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Taiwan Semiconductor Corporation P6KE300CA
- Part No.:
- P6KE300CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE300CA.pdf
- Description:
- TVS DIODE 256VWM 414VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:2,939
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Product details
Overview
P6KE300CA 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 300V nominal standoff voltage (VWM = 256 V), 315 V minimum breakdown voltage (VBR), 414 V maximum clamping voltage at 1.5 A peak surge current, and 600 W peak pulse power rating per 10/1000 µs waveform - deployed in automotive lighting control modules to safeguard CAN transceivers against load dump and EFT events.
For engineers reviewing the P6KE300CA datasheet, P6KE300CA pinout, P6KE300CA application, or P6KE300CA equivalent, key selection criteria include bidirectional clamping symmetry, junction temperature derating above 25°C, compliance with AEC-Q101 (H-suffix variant), and DO-204AC package compatibility with IPC-7351B footprint standards.
Technical Context
The P6KE300CA operates as a silicon avalanche diode with symmetrical bidirectional breakdown behavior, enabling identical clamping performance in both polarities without external polarity management. Its low dynamic impedance (<0.5 Ω typical) and sub-5 ns response time ensure rapid voltage limiting during fast transients such as IEC 61000-4-4 EFT bursts.
Thermal design relies on junction-to-ambient conduction through axial leads mounted on 5 × 5 mm copper pads; power derating follows a linear curve from 100% at 25°C to zero at 175°C maximum junction temperature. The device meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 256 V - Maximum continuous reverse working voltage before leakage exceeds 1 µA; defines safe operating DC rail margin. |
| VBR (min/max) | 285 V / 315 V - Breakdown occurs within this band at 1 mA test current; ensures predictable clamping onset across production lot. |
| VC @ IPP | 414 V @ 1.5 A - Clamped voltage during 10/1000 µs surge; determines protected circuit's maximum overvoltage exposure. |
| PPK | 600 W - Peak pulse power handling capability; supports single-event surges up to 1.5 A under standard waveform. |
| TJ max | +175 °C - Maximum allowable junction temperature; enables operation in under-hood automotive environments. |
| Package | DO-204AC (DO-15) - Axial-leaded plastic package with tin-plated leads compliant to J-STD-002 solderability. |
Pinout & Package
DO-204AC (DO-15) package with axial leads: Cathode band marking denotes polarity for unidirectional variants only; P6KE300CA is bidirectional and lacks cathode band - terminals are functionally symmetric.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional avalanche junction | Either terminal serves as anode or cathode depending on transient polarity; no PCB orientation dependency. |
| Lead 1 / Lead 2 | Current path interface | Leads conduct surge current into PCB copper; thermal performance depends on pad size (5 × 5 mm min.) and trace width. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (H-suffix) | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per JESD47. |
| 600 W surge rating (10/1000 µs) | Withstands ISO 7637-2 Pulse 5a load dump energy without degradation when properly heatsinked. |
| Clamping voltage ≤414 V | Ensures downstream 3.3 V or 5 V logic ICs remain below absolute maximum ratings during 1.5 A transients. |
| Reverse leakage <1 µA @ 256 V | Minimizes standby power loss in always-on vehicle subsystems such as body control modules. |
| UL Recognized (E326243) | Meets UL 497B requirements for primary circuit surge protection in industrial and transportation equipment. |
Applications
| Automotive Lighting Control | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting LED driver ICs and MOSFET gate drivers from inductive kickback during headlamp switching. IC Role / Device Role / Timing Role: Bidirectional TVS placed across power input pins of LED controller ICs to clamp voltage spikes before they reach internal circuitry. Use Value: Prevents latch-up or gate oxide rupture in 40 V-rated controllers exposed to >300 V transients from 12 V battery line switching. |
Use Scenario: Shielding 24 V digital input channels in programmable logic controllers from field-wiring induced surges. IC Role / Device Role / Timing Role: Primary-level surge suppression ahead of optocoupler input stages and series current-limiting resistors. Use Value: Maintains signal integrity by limiting input voltage to ≤414 V, ensuring optocoupler CTR remains stable and isolation barrier integrity is preserved. |
| DC Power Rail Protection | RS-485 Transceiver Interface |
Use Scenario: Safeguarding 28 V avionics power distribution boards against lightning-induced surges on aircraft auxiliary buses. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between VIN and GND to absorb energy before it propagates to downstream DC-DC converters. Use Value: Enables compliance with DO-160 Section 22 Level 3 lightning-induced transient immunity without adding active crowbar circuits. |
Use Scenario: Protecting half-duplex RS-485 transceivers (e.g., SN65HVD230) in factory automation networks from ground potential differences and ESD. IC Role / Device Role / Timing Role: Bidirectional clamping device placed across differential bus lines (A/B) and shield to limit common-mode overvoltage. Use Value: Keeps transceiver differential input voltage within ±12 V common-mode range while suppressing >300 V common-mode transients to <414 V. |
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 SMAJ300CA | Same DO-214AC package; 300 V VWM, 414 V VC @ 1.5 A; 600 W rating; RoHS/halogen-free; no AEC-Q101 qualification. | Not qualified for automotive under-hood use; suitable for industrial/commercial systems where AEC-Q101 is not mandated. | Select when cost sensitivity outweighs automotive qualification requirement and board space allows SMA footprint. |
| ON Semiconductor 1.5KE300CA | Same electrical specs (VWM=256 V, VC=414 V); DO-201AD package (larger than DO-15); higher thermal mass; 1.5 kW rating (not 600 W). | Higher surge capacity suits infrequent but extreme transients (e.g., utility meter surge testing); larger footprint requires layout change. | Choose when system-level surge testing exceeds IEC 61000-4-5 Level 4 and DO-201AD mounting is acceptable. |
Compared with P6KE300CA, SMAJ300CA offers identical clamping performance in a surface-mount package but lacks automotive qualification, while 1.5KE300CA delivers higher surge robustness in a larger axial package - making P6KE300CA optimal for space-constrained AEC-Q101-compliant designs requiring precise 600 W rating.
