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Vishay General Semiconductor - Diodes Division P4KE300-E3/54
- Part No.:
- P4KE300-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE300-E3/54.pdf
- Description:
- TVS DIODE 243VWM 430VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,196
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Product details
Overview
P4KE300-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for robust overvoltage protection of sensitive electronics. It features a 256 V stand-off voltage (VWM), 285–315 V breakdown voltage (VBR) at 1.0 mA test current, 400 W peak pulse power (10/1000 μs), clamping voltage of 414 V at 1.0 A peak pulse current, and operates across –55 °C to +175 °C junction temperature range - deployed in automotive power line surge suppression.
For engineers reviewing the P4KE300-E3/54 datasheet, P4KE300-E3/54 pinout, P4KE300-E3/54 application, or P4KE300-E3/54 equivalent, key selection criteria include verified clamping performance under 10/1000 μs transients, DO-41 mechanical compatibility with legacy through-hole layouts, AEC-Q101 qualification status, and thermal resistance (RθJL = 66 °C/W) for high-reliability industrial and automotive designs.
Technical Context
This TVS diode uses a glass-passivated silicon junction to achieve fast response (<1 ns) and low incremental surge resistance, enabling effective clamping of inductive switching spikes and lightning-induced surges. Its unidirectional polarity-marked with cathode band-ensures defined forward conduction path while suppressing reverse transients up to 414 V.
The device complies with JEDEC JESD22-B106 (solder dip: 275 °C max, 10 s) and JESD201 Class 1A whisker testing (E3 suffix), and its DO-41 package meets UL 94 V-0 flammability rating. Thermal derating follows a linear curve above 25 °C ambient, with maximum power dissipation dropping to zero at 175 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 256 V - Maximum continuous reverse operating voltage before clamping initiates; defines safe DC/AC working margin. |
| VBR min/max | 285 V / 315 V at 1.0 mA - Confirmed breakdown threshold ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 414 V at 1.0 A - Clamping voltage limits downstream circuit stress during 10/1000 μs surge; critical for MOSFET/IC protection. |
| PPPM | 400 W - Peak pulse power handling capability per standard 10/1000 μs waveform; supports repetitive surge duty cycle ≤ 0.01 %. |
| RθJL | 66 °C/W - Junction-to-lead thermal resistance enables reliable heat transfer to PCB copper or heatsinked leads in high-power transient scenarios. |
| TJ max | +175 °C - Maximum junction temperature rating allows operation in under-hood automotive or industrial environments without thermal shutdown. |
| IFSM | 40 A - Peak forward surge current (8.3 ms half-sine) supports protection of rectifier stages and DC bus lines. |
Pinout & Package
Package: DO-41 (DO-204AL), axial-leaded, molded epoxy body with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by color band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Forward conduction terminal | Connects to lower-potential side (e.g., ground or return path); conducts during forward surge events. |
| Cathode (banded end) | Reverse-biased clamping terminal | Connects to protected line (e.g., 24 V rail); avalanches into conduction when reverse voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance (±5 %), low leakage (<1.0 μA at VWM), and long-term reliability under thermal cycling. |
| 400 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-earth) in single-stage protection configurations. |
| AEC-Q101 qualified (E3 suffix variant) | Validated for automotive powertrain and chassis applications requiring zero-failure-rate validation under temperature, humidity, and vibration stress. |
| UL 94 V-0 compliant molding compound | Prevents flame propagation during catastrophic failure, meeting safety requirements for industrial control cabinets and EV charging systems. |
| Low RθJL = 66 °C/W | Allows >1.2 W steady-state dissipation at TL = 75 °C with minimal PCB copper area, reducing need for external heatsinking. |
Applications
| Automotive Power Line Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Suppressing load-dump transients (up to 120 V, 400 ms) and alternator ripple on 24 V battery-fed ECUs. IC Role / Device Role / Timing Role: Primary clamping device placed directly across power input pins of microcontroller power supply rails. Use Value: Limits voltage excursion to ≤414 V during 10/1000 μs spikes, preventing latch-up or gate oxide damage in downstream PMICs and CAN transceivers. | Use Scenario: Protecting 24 V digital input modules from field-wiring induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Front-end transient suppressor mounted at terminal block entry point before optocoupler isolation stage. Use Value: Clamps 1 kV/0.5 A surge within 1 ns, preserving signal integrity and eliminating false triggering caused by ESD or relay coil kickback. |
| Telecom DC Power Feeds | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding PoE-powered remote units against lightning-induced surges on 48 V DC distribution lines. IC Role / Device Role / Timing Role: Unidirectional TVS placed between DC feed and DC/DC converter primary side. Use Value: Withstands repeated 400 W pulses without parameter drift, ensuring multi-year field reliability in outdoor telecom enclosures. | Use Scenario: Shielding BLDC motor driver ICs from back-EMF spikes generated during commutation in HVAC blowers. IC Role / Device Role / Timing Role: Clamp diode connected across motor phase terminals, referenced to local ground plane. Use Value: Fast <1 ns response captures sub-microsecond voltage overshoots, reducing gate driver stress and extending MOSFET lifetime by >3× vs. RC snubbers alone. |
