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onsemi 1N6288ARL4G
- Part No.:
- 1N6288ARL4G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1N6288ARL4G.pdf
- Description:
- TVS DIODE 43.6VWM 70.1VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:10,500
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Product details
Overview
1N6288ARL4G from ON Semiconductor is a unidirectional 1500 W Mosorb transient voltage suppressor (TVS) diode with a 43.6 V working peak reverse voltage (VRWM), 51 V breakdown voltage (VBR) at 1 mA, and 70.1 V clamping voltage (VC) at 21.4 A peak pulse current. It features <1 ns response time, <5 µA leakage above 10 V, and UL 497B recognition for isolated loop circuit protection. It is used to safeguard CMOS, MOS, and bipolar ICs in power supplies and industrial control systems.
For engineers reviewing the 1N6288ARL4G datasheet, pinout, applications, or equivalent options, key selection criteria include VRWM margin over operating voltage, VC vs. protected device's absolute maximum rating, surge current capability under 1 ms pulses, and axial-leaded mechanical compatibility in space-constrained PCB layouts.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector in parallel with sensitive circuitry. Its silicon avalanche structure enables precise VBR tolerance (±5%), low dynamic impedance (<1 Ω typical), and stable clamping performance across temperature (0.102 %/°C tempco). It complies with IEC 61000-4-2 Level 4 ESD (16 kV HBM) and withstands non-repetitive 8.3 ms surges up to 200 A forward surge current.
The device uses a Surmetic axial-leaded plastic package (Case 41A) with void-free molding, corrosion-resistant finish, and Pb-free construction. Mounting is orientation-agnostic; polarity is marked by cathode band. Thermal resistance is 20 °C/W junction-to-lead, supporting 5.0 W steady-state dissipation at TL ≤ 75°C with 3/8″ lead length.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 43.6 V - Maximum continuous reverse operating voltage before clamping begins; must exceed system DC/peak AC rail voltage. |
| VBR @ IT=1 mA | 51 V (min–max: 48.5–53.6 V) - Precise avalanche onset threshold ensuring predictable turn-on behavior. |
| VC @ IPP=21.4 A | 70.1 V - Clamped voltage during 1 ms transient; must stay below protected IC's absolute max rating. |
| PPK | 1500 W @ 1 ms - Peak surge power handling capacity per single transient event. |
| Response Time | <1 ns - Enables suppression of fast-rising ESD and lightning-induced transients before damage occurs. |
| Leakage Current | <5 µA @ VRWM - Negligible standby power loss and signal integrity impact in high-impedance circuits. |
| UL Recognition | UL 497B (QVGQ2) - Certified for use in isolated loop telecom and industrial interface protection. |
Pinout & Package
1N6288ARL4G is housed in an axial-leaded Surmetic plastic package (Case 41A), with cathode identified by a colored band. Leads are solderable per J-STD-020, rated for 260°C for 10 seconds at 1/16″ from case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path | Connected to ground or low-impedance reference; completes clamping current loop during surge events. |
| Cathode | Protected line connection | Connected to the line being protected (e.g., +VOUT, signal line); polarity band marks this terminal. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Supports robust protection against IEC 61000-4-5 combination wave surges (e.g., 2 Ω/12 Ω source impedance) without degradation. |
| UL 497B certification | Validates suitability for safety-critical telecom and industrial loop-powered interfaces requiring third-party recognized protection. |
| ESD rating >16 kV HBM | Meets IEC 61000-4-2 Level 4, enabling direct integration into front-end ports without additional ESD staging. |
| Low zener impedance | Ensures minimal voltage overshoot during fast transients-critical for protecting 3.3 V and 5 V logic rails. |
| Pb-free Surmetic package | Complies with RoHS Directive 2011/65/EU and supports automated through-hole assembly with standard reflow profiles. |
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: Shunt clamping element placed between input rail and chassis ground, activated within <1 ns to limit voltage to ≤70.1 V. Use Value: Prevents latch-up or gate oxide rupture in downstream DC-DC controllers and monitoring ICs rated for 75 V absolute max. | Use Scenario: RS-485 data line pair in building automation node connected to long outdoor runs susceptible to lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS on each line referenced to local ground, clamping common-mode transients while preserving differential signaling integrity. Use Value: Maintains signal fidelity under 1 kV/µs transients per IEC 61000-4-5, with UL 497B validation confirming safe isolation barrier compliance. |
| Medical Equipment AC/DC Adapter Output | Process Control Sensor Signal Conditioning |
Use Scenario: Secondary-side +12 V output of medical-grade AC/DC adapter powering analog front-end and microcontroller. IC Role / Device Role / Timing Role: TVS placed at output connector to absorb coupling transients from nearby motor drives or relay switching. Use Value: Ensures immunity to 1500 W surges without compromising low-leakage (<5 µA) requirement for battery-backed backup circuits. | Use Scenario: 4–20 mA current loop transmitter output driving remote pressure sensor in oil & gas refinery environment. IC Role / Device Role / Timing Role: Bidirectional protection not required; unidirectional 1N6288ARL4G guards positive rail against accidental reverse polarity or induced surges. Use Value: Provides cost-optimized, UL-recognized protection aligned with intrinsic safety barriers and loop-powered design constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ51A | Surface-mount SMB package; same 51 V VBR but lower 600 W PPK rating and higher 87 V VC @ 11.5 A. | Requires PCB redesign for SMT placement; better suited for compact, high-density boards where axial leads are impractical. | Select when board space is constrained and surge energy requirements are ≤600 W. |
| 1.5KE51A | Same axial package and 1500 W rating, but legacy leaded (non-Pb-free) construction and no UL 497B listing. | Acceptable for non-certified industrial equipment; lacks documentation for safety-agency reviewed designs. | Select only if RoHS exemption applies and UL recognition is not required. |
Compared with SMBJ51A and 1.5KE51A, the 1N6288ARL4G uniquely combines Pb-free axial packaging, UL 497B certification, and full 1500 W surge capability-making it optimal for certified, through-hole industrial power and interface protection where regulatory compliance and mechanical robustness are mandatory.
