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Taiwan Semiconductor Corporation P6KE47CA
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- Part No.:
- P6KE47CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE47CA.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:3,496
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Product details
Overview
P6KE47CA from Taiwan Semiconductor is a bidirectional 600W transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power lines and signal paths. It features a 47V nominal breakdown voltage, 38.1V stand-off voltage, 67.8V maximum clamping voltage at 9.2A peak surge current, and DO-204AC (DO-15) axial package - deployed in automotive lighting control modules, industrial PLC I/O protection, and USB/RS-485 interface transient hardening.
For engineers reviewing the P6KE47CA datasheet, P6KE47CA pinout, P6KE47CA application, or P6KE47CA equivalent, key selection criteria include clamping voltage margin vs. protected IC VDD, unidirectional/bidirectional configuration suitability for AC-coupled or floating circuits, junction temperature derating above 75°C, and AEC-Q101 qualification status for automotive-grade reliability validation.
Technical Context
The P6KE47CA operates as a silicon avalanche diode with bidirectional clamping symmetry, enabling protection of both polarities without external polarity management. Its 10/1000μs waveform surge rating of 600W and sub-5ns response time ensure effective suppression of EFT bursts and inductive switching transients before downstream components experience overvoltage stress.
Designed for surface-mount-compatible through-hole assembly, it uses a single-die DO-204AC package with pure tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance. The device exhibits a 0.101%/°C temperature coefficient of VBR, ensuring predictable voltage drift across its -55°C to +175°C operating junction range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Voltage | 47 V - defines rated clamping threshold for bidirectional surge events |
| Stand-off Voltage VWM | 38.1 V - maximum continuous reverse voltage before leakage exceeds 1 μA |
| Breakdown Voltage VBR | 42.3–51.7 V @ 1 mA - guaranteed avalanche initiation window under standardized test conditions |
| Clamping Voltage VC | 67.8 V @ 9.2 A - peak voltage seen by protected circuit during full 600W 10/1000μs surge |
| Peak Pulse Power | 600 W - energy-handling capacity per single non-repetitive transient event |
| Junction Temperature | -55°C to +175°C - enables operation in under-hood automotive and industrial motor drive environments |
| Package | DO-204AC (DO-15) - axial-leaded, UL 94V-0 molded case with cathode band marking |
Pinout & Package
DO-204AC (DO-15) axial package with two terminals: cathode-marked end (band) and anode end. No internal pins; leads are tinned copper alloy, 0.400g typical weight, 9.5mm lead length standard for thermal derating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reference terminal for bidirectional clamping | Marked end serves as polarity reference; symmetric conduction in both directions eliminates need for orientation-dependent placement |
| Anode (unmarked end) | Complementary terminal for bidirectional path | Completes low-impedance surge shunt path regardless of transient polarity; no functional distinction from cathode in CA configuration |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping architecture | Enables single-device protection of AC-coupled, floating, or differential signal lines without polarity constraints |
| AEC-Q101 qualified variant | P6KE47CA-H version meets automotive stress-test requirements for temperature cycling, HTRB, and mechanical shock |
| Low dynamic impedance | Ensures minimal voltage overshoot during fast-rising transients (<5 ns response), critical for protecting 3.3V/5V logic interfaces |
| UL 94V-0 flammability rating | Molding compound self-extinguishes within 10 seconds after flame removal, satisfying safety standards for enclosed industrial equipment |
| Halogen-free construction | Complies with IEC 61249-2-21, eliminating brominated flame retardants for RoHS-compliant manufacturing and end-of-life processing |
Applications
| Automotive LED Headlamp Drivers | Industrial RS-485 Communication Ports |
|---|---|
Use Scenario: Protecting LED driver ICs from load-dump spikes and alternator ripple in 12V/24V vehicle electrical systems. IC Role / Device Role / Timing Role: TVS diode placed across power input rails to clamp transients up to ±100V before reaching buck controller and gate drivers. Use Value: 67.8V clamping voltage provides 15V margin below typical 80V automotive load-dump limit, preventing latch-up or oxide rupture in 40V-rated MOSFETs. | Use Scenario: Shielding RS-485 transceivers from ESD events and cable-induced surges in factory automation networks. IC Role / Device Role / Timing Role: Bidirectional TVS connected between A/B differential lines and ground to suppress ±8kV contact ESD per IEC 61000-4-2. Use Value: Sub-5ns response ensures clamping activation before transceiver input stages exceed absolute maximum ratings, preserving data integrity during hot-plug events. |
| Smart Meter Power Supply Inputs | Medical Infusion Pump Motor Control |
Use Scenario: Safeguarding AC-DC converter primary-side rectifiers and controllers against lightning-induced surges on utility mains inputs. IC Role / Device Role / Timing Role: Placed across bridge rectifier output to absorb 6kV/3kA line-to-line surges defined in IEC 61000-4-5 Level 4. Use Value: 600W 10/1000μs rating handles full surge energy without degradation, maintaining long-term reliability in outdoor meter enclosures. | Use Scenario: Protecting H-bridge gate drivers from inductive kickback during stepper motor commutation in battery-powered infusion devices. IC Role / Device Role / Timing Role: Mounted across motor winding terminals to clamp flyback voltages generated during PWM switching transitions. Use Value: 175°C max junction temperature supports sealed, fanless enclosure designs where ambient temperatures reach 70°C continuously. |
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 47V nominal, 600W rating, but SMA package (surface-mount); lower thermal resistance (35°C/W vs. 50°C/W) | Requires PCB rework for SMT assembly; unsuitable for through-hole legacy designs | Select when board space is constrained and thermal performance is prioritized over manual assembly compatibility |
| Vishay 1.5KE47CA | Higher 1500W surge rating, same DO-204AC package; 70V clamping voltage at 21.5A | Over-spec for 600W use cases; larger footprint and higher cost per unit | Choose only when system-level surge testing requires >1000W margin or legacy 1.5KE footprint reuse is mandatory |
Compared with P6KE47CA, SMAJ47CA offers superior thermal performance in compact layouts but sacrifices through-hole serviceability, while 1.5KE47CA delivers excess surge headroom at the expense of cost and board area - making P6KE47CA the optimal balance of ruggedness, manufacturability, and cost for mid-tier industrial and automotive applications.
