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onsemi 1.5KE6.8ARL4G
- Part No.:
- 1.5KE6.8ARL4G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1.5KE6.8ARL4G.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:1,500
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Product details
Overview
1.5KE6.8ARL4G from ON Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) diode designed for parallel clamping protection of sensitive electronics against ESD, lightning-induced surges, and inductive switching transients. It features a 5.8 V working peak reverse voltage (VRWM), 6.8 V nominal breakdown voltage (VBR) at 10 mA, 10.5 V clamping voltage (VC) at 143 A peak pulse current (IPP), and <1 ns response time. It is used in power supply input stages, industrial I/O interfaces, and telecom line cards requiring robust overvoltage immunity.
For engineers reviewing the 1.5KE6.8ARL4G datasheet, pinout, applications, or equivalent options, key selection criteria include VRWM margin vs. operating DC voltage, VC vs. protected IC's absolute maximum rating, IPP capability under system-level surge waveforms (e.g., IEC 61000-4-5), and UL 497B recognition for isolated loop protection compliance.
Technical Context
This device operates as a silicon avalanche diode with sharp Zener-like breakdown characteristics, optimized for fast clamping under high-energy transients. Its low dynamic impedance (<1 Ω typical near VBR) and sub-nanosecond intrinsic response ensure minimal overshoot when mounted with short leads near vulnerable circuit nodes.
The 1.5KE6.8ARL4G is rated for non-repetitive 1 ms pulses up to 1500 W at TL ≤ 25°C, with thermal derating to 5.0 W steady-state at TL = 75°C. Its Surmetic axial leaded package (Case 41A) provides mechanical robustness and solderability per J-STD-020, supporting manual and wave soldering at 260°C for 10 seconds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPK) | 1500 W @ 1 ms pulse - sustains IEC 61000-4-5 Level 4 (4 kV/2 Ω) surge without failure |
| Working Peak Reverse Voltage (VRWM) | 5.8 V - maximum continuous DC or peak AC voltage the device blocks before entering breakdown |
| Breakdown Voltage (VBR) | 6.45–7.14 V @ IT = 10 mA - tight tolerance ensures predictable turn-on across production lots |
| Clamping Voltage (VC) | 10.5 V @ IPP = 143 A - limits transient voltage seen by downstream ICs to safe levels |
| Leakage Current (IR) | <5 μA @ VRWM - negligible standby power loss and no signal integrity impact in high-impedance circuits |
| Response Time | <1 ns - enables effective suppression of fast-rising ESD events (IEC 61000-4-2) before damage occurs |
| ESD Rating | Class 3 (>16 kV HBM) - exceeds JEDEC JS-001 requirements for system-level ESD robustness |
Pinout & Package
1.5KE6.8ARL4G uses an axial-leaded Surmetic plastic package (Case 41A), with cathode identified by a polarity band. Leads are tin-plated copper, corrosion-resistant, and solderable per IPC-J-STD-001.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point for unidirectional clamping | Connected to ground or low-voltage rail; completes conduction path during reverse transient |
| Cathode | High-side connection point with polarity band marking | Connected to protected line (e.g., +5 V rail); conducts when line voltage exceeds VRWM |
Key Features
| Feature | Design Value |
|---|---|
| UL 497B Recognition | Qualified for isolated loop circuit protection - enables use in telecom/data line interfaces without additional certification effort |
| Pb-Free Construction | RoHS-compliant Surmetic package - meets environmental regulations without compromising surge reliability |
| Low Clamping Ratio (VC/VBR) | ~1.55 - minimizes overvoltage stress on protected components relative to breakdown threshold |
| Thermal Resistance (RJL) | 20 °C/W - supports reliable heat dissipation through leads into PCB copper, critical for repeated surge events |
| Steady-State Power Rating | 5.0 W @ TL = 75°C - allows sustained operation in hot environments (e.g., enclosed power supplies) |
Applications
| Industrial Power Supply Input Protection | Telecom Line Interface Protection |
|---|---|
Use Scenario: 24 V DC input stage of PLC power module exposed to load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between input rail and chassis ground to shunt surge energy before it reaches DC/DC controller. Use Value: 10.5 V clamping voltage prevents controller overvoltage failure during 100 A/1 ms transients, validated per IEC 61000-4-4. |
Use Scenario: RS-485 data line in outdoor base station subjected to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Paired 1.5KE6.8ARL4G devices (line-to-ground) provide symmetric clamping on differential pair. Use Value: Sub-ns response and UL 497B recognition ensure compliance with GR-1089-CORE for telecom infrastructure surge immunity. |
| Medical Equipment ESD Protection | Automotive Body Control Module I/O |
Use Scenario: Front-panel USB port on diagnostic imaging device requiring >15 kV contact ESD immunity. IC Role / Device Role / Timing Role: Primary-level TVS on VBUS line, upstream of USB transceiver and ESD filter. Use Value: Class 3 HBM rating and 10.5 V VC limit transient excursion below USB 2.0 PHY's 12 V abs max rating. |
Use Scenario: 5 V sensor supply line in BCM exposed to ISO 7637-2 pulse 1 (inductive switch-off) and pulse 3a/b (load dump). IC Role / Device Role / Timing Role: Clamp on regulated 5 V rail feeding microcontroller peripherals. Use Value: 1500 W peak power rating handles 100 V/50 ms load dump events without degradation, per AEC-Q200 stress profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.8A | Lower peak power (600 W), SMC package, 10.5 V VC @ 58.1 A IPP | Targeted for space-constrained PCBs; insufficient for 1500 W surge requirements | Select only when system-level surge energy is ≤600 W and board area limits axial packages |
| 1N6267AG | Same electrical specs and JEDEC code; identical VRWM, VBR, VC, and IPP - Pb-free axial variant with box packaging | No functional difference; differs only in packaging format (500-unit box vs. 1500-unit tape & reel) | Choose 1N6267AG for low-volume prototyping or hand-soldered builds where reel handling is impractical |
Compared with SMBJ6.8A, 1.5KE6.8ARL4G delivers 2.5× higher surge energy handling in an axial form factor suited for high-power industrial designs; versus 1N6267AG, it offers identical protection performance with optimized logistics for automated SMT assembly via tape-and-reel delivery.
