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Taiwan Semiconductor Corporation P6KE440CA
- Part No.:
- P6KE440CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE440CA.pdf
- Description:
- TVS DIODE 376VWM 602VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:6,853
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Product details
Overview
P6KE440CA from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power rails and signal lines. It features a 440V standoff voltage (VWM = 356 V), 396–484 V breakdown range (VBR), 631 V clamping voltage at 1.0 A peak pulse current, 600 W peak pulse power rating (10/1000 µs), and DO-204AC (DO-15) package - deployed in industrial motor drives, AC/DC power supplies, and telecom interface protection.
For engineers reviewing the P6KE440CA datasheet, P6KE440CA pinout, P6KE440CA application, or P6KE440CA equivalent, key selection criteria include bidirectional clamping behavior, 175°C maximum junction temperature, <1 µA reverse leakage at 356 V, fast 5 ns response time, and compliance with AEC-Q101 (H-suffix variant) for automotive-grade reliability validation.
Technical Context
The P6KE440CA operates as a silicon avalanche diode configured in a symmetrical bipolar structure, enabling identical clamping performance in both forward and reverse polarity transients. Its 600 W surge capability is defined per the standardized 10/1000 µs double-exponential waveform, with thermal derating above 25°C ambient per Fig.2 in the datasheet.
Junction capacitance is not specified for this high-voltage variant (≥400 V), confirming its suitability for low-frequency power-line and bulk supply rail protection rather than high-speed data line applications. The device exhibits a 0.110 %/°C temperature coefficient of VBR, indicating predictable voltage drift across its –55°C to +175°C operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 356 V - Maximum continuous DC or RMS voltage the device blocks without significant leakage. |
| VBR (Breakdown Voltage) | 396–484 V at 1 mA test current - Avalanche conduction initiates within this range, defining turn-on threshold. |
| VC @ IPPM (Clamping Voltage) | 631 V at 1.0 A peak pulse - Maximum voltage seen across protected circuit during worst-case 10/1000 µs surge. |
| PPK (Peak Pulse Power) | 600 W - Surge energy handling capacity under standard 10/1000 µs waveform, derated above 25°C. |
| IR @ VWM (Reverse Leakage) | <1 µA - Ensures minimal standby power loss and signal integrity in high-impedance circuits. |
| TJ MAX (Junction Temp) | +175°C - Enables operation in high-temperature environments such as enclosed power converters or under-hood automotive locations. |
| Response Time | 5.0 ns - Time from 0 V to VBR under bidirectional transient, ensuring protection before downstream IC damage occurs. |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, molded plastic case with cathode band marking for unidirectional variants; P6KE440CA is bidirectional and marked without polarity band per datasheet note "Polarity: As marked" - terminals are non-polarized and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional avalanche junction | Either lead serves as input/output; no polarity dependency - connects across protected line and ground or between differential lines. |
| Leads (Tin-plated) | Interconnect interface | RoHS-compliant, solderable per J-STD-002; meets JESD201 Class 2 whisker resistance for long-term reliability. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR and VC performance in both directions - eliminates need for orientation-aware PCB layout in AC or floating-rail systems. |
| 600 W surge rating (10/1000 µs) | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) when properly coordinated with upstream impedance. |
| AEC-Q101 qualified option (P6KE440CAH) | Validated for automotive powertrain and body electronics where extended temperature and reliability validation are mandatory. |
| UL Recognized (E326243) | Meets UL 94V-0 flammability and safety requirements for end-equipment certification in industrial and consumer products. |
| Low dynamic impedance | Enables tight clamping margin (VC/VBR ≈ 1.59) - reduces let-through energy to downstream components during surge events. |
Applications
| Industrial Motor Drives | AC/DC Power Supplies |
|---|---|
Use Scenario: Protection of rectifier output and DC bus against inductive kickback from contactors and relay coils. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed across bulk storage capacitor to limit transient spikes to safe levels. Use Value: Prevents MOSFET/IGBT failure by limiting bus voltage overshoot to ≤631 V during 600 W surge events. |
Use Scenario: Input-stage surge suppression on primary-side rectified AC lines before EMI filter and PFC stage. IC Role / Device Role / Timing Role: First-line defense against lightning-induced surges entering via mains input. Use Value: Absorbs up to 600 W of transient energy while maintaining <1 µA leakage at 356 V nominal line voltage. |
| Telecom Interface Protection | Automotive Body Control Modules |
Use Scenario: Protection of RS-485 transceivers and Ethernet PHYs connected to externally exposed ports. IC Role / Device Role / Timing Role: Bidirectional shunt device across differential pair or line-to-ground to clamp EFT and surge events. Use Value: 5 ns response ensures clamping activation before transceiver latch-up or internal ESD diode failure. |
Use Scenario: Protection of LIN/CAN physical layer inputs and power inputs in BCMs exposed to load dump and jump-start conditions. IC Role / Device Role / Timing Role: Secondary overvoltage clamp after primary TVS or fuse, rated for 175°C junction operation. Use Value: AEC-Q101-qualified variant (P6KE440CAH) supports automotive qualification with validated high-temp reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ440CA | Same DO-214AC (SMA) package; 600 W rating; VBR = 484–536 V; VC = 648 V at 1.0 A; slightly higher clamping voltage. | Surface-mount alternative requiring PCB redesign; better thermal dissipation in high-density layouts. | Select when board space constraints favor SMD or when automated assembly mandates surface-mount packaging. |
| ON Semiconductor 1.5KE440CA | Same DO-204AC (DO-15) package; 1500 W rating; VBR = 396–484 V; VC = 631 V at 2.4 A; higher surge capacity but larger footprint. | Higher-energy applications (e.g., utility meter surge immunity) where 1.5 kW pulse handling is required. | Select when system-level surge testing exceeds IEC 61000-4-5 Level 4 and requires >600 W headroom. |
Compared with SMAJ440CA and 1.5KE440CA, the P6KE440CA offers identical clamping performance in the same through-hole package but with lower surge rating - making it optimal for cost-sensitive, space-tolerant designs where 600 W compliance is sufficient and manual or wave soldering is preferred.
