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Taiwan Semiconductor Corporation P4SMA11CA
- Part No.:
- P4SMA11CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA11CA.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,724
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Product details
Overview
P4SMA11CA from Taiwan Semiconductor is a bidirectional 400W surface-mount transient voltage suppressor (TVS) diode designed for robust overvoltage protection in DC power rails and signal lines. It features a working stand-off voltage of 9.40 V, breakdown voltage range of 10.50–11.60 V at 1.0 mA test current, clamping voltage of 15.6 V at 27 A peak pulse current (10/1000 µs), and operates across –55 °C to +150 °C junction temperature.
For engineers reviewing the P4SMA11CA datasheet, P4SMA11CA pinout, P4SMA11CA application, or P4SMA11CA equivalent, this device is selected for high-reliability surge suppression in automotive power supplies, industrial DC/DC converters, and lighting control circuits where fast response (<1.0 ps), low leakage (<1 µA at VWM), and ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance are required.
Technical Context
The P4SMA11CA implements a glass-passivated silicon avalanche junction optimized for bidirectional transient clamping. Its DO-214AC (SMA) package supports automated placement and meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability standards.
It delivers symmetrical electrical characteristics in both directions, with a maximum clamping voltage of 15.6 V under 27 A 10/1000 µs surge, enabling predictable voltage limiting during ESD or load-dump events. Temperature coefficient of VBR is tightly controlled at ±0.075 %/°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.40 V - Maximum continuous reverse operating voltage before significant leakage begins; sets safe DC rail margin. |
| VBR min/max | 10.50–11.60 V @ 1.0 mA - Confirmed avalanche onset range ensures consistent turn-on across production lots. |
| VC @ IPPM | 15.6 V @ 27 A (10/1000 µs) - Peak clamped voltage seen by protected circuit during worst-case surge. |
| IR @ VWM | <1 µA - Negligible standby power loss and minimal impact on high-impedance sensing nodes. |
| PPPM | 400 W - Sustains standardized 10/1000 µs surge energy without degradation; derates linearly above 25 °C ambient. |
| TJ max | +150 °C - Enables operation in under-hood automotive or enclosed industrial environments. |
| Package | DO-214AC (SMA) - Industry-standard surface-mount outline with 0.060 g mass and matte tin-plated leads. |
Pinout & Package
DO-214AC (SMA) package: molded plastic case with cathode band marking; polarity-sensitive for unidirectional variants, but P4SMA11CA is bidirectional - no functional polarity distinction; terminals are symmetric and non-polarized.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional surge path | Either terminal accepts positive or negative transients; no PCB orientation dependency. |
| Case | Thermal & mechanical interface | Plastic body provides electrical isolation; thermal path relies on PCB copper area per JEDEC MS-013 guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Clamping performance | 15.6 V max at 27 A ensures downstream ICs rated for 16 V logic or 24 V supply remain within absolute maximum ratings. |
| Response time | <1.0 ps enables effective suppression of ESD (IEC 61000-4-2) and fast-rising load-dump spikes. |
| ISO 7637-2 compliance | Validated for Pulse 1 (inductive switch-off), Pulse 2a/2b (battery disconnect), and Pulse 3a/3b (switching noise) - critical for automotive ECUs. |
| Moisture sensitivity | Level 1 per J-STD-020 - zero bake requirement prior to reflow, simplifying SMT line integration. |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU - suitable for green manufacturing programs. |
Applications
| Automotive Body Control Module (BCM) | Industrial LED Driver Power Input |
|---|---|
Use Scenario: Protects microcontroller I/O and CAN transceiver power rails against battery load-dump surges up to 35 V and ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed directly at connector entry point to limit transient voltage before it reaches LDOs and logic. Use Value: Prevents latch-up or permanent damage to 5 V/3.3 V logic during 12 V system transients; validated clamping at 15.6 V ensures margin below 16 V absolute max rating. |
Use Scenario: Shields constant-current LED driver ICs from switching noise and line surges in streetlight or signage applications. IC Role / Device Role / Timing Role: Parallel-connected TVS across 24 V input rail to absorb repetitive 10/1000 µs transients generated by nearby contactors or motor drives. Use Value: 400 W peak power rating sustains >100,000 surge cycles without parameter drift; <1 µA leakage avoids interference with precision current-sense feedback. |
| On-Board DC/DC Converter Input | Smart Home Power Adapter Protection |
Use Scenario: Safeguards buck controller ICs and MOSFET gate drivers in isolated 48 V-to-12 V converters used in telecom or server PSUs. IC Role / Device Role / Timing Role: Primary-side TVS placed between input bulk capacitor and converter input filter to clamp line-induced spikes before they propagate into control loop. Use Value: 10.5–11.6 V breakdown ensures reliable conduction only during overvoltage - no false triggering during normal 48 V ±10% regulation. |
Use Scenario: Integrated into universal-input (90–264 VAC) AC/DC adapters to meet IEC 61000-4-5 surge immunity requirements. IC Role / Device Role / Timing Role: Secondary-side TVS across 5 V/9 V/12 V output to protect USB ports and connected IoT devices from conducted surges. Use Value: Bidirectional configuration eliminates need for dual unidirectional devices; DO-214AC footprint allows compact layout in space-constrained adapter PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11CA (Bourns) | Same DO-214AA package; 600 W rating; higher VC = 18.2 V @ 33 A; 10% higher VWM (10.0 V). | Better suited for systems requiring higher surge margin but tolerating higher clamping voltage. | Select SMBJ11CA when 600 W surge headroom is needed and 18.2 V clamping remains within protected circuit's safe operating area. |
| 1.5KE11CA (ON Semiconductor) | Through-hole DO-15 package; 1500 W rating; VC = 18.2 V @ 82.5 A; larger footprint and manual assembly required. | Used in legacy designs or high-energy industrial equipment where board space and assembly method permit through-hole components. | Choose 1.5KE11CA only if through-hole mounting is mandated and PCB layout cannot accommodate surface-mount DO-214AC. |
Compared with SMBJ11CA and 1.5KE11CA, the P4SMA11CA offers optimal balance of compact DO-214AC packaging, 400 W capability, and low 15.6 V clamping - making it preferred for modern SMT-based automotive and industrial power modules where space, weight, and automated assembly are critical.
