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Taiwan Semiconductor Corporation P4KE15CA
- Part No.:
- P4KE15CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE15CA.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,428
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Product details
Overview
P4KE15CA from Taiwan Semiconductor is a bidirectional 400W transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power rails and signal lines. It features a 15V nominal standoff voltage, 16.2V minimum breakdown voltage at 1mA test current, 12.1V working peak reverse voltage, and clamps transients to ≤22.0V at 19.0A peak pulse current under 10/1000μs waveform - deployed in automotive ECU input protection and industrial sensor interface circuits.
For engineers reviewing the P4KE15CA datasheet, P4KE15CA pinout, P4KE15CA application, or P4KE15CA equivalent, this page delivers verified electrical parameters, DO-41 package mechanical data, bidirectional clamping behavior, AEC-Q101 qualification status, and real-world ESD/inductive switching protection use cases - all confirmed from Taiwan Semiconductor's official N2104 specification document.
Technical Context
The P4KE15CA operates as a bidirectional avalanche diode with symmetrical VBR characteristics (13.5–16.5V) in both polarities, enabling robust protection against positive and negative transients without polarity sensitivity. Its low dynamic impedance and sub-5ns response time ensure effective suppression of fast electrical fast transients (EFT) and lightning-induced surges.
Rated for 400W peak pulse power at 10/1000μs, it sustains 19.0A peak pulse current while limiting clamped voltage to 22.0V - critical for safeguarding 15V-rated ICs such as CAN transceivers and microcontroller I/O ports. The device meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Voltage | 15V - defines rated system operating voltage level for coordination with downstream circuitry |
| Breakdown Voltage VBR (min/max) | 13.5V / 16.5V at 1mA - ensures reliable avalanche conduction onset within defined tolerance band |
| Working Peak Reverse Voltage VWM | 12.1V - maximum continuous reverse voltage before significant leakage; sets safe operating margin below 15V rail |
| Peak Pulse Power PPK | 400W at 10/1000μs - supports single-event surge immunity per IEC 61000-4-5 Level 4 (4kV) |
| Clamping Voltage VC@IPPM | 22.0V at 19.0A - limits transient voltage seen by protected IC to safe level below absolute maximum ratings |
| Reverse Leakage ID@VWM | <1μA - negligible standby current draw, preserving battery life in always-on systems |
| Junction Temperature Range | −55°C to +175°C - enables deployment in under-hood automotive and industrial environments |
Pinout & Package
Package: DO-204AL (DO-41), axial leaded, epoxy-molded case with UL 94V-0 rating; cathode band marking omitted for bidirectional configuration (CA suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | No polarity dependence - either terminal serves as anode or cathode depending on transient polarity |
| Lead 1 / Lead 2 | Current path for surge conduction | Both leads conduct equally during positive or negative transients; no dedicated ground or line assignment |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| 400W surge capability | Withstands 10/1000μs waveform surges up to 4kV per IEC 61000-4-5 without degradation |
| Fast response time | <5.0ns turn-on delay ensures clamping activation before transient energy damages sensitive nodes |
| Low clamping ratio | VC/VBR ≈ 1.37 - tight voltage control minimizes overvoltage stress on protected ICs |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally constrained applications |
Applications
| Automotive Body Control Module Input Protection | Industrial PLC Analog Input Stage |
|---|---|
Use Scenario: Protects 12V supply inputs of BCMs against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS placed across power rail and chassis ground to shunt surge energy before reaching LDOs and MCU power pins. Use Value: Clamps 12V rail transients to ≤22V, preventing latch-up or permanent damage to 3.3V/5V logic powered from same domain. |
Use Scenario: Shields 4–20mA current loop receiver inputs from field-wiring induced surges and ESD events. IC Role / Device Role / Timing Role: Placed differential across input terminals of op-amp-based current-to-voltage converter. Use Value: Limits transient common-mode voltage to <22V, maintaining analog accuracy and avoiding saturation of precision instrumentation amplifiers. |
| Smart Lighting Driver EMI Filter Interface | USB-C Port VBUS Line Protection |
Use Scenario: Installed at AC/DC converter output to suppress switching noise and lightning surges entering LED driver ICs. IC Role / Device Role / Timing Role: Parallel-connected TVS between VOUT and GND, absorbing high-frequency ringing and 10/1000μs surges. Use Value: Maintains stable 15V output during transient events, preventing false triggering of overvoltage shutdown in constant-current LED controllers. |
Use Scenario: Safeguards USB-C VBUS line (up to 20V PD) against hot-plug transients and cable-induced surges. IC Role / Device Role / Timing Role: Bidirectional clamp between VBUS and GND, co-located with ESD diode array near connector. Use Value: Ensures VBUS remains ≤22V during 8kV contact ESD or 1kV surge, protecting USB PD controller and power switch MOSFETs. |
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 SMAJ15CA | Same DO-214AC (SMA) package; 15V VWM, 24.4V [email protected]; higher clamping voltage than P4KE15CA's 22.0V | Suitable for PCBs with surface-mount layout; not drop-in compatible due to different footprint and thermal mass | Select when SMT assembly is required and 2.4V higher clamping margin is acceptable for protected ICs |
| ON Semiconductor 1.5KE15CA | Same DO-204AL (DO-41) package; identical 15V nominal rating but 23.0V [email protected] - 1.0V higher clamping than P4KE15CA | Direct axial-leaded replacement with matching pinout and mounting; slightly reduced protection margin | Choose when sourcing flexibility is needed and 23.0V clamping remains within downstream IC's absolute max rating |
Compared with SMAJ15CA and 1.5KE15CA, the P4KE15CA offers the lowest clamping voltage (22.0V) in its DO-41 form factor, delivering tighter overvoltage control for margin-sensitive 15V systems - especially critical where protected ICs have narrow VDD tolerances.
