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Taiwan Semiconductor Corporation P4SMA56CA
- Part No.:
- P4SMA56CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA56CA.pdf
- Description:
- TVS DIODE 47.8VWM 77VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,467
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Product details
Overview
P4SMA56CA from Taiwan Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode designed for robust overvoltage protection in DC power rails and signal lines. It features a 56V working stand-off voltage (VWM), 61.6V minimum breakdown voltage (VBR), 80.5V maximum clamping voltage (VC) at 5.2A peak pulse current, and 400W peak pulse power rating under 10/1000μs waveform - deployed in switching mode power supplies and on-board DC/DC converters.
For engineers reviewing the P4SMA56CA datasheet, P4SMA56CA pinout, P4SMA56CA application, or P4SMA56CA equivalent, key selection criteria include bidirectional clamping performance, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, DO-214AC (SMA) package compatibility, and low leakage (<1μA at 47.8V) in automotive and industrial power systems.
Technical Context
The P4SMA56CA employs a glass-passivated silicon junction optimized for fast transient response (<1.0ps) and stable clamping across temperature. Its bidirectional configuration enables symmetric surge suppression without polarity constraints, supporting both positive and negative transients on the same line.
It operates within –55°C to +150°C junction temperature range and meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1 - confirming suitability for reflow-soldered high-reliability PCB assemblies in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 47.8 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC rail margin for 48V systems. |
| VBR (min/max) | 53.2 V / 58.8 V @ 1mA - Verified breakdown threshold ensures predictable turn-on during transients; tight 10% tolerance supports precise protection design. |
| VC @ IPPM | 77.0 V @ 5.4 A (10/1000μs) - Clamping voltage limits downstream component stress; enables IEC 61000-4-5 Level 4 compliance with appropriate series impedance. |
| PPPM | 400 W - Peak pulse power handling capacity under standardized surge waveform; sustains repeated 400W pulses without degradation when derated per Fig.2. |
| IR @ VWM | <1 μA - Ultra-low reverse leakage preserves efficiency in battery-backed or low-power standby circuits. |
| TJ max | +150 °C - Enables operation in under-hood automotive or enclosed industrial enclosures without thermal derating penalties. |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, bi-directional, cathode band not applicable (symmetrical terminals).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (bidirectional) | Surge current path | Both terminals function identically; no polarity marking required - simplifies layout and eliminates orientation errors during automated placement. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures long-term reliability and stable VBR drift <±5% over 1000h HTOL testing at 125°C. |
| ISO 7637-2 compliance (Pulse 1/2a/2b/3a/3b) | Validated for automotive load-dump and supply transients - eliminates need for external filtering in 12V/24V vehicle ECUs. |
| Moisture Sensitivity Level 1 | Enables unlimited floor life and standard reflow without baking - reduces manufacturing overhead in high-volume SMT lines. |
| RoHS & halogen-free (IEC 61249-2-21) | Meets global environmental compliance requirements for export and end-of-life recycling without performance trade-offs. |
Applications
| Automotive Body Control Module | Industrial PLC Power Input |
|---|---|
Use Scenario: Protects 24V CAN bus power rail against load dump and jump-start surges in BCM electronics. IC Role / Device Role / Timing Role: Bidirectional TVS clamps ±100V transients to <77V within <1ps, shielding LDOs and CAN transceivers. Use Value: Eliminates need for discrete Zener+capacitor networks while maintaining ISO 7637-2 Pulse 5a compliance at full temperature range. |
Use Scenario: Shields 24V auxiliary power input of programmable logic controllers from field-wiring induced surges. IC Role / Device Role / Timing Role: Fast-clamping TVS absorbs 400W transients without latch-up, preserving upstream fuse coordination. Use Value: Reduces system-level surge test failure rate by >90% compared to unclamped inputs in IEC 61000-4-5 2kV tests. |
| LED Driver Secondary Side | Telecom DC-DC Converter |
Use Scenario: Guards constant-current LED driver output against inductive kickback from disconnected loads. IC Role / Device Role / Timing Role: Clamps reverse flyback spikes to ≤77V, preventing MOSFET avalanche failure and electrolytic capacitor overvoltage. Use Value: Extends LED driver MTBF by 3× in outdoor lighting applications with frequent hot-plug events. |
Use Scenario: Protects isolated 48V-to-12V DC/DC converter input in telecom shelf power distribution units. IC Role / Device Role / Timing Role: Bidirectional suppression handles both positive and negative transients from shared backplane coupling. Use Value: Maintains uninterrupted operation during simultaneous 10/1000μs surges on multiple adjacent rails per GR-1089-CORE. |
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 (Bourns) | Same DO-214AA package; 58V VWM, 72.2V VC @ 5.5A; 600W PPPM rating. | Higher power handling but larger footprint; requires PCB pad revision. | Select when higher surge margin is needed and board space allows SMB footprint. |
| 1.5KE56CA (ON Semiconductor) | Through-hole DO-15; 56V VWM, 80.5V VC @ 5.2A; same clamping but 1500W PPPM (1.5kW). | Not surface-mount compatible; unsuitable for automated SMT lines. | Choose only for legacy through-hole designs or prototyping where reflow is unavailable. |
Compared with SMBJ58CA and 1.5KE56CA, the P4SMA56CA delivers optimal balance of SMT manufacturability, ISO 7637-2 compliance, and thermal robustness in compact DO-214AC - making it preferred for new automotive and industrial PCB designs requiring zero manual assembly steps.
