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Taiwan Semiconductor Corporation P6KE440C
- Part No.:
- P6KE440C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE440C.pdf
- Description:
- 600W, 440V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,380
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Product details
Overview
P6KE440C from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for high-energy surge protection in power and signal lines. It features a 440V nominal breakdown voltage (396–484 V), 600W peak pulse power rating at 10/1000μs, clamping voltage of 631V at 1A peak surge current, and low dynamic impedance for effective overvoltage clamping in automotive and industrial power supply rails.
For engineers reviewing the P6KE440C datasheet, P6KE440C pinout, P6KE440C application, or P6KE440C equivalent, key selection criteria include standoff voltage (356 V), clamping performance under 10/1000μs transients, AEC-Q101 qualification status, DO-204AC package compatibility, and bidirectional ESD/FTB immunity design requirements.
Technical Context
The P6KE440C operates as a silicon avalanche diode with symmetrical bidirectional conduction, enabling protection against both positive and negative polarity transients without external polarity management. Its junction capacitance is not specified in the provided data, and it exhibits a temperature coefficient of VBR at 0.110 %/°C - critical for thermal stability in wide-temperature environments.
This device is rated for non-repetitive 600W surge dissipation per 10/1000μs waveform, derated linearly above 25°C ambient, and supports steady-state power dissipation of 5W at 75°C with specified lead mounting conditions. It meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 396 V / 484 V - ensures reliable avalanche initiation across manufacturing tolerance and temperature range |
| VWM | 356 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| VC @ IPP | 631 V @ 1 A - clamping voltage during 10/1000μs surge defines protected circuit's maximum stress level |
| PPK | 600 W - peak pulse power handling capability determines survivability against lightning or inductive switch-off events |
| TJ max | +175 °C - enables operation in under-hood automotive or high-ambient industrial environments |
| Package | DO-204AC (DO-15) - industry-standard axial-leaded package with 0.400 g mass and tin-plated leads per J-STD-002 |
| Configuration | Bidirectional single-die - provides polarity-agnostic protection without external series components |
Pinout & Package
DO-204AC (DO-15) axial-leaded package with cathode band marking omitted for bidirectional configuration; terminals are non-polarized and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Either terminal conducts during overvoltage in either polarity; no fixed anode/cathode assignment |
| Leads (Tin-plated) | PCB interface & thermal path | Solderable per J-STD-002; thermal dissipation relies on 5×5 mm copper pads per lead per absolute ratings |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (H-suffix variant) | P6KE440H is automotive-grade; P6KE440C is standard industrial version without AEC-Q101 certification |
| Fast response time | <5.0 ns turn-on for bidirectional transients - limits voltage overshoot before clamping engages |
| Low dynamic impedance | Enables tight clamping ratio (VC/VBR ≈ 1.32) - reduces protected IC stress during surge events |
| UL recognition | UL File #E-326243 - validates safety compliance for end-equipment regulatory submissions |
| RoHS & halogen-free | Complies with IEC 61249-2-21 - supports environmentally constrained industrial and consumer designs |
Applications
| Automotive Power Line Protection | Industrial AC/DC Input Stage |
|---|---|
|
Use Scenario: Protecting 24V/48V vehicle subsystems (e.g., body control modules) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Primary clamping device placed across input rails to limit transient voltage to ≤631 V during 10/1000μs surges. Use Value: Prevents damage to downstream DC-DC converters and microcontrollers by clamping energy within 5 ns, meeting automotive EMC robustness targets. |
Use Scenario: Safeguarding rectified AC inputs in industrial PLC power supplies exposed to switching transients and lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional TVS placed after bridge rectifier to absorb line-to-line and line-to-ground transients. Use Value: Withstands 600W surges without degradation, enabling compliance with IEC 61000-4-5 Level 4 (4 kV) when combined with appropriate series impedance. |
| LED Driver Surge Suppression | Telecom Interface Protection |
|
Use Scenario: Shielding constant-current LED drivers in street lighting from inductive kickback and grid disturbances. IC Role / Device Role / Timing Role: Parallel-connected TVS across output terminals to clamp voltage spikes generated by long cable runs or relay switching. Use Value: Maintains LED string integrity by limiting transient overvoltage to 631 V, preventing premature failure of driver MOSFETs and sense resistors. |
Use Scenario: Protecting RS-485 transceivers and Ethernet PHYs in outdoor telecom cabinets from EFT and surge coupling. IC Role / Device Role / Timing Role: Bidirectional clamping element on differential bus lines to suppress common-mode transients up to 600W. Use Value: Enables system-level IEC 61000-4-4 (EFT) immunity up to 4 kV due to sub-5 ns response and low clamping voltage. |
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 SMAJ440A | Same DO-214AC (SMA) package; 440V VBR, 600W rating, but unidirectional only; requires dual-device layout for bidirectional protection | Requires two devices or external bridge for bidirectional use; less board-space efficient than P6KE440C | Select if SMA footprint is mandatory and polarity-aware design allows unidirectional placement with external steering diodes |
| Vishay 1.5KE440CA | Same DO-201AD package; 440V VBR, 1500W rating; higher surge capacity but larger footprint and higher clamping voltage (680 V) | Higher clamping voltage increases stress on protected ICs; suited for lower-sensitivity circuits with margin | Choose when 1500W surge headroom is required and PCB layout accommodates larger DO-201AD outline |
Compared with SMAJ440A and 1.5KE440CA, the P6KE440C offers native bidirectional protection in the compact DO-15 package with the lowest clamping voltage (631 V) among equivalents - optimizing protection margin for sensitive 400V-class power stages.
