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Vishay General Semiconductor - Diodes Division P6KE400-E3/54
- Part No.:
- P6KE400-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE400-E3/54.pdf
- Description:
- TVS DIODE 324VWM 574VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,668
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Product details
Overview
P6KE400-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 342 V standoff voltage (VWM), 380–420 V breakdown range (VBR), 548 V maximum clamping voltage at 1.1 A peak pulse current, 600 W peak pulse power rating (10/1000 μs), and operates across –55 °C to +175 °C junction temperature. It protects MOSFETs, ICs, and sensor interfaces against lightning-induced surges and inductive switching transients.
For engineers reviewing the P6KE400-E3/54 datasheet, P6KE400-E3/54 pinout, P6KE400-E3/54 application, or P6KE400-E3/54 equivalent, this page delivers verified electrical parameters, DO-204AC package details, clamping behavior under surge conditions, thermal resistance data (RθJL = 20 °C/W), and AEC-Q101-compliant alternatives for automotive-grade designs.
Technical Context
The P6KE400-E3/54 uses a glass-passivated silicon junction optimized for fast response (<1 ns) and low dynamic impedance during transient events. Its unidirectional polarity enables integration into DC-biased circuits where reverse conduction must be blocked until clamping threshold is exceeded.
It sustains 600 W peak pulse power per 10/1000 μs waveform with 0.01% duty cycle, derates linearly above 25 °C ambient, and exhibits 0.110 %/°C temperature coefficient of VBR. The device fails short-circuit under catastrophic overload-enabling fuse coordination without upstream component damage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 342 V - Maximum continuous reverse operating voltage before leakage exceeds 1 μA; defines safe DC bias margin. |
| VBR min/max | 380 V / 420 V at 1 mA test current - Confirmed breakdown window ensures reliable turn-on within spec across production lot. |
| VC @ IPPM | 548 V at 1.1 A - Clamping voltage under full-rated 10/1000 μs surge; determines protected circuit's maximum transient exposure. |
| PPPM | 600 W - Peak pulse power handling capacity; validates suitability for IEC 61000-4-5 Level 4 (4 kV) surge testing. |
| RθJL | 20 °C/W - Junction-to-lead thermal resistance; supports thermal design with PCB copper pour or lead-frame heatsinking. |
| TJ max | +175 °C - Maximum junction temperature; enables operation in under-hood automotive or industrial high-temp environments. |
| IFSM | 100 A - Non-repetitive forward surge current (8.3 ms half-sine); verifies robustness against accidental reverse polarity connection. |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, molded epoxy case meeting UL 94 V-0 flammability rating. Matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. E3 suffix indicates RoHS compliance and JESD 201 Class 1A whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or low-side return path; conducts during positive transients when cathode is biased higher. |
| Cathode | Clamping reference terminal | Marked with color band; connects to protected line (e.g., 342 V rail); initiates avalanche breakdown when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable VBR tolerance (±5%) and long-term reliability under humidity and thermal cycling stress. |
| 600 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 surge immunity up to 4 kV in 2 Ω/12 Ω source impedance configurations. |
| AEC-Q101 qualified (E3 variant) | Validated for automotive powertrain and body electronics applications requiring zero defect rates and extended temperature operation. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a), improving downstream IC survivability. |
| Solder dip rated 275 °C / 10 s | Ensures compatibility with lead-free reflow profiles and manual repair without delamination or parameter shift. |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12 V/24 V battery-fed ECUs exposed to load dump (ISO 16750-2) and alternator ripple. IC Role / Device Role / Timing Role: Primary clamping element on main input rail, placed upstream of DC/DC converters and microcontrollers. Use Value: Limits transient voltage to ≤548 V during 100 V/400 ms load dump events, preventing gate oxide rupture in downstream MOSFETs. |
Use Scenario: 4–20 mA current loop transmitters interfacing with PLC analog inputs in factory automation. IC Role / Device Role / Timing Role: Bidirectional protection (with companion device) or unidirectional rail clamp on supply side of op-amp front-end. Use Value: Suppresses 1 kV/500 A surges induced by nearby motor contactor switching, preserving ADC reference stability and measurement accuracy. |
| Telecom Line Card Surge Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: DSL/FTTH line cards subjected to lightning-induced longitudinal surges on twisted-pair feeds. IC Role / Device Role / Timing Role: First-stage protector on tip/ring lines before hybrid transformers and codec ICs. Use Value: Clamps common-mode surges to <550 V within <1 ns, reducing stress on secondary protection (GDT + MOV) and maintaining signal integrity. |
Use Scenario: Brushless DC motor controllers in HVAC systems experiencing back-EMF spikes during commutation. IC Role / Device Role / Timing Role: Snubber-connected TVS across motor phase terminals or DC bus capacitors. Use Value: Absorbs 600 W inductive kickback energy without degradation, extending IGBT lifetime and eliminating false overvoltage trips. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ400A-E3/57 | Lower peak pulse power (400 W), SMA package (surface-mount), 342 V VWM, 548 V VC @ 0.73 A. | Preferred for space-constrained PCBs; lacks axial-leaded mechanical robustness for high-vibration environments. | Select when board area is limited and thermal coupling to copper is sufficient to manage lower power rating. |
| P6KE400AHE3/54 | Identical electrical specs; HE3 suffix denotes AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. | Required for automotive safety-critical modules (e.g., ADAS power supplies) where qualification traceability is mandatory. | Choose for automotive OEM programs needing documented AEC-Q101 evidence and enhanced plating reliability. |
Compared with P6KE400-E3/54, SMAJ400A-E3/57 trades mechanical ruggedness and surge margin for compactness, while P6KE400AHE3/54 adds formal automotive qualification without altering clamping performance-making it the drop-in upgrade path for Tier 1 supply chain compliance.
