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onsemi 1N6286ARL4
- Part No.:
- 1N6286ARL4
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1N6286ARL4.pdf
- Description:
- TVS DIODE 36.8VWM 59.3VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:6,484
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Product details
Overview
1N6286ARL4 from ON Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) diode designed for parallel clamping protection of sensitive electronics against high-energy transients. It features a 36.8 V working peak reverse voltage (VRWM), 43 V breakdown voltage (VBR) at 1 mA, and clamps to 59.3 V at 25.3 A peak pulse current (IPP), making it suitable for industrial power supply input stage surge protection.
For engineers reviewing the 1N6286ARL4 datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage margin relative to protected IC's absolute maximum rating, VRWM alignment with DC bus voltage, UL 497B recognition for isolated loop circuits, and axial leaded Surmetic package compatibility with through-hole PCB layouts.
Technical Context
This device operates as a voltage-clamping avalanche diode in reverse-biased configuration, triggered when transient voltage exceeds its specified VBR. Its low dynamic impedance ensures stable clamping under fast-rising surges (typically <1 ns response time), while its 1500 W peak power rating supports 1 ms non-repetitive pulses per Figure 5.
The 1N6286ARL4 is rated for operation from −65°C to +175°C junction temperature, with thermal resistance of 20°C/W (junction-to-lead), and exhibits ≤5 µA leakage current above 10 V. It carries UL 497B recognition for isolated loop circuit protection and meets Class 3 ESD immunity (>16 kV HBM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500 W @ 1 ms - sustains single high-energy surges without failure |
| Working Peak Reverse Voltage (VRWM) | 36.8 V - maximum continuous DC or peak AC voltage before clamping initiates |
| Breakdown Voltage (VBR) | 43 V @ 1 mA - precise avalanche onset threshold for reliable triggering |
| Clamping Voltage (VC) | 59.3 V @ 25.3 A IPP - maximum voltage seen by protected circuit during surge |
| Leakage Current (IR) | <5 µA @ VRWM - negligible standby power loss and signal interference |
| Response Time | <1 ns - limits voltage overshoot during fast transients (e.g., EFT, lightning-induced spikes) |
| UL Recognition | UL 497B (QVGV2) - certified for use in isolated loop telecom and industrial control protection |
Pinout & Package
Package: Axial-leaded Surmetic plastic case (Case 41A), void-free transfer-molded thermosetting material, cathode indicated by polarity band, lead finish Pb-free, max soldering temperature 230°C at 1/16″ from case for 10 s.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to circuit ground or lowest potential node in unidirectional clamp configuration |
| Cathode | High-side transient sink terminal | Connected to protected line (e.g., DC input rail); conducts surge current to ground during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Enables robust protection against IEC 61000-4-5 Level 4 (4 kV/2 Ω) surges without derating |
| UL 497B recognition | Validates suitability for safety-critical isolated loop interfaces in telecom and process control systems |
| Class 3 ESD immunity (>16 kV HBM) | Provides built-in handling robustness during assembly and field service without external ESD safeguards |
| Low zener impedance & fast response | Minimizes clamping overshoot and ensures predictable voltage limiting across wide frequency spectra |
| Pb-free lead finish | Complies with RoHS Directive 2011/65/EU and JEDEC J-STD-609A standard for green manufacturing |
Applications
| Industrial Power Supply Input Protection | Telecom Line Interface Protection |
|---|---|
Use Scenario: 48 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 clamping element placed across input rails to shunt surge energy to ground before reaching downstream regulators and microcontrollers. Use Value: Limits transient voltage to 59.3 V, staying safely below 60 V absolute maximum rating of common 48 V-input DC/DC controllers. |
Use Scenario: Primary-side protection on RS-485 or T1/E1 interface lines in base station remote units subject to lightning-induced surges. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor referenced to isolated ground plane, compliant with UL 497B for loop-powered circuits. Use Value: Provides certified isolation barrier protection with <1 ns response, preventing latch-up or damage to differential line drivers/receivers. |
| Medical Equipment AC/DC Adapter Input | Automotive Aftermarket Diagnostic Tool Power Input |
Use Scenario: Mains-connected AC/DC adapter for patient monitoring equipment requiring reinforced insulation and surge immunity per IEC 60601-1. IC Role / Device Role / Timing Role: First-line TVS on secondary-side DC output (24 V rail) to absorb coupling transients from primary-side switching noise or ESD events. Use Value: Maintains <5 µA leakage at 36.8 V VRWM, avoiding drift in precision analog front-end bias networks. |
Use Scenario: 12 V vehicle battery input of handheld OBD-II scanner subjected to load dump (ISO 7637-2 Pulse 5a) and jump-start voltage spikes. IC Role / Device Role / Timing Role: Axial-leaded TVS mounted directly at connector entry point to minimize trace inductance and overshoot. Use Value: Withstands 1500 W peak power at 1 ms, meeting automotive-grade surge endurance without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ43A | Surface-mount SMB package (vs. axial leaded); 43 V VBR, 64.5 V VC @ 23.2 A; lower 600 W PPK | Requires PCB re-layout; suited for space-constrained consumer electronics, not high-power industrial rails | Select when board space is limited and surge energy is ≤600 W; verify thermal pad layout for 23.2 A pulse handling |
| 1.5KE43A | Same die, identical electrical specs (VBR = 43 V, VC = 59.3 V, PPK = 1500 W), but in bulk box packaging (not tape & reel) | No functional difference; differs only in logistics format - no change to circuit design or performance | Choose for manual assembly or low-volume prototyping where tape-and-reel automation is unnecessary |
Compared with SMBJ43A, the 1N6286ARL4 delivers higher surge energy handling and axial-leaded mechanical robustness for industrial environments; compared with 1.5KE43A, it offers identical protection performance with automated SMT-compatible tape-and-reel delivery for high-volume production.
