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onsemi P6KE20ARL
- Part No.:
- P6KE20ARL
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- T-18, Axial
- Datasheet:
-
P6KE20ARL.pdf
- Description:
- TVS DIODE 17.1VWM 27.7VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:6,827
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Product details
Overview
P6KE20ARL from ON Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in axial-leaded Surmetic-40 package, designed for parallel clamping of voltage-sensitive circuits. It delivers 600 W peak pulse power at 1 ms, clamps transients to ≤27.7 V at 22 A peak pulse current, and maintains ≤5 µA leakage at 17.1 V working reverse voltage - used in industrial power supplies and communication interfaces for surge immunity.
For engineers reviewing the P6KE20ARL datasheet, pinout, applications, or equivalent options, key selection criteria include VRWM ≥17.1 V, VC ≤27.7 V @ IPP=22 A, fast <1 ns response time, UL 497B recognition for isolated loop protection, and Pb-free tape-and-reel packaging (4000 pcs/reel).
Technical Context
The P6KE20ARL operates as a silicon avalanche diode with precisely controlled breakdown characteristics. Its clamping action begins at VBR = 19–21 V (measured at IT = 1 mA), sustaining 600 W nonrepetitive surges per Figure 4 waveform (tp = 1 ms, 8.3 ms half-sine equivalent). Thermal resistance is 20 °C/W junction-to-lead, enabling 5.0 W steady-state dissipation at TL ≤ 25°C with 3/8″ lead length.
It exhibits a temperature coefficient of 0.09 %/°C for VBR, ensuring stable breakdown across −55°C to +150°C operating range. The device features cathode polarity band marking, void-free thermosetting plastic case (Case 017AA), and is rated for 260°C soldering (10 s at 1/16″ from case).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600 W @ 1 ms - withstands IEC 61000-4-5 Level 4 surges without failure |
| Working Peak Reverse Voltage (VRWM) | 17.1 V - maximum continuous DC or peak AC voltage before clamping initiates |
| Clamping Voltage (VC) | 27.7 V @ IPP = 22 A - limits protected circuit voltage during transient events |
| Breakdown Voltage (VBR) | 19–21 V @ IT = 1 mA - precise avalanche onset ensures predictable turn-on threshold |
| Leakage Current (IR) | ≤5 µA @ VRWM = 17.1 V - minimal standby power loss and signal integrity impact |
| Response Time | <1 ns - enables suppression before most microsecond-scale transients propagate |
| ESD Rating | Class 3 (>16 kV HBM) - meets IEC 61000-4-2 for system-level ESD robustness |
Pinout & Package
Surmetic-40 axial-leaded package (Case 017AA), 8.38–8.89 mm body length, 3.30–3.68 mm diameter, cathode indicated by color band. Leads are corrosion-resistant, readily solderable, and rated for 260°C (10 s, 1/16″ from case).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to ground or low-impedance return path in unidirectional TVS configuration |
| Cathode | Current exit point during reverse-biased clamping | Connected to protected line (e.g., VCC, data line); polarity band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| UL 497B Recognition | Qualified for isolated loop circuit protection - passes strike voltage, endurance, dielectric withstand, and discharge testing |
| Low Clamping Ratio (VC/VBR) | ~1.46 (27.7 V / 19 V) - tight margin between breakdown and clamp improves system safety margin |
| Pb-Free Tape & Reel Packaging | 4000 pcs/reel (P6KE20ARLG variant) - supports automated SMT assembly with RoHS compliance |
| Stable Temperature Coefficient | 0.09 %/°C - minimizes VBR drift over industrial temperature range (−55°C to +150°C) |
| High Surge Robustness | Withstands 100 A forward surge (8.3 ms half-sine) - protects against load dump and inductive switching events |
Applications
| Industrial Power Supplies | Telecom Line Interfaces |
|---|---|
|
Use Scenario: Input stage of AC/DC adapters and DC/DC converters exposed to lightning-induced surges on mains or output rails. IC Role / Device Role / Timing Role: Unidirectional shunt clamping device placed across input capacitor or output rail to limit transient overvoltage. Use Value: Clamps 600 W surges to ≤27.7 V while maintaining ≤5 µA leakage at 17.1 V - prevents MOSFET gate oxide rupture and controller IC latch-up. |
Use Scenario: Protection of RS-485 transceivers and Ethernet PHY interfaces against EFT and surge coupling from field wiring. IC Role / Device Role / Timing Role: Parallel-connected TVS on differential data lines (A/B) referenced to local ground. Use Value: Sub-1 ns response ensures clamping before transceiver input stages experience destructive overvoltage - validated per IEC 61000-4-4/5. |
| Medical Equipment Power Inputs | PLC Digital I/O Modules |
|
Use Scenario: Mains-connected auxiliary power supplies in diagnostic imaging and patient monitoring systems requiring regulatory-compliant surge immunity. IC Role / Device Role / Timing Role: Primary-stage TVS on L/N inputs upstream of EMI filter and bridge rectifier. Use Value: UL 497B recognition confirms suitability for isolated loop protection - satisfies EN 60601-1 creepage/clearance and surge test requirements. |
Use Scenario: 24 V DC digital input channels in programmable logic controllers subjected to inductive kickback from solenoid loads. IC Role / Device Role / Timing Role: Cathode tied to 24 V rail, anode to ground - clamps negative-going transients generated by relay coil de-energization. Use Value: 100 A forward surge rating handles repetitive 8.3 ms inductive spikes without degradation - extends channel reliability in factory automation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ20A | Surface-mount SMB package (3.5 × 4.6 mm), same VRWM (17.1 V) and VC (28.8 V @ 21.2 A), but lower 600 W rating derated above 25°C ambient | Requires PCB re-layout; better suited for high-density boards where axial leads are impractical | Select when space-constrained designs demand SMT compatibility and thermal management via copper pour |
| 1.5KE20A | Higher 1500 W peak power (1 ms), same VRWM (17.1 V) and VC (28.8 V @ 43.5 A), axial lead but larger DO-201AD package (Case 017AB) | Over-spec'd for 600 W needs; introduces higher parasitic inductance due to longer leads | Choose only when legacy 1.5 kW surge immunity is mandated and board layout accommodates larger footprint |
Compared with SMBJ20A and 1.5KE20A, the P6KE20ARL offers optimal balance of axial-leaded serviceability, UL 497B certification for isolated loops, and precise 600 W surge handling - making it preferred for cost-sensitive industrial power and interface protection where through-hole assembly remains standard.
