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Taiwan Semiconductor Corporation P6KE47CAH
- Part No.:
- P6KE47CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE47CAH.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,555
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Product details
Overview
P6KE47CAH 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 47V nominal breakdown voltage (VBR min/max: 42.3V–51.7V), 38.1V stand-off voltage (VWM), clamps to ≤67.8V at 9.2A peak surge current, and uses DO-204AC (DO-15) package with AEC-Q101 qualification for under-hood electronics.
For engineers reviewing the P6KE47CAH datasheet, P6KE47CAH pinout, P6KE47CAH application, or P6KE47CAH equivalent, key selection criteria include bidirectional clamping performance under 10/1000μs transients, low dynamic impedance for fast response (<5.0ns), junction temperature rating up to +175°C, and compliance with AEC-Q101 for automotive-grade reliability.
Technical Context
The P6KE47CAH operates as a silicon avalanche diode configured in bidirectional mode, enabling symmetrical clamping of positive and negative transients without polarity sensitivity. Its 600W peak pulse power rating is defined per 10/1000μs waveform, with thermal derating above 25°C ambient per published curves.
It exhibits low leakage (<1μA at VWM = 38.1V), a temperature coefficient of VBR at 0.101%/°C, and junction capacitance typically <100pF at VR = 0V (1MHz), making it suitable for protecting medium-speed signal lines and DC power inputs against EFT and lightning-induced surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 38.1 V - Maximum continuous reverse operating voltage before significant leakage begins |
| VBR (min/max) | 42.3 V / 51.7 V - Breakdown occurs within this range at 1 mA test current; defines clamping onset threshold |
| VC @ IPP | 67.8 V @ 9.2 A - Clamped voltage during 10/1000μs surge; limits downstream IC stress |
| PPK | 600 W - Peak non-repetitive surge power handling capability per standard waveform |
| TJ max | +175 °C - Maximum junction temperature; supports operation in high-ambient under-hood environments |
| Package | DO-204AC (DO-15) - Industry-standard axial-leaded package with tin-plated leads, UL 94V-0 molding |
| AEC-Q101 | Qualified - Validated for automotive applications including engine control, body electronics, and infotainment power rails |
Pinout & Package
DO-204AC (DO-15) axial-leaded package with cathode band marking for unidirectional variants; P6KE47CAH is bidirectional and has no polarity marking - both terminals are functionally identical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | Either terminal accepts positive or negative transient; no PCB orientation dependency |
| Lead 1 / Lead 2 | Current path to PCB copper pour | Leads soldered to 5×5 mm copper pads per JEDEC; thermal dissipation critical for surge duty cycle |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating DC rails without polarity concerns |
| Fast response time | <5.0 ns rise-to-VBR ensures suppression before sensitive ICs experience overvoltage damage |
| Low dynamic impedance | Minimizes voltage overshoot during high-di/dt events by maintaining stable clamping under surge |
| AEC-Q101 qualification | Validated for automotive temperature cycling, humidity, mechanical shock, and long-term reliability |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive for environmentally constrained designs |
Applications
| Automotive Power Rail Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 12V/24V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role: Primary surge shunt device placed at power entry before LDOs or DC-DC converters. Use Value: Limits transient voltage to ≤67.8V, preventing latch-up or gate oxide rupture in downstream PMICs and microcontrollers. | Use Scenario: Shielding 24V digital input modules from inductive kickback caused by solenoid/relay switching. IC Role / Device Role: Front-end transient clamp on field-side signal conditioning circuitry. Use Value: Absorbs 600W surges without degradation, ensuring >100,000 switching cycles in factory automation systems. |
| LED Driver Overvoltage Protection | Smart Meter AC Mains Interface |
Use Scenario: Safeguarding constant-current LED drivers against line surges and ESD during installation. IC Role / Device Role: Parallel-connected TVS across driver output or input bus. Use Value: Clamps 10/1000μs surges to 67.8V while maintaining <1μA leakage at 38.1V, preserving driver efficiency. | Use Scenario: Protecting metering SoCs and isolation amplifiers from fast transients coupled via AC mains. IC Role / Device Role: Secondary-level surge protector after MOV primary stage in Class I/II surge protection. Use Value: Provides precise 47V clamping with low capacitance, avoiding signal distortion on metrology ADC inputs. |
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 SMAJ47CA | Same DO-214AC package; slightly higher VBR min (43.0V) and VC (69.4V @ 9.0A); not AEC-Q101 qualified | Targeted at commercial/industrial use; lacks automotive qualification documentation | Select when AEC-Q101 is not required and DO-214AC SMT layout is preferred |
| ON Semiconductor 1.5KE47CA | Higher PPK (1500W); larger DO-201AE package; same VWM/VBR/VC specs; AEC-Q101 available in select variants | Used where higher single-pulse energy margin is needed, e.g., heavy-duty motor drives | Select when system-level surge testing exceeds 600W requirements or legacy DO-201AE footprint exists |
Compared with SMAJ47CA and 1.5KE47CA, the P6KE47CAH offers AEC-Q101 validation in the compact DO-204AC through-hole package, balancing automotive reliability, board-space efficiency, and 600W surge capacity without over-engineering for lower-energy threats.
