My Inquiry
My Account
onsemi P6KE6.8ARL
- Part No.:
- P6KE6.8ARL
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- Axial
- Datasheet:
-
P6KE6.8ARL.pdf
- Description:
- TVS ZENER UNIDIR 600W 6.8V AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:3,593
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6KE6.8ARL from ON Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in axial-leaded Surmetic-40 package, designed for parallel clamping of voltage transients on DC power rails and signal lines. It features 600 W peak pulse power (1 ms), 5.8 V working peak reverse voltage (VRWM), 10.5 V maximum clamping voltage at 57 A peak pulse current (VC @ IPP), and <1 ns response time - used to protect power supplies, medical equipment, and industrial controls from ESD and surge events.
For engineers reviewing the P6KE6.8ARL datasheet, pinout, applications, or equivalent options, key selection criteria include VRWM matching system operating voltage, VC margin relative to IC absolute maximum ratings, thermal derating above 25°C ambient, and UL 497B certification for isolated loop protection compliance.
Technical Context
The P6KE6.8ARL operates as a silicon avalanche diode with precisely controlled breakdown behavior: VBR = 6.45–7.14 V at IT = 10 mA, enabling reliable clamping onset just above nominal 5 V rail voltages. Its unidirectional polarity requires cathode-to-rail connection for positive transient suppression.
Thermal design relies on junction-to-lead resistance (RJL = 20 °C/W) and steady-state power dissipation (PD = 5.0 W at TL ≤ 25°C), with linear derating above 50°C. Surge capability is validated per non-repetitive 1 ms pulse (Figure 4) and duty-cycle-limited 8.3 ms half-sine wave (IFSM = 100 A).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600 W @ 1 ms - withstands high-energy lightning-induced surges per IEC 61000-4-5 Level 4 without failure |
| Working Peak Reverse Voltage | 5.8 V - sets minimum system operating voltage threshold before clamping activates |
| Clamping Voltage | 10.5 V @ 57 A IPP - defines maximum voltage seen by protected IC during worst-case transient |
| Breakdown Voltage | 6.45–7.14 V @ 10 mA - ensures stable, repeatable avalanche onset within 5 V ±10% supply tolerance |
| Response Time | <1 ns - limits voltage overshoot during fast-rising ESD events (IEC 61000-4-2) |
| ESD Rating | Class 3 (>16 kV HBM) - meets industrial-grade electrostatic discharge immunity requirements |
| UL Recognition | UL 497B certified - qualified for isolated loop circuit protection in telecom and process control systems |
Pinout & Package
Surmetic-40 axial-leaded plastic package (Case 017AA), cathode indicated by band. Leads are solderable per 260°C/10 s at 1/16″ from case. Mounting position unrestricted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path | Connected to ground or low-impedance reference; completes clamping current loop during overvoltage |
| Cathode | Protected line interface | Connected to input rail or signal line; blocks normal operation current but conducts during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Low clamping ratio (VC/VRWM ≈ 1.81) | Minimizes voltage stress on downstream 5 V logic while maintaining robust surge margin |
| Temperature coefficient of VBR = 0.057 %/°C | Ensures predictable breakdown shift across −55°C to +150°C operating range |
| Leakage current < 1000 nA @ VRWM | Prevents measurable power loss or signal distortion in always-on monitoring circuits |
| Pb-free tape-and-reel packaging (RLG suffix variant) | Supports automated SMT assembly with RoHS-compliant reflow profiles |
| UL 497B isolation loop certification | Validates suitability for telecom line interface protection without additional barrier components |
Applications
| Industrial Power Supply Protection | Medical Equipment Input Stage |
|---|---|
Use Scenario: 5 V DC input rail of programmable logic controller (PLC) power module exposed to inductive switching transients from relay coils. IC Role / Device Role / Timing Role: Unidirectional TVS clamps positive-going surges to ≤10.5 V, preventing latch-up or gate oxide damage in upstream DC/DC controller ICs. Use Value: Enables compliance with IEC 61000-4-4 electrical fast transient (EFT) immunity at 4 kV, reducing field failure rate by >99% vs. unprotected design. | Use Scenario: Patient-connected sensor interface in portable ECG monitor, where microvolt-level analog signals must remain undisturbed during hospital-grade ESD events. IC Role / Device Role / Timing Role: Front-end TVS absorbs 15 kV HBM discharges before they couple into instrumentation amplifier input stage. Use Value: Maintains signal integrity with <100 nA leakage at 5.8 V, avoiding baseline drift or false arrhythmia detection. |
| Telecom Line Interface | Automated Test Equipment (ATE) |
Use Scenario: RS-485 data line in building automation node subjected to induced surges from nearby AC mains wiring. IC Role / Device Role / Timing Role: Bidirectional protection not required; unidirectional P6KE6.8ARL placed on VCC side to clamp common-mode overvoltage relative to ground. Use Value: UL 497B certification confirms suitability for isolated loop protection, eliminating need for external isolation transformers in Class 2 circuits. | Use Scenario: 5 V digital control bus in semiconductor wafer prober, exposed to repeated contact bounce and relay switching noise. IC Role / Device Role / Timing Role: TVS suppresses repetitive 100 ns rise-time transients generated by mechanical relay actuation in test head. Use Value: 600 W peak power rating supports >10,000 surge cycles without parameter drift, extending calibration interval by 3×. |
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 (vs. axial lead); same VRWM (5.8 V), slightly higher VC (11.2 V @ 53.3 A) | Requires PCB layout change; better suited for high-density, automated assembly | Select when board space is constrained and reflow compatibility is prioritized over through-hole serviceability |
| 1.5KE6.8A | Higher peak power (1500 W), larger DO-201 package; identical VRWM/VC specs and axial lead form factor | Over-spec'd for 600 W requirement; adds cost and footprint without functional benefit | Select only if legacy 1.5KE footprint exists or future-proofing against higher surge levels is mandated |
Compared with SMBJ6.8A and 1.5KE6.8A, the P6KE6.8ARL delivers optimal balance of proven 600 W surge handling, axial-leaded serviceability, UL 497B certification, and cost efficiency for mid-volume industrial power rail protection - without over-engineering or assembly complexity.
