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onsemi 1N6282ARL4
- Part No.:
- 1N6282ARL4
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1N6282ARL4.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:3,708
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Product details
Overview
1N6282ARL4 from ON Semiconductor is a unidirectional 1500 W Mosorb transient voltage suppressor (TVS) diode designed for parallel clamping protection of sensitive electronics against high-energy transients. It features a 25.6 V working peak reverse voltage (VRWM), 30 V breakdown voltage (VBR) at 1 mA, and clamps to 41.4 V at 36 A peak pulse current - suitable for DC power rail protection in industrial power supplies and communication interfaces.
For engineers reviewing the 1N6282ARL4 datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage margin relative to system operating voltage, surge current handling under 1 ms pulses, UL 497B recognition for isolated loop circuits, and axial lead (Case 41A) mechanical compatibility with through-hole PCB layouts.
Technical Context
This device operates as a voltage-clamping Zener-based TVS, entering avalanche conduction when transient voltage exceeds its specified VBR (30 V min). Its low dynamic impedance and sub-1 ns response time enable rapid suppression of ESD and lightning-induced surges without affecting normal circuit operation.
Rated for 1500 W non-repetitive peak pulse power at TL ≤ 25°C, it delivers 36 A peak pulse current (IPP) while maintaining clamping voltage ≤ 41.4 V. Thermal resistance junction-to-lead is 20 °C/W, supporting reliable power dissipation when mounted with ≥3/8″ lead length.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 25.6 V - maximum continuous reverse operating voltage before clamping begins; sets minimum system rail voltage margin. |
| VBR @ IT = 1 mA | 28.5–31.5 V - precise avalanche onset range; ensures predictable turn-on during overvoltage events. |
| VC @ IPP = 36 A | 41.4 V - maximum clamped voltage during 1 ms surge; defines worst-case stress on downstream ICs. |
| PPK | 1500 W - peak pulse power rating per 1 ms waveform; validates robustness against IEC 61000-4-5 Level 4 surges. |
| IR @ VRWM | < 5 µA - negligible leakage at rated working voltage; avoids standby power loss or signal distortion. |
| Response Time | < 1 ns - enables suppression before transient energy couples into protected circuitry. |
| ESD Rating | Class 3 (>16 kV HBM) - meets stringent electrostatic discharge immunity requirements for end-equipment certification. |
Pinout & Package
1N6282ARL4 uses an axial-leaded Surmetic plastic package (Case 41A), with cathode identified by a polarity band. Leads are Pb-free, solderable at 230°C for 10 seconds at 1/16″ from case. Mounting position is unrestricted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction; tied to lower-potential side of protected line. | Connects to ground or return path in unidirectional clamping configuration. |
| Cathode | Avalanche conduction terminal during reverse transient; marked with band. | Connects to protected line (e.g., +12 V rail); clamps voltage to ≤41.4 V when surge exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| UL 497B Recognition | Validated for isolated loop circuit protection - satisfies safety compliance for telecom and industrial interface designs. |
| Low Clamping Ratio (VC/VBR) | 1.38 (41.4 V / 30 V) - tight voltage control minimizes overvoltage stress on protected CMOS/MOS/Bipolar ICs. |
| Pb-Free External Lead Finish | Complies with RoHS and JEDEC J-STD-020 reflow standards - supports lead-free manufacturing without solderability compromise. |
| Surmetic Axial Package | Void-free thermosetting plastic body with corrosion-resistant leads - ensures long-term reliability in humid or chemically aggressive environments. |
Applications
| Industrial Power Supply Protection | RS-485 Communication Interface |
|---|---|
Use Scenario: Protects 24 V DC input rails in programmable logic controllers (PLCs) against load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional shunt clamp placed across input terminals, conducting only during overvoltage events. Use Value: Limits transient voltage to ≤41.4 V, preventing damage to upstream rectifiers and downstream DC-DC controllers rated for 36 V max. |
Use Scenario: Safeguards RS-485 transceivers (e.g., SN65HVD72) connected to long field wiring exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Parallel-connected TVS on differential bus lines (A/B) and common-mode line (GND), clamping common- and differential-mode spikes. Use Value: Maintains signal integrity by suppressing >1 kV transients within <1 ns, avoiding false triggering or latch-up in half-duplex transceivers. |
| Medical Equipment Power Input | Automotive Body Control Module (BCM) |
Use Scenario: Shields AC/DC adapter outputs powering patient-monitoring front-end analog circuitry from mains-borne surges. IC Role / Device Role / Timing Role: Final-stage TVS on low-noise 5 V/3.3 V supply rails, positioned immediately before LDO regulators. Use Value: Delivers Class 3 ESD immunity (>16 kV HBM) and UL 497B compliance - critical for FDA 510(k) electromagnetic compatibility validation. |
Use Scenario: Protects 12 V battery-supplied microcontroller I/O lines (e.g., LIN bus, sensor inputs) from load dump per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional clamp on each protected node, referenced to chassis ground with minimal trace inductance. Use Value: Withstands 1500 W peak pulse energy and clamps to 41.4 V - compatible with automotive-grade MCU GPIO absolute maximum ratings (typically ±45 V). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24A | Lower PPK (600 W), smaller SMC package (surface-mount), VRWM = 24 V, VC = 38.9 V @ 15.4 A. | Better suited for space-constrained PCBs; requires layout redesign due to SMD footprint and lower surge rating. | Select SMBJ24A when board area is limited and surge threat level is moderate (IEC 61000-4-5 Level 2–3). |
| 1.5KE30A | Same JEDEC family, identical electrical specs (VRWM = 25.6 V, VBR = 30 V, VC = 41.4 V), but supplied in bulk (500/unit box) not tape-and-reel. | No functional or performance difference; differs only in packaging format and ordering code. | Choose 1.5KE30A for manual assembly or low-volume prototyping where reel feeding is unnecessary. |
Compared with 1N6282ARL4, SMBJ24A trades surge capacity and through-hole compatibility for compactness, while 1.5KE30A offers identical protection performance in a different packaging format - enabling flexibility in production volume and assembly method without compromising clamping behavior or safety certification.
