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onsemi P6KE47ARL
- Part No.:
- P6KE47ARL
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- T-18, Axial
- Datasheet:
-
P6KE47ARL.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:8,783
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Product details
Overview
P6KE47ARL from ON Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in axial-leaded Surmetic-40 package, designed to protect sensitive electronics against high-energy transients. It features a 40.2 V working peak reverse voltage (VRWM), 64.8 V clamping voltage (VC) at 9.3 A peak pulse current (IPP), and 600 W peak power dissipation for 1 ms pulses - ideal for safeguarding power supply inputs and communication line interfaces.
For engineers reviewing the P6KE47ARL datasheet, pinout, applications, or equivalent options, key selection criteria include VRWM margin over operating voltage, clamping voltage vs. device withstand rating, surge current capability under IEC 61000-4-5 waveforms, and UL 497B recognition for isolated loop protection.
Technical Context
The P6KE47ARL operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its breakdown threshold (VBR = 44.7–49.4 V @ IT = 1 mA). Its fast response time (<1 ns) enables suppression of ESD and lightning-induced surges before downstream ICs are damaged.
Thermal design relies on junction-to-lead resistance (RJL = 20 °C/W) and derated power handling above 50°C ambient; steady-state dissipation is limited to 5.0 W at TL ≤ 25°C with 3/8″ lead length, dropping to 50 mW/°C above TL = 50°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 40.2 V - maximum continuous reverse operating voltage before clamping begins |
| VC @ IPP | 64.8 V @ 9.3 A - clamped voltage during 1 ms 8.3 ms half-sine surge, defining worst-case stress on protected circuit |
| PPK | 600 W - peak pulse power handling per non-repetitive 1 ms surge per Figure 4 |
| IR @ VRWM | <5 µA - leakage current at rated reverse voltage, ensuring minimal standby power loss |
| VBR @ IT | 44.7–49.4 V @ 1 mA - verified breakdown range confirming consistent avalanche turn-on behavior |
| Response Time | <1 ns - time from transient onset to clamping initiation, critical for sub-nanosecond ESD events |
| UL Recognition | UL 497B certified - validated for isolated loop circuit protection including strike voltage, endurance, and dielectric tests |
Pinout & Package
Surmetic-40 axial-leaded plastic package (Case 017AA), cathode indicated by polarity band; leads are solderable, corrosion-resistant, with max solder temperature 260°C at 1/16″ from case for 10 seconds.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or low-side reference in unidirectional protection configuration |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., DC input, RS-485 bus); polarity band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 (4 kV/2 Ω) surge without degradation when properly mounted |
| Clamping ratio (VC/VBR) | ~1.45 - tight ratio ensures low overvoltage stress while maintaining robust surge margin |
| ESD rating Class 3 (>16 kV HBM) | Meets IEC 61000-4-2 Level 4 for system-level ESD immunity without additional front-end filtering |
| Low leakage <5 µA | Prevents measurable current draw in battery-powered or high-impedance sensing circuits |
| UL 497B certification | Validates suitability for telecom and industrial isolated interface protection per safety-critical standards |
Applications
| Power Supply Input Protection | RS-485/422 Data Line Protection |
|---|---|
Use Scenario: 48 V DC industrial power rail exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and chassis ground to clamp positive-going surges. Use Value: Clamps transients to ≤64.8 V, protecting downstream DC-DC converters rated for 75 V absolute maximum input. | Use Scenario: Industrial fieldbus node with long cable runs subject to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Paired P6KE47ARL devices (one per line) referenced to signal ground provide differential and common-mode surge suppression. Use Value: Limits line-to-ground voltage excursion to safe levels during 1 kA/10/700 µs surges, preserving transceiver integrity. |
| Metering Equipment Surge Guard | Medical Device Isolated Interface |
Use Scenario: Smart electricity meter with AC mains-derived auxiliary supply vulnerable to grid switching transients. IC Role / Device Role / Timing Role: Mounted at AC-DC converter input to absorb 6 kV ring wave surges per IEC 61000-4-12. Use Value: Prevents latch-up or destruction of rectifier bridge and primary-side controller via sub-1 ns response and 600 W energy absorption. | Use Scenario: Patient-connected diagnostic device requiring reinforced isolation between sensor front-end and digital processing unit. IC Role / Device Role / Timing Role: Installed on isolated data lines (e.g., SPI, UART) crossing barrier to meet UL 497B requirements for protector classification. Use Value: Provides certified transient protection without compromising creepage/clearance distances mandated for BF-rated medical applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ45A | Surface-mount SMB package; 45 V VRWM; 70 V VC @ 8.6 A; same 600 W rating | Requires PCB rework for SMT layout; lower thermal resistance but no axial through-hole mounting option | Select when board space is constrained and automated assembly is preferred over manual thru-hole insertion. |
| P6KE47CA | Bi-directional variant; same VRWM and VC specs but symmetric clamping for AC or bidirectional signals | Used where line polarity is undefined or AC-coupled (e.g., telephone line, analog sensor inputs) | Choose only if bidirectional protection is required; P6KE47ARL is not interchangeable due to polarity sensitivity. |
Compared with SMBJ45A and P6KE47CA, the P6KE47ARL offers axial-leaded through-hole mounting for high-reliability prototyping and legacy systems, maintains UL 497B recognition for isolated loop use, and provides unidirectional clamping optimized for DC power rails - making it distinct in mechanical integration, safety compliance scope, and circuit topology fit.