Availability
1N6286ARL4 is available at Aetrix Electronics and suitable for industrial power supplies, telecom infrastructure equipment, medical AC/DC adapters, and automotive diagnostic tools requiring stable component supply and long-term obsolescence management.
Supply support for 1N6286ARL4 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 manufacturer specializing in energy-efficient power, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and medical markets.
The 1N6286ARL4 belongs to the 1N6267A Series Mosorb TVS family, engineered specifically for high-reliability, high-surge-capability protection of voltage-sensitive components in harsh electromagnetic environments.
FAQ
What is the clamping voltage of the 1N6286ARL4 at its rated peak pulse current?
The 1N6286ARL4 clamps to 59.3 V at its specified peak pulse current of 25.3 A (IPP), measured per the 1 ms exponential waveform defined in Figure 5 of the datasheet. This value defines the maximum voltage imposed on protected circuitry during a full-rated surge event and must be verified against the absolute maximum ratings of downstream components in the 1N6286ARL4 application.
Is the 1N6286ARL4 RoHS-compliant and lead-free?
Yes, the 1N6286ARL4 uses a Pb-free external lead finish, conforming to RoHS Directive 2011/65/EU and JEDEC J-STD-609A standards. The device is manufactured in ON Semiconductor's Surmetic axial-leaded plastic package (Case 41A) with corrosion-resistant, readily solderable leads rated for 230°C for 10 seconds at 1/16 inch from the case - fully compatible with lead-free reflow and wave soldering processes used for the 1N6286ARL4.
Does the 1N6286ARL4 have UL recognition, and for what standard?
The 1N6286ARL4 carries UL 497B recognition under file #116110, specifically certified for use in protectors (QVGV2 category) in isolated loop circuits. This validation covers tests including strike voltage breakdown, endurance conditioning, dielectric withstand, and discharge performance - confirming its suitability for telecom, process control, and other safety-critical applications where the 1N6286ARL4 serves as primary surge protection.
How does the 1N6286ARL4 differ from bidirectional TVS diodes like 1.5KE43CA?
The 1N6286ARL4 is unidirectional and protects only against positive transients on the cathode line relative to anode (ground), whereas 1.5KE43CA provides symmetrical clamping for both polarities. The 1N6286ARL4 has lower leakage and higher surge capability in its intended direction but cannot suppress negative-going surges - making it ideal for DC rail protection where polarity is fixed, unlike AC or differential line applications requiring the 1.5KE43CA variant.
What is the thermal resistance and maximum operating temperature of the 1N6286ARL4?
The 1N6286ARL4 has a junction-to-lead thermal resistance (RJL) of 20°C/W and is rated for continuous operation from −65°C to +175°C junction temperature. Its steady-state power dissipation is 5.0 W at lead temperature (TL) ≤ 75°C, derating linearly above that point - critical for thermal design when the 1N6286ARL4 is deployed in enclosed industrial enclosures or high-ambient-temperature environments.
1N6286ARL4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- DO-201AD, Axial
- Series:
- Mosorb™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 36.8V
- Voltage - Breakdown (Min):
- 40.9V
- Voltage - Clamping (Max) @ Ipp:
- 59.3V
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
1N6286ARL4 FAQ
1.How can I place an order for 1N6286ARL4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6286ARL4 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 1N6286ARL4 reliable?
The price and inventory of 1N6286ARL4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6286ARL4 is usually 5 days.
3.What payment methods are accepted for 1N6286ARL4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6286ARL4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6286ARL4?
1N6286ARL4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6286ARL4 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 1N6286ARL4?
For technical support, including 1N6286ARL4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6286ARL4 requirements.
6.How does Aetrix verify that 1N6286ARL4 is sourced from the original manufacturer or authorized distributors?
All 1N6286ARL4 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 1N6286ARL4 meets industry standards.
7.What is the process for return or replacement of 1N6286ARL4?
All 1N6286ARL4 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6286ARL4, 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 1N6286ARL4 part is unused and in its original packaging.
Return procedure for 1N6286ARL4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6286ARL4 Tags
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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