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Vishay General Semiconductor - Diodes Division P4KE350CA-E3/54
- Part No.:
- P4KE350CA-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE350CA-E3/54.pdf
- Description:
- TVS DIODE 300VWM 482VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:6,616
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Product details
Overview
P4KE350CA-E3/54 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 400 W peak pulse power (10/1000 μs), 300 V standoff voltage (VWM), 333–368 V breakdown voltage (VBR at 1 mA), and clamps to ≤482 V at 0.83 A peak pulse current. Used in automotive sensor protection and industrial I/O interfaces.
For engineers reviewing the P4KE350CA-E3/54 datasheet, P4KE350CA-E3/54 pinout, P4KE350CA-E3/54 application, or P4KE350CA-E3/54 equivalent, key selection criteria include bidirectional clamping capability, DO-41 mechanical compatibility, AEC-Q101 qualification status, and thermal resistance (RθJL = 66 °C/W) for board-level surge robustness.
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) and low incremental surge resistance, critical for suppressing ESD and inductive switching spikes.
Rated for -55 °C to +175 °C junction temperature, it supports high-reliability automotive and industrial use. The 1.5 W steady-state power dissipation and 66 °C/W junction-to-lead thermal resistance define its continuous thermal management envelope under sustained leakage or repetitive surge conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 300 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 333 V / 368 V at 1 mA - ensures predictable avalanche initiation across production lot |
| VC @ IPPM | ≤482 V at 0.83 A - defines worst-case clamped voltage seen by protected circuitry |
| PPPM | 400 W (10/1000 μs) - quantifies single-event surge energy handling capacity |
| ID @ VWM | 1.0 μA - ultra-low leakage preserves signal integrity in high-impedance nodes |
| TJ max | +175 °C - enables operation in under-hood automotive or high-ambient industrial environments |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with matte tin-plated leads; compliant with J-STD-002 solderability and JESD 201 class 1A whisker testing. No polarity marking-symmetrical bidirectional terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Identical avalanche behavior in both directions; no cathode band marking required |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables <1 ns response time and stable VBR over lifetime, critical for ESD immunity |
| 400 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) without degradation |
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed industrial and automotive enclosures |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive kickback in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to limit transient voltage before reaching sensitive ICs. Use Value: Clamps 300 V transients to ≤482 V within nanoseconds, preserving signal fidelity and preventing latch-up in downstream ASICs. | Use Scenario: Shielding digital input modules in programmable logic controllers from field-wiring induced surges during maintenance or fault events. IC Role / Device Role / Timing Role: Primary front-end TVS on 24 V DC input channels, coordinated with series impedance for IEC 61000-4-4/5 compliance. Use Value: Withstands 400 W pulses without parameter shift, enabling >100,000 surge cycles per MIL-STD-883H Method 3015.7. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Safeguarding RS-485 transceivers and Ethernet PHYs in base station backhaul equipment exposed to lightning-induced surges. IC Role / Device Role / Timing Role: First-stage protection on differential data lines, paired with common-mode chokes for balanced transient suppression. Use Value: Symmetrical clamping maintains signal integrity on bidirectional buses while limiting common-mode voltage excursion to safe levels. | Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines and HVAC blowers connected to microcontroller GPIOs. IC Role / Device Role / Timing Role: Low-leakage (1 μA) shunt protector across motor terminals and controller sense lines. Use Value: Prevents false triggering of overvoltage detection circuits and extends MCU lifetime in high-humidity, vibration-prone environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ350CA | DO-214AA package; 600 W PPPM; lower RθJA (50 °C/W); same VWM/VBR range | Better thermal performance in high-density layouts; requires PCB footprint change | Select when higher surge margin or improved thermal dissipation is needed and board rework is acceptable |
| 1.5KE350CA | DO-201AD package; 1500 W PPPM; identical VWM/VBR; higher IFSM (200 A) | Higher single-pulse robustness for infrequent but extreme transients (e.g., AC mains coupling) | Choose for legacy designs using larger through-hole packages or where 1500 W surge headroom is mandated |
Compared with SMBJ350CA and 1.5KE350CA, the P4KE350CA-E3/54 offers optimal balance of DO-41 footprint compatibility, AEC-Q101 qualification, and 400 W surge rating-making it ideal for cost-sensitive, space-constrained automotive and industrial PCBs requiring proven reliability without layout revision.
