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Diodes Incorporated P6KE27CA-T
- Part No.:
- P6KE27CA-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE27CA-T.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:7,987
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Product details
Overview
P6KE27CA-T from Diodes Incorporated is a bidirectional 600W transient voltage suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 23.1V reverse standoff voltage (VRWM), 25.7V minimum breakdown voltage (VBR), 37.5V maximum clamping voltage (VC) at 16A peak pulse current, and DO-15 package with glass-passivated junction - used in automotive body control modules to suppress load-dump and inductive switching transients.
For engineers reviewing the P6KE27CA-T datasheet, P6KE27CA-T pinout, P6KE27CA-T application, or P6KE27CA-T equivalent, this page delivers verified electrical parameters, clamping performance under 1.0ms 8/20μs surge, thermal derating behavior, DO-15 mechanical dimensions, and direct alternatives for circuit redesign due to obsolescence status.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling single-device protection of AC-coupled or floating interfaces without polarity constraints. Its glass-passivated die ensures stable VBR tolerance (±5%) and low leakage (<5μA @ VRWM) even after repeated surge events.
The device sustains 600W peak pulse power for 1.0ms per IEC 61000-4-5, with clamping voltage tightly bounded at 37.5V up to 16A IPP - critical for safeguarding 24V automotive electronics against ISO 7637-2 Pulse 1/2a/2b/5a transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W for 1.0ms non-repetitive pulse - defines maximum transient energy absorption capability before failure. |
| Reverse Standoff Voltage (VRWM) | 23.1V - maximum continuous DC or RMS voltage the device blocks without significant leakage. |
| Breakdown Voltage (VBR) | 25.7V min / 28.4V max @ 1.0mA - voltage at which avalanche conduction begins, defining turn-on threshold. |
| Clamping Voltage (VC) | 37.5V max @ 16A IPP - maximum voltage seen by protected circuit during worst-case surge event. |
| Peak Pulse Current (IPP) | 16A @ 1.0ms - peak current the device safely shunts while maintaining specified VC. |
| Junction-to-Ambient RθJA | 75°C/W - thermal resistance determining temperature rise under steady-state power dissipation. |
| Operating Temperature | -55°C to +175°C - qualified for under-hood automotive environments and industrial power supplies. |
Pinout & Package
Package: DO-15 molded plastic case (UL 94V-0), 0.4g weight, 9.5mm lead length, with axial leads and no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current sink (negative half-cycle) | Conducts during negative surges; forms symmetrical clamping path with cathode. |
| Cathode | Transient current sink (positive half-cycle) | Conducts during positive surges; enables bidirectional clamping without external polarity management. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Single-device protection for AC or floating nodes - eliminates need for back-to-back unidirectional TVS pair. |
| Glass-passivated junction | Stable VBR drift <±3% after 1000 surge cycles - ensures long-term reliability in cyclic surge environments. |
| Fast response time | <1.0ps avalanche turn-on - limits voltage overshoot before clamping engages during ESD or fast transients. |
| RoHS-compliant lead finish | Lead-free plating meeting MIL-STD-202 solderability - supports automated reflow and wave soldering processes. |
Applications
| Automotive Power Distribution | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 24V supply inputs in body control units against ISO 7637-2 load-dump pulses (up to 120V/100ms). IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC converters and microcontroller power rails. Use Value: Limits rail voltage to ≤37.5V during 16A surge, preventing latch-up or permanent damage to downstream regulators and logic ICs. |
Use Scenario: Shielding analog input channels on programmable logic controller modules from field-wiring induced transients. IC Role / Device Role / Timing Role: Front-end transient suppression before precision op-amps and ADC front-ends. Use Value: Maintains signal integrity by clamping surges within 1.0ms while adding <0.5pF parasitic capacitance at 0V bias. |
| Telecom Line Interface | Renewable Energy Monitoring |
Use Scenario: Safeguarding RS-485 transceivers connected to outdoor cabling exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Secondary protection stage coordinated with GDT or polymer PTC upstream. Use Value: Responds within picoseconds to clamp fast-rising edges, reducing stress on transceiver ESD structures. |
Use Scenario: Protecting voltage-sense circuits in solar charge controllers from grid-switching transients. IC Role / Device Role / Timing Role: DC bus overvoltage limiter on battery-side monitoring paths. Use Value: Withstands repeated 10A/1ms surges without parameter shift - validated for 10-year field deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24CA | 400W rating, 24V VRWM, DO-214AA package - lower power, smaller footprint, higher thermal resistance (RθJA = 110°C/W). | Preferred for space-constrained PCBs where 400W surge margin suffices and leaded DO-15 is not required. | Select when board area is limited and thermal management allows higher junction temperature rise. |
| 1.5KE27CA | 1500W rating, same 23.1–28.4V VBR range, DO-201AD package - higher surge capacity but larger size and slower response (~5ps). | Suitable for high-energy industrial motor drives where 1.5kW pulse handling outweighs speed requirements. | Choose when protecting against longer-duration transients (e.g., IEC 61000-4-5 Level 4) where clamping speed is secondary. |
Compared with P6KE27CA-T, SMBJ24CA offers compactness at reduced surge margin, while 1.5KE27CA trades response speed for higher energy handling - selection depends on whether PCB space, thermal budget, or pulse energy dominates the design constraint.
