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Vishay General Semiconductor - Diodes Division P4KE15CAHE3/54
- Part No.:
- P4KE15CAHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE15CAHE3/54.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:8,880
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Product details
Overview
P4KE15CAHE3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients on signal or power lines. It features a 15 V breakdown voltage (VBR min/max = 14.3–15.8 V at 1.0 mA), 12.8 V stand-off voltage (VWM), 21.2 V maximum clamping voltage (VC) at 18.9 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform.
For engineers reviewing the P4KE15CAHE3/54 datasheet, P4KE15CAHE3/54 pinout, P4KE15CAHE3/54 application, or P4KE15CAHE3/54 equivalent, this AEC-Q101 qualified, RoHS-compliant TVS provides verified bidirectional surge protection for automotive sensor interfaces, industrial I/O lines, DC power rails, and telecom line cards requiring stable clamping performance under repetitive transient stress.
Technical Context
This device operates as a silicon avalanche diode optimized for fast-response transient suppression in both polarities. Its glass-passivated junction ensures low leakage (<1.0 μA at VWM) and stable breakdown characteristics across -55 °C to +175 °C operating junction temperature range.
The P4KE15CAHE3/54 delivers consistent clamping behavior with 0.084 %/°C temperature coefficient of VBR, low incremental surge resistance, and thermal resistance of 66 °C/W (junction-to-lead), enabling reliable operation without heatsinking in moderate-duty-cycle applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 14.3 V / 15.8 V at 1.0 mA - defines precise avalanche initiation threshold for bidirectional clamping |
| VWM | 12.8 V - maximum continuous reverse working voltage before leakage exceeds 1.0 μA |
| VC at IPPM | 21.2 V at 18.9 A - clamped voltage during 10/1000 μs surge, limiting downstream component stress |
| PPPM | 400 W - peak transient power handling capability under standardized 10/1000 μs waveform |
| TJ max. | +175 °C - enables use in under-hood automotive and high-temperature industrial environments |
| AEC-Q101 Qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Package | DO-41 (DO-204AL) - industry-standard axial-leaded package with UL 94 V-0 molded epoxy body |
Pinout & Package
DO-41 (DO-204AL) package: axial-leaded, glass-passivated silicon junction in molded epoxy case. Matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. No polarity marking for bidirectional types.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction terminals | Identical electrical behavior in either direction; no cathode band marking required |
| Lead 1 | Current path input/output | Connects to protected line; handles full IPPM surge current without polarity dependence |
| Lead 2 | Current path input/output | Completes transient current loop to ground or return rail; same surge rating as Lead 1 |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR tolerance and low leakage (<1.0 μA) over lifetime and temperature |
| 400 W peak pulse power (10/1000 μs) | Protects against IEC 61000-4-5 Level 3 surges (1 kV/2 Ω) on 12 V systems without derating |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body electronics, and ADAS sensor interfaces |
| UL 94 V-0 molding compound | Meets flammability requirements for enclosed industrial and telecom equipment housings |
| Matte tin-plated leads | Guarantees robust solder joint formation per J-STD-002, supporting automated assembly |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD events in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between signal line and chassis ground. Use Value: Limits transient voltage to ≤21.2 V during 18.9 A surges, preventing damage to 3.3 V/5 V interface ICs while maintaining signal integrity. |
Use Scenario: Safeguarding PLC digital input modules against inductive switching spikes from solenoids and relays. IC Role / Device Role / Timing Role: Line-side TVS connected across input terminals to shunt surge energy to common ground. Use Value: Clamps 400 W transients within 1 ns response time, eliminating false triggering and extending module service life. |
| DC Power Rail Protection | Telecom Line Card Protection |
|
Use Scenario: Suppressing voltage overshoot on 12 V/24 V DC power distribution networks in factory automation controllers. IC Role / Device Role / Timing Role: Parallel-connected TVS across supply rail and ground to clamp load-dump transients. Use Value: Withstands 40 A IFSM (unidirectional reference) and maintains VC ≤21.2 V, protecting downstream DC-DC converters and microcontrollers. |
Use Scenario: Shielding Ethernet PHY interfaces and analog line drivers in telecom access equipment from lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level protection on RJ-45 port lines before secondary filtering and isolation stages. Use Value: Provides 400 W surge rating with 0.084 %/°C VBR stability, ensuring consistent clamping across operating temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15CA | Surface-mount SMB package (vs. axial DO-41); same VBR range and 600 W PPPM | Requires PCB rework for SMT assembly; higher power rating but lower surge current density | Select when board space is constrained and automated SMT placement is preferred over through-hole |
| 1.5KE15CA | Same DO-41 package but rated for 1500 W PPPM; larger junction area and higher IPPM (122 A) | Overqualified for 400 W needs; higher cost and thermal mass may delay response in low-energy events | Choose only when legacy designs require backward compatibility with 1.5 kW surge standards |
Compared with SMBJ15CA and 1.5KE15CA, the P4KE15CAHE3/54 offers optimal balance of AEC-Q101 qualification, proven DO-41 reliability, and precise 400 W/18.9 A surge handling-making it ideal for cost-sensitive, high-volume automotive and industrial through-hole designs where validated qualification and thermal performance are critical.
