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onsemi 1N6283ARL4
- Part No.:
- 1N6283ARL4
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1N6283ARL4.pdf
- Description:
- TVS DIODE 28.2VWM 45.7VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:8,391
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Product details
Overview
1N6283ARL4 from ON Semiconductor is a unidirectional 1500 W Mosorb transient voltage suppressor (TVS) diode in axial leaded Surmetic plastic package (Case 41A), designed for parallel clamping protection of sensitive electronics. It features a 28.2 V working peak reverse voltage (VRWM), 33 V breakdown voltage (VBR) at 1 mA, and clamps to ≤45.7 V at 33 A peak pulse current (IPP), making it suitable for protecting power supply inputs and communication line interfaces against ESD and lightning-induced surges.
For engineers reviewing the 1N6283ARL4 datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage margin relative to protected IC's absolute maximum rating, VRWM alignment with steady-state DC bus voltage, surge current capability under IEC 61000-4-5 waveforms, and UL 497B recognition for isolated loop circuit protection.
Technical Context
This device operates as a voltage-clamping Zener-based TVS, triggered when transient voltage exceeds its breakdown threshold (VBR = 31.4–34.7 V). Its low dynamic impedance and sub-nanosecond response time enable rapid suppression of fast-rising transients while maintaining stable clamping performance across temperature and pulse repetition.
The 1N6283ARL4 is rated for 1500 W nonrepetitive peak pulse power (1 ms, 10/1000 µs waveform), with thermal resistance of 20 °C/W junction-to-lead and a maximum operating junction temperature of +175 °C. It complies with UL 497B for isolated loop circuit protection and carries Class 3 (>16 kV) ESD rating per Human Body Model.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 28.2 V - Maximum continuous reverse operating voltage before clamping begins; must exceed system DC rail voltage to avoid leakage-related power loss. |
| VBR @ IT=1 mA | 31.4–34.7 V - Breakdown voltage range defining turn-on threshold; ensures reliable triggering above normal operating voltage but below protected IC's damage threshold. |
| VC @ IPP=33 A | ≤45.7 V - Clamping voltage during 1500 W surge; determines maximum stress imposed on downstream components during transient events. |
| IPP | 33 A - Peak pulse current at which VC is specified; correlates directly with IEC 61000-4-5 Level 3/4 surge immunity capability. |
| Leakage @ VRWM | <5 µA - Reverse leakage current at rated VRWM; ensures minimal standby power draw and no interference with high-impedance signal paths. |
| Response Time | <1 ns - Time from transient onset to clamping activation; critical for protecting nanosecond-scale logic and high-speed interface ICs. |
| UL Recognition | UL 497B QVGV2 - Certified for use in isolated loop circuits including telecom and industrial fieldbus applications requiring safety-compliant surge protection. |
Pinout & Package
1N6283ARL4 uses an axial-leaded plastic package (ON Semiconductor Case 41A), with cathode identified by a polarity band. Leads are tin-plated, solderable up to 230 °C for 10 seconds at 1/16 inch from case body. Mounting position is unrestricted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink during reverse-biased clamping | Connected to ground or low-impedance return path to shunt surge energy away from protected circuitry. |
| Cathode | High-voltage input node during clamping | Connected to the line or rail requiring protection; polarity band marks this terminal for correct orientation in PCB layout. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Enables robust protection against IEC 61000-4-5 10/1000 µs surges up to 33 A without degradation or failure. |
| UL 497B recognition | Validates suitability for safety-critical isolated loop circuits in telecom, process control, and medical equipment. |
| Class 3 HBM ESD rating | Provides >16 kV electrostatic discharge immunity, eliminating need for additional discrete ESD protection on board-level interfaces. |
| Low zener impedance | Maintains tight clamping voltage tolerance under varying surge currents, ensuring predictable overvoltage limiting for downstream ICs. |
| Pb-free external lead finish | Complies with RoHS Directive 2011/65/EU and JEDEC J-STD-609A standard for lead-free soldering compatibility. |
Applications
| Industrial Power Supply Input Protection | RS-485/422 Communication Line Protection |
|---|---|
Use Scenario: Installed across AC/DC converter DC output rails to absorb load dump spikes and switching noise. IC Role / Device Role / Timing Role: Voltage-clamping TVS diode placed in parallel with regulated output to limit transient overvoltage before reaching downstream regulators and microcontrollers. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V logic ICs by clamping surges to ≤45.7 V while sustaining 1500 W peak power without failure. | Use Scenario: Mounted at RS-485 transceiver terminals to suppress ESD events and induced lightning surges on long cable runs. IC Role / Device Role / Timing Role: Unidirectional clamping element referenced to local ground, absorbing positive-going transients on differential data lines. Use Value: Maintains signal integrity by limiting common-mode voltage excursions beyond ±15 V, preserving transceiver functionality per TIA-485-A specification. |
| Medical Equipment Patient Interface Protection | Programmable Logic Controller (PLC) Digital I/O Protection |
Use Scenario: Integrated into isolated sensor interface modules where patient-connected circuits require reinforced insulation and surge immunity. IC Role / Device Role / Timing Role: Primary transient suppressor on secondary-side signal lines downstream of isolation barrier, certified to UL 497B for isolated loop compliance. Use Value: Meets IEC 60601-1 collateral standard for surge immunity in medical devices while enabling compact, cost-effective design without external isolation transformers. | Use Scenario: Applied to digital input channels of industrial PLCs exposed to inductive load switching transients from solenoids and contactors. IC Role / Device Role / Timing Role: Fast-response clamping diode connected between input line and chassis ground to divert inductive kickback energy. Use Value: Extends mean time between failures (MTBF) of optocoupler input stages by limiting voltage stress to <45.7 V during 33 A surge events, reducing field returns. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ33A | Surface-mount SMC package (DO-214AB); lower 600 W peak power; VRWM = 33 V; VC = 53.3 V @ 11.3 A | Requires PCB redesign for SMT placement; less robust for high-energy surges but enables denser layouts | Select SMBJ33A only when board space constraints prohibit axial-leaded components and surge requirements are limited to IEC 61000-4-2 ESD or low-energy transients. |
| 1.5KE33A | Same die, identical electrical specs, and UL 497B recognition; differs only in ON Semiconductor part numbering convention and tape-and-reel packaging format | No functional or application difference; direct form-fit-function replacement with same axial leaded Case 41A package | Choose 1.5KE33A when sourcing from distributors listing that part number; electrically and mechanically interchangeable with 1N6283ARL4. |
Compared with SMBJ33A, the 1N6283ARL4 delivers 2.5× higher surge energy handling and lower clamping voltage at rated current, while 1.5KE33A offers identical protection performance in the same axial package-making it a seamless drop-in alternative for continuity or dual-sourcing strategies.