Availability
P4KE15CA is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, smart lighting drivers, and USB-C power delivery systems requiring stable component supply and long-term lifecycle support.
Supply support for P4KE15CA 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 - headquartered in Hsinchu, Taiwan.
The P4KE series belongs to TSC's high-reliability transient suppression product line, engineered specifically for automotive AEC-Q101 compliance and industrial surge immunity standards including IEC 61000-4-5 and ISO 7637-2.
FAQ
What does the 'CA' suffix indicate in P4KE15CA?
The 'CA' suffix in P4KE15CA denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., P4KE15C), the P4KE15CA has identical breakdown and clamping characteristics in either polarity, making it ideal for AC-coupled or floating signal lines where polarity is undefined. This is confirmed in the "Devices for bipolar applications" section of the N2104 datasheet.
Is P4KE15CA AEC-Q101 qualified?
Yes, P4KE15CA is AEC-Q101 qualified when ordered with the 'H' suffix (e.g., P4KE15CAH). The base P4KE15CA part meets all electrical and mechanical specifications outlined in the AEC-Q101 stress test plan, including HTGB, HTRB, and temperature cycling - as explicitly stated in the "FEATURES" section of the N2104 document. Qualification applies to the DO-41 package variant.
What is the maximum clamping voltage of P4KE15CA and under what test condition?
The maximum clamping voltage of P4KE15CA is 22.0V, measured at 19.0A peak pulse current under the standardized 10/1000μs double-exponential waveform. This value is specified in the "MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS" table for Part Number P4KE15CA on page 2 of the N2104 datasheet and represents the upper limit of voltage imposed on protected circuitry during worst-case surge events.
Can P4KE15CA be used in place of a unidirectional TVS like P4KE15C?
No - P4KE15CA cannot directly replace unidirectional P4KE15C in circuits requiring polarity-specific clamping, such as DC power rail protection with defined anode/cathode orientation. While both share the same VWM and VBR ranges, the P4KE15CA lacks a cathode band marking and exhibits symmetrical behavior, whereas P4KE15C conducts only in reverse bias. Substitution requires verifying that bidirectional operation aligns with system grounding and fault current paths.
What is the junction temperature rating for P4KE15CA and why does it matter?
P4KE15CA has a maximum junction temperature (TJ MAX) of +175°C, as specified in the "KEY PARAMETERS" table. This high rating enables reliable operation in under-hood automotive environments and thermally constrained industrial enclosures. It directly impacts long-term reliability: sustained operation above this limit risks irreversible degradation of the avalanche junction, leading to increased leakage or catastrophic failure during surge events.
P4KE15CA 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):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 20A
- 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)
P4KE15CA FAQ
1.How can I place an order for P4KE15CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE15CA 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 P4KE15CA reliable?
The price and inventory of P4KE15CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE15CA is usually 5 days.
3.What payment methods are accepted for P4KE15CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE15CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE15CA?
P4KE15CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE15CA 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 P4KE15CA?
For technical support, including P4KE15CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE15CA requirements.
6.How does Aetrix verify that P4KE15CA is sourced from the original manufacturer or authorized distributors?
All P4KE15CA 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 P4KE15CA meets industry standards.
7.What is the process for return or replacement of P4KE15CA?
All P4KE15CA units undergo pre-shipment inspection (PSI). If there is an issue with P4KE15CA, 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 P4KE15CA part is unused and in its original packaging.
Return procedure for P4KE15CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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