Availability
P6KE27CA-T is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, telecom line interfaces, and renewable energy monitoring systems requiring stable component supply despite its obsolete status.
Supply support for P6KE27CA-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 automotive and industrial markets.
P6KE27CA-T belongs to the P6KE series of 600W axial-leaded TVS diodes, engineered specifically for cost-sensitive, high-volume automotive and industrial surge protection where DO-15 form factor and proven field reliability are essential.
FAQ
Is P6KE27CA-T still in active production?
No - Diodes Incorporated has officially discontinued the P6KE27CA-T (Document DS21502 Rev. 20-4 states "OBSOLETE – PART DISCONTINUED"). Aetrix Electronics maintains legacy inventory with full traceability and provides last-time-buy support, including batch documentation and RoHS compliance verification per original spec.
What is the difference between P6KE27A-T and P6KE27CA-T?
P6KE27A-T is unidirectional (cathode-banded), clamping only positive surges, while P6KE27CA-T is bidirectional (no band), providing symmetrical clamping for both polarities. Their VRWM (23.1V), VBR (25.7–28.4V), and VC (37.5V) are identical - the "C" suffix exclusively denotes bidirectional functionality.
Can P6KE27CA-T replace P6KE24CA-T in a 24V system?
No - P6KE24CA-T has 20.5–25.2V VBR and 33.2V VC, whereas P6KE27CA-T starts clamping at 25.7V and reaches 37.5V. Using it in place of P6KE24CA-T risks insufficient protection during 24V rail transients, as clamping initiates ~1.5V higher and peaks ~4.3V higher - potentially exceeding downstream IC absolute maximum ratings.
Does P6KE27CA-T meet AEC-Q101 qualification?
No - the datasheet explicitly states AEC-Q101 qualification applies only to parts designated for automotive use with change control (PPAP-capable, IATF 16949 manufacturing). P6KE27CA-T is a standard industrial-grade part; for AEC-Q101-compliant equivalents, consider Diodes' D3V3Mxx series or contact Aetrix for qualified alternatives.
P6KE27CA-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):
- 23.1V
- Voltage - Breakdown (Min):
- 25.7V
- Voltage - Clamping (Max) @ Ipp:
- 37.5V
- Current - Peak Pulse (10/1000µs):
- 16A
- 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
P6KE27CA-T FAQ
1.How can I place an order for P6KE27CA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE27CA-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 P6KE27CA-T reliable?
The price and inventory of P6KE27CA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE27CA-T is usually 5 days.
3.What payment methods are accepted for P6KE27CA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE27CA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE27CA-T?
P6KE27CA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE27CA-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 P6KE27CA-T?
For technical support, including P6KE27CA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE27CA-T requirements.
6.How does Aetrix verify that P6KE27CA-T is sourced from the original manufacturer or authorized distributors?
All P6KE27CA-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 P6KE27CA-T meets industry standards.
7.What is the process for return or replacement of P6KE27CA-T?
All P6KE27CA-T units undergo pre-shipment inspection (PSI). If there is an issue with P6KE27CA-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 P6KE27CA-T part is unused and in its original packaging.
Return procedure for P6KE27CA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE27CA-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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Diodes Incorporated
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