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Taiwan Semiconductor Corporation P6KE27AH
- Part No.:
- P6KE27AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE27AH.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,144
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Product details
Overview
P6KE27AH from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for primary-side overvoltage protection in automotive and industrial power rails. It features a 27V nominal breakdown voltage (VBR min/max = 24.3V/29.7V), 23.1V stand-off voltage (VWM), clamps to ≤37.5V at 16.8A peak surge current, and operates within -55°C to +175°C junction temperature range. It is AEC-Q101 qualified and housed in DO-204AC (DO-15) package.
For engineers reviewing the P6KE27AH datasheet, P6KE27AH pinout, P6KE27AH application, or P6KE27AH equivalent, this page delivers verified electrical parameters, mechanical packaging details, real-world protection use cases, and validated alternative parts - all aligned with Taiwan Semiconductor's P2203 specification revision and AEC-Q101 qualification status.
Technical Context
The P6KE27AH implements a silicon avalanche diode structure optimized for fast transient suppression on DC power lines. Its low dynamic impedance (<1Ω typical) and sub-nanosecond response time (<1.0ps from 0V to VBR) enable effective clamping of ESD and lightning-induced surges before downstream ICs are damaged.
It supports unidirectional operation only (cathode-banded polarity), with maximum reverse leakage <1μA at 23.1V and a temperature coefficient of VBR at 0.096%/°C. The device is rated for 100A non-repetitive forward surge (IFSM) and derates linearly above 25°C ambient per Fig.2 in the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 24.3V / 29.7V - Ensures reliable avalanche conduction onset across production lot and temperature range |
| VWM | 23.1V - Maximum continuous DC or RMS voltage the device blocks without significant leakage |
| VC @ IPP | 37.5V @ 16.8A - Clamped voltage during 10/1000μs surge; defines worst-case stress on protected circuit |
| PPK | 600W - Peak pulse power handling capability under standardized 10/1000μs waveform |
| IR @ VWM | <1μA - Ultra-low leakage preserves battery life and signal integrity in always-on systems |
| TJ max | +175°C - Enables placement near hot components (e.g., power MOSFETs, inductors) without thermal derating loss |
| AEC-Q101 | Qualified - Validated for automotive underhood applications per stress test requirements (HTOL, TCT, etc.) |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, molded epoxy case with cathode band marking; lead finish is pure tin, solderable per J-STD-002; meets UL 94V-0 and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground-reference terminal | Connected to system ground or low-side return path; carries full surge current during clamping |
| Cathode | Protected-line terminal | Connected to line being protected (e.g., 24V rail); avalanche conduction occurs from cathode to anode when VLINE exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive underhood environments including thermal cycling, humidity, and high-temp bias life testing |
| 600W surge rating (10/1000μs) | Withstands ISO 7637-2 Pulse 1/2a/3a transients and IEC 61000-4-5 Level 3 surges without degradation |
| Clamping voltage ≤37.5V | Protects 3.3V–24V logic and MCU I/O stages by limiting fault voltage below damage thresholds of common interface ICs |
| Response time <1.0ps | Engages before ESD events (IEC 61000-4-2) propagate beyond PCB trace lengths, minimizing coupled noise |
| Low leakage <1μA @ 23.1V | Enables use in low-power wake-up circuits and battery-backed systems without measurable standby drain |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: 24V battery-supplied ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power input, placed upstream of DC-DC converters and LDOs. Use Value: Limits transient voltage to ≤37.5V, preventing latch-up or gate oxide rupture in downstream PMICs and microcontrollers. |
Use Scenario: 24V digital input modules receiving signals from field sensors subject to inductive kickback and EFT bursts. IC Role / Device Role / Timing Role: Front-end transient suppressor on isolated input channel, paired with optocoupler or digital isolator. Use Value: Absorbs >99% of 1kV/500Hz EFT energy (IEC 61000-4-4) before it reaches signal conditioning circuitry. |
| LED Driver Overvoltage Clamp | Telecom Power Interface Protection |
Use Scenario: Constant-current LED drivers powered from 24V/48V supplies in streetlight or signage systems. IC Role / Device Role / Timing Role: Standoff protector across driver input terminals to prevent catastrophic failure during surge events. Use Value: Maintains VWM = 23.1V margin above nominal 24V rail while clamping surges to safe levels for MOSFET gate drivers. |
Use Scenario: 48V PoE-powered equipment (e.g., IP cameras, wireless APs) connected to outdoor cabling. IC Role / Device Role / Timing Role: First-stage TVS on DC input before secondary protection (e.g., GDT + MOV cascade). Use Value: Provides precise 27V clamping threshold compatible with IEEE 802.3bt 4-pair PoE voltage limits and surge coordination. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ24A | Same DO-214AC package; lower PPK = 400W; VBR = 26.7–29.5V; VC = 38.9V @ 10.3A | Not AEC-Q101 qualified; suited for commercial-grade industrial use only | Select when AEC-Q101 is not required and board space allows SMA footprint |
| ON Semiconductor 1.5KE27A | Higher PPK = 1500W; DO-201AD package; VBR = 25.7–28.4V; VC = 37.5V @ 40A; same VWM | Larger footprint and higher surge capacity; better for legacy 1.5kW designs with existing layout | Select when higher surge margin is needed and DO-201AD mounting is acceptable |
Compared with SMAJ24A and 1.5KE27A, the P6KE27AH uniquely combines AEC-Q101 qualification, DO-15 compactness, and precise 37.5V clamping-making it optimal for space-constrained automotive modules where reliability certification and thermal robustness are mandatory.
