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Taiwan Semiconductor Corporation P6KE27CA
- Part No.:
- P6KE27CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE27CA.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:5,162
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Product details
Overview
P6KE27CA from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection in DC power rails and signal lines. It features a 27 V nominal breakdown voltage (VBR min 24.3 V, max 29.7 V), 600 W peak pulse power rating at 10/1000 µs, clamping voltage of 39.1 V at 16 A peak surge current, and low dynamic impedance for effective voltage limiting. It is used in automotive body electronics, industrial I/O modules, and LED driver input stages to absorb ESD and inductive switching transients.
For engineers reviewing the P6KE27CA datasheet, P6KE27CA pinout, P6KE27CA application, or P6KE27CA equivalent, key selection criteria include its bidirectional DO-15 package, 21.8 V stand-off voltage (VWM), <1 μA reverse leakage at rated VWM, AEC-Q101 qualification status, and compatibility with IEC 61000-4-2/4-4/4-5 immunity requirements.
Technical Context
The P6KE27CA operates as a silicon avalanche diode with symmetrical bidirectional clamping behavior - identical electrical characteristics in both polarities due to its center-tapped single-die construction. Its fast response time (<5 ns for bidirectional mode) enables suppression of sub-microsecond transients such as ESD and electrical fast transients (EFT).
Thermal performance is defined by a maximum junction temperature of 175 °C and derating curves per Fig.2; it sustains 600 W non-repetitive surge only at TA = 25 °C, dropping to ~300 W at 75 °C ambient. The device uses a DO-204AC (DO-15) package with pure tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 21.8 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC rail margin below clamping threshold. |
| VBR (min/max) | 24.3 V / 29.7 V - Breakdown occurs within this range at 1 mA test current; ensures predictable turn-on across production lot and temperature. |
| VC @ IPP | 39.1 V at 16 A - Clamped voltage during 10/1000 µs surge; determines maximum stress imposed on downstream ICs during transient events. |
| PPK | 600 W - Peak pulse power handling capability; validates suitability for ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 line surge testing. |
| IR @ VWM | <1 μA - Reverse leakage at rated stand-off voltage; ensures negligible standby power loss and no interference with high-impedance sensing circuits. |
| TJ max | 175 °C - Maximum junction temperature; supports operation in under-hood automotive environments and sealed industrial enclosures. |
| Package | DO-204AC (DO-15) - Industry-standard axial leaded package with 0.400 g mass; compatible with wave and selective soldering processes. |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, molded plastic case with cathode band marking for unidirectional variants; P6KE27CA is bidirectional and marked without polarity band. Leads are pure tin-plated, solderable per J-STD-002, and meet UL 94V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction terminals | No functional polarity - either lead may connect to protected line or ground; enables flexible PCB layout without orientation constraints. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units, lighting modules, and body controllers per stress test requirements. |
| 600 W surge rating (10/1000 µs) | Withstands repetitive ISO 7637-2 Pulse 1 (inductive load dump) and IEC 61000-4-5 Combination Wave surges up to 1 kV/42 Ω. |
| Clamping voltage ≤39.1 V | Protects 24 V systems with 3.3 V/5 V logic interfaces by limiting transient overshoot well below IC absolute maximum ratings. |
| Fast response time <5 ns | Responds before most microcontroller I/O pins can be damaged by ESD events (IEC 61000-4-2 ±8 kV contact discharge). |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU; suitable for consumer, industrial, and automotive supply chains. |
Applications
| Automotive Lighting Control | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and LED driver ICs from load dump and alternator ripple in headlamp modules. IC Role / Device Role / Timing Role: Bidirectional TVS placed across 24 V supply rail and ground to clamp transients before they reach downstream regulators and drivers. Use Value: Prevents latch-up or permanent damage to 3.3 V MCU I/O pins during 12 V/24 V system-level surges per ISO 16750-2. |
Use Scenario: Shielding 24 V digital input channels in programmable logic controllers from field-wiring induced transients and EFT bursts. IC Role / Device Role / Timing Role: Primary front-end protection element located at terminal block entry point, ahead of optocoupler or Schmitt trigger input stage. Use Value: Maintains signal integrity during IEC 61000-4-4 Level 4 (4 kV) EFT testing without false triggering or channel dropout. |
| LED Driver Power Input | RS-485 Transceiver Protection |
Use Scenario: Safeguarding constant-current LED driver ICs against inductive kickback from relay-controlled AC mains switching. IC Role / Device Role / Timing Role: Parallel-connected TVS across bulk capacitor input to absorb 600 W energy spikes generated by relay coil de-energization. Use Value: Eliminates need for snubber RC networks while achieving >100,000-cycle reliability in commercial lighting fixtures. |
Use Scenario: Adding secondary-level surge immunity to RS-485 transceivers in building automation nodes exposed to long cable runs. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp between A/B differential lines and ground, minimizing signal distortion at 250 kbps. Use Value: Enables compliance with IEC 61000-4-5 Level 2 (1 kV line-to-ground) without degrading common-mode rejection ratio. |
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 | Lower PPK (600 W same), but smaller SMB package (3.5 mm × 4.6 mm); VBR min/max 21.6–26.4 V; VC = 38.9 V @ 15.4 A. | Surface-mount alternative for space-constrained PCBs; lacks AEC-Q101 qualification unless specified as SMBJ24CA-Q. | Select when board area is limited and reflow assembly is preferred over through-hole; verify thermal pad layout for 175 °C TJ. |
| 1.5KE27CA | Same DO-15 package and 27 V rating, but higher PPK (1500 W); larger case volume; VC = 43.0 V @ 35 A; slower thermal response. | Better suited for infrequent, high-energy surges (e.g., lightning-induced grid coupling); less optimal for repetitive EFT. | Choose for legacy designs requiring backward compatibility with 1.5KE footprint or where higher single-pulse margin is critical. |
Compared with SMBJ24CA and 1.5KE27CA, the P6KE27CA offers balanced surge capability, AEC-Q101 qualification, and proven reliability in automotive and industrial through-hole deployments - making it ideal for cost-sensitive, high-volume 24 V system protection where DO-15 mechanical robustness and qualification are mandatory.
