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Diodes Incorporated P6KE300CA-T
- Part No.:
- P6KE300CA-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE300CA-T.pdf
- Description:
- TVS DIODE 256VWM 414VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:9,301
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Product details
Overview
P6KE300CA-T from Diodes Incorporated is a bidirectional 600W transient voltage suppressor (TVS) diode in DO-15 package, designed for overvoltage protection of DC power lines and signal interfaces. It features a 256V reverse standoff voltage (VRWM), 285–315V breakdown range (VBR), 414V maximum clamping voltage (VC) at 1.45A peak pulse current (IPP), and fast response time for ESD and surge suppression in industrial power supplies.
For engineers reviewing the P6KE300CA-T datasheet, P6KE300CA-T pinout, P6KE300CA-T application, or P6KE300CA-T equivalent, this page delivers verified electrical specs, DO-15 terminal mapping, real-world clamping performance data, and direct alternatives for legacy design continuity and obsolescence mitigation.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling robust protection against bipolar transients without polarity-sensitive placement. Its glass-passivated junction ensures stable VBR tolerance and low leakage (<5µA @ VRWM), while the 600W peak pulse rating (10/1000µs waveform) supports IEC 61000-4-5 Level 3 surge immunity.
The device is rated for -55°C to +175°C operating temperature and exhibits 75°C/W junction-to-ambient thermal resistance. Its 0.4g mass and UL 94V-0 molded plastic package meet mechanical reliability requirements for through-hole mounting in high-reliability industrial and automotive-qualified systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W (10/1000µs waveform; defines maximum transient energy absorption capability) |
| Reverse Standoff Voltage (VRWM) | 256V (maximum continuous DC or RMS voltage before significant leakage begins) |
| Breakdown Voltage (VBR) | 285–315V @ 1mA (guaranteed conduction onset range under specified test current) |
| Max Clamping Voltage (VC) | 414V @ 1.45A IPP (voltage seen by protected circuit during worst-case surge event) |
| Peak Pulse Current (IPP) | 1.45A (maximum non-repetitive surge current the device can safely clamp) |
| Junction Temp Range | -55°C to +175°C (enables operation in harsh environments including engine compartments) |
| Package | DO-15 (standard axial-leaded through-hole package with 9.5mm lead length for 5W steady-state dissipation) |
Pinout & Package
DO-15 package: axial-leaded, molded plastic body (UL 94V-0), cathode band not marked on bidirectional version (P6KE300CA-T). Leads are solderable per MIL-STD-202, Method 208; moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Transient current entry (negative polarity) | Conducts during negative surges; symmetrical with Cathode for bidirectional clamping |
| Cathode (Lead 2) | Transient current entry (positive polarity) | Conducts during positive surges; identical electrical behavior to Anode in CA-series devices |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC lines or polarity-agnostic DC rails without external diode pairing |
| Glass-passivated junction | Ensures tight VBR tolerance (±5%), low leakage (<5µA), and long-term stability under thermal cycling |
| 600W peak pulse rating | Meets IEC 61000-4-5 surge immunity up to 1kV open-circuit / 0.5kV source impedance for industrial equipment |
| RoHS-compliant lead finish | Lead-free plating compatible with standard reflow and wave soldering processes; no post-solder cleaning required |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Protecting 24V DC input stage of programmable logic controllers (PLCs) against load dump and inductive switching transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC converters and microcontroller power rails. Use Value: Limits transient voltage to ≤414V, preventing damage to downstream 36V-rated input capacitors and LDO regulators. | Use Scenario: Safeguarding LIN bus interface and sensor supply lines in BCMs exposed to battery voltage spikes during alternator regulation faults. IC Role / Device Role / Timing Role: Bidirectional transient suppressor on 12V auxiliary rail feeding door lock actuators and interior lighting drivers. Use Value: Clamps both positive load-dump surges and negative reverse-battery events within 1ns response time, preserving CAN/LIN communication integrity. |
| Telecom Central Office Equipment | Renewable Energy Inverter DC Link |
Use Scenario: Shielding Ethernet PHY power pins and PoE injectors from lightning-induced surges on outdoor copper plant wiring. IC Role / Device Role / Timing Role: Secondary-level TVS on isolated 48V bias rails, coordinated with primary GDT-based protection. Use Value: Provides <100ps response and sub-10pF capacitance to avoid signal integrity degradation on 100BASE-TX lines. | Use Scenario: Protecting gate driver ICs and current sense amplifiers connected to high-voltage DC link (300–400V) in solar string inverters. IC Role / Device Role / Timing Role: Fast-acting clamp on auxiliary supply rails derived from DC link via resistive dividers or flyback transformers. Use Value: Absorbs 600W surge energy without thermal runaway, maintaining isolation barrier integrity during grid fault conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ300CA | Same VRWM/VBR/VC ratings but SMC (DO-214AB) surface-mount package; 600W rating at 25°C ambient | Requires PCB redesign for SMT assembly; lower thermal resistance (RθJA = 40°C/W) enables higher sustained surge duty cycles | Select when upgrading to automated assembly or improving thermal performance in compact enclosures |
