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onsemi P6KE6.8AG
- Part No.:
- P6KE6.8AG
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- T-18, Axial
- Datasheet:
-
P6KE6.8AG.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:245,225
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Product details
Overview
P6KE6.8AG from ON Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in axial lead Surmetic-40 package, designed for parallel clamping of high-energy transients. It delivers 600 W peak pulse power at 1 ms, clamps to 10.5 V at 57 A peak pulse current, and maintains ≤5 µA leakage above 10 V. It is used in power supplies, medical equipment, and industrial controls to protect sensitive ICs from ESD and surge events.
For engineers reviewing the P6KE6.8AG datasheet, pinout, applications, or equivalent options, key selection criteria include working peak reverse voltage (5.8 V), clamping voltage (10.5 V @ 57 A), response time (<1 ns), UL 497B recognition for isolated loop protection, and Pb-free axial lead packaging compatible with standard through-hole reflow and hand-soldering processes.
Technical Context
The P6KE6.8AG operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its 6.45–7.14 V breakdown range (measured at 10 mA test current). Its clamping action limits transient-induced overvoltage to ≤10.5 V under 57 A 1 ms pulses, with thermal resistance of 20 °C/W from junction to lead.
It exhibits <1 ns response time due to low junction capacitance and minimal intrinsic inductance, and is rated for −55 °C to +150 °C operating temperature. UL 497B recognition confirms compliance for isolated loop circuit protection in telecom and industrial interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600 W @ 1 ms - sustains single high-energy surges without failure |
| Working Peak Reverse Voltage | 5.8 V - maximum continuous reverse bias before conduction begins |
| Breakdown Voltage | 6.45–7.14 V @ 10 mA - precise avalanche initiation threshold |
| Clamping Voltage | 10.5 V @ 57 A IPP - maximum voltage seen by protected circuit during worst-case surge |
| Leakage Current | <5 µA @ VRWM - negligible standby power loss and signal integrity impact |
| Response Time | <1 ns - enables suppression before downstream logic or analog circuits are damaged |
| ESD Rating | Class 3 (>16 kV HBM) - meets IEC 61000-4-2 Level 4 system-level ESD immunity |
Pinout & Package
Surmetic-40 axial lead package (Case 017AA), Pb-free, void-free thermosetting plastic body with corrosion-resistant leads. Cathode indicated by band; mounting position unrestricted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to ground or low-impedance return path in unidirectional clamp configuration |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., DC input, signal rail); polarity band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| UL 497B Recognition | Validated for isolated loop circuit protection per QVGQ2 file #E210057 - supports safety-certified designs without additional external validation |
| 600 W Surge Capability | Withstands IEC 61000-4-5 4 kV/2 Ω combination wave surges without degradation |
| Low Clamping Ratio | VC/VRWM = 10.5/5.8 ≈ 1.81 - tight voltage margin preserves headroom for downstream 5 V or 3.3 V ICs |
| Pb-Free Axial Lead | RoHS-compliant Surmetic-40 package - compatible with lead-free soldering (260 °C, 10 s) |
Applications
| Industrial Power Supply Protection | Medical Equipment Input Stage |
|---|---|
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 clamping device placed directly across input terminals to limit surge voltage to safe levels before DC-DC converter input stage. Use Value: Prevents damage to upstream rectifier diodes and downstream buck controller ICs by clamping transients to ≤10.5 V while dissipating up to 600 W peak energy. | Use Scenario: Patient-connected sensor interface in portable ECG monitor subjected to ESD discharge per IEC 61000-4-2. IC Role / Device Role / Timing Role: Primary ESD protection element on analog front-end supply line, positioned adjacent to connector entry point. Use Value: Absorbs >16 kV HBM ESD pulses within <1 ns, limiting voltage overshoot to <10.5 V and preserving signal integrity of low-noise amplifier inputs. |
| Telecom Line Interface | Process Control Signal Conditioning |
Use Scenario: RS-485 data line in industrial gateway unit operating in electrically noisy factory environments. IC Role / Device Role / Timing Role: Unidirectional TVS on VCC-to-ground path for isolated RS-485 transceiver power domain. Use Value: Complies with UL 497B for isolated loop protection, enabling certified surge immunity up to 4 kV common-mode without compromising galvanic isolation integrity. | Use Scenario: 4–20 mA current loop transmitter output stage interfacing with PLC analog input card. IC Role / Device Role / Timing Role: Secondary overvoltage clamp on loop supply rail, coordinated with primary Zener regulator. Use Value: Provides redundant protection against wiring faults and field-induced transients, ensuring loop remains operational even after repeated 600 W surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.8A | Surface-mount SMB package; same 6.8 V nominal breakdown but 600 W rating at 10/1000 µs waveform; lower clamping voltage (11.2 V @ 53.3 A) | Requires PCB redesign for SMT placement; better suited for space-constrained, high-density layouts | Select SMBJ6.8A when board real estate is limited and automated assembly is preferred over through-hole insertion. |
| 1.5KE6.8A | Same axial package but higher 1500 W peak power rating; clamps at 10.5 V @ 143 A; wider VRWM range (5.8–6.2 V) | Over-spec'd for typical 600 W surge requirements; higher cost and larger physical footprint than needed | Select 1.5KE6.8A only when legacy systems require backward compatibility with 1.5 kW-rated designs or when multi-pulse stress testing demands higher margin. |
Compared with SMBJ6.8A and 1.5KE6.8A, the P6KE6.8AG offers optimal balance of proven reliability in axial lead form, UL 497B certification for isolated loops, and precise 600 W surge handling-making it ideal for cost-sensitive, safety-certified industrial and medical power rail protection where through-hole assembly is standard.
