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Vishay General Semiconductor - Diodes Division P4KE300CA-E3/54
- Part No.:
- P4KE300CA-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE300CA-E3/54.pdf
- Description:
- TVS DIODE 256VWM 414VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,684
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Product details
Overview
P4KE300CA-E3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients on power and signal lines. It features a 300 V breakdown voltage (VBR min/max = 285–315 V), 400 W peak pulse power (10/1000 µs), and clamps to ≤414 V at 1.0 A peak pulse current - used in automotive sensor protection and industrial I/O interface surge suppression.
For engineers reviewing the P4KE300CA-E3/54 datasheet, P4KE300CA-E3/54 pinout, P4KE300CA-E3/54 application, or P4KE300CA-E3/54 equivalent, key selection criteria include bidirectional clamping capability, DO-41 leaded package compatibility with through-hole PCB layouts, AEC-Q101 qualification status, and 175 °C maximum junction temperature for under-hood automotive deployments.
Technical Context
The P4KE300CA-E3/54 employs a glass-passivated silicon junction optimized for fast transient response (<1 ns) and low incremental surge resistance. Its bidirectional architecture enables symmetrical clamping in AC-coupled or floating circuits without polarity concerns.
It operates across –55 °C to +175 °C, supports 1.5 W steady-state power dissipation at 75 °C lead temperature, and maintains stable breakdown voltage with a temperature coefficient of 0.110 %/°C - critical for high-temperature industrial environments where thermal drift must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 285 V / 315 V at 1.0 mA - defines reliable conduction onset range for overvoltage detection |
| VWM | 256 V - maximum continuous reverse working voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 414 V at 1.0 A - clamped voltage during 10/1000 µs surge, limiting downstream stress |
| PPPM | 400 W - peak transient power handling capacity per single 10/1000 µs pulse |
| TJ max | +175 °C - enables operation in engine control units and motor drive enclosures |
| RθJL | 66 °C/W - thermal resistance from junction to lead, informs heatsinking requirements for repetitive surges |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
Package: DO-41 (DO-204AL), axial-leaded, molded epoxy body with matte tin-plated leads; RoHS-compliant (E3 suffix), UL 94 V-0 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Current entry point in forward bias; common terminal in bidirectional mode | No polarity marking - symmetric conduction allows either lead to serve as input/output in AC paths |
| Cathode (unmarked end) | Current exit point in forward bias; common terminal in bidirectional mode | Identical electrical behavior to anode; device functions identically regardless of orientation |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance and long-term reliability under humidity and thermal cycling |
| 400 W peak pulse power (10/1000 µs) | Handles typical ISO 7637-2 Pulse 1/2a/5a transients in 12 V automotive systems |
| AEC-Q101 qualification | Validated for automotive electronics including ECU, body control modules, and ADAS sensors |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., inductive switch-off) |
| Solder dip 275 °C / 10 s | Supports wave soldering without parametric shift or mechanical degradation |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle chassis. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across differential signal pair or supply rail to limit transient excursions. Use Value: Clamps 300 V transients to ≤414 V within nanoseconds, preserving signal integrity and preventing latch-up in 3.3 V/5 V interface ICs. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and ESD events in factory automation cabinets. IC Role / Device Role / Timing Role: Primary surge suppression element on 24 V DC input terminals prior to optocoupler or Schmitt trigger conditioning. Use Value: Withstands 400 W pulses without degradation, enabling >100,000 surge cycles per IEC 61000-4-5 Level 3 compliance. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Front-end protection for Ethernet PHYs and RS-485 transceivers in outdoor telecom equipment subjected to lightning-induced surges. IC Role / Device Role / Timing Role: First-stage clamping device on twisted-pair lines, coordinated with GDT or MOV secondary protection. Use Value: Fast <1 ns response ensures clamping initiates before transient energy couples into sensitive PHY circuitry. |
Use Scenario: Secondary-side overvoltage suppression on DC output rails of wall-mounted AC/DC adapters for smart home devices. IC Role / Device Role / Timing Role: Fail-safe shunt element that activates only during abnormal overvoltage events (e.g., feedback loop failure). Use Value: 256 V stand-off voltage avoids conduction during normal 24 V output regulation, eliminating standby power loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ300CA | Surface-mount SMB package (vs. through-hole DO-41); same 300 V VBR, 400 W PPPM, but lower IPPM (1.0 A vs. 1.0 A - identical), higher capacitance (≈20 pF vs. ≈10 pF) | Preferred for space-constrained PCBs; unsuitable for manual repair or high-vibration environments requiring mechanical robustness | Select SMBJ300CA when automated SMT assembly and board density outweigh serviceability and mechanical stability needs |
| 1.5KE300CA | Higher peak pulse power (1500 W vs. 400 W); same DO-41 package, VBR, and bidirectional configuration; larger die size increases thermal mass | Better suited for primary-level surge protection (e.g., AC mains input) rather than secondary-side signal line clamping | Choose 1.5KE300CA only when system-level surge testing requires >400 W handling - avoid in signal-path locations due to higher clamping voltage (480 V) |
Compared with SMBJ300CA and 1.5KE300CA, the P4KE300CA-E3/54 offers optimal balance of through-hole mechanical reliability, moderate surge rating, and low clamping voltage - making it ideal for mid-tier industrial and automotive secondary-side protection where cost, serviceability, and thermal margin are jointly prioritized.
