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onsemi 1.5KE16ARL4G
- Part No.:
- 1.5KE16ARL4G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1.5KE16ARL4G.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:1,990
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Product details
Overview
1.5KE16ARL4G from ON Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) diode designed for parallel clamping protection of sensitive electronics against ESD, lightning surges, and inductive switching transients. It features a 13.6 V working peak reverse voltage (VRWM), 16 V breakdown voltage (VBR) at 1 mA test current, and clamps to 22.5 V at 67 A peak pulse current (IPP), making it suitable for DC power rail protection in industrial power supplies and communication interfaces.
For engineers reviewing the 1.5KE16ARL4G datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage margin relative to protected IC VDD, 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 TVS operates as a voltage-clamped shunt device triggered by avalanche breakdown above its specified VBR. Its low dynamic impedance (<1 Ω typical near IPP) ensures rapid energy diversion during transients, while sub-1 ns response time minimizes overshoot before clamping engages. The device is rated for non-repetitive 1500 W pulses per Figure 5 waveform (10/1000 µs).
Thermal design relies on junction-to-lead resistance (RJL = 20 °C/W) and derating above 75 °C ambient; steady-state dissipation is limited to 5.0 W at TL ≤ 75 °C. UL 497B recognition confirms suitability for isolated telecom and process control loop protection where safety-certified transient suppression is mandated.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500 W @ 1 ms - handles single high-energy surges without failure |
| Working Peak Reverse Voltage (VRWM) | 13.6 V - maximum continuous DC or peak AC voltage before leakage exceeds 5 µA |
| Breakdown Voltage (VBR) | 16.0 V @ 1 mA - precise avalanche initiation threshold for predictable clamping onset |
| Clamping Voltage (VC) | 22.5 V @ 67 A IPP - maximum voltage seen by protected circuit during worst-case surge |
| Leakage Current (IR) | <5 µA @ VRWM - negligible standby power loss and signal integrity impact |
| Response Time | <1 ns - enables protection of fast-edge digital and analog signals |
| ESD Rating | Class 3 (>16 kV HBM) - meets IEC 61000-4-2 Level 4 system-level ESD immunity |
Pinout & Package
1.5KE16ARL4G uses an axial-leaded Surmetic plastic package (Case 41A), with cathode indicated by a polarity band. Leads are tin-plated copper, solderable at 260 °C for 10 seconds at 1/16″ from case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or lowest potential node in clamping configuration |
| Cathode | High-side connection point | Connected to protected line (e.g., +12 V rail); polarity band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| UL 497B Recognition | Validated for isolated loop circuit protection in telecom and industrial control systems |
| Low Clamping Ratio (VC/VBR) | 1.41 - tight margin between breakdown and clamping ensures minimal overvoltage stress |
| Pb-Free Axial Lead Construction | RoHS-compliant Case 41A package with corrosion-resistant finish and reliable solderability |
| High Surge Current Capability | 67 A peak pulse current - supports robust protection in 24 V industrial bus and AC/DC front-end applications |
Applications
| Industrial Power Supply Input Protection | RS-485/422 Communication Line Protection |
|---|---|
Use Scenario: Protecting primary-side DC bus (e.g., +15 V output of AC/DC converter) against load dump and inductive kickback. IC Role / Device Role / Timing Role: Shunt clamping element placed directly across rail and ground, activated only during overvoltage events. Use Value: Limits transient voltage to 22.5 V, preventing damage to downstream regulators and microcontrollers rated for 16 V absolute maximum. | Use Scenario: Safeguarding differential data lines in factory automation networks exposed to ground potential differences and EFT noise. IC Role / Device Role / Timing Role: Bidirectional clamping pair (two devices) referenced to common-mode voltage, suppressing common-mode surges up to ±1 kV. Use Value: Maintains signal integrity by clamping transients within 1 ns, avoiding data corruption during 10 Mbps RS-485 operation. |
| Medical Equipment Patient Interface Protection | Programmable Logic Controller (PLC) Digital I/O Protection |
