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Taiwan Semiconductor Corporation P6KE27CAH
- Part No.:
- P6KE27CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE27CAH.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,565
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Product details
Overview
P6KE27CAH from Taiwan Semiconductor is a bidirectional 600W transient voltage suppressor (TVS) diode designed for high-energy surge protection in automotive and industrial power rails. It features a 27V nominal breakdown voltage, 24.3–29.7V VBR range at 1mA test current, 21.8V stand-off voltage (VWM), clamps to ≤39.1V at 16A peak surge current, and operates across –55°C to +175°C junction temperature - deployed in DC power input stages of automotive ECUs and industrial PLCs.
For engineers reviewing the P6KE27CAH datasheet, P6KE27CAH pinout, P6KE27CAH application, or P6KE27CAH equivalent, key selection criteria include its AEC-Q101 qualification, DO-204AC (DO-15) package compatibility, bidirectional clamping symmetry, 10/1000μs waveform surge rating, and low leakage (<1μA at 21.8V) under normal operating conditions.
Technical Context
The P6KE27CAH is a single-die, bidirectional TVS diode optimized for fast transient suppression in ungrounded or floating signal/power lines. Its low dynamic impedance ensures stable clamping during 10/1000μs surges up to 600W, while its <5ns response time enables protection against EFT and lightning-induced transients before downstream ICs are damaged.
It exhibits symmetrical electrical characteristics in both directions, with identical VBR, VC, and IPP ratings forward and reverse. The device's temperature coefficient of VBR is 0.096%/°C, enabling predictable voltage drift over wide ambient ranges - critical for automotive under-hood applications where thermal stability is mandatory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Voltage | 27 V - defines primary clamping threshold for bidirectional surge events |
| Breakdown Voltage VBR | 24.3–29.7 V at 1 mA - guarantees reliable conduction onset within defined tolerance band |
| Stand-off Voltage VWM | 21.8 V - maximum continuous reverse voltage before leakage exceeds 1 μA |
| Peak Pulse Power PPK | 600 W at 10/1000 μs - sustains high-energy transients without failure |
| Clamping Voltage VC | ≤39.1 V at 16 A IPP - limits protected circuit voltage to safe level during surge |
| Junction Temperature Range | –55°C to +175°C - supports operation in under-hood automotive and industrial environments |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability per stress test requirements |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, epoxy-molded case with UL 94V-0 flammability rating and pure tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (marked band) | Bidirectional terminal pair | No polarity distinction - symmetric conduction in both directions; cathode band denotes reference orientation only |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics including engine control, body modules, and ADAS power supplies |
| 600W surge capability | Withstands ISO 7637-2 pulse 1, 2a, 3a/b, and IEC 61000-4-5 surge waveforms without degradation |
| Fast response time | <5 ns turn-on enables protection against nanosecond-scale ESD and EFT events |
| Low dynamic impedance | Minimizes voltage overshoot during surge, preserving margin for downstream 24V-rated ICs |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and global environmental compliance mandates for automotive OEMs |
Applications
| Automotive Power Input Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: 24V battery rail in engine control units exposed to load dump and alternator transients. IC Role / Device Role / Timing Role: Primary clamping element placed upstream of DC-DC converters and microcontrollers. Use Value: Limits voltage to ≤39.1V during 600W surges, preventing latch-up or gate oxide damage in downstream 36V-tolerant ICs. | Use Scenario: 24V digital input channels on programmable logic controllers subject to field-wiring induced surges. IC Role / Device Role / Timing Role: Bidirectional shunt protector across input terminals to absorb coupled transients from relay coils or motor drives. Use Value: Symmetrical clamping ensures protection regardless of transient polarity, eliminating need for dual-unidirectional devices. |
| LED Driver Surge Suppression | Telecom Power Interface |
Use Scenario: Constant-current LED driver inputs in streetlight systems subjected to lightning-induced surges on long outdoor wiring. IC Role / Device Role / Timing Role: Front-end TVS placed between connector and input capacitor to divert surge energy before it reaches controller IC. Use Value: 175°C max junction temperature allows direct mounting near heat-generating LED drivers without derating. | Use Scenario: 24V/48V DC power interface in telecom remote radio units installed on cell towers. IC Role / Device Role / Timing Role: Secondary-level surge clamp after primary gas discharge tube (GDT), providing low-clamp precision. Use Value: Low leakage (<1 μA at 21.8V) prevents standby current drain in always-on network equipment. |
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 | 600W rating, 24V nominal, DO-214AA package, lower VBR min (21.6V) and higher VC (38.9V @ 17.3A) | Surface-mount alternative; requires PCB rework for through-hole replacement | Select when board space is constrained and SMT assembly is preferred |
| 1.5KE27CA | Same DO-204AC package, 1500W rating, 27V nominal, higher VC (43.0V @ 35A), no AEC-Q101 qualification | Higher-power legacy alternative; not automotive-qualified | Select only for non-automotive industrial use where 1500W surge margin is required |
Compared with SMBJ24CA and 1.5KE27CA, the P6KE27CAH uniquely combines AEC-Q101 qualification, DO-204AC through-hole compatibility, and precise 27V clamping - making it the optimal choice for automotive 24V system front-end protection where reliability, form factor, and voltage accuracy are jointly critical.