Availability
P4KE300CA-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter designs requiring stable component supply and AEC-Q101 traceability.
Supply support for P4KE300CA-E3/54 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 passive components with emphasis on reliability and automotive qualification.
The P4KE300CA-E3/54 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust transient suppression in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the breakdown voltage tolerance of the P4KE300CA-E3/54?
The P4KE300CA-E3/54 has a specified breakdown voltage range of 285 V to 315 V at 1.0 mA test current, representing ±5 % tolerance around the nominal 300 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports predictable system-level surge margin calculations in designs using the P4KE300CA-E3/54.
Is the P4KE300CA-E3/54 suitable for automotive applications?
Yes, the P4KE300CA-E3/54 is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments up to +175 °C junction temperature. Its bidirectional configuration, DO-41 mechanical robustness, and 400 W surge rating align with ISO 7637-2 Pulse 1 and 2a requirements - making the P4KE300CA-E3/54 appropriate for protecting ECUs, body control modules, and sensor interfaces.
How does the clamping voltage of the P4KE300CA-E3/54 compare to its breakdown voltage?
The P4KE300CA-E3/54 clamps to a maximum of 414 V at 1.0 A peak pulse current (10/1000 µs waveform), which is approximately 38 % above its minimum breakdown voltage of 285 V. This VC/VBR ratio reflects low dynamic impedance and effective transient suppression - ensuring the P4KE300CA-E3/54 limits downstream voltage stress while maintaining sufficient margin below typical 450 V IC absolute maximum ratings.
Does the P4KE300CA-E3/54 have polarity markings?
No, the P4KE300CA-E3/54 is a bidirectional TVS diode and carries no polarity marking on its DO-41 package. Both leads are electrically identical, allowing unrestricted orientation during placement. This symmetry eliminates assembly errors and simplifies layout in AC-coupled or floating circuits where the P4KE300CA-E3/54 is deployed.
What is the maximum steady-state power dissipation of the P4KE300CA-E3/54?
The P4KE300CA-E3/54 has a maximum steady-state power dissipation (PD) of 1.5 W when mounted on an infinite heatsink at a lead temperature (TL) of 75 °C. Derating applies above 25 °C ambient, and actual usable power depends on PCB copper area and airflow - this PD rating governs continuous leakage management and thermal design when the P4KE300CA-E3/54 operates near VWM in high-temperature environments.
P4KE300CA-E3/54 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):
- 256V
- Voltage - Breakdown (Min):
- 285V
- Voltage - Clamping (Max) @ Ipp:
- 414V
- Current - Peak Pulse (10/1000µs):
- 1A
- 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)
P4KE300CA-E3/54 FAQ
1.How can I place an order for P4KE300CA-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE300CA-E3/54 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 P4KE300CA-E3/54 reliable?
The price and inventory of P4KE300CA-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE300CA-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE300CA-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE300CA-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE300CA-E3/54?
P4KE300CA-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE300CA-E3/54 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 P4KE300CA-E3/54?
For technical support, including P4KE300CA-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE300CA-E3/54 requirements.
6.How does Aetrix verify that P4KE300CA-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE300CA-E3/54 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 P4KE300CA-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE300CA-E3/54?
All P4KE300CA-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE300CA-E3/54, 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 P4KE300CA-E3/54 part is unused and in its original packaging.
Return procedure for P4KE300CA-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE300CA-E3/54 Tags
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