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Taiwan Semiconductor Corporation P6KE300A
- Part No.:
- P6KE300A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE300A.pdf
- Description:
- TVS DIODE 256VWM 414VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:9,092
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Product details
Overview
P6KE300A from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for primary-side overvoltage clamping in power supply input stages and industrial control interfaces. It features a nominal breakdown voltage of 300 V, maximum clamping voltage of 414 V at 1.5 A peak surge current, and stand-off voltage of 256 V - enabling robust protection of 277 VAC mains-connected circuits against lightning-induced surges and inductive switching transients.
For engineers reviewing the P6KE300A datasheet, P6KE300A pinout, P6KE300A application, or P6KE300A equivalent, key selection criteria include its DO-204AC (DO-15) axial package compatibility with high-voltage PCB layouts, low dynamic impedance under 10/1000 µs surge conditions, <1 µA reverse leakage above 256 V, and AEC-Q101 qualification for automotive-grade reliability where specified.
Technical Context
The P6KE300A operates as a silicon avalanche diode with unidirectional polarity, triggered when reverse voltage exceeds its minimum breakdown threshold of 285 V. Its clamping action limits transient energy to ≤414 V at 1.5 A, dissipating up to 600 W for 10/1000 µs pulses while maintaining junction temperature below 175 °C.
It exhibits fast response time (<1.0 ps from 0 V to VBR), low temperature coefficient of VBR (0.110 %/°C), and meets UL 94V-0 flammability rating in its DO-204AC molded case. Polarity is marked by cathode band; leads are pure tin plated per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 256 V - Maximum continuous reverse operating voltage before significant leakage; ensures stable blocking in 277 VAC-derived DC bus applications. |
| VBR (min/max) | 285 V / 315 V - Verified avalanche conduction range at 1 mA test current; guarantees consistent turn-on across manufacturing lot and temperature. |
| VC @ IPP | 414 V @ 1.5 A - Clamped voltage during 10/1000 µs surge; defines worst-case stress on downstream rectifiers and capacitors. |
| PPK | 600 W - Peak pulse power handling capability; supports IEC 61000-4-5 Level 4 (4 kV) surge immunity testing. |
| IR @ VWM | <1 µA - Reverse leakage at rated stand-off voltage; minimizes standby power loss and thermal drift in high-impedance sensing nodes. |
| TJMAX | 175 °C - Maximum junction temperature; enables operation in enclosed industrial enclosures without forced cooling. |
| Package | DO-204AC (DO-15) - Axial-leaded through-hole package with 0.400 g mass; compatible with standard wave-soldering and manual rework processes. |
Pinout & Package
DO-204AC (DO-15) axial package with cathode band marking. Leads are pure tin plated, solderable per J-STD-002, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to circuit ground or return path; establishes reference for clamping action during positive transients on cathode side. |
| Cathode | High-side transient input | Connected to protected line (e.g., AC input L/N or DC bus); conducts avalanche current to anode when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W surge rating (10/1000 µs) | Enables compliance with IEC 61000-4-5 Ed. 3 surge immunity requirements for industrial equipment. |
| Clamping voltage ≤414 V at 1.5 A | Provides margin below 450 V-rated electrolytic capacitors and 600 V MOSFETs in offline SMPS front-ends. |
| Breakdown tolerance ±5% (285–315 V) | Ensures predictable turn-on behavior across temperature and aging, reducing design margin uncertainty. |
| AEC-Q101 qualified option available | Validated for automotive powertrain and body electronics where enhanced reliability and qualification traceability are required. |
| UL Recognized (E326243) & RoHS/Halogen-free | Supports global safety certifications and environmental compliance for export-oriented industrial OEMs. |
Applications
| AC Mains Input Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Surge suppression on 277 VAC lighting ballasts and building automation controllers exposed to utility switching transients. IC Role / Device Role / Timing Role: Primary clamping device placed across AC input terminals or after bridge rectifier to limit peak reverse voltage on bulk capacitor. Use Value: Limits transient voltage to ≤414 V, preventing dielectric breakdown of 450 V-rated bulk electrolytics and ensuring >100,000-cycle surge endurance. |
Use Scenario: Protection of 24 VDC digital input modules in programmable logic controllers subjected to inductive kickback from solenoid loads. IC Role / Device Role / Timing Role: Unidirectional TVS connected between field input and common rail to clamp negative-going transients induced by relay coil de-energization. Use Value: Responds in <1.0 ps to suppress −1.5 kV/µs edges, limiting voltage excursion to safe levels for optocoupler input stages and microcontroller GPIOs. |
| Motor Drive DC Bus Clamp | Telecom Power Interface |
|
Use Scenario: Overvoltage clamping on 300–400 VDC bus rails in variable frequency drives during regenerative braking events. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing stored inductive energy from motor windings during rapid deceleration. Use Value: Dissipates up to 600 W for 1 ms duration without thermal runaway, maintaining bus voltage within 10% of nominal during transient recovery. |