Availability
P6KE47CAH is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC I/O protection, and smart lighting power supply development requiring stable component supply and long-term lifecycle assurance.
Supply support for P6KE47CAH 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 automotive environments-emphasizing reliability, thermal stability, and consistent clamping performance across temperature.
FAQ
What is the clamping voltage of P6KE47CAH under a 10/1000μs surge?
The P6KE47CAH clamps to a maximum of 67.8 V when subjected to its rated peak surge current of 9.2 A under the standardized 10/1000μs waveform. This value is measured at the device terminals and represents the upper limit of voltage seen by downstream circuitry during transient events, ensuring safe operation of 48V-tolerant ICs and interfaces.
Is P6KE47CAH suitable for automotive applications?
Yes, P6KE47CAH is AEC-Q101 qualified, confirming its suitability for automotive applications including engine control units, body control modules, and infotainment power supplies. Its −55°C to +175°C junction temperature range, robust surge endurance, and validated reliability testing meet stringent automotive environmental and lifetime requirements.
What does the "CA" suffix indicate in P6KE47CAH?
The "CA" suffix in P6KE47CAH denotes bidirectional configuration - meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional "A" variants, P6KE47CAH has no cathode marking and functions identically regardless of terminal orientation on the PCB.
How does P6KE47CAH differ from the standard P6KE47CH?
P6KE47CAH includes the "A" grade tolerance (tighter VBR spread: 44.7–49.4 V vs. 42.3–51.7 V for P6KE47CH) and the "H" AEC-Q101 qualification. The "A" variant offers improved consistency in breakdown voltage, reducing design margin uncertainty, while the "H" suffix confirms full automotive qualification - both enhancements present in P6KE47CAH.
Can P6KE47CAH be used in AC line protection circuits?
Yes, P6KE47CAH is appropriate for AC line protection where peak voltages remain below its 38.1 V stand-off rating - such as secondary-side 24VAC control circuits or isolated DC bias rails. Its bidirectional nature allows direct placement across AC nodes, but it is not rated for primary-side 120/230VAC direct connection due to insufficient VWM.
P6KE47CAH 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):
- 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)
P6KE47CAH FAQ
1.How can I place an order for P6KE47CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE47CAH 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 P6KE47CAH reliable?
The price and inventory of P6KE47CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE47CAH is usually 5 days.
3.What payment methods are accepted for P6KE47CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE47CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE47CAH?
P6KE47CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE47CAH 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 P6KE47CAH?
For technical support, including P6KE47CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE47CAH requirements.
6.How does Aetrix verify that P6KE47CAH is sourced from the original manufacturer or authorized distributors?
All P6KE47CAH 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 P6KE47CAH meets industry standards.
7.What is the process for return or replacement of P6KE47CAH?
All P6KE47CAH units undergo pre-shipment inspection (PSI). If there is an issue with P6KE47CAH, 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 P6KE47CAH part is unused and in its original packaging.
Return procedure for P6KE47CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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