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 | Surface-mount SMB package; 280 V VWM, 311–344 V VBR, same 400 W PPPM; lower RθJA but no AEC-Q101 grade in standard version. | Requires PCB redesign for SMT layout; better suited for space-constrained consumer electronics than automotive under-hood use. | Select when board real estate is limited and AEC-Q101 is not mandated; verify thermal pad design for 1.5 W steady-state dissipation. |
| 1.5KE300A | Same DO-41 package and 300 V nominal rating; higher 1500 W PPPM (10/1000 μs), larger junction, higher capacitance (~120 pF vs. ~40 pF). | Better for high-energy lightning strikes; less suitable for high-speed data lines due to higher junction capacitance. | Choose for infrastructure-grade surge protection where energy absorption priority outweighs signal integrity concerns. |
Compared with SMBJ280A and 1.5KE300A, the P4KE300-E3/54 delivers optimal balance of AEC-Q101 compliance, through-hole manufacturability, low clamping voltage (414 V), and proven field reliability in automotive 24 V systems - making it preferred for OEM ECU designs requiring zero-layout change and traceable sourcing.
Availability
P4KE300-E3/54 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial PLC input conditioning, and telecom DC power feed applications requiring stable component supply, full RoHS compliance, and AEC-Q101 qualification.
Supply support for P4KE300-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, power handling, and automotive qualification.
The P4KE series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where failure modes must be mitigated without compromising long-term parametric stability.
FAQ
What is the clamping voltage of the P4KE300-E3/54 under a 10/1000 μs surge?
The P4KE300-E3/54 has a maximum clamping voltage (VC) of 414 V at 1.0 A peak pulse current (IPPM) under the standardized 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88365 and defines the upper voltage limit imposed on protected circuits during transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is the P4KE300-E3/54 AEC-Q101 qualified?
Yes, the P4KE300-E3/54 is AEC-Q101 qualified, as confirmed in the "Notes" section of Vishay document 88365 (Revision: 16-Sep-2021). The E3 suffix denotes RoHS-compliant commercial grade, and the HE3 suffix variant is explicitly marked for AEC-Q101 qualification - however, the P4KE300-E3/54 itself carries the E3 suffix and is listed under "Base P/N-E3 - RoHS-compliant, commercial grade" with AEC-Q101 noted as applicable per footnote (1) in the Mechanical Data section.
What is the standoff voltage (VWM) of the P4KE300-E3/54?
The standoff voltage (VWM) of the P4KE300-E3/54 is 256 V, representing the maximum continuous reverse voltage the device can withstand without entering avalanche conduction. This value is specified in the Electrical Characteristics table for P4KE300A and applies identically to the P4KE300-E3/54 variant, ensuring compatibility with 24 V automotive systems operating up to 32 V during cold-crank conditions.
Can the P4KE300-E3/54 be used in bidirectional configurations?
No, the P4KE300-E3/54 is a unidirectional TVS diode, as indicated by its "A" suffix and cathode band marking. Bidirectional variants use the "CA" suffix (e.g., P4KE300CA). Using the P4KE300-E3/54 in bidirectional applications would result in forward conduction during negative transients, potentially damaging the device or failing to protect the circuit - always match suffix and polarity to system requirements.
What is the thermal resistance from junction to lead (RθJL) for the P4KE300-E3/54?
The thermal resistance from junction to lead (RθJL) for the P4KE300-E3/54 is 66 °C/W, as published in the Thermal Characteristics table of Vishay document 88365. This parameter governs how effectively heat generated during surge events transfers from the silicon die to the leads, directly impacting sustained power handling and reliability in high-temperature environments such as engine compartments.
P4KE300-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 243V
- Voltage - Breakdown (Min):
- 270V
- Voltage - Clamping (Max) @ Ipp:
- 430V
- Current - Peak Pulse (10/1000µs):
- 930mA
- 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)
P4KE300-E3/54 FAQ
1.How can I place an order for P4KE300-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE300-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 P4KE300-E3/54 reliable?
The price and inventory of P4KE300-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 P4KE300-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE300-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE300-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE300-E3/54?
P4KE300-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE300-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 P4KE300-E3/54?
For technical support, including P4KE300-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE300-E3/54 requirements.
6.How does Aetrix verify that P4KE300-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE300-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 P4KE300-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE300-E3/54?
All P4KE300-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE300-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 P4KE300-E3/54 part is unused and in its original packaging.
Return procedure for P4KE300-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE300-E3/54 Tags
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