Availability
P6KE27CAH is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC manufacturing, and LED lighting system integration requiring stable component supply and long-term lifecycle assurance.
Supply support for P6KE27CAH 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, serving global automotive, industrial, and consumer markets since 1979.
The P6KE series belongs to TSC's AEC-Q101-qualified TVS portfolio, engineered specifically for robust transient immunity in harsh-environment 12V/24V/48V power systems - emphasizing reliability, thermal resilience, and standardized surge waveform compliance.
FAQ
What does the 'CA' suffix indicate in P6KE27CAH?
The 'CA' suffix in P6KE27CAH denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression in both forward and reverse directions. This is essential for protecting floating or AC-coupled lines where surge polarity is unpredictable. Unlike unidirectional variants (e.g., P6KE27A), the CA version has identical VBR, VC, and IPP ratings in either direction, and the P6KE27CAH implements this using a single die with center-tapped construction.
Is P6KE27CAH suitable for ISO 7637-2 load dump protection?
No - the P6KE27CAH is rated for 600W at 10/1000μs, which covers ISO 7637-2 pulses 1, 2a, 3a/b, and EFT, but not the high-energy load dump pulse (pulse 5a/b), which requires ≥1000W capability. For full load dump compliance, designers should pair the P6KE27CAH with a dedicated load dump suppressor or select a higher-power TVS such as the 1.5KE27CA. The P6KE27CAH remains appropriate as secondary protection downstream of load dump mitigation.
What is the meaning of the 'H' suffix in P6KE27CAH?
The 'H' suffix in P6KE27CAH indicates AEC-Q101 qualification - confirming that the device has passed the full suite of stress tests defined by the Automotive Electronics Council for discrete semiconductors, including HTGB, HTRB, TC, AC/DC, and ESD. This qualification applies specifically to the P6KE27CAH variant and is documented in Taiwan Semiconductor's AEC-Q101 certificate - distinguishing it from standard P6KE27CA parts not intended for automotive use.
How does P6KE27CAH compare to P6KE27A in terms of circuit protection?
The P6KE27CAH is bidirectional and symmetrical, while the P6KE27A is unidirectional with a cathode band marking. In a 24V DC system, P6KE27A protects only against reverse-polarity surges unless paired with another diode, whereas the P6KE27CAH provides complete protection with a single device. Additionally, the P6KE27CAH's AEC-Q101 qualification and tighter VBR tolerance (24.3–29.7V vs. 25.7–28.4V for P6KE27A) make it more suitable for automotive applications where reliability and specification consistency are mandatory.
Can P6KE27CAH be used in parallel for higher surge current handling?
No - paralleling P6KE27CAH devices is not recommended due to mismatch in dynamic impedance and VBR tolerances, which causes uneven current sharing and potential thermal runaway. For higher surge capability, select a single higher-rated device such as the 1.5KE27CA (1500W) or implement staged protection with a GDT followed by the P6KE27CAH. The P6KE27CAH is characterized and qualified as a standalone 600W solution; its performance assumes single-device implementation per protected line.
P6KE27CAH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- P6KE
- 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):
- 16.8A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KE27CAH FAQ
1.How can I place an order for P6KE27CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE27CAH 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 P6KE27CAH reliable?
The price and inventory of P6KE27CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE27CAH is usually 5 days.
3.What payment methods are accepted for P6KE27CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE27CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE27CAH?
P6KE27CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE27CAH 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 P6KE27CAH?
For technical support, including P6KE27CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE27CAH requirements.
6.How does Aetrix verify that P6KE27CAH is sourced from the original manufacturer or authorized distributors?
All P6KE27CAH 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 P6KE27CAH meets industry standards.
7.What is the process for return or replacement of P6KE27CAH?
All P6KE27CAH units undergo pre-shipment inspection (PSI). If there is an issue with P6KE27CAH, 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 P6KE27CAH part is unused and in its original packaging.
Return procedure for P6KE27CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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