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Taiwan Semiconductor Corporation P4KE22C
- Part No.:
- P4KE22C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE22C.pdf
- Description:
- 400W, 22V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,958
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Product details
Overview
P4KE22C from Taiwan Semiconductor is a unidirectional 400W transient voltage suppressor (TVS) diode designed for primary-side overvoltage protection in DC power rails and signal lines. It features a 22V nominal breakdown voltage (VBR min/max: 19.8V–24.2V at 1mA), 17.8V working stand-off voltage (VWM), clamps to ≤31.9V at 13.0A peak pulse current, and operates across –55°C to +175°C junction temperature range.
For engineers reviewing the P4KE22C datasheet, P4KE22C pinout, P4KE22C application, or P4KE22C equivalent, this device is selected for robust ESD and lightning surge immunity in automotive body electronics, industrial sensor interfaces, and LED driver input stages where low clamping voltage and fast sub-nanosecond response are critical.
Technical Context
The P4KE22C employs an avalanche breakdown mechanism optimized for unidirectional transient suppression. Its 10/1000μs waveform rating of 400W defines its energy-handling capability under standardized surge conditions, while its <1.0ps response time ensures clamping activation before sensitive downstream circuitry sustains damage.
With a maximum reverse leakage current of 1μA at 17.8V and a temperature coefficient of VBR at 0.092%/°C, the P4KE22C maintains stable clamping performance across wide thermal and bias ranges-critical for automotive under-hood and industrial control applications requiring long-term reliability without derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17.8 V - Maximum continuous DC or RMS voltage the device blocks without significant leakage |
| VBR @ IT=1mA | 19.8–24.2 V - Breakdown initiates within this range, defining minimum system overvoltage threshold |
| VC @ IPPM=13.0A | ≤31.9 V - Clamped voltage during 400W surge, limiting stress on protected ICs |
| PPK | 400 W - Peak pulse power handling per 10/1000μs waveform, enabling IEC 61000-4-5 Level 4 compliance |
| TJ max | +175 °C - Enables operation in high-temperature environments like engine control units and motor drives |
| IR @ VWM | ≤1 μA - Ultra-low leakage preserves battery life and avoids false triggering in low-power systems |
| Package | DO-204AL (DO-41) - Industry-standard axial leaded package with UL 94V-0 molding and tin-plated leads |
Pinout & Package
DO-204AL (DO-41) axial-leaded package with cathode band marking. Leads are pure tin-plated and solderable per J-STD-002; polarity is unidirectional, with cathode indicated by band.
| 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 connection | Connected to the line being protected (e.g., 24V rail); conducts avalanche current to ground when V > VBR |
Key Features
| Feature | Design Value |
|---|---|
| 400W peak pulse power | Supports IEC 61000-4-5 4th-level surge immunity (4kV/2Ω) on 24V DC lines without external series impedance |
| <1.0ps response time | Activates before most microcontroller I/O pins can be damaged by ESD or fast transients (e.g., relay bounce) |
| UL 94V-0 flammability rating | Ensures non-propagating combustion under fault conditions-required for automotive and industrial safety certifications |
| AEC-Q101 qualified option (P4KE22CH) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally restricted materials |
Applications
| Automotive Body Control Module | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting LIN bus transceivers and door module MCUs from load dump and alternator ripple. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 12V supply rail upstream of LDO regulators. Use Value: Limits rail voltage to ≤31.9V during 400W surges, preventing latch-up or gate oxide rupture in 3.3V/5V logic. |
Use Scenario: Safeguarding 4–20mA current-loop transmitter inputs against field wiring faults and EFT bursts. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input terminals and ground to shunt induced transients. Use Value: Sub-ns response ensures clamping occurs before ±2kV EFT pulses (IEC 61000-4-4) reach precision op-amps. |
| LED Driver Input Stage | Power Supply Front-End Protection |
Use Scenario: Shielding constant-current LED drivers from inductive kickback during MOSFET switching. IC Role / Device Role / Timing Role: Parallel-connected TVS across bulk capacitor input to absorb flyback energy. Use Value: 17.8V VWM allows normal 24V operation while clamping 13A surges to ≤31.9V-preserving electrolytic capacitor lifetime. |
Use Scenario: Secondary-stage protection after AC/DC rectification in industrial SMPS designs. IC Role / Device Role / Timing Role: Standoff-rated TVS on DC bus to limit overvoltage from rectifier failure or transformer saturation. Use Value: 175°C max junction temperature enables placement near hot components without thermal derating penalties. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse P4KE22CA | Same DO-41 package, identical VWM/VBR/VC specs, but rated for 1000W peak power in 10/1000μs (per Littelfuse datasheet Rev. D) | Higher PPK supports longer-duration surges; suitable where IEC 61000-4-5 test margins require headroom | Select when system-level surge testing exceeds 400W or requires extended waveform compliance |
| ON Semiconductor 1N6267A | DO-41 package, 22V nominal, but lower PPK = 300W and higher VC = 35.5V at 10.5A | Reduced clamping margin may require additional filtering for sensitive analog front-ends | Choose only if cost sensitivity outweighs clamping performance and thermal margin requirements |
Compared with P4KE22C, the Littelfuse P4KE22CA offers higher surge headroom without layout change, while the ON Semi 1N6267A trades clamping performance for legacy compatibility-making P4KE22C optimal for new designs balancing cost, size, and 400W IEC-compliant protection.
