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Vishay General Semiconductor - Diodes Division P4KE350C-E3/54
- Part No.:
- P4KE350C-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE350C-E3/54.pdf
- Description:
- TVS DIODE 284VWM 504VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,984
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Product details
Overview
P4KE350C-E3/54 from Vishay General Semiconductor is a bidirectional TransZORB® transient voltage suppressor (TVS) diode in DO-41 package, designed for clamping high-energy transients on power and signal lines. It features a 300 V standoff voltage (VWM), 333–368 V breakdown voltage (VBR) at 1 mA, 400 W peak pulse power (10/1000 μs), 482 A peak pulse current (IPPM), and clamps to ≤602 V at rated current.
For engineers reviewing the P4KE350C-E3/54 datasheet, P4KE350C-E3/54 pinout, P4KE350C-E3/54 application, or P4KE350C-E3/54 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification (via HE3 suffix variant), DO-41 mechanical compatibility, and verified performance under 10/1000 μs surge waveforms in automotive and industrial protection circuits.
Technical Context
This device operates as a voltage-clamping protector with symmetrical bidirectional avalanche behavior-no polarity marking required. Its glass-passivated junction enables fast response (<1 ns), low incremental surge resistance, and stable clamping across -55 °C to +175 °C operating range.
The P4KE350C-E3/54 delivers 400 W peak pulse power per 10/1000 μs waveform at 0.01% duty cycle, with thermal resistance of 66 °C/W (junction-to-lead) and 100 °C/W (junction-to-ambient). It complies with JESD 22-B106 (275 °C solder dip) and JESD 201 Class 1A whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 300 V - Maximum continuous reverse working voltage before clamping initiates |
| VBR (Breakdown Voltage) | 333–368 V at 1 mA - Confirmed avalanche onset range ensuring predictable turn-on threshold |
| VC (Clamping Voltage) | ≤602 V at IPPM - Peak voltage seen by protected circuit during 482 A transient event |
| PPPM (Peak Pulse Power) | 400 W - Sustained energy absorption capability under standardized 10/1000 μs surge waveform |
| ID (Reverse Leakage) | 1.0 μA max at VWM - Minimal standby power loss and signal integrity impact in high-impedance circuits |
| TJ max | +175 °C - Enables operation in under-hood automotive and high-temperature industrial environments |
| Package | DO-41 (DO-204AL) - Industry-standard axial-leaded through-hole 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, RoHS-compliant, solderable per J-STD-002/JESD 22-B102. Bidirectional type - no cathode band or polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Identical avalanche behavior in both directions - no orientation required during PCB placement |
| Lead 1 / Lead 2 | Connection interface | Provides mechanical mounting and thermal path to PCB copper; RθJL = 66 °C/W supports moderate power dissipation |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC lines or differential signals without polarity constraints |
| 400 W peak pulse power (10/1000 μs) | Meets IEC 61000-4-5 Level 4 surge immunity requirements for industrial equipment interfaces |
| AEC-Q101 qualified variant available (P4KE350C-HE3/54) | Validated for automotive powertrain and body electronics applications requiring reliability certification |
| Glass passivated junction | Ensures stable VBR over lifetime and improved resistance to humidity-induced degradation |
| UL 94 V-0 molding compound | Supports flame-retardant system compliance in consumer and telecom end-equipment |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs against load dump and inductive switching transients. IC Role / Device Role / Timing Role: Primary clamping element placed at power entry point before DC/DC converter input. Use Value: Limits transient voltage to ≤602 V, preventing damage to downstream regulators and microcontrollers rated for <650 V absolute maximum. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events in factory automation. IC Role / Device Role / Timing Role: Low-capacitance shunt protector on twisted-pair signal lines interfacing to ADC inputs. Use Value: Sub-μA leakage at 300 V ensures minimal offset error; fast response preserves signal fidelity during sub-ns ESD events. |
| Telecom Line Card Surge Suppression | Consumer Appliance Motor Drive Protection |
Use Scenario: Secondary-level surge protection on DSL or Ethernet line cards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Coordinated clamping stage following gas discharge tube (GDT) primary protection. Use Value: 482 A IPPM rating handles residual energy after GDT crowbar action; DO-41 footprint allows easy replacement in legacy designs. |
Use Scenario: Suppressing back-EMF spikes from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Across-the-line TVS mounted directly across motor terminals. Use Value: Bidirectional symmetry accommodates reversing motor polarity; 175 °C TJ max supports sealed enclosure thermal environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ350CA | Surface-mount SMB package (vs. through-hole DO-41); same 300 V VWM, but lower 600 W PPPM rating | Requires PCB redesign for SMT assembly; better high-frequency response due to lower parasitic inductance | Select when board space is constrained and automated assembly is preferred over manual through-hole insertion |
| 1.5KE350CA | Higher 1500 W peak pulse power; larger DO-201 package; identical VWM/VBR/VC specs | Used where higher surge margin is mandated (e.g., outdoor telecom cabinets), but requires larger footprint and higher cost | Choose when system-level surge testing exceeds 400 W requirements and mechanical robustness is prioritized |
Compared with SMBJ350CA and 1.5KE350CA, the P4KE350C-E3/54 offers optimal balance of proven DO-41 reliability, AEC-Q101 availability, and cost-effective 400 W protection for mid-tier industrial and automotive modules where layout flexibility and legacy compatibility matter.
