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onsemi P6KE20AG
- Part No.:
- P6KE20AG
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- T-18, Axial
- Datasheet:
-
P6KE20AG.pdf
- Description:
- TVS DIODE 17.1VWM 27.7VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:4,762
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Product details
Overview
P6KE20AG 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 17.1 V working peak reverse voltage (VRWM), 27.7 V clamping voltage (VC) at 22 A peak pulse current (IPP), and 600 W peak power dissipation for 1 ms pulses - deployed in power supplies, industrial controls, and medical equipment.
For engineers reviewing the P6KE20AG datasheet, pinout, applications, or equivalent options, key selection criteria include VRWM ≥ circuit operating voltage, VC margin relative to IC absolute maximum ratings, surge current capability under IEC 61000-4-5 waveforms, and Pb-free compliance for RoHS-constrained designs.
Technical Context
The P6KE20AG operates as a silicon avalanche diode with fast turn-on response (<1 ns) and low dynamic impedance during clamping. Its breakdown voltage (VBR) is specified at 19–21 V (min–max) with 1 A test current, and it exhibits a temperature coefficient of 0.09 %/°C - enabling predictable voltage drift over temperature in protection circuits.
Designed for parallel-connected transient suppression, it relies on external series impedance (e.g., fuse, resistor, or trace inductance) to limit fault current during clamping. Its thermal resistance (RJL = 20 °C/W) and steady-state power rating (5.0 W at TL ≤ 25°C) define safe continuous operation limits when mounted with 3/8″ lead length.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 17.1 V - maximum continuous reverse voltage before significant leakage; must exceed circuit's DC or peak AC operating voltage |
| VC @ IPP | 27.7 V @ 22 A - clamped voltage during 1 ms 8.3 ms half-sine surge; defines worst-case stress on protected load |
| PPK | 600 W - non-repetitive peak power handling per Figure 4; derates above 25°C ambient or elevated duty cycles |
| IR @ VRWM | 5 µA max - low reverse leakage ensures minimal standby power loss and signal integrity in high-impedance nodes |
| VBR Range | 19–21 V @ 1 A - tight breakdown tolerance enables consistent triggering across production lots |
| Response Time | <1 ns - enables effective suppression of fast-rising ESD and lightning-induced transients before downstream damage occurs |
| TJ Range | −55 to +150 °C - supports operation in harsh industrial and automotive under-hood environments |
Pinout & Package
Surmetic-40 axial-leaded plastic package (Case 017AA), cathode indicated by band. Leads are solderable, corrosion-resistant, rated for 260°C for 10 seconds at 1/16″ from case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink during forward conduction; connected to ground or low-side reference | Provides return path for surge current when device clamps in reverse breakdown |
| Cathode | High-voltage input node; marked with polarity band | Connected to line or signal being protected; reverse-biased during normal operation, avalanches during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| UL 497B Recognition | Qualified for isolated loop circuit protection - meets safety requirements for telecom and industrial interfaces |
| ESD Robustness | Class 3 (>16 kV HBM) - withstands handling and system-level ESD without degradation |
| Pb-Free Construction | RoHS-compliant Surmetic-40 package - eliminates lead contamination risk in assembly and end-of-life processing |
| Low Clamping Ratio | VC/VBR ≈ 1.46 - tight ratio minimizes overvoltage margin needed for protected ICs' absolute maximum ratings |
| Thermal Stability | 0.09 %/°C VBR tempco - enables accurate clamping voltage prediction across −55°C to +150°C operating range |
Applications
| Industrial Power Supply Protection | Medical Equipment Surge Suppression |
|---|---|
Use Scenario: Protecting DC output rails of switch-mode power supplies against load-dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed across output capacitor to clamp positive-going surges before they reach downstream regulators or microcontrollers. Use Value: Limits transient voltage to 27.7 V, preventing latch-up or oxide rupture in 3.3 V/5 V logic powered from the rail. | Use Scenario: Safeguarding patient-connected analog front-ends (e.g., ECG, EEG inputs) from defibrillator discharge and ESD events. IC Role / Device Role / Timing Role: High-reliability TVS installed at connector interface to shunt energy away from precision amplifiers and ADC inputs. Use Value: Sub-1 ns response ensures clamping occurs before transient propagates into signal chain, preserving diagnostic accuracy. |
| Programmable Logic Controller I/O Protection | Telecom Line Interface Protection |
Use Scenario: Shielding 24 V DC digital input channels in PLC modules from field-wiring induced surges and ground-loop transients. IC Role / Device Role / Timing Role: Standoff diode mounted directly at terminal block to minimize lead inductance and overshoot during clamping. Use Value: 600 W peak power rating handles repetitive 10/1000 µs surges per IEC 61000-4-5 Level 3 without degradation. | Use Scenario: Protecting RS-485 transceivers and isolation barriers in base station backhaul links from lightning-induced common-mode surges. IC Role / Device Role / Timing Role: UL 497B-recognized TVS used in primary protection stage to meet telecom safety standards for isolated loops. Use Value: Certified performance allows direct use in UL-listed equipment without additional system-level validation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage 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 or automated assembly vs. through-hole P6KE20AG | Select SMBJ20A when board space is constrained and reflow compatibility is required. |
| 1.5KE20A | Same axial package but higher peak power (1500 W); identical VRWM and VBR; larger physical size (Case 017AB) | Used where higher single-pulse energy (e.g., automotive load dump) exceeds P6KE20AG's 600 W rating | Choose 1.5KE20A only if surge energy exceeds 600 W × 1 ms and mechanical envelope permits larger case. |
Compared with SMBJ20A and 1.5KE20A, the P6KE20AG offers optimal balance of axial-leaded serviceability, UL 497B certification, and 600 W surge capacity - making it preferred for industrial control panels and medical devices requiring manual assembly and safety compliance.