Availability
P4KE15CAHE3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, DC power rail protection, and telecom line card surge suppression requiring stable component supply and AEC-Q101 compliance.
Supply support for P4KE15CAHE3/54 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability and automotive-grade validation.
The P4KE15CAHE3/54 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust bidirectional transient suppression in harsh environments including automotive, industrial control, and communications infrastructure.
FAQ
What does the "CA" suffix indicate in P4KE15CAHE3/54?
The "CA" suffix denotes a bidirectional configuration, meaning the P4KE15CAHE3/54 functions identically in both forward and reverse bias directions. Unlike unidirectional variants (e.g., P4KE15A), it has no cathode marking and provides symmetrical clamping for AC-coupled or floating signal lines-critical for protecting differential interfaces like RS-485 or CAN without polarity concerns.
Is P4KE15CAHE3/54 suitable for automotive applications?
Yes, the P4KE15CAHE3/54 is AEC-Q101 qualified and explicitly rated for automotive use. Its -55 °C to +175 °C operating junction temperature range, glass-passivated junction, and validation across temperature cycling, HTRB, and ESD tests make it appropriate for engine control units, body electronics, and ADAS sensor modules where reliability under thermal and electrical stress is mandatory.
How does the 10/1000 μs waveform relate to real-world surge events?
The 10/1000 μs waveform used to rate the P4KE15CAHE3/54's 400 W peak pulse power represents a standardized surge test simulating lightning-induced transients and inductive switching spikes. It defines rise time (10 μs) and decay to 50% value (1000 μs), closely matching IEC 61000-4-5 severity Level 3-ensuring the P4KE15CAHE3/54 delivers predictable clamping performance in field-deployed industrial and automotive systems.
What is the significance of VC = 21.2 V at IPPM = 18.9 A for circuit design?
This clamping voltage specifies the maximum voltage that will appear across protected circuitry during a full-rated 400 W transient. For a 12 V system, keeping VC ≤21.2 V ensures downstream components rated for 24 V absolute maximum survive the event. Designers use this value to verify margin against IC absolute maximum ratings and select appropriate series impedance to limit let-through current.
Does P4KE15CAHE3/54 require a heatsink for continuous operation?
No, the P4KE15CAHE3/54 is designed for transient-only duty cycles (0.01 % max) and dissipates only 1.5 W continuously (PD). Its RθJL of 66 °C/W allows safe operation at up to +175 °C junction temperature with standard lead lengths-no heatsink needed. Thermal design focuses on PCB copper area for transient energy dissipation, not steady-state cooling.
P4KE15CAHE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- 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):
- 18.9A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
P4KE15CAHE3/54 FAQ
1.How can I place an order for P4KE15CAHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE15CAHE3/54 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 P4KE15CAHE3/54 reliable?
The price and inventory of P4KE15CAHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE15CAHE3/54 is usually 5 days.
3.What payment methods are accepted for P4KE15CAHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE15CAHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE15CAHE3/54?
P4KE15CAHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE15CAHE3/54 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 P4KE15CAHE3/54?
For technical support, including P4KE15CAHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE15CAHE3/54 requirements.
6.How does Aetrix verify that P4KE15CAHE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE15CAHE3/54 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 P4KE15CAHE3/54 meets industry standards.
7.What is the process for return or replacement of P4KE15CAHE3/54?
All P4KE15CAHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE15CAHE3/54, 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 P4KE15CAHE3/54 part is unused and in its original packaging.
Return procedure for P4KE15CAHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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