Availability
P4KE350C-E3/54 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC I/O protection, and telecom line card surge suppression requiring stable component supply and long-term manufacturability.
Supply support for P4KE350C-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 protection devices with emphasis on reliability and application-specific validation.
The P4KE350C-E3/54 belongs to Vishay's TransZORB® TVS family, engineered for robust transient suppression in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the clamping voltage of the P4KE350C-E3/54 at its rated peak pulse current?
The P4KE350C-E3/54 clamps to a maximum of 602 V when subjected to its rated peak pulse current of 482 A under the standard 10/1000 μs waveform. This value is measured per test condition specified in Vishay document 88365 and defines the upper voltage limit imposed on protected circuitry during surge events.
Is the P4KE350C-E3/54 suitable for automotive applications?
The P4KE350C-E3/54 itself is commercial-grade; however, its AEC-Q101-qualified counterpart P4KE350C-HE3/54 is explicitly validated for automotive use. Engineers selecting P4KE350C-E3/54 for automotive prototypes must verify qualification status per application criticality and consider upgrading to the HE3 suffix version for production deployment.
Does the P4KE350C-E3/54 have polarity markings?
No - the P4KE350C-E3/54 is a bidirectional TVS diode and carries no cathode band or polarity marking. Its symmetrical construction allows installation in either orientation on the PCB, simplifying layout and reducing assembly errors in AC-coupled or differential signal paths.
What is the thermal resistance of the P4KE350C-E3/54?
The P4KE350C-E3/54 has a typical junction-to-lead thermal resistance (RθJL) of 66 °C/W and junction-to-ambient resistance (RθJA) of 100 °C/W with 10 mm lead length. These values inform heatsinking decisions and derating curves when operating near maximum power dissipation limits.
How does the P4KE350C-E3/54 differ from unidirectional P4KE350A-E3/54?
The P4KE350C-E3/54 is bidirectional with symmetrical clamping in both directions and no polarity marking, whereas the P4KE350A-E3/54 is unidirectional, features a cathode band, and exhibits forward conduction below ~5.0 V. The "C" suffix denotes bidirectional functionality - critical for AC line or floating signal protection where polarity is undefined.
P4KE350C-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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 284V
- Voltage - Breakdown (Min):
- 315V
- Voltage - Clamping (Max) @ Ipp:
- 504V
- Current - Peak Pulse (10/1000µs):
- 790mA
- 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)
P4KE350C-E3/54 FAQ
1.How can I place an order for P4KE350C-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE350C-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 P4KE350C-E3/54 reliable?
The price and inventory of P4KE350C-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 P4KE350C-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE350C-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE350C-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE350C-E3/54?
P4KE350C-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE350C-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 P4KE350C-E3/54?
For technical support, including P4KE350C-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE350C-E3/54 requirements.
6.How does Aetrix verify that P4KE350C-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE350C-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 P4KE350C-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE350C-E3/54?
All P4KE350C-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE350C-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 P4KE350C-E3/54 part is unused and in its original packaging.
Return procedure for P4KE350C-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE350C-E3/54 Tags
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