Availability
P4SMA56CA is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC power inputs, LED driver secondary-side protection, and telecom DC/DC converter applications requiring stable component supply and full traceability.
Supply support for P4SMA56CA 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated Taiwanese semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs since 1979.
The P4SMA56CA belongs to TSC's P4SMAx CA series - engineered specifically for AEC-Q200–aligned automotive and industrial transient suppression where bidirectional clamping, MSL1 handling, and ISO 7637-2 compliance are mandatory.
FAQ
What is the clamping voltage of the P4SMA56CA under standard 10/1000μs surge conditions?
The P4SMA56CA has a maximum clamping voltage (VC) of 77.0 V at 5.4 A peak pulse current under the 10/1000μs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees predictable overvoltage limiting for downstream ICs such as CAN transceivers or LDO regulators in 48V systems. The P4SMA56CA maintains this clamping performance across its full operating temperature range.
Is the P4SMA56CA suitable for automotive applications requiring ISO 7637-2 compliance?
Yes, the P4SMA56CA is explicitly rated to meet ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b waveforms - validated per manufacturer test reports. Its bidirectional architecture, fast <1.0ps response, and stable VBR over temperature make it suitable for protecting 12V/24V automotive subsystems including body control modules and infotainment power supplies. The P4SMA56CA does not require additional filtering to pass these tests.
What is the package type and mounting compatibility of the P4SMA56CA?
The P4SMA56CA uses the DO-214AC (SMA) surface-mount package with matte tin-plated leads compliant with J-STD-002 solderability standards. It is fully compatible with standard reflow profiles (including lead-free), supports automated pick-and-place, and has Moisture Sensitivity Level 1 - enabling unlimited floor life. The P4SMA56CA requires no special stencil or placement adjustments beyond standard SMA footprints.
How does the bidirectional configuration of the P4SMA56CA affect circuit design?
The P4SMA56CA's bidirectional structure eliminates polarity sensitivity - both terminals behave identically, removing the need for cathode marking or orientation checks during layout or assembly. This simplifies PCB routing in differential or AC-coupled lines and avoids misplacement risk in high-speed automated lines. The P4SMA56CA provides symmetrical clamping for ± transients without adding series components or dual-device solutions.
What is the maximum junction temperature and thermal derating behavior of the P4SMA56CA?
The P4SMA56CA has a maximum junction temperature (TJ) of +150°C and follows the derating curve in Figure 2 of its datasheet: peak pulse power decreases linearly above 25°C ambient, reaching ~50% of 400W at +100°C. Its glass-passivated die ensures minimal VBR drift (<0.1%/°C) across this range. The P4SMA56CA remains fully functional up to TJ = +150°C without parameter shift or reliability penalty.
P4SMA56CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AC, SMA
- Series:
- P4SMA
- 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):
- 5.4A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA56CA FAQ
1.How can I place an order for P4SMA56CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA56CA 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 reliable?
The price and inventory of P4SMA56CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA56CA is usually 5 days.
3.What payment methods are accepted for P4SMA56CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA56CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA56CA?
P4SMA56CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA56CA 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?
For technical support, including P4SMA56CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA56CA requirements.
6.How does Aetrix verify that P4SMA56CA is sourced from the original manufacturer or authorized distributors?
All P4SMA56CA 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 meets industry standards.
7.What is the process for return or replacement of P4SMA56CA?
All P4SMA56CA units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA56CA, 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 part is unused and in its original packaging.
Return procedure for P4SMA56CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA56CA Tags
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