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Vishay General Semiconductor - Diodes Division P4KE300A-E3/54
- Part No.:
- P4KE300A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE300A-E3/54.pdf
- Description:
- TVS DIODE 256VWM 414VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:6,387
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Product details
Overview
P4KE300A-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for circuit-level overvoltage protection against ESD, lightning surges, and inductive switching transients. It features a 256 V standoff voltage (VWM), 285–315 V breakdown voltage (VBR) at 1 mA, 400 W peak pulse power (10/1000 µs), and clamps to ≤414 V at 1.0 A peak pulse current - deployed on power rails and signal lines of industrial motor drives and automotive body control modules.
For engineers reviewing the P4KE300A-E3/54 datasheet, P4KE300A-E3/54 pinout, P4KE300A-E3/54 application, or P4KE300A-E3/54 equivalent, key selection criteria include verified clamping voltage under 414 V at 1.0 A, unidirectional polarity with cathode band marking, DO-41 mechanical compatibility, AEC-Q101 qualification status (not applicable to this E3 suffix variant), and thermal resistance (RθJA = 100 °C/W) for board-level thermal design.
Technical Context
This device operates as a silicon avalanche diode, leveraging glass-passivated junction technology to achieve fast response (<1 ns) and low incremental surge resistance. Its unidirectional configuration enables asymmetric clamping - reverse-biased conduction during overvoltage events while blocking forward current up to 3.5/5.0 V (VF) depending on VWM range.
The P4KE300A-E3/54 is rated for 175 °C maximum junction temperature and derates linearly above 25 °C ambient per Fig. 2; its 1.5 W steady-state power dissipation (PD) and 40 A IFSM rating support robust handling of repetitive transients in DC power inputs and relay coil suppression circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 256 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working margin. |
| VBR min/max | 285 V / 315 V at 1.0 mA - Confirmed avalanche onset range; ensures predictable turn-on across production lot. |
| VC @ IPPM | ≤414 V at 1.0 A - Clamped voltage during 10/1000 µs transient; determines protected circuit's maximum stress level. |
| PPPM | 400 W - Peak pulse power handling capability; validates survivability against IEC 61000-4-5 Level 4 surges. |
| IFSM | 40 A - Non-repetitive forward surge current (8.3 ms half-sine); supports inductive load snubbing without failure. |
| TJ max | +175 °C - Maximum junction temperature; enables operation in under-hood automotive or high-ambient industrial environments. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance (lead length = 10 mm); informs PCB copper area requirements for thermal management. |
Pinout & Package
Package: DO-41 (DO-204AL), molded epoxy body with matte tin-plated leads; meets UL 94 V-0 flammability rating and J-STD-002 solderability standard. Cathode indicated by color band on body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional TVS configuration. |
| Cathode | Avalanche clamping terminal | Marked end; connected to protected line (e.g., +24 V rail) - conducts reverse current during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable, repeatable avalanche characteristics and long-term reliability under repeated surge stress. |
| 400 W peak pulse power (10/1000 µs) | Validates compliance with IEC 61000-4-5 surge immunity requirements for industrial equipment interfaces. |
| Very fast response time (<1 ns) | Prevents voltage overshoot beyond clamping threshold during nanosecond-scale ESD events (IEC 61000-4-2). |
| Low incremental surge resistance | Minimizes voltage rise across the device during high-current transients, improving clamping precision. |
| RoHS-compliant, commercial grade (E3 suffix) | Meets JESD 201 Class 1A whisker test; suitable for consumer, industrial, and non-AEC-Q101 automotive subsystems. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of 24 V DC input stage against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges exceeding 256 V. Use Value: Limits transient voltage to ≤414 V at 1.0 A, preventing damage to upstream DC-DC converters and microcontrollers. |
Use Scenario: Surge suppression on LIN bus power supply lines exposed to battery disconnect transients. IC Role / Device Role / Timing Role: Standoff-rated TVS on 12 V auxiliary rail, absorbing energy from inductive solenoid switching. Use Value: Withstands 40 A single-half-sine surge (8.3 ms), enabling reliable operation in door lock and mirror actuator circuits. |
| Telecom Power Feeds | Consumer Appliance Control Boards |
Use Scenario: Overvoltage protection on -48 V telecom rectifier output feeding remote radio units. IC Role / Device Role / Timing Role: Reverse-biased TVS referenced to system ground, triggered only during positive-going surges. Use Value: 256 V VWM provides 20 % margin above nominal -48 V rail; 400 W PPPM handles lightning-induced coupling. |
Use Scenario: Input protection for AC-DC adapter secondary-side 12 V outputs powering smart appliance controllers. IC Role / Device Role / Timing Role: Unidirectional clamping device on regulated DC output, shunting surge energy to ground. Use Value: 175 °C TJ max allows placement near heat-generating transformers without derating loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ280A | DO-214AA package; 280 V VWM, 311–344 V VBR, 600 W PPPM, RθJA = 50 °C/W. | Higher power density and lower thermal resistance; requires SMC/SMB footprint change. | Select when higher surge margin or improved thermal performance is required and PCB layout permits SMD rework. |
| 1.5KE300A | DO-201AD package; identical VWM/VBR/VC specs but 1.5 kW PPPM, 100 A IPPM, larger body size. | Designed for higher-energy transients (e.g., AC mains input); incompatible DO-41 footprint. | Choose for legacy through-hole designs needing >400 W capability where board space allows larger axial package. |
Compared with SMBJ280A and 1.5KE300A, the P4KE300A-E3/54 offers optimal balance of DO-41 compatibility, 400 W surge rating, and cost-effective through-hole assembly - ideal for retrofitting or cost-sensitive industrial controls where 256 V standoff and ≤414 V clamping are sufficient.