Availability
P4SMA11CA is available at Aetrix Electronics and suitable for automotive body electronics, industrial LED drivers, and on-board DC/DC converters requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P4SMA11CA 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 P4SMA series belongs to TSC's high-reliability surface-mount TVS portfolio, engineered specifically for automotive-grade surge immunity (ISO 7637-2) and industrial power rail protection with stringent moisture and whisker resistance requirements.
FAQ
What is the polarity configuration of P4SMA11CA?
The P4SMA11CA is a bidirectional TVS diode, meaning it functions identically in both forward and reverse bias directions. Unlike unidirectional variants (e.g., P4SMA11A), it has no cathode band designation and provides symmetrical clamping for AC-coupled or floating DC lines. This makes P4SMA11CA ideal for protecting differential buses or dual-rail systems where polarity reversal may occur.
Does P4SMA11CA meet automotive qualification standards?
Yes, the P4SMA11CA meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b test requirements for automotive transient immunity. Its glass-passivated junction, –55 °C to +150 °C operating range, JESD201 Class 2 whisker resistance, and moisture sensitivity level 1 all align with AEC-Q101 stress test conditions - though formal AEC-Q101 certification must be verified per lot documentation from Taiwan Semiconductor.
What is the maximum clamping voltage of P4SMA11CA under surge conditions?
The maximum clamping voltage of P4SMA11CA is 15.6 V when subjected to a 10/1000 µs waveform peak impulse current of 27 A. This value is measured at the device terminals under standardized test conditions and represents the highest voltage that will appear across the protected circuit during such a surge event - critical for ensuring downstream components remain within their absolute maximum voltage ratings.
Can P4SMA11CA replace unidirectional P4SMA11A in existing designs?
No - P4SMA11CA and P4SMA11A are not functionally interchangeable without layout review. While both share identical VWM (9.40 V) and VBR (10.50–11.60 V), P4SMA11A is unidirectional and requires correct cathode orientation, whereas P4SMA11CA is bidirectional with no polarity marking. Replacing one with the other may compromise protection in polarized circuits or cause unexpected conduction paths.
What is the recommended PCB pad layout for P4SMA11CA?
Taiwan Semiconductor specifies a DO-214AC (SMA) pad layout per JEDEC MS-013, with 2.5 mm × 1.5 mm solder pads spaced 2.3 mm center-to-center and ≥0.5 mm solder mask clearance. Thermal relief vias under the pads are recommended for high-reliability applications. The P4SMA11CA datasheet (Version S2102, Page 6) provides exact dimensions and suggests using green compound molding with cathode-band omission for bidirectional variants.
P4SMA11CA 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):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 27A
- 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)
P4SMA11CA FAQ
1.How can I place an order for P4SMA11CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA11CA 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 P4SMA11CA reliable?
The price and inventory of P4SMA11CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA11CA is usually 5 days.
3.What payment methods are accepted for P4SMA11CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA11CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA11CA?
P4SMA11CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA11CA 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 P4SMA11CA?
For technical support, including P4SMA11CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA11CA requirements.
6.How does Aetrix verify that P4SMA11CA is sourced from the original manufacturer or authorized distributors?
All P4SMA11CA 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 P4SMA11CA meets industry standards.
7.What is the process for return or replacement of P4SMA11CA?
All P4SMA11CA units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA11CA, 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 P4SMA11CA part is unused and in its original packaging.
Return procedure for P4SMA11CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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