Availability
P6KE27CA is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC digital inputs, and LED driver power inputs requiring stable component supply and full AEC-Q101 traceability.
Supply support for P6KE27CA 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 semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs, with global distribution and AEC-Q101 validation capabilities.
The P6KE series was developed specifically for automotive and industrial transient suppression, emphasizing high surge robustness, tight parameter distribution, and process consistency across voltage grades from 6.8 V to 440 V.
FAQ
What does the 'CA' suffix indicate in P6KE27CA?
The 'CA' suffix in P6KE27CA denotes a bidirectional configuration - meaning the device provides symmetrical clamping in both forward and reverse directions, unlike unidirectional 'C' versions. This makes P6KE27CA suitable for AC-coupled lines, differential buses like RS-485, or any application where polarity reversal or undefined signal direction exists. All electrical specs in the datasheet apply identically in both directions.
Is P6KE27CA AEC-Q101 qualified?
Yes, P6KE27CA is AEC-Q101 qualified, as confirmed in the "FEATURES" section and ORDERING INFORMATION (note 2: "H" means AEC-Q101 qualified, and P6KE27CA falls outside the excluded voltage range). This qualification covers stress tests including HTGB, HTRB, TCT, and ESD, validating its use in automotive powertrain, chassis, and body electronics.
What is the maximum clamping voltage of P6KE27CA and at what current is it measured?
The maximum clamping voltage (VC) of P6KE27CA is 39.1 V, measured at a peak pulse current (IPP) of 16 A using the standard 10/1000 µs double-exponential waveform. This value represents the upper limit of voltage seen by protected circuitry during worst-case surge conditions and is guaranteed across temperature and production lots per the datasheet's ELECTRICAL SPECIFICATIONS table.
Can P6KE27CA replace P6KE27A in a design?
No - P6KE27CA and P6KE27A are not interchangeable. P6KE27A is unidirectional with cathode marking and asymmetric behavior; P6KE27CA is bidirectional with no polarity marking and symmetrical clamping. Substituting one for the other risks incorrect protection in AC or floating-line applications and violates the device's intended circuit role. Always match suffix functionality to system architecture.
What is the standoff voltage (VWM) of P6KE27CA and why does it matter?
The standoff voltage (VWM) of P6KE27CA is 21.8 V - the maximum DC or continuous peak voltage the device will block without entering avalanche conduction. This parameter ensures reliable operation under normal 24 V system conditions while maintaining sufficient margin below the 24.3 V minimum breakdown voltage. Exceeding VWM risks excessive leakage or premature clamping, compromising system efficiency and noise immunity.
P6KE27CA 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):
- 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:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-15
P6KE27CA FAQ
1.How can I place an order for P6KE27CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE27CA 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 reliable?
The price and inventory of P6KE27CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE27CA is usually 5 days.
3.What payment methods are accepted for P6KE27CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE27CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE27CA?
P6KE27CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE27CA 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?
For technical support, including P6KE27CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE27CA requirements.
6.How does Aetrix verify that P6KE27CA is sourced from the original manufacturer or authorized distributors?
All P6KE27CA 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 meets industry standards.
7.What is the process for return or replacement of P6KE27CA?
All P6KE27CA units undergo pre-shipment inspection (PSI). If there is an issue with P6KE27CA, 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 part is unused and in its original packaging.
Return procedure for P6KE27CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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