Availability
P6KE27AH is available at Aetrix Electronics and suitable for automotive control units, industrial programmable logic controllers, LED lighting drivers, and telecom power interfaces requiring stable component supply with full AEC-Q101 compliance and traceable sourcing.
Supply support for P6KE27AH 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, specializing in TVS diodes, rectifiers, and power MOSFETs for automotive and industrial markets.
The P6KE series was developed specifically for AEC-Q101-compliant transient protection in harsh-environment 12V/24V/48V systems, emphasizing low clamping voltage, high surge robustness, and long-term reliability under thermal cycling.
FAQ
What does the "H" suffix in P6KE27AH signify?
The "H" suffix in P6KE27AH indicates full AEC-Q101 qualification per the manufacturer's P2203 specification revision. This includes passing high-temperature operating life (HTOL), temperature cycling (TCT), and unbiased highly accelerated stress test (UHAST) - confirming suitability for automotive underhood applications. Non-H variants like P6KE27A lack this certification.
Can P6KE27AH be used in bidirectional configurations?
No, P6KE27AH is unidirectional only, as confirmed by its cathode-band marking, single-die construction, and electrical specifications limited to VBR and VC in one polarity. For bidirectional protection, Taiwan Semiconductor offers P6KE27CA (with "CA" suffix), which uses dual-die anti-series configuration and has symmetric breakdown in both directions.
What is the maximum allowable PCB trace length between P6KE27AH and the protected IC?
To maintain sub-nanosecond response effectiveness, PCB trace inductance must be minimized: total loop inductance should remain ≤10nH. For P6KE27AH, this typically requires trace lengths under 15mm with ground-plane coupling - verified via TSC's application note AN-1022. Longer traces degrade clamping performance by delaying effective voltage limiting.
How does P6KE27AH's 37.5V clamping voltage compare to system-level surge standards?
P6KE27AH's VC = 37.5V @ 16.8A satisfies IEC 61000-4-5 Level 3 (1kV/2Ω) and ISO 7637-2 Pulse 1 (−150V/50Ω) requirements for 24V systems. Its clamping headroom (37.5V vs. typical 40V absolute max for 24V-rated ICs) provides 2.5V safety margin against cumulative tolerance stack-up in production designs.
Is P6KE27AH compatible with lead-free reflow soldering profiles?
Yes, P6KE27AH supports standard IPC/JEDEC J-STD-020D lead-free reflow profiles, with peak temperature up to 260°C for ≤30 seconds. Its pure tin-plated leads and UL 94V-0 epoxy molding compound are fully compliant; no special prebake or moisture sensitivity level (MSL) handling is required.
P6KE27AH 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:
- 1
- Bidirectional Channels:
- -
- 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)
P6KE27AH FAQ
1.How can I place an order for P6KE27AH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE27AH 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 P6KE27AH reliable?
The price and inventory of P6KE27AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE27AH is usually 5 days.
3.What payment methods are accepted for P6KE27AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE27AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE27AH?
P6KE27AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE27AH 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 P6KE27AH?
For technical support, including P6KE27AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE27AH requirements.
6.How does Aetrix verify that P6KE27AH is sourced from the original manufacturer or authorized distributors?
All P6KE27AH 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 P6KE27AH meets industry standards.
7.What is the process for return or replacement of P6KE27AH?
All P6KE27AH units undergo pre-shipment inspection (PSI). If there is an issue with P6KE27AH, 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 P6KE27AH part is unused and in its original packaging.
Return procedure for P6KE27AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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