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onsemi 1N6280ARL4
- Part No.:
- 1N6280ARL4
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1N6280ARL4.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:6,380
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Product details
Overview
1N6280ARL4 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 20.5 V working peak reverse voltage (VRWM), 24 V breakdown voltage (VBR) at 1 mA test current, and clamps to ≤33.2 V at 45 A peak pulse current - enabling robust surge suppression in power supply inputs and industrial I/O lines.
For engineers reviewing the 1N6280ARL4 datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage margin vs. protected IC's absolute maximum rating, VRWM alignment with DC bus voltage, UL 497B recognition for isolated loop compliance, and axial leaded Case 41A package suitability for through-hole PCB layouts requiring high surge robustness.
Technical Context
This device operates as a unidirectional avalanche diode, entering low-impedance conduction when reverse voltage exceeds its specified VBR (22.8–25.2 V). Its fast response time (<1 ns) and low dynamic impedance ensure rapid clamping during ESD or lightning-induced surges.
Rated for 1500 W nonrepetitive peak pulse power (1 ms waveform), it sustains 5.0 W steady-state dissipation at 75°C lead temperature with 20°C/W junction-to-lead thermal resistance - confirming suitability for thermally constrained board-level protection without active cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500 W @ 1 ms - handles single-event surges up to 45 A without failure |
| Working Peak Reverse Voltage (VRWM) | 20.5 V - sets maximum continuous DC operating voltage before leakage rises |
| Breakdown Voltage (VBR) | 22.8–25.2 V @ 1 mA - defines precise avalanche onset threshold for predictable clamping |
| Clamping Voltage (VC) | ≤33.2 V @ 45 A IPP - ensures protected circuitry remains below 33.2 V during full-rated surge |
| Leakage Current (IR) | <5 µA @ 20.5 V - negligible standby power loss and signal integrity impact |
| Response Time | <1 ns - limits voltage overshoot before clamping engages |
| ESD Rating | Class 3 (>16 kV HBM) - meets IEC 61000-4-2 Level 4 immunity requirements |
Pinout & Package
1N6280ARL4 uses an axial-leaded Surmetic plastic package (Case 41A), with cathode identified by a polarity band. Leads are tin-plated, solderable at 230°C for 10 seconds at 1/16″ from case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reverse-biased reference terminal | Connected to system ground or low-side return path in unidirectional clamp configuration |
| Cathode | High-voltage input terminal | Connected to protected line (e.g., DC input, signal trace) - polarity band marks this terminal |
Key Features
| Feature | Design Value |
|---|---|
| UL 497B Recognition (QVGV2) | Validated for isolated loop circuit protection - eliminates need for separate certification testing |
| 1500 W Peak Pulse Rating | Withstands IEC 61000-4-5 4 kV surge (line-to-earth) without degradation |
| Low Clamping Ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage stress on downstream components relative to breakdown threshold |
| Pb-Free External Lead Finish | Complies with RoHS Directive 2011/65/EU and JEDEC J-STD-609A Class 3 moisture sensitivity |
| −65°C to +175°C Operating Range | Supports deployment in automotive under-hood, industrial motor drives, and outdoor power equipment |
Applications
| Industrial Power Supply Input Protection | Telecom Line Interface Protection |
|---|---|
Use Scenario: 24 V DC input stage of PLC I/O module exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed across input terminals to clamp surges before they reach upstream DC-DC converter. Use Value: Limits transient voltage to ≤33.2 V, protecting 36 V-rated input capacitors and controller ICs while maintaining >20.5 V nominal operation margin. |
Use Scenario: RS-485 data line interface in building automation controller connected to long outdoor cable runs. IC Role / Device Role / Timing Role: Parallel-connected TVS suppressing induced lightning surges on differential pair before transceiver input pins. Use Value: Sub-1 ns response prevents >33.2 V common-mode spikes from exceeding transceiver's ±15 V absolute max rating, preserving signal integrity. |
| Medical Equipment AC/DC Adapter Input | Automotive Body Control Module (BCM) Sensor Inputs |
Use Scenario: Secondary-side rectified output of medical-grade AC/DC adapter powering patient-monitoring analog front-end. IC Role / Device Role / Timing Role: Clamp diode across 24 V output rail to absorb coupling transients from primary-side switching noise or ESD events. Use Value: UL 497B recognition validates compliance for patient-connected equipment; low leakage (<5 µA) avoids drift in precision analog circuits. |
Use Scenario: 5 V sensor supply line feeding Hall-effect position sensors in BCM, subject to battery disconnect transients. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to shunt load-dump energy (ISO 7637-2 Pulse 5a) away from LDO regulator. Use Value: 1500 W rating absorbs 12 V/35 A pulse without failure; −65°C to +175°C range supports under-dash ambient extremes. |
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 | Surface-mount SMB package; 24 V VBR; 600 W peak power; 38.9 V VC @ 15.4 A | Limited to lower-energy surges; requires PCB real estate optimization for SMT layout | Select when automated assembly and space constraints outweigh need for 1500 W surge handling |
| 1.5KE24A | Same electrical specs and Case 41A package; identical VRWM/VBR/VC ratings; manufactured under same ON Semi process | No functional or mechanical difference - direct form-fit-function replacement | Choose for legacy BOM continuity where 1.5KE24A is already qualified |
Compared with SMBJ24A, 1N6280ARL4 delivers 2.5× higher surge energy absorption in axial-leaded format; compared with 1.5KE24A, it shares identical performance but differs only in JEDEC marking convention and tape-and-reel packaging (RL4 = 1500/reel).