Availability
P6KE440CA is available at Aetrix Electronics and suitable for industrial motor drives, AC/DC power supplies, and telecom interface protection requiring stable component supply, long-lifecycle support, and RoHS-compliant sourcing.
Supply support for P6KE440CA 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and thyristors - headquartered in Hsinchu, Taiwan.
The P6KE series belongs to TSC's high-reliability transient suppression portfolio, engineered for robustness in harsh electrical environments including industrial automation, automotive subsystems, and infrastructure power systems.
FAQ
What is the maximum clamping voltage of the P6KE440CA under surge conditions?
The P6KE440CA has a maximum clamping voltage (VC) of 631 V when subjected to a 1.0 A peak pulse current with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring downstream components remain within their absolute maximum ratings.
Is the P6KE440CA unidirectional or bidirectional?
The P6KE440CA is a bidirectional TVS diode, indicated by the "CA" suffix per the datasheet: "For bidirectional use C or CA suffix for types P6KE6.8 – types P6KE440". It provides symmetrical clamping in both polarities, eliminating orientation concerns during placement and enabling use across AC lines or floating differential signals without polarity matching.
Does the P6KE440CA meet automotive qualification standards?
The base P6KE440CA is not AEC-Q101 qualified; however, the P6KE440CAH variant (with "H" suffix) is explicitly listed as AEC-Q101 qualified in the Ordering Information section. This qualification covers stress tests including temperature cycling, humidity bias, and high-temperature operating life - required for automotive body electronics and power distribution modules.
What is the junction temperature range for the P6KE440CA?
The P6KE440CA has a specified junction temperature range of –55°C to +175°C, confirmed in the Absolute Maximum Ratings table. This wide range supports deployment in demanding environments such as engine compartments, industrial inverters, and outdoor power equipment where ambient temperatures exceed 100°C and thermal management is constrained.
How does the P6KE440CA compare to the 1.5KE440CA in terms of surge capability?
The P6KE440CA is rated for 600 W peak pulse power (10/1000 µs), whereas the 1.5KE440CA delivers 1500 W under the same waveform. Both share identical VBR (396–484 V) and VC (631 V) values at their respective rated currents, but the 1.5KE440CA handles 2.4 A vs. 1.0 A - making it suitable for higher-energy threat environments like utility-connected equipment or heavy industrial controls.
P6KE440CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 376V
- Voltage - Breakdown (Min):
- 418V
- Voltage - Clamping (Max) @ Ipp:
- 602V
- Current - Peak Pulse (10/1000µs):
- 1A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-15
P6KE440CA FAQ
1.How can I place an order for P6KE440CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE440CA 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 P6KE440CA reliable?
The price and inventory of P6KE440CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE440CA is usually 5 days.
3.What payment methods are accepted for P6KE440CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE440CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE440CA?
P6KE440CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE440CA 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 P6KE440CA?
For technical support, including P6KE440CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE440CA requirements.
6.How does Aetrix verify that P6KE440CA is sourced from the original manufacturer or authorized distributors?
All P6KE440CA 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 P6KE440CA meets industry standards.
7.What is the process for return or replacement of P6KE440CA?
All P6KE440CA units undergo pre-shipment inspection (PSI). If there is an issue with P6KE440CA, 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 P6KE440CA part is unused and in its original packaging.
Return procedure for P6KE440CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE440CA Tags
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