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onsemi 1N6275ARL4
- Part No.:
- 1N6275ARL4
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1N6275ARL4.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:3,718
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Product details
Overview
1N6275ARL4 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 12.8 V working peak reverse voltage (VRWM), 15 V breakdown voltage (VBR) at 1 mA test current, and clamps to ≤21.2 V at 71 A peak pulse current (IPP), making it suitable for power supply input stage surge protection in industrial power converters.
For engineers reviewing the 1N6275ARL4 datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage margin relative to protected IC's absolute maximum rating, VRWM compatibility with DC bus voltage, UL 497B recognition for isolated loop circuits, and axial leaded Surmetic package thermal performance under repetitive surge conditions.
Technical Context
This device operates as a voltage-clamping avalanche diode, triggered when reverse voltage exceeds its specified VBR (14.3–15.8 V). Its low dynamic impedance and sub-1 ns response time enable rapid suppression of ESD and lightning-induced surges without significant overshoot-provided PCB layout minimizes trace inductance.
Rated for 1500 W nonrepetitive peak pulse power (1 ms waveform), it delivers 71 A IPP while maintaining VC ≤21.2 V. Thermal design must account for 20 °C/W junction-to-lead resistance and derating above 75 °C ambient, with steady-state dissipation limited to 5.0 W at TL ≤75 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500 W @ 1 ms - sustains single high-energy transients per IEC 61000-4-5 Level 4 without failure |
| Working Peak Reverse Voltage | 12.8 V - maximum continuous DC or peak AC voltage the device blocks before clamping |
| Breakdown Voltage | 15 V (min 14.3 V, max 15.8 V @ 1 mA) - precise threshold for avalanche conduction onset |
| Clamping Voltage | ≤21.2 V @ 71 A IPP - maximum voltage imposed on protected circuit during worst-case surge |
| Leakage Current | <5 µA @ 12.8 V - negligible standby power loss and signal integrity impact in high-impedance circuits |
| Response Time | <1 ns - ensures clamping activation before transient energy damages downstream CMOS/MOS components |
| ESD Rating | Class 3 (>16 kV HBM) - meets stringent electrostatic discharge immunity requirements for end-equipment certification |
Pinout & Package
1N6275ARL4 uses an axial-leaded Surmetic plastic package (Case 41A), with cathode identified by a polarity band. Leads are Pb-free, solderable up to 230 °C for 10 seconds at 1/16 inch from case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reverse-biased reference terminal | Connected to system ground or low-side return path; defines clamping reference point |
| Cathode | Transient voltage sensing node | Connected to protected line (e.g., +12 V rail); conducts avalanche current to ground during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| UL 497B Recognition | Qualified for isolated loop circuit protection-enables use in telecom/data line interfaces without additional safety certification effort |
| Low Clamping Ratio | VC/VBR ≈ 1.41 - tight voltage margin preserves headroom for protected ICs with 24 V absolute maximum ratings |
| High Surge Robustness | Withstands 200 A forward surge (8.3 ms half-sine) - supports fault-current limiting in AC/DC front-end designs |
| Pb-Free Lead Finish | Complies with RoHS Directive 2011/65/EU - eliminates lead contamination risk in automated assembly and end-of-life recycling |
| Void-Free Mold Compound | Ensures consistent thermal transfer and mechanical reliability under thermal cycling in industrial environments |
Applications
| Industrial Power Supply Input Protection | Telecom Line Interface Protection |
|---|---|
Use Scenario: 12 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 diode placed across input rails to clamp surges before they reach upstream rectifier and downstream DC/DC controller. Use Value: Limits transient voltage to ≤21.2 V, protecting 24 V-rated MOSFETs and gate drivers without requiring oversized input capacitors or active crowbar circuits. |
Use Scenario: Primary-side protection on RS-485 data lines in building automation controllers connected to long outdoor runs. IC Role / Device Role / Timing Role: Parallel-connected surge suppressor referenced to local ground, absorbing induced lightning surges coupled onto differential pair. Use Value: UL 497B recognition validates compliance for isolated loop protection, reducing system-level safety testing burden in Class 2 wiring installations. |
| Medical Equipment Power Entry | Automotive Aftermarket ECUs |
Use Scenario: Mains-derived 12 V auxiliary supply in diagnostic imaging equipment subject to hospital-grade power disturbances. IC Role / Device Role / Timing Role: First-line transient suppressor on secondary-side DC bus, coordinated with upstream MOVs and filtering. Use Value: Sub-1 ns response prevents latch-up in low-voltage analog front-ends (e.g., ADC references, sensor amplifiers) during fast-rising EFT bursts. |
Use Scenario: 12 V battery-supplied engine control unit retrofit module exposed to automotive load dump (ISO 7637-2 Pulse 5a). IC Role / Device Role / Timing Role: Standalone TVS mounted directly at connector entry point to shunt surge energy before entering regulator ICs. Use Value: 1500 W peak power rating handles 120 V/100 ms load dump pulses without degradation, supporting extended temperature operation up to +175 °C junction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15A | Surface-mount SMB package; 1500 W rating; VRWM = 12.8 V; VC = 24.4 V @ 61.5 A | Requires PCB rework for SMT layout; higher clamping voltage reduces margin for 24 V systems | Select when board space is constrained and automated assembly is prioritized over axial through-hole serviceability |
| 1.5KE15A | Same die in alternate packaging (DO-201AD); identical electrical specs; tape-and-reel shipping differs (1.5KE15A = 1500/reel, same as 1N6275ARL4) | No functional or layout change required; identical surge performance and thermal profile | Preferred for new designs where ON Semiconductor's preferred device status and DO-201AD footprint standardization are advantageous |
Compared with SMBJ15A, 1N6275ARL4 offers lower clamping voltage (21.2 V vs. 24.4 V) and proven axial-lead thermal robustness in high-temperature enclosures; compared with 1.5KE15A, it shares identical core specs but differs in JEDEC marking and legacy part numbering-both are electrically interchangeable in existing designs.
