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Taiwan Semiconductor Corporation P6KE47AH
- Part No.:
- P6KE47AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE47AH.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,635
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Product details
Overview
P6KE47AH from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for primary-side overvoltage clamping in automotive and industrial power rails. It features a 47V nominal breakdown voltage (VBR min/max: 44.7V–49.4V), 40.2V stand-off voltage (VWM), 64.8V maximum clamping voltage at 9.7A peak surge current, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the P6KE47AH datasheet, P6KE47AH pinout, P6KE47AH application, or P6KE47AH equivalent, this device is selected for high-energy ESD and load-dump protection where fast response (<1.0ps), low dynamic impedance, and stable junction temperature up to +175°C are required in DO-204AC (DO-15) through-hole packaging.
Technical Context
The P6KE47AH operates as a unidirectional avalanche diode with precise VBR tolerance (±5% for "A" grade), enabling predictable clamping onset during transients such as ISO 7637-2 pulse 1/2a/5a and IEC 61000-4-2 ESD events. Its 10/1000μs waveform rating of 600W supports robust protection against inductive switching surges and electrical fast transients (EFT).
Thermal design is enabled by its 175°C maximum junction temperature and derating curve per Fig.2, while its <1μA reverse leakage at 40.2V ensures minimal standby power loss in always-on circuits. Polarity is marked by cathode band; lead finish is pure tin per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 44.7V / 49.4V - defines guaranteed clamping onset window under 1mA test current |
| VWM | 40.2V - maximum continuous reverse voltage before significant leakage begins |
| VC @ IPP | 64.8V @ 9.7A - peak clamped voltage during 10/1000μs surge, limiting downstream stress |
| PPK | 600W - non-repetitive surge power handling capability per standard waveform |
| TJ max | +175°C - enables operation in under-hood automotive environments and high-ambient industrial settings |
| IR @ VWM | <1μA - ensures negligible quiescent current draw in battery-backed or low-power systems |
| Package | DO-204AC (DO-15) - industry-standard axial-leaded package with 0.400g mass and UL 94V-0 molding |
Pinout & Package
DO-204AC (DO-15) axial-leaded package with cathode band marking polarity. Leads are pure tin plated, solderable per J-STD-002, and meet JESD 201 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 input | Connected to protected rail (e.g., 12V/24V supply); voltage referenced to anode during transient suppression |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics per stress test requirements |
| Clamping voltage ≤64.8V | Ensures downstream ICs rated for ≤65V absolute maximum survive 9.7A transients without damage |
| Response time <1.0ps | Enables suppression before sensitive logic or analog circuitry experiences overvoltage stress |
| UL Recognized #E-326243 | Confirms safety compliance for end-equipment certification in North America |
| Halogen-free (IEC 61249-2-21) | Meets RoHS and environmental compliance mandates for global OEM production |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting 12V/24V supply lines in engine control modules from ISO 7637-2 load dump and jump-start transients. IC Role / Device Role / Timing Role: Primary clamping element placed directly across power rail and ground, activated within picoseconds of overvoltage onset. Use Value: Limits rail voltage to ≤64.8V during 600W surges, preventing latch-up or permanent damage to MCU, CAN transceivers, and sensor interfaces. | Use Scenario: Safeguarding digital input channels on programmable logic controllers exposed to field-wiring inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS connected between input signal line and common ground to shunt surge energy away from optocoupler or Schmitt trigger inputs. Use Value: Withstands repeated 10/1000μs surges up to 9.7A while maintaining <1μA leakage at 40.2V, preserving signal integrity and input threshold accuracy. |
| LED Driver Overvoltage Clamp | Medical Equipment ESD Shielding |
Use Scenario: Clamping transient spikes on constant-current LED driver outputs caused by cable disconnect or hot-plug events. IC Role / Device Role / Timing Role: Mounted across output terminals to clamp voltage excursions above 47V, protecting LED strings and driver FETs. Use Value: 64.8V clamping voltage ensures LEDs with 50V Vf max remain within safe operating area during 600W surges. | Use Scenario: Providing secondary-level ESD protection on front-panel connectors of diagnostic imaging equipment per IEC 61000-4-2 Level 4. IC Role / Device Role / Timing Role: Placed at connector entry point to divert 15kV contact discharge energy before reaching internal analog front-end or microcontroller. Use Value: Sub-1.0ps response captures ESD event rise time, and AEC-Q101 qualification supports long-term reliability in regulated medical hardware. |
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 SMAJ47A | Same DO-214AC (SMA) package; 600W rating; VBR 44.7–49.4V; slightly higher VC (67.0V @ 9.7A) | Surface-mount only; requires PCB rework vs. P6KE47AH's through-hole DO-15 | Select for space-constrained SMT designs where thermal pad access supports higher power dissipation |
| ON Semiconductor 1.5KE47A | Higher PPK (1500W); same VBR/VWM/VC specs; DO-201AD package; larger footprint and weight | Used where legacy 1.5kW surge margin is mandated, e.g., heavy-duty industrial motor drives | Select when system-level surge testing exceeds 600W but board layout allows larger axial package |
Compared with SMAJ47A and 1.5KE47A, the P6KE47AH offers AEC-Q101 qualification and DO-15 through-hole compatibility-critical for automotive harness-connected modules and repairable industrial assemblies-while delivering identical electrical clamping performance at lower cost and smaller volume than 1.5KE variants.