Availability
1N6282ARL4 is available at Aetrix Electronics and suitable for industrial power supplies, RS-485 communication interfaces, and medical equipment requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 1N6282ARL4 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, sensors, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The 1N6267A Series belongs to onsemi's Mosorb TVS portfolio, engineered specifically for high-reliability transient suppression in harsh environments - emphasizing UL 497B recognition, robust surge handling, and axial-leaded mechanical durability for industrial and infrastructure applications.
FAQ
What is the clamping voltage of the 1N6282ARL4 under maximum surge conditions?
The 1N6282ARL4 clamps to a maximum of 41.4 V when subjected to its rated peak pulse current of 36 A (1 ms exponential waveform). This value is measured per Figure 5 in the official datasheet and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring compatibility with downstream components' absolute maximum ratings.
Is the 1N6282ARL4 RoHS compliant and lead-free?
Yes, the 1N6282ARL4 features a Pb-free external lead finish, fully compliant with RoHS Directive 2011/65/EU. The device is manufactured using onsemi's Surmetic axial package process, and the lead finish meets JEDEC J-STD-020 moisture sensitivity and solderability requirements - confirmed in the December 2004 Rev. 6 datasheet.
Does the 1N6282ARL4 have UL recognition, and for which standard?
Yes, the 1N6282ARL4 carries UL Recognition under standard UL 497B (File #116110, QVGV2 category) for protectors in isolated loop circuits. This certification covers dielectric withstand, endurance conditioning, and strike voltage breakdown testing - validating its use in safety-critical telecom and industrial isolation barriers.
What is the thermal resistance and steady-state power rating of the 1N6282ARL4?
The 1N6282ARL4 has a junction-to-lead thermal resistance (RJL) of 20 °C/W and a steady-state power dissipation (PD) of 5.0 W at TL ≤ 75°C with 3/8″ lead length. Derating is 20 mW/°C above 75°C - essential for calculating safe continuous power handling in thermally constrained enclosures.
How does the 1N6282ARL4 differ from the 1.5KE30A variant?
The 1N6282ARL4 and 1.5KE30A share identical electrical specifications (VRWM = 25.6 V, VBR = 30 V, VC = 41.4 V), same Case 41A package, and UL 497B recognition. The sole difference is packaging format: 1N6282ARL4 ships in 1500-unit tape-and-reel for automated assembly, whereas 1.5KE30A is supplied in 500-unit boxes for manual or low-volume use.
1N6282ARL4 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):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- 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
1N6282ARL4 FAQ
1.How can I place an order for 1N6282ARL4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6282ARL4 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 1N6282ARL4 reliable?
The price and inventory of 1N6282ARL4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6282ARL4 is usually 5 days.
3.What payment methods are accepted for 1N6282ARL4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6282ARL4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6282ARL4?
1N6282ARL4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6282ARL4 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 1N6282ARL4?
For technical support, including 1N6282ARL4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6282ARL4 requirements.
6.How does Aetrix verify that 1N6282ARL4 is sourced from the original manufacturer or authorized distributors?
All 1N6282ARL4 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 1N6282ARL4 meets industry standards.
7.What is the process for return or replacement of 1N6282ARL4?
All 1N6282ARL4 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6282ARL4, 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 1N6282ARL4 part is unused and in its original packaging.
Return procedure for 1N6282ARL4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6282ARL4 Tags
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