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onsemi P6KE22ARL
- Part No.:
- P6KE22ARL
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- T-18, Axial
- Datasheet:
-
P6KE22ARL.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:2,569
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Product details
Overview
P6KE22ARL 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 against ESD and surge events. It features 22 V breakdown voltage (VBR = 20.9–23.1 V @ IT = 1 A), 30.6 V maximum clamping voltage (VC) at 20 A peak pulse current, and 600 W peak power dissipation for 1 ms. Used in power supplies, medical equipment, and industrial controls to protect downstream ICs and interfaces.
For engineers reviewing the P6KE22ARL datasheet, pinout, applications, or equivalent options, key selection criteria include working peak reverse voltage (VRWM = 18.8 V), low leakage (<5 µA @ VRWM), fast response time (<1 ns), and UL 497B recognition for isolated loop circuit protection.
Technical Context
The P6KE22ARL operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its specified breakdown range. Its clamping action limits transient energy by diverting surge current to ground while maintaining VC ≤ 30.6 V at IPP = 20 A - critical for safeguarding 24 V nominal systems.
It exhibits a temperature coefficient of 0.092 %/°C for VBR, enabling predictable voltage drift over −55 °C to +150 °C operating range. Thermal resistance (RJL = 20 °C/W) and steady-state power rating (PD = 5.0 W @ TL ≤ 25 °C) support reliable operation under sustained stress conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 18.8 V - maximum continuous reverse operating voltage; must be ≥ system DC/peak voltage to avoid leakage or conduction during normal operation |
| VBR @ IT | 20.9–23.1 V @ 1 A - breakdown voltage range defining turn-on threshold; ensures consistent clamping onset across production lots |
| VC @ IPP | 30.6 V @ 20 A - maximum clamped voltage during 1 ms surge; guarantees protected circuit sees ≤30.6 V under worst-case 600 W transient |
| IPP | 20 A - peak pulse current capability; determines minimum system impedance required to limit surge current to safe level |
| Leakage @ VRWM | <5 µA - ultra-low reverse leakage preserves signal integrity and minimizes standby power loss in high-impedance nodes |
| Response Time | <1 ns - enables suppression before most ICs experience latch-up or gate oxide damage from fast transients |
| ESD Rating | Class 3 (>16 kV HBM) - meets IEC 61000-4-2 Level 4 for robust handling in manufacturing and field environments |
Pinout & Package
Surmetic-40 axial-leaded plastic package (Case 017AA), with cathode indicated by a polarity band. Leads are solderable per J-STD-020; max solder temperature is 260 °C at 1/16″ from case for 10 seconds. Mounting position is unrestricted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction; connected to system ground or low-side reference | Provides return path for surge current; must be routed with minimal inductance to maintain clamping performance |
| Cathode | Protected line connection; marked with polarity band | Connected to the node requiring protection (e.g., 24 V rail); reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Supports robust protection against IEC 61000-4-5 4 kV/2 Ω surge tests without degradation |
| UL 497B recognition | Validated for use in isolated loop circuits including telecom and process control safety-critical interfaces |
| Low temperature coefficient (0.092 %/°C) | Ensures stable clamping voltage across industrial temperature range, reducing design margin uncertainty |
| Pb-free tape-and-reel packaging (RLG suffix) | Complies with RoHS Directive 2011/65/EU; P6KE22ARL uses standard SnPb-compatible reflow profile |
| Void-free thermoset molding | Prevents moisture ingress and delamination during thermal cycling, enhancing long-term reliability in humid environments |
Applications
| Industrial Power Supply Protection | Medical Equipment Input Stage |
|---|---|
Use Scenario: 24 V DC input stage of programmable logic controller (PLC) power module exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed across input terminals to clamp surges before they reach upstream rectifier and regulator ICs. Use Value: Limits transient voltage to ≤30.6 V, preventing damage to 36 V-rated input capacitors and enabling compliance with IEC 61000-4-4 Level 3 immunity testing. | Use Scenario: Patient-connected sensor interface in diagnostic ultrasound system where ESD on front-panel connectors could disrupt analog front-end. IC Role / Device Role / Timing Role: Primary surge clamp on isolated 12 V auxiliary supply rail feeding ADC reference and op-amp bias networks. Use Value: Provides Class 3 HBM ESD protection (>16 kV) and sub-1 ns response to preserve signal fidelity and prevent data corruption during clinical use. |
| Process Control Signal Conditioning | Business Machine Power Entry |
Use Scenario: 4–20 mA current loop transmitter in factory automation, subject to cable-induced lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional protection not required; unidirectional P6KE22ARL used on loop supply side to absorb positive-going transients only. Use Value: Clamps 1 kV/0.5 µs transients to <31 V with no degradation after 1000 pulses, meeting UL 497B requirements for loop-powered devices. | Use Scenario: AC/DC adapter input stage in enterprise-grade multifunction printer, subjected to mains-borne surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: First-line transient suppressor on primary-side rectified DC bus before bulk capacitor and PWM controller. Use Value: Absorbs 600 W peak energy without failure, allowing downstream MOV and fuse coordination to meet EN 62368-1 safety standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22A | Surface-mount SMB package; same VRWM (18.8 V), slightly higher VC (35.5 V @ 17.1 A) | Requires PCB redesign for SMT placement; better suited for high-density layouts where axial leads are impractical | Select SMBJ22A when board space is constrained and automated assembly is preferred over through-hole mounting. |
| 1.5KE22A | Higher peak power (1500 W), larger DO-201 package; identical VRWM/VC specs but 50% higher IPP (45.5 A) | Overqualified for 600 W needs; used where legacy designs mandate DO-201 mechanical footprint or higher surge margin is mandated | Choose 1.5KE22A only if system-level surge testing requires >600 W headroom or existing tooling supports DO-201 axial form factor. |
Compared with SMBJ22A and 1.5KE22A, the P6KE22ARL delivers optimal balance of cost, axial-leaded manufacturability, and 600 W surge capability - making it ideal for cost-sensitive industrial power supplies where leaded assembly remains standard and precise clamping voltage is critical.