Availability
1N6288ARL4G is available at Aetrix Electronics and suitable for industrial power supply input protection, telecom line interface protection, medical equipment AC/DC adapter output, and process control sensor signal conditioning requiring stable component supply and long-term lifecycle support.
Supply support for 1N6288ARL4G 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 is a global semiconductor supplier delivering energy-efficient, high-performance silicon solutions for automotive, industrial, cloud computing, medical, and IoT applications.
The 1N6267A Series is part of ON Semiconductor's Mosorb TVS portfolio, engineered specifically for high-energy transient suppression in harsh industrial and communications environments where reliability, certification, and precise clamping are critical.
FAQ
What is the clamping voltage of the 1N6288ARL4G and how is it measured?
The 1N6288ARL4G has a maximum clamping voltage (VC) of 70.1 V, measured at a peak pulse current (IPP) of 21.4 A with a 1 ms exponential waveform per Figure 5 in the datasheet. This value represents the upper voltage limit imposed on protected circuitry during a transient event and is critical for ensuring compatibility with downstream IC voltage ratings. The 1N6288ARL4G maintains this clamping performance across its specified temperature range and duty cycle limits.
Is the 1N6288ARL4G RoHS-compliant and what does the "RL4G" suffix indicate?
Yes, the 1N6288ARL4G is RoHS-compliant. The "G" suffix explicitly denotes a Pb-free package, and "RL4" indicates tape-and-reel packaging with 1500 units per reel. This construction meets JEDEC standards for lead-free soldering (260°C for 10 seconds) and is fully compatible with modern automated through-hole assembly processes. The 1N6288ARL4G carries no hazardous substance exemptions.
Does the 1N6288ARL4G require a heatsink for continuous operation?
No, the 1N6288ARL4G is not intended for continuous power dissipation. It is rated for 5.0 W steady-state power at TL ≤ 75°C with 3/8″ lead length, and its thermal resistance is 20 °C/W junction-to-lead. For transient suppression, heat is dissipated via short-duration pulses-not DC loading. Therefore, no heatsink is required; proper lead length and PCB copper area suffice for thermal management during surge events involving the 1N6288ARL4G.
How does the 1N6288ARL4G differ from bidirectional TVS diodes like SMAJ51CA?
The 1N6288ARL4G is unidirectional and functions only during positive transients on the cathode side relative to anode (ground). It offers lower leakage and tighter VBR tolerance than bidirectional equivalents. In contrast, SMAJ51CA clamps both polarities but exhibits higher capacitance and leakage. The 1N6288ARL4G is preferred for DC rail protection where polarity is fixed and low leakage is essential-such as in the 1N6288ARL4G's target applications in power supplies and sensor interfaces.
Can the 1N6288ARL4G be used in place of the older 1N6288A without design changes?
Yes, the 1N6288ARL4G is a direct replacement for the 1N6288A, sharing identical electrical specifications, axial package (Case 41A), and pinout. The "RL4G" variant adds Pb-free construction and tape-and-reel packaging but retains full functional and mechanical compatibility. No PCB layout or schematic modifications are needed when upgrading from 1N6288A to 1N6288ARL4G, and the 1N6288ARL4G extends lifecycle support with enhanced environmental compliance.
1N6288ARL4G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- DO-201AD, Axial
- Series:
- Mosorb™
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 43.6V
- Voltage - Breakdown (Min):
- 48.5V
- Voltage - Clamping (Max) @ Ipp:
- 70.1V
- 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
1N6288ARL4G FAQ
1.How can I place an order for 1N6288ARL4G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6288ARL4G 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 1N6288ARL4G reliable?
The price and inventory of 1N6288ARL4G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6288ARL4G is usually 5 days.
3.What payment methods are accepted for 1N6288ARL4G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6288ARL4G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6288ARL4G?
1N6288ARL4G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6288ARL4G 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 1N6288ARL4G?
For technical support, including 1N6288ARL4G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6288ARL4G requirements.
6.How does Aetrix verify that 1N6288ARL4G is sourced from the original manufacturer or authorized distributors?
All 1N6288ARL4G 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 1N6288ARL4G meets industry standards.
7.What is the process for return or replacement of 1N6288ARL4G?
All 1N6288ARL4G units undergo pre-shipment inspection (PSI). If there is an issue with 1N6288ARL4G, 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 1N6288ARL4G part is unused and in its original packaging.
Return procedure for 1N6288ARL4G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6288ARL4G Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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