Availability
P4KE350CA-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer appliance motor control requiring stable component supply and long-term lifecycle support.
Supply support for P4KE350CA-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 automotive-grade qualification.
The P4KE350CA-E3/54 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust, bidirectional transient suppression in harsh environments where AEC-Q101 compliance and stable clamping performance are mandatory.
FAQ
What is the clamping voltage of the P4KE350CA-E3/54 under maximum rated surge current?
The P4KE350CA-E3/54 clamps to a maximum of 482 V when subjected to its rated peak pulse current of 0.83 A (10/1000 μs waveform). This value is measured at the device terminals and defines the upper voltage limit imposed on protected circuitry during transient events. The clamping voltage remains consistent across temperature and aging due to the glass-passivated junction structure of the P4KE350CA-E3/54.
Is the P4KE350CA-E3/54 suitable for automotive applications?
Yes, the P4KE350CA-E3/54 is AEC-Q101 qualified and explicitly rated for automotive use. Its -55 °C to +175 °C operating junction temperature range, DO-41 mechanical robustness, and bidirectional clamping behavior make it appropriate for engine control units, body electronics, and ADAS sensor interfaces. The P4KE350CA-E3/54 meets the surge immunity requirements of ISO 7637-2 and ISO 16750-2 when properly implemented in circuit layout.
Does the P4KE350CA-E3/54 have polarity markings?
No, the P4KE350CA-E3/54 does not have polarity markings because it is a bidirectional TVS diode. Its symmetrical construction allows identical clamping performance in both directions, eliminating the need for cathode band identification. This simplifies PCB layout and reduces assembly errors compared to unidirectional variants like P4KE350A, which do feature a cathode band.
What is the maximum steady-state power dissipation of the P4KE350CA-E3/54?
The P4KE350CA-E3/54 has a maximum steady-state power dissipation (PD) of 1.5 W when mounted on an infinite heatsink at lead temperature TL = 75 °C. This rating assumes ideal thermal conduction and defines the upper limit of continuous power the device can safely dissipate without exceeding its 175 °C maximum junction temperature. In real-world PCBs, derating per Figure 5 of the Vishay datasheet is required based on actual thermal environment.
How does the P4KE350CA-E3/54 compare to unidirectional P4KE350A in terms of electrical performance?
The P4KE350CA-E3/54 and P4KE350A share identical VWM (300 V), VBR (333–368 V), and VC (≤482 V) specifications, but differ fundamentally in polarity behavior: the "CA" suffix denotes bidirectional operation with symmetrical clamping, while "A" indicates unidirectional operation with cathode-marked polarity. The P4KE350CA-E3/54 exhibits no forward voltage drop specification since it conducts equally in both directions, unlike the P4KE350A which specifies VF = 5.0 V at 25 A.
P4KE350CA-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):
- 300V
- Voltage - Breakdown (Min):
- 333V
- Voltage - Clamping (Max) @ Ipp:
- 482V
- Current - Peak Pulse (10/1000µs):
- 830mA
- 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)
P4KE350CA-E3/54 FAQ
1.How can I place an order for P4KE350CA-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE350CA-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 P4KE350CA-E3/54 reliable?
The price and inventory of P4KE350CA-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 P4KE350CA-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE350CA-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE350CA-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE350CA-E3/54?
P4KE350CA-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE350CA-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 P4KE350CA-E3/54?
For technical support, including P4KE350CA-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE350CA-E3/54 requirements.
6.How does Aetrix verify that P4KE350CA-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE350CA-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 P4KE350CA-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE350CA-E3/54?
All P4KE350CA-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE350CA-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 P4KE350CA-E3/54 part is unused and in its original packaging.
Return procedure for P4KE350CA-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE350CA-E3/54 Tags
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