Availability
P6KE20AG is available at Aetrix Electronics and suitable for industrial power supplies, medical instrumentation, programmable logic controllers, and telecom line interfaces requiring stable component supply and long-term obsolescence management.
Supply support for P6KE20AG 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 P6KE20AG belongs to the P6KE6.8A Series - a family of 600 W axial-leaded TVS diodes engineered for cost-effective, reliable overvoltage protection in harsh industrial and medical environments.
FAQ
What is the maximum clamping voltage of the P6KE20AG under surge conditions?
The P6KE20AG has a maximum clamping voltage (VC) of 27.7 V when subjected to its rated peak pulse current of 22 A (1 ms exponential decay waveform per Figure 4). This value is guaranteed across temperature and production lot, ensuring predictable overvoltage limiting for protected circuitry in the P6KE20AG design.
Is the P6KE20AG RoHS compliant and lead-free?
Yes, the "G" suffix in P6KE20AG explicitly denotes a Pb-free Surmetic-40 package compliant with RoHS Directive 2011/65/EU. The device uses lead-free terminations and halogen-free molding compound, verified per ON Semiconductor's Pb-Free Packaging Standard and documented in their Soldering and Mounting Techniques Reference Manual.
Does the P6KE20AG have UL recognition for safety-critical applications?
Yes, the P6KE20AG carries UL 497B recognition (File #E210057, Category QVGQ2) for isolated loop circuit protection. This certification covers dielectric withstand, endurance conditioning, and strike voltage breakdown testing - confirming suitability for telecom, industrial control, and medical systems requiring third-party safety validation.
How does the P6KE20AG differ from bidirectional TVS diodes like P6KE20CA?
The P6KE20AG is unidirectional and functions only during positive transients on its cathode, while P6KE20CA provides symmetrical clamping for both polarities. Unidirectional operation gives the P6KE20AG lower leakage (<5 µA) and tighter VBR tolerance - ideal for DC-biased lines where reverse conduction must be avoided.
What is the thermal resistance and steady-state power rating of the P6KE20AG?
The P6KE20AG 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 with 3/8″ lead length. Derating begins at 50 mW/°C above 50°C lead temperature, per Figure 5 in the official datasheet for the P6KE20AG.
P6KE20AG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- T-18, Axial
- Series:
- -
- Packaging:
- Bulk
- 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
P6KE20AG FAQ
1.How can I place an order for P6KE20AG through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE20AG 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 P6KE20AG reliable?
The price and inventory of P6KE20AG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE20AG is usually 5 days.
3.What payment methods are accepted for P6KE20AG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE20AG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE20AG?
P6KE20AG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE20AG 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 P6KE20AG?
For technical support, including P6KE20AG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE20AG requirements.
6.How does Aetrix verify that P6KE20AG is sourced from the original manufacturer or authorized distributors?
All P6KE20AG 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 P6KE20AG meets industry standards.
7.What is the process for return or replacement of P6KE20AG?
All P6KE20AG units undergo pre-shipment inspection (PSI). If there is an issue with P6KE20AG, 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 P6KE20AG part is unused and in its original packaging.
Return procedure for P6KE20AG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE20AG Tags
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