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Taiwan Semiconductor Corporation P6KE20AH
- Part No.:
- P6KE20AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE20AH.pdf
- Description:
- TVS DIODE 17.1VWM 27.7VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,787
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Product details
Overview
P6KE20AH from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 20V nominal breakdown voltage (VBR = 19.0–21.0 V at 1 mA), 17.1 V maximum stand-off voltage (VWM), 27.7 V clamping voltage at 22 A peak surge current, and operates within –55°C to +175°C junction temperature range in automotive-grade AEC-Q101-qualified DO-204AC (DO-15) package.
For engineers reviewing the P6KE20AH datasheet, P6KE20AH pinout, P6KE20AH application, or P6KE20AH equivalent, this device is selected for robust ESD/inductive-spike suppression in automotive body control modules, industrial sensor interfaces, and 24V DC input protection where fast clamping (<1 ps response), low leakage (<1 µA @ 17.1 V), and high surge immunity (600W @ 10/1000 µs) are critical.
Technical Context
The P6KE20AH implements a silicon avalanche diode structure optimized for unidirectional clamping with low dynamic impedance and sub-nanosecond response to transients. Its 175°C maximum junction temperature and AEC-Q101 qualification confirm suitability for under-hood automotive environments subject to thermal cycling and vibration.
It delivers 27.7 V clamping at 22 A peak surge current (10/1000 µs waveform), with <1 µA reverse leakage above 10 V and a 0.090 %/°C temperature coefficient of VBR, ensuring stable threshold behavior across operating temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 19.0 V / 21.0 V at 1 mA - defines precise avalanche initiation window for repeatable clamping onset |
| VWM | 17.1 V - maximum continuous DC or RMS voltage the device blocks without significant leakage |
| VC @ IPP | 27.7 V at 22 A - peak clamped voltage during 600W transient, limiting downstream stress |
| IPP | 22 A - maximum non-repetitive surge current it safely clamps per 10/1000 µs waveform |
| PPK | 600 W - peak pulse power handling capacity, derated linearly above 25°C ambient |
| TJ max | +175°C - enables operation in high-temp automotive engine compartments and industrial enclosures |
| AEC-Q101 | Qualified - validated for automotive reliability including temperature cycling, HTRB, and mechanical shock |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, epoxy-molded case with cathode band marking. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to circuit ground or lowest potential node; forms clamping path with cathode |
| Cathode | High-side transient sink | Connected to protected line (e.g., 24V rail); conducts surge current to ground when VAK > VBR |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional clamping architecture | Enables precise DC rail protection without bidirectional leakage or dual-threshold ambiguity |
| Sub-1 ps response time (0 → VBR) | Clamps ESD events before sensitive ICs experience latch-up or gate oxide damage |
| 600W peak pulse power (10/1000 µs) | Withstands automotive load-dump surges and inductive kickback in 12V/24V systems |
| AEC-Q101 qualification | Validated for automotive electronics per stress test requirements including HTGB and TCT |
| UL 94V-0 flammability rating | Molding compound resists ignition and flame propagation in enclosed industrial housings |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LIN bus and power inputs in BCM against battery load dump and alternator ripple. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 12V/24V supply rails and LIN transceiver VCC pins. Use Value: Limits transient voltage to ≤27.7 V, preventing reset or damage to microcontrollers and transceivers during ISO 7637-2 Pulse 5a events. | Use Scenario: Safeguarding 4–20 mA analog sensor outputs and RS-485 communication lines from EFT and surge coupling. IC Role / Device Role / Timing Role: Secondary-level TVS placed at connector entry point before signal conditioning ICs. Use Value: Clamps fast transients (IEC 61000-4-4 Level 4) with <1 ps response, preserving signal integrity and ADC accuracy. |
| DC Power Supply Input Stage | LED Driver Overvoltage Protection |
Use Scenario: Input protection for switching DC/DC converters in telecom and industrial power supplies. IC Role / Device Role / Timing Role: First-line defense against AC line surges coupled into DC input via Y-capacitors or transformer leakage. Use Value: Absorbs 600W pulses without degradation, maintaining converter uptime and reducing need for redundant filtering. | Use Scenario: Preventing catastrophic failure of constant-current LED drivers due to inductive turn-off spikes from long cable runs. IC Role / Device Role / Timing Role: Parallel-connected TVS across driver output terminals to shunt inductive energy. Use Value: Clamps 27.7 V peak during 22 A surge, protecting MOSFETs and current-sense resistors from overvoltage stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ20A | Same 20V VBR range but SMA package (surface-mount), lower PPK = 400W | Preferred for space-constrained PCBs; not AEC-Q101 qualified | Select when board area is limited and automotive qualification is not required |
| 1.5KE20A | Same DO-15 package and 600W rating, but no AEC-Q101 qualification; higher VC = 29.1 V | General industrial use only; lacks automotive reliability validation | Select for cost-sensitive non-automotive designs where 1.4 V higher clamping is acceptable |
Compared with SMAJ20A and 1.5KE20A, the P6KE20AH uniquely combines AEC-Q101 qualification, DO-15 through-hole robustness, and 27.7 V clamping-making it the preferred choice for automotive and high-reliability industrial applications demanding verified surge resilience and thermal stability.
