No, the P4SMA56CA-M3/61 is a bidirectional TVS diode and carries no polarity marking on its SMA (DO-214AC) package. Unlike unidirectional variants (e.g., P4SMA56A), the CA suffix indicates symmetrical conduction in both directions - eliminating orientation concerns during placement and enabling simplified layout for AC or floating signal paths using the P4SMA56CA-M3/61.
P4SMA56CA-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:
- -
- 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-M3/61 FAQ
1.How can I place an order for P4SMA56CA-M3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA56CA-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 P4SMA56CA-M3/61 reliable?
The price and inventory of P4SMA56CA-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 P4SMA56CA-M3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA56CA-M3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA56CA-M3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA56CA-M3/61?
P4SMA56CA-M3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA56CA-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 P4SMA56CA-M3/61?
For technical support, including P4SMA56CA-M3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA56CA-M3/61 requirements.
6.How does Aetrix verify that P4SMA56CA-M3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA56CA-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 P4SMA56CA-M3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA56CA-M3/61?
All P4SMA56CA-M3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA56CA-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 P4SMA56CA-M3/61 part is unused and in its original packaging.
Return procedure for P4SMA56CA-M3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA56CA-M3/61 Tags
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