Availability
1N6280ARL4 is available at Aetrix Electronics and suitable for industrial power supplies, telecom infrastructure interfaces, medical AC/DC adapters, and automotive body control modules requiring stable component supply and certified surge protection.
Supply support for 1N6280ARL4 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 supplier specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and medical markets.
The 1N6267A Series - including 1N6280ARL4 - was engineered specifically for high-reliability, high-surge industrial and communications equipment requiring UL-recognized, cost-effective transient suppression in axial-leaded format.
FAQ
What is the clamping voltage of the 1N6280ARL4 at its rated peak pulse current?
The 1N6280ARL4 clamps to a maximum of 33.2 V at its rated peak pulse current of 45 A (1 ms waveform). This value is measured per Figure 5 in the official ON Semiconductor datasheet and represents the upper limit of voltage seen by protected circuitry during a full-rated surge event - critical for verifying margin against downstream IC absolute maximum ratings.
Is the 1N6280ARL4 RoHS compliant and lead-free?
Yes, the 1N6280ARL4 features a Pb-free external lead finish per JEDEC J-STD-609A Class 3, fully compliant with EU RoHS Directive 2011/65/EU. The device uses ON Semiconductor's Surmetic axial package with void-free thermosetting plastic encapsulation and corrosion-resistant, readily solderable leads.
Does the 1N6280ARL4 have UL recognition, and for what standard?
Yes, the 1N6280ARL4 carries UL 497B recognition under file #116110 (category QVGV2) for isolated loop circuit protection. This certification covers strike voltage breakdown, endurance conditioning, dielectric withstand, and discharge testing - validating its use in safety-critical telecom and industrial isolation barriers.
What is the thermal resistance and steady-state power rating of the 1N6280ARL4?
The 1N6280ARL4 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 linear above 75°C at 20 mW/°C - essential for calculating safe continuous power in thermally constrained mounting configurations.
How does the 1N6280ARL4 differ from the 1.5KE24A variant?
The 1N6280ARL4 and 1.5KE24A share identical electrical specifications (20.5 V VRWM, 24 V VBR, 33.2 V VC), mechanical package (Case 41A), and surge capability. They differ only in JEDEC marking nomenclature and packaging format: 1N6280ARL4 is the JEDEC-registered part number supplied in 1500-unit tape-and-reel (RL4), while 1.5KE24A is ON Semiconductor's proprietary device code.
1N6280ARL4 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):
- 20.5V
- Voltage - Breakdown (Min):
- 22.8V
- Voltage - Clamping (Max) @ Ipp:
- 33.2V
- 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
1N6280ARL4 FAQ
1.How can I place an order for 1N6280ARL4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6280ARL4 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 1N6280ARL4 reliable?
The price and inventory of 1N6280ARL4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6280ARL4 is usually 5 days.
3.What payment methods are accepted for 1N6280ARL4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6280ARL4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6280ARL4?
1N6280ARL4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6280ARL4 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 1N6280ARL4?
For technical support, including 1N6280ARL4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6280ARL4 requirements.
6.How does Aetrix verify that 1N6280ARL4 is sourced from the original manufacturer or authorized distributors?
All 1N6280ARL4 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 1N6280ARL4 meets industry standards.
7.What is the process for return or replacement of 1N6280ARL4?
All 1N6280ARL4 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6280ARL4, 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 1N6280ARL4 part is unused and in its original packaging.
Return procedure for 1N6280ARL4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6280ARL4 Tags
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Diodes Incorporated
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