Availability
P6KE47AH is available at Aetrix Electronics and suitable for automotive power rail protection, industrial PLC input conditioning, and LED driver overvoltage clamping requiring stable component supply and long-lifecycle support.
Supply support for P6KE47AH 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 belongs to TSC's automotive-qualified transient suppression portfolio, engineered specifically for robust, high-reliability overvoltage protection in harsh environments including engine bays, factory floors, and outdoor infrastructure.
FAQ
What is the clamping voltage of P6KE47AH and how is it measured?
The P6KE47AH has a maximum clamping voltage (VC) of 64.8V at 9.7A peak pulse current (IPP), measured under the standardized 10/1000μs double-exponential surge waveform. This value represents the highest voltage that appears across the P6KE47AH terminals during a worst-case transient, ensuring downstream components see no more than 64.8V even under full-rated surge conditions.
Is P6KE47AH suitable for bidirectional transient protection?
No, P6KE47AH is a unidirectional TVS diode intended for DC power line protection with defined polarity (cathode band marking). For bidirectional AC or data-line protection, use the P6KE47CA variant, which provides symmetrical clamping in both directions and is explicitly designated for bipolar applications in the datasheet.
Does P6KE47AH require a heatsink in typical applications?
No, P6KE47AH does not require an external heatsink in standard pulse-duty applications because its 600W rating applies to non-repetitive surges, and steady-state power dissipation (PD) is only 5W at 75°C ambient. Thermal management relies on PCB copper pads (5×5 mm per lead) per JEDEC standards-not heatsinks-making it suitable for compact, cost-sensitive layouts.
What is the meaning of the "H" suffix in P6KE47AH?
Per Taiwan Semiconductor's ordering information, the "H" suffix in P6KE47AH indicates AEC-Q101 qualification-confirming the device has passed stress tests for automotive use including temperature cycling, humidity bias HAST, and mechanical shock. This distinguishes it from standard P6KE47A parts and validates suitability for under-hood and chassis-mounted electronics.
How does P6KE47AH compare to P6KE47A in terms of electrical performance?
P6KE47AH and P6KE47A share identical electrical specifications-including VBR (44.7–49.4V), VWM (40.2V), VC (64.8V), and PPK (600W)-but differ only in qualification status: P6KE47AH is AEC-Q101 certified, whereas P6KE47A is not. No electrical parameter deviation exists between the two; the "H" denotes enhanced reliability validation, not performance enhancement.
P6KE47AH 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):
- 40.2V
- Voltage - Breakdown (Min):
- 44.7V
- Voltage - Clamping (Max) @ Ipp:
- 64.8V
- Current - Peak Pulse (10/1000µs):
- 9.7A
- 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)
P6KE47AH FAQ
1.How can I place an order for P6KE47AH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE47AH 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 P6KE47AH reliable?
The price and inventory of P6KE47AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE47AH is usually 5 days.
3.What payment methods are accepted for P6KE47AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE47AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE47AH?
P6KE47AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE47AH 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 P6KE47AH?
For technical support, including P6KE47AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE47AH requirements.
6.How does Aetrix verify that P6KE47AH is sourced from the original manufacturer or authorized distributors?
All P6KE47AH 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 P6KE47AH meets industry standards.
7.What is the process for return or replacement of P6KE47AH?
All P6KE47AH units undergo pre-shipment inspection (PSI). If there is an issue with P6KE47AH, 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 P6KE47AH part is unused and in its original packaging.
Return procedure for P6KE47AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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