Availability
P4KE22C is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, LED driver input stages, and power supply front-end protection requiring stable component supply and full traceability.
Supply support for P4KE22C 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, and rectifiers with global distribution and AEC-Q101 qualification capabilities.
The P4KE Series targets cost-sensitive, high-reliability transient suppression in automotive, industrial, and consumer power systems-designed for ease of integration into existing DO-41 footprints with guaranteed surge robustness.
FAQ
What is the maximum clamping voltage of P4KE22C under surge conditions?
The P4KE22C clamps to a maximum of 31.9 V when subjected to its rated 13.0 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured at the device terminals and defines the upper voltage limit imposed on protected circuitry during a 400W transient event. The P4KE22C maintains this clamping performance across its full operating temperature range.
Is P4KE22C suitable for bidirectional signal line protection?
No, P4KE22C is a unidirectional TVS diode intended for DC rail protection where polarity is fixed. For bidirectional applications such as AC lines or differential data buses, the P4KE22CA variant (with "CA" suffix) must be used-it provides symmetrical breakdown in both directions. Using P4KE22C on bidirectional signals risks forward conduction and improper clamping behavior.
Does P4KE22C meet automotive qualification standards?
The base P4KE22C is not AEC-Q101 qualified; however, the P4KE22CH variant (with "H" suffix) is fully AEC-Q101 certified for automotive use. It undergoes accelerated stress testing including temperature cycling, high-temperature reverse bias, and ESD per AEC-Q101 Rev D. Always specify P4KE22CH for under-hood or ADAS-related applications.
What is the reverse leakage current specification for P4KE22C at its working voltage?
At its 17.8 V working stand-off voltage (VWM), the P4KE22C exhibits a maximum reverse leakage current (ID) of 1 μA at 25°C. This ultra-low leakage ensures minimal power loss in battery-powered systems and prevents false triggering in high-impedance sensing circuits. Leakage remains below 5 μA up to +125°C per TSC characterization data.
Can P4KE22C replace older P6KE22A devices in existing designs?
Yes, P4KE22C is a direct functional replacement for P6KE22A in most cases: both use DO-41 packaging, share identical VWM (17.8 V), VBR (19.8–24.2 V), and VC (≤31.9 V) specifications, and offer comparable 400W surge ratings. However, P4KE22C has tighter manufacturing tolerances and improved thermal stability-no PCB changes are required, but verify layout thermal relief for sustained 1W dissipation at 75°C lead temperature.
P4KE22C 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 17.8V
- Voltage - Breakdown (Min):
- 19.8V
- Voltage - Clamping (Max) @ Ipp:
- 31.9V
- Current - Peak Pulse (10/1000µs):
- 13A
- 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)
P4KE22C FAQ
1.How can I place an order for P4KE22C through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE22C 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 P4KE22C reliable?
The price and inventory of P4KE22C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE22C is usually 5 days.
3.What payment methods are accepted for P4KE22C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE22C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE22C?
P4KE22C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE22C 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 P4KE22C?
For technical support, including P4KE22C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE22C requirements.
6.How does Aetrix verify that P4KE22C is sourced from the original manufacturer or authorized distributors?
All P4KE22C 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 P4KE22C meets industry standards.
7.What is the process for return or replacement of P4KE22C?
All P4KE22C units undergo pre-shipment inspection (PSI). If there is an issue with P4KE22C, 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 P4KE22C part is unused and in its original packaging.
Return procedure for P4KE22C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE22C Tags
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