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onsemi P6KE20ARLG
- Part No.:
- P6KE20ARLG
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- T-18, Axial
- Datasheet:
-
P6KE20ARLG.pdf
- Description:
- TVS DIODE 17.1VWM 27.7VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:13,903
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Product details
Overview
P6KE20ARLG 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 600 W peak pulse power (1 ms), 27.7 V clamping voltage at 22 A peak pulse current, and 17.1 V working peak reverse voltage - enabling robust surge protection in DC power rails and interface lines.
For engineers reviewing the P6KE20ARLG datasheet, pinout, applications, or equivalent options, key selection criteria include VRWM ≥ system operating voltage, VC margin below IC absolute maximum ratings, low leakage (<5 µA @ 17.1 V), fast response (<1 ns), and UL 497B recognition for isolated loop circuit protection.
Technical Context
The P6KE20ARLG operates as a silicon avalanche diode with precise breakdown voltage of 19–21 V at 1 mA test current and temperature coefficient of 0.09 %/°C. Its unidirectional polarity enables DC-biased line protection where reverse conduction must be blocked until clamping threshold is exceeded.
It delivers 600 W nonrepetitive peak pulse power per 1 ms 10/1000 µs waveform, with thermal resistance of 20 °C/W (junction-to-lead) and steady-state power dissipation of 5.0 W at TL ≤ 25°C. Derating begins above 50°C at 50 mW/°C, supporting reliable operation in industrial ambient conditions up to +150°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600 W @ 1 ms - withstands IEC 61000-4-5 Level 4 surges on 50 Ω source impedance |
| Working Peak Reverse Voltage (VRWM) | 17.1 V - sets minimum DC operating voltage threshold before leakage rises significantly |
| Clamping Voltage (VC) | 27.7 V @ 22 A IPP - defines maximum voltage seen by protected circuit during surge |
| Breakdown Voltage (VBR) | 19–21 V @ 1 mA - ensures predictable turn-on within tight tolerance band |
| Leakage Current (IR) | <5 µA @ 17.1 V - negligible standby power loss in always-on systems |
| Response Time | <1 ns - limits overshoot during fast-rising ESD or lightning-induced transients |
| ESD Rating | Class 3 (>16 kV HBM) - meets IEC 61000-4-2 for system-level ESD immunity |
Pinout & Package
Surmetic-40 axial-leaded plastic package (Case 017AA), Pb-free, cathode indicated by band. Leads are solderable at 260°C for 10 seconds at 1/16″ from case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; carries full surge current during clamping |
| Cathode | High-side connection point | Connected to protected line; polarity band identifies cathode for correct orientation |
Key Features
| Feature | Design Value |
|---|---|
| UL 497B Recognition | Validated for isolated loop circuit protection - satisfies safety compliance in telecom and industrial interfaces |
| Low Clamping Ratio | VC/VRWM = 27.7/17.1 ≈ 1.62 - tighter voltage control than generic TVS diodes (typical >1.7) |
| Stable Temperature Coefficient | 0.09 %/°C - ensures predictable VBR shift over -55°C to +150°C operating range |
| Pb-Free Construction | RoHS-compliant Surmetic-40 package - supports lead-free assembly without reliability compromise |
Applications
| Industrial Power Supply Protection | Telecom Line Interface |
|---|---|
Use Scenario: 24 V DC input rail in programmable logic controller (PLC) power module exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed across input terminals to shunt surge energy to ground before it reaches upstream regulators and microcontrollers. Use Value: 27.7 V clamping ensures downstream 3.3 V/5 V logic remains below 30 V absolute maximum rating during 600 W surge events. | Use Scenario: RS-485 data line in building automation node connected to long outdoor cable runs susceptible to lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional protection not required; unidirectional P6KE20ARLG used on VCC-referenced signal line with common-mode choke and series impedance. Use Value: UL 497B certification validates suitability for isolated loop circuits, meeting EN 61000-4-5 surge immunity requirements. |
| Medical Equipment Input Stage | Automotive Aftermarket Module |
Use Scenario: 12 V auxiliary power input in portable ultrasound device requiring low-leakage, high-reliability surge suppression. IC Role / Device Role / Timing Role: Primary transient suppressor on main DC input, positioned immediately after connector to minimize PCB trace inductance. Use Value: <5 µA leakage at 17.1 V prevents battery drain in always-connected devices; <1 ns response minimizes voltage overshoot before clamping engages. | Use Scenario: CAN bus power conditioning in vehicle diagnostic tool powered from OBD-II port (12 V nominal). IC Role / Device Role / Timing Role: Front-end protection for 5 V LDO regulator feeding CAN transceiver, placed between fuse and regulator input. Use Value: 17.1 V VRWM matches 12 V system with margin for ripple and load dump; 600 W rating handles ISO 7637-2 Pulse 1/2a/5a stress profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ20A | Surface-mount SMB package; same VRWM (17.1 V), slightly higher VC (27.8 V @ 21.5 A); lower peak power (600 W same, but shorter thermal time constant) | Requires PCB rework for SMT layout; better suited for high-density boards with automated assembly | Select when board space is constrained and reflow compatibility is prioritized over through-hole serviceability |
| P6KE20A | Same die, identical electrical specs, but standard SnPb axial package (non-Pb-free); RoHS exemption applies | No change in protection performance; differs only in lead finish and compliance status | Select only if Pb-free requirement is waived and legacy solder process is used |
Compared with SMBJ20A and P6KE20A, the P6KE20ARLG uniquely combines Pb-free axial construction, UL 497B recognition, and proven field reliability in industrial power entry designs - making it optimal for through-hole production with regulatory compliance needs.