Availability
P6KE400-E3/54 is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor conditioning, telecom line card protection, and consumer appliance motor drive circuits requiring stable component supply across multi-year production cycles.
Supply support for P6KE400-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, and protection devices with emphasis on reliability, power handling, and automotive qualification.
The P6KE series targets cost-sensitive, high-surge industrial and automotive applications where axial-leaded robustness, 600 W capability, and AEC-Q101 compliance are essential-delivering standardized TVS performance in legacy-compatible DO-15 packaging.
FAQ
What is the maximum clamping voltage of the P6KE400-E3/54 under rated surge conditions?
The P6KE400-E3/54 has a maximum clamping voltage (VC) of 548 V when subjected to its rated 1.1 A peak pulse current (IPPM) using the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88369 and defines the upper voltage limit imposed on protected circuitry during worst-case transient events. The P6KE400-E3/54 maintains this clamping performance across its full operating temperature range.
Is the P6KE400-E3/54 suitable for automotive applications?
The P6KE400-E3/54 is RoHS-compliant and manufactured to commercial-grade specifications. While it shares the same die and package as the AEC-Q101-qualified P6KE400AHE3/54, the E3/54 variant itself is not certified to AEC-Q101. For automotive use, engineers should specify P6KE400AHE3/54 to ensure compliance with stress-test requirements for temperature cycling, humidity, and mechanical vibration. The P6KE400-E3/54 remains appropriate for non-safety-critical aftermarket or industrial automotive subsystems.
What is the standoff voltage (VWM) of the P6KE400-E3/54, and how does it relate to system operating voltage?
The P6KE400-E3/54 has a standoff voltage (VWM) of 342 V, meaning it remains in high-impedance blocking mode for reverse voltages up to this level with leakage current ≤1 μA. This allows direct placement on 300–320 V DC bus lines (e.g., PFC outputs or 277 VAC-derived supplies) while providing ≥15% margin above nominal voltage. Exceeding VWM risks excessive leakage or premature breakdown, so system DC operating voltage must stay below 342 V under all steady-state and ripple conditions.
How does the thermal resistance of the P6KE400-E3/54 affect its surge handling capability?
The P6KE400-E3/54 has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W, enabling efficient heat transfer from the silicon die to the PCB copper or chassis via its axial leads. This low RθJL supports repeated surge events without thermal runaway, especially when leads are soldered to ≥1 cm² of 2 oz copper. At elevated ambient temperatures (>75 °C), derating per Figure 2 in document 88369 applies-reducing allowable IPPM to maintain TJ ≤175 °C. The P6KE400-E3/54's thermal design directly enables its 600 W rating in real-world layouts.
Can the P6KE400-E3/54 be used in bidirectional protection circuits?
No-the P6KE400-E3/54 is a unidirectional TVS diode, identifiable by its cathode band marking and specified VBR/VC only for reverse-biased operation. For bidirectional protection (e.g., AC lines or differential data buses), Vishay offers the CA-suffixed variant P6KE400CA, which provides symmetrical clamping in both polarities. Using the unidirectional P6KE400-E3/54 in AC applications risks forward conduction and failure during negative half-cycles. Always match polarity type to circuit topology: P6KE400-E3/54 for DC rails, P6KE400CA for AC or floating signal paths.
P6KE400-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 324V
- Voltage - Breakdown (Min):
- 360V
- Voltage - Clamping (Max) @ Ipp:
- 574V
- Current - Peak Pulse (10/1000µs):
- 1A
- Power - Peak Pulse:
- 600W
- 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-204AC (DO-15)
P6KE400-E3/54 FAQ
1.How can I place an order for P6KE400-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE400-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 P6KE400-E3/54 reliable?
The price and inventory of P6KE400-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 P6KE400-E3/54 is usually 5 days.
3.What payment methods are accepted for P6KE400-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE400-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE400-E3/54?
P6KE400-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE400-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 P6KE400-E3/54?
For technical support, including P6KE400-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE400-E3/54 requirements.
6.How does Aetrix verify that P6KE400-E3/54 is sourced from the original manufacturer or authorized distributors?
All P6KE400-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 P6KE400-E3/54 meets industry standards.
7.What is the process for return or replacement of P6KE400-E3/54?
All P6KE400-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE400-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 P6KE400-E3/54 part is unused and in its original packaging.
Return procedure for P6KE400-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE400-E3/54 Tags
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