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Taiwan Semiconductor Corporation P4SMA11C
- Part No.:
- P4SMA11C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA11C.pdf
- Description:
- 400W, 11V, 10%, BIDIRECTIONAL, T
- Quantity:
- Payment:
- Shipping:
Inventory:3,650
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Product details
Overview
P4SMA11C from Taiwan Semiconductor is a unidirectional 400W surface-mount transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, with a working stand-off voltage of 8.92 V, breakdown voltage range of 9.90–12.10 V at 1.0 mA test current, and clamping voltage of 16.2 V at 26 A peak pulse current. It protects DC power rails in switching mode power supplies and on-board DC/DC converters against ESD and surge transients.
For engineers reviewing the P4SMA11C datasheet, P4SMA11C pinout, P4SMA11C application, or P4SMA11C equivalent, key selection criteria include its 400 W peak pulse power rating (10/1000 µs), <1 µA reverse leakage at VWM, ±5% VBR tolerance, bidirectional capability (C suffix), and compliance with ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive electronics.
Technical Context
The P4SMA11C is a unidirectional TVS diode configured as a single silicon junction with glass passivation, optimized for fast transient suppression in low-voltage DC systems. Its clamping behavior is defined by a 10/1000 µs double-exponential surge waveform, delivering 16.2 V clamping at 26 A while maintaining sub-1 µA leakage above 10 V.
It operates across –55 °C to +150 °C junction temperature, supports automated SMT placement, and meets J-STD-020 moisture sensitivity level 1. The device's 0.060 g mass and UL 94V-0 molding compound support compact, high-reliability board-level protection in space-constrained industrial and automotive modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.92 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 9.90–12.10 V @ 1.0 mA - Confirmed breakdown threshold range for reliable overvoltage triggering |
| VC @ IPPM | 16.2 V @ 26 A - Clamped voltage during 400 W 10/1000 µs surge, limiting downstream stress |
| IR @ VWM | <1 µA - Negligible leakage current ensures minimal standby power loss in battery-powered systems |
| PPPM | 400 W - Peak pulse power handling per single non-repetitive 10/1000 µs transient |
| TJ max | +150 °C - Enables operation in under-hood automotive or high-ambient industrial environments |
| Package | DO-214AC (SMA) - Standardized SMT footprint compatible with JEDEC MS-013AC and IPC-7351B land patterns |
Pinout & Package
DO-214AC (SMA) surface-mount package with cathode band marking; two-terminal unidirectional configuration. Matte tin-plated leads meet J-STD-002 solderability requirements and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input reference node for transient path | Connected to protected line (e.g., +12 V rail); conducts surge current toward ground when VAK exceeds VBR |
| Cathode | Clamp return path | Connected to system ground; establishes low-impedance discharge path for ESD/surge energy into PCB ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR and low leakage over temperature and lifetime, critical for long-term reliability in industrial power supplies |
| Fast response time <1.0 ps | Enables effective suppression of nanosecond-scale ESD events before sensitive ICs experience overstress |
| ISO 7637-2 compliance (Pulse 1/2a/2b/3a/3b) | Validated for automotive load-dump and supply-line transient immunity without external filtering |
| RoHS & halogen-free | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally compliant manufacturing |
| Moisture sensitivity level 1 | Eliminates bake requirements prior to reflow, reducing assembly cost and process complexity |
Applications
| Switching Mode Power Supply (SMPS) | On-Board DC/DC Converter |
|---|---|
Use Scenario: Protection of primary-side input rectifier and secondary-side synchronous rectifier nodes against line surges and coupling transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed across input capacitor or MOSFET drain-source to clamp voltage spikes during MOSFET turn-off or transformer flyback. Use Value: Limits transient overshoot to ≤16.2 V, preventing gate oxide rupture in 20 V-rated MOSFETs and ensuring >100 k-cycle surge endurance per IEC 61000-4-5. | Use Scenario: Input rail protection in point-of-load (POL) converters powering FPGAs or microcontrollers in telecom base stations. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between VIN and GND to absorb coupled noise from adjacent switching regulators and hot-swap events. Use Value: Maintains <1 µA leakage at 8.92 V, avoiding quiescent current penalty in always-on 5 V or 3.3 V auxiliary rails. |
| Automotive Body Control Module | LED Driver Power Input |
Use Scenario: Load-dump suppression on 12 V battery-fed circuits such as window lift motor drivers or door lock actuators. IC Role / Device Role / Timing Role: Primary surge clamp on main power input, coordinated with upstream fuse and downstream L-C filter per ISO 7637-2 Pulse 5a. Use Value: Withstands 400 W peak power at 125 °C ambient, meeting AEC-Q200 stress test requirements for under-dash mounting locations. | Use Scenario: Overvoltage protection for constant-current LED driver ICs powered from 24 V industrial lighting bus. IC Role / Device Role / Timing Role: Bidirectional clamping (enabled by C suffix) across input terminals to handle both positive and negative transients from relay coil back-EMF or cable disconnect events. Use Value: 16.2 V clamping ensures LED string forward voltage remains within safe margin of driver IC's absolute maximum rating (e.g., 20 V). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11A | 600 W rating, DO-214AA package, VC = 17.0 V @ 35 A, tighter VBR tolerance (±5%) | Higher power handling but larger footprint; better suited for 24 V systems with higher surge energy | Select SMBJ11A when system-level surge testing requires >400 W margin or board layout allows DO-214AA pad size |
| 1.5KE11CA | Through-hole TO-204AA (DO-41), 1500 W rating, VC = 18.2 V @ 82.5 A, higher thermal mass | Not SMT-compatible; used in legacy designs or high-energy industrial controls where reflow is not feasible | Choose 1.5KE11CA only for through-hole prototyping or repair of existing DO-41-based assemblies |
Compared with P4SMA11C, SMBJ11A offers higher surge capacity in a slightly larger SMT package, while 1.5KE11CA provides legacy through-hole compatibility and greater thermal inertia-but neither matches the P4SMA11C's combination of 400 W rating, DO-214AC footprint, and ISO 7637-2 validation for modern automotive SMT designs.