| 1.5KE300CA | Same electrical specs but higher 1500W peak pulse rating; DO-201AD package; 5W steady-state power dissipation | Physically larger; requires more board space but handles repetitive surges better in high-duty-cycle applications | Select when protecting circuits subject to frequent transients (e.g., motor drives) where 600W may be insufficient |
Compared with P6KE300CA-T, SMBJ300CA offers superior thermal performance and SMT compatibility at the cost of through-hole replacement feasibility, while 1.5KE300CA provides higher surge margin and ruggedness for demanding industrial environments-both require layout or sourcing adjustments but preserve identical clamping behavior.
Availability
P6KE300CA-T is available at Aetrix Electronics and suitable for industrial power supply protection, automotive body control modules, and telecom central office equipment requiring stable component supply despite its obsolete status at Diodes Incorporated.
Supply support for P6KE300CA-T 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability protection, power management, and signal integrity solutions for industrial, automotive, and computing markets.
The P6KE series belongs to Diodes' transient voltage suppressor portfolio, engineered specifically for cost-effective, high-energy surge protection in legacy through-hole designs where DO-15 footprint and proven field reliability are critical.
FAQ
Is P6KE300CA-T still in active production?
No-Diodes Incorporated has officially discontinued the P6KE300CA-T (Document DS21502 Rev. 20-4 states "OBSOLETE – PART DISCONTINUED"). However, Aetrix Electronics maintains legacy inventory and offers controlled-life supply chain support, including traceable batch documentation and extended procurement planning for ongoing production runs.
What is the difference between P6KE300A-T and P6KE300CA-T?
P6KE300A-T is unidirectional (cathode-banded), conducting only during positive surges, while P6KE300CA-T is bidirectional (no cathode band), providing symmetrical clamping for both polarities. Their VRWM, VBR, VC, and IPP values are identical; the 'C' suffix explicitly denotes bidirectional functionality per Diodes' datasheet Note 4.
Can P6KE300CA-T replace P6KE270CA-T in a 270V system?
No-P6KE300CA-T has a 256V VRWM and 285–315V VBR range, making it unsuitable for systems operating near 270V DC. Using it risks premature conduction and thermal failure. The P6KE270CA-T (VRWM = 231V, VBR = 257–284V) is the correct match; substituting requires verifying clamping voltage margin relative to downstream component ratings.
Does P6KE300CA-T meet AEC-Q200 for automotive use?
No-the datasheet explicitly states that AEC-Q200 qualification requires special change control, PPAP capability, and IATF 16949 manufacturing; standard P6KE300CA-T is not AEC-Q200 qualified. For automotive applications, Diodes recommends contacting their sales team for qualified variants such as the AEC-Q200-compliant SMAJ300CA or SMCJ300CA series.
P6KE300CA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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):
- 1.45A
- 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-15
P6KE300CA-T FAQ
1.How can I place an order for P6KE300CA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE300CA-T 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-T reliable?
The price and inventory of P6KE300CA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE300CA-T is usually 5 days.
3.What payment methods are accepted for P6KE300CA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE300CA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE300CA-T?
P6KE300CA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE300CA-T 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-T?
For technical support, including P6KE300CA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE300CA-T requirements.
6.How does Aetrix verify that P6KE300CA-T is sourced from the original manufacturer or authorized distributors?
All P6KE300CA-T 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-T meets industry standards.
7.What is the process for return or replacement of P6KE300CA-T?
All P6KE300CA-T units undergo pre-shipment inspection (PSI). If there is an issue with P6KE300CA-T, 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-T part is unused and in its original packaging.
Return procedure for P6KE300CA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE300CA-T Tags
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ESD9B5.0ST5G
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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