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Vishay General Semiconductor - Diodes Division P6KE440C-E3/73
- Part No.:
- P6KE440C-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE440C-E3/73.pdf
- Description:
- TVS DIODE 356VWM 631VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,636
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Product details
Overview
P6KE440C-E3/73 from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, designed for clamping voltage transients on signal or power lines. It features 600 W peak pulse power (10/1000 μs), 376 V stand-off voltage (VWM), 418–462 V breakdown voltage (VBR at 1 mA), and clamps to ≤602 V at 1.00 A peak pulse current - used in automotive sensor line protection and industrial I/O interface surge suppression.
For engineers reviewing the P6KE440C-E3/73 datasheet, P6KE440C-E3/73 pinout, P6KE440C-E3/73 application, or P6KE440C-E3/73 equivalent, this page delivers verified electrical specs, thermal derating behavior, clamping performance under standardized surge waveforms, and AEC-Q101 qualification status for automotive-grade reliability assessment.
Technical Context
This bi-directional TVS operates symmetrically in both polarities with no polarity marking, enabling protection of AC-coupled or differential signal paths without orientation constraints. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and low incremental surge resistance, critical for consistent clamping across repetitive transients.
The device uses a 10/1000 μs double-exponential waveform test condition per REA standards, with thermal derating defined from TA = 25 °C up to TJ = 175 °C. Junction-to-lead thermal resistance is 20 °C/W, supporting reliable power dissipation in constrained PCB layouts with minimal heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 376 V - maximum continuous reverse working voltage before leakage exceeds 1 μA; defines safe operating margin below breakdown. |
| VBR (min/max) | 418 V / 462 V at 1 mA - tight 5 % tolerance ensures predictable turn-on across production lots and temperature. |
| VC @ IPPM | ≤602 V at 1.00 A - clamping voltage under full-rated 600 W transient, limiting downstream component stress. |
| PPPM | 600 W - peak pulse power handling capability with 10/1000 μs waveform, 0.01 % duty cycle. |
| TJ max. | 175 °C - maximum junction temperature rating supports operation in under-hood automotive environments. |
| RθJL | 20 °C/W - low junction-to-lead thermal resistance enables effective heat transfer to PCB copper or chassis. |
| AEC-Q101 | Qualified - validated for automotive applications including engine control modules and body electronics. |
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. No polarity marking - bi-directional symmetry confirmed per datasheet note.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional transient conduction path | No functional distinction between leads; either terminal serves as anode or cathode depending on transient polarity. |
| Leads (both) | Thermal and electrical interface | Provide mechanical mounting, current conduction, and primary heat path to PCB; RθJL = 20 °C/W measured from junction to lead center. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables ±5 % VBR tolerance and stable leakage (<1 μA at VWM) over temperature and lifetime. |
| 600 W peak pulse power (10/1000 μs) | Withstands high-energy surges common in automotive load-dump and inductive switching events without degradation. |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, humidity bias, and mechanical shock per JEDEC standards. |
| Low clamping ratio (VC/VBR ≈ 1.30) | Minimizes overvoltage exposure to protected ICs - e.g., 602 V clamp vs. 462 V max VBR ensures <1.3× margin. |
| UL 94 V-0 molding compound | Prevents flame propagation during fault conditions, satisfying safety requirements for industrial and transportation systems. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., oxygen, pressure) from ISO 7637-2 pulse 1/2a/5a transients. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed directly at connector entry point to shunt surge energy before reaching signal conditioning circuitry. Use Value: Limits transient voltage to ≤602 V while maintaining 376 V DC operating margin - prevents latch-up or gate oxide damage in 5 V/12 V sensor interfaces. |
Use Scenario: Safeguarding 24 V digital input modules in programmable logic controllers against field-wiring induced surges and ground bounce. IC Role / Device Role / Timing Role: Primary front-end TVS on dry-contact or optocoupler input channels, coordinated with series impedance for IEC 61000-4-5 Level 3 compliance. Use Value: Delivers 600 W surge handling with <1 ns response time, ensuring microsecond-level clamping before downstream Schmitt triggers or MCU GPIOs are overstressed. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Shielding RS-485/RS-422 transceivers in base station backhaul links from lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Bi-directional clamping element in hybrid protection circuit with GDT and series choke, placed before transceiver ESD diodes. Use Value: Symmetric clamping (no polarity dependency) simplifies layout on differential pairs; 418–462 V VBR aligns with 300–400 V telecom isolation requirements. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines, HVAC blowers, and power tools. IC Role / Device Role / Timing Role: Snubber-mounted across motor terminals or relay coils to absorb inductive kickback energy before it couples into MCU power rails. Use Value: 600 W rating handles repetitive 100–500 ms surges typical of motor start-stop cycles; RoHS-compliant matte tin leads ensure compatibility with lead-free reflow. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ400CA | DO-214AA package; 400 V VWM, 447–494 V VBR, 600 W rating, lower RθJA (50 °C/W vs. 75 °C/W). | Better suited for surface-mount layouts with limited board space; higher thermal efficiency in airflow-limited enclosures. | Select SMBJ400CA when SMT assembly, tighter thermal budget, or smaller footprint is required - not pin-compatible due to axial vs. SMD form factor. |
| 1.5KE440CA | Same DO-204AC package; identical VWM/VBR range but rated for 1500 W (10/1000 μs); larger die size and higher IPPM (2.25 A). | Targeted at higher-energy threat environments (e.g., utility meter surge immunity, railway signaling) where 600 W is insufficient. | Choose 1.5KE440CA only when system-level testing confirms need for >600 W surge handling - same footprint but higher cost and power dissipation. |
Compared with SMBJ400CA and 1.5KE440CA, P6KE440C-E3/73 offers optimal balance of cost, proven AEC-Q101 qualification, and sufficient 600 W clamping for mid-tier automotive and industrial applications - making it preferred for volume production where reliability and supply continuity are prioritized over extreme surge headroom or SMT conversion.
