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Taiwan Semiconductor Corporation P4KE11A
- Part No.:
- P4KE11A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE11A.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:4,675
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Product details
Overview
P4KE11A from Taiwan Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 11 V nominal breakdown voltage, 9.40 V working stand-off voltage, 15.6 V maximum clamping voltage at 27 A peak pulse current, and 400 W peak pulse power rating per 10/1000 µs waveform - deployed in automotive body control modules to safeguard CAN transceivers against load dump and EFT events.
For engineers reviewing the P4KE11A datasheet, P4KE11A pinout, P4KE11A application, or P4KE11A equivalent, key selection criteria include clamping voltage margin relative to protected IC VCC, leakage current at operating voltage, thermal derating above 25°C, and DO-41 package compatibility with existing PCB layouts for retrofit ESD hardening.
Technical Context
The P4KE11A operates as a silicon avalanche diode with unidirectional polarity, triggered when reverse voltage exceeds its 10.5–11.6 V breakdown range at 1 mA test current. Its low dynamic impedance ensures rapid voltage clamping during fast transients, with typical response time under 1.0 ps from 0 V to VBR.
It complies with ANSI/IEEE C62.35 for peak pulse testing and supports AEC-Q101 qualification when ordered with "H" suffix. The device sustains 40 A non-repetitive forward surge current (8.3 ms half-sine) and maintains ≤1 µA reverse leakage above 10 V, enabling low-power system integration without standby current penalty.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.40 V - Maximum continuous reverse operating voltage before significant leakage; sets upper limit for safe DC rail placement. |
| VBR @ IT=1 mA | 10.5–11.6 V - Verified avalanche initiation range; defines minimum overvoltage threshold for protection activation. |
| VC @ IPPM=27 A | 15.6 V - Clamped voltage during 10/1000 µs surge; must remain below protected IC's absolute maximum rating. |
| PPK | 400 W - Peak pulse power handling per standard waveform; determines survivability against ISO 7637-2 Pulse 1/2/5a. |
| IR @ VWM | ≤1 µA - Reverse leakage at stand-off voltage; negligible impact on battery-powered sensor node quiescent current. |
| TJMAX | 175 °C - Maximum junction temperature; enables operation in under-hood automotive environments with minimal thermal derating. |
| Package | DO-204AL (DO-41) - Industry-standard axial leaded package; compatible with manual soldering and wave soldering per J-STD-002. |
Pinout & Package
DO-204AL (DO-41) axial-leaded package with cathode band marking for unidirectional polarity. Leads are pure tin plated and solderable per J-STD-002; molding compound meets UL 94V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference terminal | Connected to system ground or low-side return path; completes clamping loop during transient events. |
| Cathode | Protected line input | Connected to line under protection (e.g., 12 V supply rail); conducts avalanche current to ground when VAK > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Withstands automotive load dump surges (ISO 16750-2) without degradation or failure. |
| Clamping voltage ≤15.6 V at 27 A | Provides ≥1.4 V margin below typical 17 V absolute max rating of 12 V automotive microcontrollers. |
| Reverse leakage ≤1 µA @ 9.4 V | Enables use in always-on battery circuits without measurable drain over years of operation. |
| AEC-Q101 qualified option (P4KE11AH) | Validated for automotive under-hood applications including engine control units and lighting drivers. |
| UL Recognized (E326243) | Meets safety requirements for end-equipment certification in industrial and transportation systems. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12 V battery-fed ECUs exposed to ISO 7637-2 Pulse 1 (inductive switch-off) and Pulse 5a (load dump). IC Role / Device Role / Timing Role: Primary clamping element placed upstream of LDO regulators and CAN transceivers to limit transient overvoltage. Use Value: Limits rail voltage to ≤15.6 V during 100 V/50 ms load dump event, preventing latch-up or oxide breakdown in downstream 16-bit MCUs. | Use Scenario: 4–20 mA current loop transmitter connected to PLC analog input subjected to EFT bursts per IEC 61000-4-4. IC Role / Device Role / Timing Role: Front-end TVS on signal line to absorb 5 kV/5 kHz burst energy before reaching precision op-amps and ADCs. Use Value: Clamps induced transients to <16 V within 1 ps, preserving 16-bit measurement integrity without signal distortion or recovery delay. |
| LED Driver Overvoltage Suppression | USB Port ESD Hardening |
Use Scenario: Constant-current LED driver IC powered from 24 V industrial supply experiencing switching noise and relay bounce. IC Role / Device Role / Timing Role: Standoff protector across input capacitor to shunt high-dV/dt spikes before they reach driver FET gate or controller VDD. Use Value: Maintains 9.4 V working voltage while clamping 400 W surges, ensuring driver IC remains functional during repeated 100 V/100 ns spikes. | Use Scenario: USB 2.0 data lines (D+/D−) in embedded host controller exposed to ±8 kV contact ESD per IEC 61000-4-2. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS on VBUS line only (not data lines), protecting power management IC from ESD-induced latch-up. Use Value: Delivers sub-1 µA leakage at 5 V and 15.6 V clamping, avoiding USB enumeration failures while meeting Class 4 immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11A | DO-214AA package; 11.1 V VBR min; 18.2 V VC @ 21.9 A; 600 W PPK | Higher clamping voltage but greater surge capacity; surface-mount only | Select SMBJ11A for higher-power SMT designs where board space permits and clamping margin allows. |
| 1N6267A | Same DO-41 package; 11.1 V VBR min; 17.5 V VC @ 22.9 A; 400 W PPK; legacy ON Semi part | Identical form factor and basic ratings; slightly higher clamping than P4KE11A | Choose 1N6267A for legacy design continuity or dual-sourcing where Taiwan Semiconductor supply is constrained. |
Compared with SMBJ11A and 1N6267A, the P4KE11A offers the lowest clamping voltage (15.6 V) in DO-41 format, making it optimal for tight-margin 12 V systems where every volt of protection headroom matters - especially in AEC-Q101-compliant automotive variants.