Availability
P6KE20ARLG is available at Aetrix Electronics and suitable for industrial power supplies, telecom interface modules, medical equipment inputs, and automotive aftermarket electronics requiring stable component supply and long-term lifecycle support.
Supply support for P6KE20ARLG 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 power management, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and IoT applications.
The P6KE20ARLG belongs to the P6KE6.8A Series - a family of 600 W axial-leaded TVS diodes engineered for cost-effective, high-surge-capability protection in harsh environments where reliability and safety certification are critical.
FAQ
What is the clamping voltage of the P6KE20ARLG and how is it measured?
The P6KE20ARLG has a maximum clamping voltage (VC) of 27.7 V at 22 A peak pulse current (IPP), measured using the 10/1000 µs double-exponential surge waveform per Figure 4 in the datasheet. This value represents the highest voltage the device allows across its terminals during a standardized 600 W transient event, ensuring downstream components remain within safe operating limits.
Does the P6KE20ARLG meet UL safety standards?
Yes, the P6KE20ARLG is UL Recognized under UL 497B (File #E210057, QVGQ2 category) for isolated loop circuit protection. This certification covers tests including strike voltage breakdown, endurance conditioning, dielectric withstand, and discharge performance - confirming its suitability for safety-critical telecom and industrial isolation barriers.
What is the meaning of the "RLG" suffix in P6KE20ARLG?
The "RLG" suffix in P6KE20ARLG indicates an axial-leaded, Pb-free (RoHS-compliant) version supplied in tape-and-reel packaging (4000 units per reel). The "R" denotes tape-and-reel, "L" confirms axial lead configuration, and "G" specifies Pb-free construction - distinguishing it from through-hole box-packaged variants like P6KE20AG.
Can the P6KE20ARLG be used in bidirectional protection circuits?
No, the P6KE20ARLG is a unidirectional TVS diode and must be used only in DC-biased or polarity-defined applications. For AC or bipolar signal lines, a bidirectional variant such as P6KE20CA or SMAJ20A is required. Using P6KE20ARLG in reverse-biased AC configurations risks permanent damage due to forward conduction during negative half-cycles.
What is the thermal resistance and power derating behavior of the P6KE20ARLG?
The P6KE20ARLG has a junction-to-lead thermal resistance (RJL) of 20 °C/W. Its steady-state power dissipation is rated at 5.0 W at TL ≤ 25°C, derating linearly at 50 mW/°C above TL = 50°C. This allows safe operation up to +150°C junction temperature when mounted with proper lead length (3/8″) and ambient cooling.
P6KE20ARLG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- T-18, Axial
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- 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
P6KE20ARLG FAQ
1.How can I place an order for P6KE20ARLG through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE20ARLG 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 P6KE20ARLG reliable?
The price and inventory of P6KE20ARLG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE20ARLG is usually 5 days.
3.What payment methods are accepted for P6KE20ARLG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE20ARLG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE20ARLG?
P6KE20ARLG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE20ARLG 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 P6KE20ARLG?
For technical support, including P6KE20ARLG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE20ARLG requirements.
6.How does Aetrix verify that P6KE20ARLG is sourced from the original manufacturer or authorized distributors?
All P6KE20ARLG 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 P6KE20ARLG meets industry standards.
7.What is the process for return or replacement of P6KE20ARLG?
All P6KE20ARLG units undergo pre-shipment inspection (PSI). If there is an issue with P6KE20ARLG, 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 P6KE20ARLG part is unused and in its original packaging.
Return procedure for P6KE20ARLG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE20ARLG Tags
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