Availability
P6KE300CA is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC I/O protection, and DC power rail protection requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6KE300CA 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, serving global automotive, industrial, and consumer markets since 1979.
The P6KE series belongs to TSC's AEC-Q101-qualified TVS portfolio engineered specifically for high-reliability transient suppression in harsh-environment applications including automotive powertrain, chassis, and body electronics.
FAQ
What is the maximum clamping voltage of the P6KE300CA under standard surge conditions?
The P6KE300CA exhibits a maximum clamping voltage (VC) of 414 V when subjected to a 10/1000 µs surge waveform at 1.5 A peak current. 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 ICs remain within their absolute maximum ratings.
Is the P6KE300CA suitable for automotive applications requiring AEC-Q101 qualification?
Yes, the P6KE300CA is AEC-Q101 qualified when ordered with the "H" suffix (e.g., P6KE300CAH). The base P6KE300CA part number itself is not automatically qualified - qualification applies only to versions explicitly marked per TSC's ordering code table, which specifies "H" as the AEC-Q101 indicator for voltages ≥300 V.
How does the bidirectional configuration of the P6KE300CA affect PCB layout compared to unidirectional TVS diodes?
The P6KE300CA's bidirectional configuration eliminates polarity constraints during placement - either lead may connect to any node in the protected circuit without risk of reverse-bias damage. Unlike unidirectional TVS diodes that require strict cathode/anode orientation relative to ground or supply, P6KE300CA simplifies layout and reduces assembly errors in differential or floating-line protection schemes.
What is the thermal derating behavior of the P6KE300CA above 25°C ambient temperature?
The P6KE300CA follows a linear thermal derating curve: its 600 W peak pulse power rating decreases proportionally from 100% at 25°C to zero at +175°C junction temperature. At 75°C ambient, the device retains approximately 65% of rated power (≈390 W), assuming standard mounting on 5 × 5 mm copper pads - a key consideration for under-hood or enclosed industrial enclosures.
Can the P6KE300CA be used to protect RS-485 communication lines, and what is its impact on signal integrity?
Yes, the P6KE300CA is commonly deployed across RS-485 differential pairs (A/B) and shield to suppress common-mode transients. With typical junction capacitance below 50 pF at 0 V bias, it introduces negligible loading on 12 Mbps or lower data rates - preserving signal rise/fall times and maintaining EMC compliance when combined with proper PCB routing and grounding practices.
P6KE300CA 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):
- 256V
- Voltage - Breakdown (Min):
- 285V
- Voltage - Clamping (Max) @ Ipp:
- 414V
- Current - Peak Pulse (10/1000µs):
- 1.5A
- 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
P6KE300CA FAQ
1.How can I place an order for P6KE300CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE300CA 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 P6KE300CA reliable?
The price and inventory of P6KE300CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE300CA is usually 5 days.
3.What payment methods are accepted for P6KE300CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE300CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE300CA?
P6KE300CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE300CA 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 P6KE300CA?
For technical support, including P6KE300CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE300CA requirements.
6.How does Aetrix verify that P6KE300CA is sourced from the original manufacturer or authorized distributors?
All P6KE300CA 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 P6KE300CA meets industry standards.
7.What is the process for return or replacement of P6KE300CA?
All P6KE300CA units undergo pre-shipment inspection (PSI). If there is an issue with P6KE300CA, 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 P6KE300CA part is unused and in its original packaging.
Return procedure for P6KE300CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE300CA Tags
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