Availability
P6KE6.8ARL is available at Aetrix Electronics and suitable for industrial power supplies, medical device inputs, telecom interfaces, and automated test equipment requiring stable component supply and long-term lifecycle support.
Supply support for P6KE6.8ARL 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 energy-efficient power management, analog, sensors, and logic devices for automotive, industrial, and communications markets.
The P6KE6.8ARL belongs to the P6KE series of unidirectional TVS diodes engineered specifically for cost-sensitive, high-reliability transient suppression in industrial and medical power systems - emphasizing UL-certified isolation loop compliance and robust 1 ms surge endurance.
FAQ
What is the maximum clamping voltage of the P6KE6.8ARL under surge conditions?
The P6KE6.8ARL has a maximum clamping voltage (VC) of 10.5 V when subjected to its rated peak pulse current (IPP) of 57 A, measured using the standard 1 ms exponential waveform defined in Figure 4 of the datasheet. This value ensures protected circuits remain below critical 12 V absolute maximum thresholds commonly found in 5 V logic families and microcontrollers.
Does the P6KE6.8ARL meet UL safety standards for circuit protection?
Yes, the P6KE6.8ARL carries UL 497B recognition (File #E210057, QVGQ2 category) for isolated loop circuit protection - verified through strike voltage breakdown, endurance conditioning, dielectric withstand, and discharge testing. This certification applies across the full P6KE6.8A–P6KE200A series and confirms suitability for telecom and industrial safety-critical interfaces.
How does the P6KE6.8ARL differ from the P6KE6.8A variant?
The P6KE6.8ARL is identical in electrical and thermal specifications to the P6KE6.8A but supplied in 4000-piece tape-and-reel format (vs. 1000-unit box for P6KE6.8A), enabling automated pick-and-place assembly. Both share the same Surmetic-40 axial package, UL 497B certification, and Pb-free option (P6KE6.8ARLG).
What is the thermal resistance specification for the P6KE6.8ARL?
The P6KE6.8ARL has a junction-to-lead thermal resistance (RJL) of 20 °C/W, measured with 3/8″ lead length at TL ≤ 25°C. This value governs steady-state power derating: PD drops linearly from 5.0 W at 25°C to zero at 125°C lead temperature, per Figure 5 in the datasheet.
Can the P6KE6.8ARL be used for bidirectional transient suppression?
No - the P6KE6.8ARL is a unidirectional TVS diode, designed only for clamping positive transients on grounded systems. For bidirectional protection (e.g., AC lines or floating signals), a dedicated bidirectional part such as P6KE6.8CA or SMAJ6.8CA must be selected; substituting P6KE6.8ARL would leave negative transients unclamped.
P6KE6.8ARL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- Axial
- Series:
- P6KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5.8V (Max)
- 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 ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
P6KE6.8ARL FAQ
1.How can I place an order for P6KE6.8ARL through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE6.8ARL 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 P6KE6.8ARL reliable?
The price and inventory of P6KE6.8ARL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE6.8ARL is usually 5 days.
3.What payment methods are accepted for P6KE6.8ARL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE6.8ARL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE6.8ARL?
P6KE6.8ARL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE6.8ARL 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 P6KE6.8ARL?
For technical support, including P6KE6.8ARL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE6.8ARL requirements.
6.How does Aetrix verify that P6KE6.8ARL is sourced from the original manufacturer or authorized distributors?
All P6KE6.8ARL 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 P6KE6.8ARL meets industry standards.
7.What is the process for return or replacement of P6KE6.8ARL?
All P6KE6.8ARL units undergo pre-shipment inspection (PSI). If there is an issue with P6KE6.8ARL, 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 P6KE6.8ARL part is unused and in its original packaging.
Return procedure for P6KE6.8ARL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE6.8ARL Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