Availability
P6KE22ARL is available at Aetrix Electronics and suitable for industrial power supplies, medical equipment input stages, process control signal conditioning, and business machine power entry requiring stable component supply and UL-recognized transient protection.
Supply support for P6KE22ARL 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, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The P6KE22ARL belongs to the P6KE6.8A Series of 600 W axial-leaded TVS diodes, engineered specifically for cost-effective, high-reliability transient suppression in communication systems, numerical controls, medical equipment, and industrial power supplies.
FAQ
What is the clamping voltage of the P6KE22ARL under maximum surge conditions?
The P6KE22ARL has a maximum clamping voltage (VC) of 30.6 V when subjected to a 20 A peak pulse current (IPP) with a 1 ms waveform. This value is measured per Figure 4 in the official datasheet and defines the upper voltage limit imposed on protected circuits during transient events. The P6KE22ARL maintains this clamping performance across its full operating temperature range and after repeated surge exposure, provided derating guidelines are followed.
Is the P6KE22ARL RoHS compliant and what does the 'RL' suffix indicate?
Yes, the P6KE22ARL is RoHS compliant and Pb-free. The 'RL' suffix denotes tape-and-reel packaging (4000 units per reel) with standard SnPb-compatible reflow profiles. While the base P6KE22A is available in both standard and Pb-free versions, the RLG variant explicitly confirms Pb-free construction - a requirement verified by onsemi's material declarations and certified test reports. The P6KE22ARL meets EU Directive 2011/65/EU without exemptions.
How does the P6KE22ARL differ from bidirectional TVS diodes like P6KE22CA?
The P6KE22ARL is unidirectional and functions only during reverse-voltage transients, behaving as an open circuit under forward bias. In contrast, P6KE22CA provides symmetrical clamping for both polarities - useful in AC lines or differential buses. The P6KE22ARL offers lower leakage and tighter VBR tolerance than its bidirectional counterpart, making it preferable for DC rail protection where polarity is fixed and leakage must be minimized.
Can the P6KE22ARL be used in place of P6KE20A or P6KE24A in an existing design?
Substitution between P6KE22ARL, P6KE20A, and P6KE24A is possible only if the system's working voltage and surge margin allow variation in VRWM (18.8 V vs. 17.1 V vs. 20.5 V) and clamping voltage (30.6 V vs. 27.7 V vs. 33.2 V). The P6KE22ARL is not a drop-in replacement: its VRWM is 1.7 V higher than P6KE20A and 1.7 V lower than P6KE24A. Design validation is required to confirm compatibility with the protected circuit's voltage tolerances and surge test profile.
What is the thermal resistance and steady-state power rating of the P6KE22ARL?
The P6KE22ARL has a junction-to-lead thermal resistance (RJL) of 20 °C/W and a steady-state power dissipation (PD) of 5.0 W at lead temperature ≤25 °C. Above 50 °C, it derates linearly at 50 mW/°C. These values assume 3/8″ lead length and free-air conditions. For continuous operation, the P6KE22ARL must be mounted with adequate copper pour or heatsinking to maintain TL within specification - especially in enclosed or high-ambient environments.
P6KE22ARL 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):
- 18.8V
- Voltage - Breakdown (Min):
- 20.9V
- Voltage - Clamping (Max) @ Ipp:
- 30.6V
- Current - Peak Pulse (10/1000µs):
- 20A (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
P6KE22ARL FAQ
1.How can I place an order for P6KE22ARL through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE22ARL 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 P6KE22ARL reliable?
The price and inventory of P6KE22ARL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE22ARL is usually 5 days.
3.What payment methods are accepted for P6KE22ARL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE22ARL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE22ARL?
P6KE22ARL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE22ARL 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 P6KE22ARL?
For technical support, including P6KE22ARL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE22ARL requirements.
6.How does Aetrix verify that P6KE22ARL is sourced from the original manufacturer or authorized distributors?
All P6KE22ARL 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 P6KE22ARL meets industry standards.
7.What is the process for return or replacement of P6KE22ARL?
All P6KE22ARL units undergo pre-shipment inspection (PSI). If there is an issue with P6KE22ARL, 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 P6KE22ARL part is unused and in its original packaging.
Return procedure for P6KE22ARL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE22ARL Tags
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