Availability
P6KE6.8AG is available at Aetrix Electronics and suitable for industrial power supplies, medical diagnostic equipment, telecom infrastructure, and process control systems requiring stable component supply and long-term lifecycle support.
Supply support for P6KE6.8AG 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 P6KE6.8AG belongs to ON Semiconductor's Surmetic-40 TVS diode family, engineered specifically for robust, cost-effective overvoltage protection in high-reliability industrial and medical systems where axial lead mechanical stability and safety certification are critical.
FAQ
What is the breakdown voltage tolerance of the P6KE6.8AG?
The P6KE6.8AG has a specified breakdown voltage range of 6.45 V to 7.14 V at 10 mA test current (IT), corresponding to a ±5% nominal tolerance around the 6.8 V rating. This range is verified per ON Semiconductor's P6KE6.8A Series datasheet Rev. 10 and ensures consistent clamping behavior across production lots. The P6KE6.8AG maintains this specification under standard test conditions at TA = 25°C.
Does the P6KE6.8AG meet UL 497B requirements?
Yes, the P6KE6.8AG is UL Recognized under File #E210057, Category QVGQ2, for protector applications per UL 497B. This certification covers surge withstand, dielectric voltage-withstand, endurance conditioning, and temperature testing - confirming suitability for isolated loop circuits in telecom and industrial interfaces. The P6KE6.8AG shares this qualification with the full P6KE6.8A–P6KE200A series.
What is the maximum clamping voltage for the P6KE6.8AG at rated peak pulse current?
The P6KE6.8AG clamps to a maximum of 10.5 V at its rated peak pulse current of 57 A (1 ms exponential waveform per Figure 4). This value is guaranteed across the operating temperature range and forms the basis for protected circuit voltage margining. The P6KE6.8AG achieves this performance with a clamping ratio of ~1.81 relative to its 5.8 V VRWM, supporting reliable protection of 5 V and 3.3 V logic rails.
Is the P6KE6.8AG RoHS compliant and lead-free?
Yes, the 'G' suffix in P6KE6.8AG explicitly denotes a Pb-free Surmetic-40 axial lead package compliant with RoHS Directive 2011/65/EU. Its leads are readily solderable using standard lead-free reflow profiles, with maximum soldering temperature of 260 °C at 1/16″ from case for 10 seconds. The P6KE6.8AG meets ON Semiconductor's Pb-free packaging standards as documented in SOLDERRM/D reference manual.
How does the P6KE6.8AG compare to bidirectional TVS diodes in surge protection?
The P6KE6.8AG is unidirectional and optimized for DC power rail protection where polarity is fixed - offering lower leakage (<5 µA) and tighter clamping than equivalent bidirectional parts. Unlike bidirectional TVS diodes, it does not conduct on positive transients, making it unsuitable for AC or differential signal lines. For DC applications like power supplies or sensor VCC rails, the P6KE6.8AG provides superior efficiency and noise immunity compared to bidirectional alternatives.
P6KE6.8AG 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):
- 5.8V
- Voltage - Breakdown (Min):
- 6.45V
- Voltage - Clamping (Max) @ Ipp:
- 10.5V
- Current - Peak Pulse (10/1000µs):
- 57A
- 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
P6KE6.8AG FAQ
1.How can I place an order for P6KE6.8AG through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE6.8AG 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 P6KE6.8AG reliable?
The price and inventory of P6KE6.8AG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE6.8AG is usually 5 days.
3.What payment methods are accepted for P6KE6.8AG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE6.8AG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE6.8AG?
P6KE6.8AG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE6.8AG 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 P6KE6.8AG?
For technical support, including P6KE6.8AG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE6.8AG requirements.
6.How does Aetrix verify that P6KE6.8AG is sourced from the original manufacturer or authorized distributors?
All P6KE6.8AG 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 P6KE6.8AG meets industry standards.
7.What is the process for return or replacement of P6KE6.8AG?
All P6KE6.8AG units undergo pre-shipment inspection (PSI). If there is an issue with P6KE6.8AG, 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 P6KE6.8AG part is unused and in its original packaging.
Return procedure for P6KE6.8AG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE6.8AG Tags
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