Availability
P6KE47CA is available at Aetrix Electronics and suitable for automotive lighting control, industrial communication port protection, and medical motor drive systems requiring stable component supply across multi-year production cycles.
Supply support for P6KE47CA 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 power management, protection, and signal conditioning devices since 1979.
The P6KE series belongs to TSC's transient voltage suppressor product line, engineered specifically for robust, cost-effective overvoltage protection in automotive, industrial, and consumer power electronics where AEC-Q101 compliance and high surge immunity are mandatory.
FAQ
What does the 'CA' suffix indicate in P6KE47CA?
The 'CA' suffix in P6KE47CA denotes a bidirectional configuration - meaning the device clamps transients of either polarity symmetrically across its terminals. Unlike unidirectional 'C' variants, P6KE47CA has no designated anode/cathode for circuit placement and is used where AC signals, floating grounds, or differential lines require polarity-agnostic protection without additional diode pairing.
Is P6KE47CA AEC-Q101 qualified?
Yes, the P6KE47CA-H variant is AEC-Q101 qualified per the manufacturer's ordering code documentation. Standard P6KE47CA is not automatically qualified; AEC-Q101 compliance requires explicit ordering with the 'H' suffix (e.g., P6KE47CAH). This qualification covers stress tests including temperature cycling, high-temperature reverse bias, and mechanical shock - essential for automotive under-hood and body-control module applications.
How does P6KE47CA compare to P6KE47A in clamping performance?
P6KE47CA has identical electrical specifications to P6KE47A except for polarity: P6KE47A is unidirectional (cathode-banded), while P6KE47CA is bidirectional (no functional polarity). Both share the same 42.3–51.7V VBR, 38.1V VWM, and 67.8V VC @ 9.2A. The choice depends solely on circuit topology - P6KE47CA is selected for AC, differential, or floating-node protection; P6KE47A for DC rail-to-ground clamping where polarity is fixed.
What is the maximum allowable mounting pad size for P6KE47CA to achieve rated 5W steady-state dissipation?
To achieve the rated 5W steady-state power dissipation at TA = 75°C, P6KE47CA must be mounted on 5 × 5 mm copper pads per terminal, as specified in the Absolute Maximum Ratings table. Smaller pads increase thermal resistance, reducing safe operating power - for example, 2 × 2 mm pads may limit continuous dissipation to ~2.5W at the same ambient temperature, requiring derating per Figure 2 in the datasheet.
Can P6KE47CA be used in parallel to increase surge current handling?
No, P6KE47CA should not be paralleled for increased surge current. Minor VBR tolerances (±10%) between units cause uneven current sharing, leading to thermal runaway in the lower-breakdown device. For higher surge capability, select a higher-rated part like 1.5KE47CA or implement staged protection with upstream current-limiting resistors and downstream TVS arrays - not parallel TVS diodes.
P6KE47CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- -
- 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):
- 9.3A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-15
P6KE47CA FAQ
1.How can I place an order for P6KE47CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE47CA 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 P6KE47CA reliable?
The price and inventory of P6KE47CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE47CA is usually 5 days.
3.What payment methods are accepted for P6KE47CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE47CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE47CA?
P6KE47CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE47CA 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 P6KE47CA?
For technical support, including P6KE47CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE47CA requirements.
6.How does Aetrix verify that P6KE47CA is sourced from the original manufacturer or authorized distributors?
All P6KE47CA 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 P6KE47CA meets industry standards.
7.What is the process for return or replacement of P6KE47CA?
All P6KE47CA units undergo pre-shipment inspection (PSI). If there is an issue with P6KE47CA, 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 P6KE47CA part is unused and in its original packaging.
Return procedure for P6KE47CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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