Availability
1N6283ARL4 is available at Aetrix Electronics and suitable for industrial power supplies, RS-485 communication systems, and medical equipment requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 1N6283ARL4 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 onsemi) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The 1N6283ARL4 belongs to the 1N6267A Series of Mosorb transient voltage suppressors, 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 1N6283ARL4 at its rated peak pulse current?
The 1N6283ARL4 has a maximum clamping voltage (VC) of 45.7 V when subjected to its rated peak pulse current (IPP) of 33 A, measured using the standard 10/1000 µs double-exponential surge waveform. This value defines the upper voltage limit imposed on protected circuitry during worst-case transient events and is verified per ON Semiconductor's test conditions in the 1N6267A Series datasheet Rev. 6.
Is the 1N6283ARL4 RoHS compliant and lead-free?
Yes, the 1N6283ARL4 features a Pb-free external lead finish compliant with RoHS Directive 2011/65/EU and JEDEC J-STD-609A. The device is manufactured using ON Semiconductor's Surmetic axial-leaded plastic package with tin-plated leads, rated for soldering at 230 °C for 10 seconds at 1/16 inch from the case body-ensuring compatibility with modern lead-free reflow and hand-soldering processes.
Does the 1N6283ARL4 meet UL safety standards for circuit protection?
Yes, the 1N6283ARL4 is UL recognized under standard UL 497B (File #116110, Category QVGV2) for isolated loop circuit protection. This certification confirms successful completion of rigorous tests including strike voltage breakdown, endurance conditioning, dielectric withstand, and discharge testing-validating its use in safety-critical applications such as telecom interfaces, industrial controllers, and medical equipment signal isolation barriers.
How does the 1N6283ARL4 differ from the 1.5KE33A variant?
The 1N6283ARL4 and 1.5KE33A share identical electrical specifications, thermal characteristics, mechanical package (Case 41A), and UL 497B recognition. They originate from the same silicon die and manufacturing process. The distinction lies solely in ON Semiconductor's internal part numbering system and packaging format-1.5KE33A denotes the same device in bulk or tape-and-reel configuration without the "RL4" suffix, making them functionally and physically interchangeable in all applications.
What is the maximum working peak reverse voltage (VRWM) for the 1N6283ARL4?
The maximum working peak reverse voltage (VRWM) for the 1N6283ARL4 is 28.2 V. This parameter represents the highest continuous DC or repetitive peak reverse voltage the device can withstand without entering avalanche conduction. Designers must ensure VRWM exceeds the maximum steady-state voltage of the protected line-such as a 24 V DC bus-to prevent excessive leakage current and thermal stress during normal operation.
1N6283ARL4 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):
- 28.2V
- Voltage - Breakdown (Min):
- 31.4V
- Voltage - Clamping (Max) @ Ipp:
- 45.7V
- 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
1N6283ARL4 FAQ
1.How can I place an order for 1N6283ARL4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6283ARL4 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 1N6283ARL4 reliable?
The price and inventory of 1N6283ARL4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6283ARL4 is usually 5 days.
3.What payment methods are accepted for 1N6283ARL4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6283ARL4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6283ARL4?
1N6283ARL4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6283ARL4 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 1N6283ARL4?
For technical support, including 1N6283ARL4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6283ARL4 requirements.
6.How does Aetrix verify that 1N6283ARL4 is sourced from the original manufacturer or authorized distributors?
All 1N6283ARL4 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 1N6283ARL4 meets industry standards.
7.What is the process for return or replacement of 1N6283ARL4?
All 1N6283ARL4 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6283ARL4, 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 1N6283ARL4 part is unused and in its original packaging.
Return procedure for 1N6283ARL4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6283ARL4 Tags
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