Availability
P6KE20AH is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and DC power supply input protection requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for P6KE20AH 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 thyristors, with global distribution and ISO/TS 16949-certified production.
The P6KE series belongs to TSC's AEC-Q101-qualified transient suppression portfolio, engineered specifically for automotive and harsh-environment industrial applications demanding high-energy surge immunity and long-term reliability.
FAQ
What is the clamping voltage of P6KE20AH and how is it measured?
The P6KE20AH has a maximum clamping voltage (VC) of 27.7 V at 22 A peak pulse current (IPP) using the standard 10/1000 µs double-exponential surge waveform. This value is measured per ANSI/IEEE C62.35 and represents the upper limit of voltage seen by downstream circuitry during worst-case transient events. The P6KE20AH maintains this clamping performance across its full operating temperature range.
Is P6KE20AH suitable for bidirectional signal line protection?
No, the P6KE20AH is a unidirectional TVS diode intended for DC rail protection only. Its cathode-anode polarity is fixed, and it does not provide symmetrical clamping in both directions. For bidirectional applications such as RS-485 or USB data lines, a bipolar variant like P6KE20CA must be used instead of the P6KE20AH.
Does P6KE20AH require a heatsink in typical applications?
No, the P6KE20AH is rated for 5 W steady-state power dissipation at 75°C ambient when mounted on 5 × 5 mm copper pads per lead, and its 600W surge rating applies to non-repetitive events. In normal operation with low leakage (<1 µA at 17.1 V), self-heating is negligible-no heatsink is needed unless subjected to frequent repetitive surges exceeding derating limits.
How does the AEC-Q101 qualification of P6KE20AH differ from standard industrial TVS diodes?
The AEC-Q101 qualification of P6KE20AH includes rigorous stress testing beyond JEDEC standards-such as 1000-hour high-temperature reverse bias (HTRB), temperature cycling (–55°C to +150°C), and mechanical shock-specifically validating reliability for automotive under-hood use. Standard industrial TVS diodes like 1.5KE20A lack this validation and are not approved for safety-critical vehicle subsystems.
What is the meaning of the "H" suffix in P6KE20AH?
The "H" suffix in P6KE20AH explicitly denotes AEC-Q101 qualification per Taiwan Semiconductor's ordering nomenclature. It distinguishes this automotive-grade version from standard P6KE20A parts, confirming full compliance with the AEC-Q101 stress test schedule-including HTGB, TCT, and bond wire pull tests-required for deployment in automotive electronic control units.
P6KE20AH 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):
- 17.1V
- Voltage - Breakdown (Min):
- 19V
- Voltage - Clamping (Max) @ Ipp:
- 27.7V
- Current - Peak Pulse (10/1000µs):
- 22A
- 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)
P6KE20AH FAQ
1.How can I place an order for P6KE20AH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE20AH 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 P6KE20AH reliable?
The price and inventory of P6KE20AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE20AH is usually 5 days.
3.What payment methods are accepted for P6KE20AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE20AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE20AH?
P6KE20AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE20AH 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 P6KE20AH?
For technical support, including P6KE20AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE20AH requirements.
6.How does Aetrix verify that P6KE20AH is sourced from the original manufacturer or authorized distributors?
All P6KE20AH 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 P6KE20AH meets industry standards.
7.What is the process for return or replacement of P6KE20AH?
All P6KE20AH units undergo pre-shipment inspection (PSI). If there is an issue with P6KE20AH, 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 P6KE20AH part is unused and in its original packaging.
Return procedure for P6KE20AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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