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Diodes Incorporated P6KE400CA-T
- Part No.:
- P6KE400CA-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE400CA-T.pdf
- Description:
- TVS DIODE 342VWM 548VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:8,359
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Product details
Overview
P6KE400CA-T from Diodes Incorporated is a bidirectional 600W transient voltage suppressor (TVS) diode designed for overvoltage protection in DC power lines and signal interfaces. It features a 342V reverse standoff voltage (VRWM), 380V minimum breakdown voltage (VBR), 548V maximum clamping voltage (VC) at 1.1A peak pulse current (IPP), and DO-15 package with glass-passivated junction - used in industrial power supply input stages to absorb lightning-induced surges.
For engineers reviewing the P6KE400CA-T datasheet, P6KE400CA-T pinout, P6KE400CA-T application, or P6KE400CA-T equivalent, this page delivers verified electrical parameters, clamping behavior under 1.0ms 600W pulses, DO-15 terminal configuration, automotive-grade packaging compliance, and direct alternatives for legacy system maintenance and obsolescence mitigation.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling robust surge suppression without polarity dependency in AC-coupled or floating bus applications. Its glass-passivated die ensures stable VBR tolerance (±5% typical) and low leakage (<5µA at VRWM) up to +175°C junction temperature.
The device sustains 600W non-repetitive peak pulse power per the 10/1000µs waveform standard, with thermal resistance of 75°C/W (junction-to-ambient) and 15°C/W (junction-to-lead), supporting reliable operation when mounted on 40mm² copper land at TL = +75°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W (1.0ms 10/1000µs waveform; defines maximum single-event surge energy absorption capability) |
| Reverse Standoff Voltage (VRWM) | 342V (maximum continuous DC or RMS voltage before significant leakage; sets operating margin below clamping) |
| Breakdown Voltage (VBR) | 380V min @ IT = 1.0mA (voltage at which device enters avalanche conduction; confirms threshold accuracy for protection timing) |
| Clamping Voltage (VC) | 548V max @ IPP = 1.1A (voltage seen by protected circuit during surge; determines downstream component stress level) |
| Package | DO-15 (axial-leaded, 5.5–7.62mm body width; supports manual soldering and wave soldering per MIL-STD-202) |
| Operating Temperature | −55°C to +175°C (enables use in under-hood automotive, industrial motor drives, and outdoor telecom equipment) |
| RoHS Compliance | Lead-free, halogen-free, antimony-free per Diodes' Green definition (meets EU Directive 2011/65/EU with exemptions applied) |
Pinout & Package
DO-15 package: axial-leaded, molded plastic body (UL 94V-0), 0.4g weight, cathode band absent (bidirectional marking shows type number only). Leads are tin-plated, solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional avalanche junction terminals | No polarity distinction; either lead serves as input/output for transient energy diversion in either direction |
Key Features
| Feature | Design Value |
|---|---|
| 600W peak pulse rating | Enables protection against IEC 61000-4-5 Level 4 (4kV surge) on 48V DC distribution lines with margin |
| Glass-passivated junction | Ensures stable VBR over temperature and lifetime; eliminates passivation-related leakage drift in humid environments |
| Bidirectional configuration | Eliminates need for polarity-aware layout; simplifies PCB routing for AC mains inputs or differential data lines |
| Fast response time (<1ps) | Clamps transients before sensitive downstream ICs (e.g., microcontrollers, ADCs) experience overstress |
| DO-15 mechanical robustness | Withstands 100A peak forward surge (8.3ms half-sine); suitable for high-energy fault conditions in power converters |
Applications
| Industrial Power Supply Input | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: 24V/48V DC input stage of programmable logic controller (PLC) power supply exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Primary overvoltage clamp limiting transient voltage to ≤548V during 1.1A surge events. Use Value: Prevents damage to upstream rectifier diodes and downstream DC-DC controllers by diverting >99% of surge current away from sensitive nodes. |
Use Scenario: CAN-FD and LIN bus interface protection in BCM modules subjected to ISO 7637-2 Pulse 5a (load dump up to 60V). IC Role / Device Role / Timing Role: Bidirectional clamping element placed between bus line and ground, responding within picoseconds. Use Value: Maintains signal integrity by clamping bus voltage to safe levels without disrupting low-voltage logic thresholds or introducing capacitance-induced jitter. |
| Outdoor Telecom Remote Radio Unit (RRU) | Renewable Energy Inverter DC Link |
Use Scenario: Surge protection on 48V auxiliary power rail of RRU mounted on cell tower, subject to lightning-induced surges. IC Role / Device Role / Timing Role: First-line defense suppressing induced transients before they reach PMICs and FPGA power domains. Use Value: Withstands repeated 600W surges while maintaining VRWM stability across −40°C to +85°C ambient, ensuring field reliability. |
Use Scenario: DC link overvoltage clamp in solar string inverters where PV array voltage can exceed 1000V under fault conditions. IC Role / Device Role / Timing Role: Secondary protection device parallel to bulk capacitors, triggered only during fast-rising transients. Use Value: Limits voltage overshoot to <550V during IGBT turn-off spikes, preventing capacitor derating and MOSFET avalanche failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ400CA-T | Same VRWM (342V) and VC (548V), but SMB package (surface-mount); 600W rating retained | Requires rework of PCB layout for SMT assembly; unsuitable for through-hole legacy designs | Select when upgrading to automated assembly or space-constrained boards; verify thermal pad design for 75°C/W RθJA |
| 1.5KE400CA-T | Higher 1500W rating, same DO-15 package, VRWM = 342V, VC = 548V, but larger body (9.5mm length vs. 7.62mm) | Provides higher surge margin but requires revised mechanical cutout and may not fit existing DO-15 footprints | Choose for new designs needing extended surge endurance; verify board clearance and mounting hole alignment |
Compared with P6KE400CA-T, SMBJ400CA-T enables miniaturization and automated placement but sacrifices through-hole serviceability, while 1.5KE400CA-T increases energy handling at the cost of mechanical compatibility - both retain identical electrical protection thresholds but differ in form factor and thermal path design.