Availability
P6KE440C-E3/73 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O hardening, and telecom line interface surge suppression requiring stable component supply and long-term lifecycle support.
Supply support for P6KE440C-E3/73 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 TVS devices with emphasis on reliability, ruggedness, and automotive-grade qualification.
The P6KE series belongs to Vishay's TRANSZORB® TVS family, engineered for cost-effective, high-surge-capability protection in commercial and automotive applications where fast response and repeatable clamping are essential.
FAQ
What is the polarity configuration of P6KE440C-E3/73?
P6KE440C-E3/73 is a bi-directional TVS diode with symmetrical electrical characteristics in both directions. It has no polarity marking on the package, and either lead may serve as anode or cathode depending on transient polarity - confirmed by datasheet notation "CA suffix" and "electrical characteristics apply in both directions." This makes P6KE440C-E3/73 ideal for AC signal lines and differential buses where polarity reversal is possible.
Does P6KE440C-E3/73 meet automotive qualification standards?
Yes, P6KE440C-E3/73 is AEC-Q101 qualified, as explicitly stated in the Vishay datasheet revision 18-Sep-12 under "Notes" and "Ratings and Characteristics Curves." This qualification covers stress tests including temperature cycling, humidity bias, and mechanical shock - validating P6KE440C-E3/73 for use in engine control units, body electronics, and ADAS sensor modules where automotive-grade reliability is mandatory.
What is the clamping voltage of P6KE440C-E3/73 at its rated peak pulse current?
The clamping voltage (VC) of P6KE440C-E3/73 is guaranteed ≤602 V at IPPM = 1.00 A with a 10/1000 μs waveform, per the Electrical Characteristics table on page 2 of the Vishay datasheet. This value represents the maximum voltage seen by downstream circuitry during a full-rated 600 W transient - a critical parameter for ensuring protected ICs remain within absolute maximum ratings during surge events.
How does the thermal performance of P6KE440C-E3/73 affect PCB layout?
P6KE440C-E3/73 has a junction-to-lead thermal resistance (RθJL) of 20 °C/W and junction-to-ambient (RθJA) of 75 °C/W. To maintain TJ ≤175 °C under 5.0 W steady-state dissipation, PCB copper area connected to both leads must provide adequate heat spreading - typically ≥100 mm² per lead with 2 oz copper. Layouts should avoid narrow traces or thermal isolation that impede conduction to internal planes or chassis ground.
Is P6KE440C-E3/73 RoHS compliant and halogen-free?
Yes, P6KE440C-E3/73 carries the "E3" suffix, indicating RoHS compliance per Directive 2011/65/EU, and meets JEDEC JS709A halogen-free requirements. The datasheet confirms "Base P/N-E3 - RoHS compliant, commercial grade" and references Vishay's Material Category Policy certifying halogen-free status. Matte tin plating also satisfies JESD 201 Class 1A whisker resistance, supporting long-term reliability in vibration-prone applications.
P6KE440C-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 356V
- Voltage - Breakdown (Min):
- 396V
- Voltage - Clamping (Max) @ Ipp:
- 631V
- Current - Peak Pulse (10/1000µs):
- 950mA
- 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)
P6KE440C-E3/73 FAQ
1.How can I place an order for P6KE440C-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE440C-E3/73 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 P6KE440C-E3/73 reliable?
The price and inventory of P6KE440C-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE440C-E3/73 is usually 5 days.
3.What payment methods are accepted for P6KE440C-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE440C-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE440C-E3/73?
P6KE440C-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE440C-E3/73 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 P6KE440C-E3/73?
For technical support, including P6KE440C-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE440C-E3/73 requirements.
6.How does Aetrix verify that P6KE440C-E3/73 is sourced from the original manufacturer or authorized distributors?
All P6KE440C-E3/73 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 P6KE440C-E3/73 meets industry standards.
7.What is the process for return or replacement of P6KE440C-E3/73?
All P6KE440C-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE440C-E3/73, 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 P6KE440C-E3/73 part is unused and in its original packaging.
Return procedure for P6KE440C-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE440C-E3/73 Tags
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