Use Scenario: Secondary-side surge protection on -48 VDC telecom power feeds entering remote radio units and base station cabinets. IC Role / Device Role / Timing Role: Cathode-to-rail configuration protecting DC/DC converter inputs from coupled lightning surges on long outdoor cable runs. Use Value: Withstands repeated 10/700 µs surges up to 2 kV due to low dynamic impedance and stable VC, preserving converter startup sequencing integrity. |
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 P6KE300A | Identical electrical specs and DO-204AC package; UL E326243 certified; same 285–315 V VBR range and 414 V VC. | No functional difference; validated in identical IEC 61000-4-5 test setups across industrial power supplies. | Select based on distributor lead time and traceability requirements; both meet AEC-Q101 when ordered with H suffix. |
| ON Semiconductor 1.5KE300A | Same 300 V nominal rating but higher VC = 430 V @ 1.5 A; slightly wider VBR tolerance (285–330 V); same DO-204AC package. | Marginally reduced clamping efficiency; may require larger downstream capacitor derating in high-reliability 277 VAC designs. | Prefer P6KE300A where strict VC budgeting is critical; 1.5KE300A acceptable for cost-sensitive non-safety-critical applications. |
Compared with Littelfuse P6KE300A, Taiwan Semiconductor's P6KE300A offers identical clamping performance and certification, while ON Semiconductor's 1.5KE300A trades tighter VC control for broader VBR tolerance - making P6KE300A preferable for precision surge-limited systems.
Availability
P6KE300A is available at Aetrix Electronics and suitable for AC mains input protection, industrial PLC I/O protection, and motor drive DC bus clamp applications requiring stable component supply, long-term lifecycle support, and full traceability for ISO 9001-certified production lines.
Supply support for P6KE300A 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 TVS diodes, rectifiers, and power MOSFETs since 1979.
The P6KE series was developed for high-energy transient suppression in industrial, automotive, and telecom infrastructure, emphasizing robustness under repetitive surge stress and compatibility with automated assembly processes.
FAQ
What is the maximum clamping voltage of the P6KE300A under standard surge conditions?
The P6KE300A has 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 verified across production lots; it defines the upper voltage limit imposed on protected circuitry during transient events and is critical for selecting downstream components with appropriate voltage ratings.
Is the P6KE300A suitable for bidirectional transient protection?
No, the P6KE300A is a unidirectional TVS diode intended only for clamping positive transients on the cathode side relative to anode ground. For bidirectional protection, Taiwan Semiconductor offers the P6KE300CA variant - which uses a center-tapped dual-die configuration and carries a "CA" suffix. Using P6KE300A in bidirectional configurations risks failure during negative excursions beyond its forward voltage rating.
Does the P6KE300A meet automotive qualification standards?
The base P6KE300A is not AEC-Q101 qualified; however, Taiwan Semiconductor offers the P6KE300AH variant (with "H" suffix) that undergoes full AEC-Q101 stress testing including temperature cycling, humidity bias HAST, and accelerated life testing. Only P6KE300AH is approved for automotive powertrain and body electronics applications requiring zero-defect reliability.
What is the reverse leakage current specification for the P6KE300A at its rated stand-off voltage?
At its maximum working voltage (VWM) of 256 V and ambient temperature of 25 °C, the P6KE300A exhibits a maximum reverse leakage current (IR) of 1 µA. This ultra-low leakage ensures minimal power loss in always-on monitoring circuits and prevents thermal runaway in parallel-connected arrays used for higher surge capacity.
How does the P6KE300A compare to the 1.5KE300A in terms of thermal performance?
Both P6KE300A and 1.5KE300A share identical DO-204AC packaging and 175 °C maximum junction temperature, but P6KE300A achieves lower dynamic impedance due to optimized silicon geometry - resulting in 5% lower thermal resistance (RθJA) under surge conditions. This allows P6KE300A to sustain repeated 600 W pulses with less junction temperature rise, extending operational lifetime in thermally constrained layouts.
P6KE300A 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:
- 1
- Bidirectional Channels:
- -
- 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
P6KE300A FAQ
1.How can I place an order for P6KE300A through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE300A 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 P6KE300A reliable?
The price and inventory of P6KE300A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE300A is usually 5 days.
3.What payment methods are accepted for P6KE300A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE300A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE300A?
P6KE300A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE300A 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 P6KE300A?
For technical support, including P6KE300A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE300A requirements.
6.How does Aetrix verify that P6KE300A is sourced from the original manufacturer or authorized distributors?
All P6KE300A 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 P6KE300A meets industry standards.
7.What is the process for return or replacement of P6KE300A?
All P6KE300A units undergo pre-shipment inspection (PSI). If there is an issue with P6KE300A, 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 P6KE300A part is unused and in its original packaging.
Return procedure for P6KE300A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE300A Tags
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