Availability
P4SMA11C is available at Aetrix Electronics and suitable for switching mode power supplies, on-board DC/DC converters, and automotive body control modules requiring stable component supply with full traceability and lifecycle management.
Supply support for P4SMA11C 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 semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs for industrial, automotive, and consumer applications.
The P4SMA series is part of TSC's surface-mount TVS portfolio designed specifically for high-reliability, automated assembly in automotive-grade and industrial power conversion systems requiring ISO 7637-2 compliance and AEC-Q200 readiness.
FAQ
What is the polarity configuration of the P4SMA11C?
The P4SMA11C is a unidirectional TVS diode, indicated by the "C" suffix denoting cathode-band-marked polarity. It conducts surge current only when anode-to-cathode voltage exceeds the breakdown threshold (9.90–12.10 V), making it suitable for DC rail protection where polarity is fixed. Unlike bidirectional variants (e.g., P4SMA11CA), the P4SMA11C does not suppress negative transients unless paired with a complementary device.
Does the P4SMA11C meet automotive transient immunity standards?
Yes, the P4SMA11C meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements for electrical disturbances in road vehicles. Its 400 W peak pulse power rating, 16.2 V clamping voltage at 26 A, and –55 °C to +150 °C operating range enable direct use in automotive body control modules and infotainment power inputs without additional filtering-provided layout follows recommended trace width and ground plane guidelines.
What is the maximum clamping voltage of the P4SMA11C under surge conditions?
The maximum clamping voltage of the P4SMA11C is 16.2 V, measured at 26 A peak impulse current using the standardized 10/1000 µs double-exponential waveform. This value represents the upper limit of voltage seen by downstream circuitry during worst-case transient events and must be compared against the absolute maximum ratings of protected ICs-such as 20 V-rated MOSFETs or 18 V-input PMICs-to ensure safe operating margins.
How does the P4SMA11C compare to the P4SMA11A in terms of breakdown voltage tolerance?
The P4SMA11C has a breakdown voltage range of 9.90–12.10 V at 1.0 mA test current, corresponding to ±10% tolerance around the nominal 11 V rating. In contrast, the P4SMA11A variant specifies 10.50–11.60 V, representing a tighter ±5% tolerance. Engineers selecting P4SMA11C accept wider VBR spread for cost-sensitive, high-volume applications where exact clamping threshold is less critical than overall surge robustness.
Is the P4SMA11C suitable for bidirectional transient suppression?
No-the P4SMA11C is unidirectional and suppresses only positive transients relative to its marked cathode. For bidirectional protection (e.g., AC lines or floating buses), the P4SMA11CA variant must be used. That device features symmetrical breakdown in both directions and is explicitly rated for bipolar applications per TSC documentation. Using P4SMA11C in bidirectional scenarios leaves the circuit vulnerable to negative-going surges.
P4SMA11C 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):
- 8.92V
- Voltage - Breakdown (Min):
- 9.9V
- Voltage - Clamping (Max) @ Ipp:
- 16.2V
- Current - Peak Pulse (10/1000µs):
- 26A
- 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)
P4SMA11C FAQ
1.How can I place an order for P4SMA11C through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA11C 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 P4SMA11C reliable?
The price and inventory of P4SMA11C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA11C is usually 5 days.
3.What payment methods are accepted for P4SMA11C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA11C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA11C?
P4SMA11C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA11C 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 P4SMA11C?
For technical support, including P4SMA11C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA11C requirements.
6.How does Aetrix verify that P4SMA11C is sourced from the original manufacturer or authorized distributors?
All P4SMA11C 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 P4SMA11C meets industry standards.
7.What is the process for return or replacement of P4SMA11C?
All P4SMA11C units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA11C, 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 P4SMA11C part is unused and in its original packaging.
Return procedure for P4SMA11C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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