Availability
P6KE400CA-T is available at Aetrix Electronics and suitable for industrial power supply input protection, automotive body control modules, outdoor telecom remote radio units, and renewable energy inverter DC link circuits requiring stable component supply despite manufacturer discontinuation status.
Supply support for P6KE400CA-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 semiconductor company specializing in discrete, analog, and mixed-signal solutions, with manufacturing certified to IATF 16949 and product qualification to AEC-Q101 standards.
The P6KE series belongs to Diodes' transient voltage suppressor portfolio, engineered specifically for high-energy surge immunity in harsh-environment power systems - emphasizing reliability, tight VBR tolerance, and consistent clamping performance across temperature.
FAQ
Is P6KE400CA-T still in active production?
No - Diodes Incorporated has officially discontinued the P6KE400CA-T (Document DS21502 Rev. 20-4 states "OBSOLETE – PART DISCONTINUED"). Aetrix Electronics maintains limited legacy stock with full traceability and offers validated alternatives including SMBJ400CA-T and 1.5KE400CA-T for design continuity.
What is the difference between P6KE400A-T and P6KE400CA-T?
P6KE400A-T is unidirectional (cathode-banded), conducting surge current only from anode to cathode; P6KE400CA-T is bidirectional, with symmetrical avalanche behavior in both directions and no cathode marking. Electrical ratings (VRWM, VBR, VC) are identical, but circuit placement and polarity constraints differ.
Can P6KE400CA-T be used in automotive applications?
While P6KE400CA-T meets RoHS and JEDEC moisture sensitivity Level 1 requirements, it is not AEC-Q101 qualified. For automotive use, Diodes recommends contacting their sales team for PPAP-capable, IATF 16949-manufactured alternatives - though the device is widely deployed in non-safety-critical BCM and infotainment subsystems with customer validation.
What is the thermal derating behavior above +25°C ambient?
Per Figure 4 in DS21502, P6KE400CA-T's peak pulse power derates linearly: at +75°C ambient, it retains ~75% of rated 600W (≈450W); at +125°C, ~50% (≈300W). Steady-state dissipation drops to 5.0W at TL = +75°C on 40mm² copper, with RθJA = 75°C/W confirming natural convection limits.
P6KE400CA-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):
- 342V
- Voltage - Breakdown (Min):
- 380V
- Voltage - Clamping (Max) @ Ipp:
- 548V
- Current - Peak Pulse (10/1000µs):
- 1.1A
- 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-15
P6KE400CA-T FAQ
1.How can I place an order for P6KE400CA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE400CA-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 P6KE400CA-T reliable?
The price and inventory of P6KE400CA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE400CA-T is usually 5 days.
3.What payment methods are accepted for P6KE400CA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE400CA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE400CA-T?
P6KE400CA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE400CA-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 P6KE400CA-T?
For technical support, including P6KE400CA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE400CA-T requirements.
6.How does Aetrix verify that P6KE400CA-T is sourced from the original manufacturer or authorized distributors?
All P6KE400CA-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 P6KE400CA-T meets industry standards.
7.What is the process for return or replacement of P6KE400CA-T?
All P6KE400CA-T units undergo pre-shipment inspection (PSI). If there is an issue with P6KE400CA-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 P6KE400CA-T part is unused and in its original packaging.
Return procedure for P6KE400CA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE400CA-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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onsemi
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Diodes Incorporated
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Diodes Incorporated
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