Availability
P6KE440C is available at Aetrix Electronics and suitable for automotive power rail protection, industrial AC/DC input stages, LED driver surge suppression, and telecom interface protection requiring stable component supply and traceable sourcing.
Supply support for P6KE440C 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power management, protection, and signal conditioning devices.
The P6KE series belongs to TSC's transient voltage suppressor product line, engineered specifically for high-reliability industrial and automotive surge immunity applications where robust 600W clamping and AEC-Q101 qualification are required.
FAQ
What is the polarity configuration of the P6KE440C?
The P6KE440C is a bidirectional TVS diode with symmetrical avalanche characteristics - neither terminal is designated anode or cathode. It clamps transients of either polarity equally, eliminating the need for polarity-aware PCB layout or external bridging components. This behavior is confirmed in the "Devices for Bipolar Applications" section of the datasheet, which explicitly assigns the "C" suffix to bidirectional types from P6KE6.8 through P6KE440.
Does the P6KE440C meet AEC-Q101 reliability standards?
No - the P6KE440C is the standard industrial-grade variant. AEC-Q101 qualification applies only to the P6KE440H variant (denoted by the "H" suffix in ordering codes). The "C" suffix indicates bidirectional functionality but does not imply automotive qualification. Engineers requiring AEC-Q101 must specify P6KE440H, which shares identical electrical parameters but undergoes additional stress testing per the AEC-Q101 standard.
What is the maximum clamping voltage of the P6KE440C under surge conditions?
The maximum clamping voltage (VC) of the P6KE440C is 631 V, measured at a peak pulse current (IPP) of 1 A with a 10/1000μs waveform. This value is specified in the Electrical Specifications table on page 3 of the datasheet and defines the upper voltage limit imposed on protected circuitry during standardized surge events.
Can the P6KE440C be used in place of the P6KE440A?
No - the P6KE440C and P6KE440A are distinct variants with different breakdown voltage ranges. The P6KE440A has a tighter VBR range of 418–462 V and a lower clamping voltage (602 V), while the P6KE440C specifies 396–484 V VBR and 631 V VC. Substituting one for the other may result in premature conduction or insufficient clamping margin depending on system voltage tolerances.
What is the thermal derating behavior of the P6KE440C above 25°C ambient?
The P6KE440C's peak pulse power rating of 600 W is derated linearly above 25°C ambient temperature, as shown in Figure 2 of the datasheet. At 75°C ambient, its surge capability drops to approximately 500 W; at 125°C, it falls to ~300 W. This derating must be applied in thermal design calculations for high-temperature enclosures or under-hood automotive applications.
P6KE440C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- P6KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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):
- 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)
P6KE440C FAQ
1.How can I place an order for P6KE440C through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE440C 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 reliable?
The price and inventory of P6KE440C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE440C is usually 5 days.
3.What payment methods are accepted for P6KE440C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE440C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE440C?
P6KE440C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE440C 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?
For technical support, including P6KE440C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE440C requirements.
6.How does Aetrix verify that P6KE440C is sourced from the original manufacturer or authorized distributors?
All P6KE440C 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 meets industry standards.
7.What is the process for return or replacement of P6KE440C?
All P6KE440C units undergo pre-shipment inspection (PSI). If there is an issue with P6KE440C, 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 part is unused and in its original packaging.
Return procedure for P6KE440C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE440C Tags
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