Availability
1N6275ARL4 is available at Aetrix Electronics and suitable for industrial power supplies, telecom infrastructure equipment, medical diagnostic devices, and automotive aftermarket ECUs requiring stable component supply across multi-year production cycles.
Supply support for 1N6275ARL4 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 manufacturer specializing in power management, analog, sensors, and connectivity solutions for automotive, industrial, cloud, and medical markets.
The 1N6275ARL4 belongs to the Mosorb 1500 W TVS series, engineered specifically for high-reliability transient suppression in harsh environments where UL recognition, surge endurance, and low clamping ratio are critical design requirements.
FAQ
What is the maximum clamping voltage of the 1N6275ARL4 under surge conditions?
The 1N6275ARL4 clamps to a maximum of 21.2 V when subjected to its rated 71 A peak pulse current (IPP), measured using the standardized 1 ms exponential waveform. This value is guaranteed across temperature and represents the highest voltage the protected circuit will experience during worst-case transient events, enabling reliable interface with 24 V-rated components.
Does the 1N6275ARL4 meet UL safety standards for industrial applications?
Yes, the 1N6275ARL4 carries UL 497B recognition (File #116110, QVGV2 category) for isolated loop circuit protection. This certification confirms successful completion of strike voltage breakdown, endurance conditioning, dielectric withstand, and discharge testing-making it suitable for safety-critical industrial and telecom applications without requiring additional system-level validation.
How does the axial leaded package of the 1N6275ARL4 affect thermal performance?
The 1N6275ARL4's Case 41A axial package provides a 20 °C/W junction-to-lead thermal resistance, enabling effective heat transfer to PCB copper or heatsinks via lead soldering. Its 3/8 inch lead length specification allows controlled thermal derating: steady-state power drops linearly above 75 °C lead temperature, supporting reliable operation in enclosed industrial enclosures up to +175 °C junction temperature.
Can the 1N6275ARL4 be used in bidirectional signal line protection?
No, the 1N6275ARL4 is a unidirectional TVS diode and only protects against reverse-polarity transients on the cathode side. For bidirectional protection (e.g., RS-485, USB), use the complementary 1.5KE15CA or SMBJ15CA-these feature symmetrical clamping in both directions and are tested per the same electrical parameters except forward voltage.
What is the leakage current specification for the 1N6275ARL4 at its working voltage?
The 1N6275ARL4 exhibits a maximum reverse leakage current of 5 µA when biased at its 12.8 V working peak reverse voltage (VRWM), measured at 25 °C. This ultra-low leakage ensures minimal power loss and no measurable loading effect on high-impedance sensor bias networks or precision reference circuits.
1N6275ARL4 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):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- 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
1N6275ARL4 FAQ
1.How can I place an order for 1N6275ARL4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6275ARL4 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 1N6275ARL4 reliable?
The price and inventory of 1N6275ARL4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6275ARL4 is usually 5 days.
3.What payment methods are accepted for 1N6275ARL4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6275ARL4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6275ARL4?
1N6275ARL4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6275ARL4 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 1N6275ARL4?
For technical support, including 1N6275ARL4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6275ARL4 requirements.
6.How does Aetrix verify that 1N6275ARL4 is sourced from the original manufacturer or authorized distributors?
All 1N6275ARL4 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 1N6275ARL4 meets industry standards.
7.What is the process for return or replacement of 1N6275ARL4?
All 1N6275ARL4 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6275ARL4, 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 1N6275ARL4 part is unused and in its original packaging.
Return procedure for 1N6275ARL4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6275ARL4 Tags
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onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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