Availability
P6KE47ARL is available at Aetrix Electronics and suitable for industrial power supplies, communication interfaces, medical instrumentation, and metering equipment requiring stable component supply across extended production lifecycles.
Supply support for P6KE47ARL 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
ON Semiconductor (now part of onsemi) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensors, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The P6KE47ARL belongs to the P6KE6.8A Series - a family of 600 W axial-leaded TVS diodes engineered for cost-effective, high-reliability transient suppression in harsh industrial environments and safety-certified applications.
FAQ
What is the working peak reverse voltage (VRWM) of the P6KE47ARL?
The P6KE47ARL has a working peak reverse voltage (VRWM) of 40.2 V, meaning it remains non-conductive up to this DC or continuous peak reverse voltage level. This value ensures compatibility with 36–42 V nominal systems such as telecom power rails and industrial 48 V DC supplies, providing sufficient margin before clamping initiates.
Does the P6KE47ARL meet UL safety standards?
Yes, the P6KE47ARL is UL 497B recognized (File #E210057, QVGQ2 category) for isolated loop circuit protection. This certification covers rigorous testing including strike voltage breakdown, endurance conditioning, temperature cycling, dielectric withstand, and discharge performance - confirming its suitability for safety-critical telecom and industrial applications.
What is the clamping voltage of the P6KE47ARL under surge conditions?
The P6KE47ARL clamps to a maximum of 64.8 V when subjected to its rated peak pulse current of 9.3 A (1 ms, 8.3 ms half-sine waveform). This clamping voltage defines the upper voltage limit imposed on protected circuitry during transient events and must be compared against the absolute maximum ratings of downstream components.
Is the P6KE47ARL RoHS compliant and lead-free?
Yes, the P6KE47ARL is a Pb-free (RoHS-compliant) device, indicated by the "RLG" suffix in related variants (e.g., P6KE47ARLG). While the "RL" suffix denotes tape-and-reel packaging, ON Semiconductor confirms that all P6KE47A-series devices manufactured post-2009 meet JEDEC J-STD-609 Category 1 moisture sensitivity and RoHS Directive 2011/65/EU requirements.
How does the P6KE47ARL compare to the P6KE47A in terms of packaging and reliability?
The P6KE47ARL uses the same Surmetic-40 axial-leaded plastic package (Case 017AA) and electrical specifications as the P6KE47A, differing only in packaging format: P6KE47ARL is supplied in 4000-piece tape-and-reel, whereas P6KE47A is in 1000-unit boxes. Both share identical thermal resistance (20 °C/W), surge capability, and UL 497B recognition - ensuring equivalent reliability in end-use applications.
P6KE47ARL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- T-18, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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):
- 9.3A (8/20µs)
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
P6KE47ARL FAQ
1.How can I place an order for P6KE47ARL through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE47ARL 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 P6KE47ARL reliable?
The price and inventory of P6KE47ARL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE47ARL is usually 5 days.
3.What payment methods are accepted for P6KE47ARL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE47ARL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE47ARL?
P6KE47ARL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE47ARL 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 P6KE47ARL?
For technical support, including P6KE47ARL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE47ARL requirements.
6.How does Aetrix verify that P6KE47ARL is sourced from the original manufacturer or authorized distributors?
All P6KE47ARL 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 P6KE47ARL meets industry standards.
7.What is the process for return or replacement of P6KE47ARL?
All P6KE47ARL units undergo pre-shipment inspection (PSI). If there is an issue with P6KE47ARL, 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 P6KE47ARL part is unused and in its original packaging.
Return procedure for P6KE47ARL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE47ARL Tags
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