Availability
1.5KE6.8ARL4G is available at Aetrix Electronics and suitable for industrial power supplies, telecom line interfaces, medical equipment ESD protection, and automotive body control modules requiring stable component supply and full traceability.
Supply support for 1.5KE6.8ARL4G 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 power management, analog, sensors, and discrete devices for automotive, industrial, cloud, and IoT applications.
The 1.5KE6.8ARL4G belongs to the Mosorb 1500 W TVS family, engineered specifically for high-energy transient suppression in harsh environments where reliability, UL recognition, and consistent clamping performance are mandatory.
FAQ
What is the maximum working voltage that can be safely applied to the 1.5KE6.8ARL4G without triggering conduction?
The 1.5KE6.8ARL4G has a working peak reverse voltage (VRWM) of 5.8 V, meaning it reliably blocks voltages up to this level under steady-state conditions. Applying a continuous DC or peak AC voltage exceeding 5.8 V risks premature breakdown and potential thermal runaway. Designers must ensure system operating voltage remains ≥10–15% below VRWM for margin, especially considering temperature drift and tolerances.
How does the 1.5KE6.8ARL4G compare to bidirectional TVS diodes in surge protection applications?
The 1.5KE6.8ARL4G is unidirectional and optimized for DC-biased lines like power rails or single-ended signals referenced to ground. Unlike bidirectional variants, it provides lower leakage and sharper knee characteristics in forward conduction but cannot suppress negative-going transients on AC-coupled lines. Use 1.5KE6.8ARL4G where polarity is fixed and clamping only in one direction is required - e.g., +5 V supply protection.
Is the 1.5KE6.8ARL4G compliant with UL 497B, and what does that mean for my design?
Yes, the 1.5KE6.8ARL4G carries UL 497B recognition (File #E210057) for protector classification, covering tests including strike voltage breakdown, endurance conditioning, and discharge performance. This certification validates its suitability for isolated loop circuits in telecom and industrial systems, reducing need for additional safety testing and accelerating end-product certification.
What is the thermal resistance junction-to-lead (RJL) of the 1.5KE6.8ARL4G, and why does it matter?
The 1.5KE6.8ARL4G has a thermal resistance junction-to-lead (RJL) of 20 °C/W. This value quantifies how effectively heat generated during surge events transfers from the silicon die to the PCB copper via the leads. A lower RJL enables faster thermal dissipation, improving reliability during repetitive transients and extending device lifetime in thermally demanding applications like enclosed power supplies.
Can the 1.5KE6.8ARL4G be used in automotive applications meeting AEC-Q200 requirements?
While the 1.5KE6.8ARL4G is not AEC-Q200 qualified, its electrical ratings - including 1500 W peak power, -65°C to +175°C operating range, and robust surge endurance - align with many AEC-Q200 stress profiles. For production automotive use, designers should perform application-specific validation per AEC-Q200 test plans; however, the 1.5KE6.8ARL4G is widely deployed in non-safety-critical automotive subsystems such as body control modules and infotainment power rails.
1.5KE6.8ARL4G 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):
- 5.8V
- Voltage - Breakdown (Min):
- 6.45V
- Voltage - Clamping (Max) @ Ipp:
- 10.5V
- Current - Peak Pulse (10/1000µs):
- 143A
- 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
1.5KE6.8ARL4G FAQ
1.How can I place an order for 1.5KE6.8ARL4G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE6.8ARL4G 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 1.5KE6.8ARL4G reliable?
The price and inventory of 1.5KE6.8ARL4G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE6.8ARL4G is usually 5 days.
3.What payment methods are accepted for 1.5KE6.8ARL4G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE6.8ARL4G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE6.8ARL4G?
1.5KE6.8ARL4G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE6.8ARL4G 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 1.5KE6.8ARL4G?
For technical support, including 1.5KE6.8ARL4G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE6.8ARL4G requirements.
6.How does Aetrix verify that 1.5KE6.8ARL4G is sourced from the original manufacturer or authorized distributors?
All 1.5KE6.8ARL4G 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 1.5KE6.8ARL4G meets industry standards.
7.What is the process for return or replacement of 1.5KE6.8ARL4G?
All 1.5KE6.8ARL4G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE6.8ARL4G, 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 1.5KE6.8ARL4G part is unused and in its original packaging.
Return procedure for 1.5KE6.8ARL4G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE6.8ARL4G Tags
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