Availability
P4KE11A is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, LED driver circuits, and USB power rail protection requiring stable component supply across multi-year production cycles.
Supply support for P4KE11A 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, with global distribution and AEC-Q101 validation capability.
The P4KE series targets cost-sensitive, high-reliability transient suppression in automotive, industrial, and consumer power systems - emphasizing robust surge handling, low leakage, and standardized DO-41 packaging for broad design adoption.
FAQ
What is the breakdown voltage range of the P4KE11A?
The P4KE11A has a guaranteed breakdown voltage range of 10.5 V to 11.6 V at 1 mA test current (VBR @ IT = 1 mA), as specified in the Taiwan Semiconductor datasheet revision N2104. This range ensures consistent triggering behavior across production lots and temperature extremes, critical for predictable overvoltage protection timing in 12 V automotive systems where the P4KE11A is commonly applied.
Is the P4KE11A suitable for bidirectional transient suppression?
No, the P4KE11A is a unidirectional TVS diode intended for DC line protection with defined anode-cathode polarity. For bidirectional applications such as AC signal lines or differential buses, the P4KE11CA variant (with "CA" suffix) must be used instead. The P4KE11A's cathode band marking and asymmetric IV curve confirm its unidirectional function - using it in reverse-biased AC contexts risks premature conduction or failure.
What is the maximum clamping voltage of the P4KE11A during a surge event?
The P4KE11A clamps to a maximum of 15.6 V when subjected to its rated 27 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured at TA = 25°C and represents the upper bound of voltage seen by downstream circuitry during worst-case surge conditions - a key parameter for verifying compatibility with the absolute maximum ratings of protected ICs like CAN transceivers or microcontroller power pins in designs using the P4KE11A.
Does the P4KE11A meet automotive qualification standards?
The base P4KE11A is not AEC-Q101 qualified; however, the variant P4KE11AH (with "H" suffix) is explicitly qualified to AEC-Q101 for stress testing including temperature cycling, humidity bias, and high-temperature operating life. Engineers specifying the P4KE11A for automotive applications should select P4KE11AH to ensure compliance with automotive reliability requirements - the P4KE11A itself remains suitable for industrial and commercial uses where AEC-Q101 is not mandated.
How does the P4KE11A compare to the P4KE11 in terms of electrical performance?
The P4KE11A offers tighter breakdown voltage tolerance (10.5–11.6 V) versus the P4KE11 (9.9–12.1 V), resulting in more precise and consistent clamping onset. It also provides lower clamping voltage (15.6 V vs. 16.2 V) and higher peak pulse current rating (27 A vs. 26 A) at the same 400 W power level. These improvements make the P4KE11A preferable in noise-sensitive or margin-constrained applications where the P4KE11A's enhanced specification directly improves system robustness without changing footprint or layout.
P4KE11A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- P4KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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 ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
P4KE11A FAQ
1.How can I place an order for P4KE11A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE11A 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 P4KE11A reliable?
The price and inventory of P4KE11A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE11A is usually 5 days.
3.What payment methods are accepted for P4KE11A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE11A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE11A?
P4KE11A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE11A 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 P4KE11A?
For technical support, including P4KE11A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE11A requirements.
6.How does Aetrix verify that P4KE11A is sourced from the original manufacturer or authorized distributors?
All P4KE11A 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 P4KE11A meets industry standards.
7.What is the process for return or replacement of P4KE11A?
All P4KE11A units undergo pre-shipment inspection (PSI). If there is an issue with P4KE11A, 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 P4KE11A part is unused and in its original packaging.
Return procedure for P4KE11A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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