Availability
P6KE20ARL is available at Aetrix Electronics and suitable for industrial power supplies, telecom line interfaces, medical equipment inputs, and PLC digital I/O modules requiring stable component supply with full traceability and lifecycle support.
Supply support for P6KE20ARL 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 is a global semiconductor manufacturer specializing in power management, analog, sensor, and discrete devices for automotive, industrial, and cloud power applications.
The P6KE20ARL belongs to the P6KE6.8A Series - a family of 600 W axial-leaded TVS diodes engineered for cost-effective, high-reliability transient suppression in industrial and communications infrastructure.
FAQ
What is the clamping voltage of the P6KE20ARL under maximum surge conditions?
The P6KE20ARL clamps to a maximum of 27.7 V when subjected to its rated peak pulse current of 22 A (1 ms waveform). This value is measured per Figure 4 in the official ON Semiconductor datasheet and defines the upper voltage limit imposed on protected circuits during transient events. The P6KE20ARL maintains this clamping performance across its specified operating temperature range and is validated for repeatable operation under standardized surge profiles.
Is the P6KE20ARL RoHS compliant and what does the 'RL' suffix indicate?
Yes, the P6KE20ARL is RoHS compliant and Pb-free, as confirmed by ON Semiconductor's packaging documentation. The 'RL' suffix denotes tape-and-reel packaging containing 4000 units per reel - optimized for automated pick-and-place assembly. The 'G' in alternate part number P6KE20ARLG explicitly marks Pb-free construction, but both P6KE20ARL and P6KE20ARLG meet RoHS Directive 2011/65/EU requirements.
Does the P6KE20ARL have UL recognition and for which standard?
Yes, the P6KE20ARL carries UL 497B recognition (File #E210057, QVGQ2 category) for isolated loop circuit protection. This certification covers the entire P6KE6.8A–P6KE200A series and validates performance in strike voltage breakdown, endurance conditioning, dielectric withstand, and discharge testing - confirming suitability for safety-critical telecom and medical isolation barriers.
What is the maximum steady-state power dissipation for the P6KE20ARL?
The P6KE20ARL dissipates up to 5.0 W continuously at lead temperature (TL) ≤ 25°C with 3/8″ lead length. Power derating follows a linear 50 mW/°C reduction above TL = 50°C, per Figure 5 in the datasheet. This steady-state rating applies only when the device operates below its clamping threshold - during transient suppression, energy is absorbed in short bursts, not continuously.
How does the temperature coefficient affect the P6KE20ARL's breakdown voltage?
The P6KE20ARL has a VBR temperature coefficient of +0.09 %/°C, meaning its breakdown voltage increases by approximately 17 mV per °C rise above 25°C. At +125°C, VBR shifts from nominal 20 V to ~21.6 V - still within the 19–21 V datasheet range at 25°C. This positive drift ensures safe margin expansion under high-temperature operation, preventing premature clamping.
P6KE20ARL 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):
- 17.1V
- Voltage - Breakdown (Min):
- 19V
- Voltage - Clamping (Max) @ Ipp:
- 27.7V
- Current - Peak Pulse (10/1000µs):
- 22A (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
P6KE20ARL FAQ
1.How can I place an order for P6KE20ARL through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE20ARL 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 P6KE20ARL reliable?
The price and inventory of P6KE20ARL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE20ARL is usually 5 days.
3.What payment methods are accepted for P6KE20ARL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE20ARL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE20ARL?
P6KE20ARL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE20ARL 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 P6KE20ARL?
For technical support, including P6KE20ARL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE20ARL requirements.
6.How does Aetrix verify that P6KE20ARL is sourced from the original manufacturer or authorized distributors?
All P6KE20ARL 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 P6KE20ARL meets industry standards.
7.What is the process for return or replacement of P6KE20ARL?
All P6KE20ARL units undergo pre-shipment inspection (PSI). If there is an issue with P6KE20ARL, 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 P6KE20ARL part is unused and in its original packaging.
Return procedure for P6KE20ARL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE20ARL Tags
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