Availability
P4KE300A-E3/54 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power feeds, and consumer appliance control boards requiring stable component supply with consistent DO-41 mechanical form factor and RoHS-compliant commercial-grade sourcing.
Supply support for P4KE300A-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The P4KE300A-E3/54 belongs to Vishay's TRANSZORB® TVS family, engineered for robust transient suppression in harsh electrical environments - targeting industrial automation, transportation, and infrastructure systems where surge immunity is critical.
FAQ
What is the standoff voltage rating of the P4KE300A-E3/54?
The P4KE300A-E3/54 has a maximum working standoff voltage (VWM) of 256 V. This value represents the highest continuous reverse voltage the device can block without entering avalanche conduction. It is derived from the 300 V nominal breakdown designation and aligns with industry-standard derating (≈85 % of VBR min). Engineers must ensure system operating voltage remains below this threshold to avoid premature clamping.
Is the P4KE300A-E3/54 AEC-Q101 qualified?
No, the P4KE300A-E3/54 is not AEC-Q101 qualified. The "E3" suffix denotes RoHS-compliant commercial-grade construction meeting JESD 201 Class 1A whisker testing. For AEC-Q101 qualification, Vishay offers the HE3 suffix variant (e.g., P4KE300AHE3/54), which undergoes additional stress testing for automotive under-hood applications. Always verify suffix coding before automotive deployment.
What is the clamping voltage of the P4KE300A-E3/54 under surge conditions?
The P4KE300A-E3/54 clamps to a maximum of 414 V when subjected to its rated 1.0 A peak pulse current (IPPM) using the standardized 10/1000 µs waveform. This clamping voltage is measured across the device terminals during transient conduction and defines the upper voltage limit imposed on downstream circuitry - critical for ensuring protected ICs remain within absolute maximum ratings.
Can the P4KE300A-E3/54 be used in bidirectional configurations?
No, the P4KE300A-E3/54 is strictly unidirectional. Its cathode band marking and electrical specifications (e.g., forward voltage VF = 5.0 V) confirm asymmetrical behavior. For bidirectional protection, Vishay specifies CA-suffixed variants such as P4KE300CA, which exhibit matched clamping in both polarities and lack polarity markings. Substituting unidirectional for bidirectional devices risks unprotected negative transients.
What is the thermal resistance of the P4KE300A-E3/54?
The P4KE300A-E3/54 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted with 10 mm lead length, per JEDEC standards. This value governs temperature rise under steady-state power dissipation (PD = 1.5 W) and influences layout decisions - e.g., minimum copper pour area and proximity to heat sources. For higher-power transient duty cycles, junction temperature must be calculated using transient thermal impedance curves (Fig. 7).
P4KE300A-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:
- 1
- Bidirectional Channels:
- -
- 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)
P4KE300A-E3/54 FAQ
1.How can I place an order for P4KE300A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE300A-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 P4KE300A-E3/54 reliable?
The price and inventory of P4KE300A-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 P4KE300A-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE300A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE300A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE300A-E3/54?
P4KE300A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE300A-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 P4KE300A-E3/54?
For technical support, including P4KE300A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE300A-E3/54 requirements.
6.How does Aetrix verify that P4KE300A-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE300A-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 P4KE300A-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE300A-E3/54?
All P4KE300A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE300A-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 P4KE300A-E3/54 part is unused and in its original packaging.
Return procedure for P4KE300A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE300A-E3/54 Tags
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