Use Scenario: Shielding low-voltage sensor inputs (e.g., ECG front-end) from electrostatic discharge during clinical handling. IC Role / Device Role / Timing Role: Unidirectional TVS connected between input trace and chassis ground, with cathode to signal line. Use Value: Withstands >16 kV HBM ESD strikes while adding <1 pF capacitance, preserving high-impedance analog signal fidelity. | Use Scenario: Protecting 24 V DC digital input channels on PLC modules from wiring errors and field-induced surges. IC Role / Device Role / Timing Role: Rail-to-rail clamping device installed at connector entry point, diverting surge current away from optocoupler input stage. Use Value: Enables compliance with IEC 61000-4-5 Level 3 (2 kV line-earth) without requiring additional series impedance or filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16A | Surface-mount SMB package (vs. axial lead); same 16 V VBR but lower 600 W PPK rating | Requires PCB rework for SMT layout; unsuitable for through-hole legacy designs or high-vibration environments | Select when board space is constrained and surge requirements are ≤600 W |
| 1.5KE16A | Same electrical specs and Case 41A package, but supplied in 500-unit boxes (vs. 1500-unit tape-and-reel) | No functional difference; choice driven by procurement volume and assembly method (manual vs. pick-and-place) | Select for low-volume prototyping or manual soldering where reel handling is impractical |
Compared with SMBJ16A and 1.5KE16A, the 1.5KE16ARL4G offers full 1500 W surge capability in a tape-and-reel format optimized for automated through-hole insertion-critical for high-reliability industrial power supply manufacturing where axial lead mechanical robustness and repeatable surge performance are prioritized.
Availability
1.5KE16ARL4G is available at Aetrix Electronics and suitable for industrial power supplies, RS-485 communication interfaces, medical diagnostic equipment, and programmable logic controller (PLC) I/O modules requiring stable component supply and long-term obsolescence management.
Supply support for 1.5KE16ARL4G 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, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and IoT applications.
The 1.5KE16ARL4G belongs to the 1.5KE Series Mosorb TVS family, engineered specifically for high-power, high-reliability transient suppression in harsh industrial and telecom environments where UL 497B certification and axial mechanical stability are mandatory.
FAQ
What is the clamping voltage of the 1.5KE16ARL4G and how does it protect downstream components?
The 1.5KE16ARL4G clamps to 22.5 V at its rated 67 A peak pulse current (IPP). This means that during a transient event, the voltage across the protected line will not exceed 22.5 V, shielding downstream ICs-such as microcontrollers or interface transceivers-with absolute maximum ratings below that threshold. Its low dynamic impedance ensures rapid energy shunting, minimizing stress duration and thermal accumulation in the protected circuit.
Is the 1.5KE16ARL4G RoHS compliant and what packaging format does it use?
Yes, the 1.5KE16ARL4G is Pb-free and RoHS compliant, using ON Semiconductor's Surmetic axial-leaded plastic package (Case 41A). It ships in 1500-unit tape-and-reel format (RL4G suffix), optimized for automated through-hole insertion. The leads are tin-plated copper and rated for soldering at 260 °C for 10 seconds at 1/16″ from the case body.
Does the 1.5KE16ARL4G have UL recognition and for which standards?
Yes, the 1.5KE16ARL4G carries UL 497B recognition (File #E210057, QVGQ2 category) for isolated loop circuit protection. This certification validates its performance in telecom, process control, and medical isolation barrier applications-including passing Strike Voltage Breakdown, Endurance Conditioning, and Dielectric Withstand tests-not just flammability compliance.
How does the 1.5KE16ARL4G differ from the 1.5KE16A variant?
The 1.5KE16ARL4G and 1.5KE16A share identical electrical specifications and Case 41A package. The sole difference is packaging: 1.5KE16ARL4G is supplied in 1500-unit tape-and-reel for automated assembly, whereas 1.5KE16A comes in 500-unit boxes for manual or low-volume placement. Both are Pb-free and UL-recognized.
What is the maximum continuous reverse voltage the 1.5KE16ARL4G can withstand without significant leakage?
The 1.5KE16ARL4G has a working peak reverse voltage (VRWM) of 13.6 V, meaning it sustains continuous reverse bias up to this level with leakage current held below 5 µA. Operating above 13.6 V risks premature conduction and excessive power dissipation; therefore, it must be selected so VRWM ≥ maximum steady-state circuit voltage, including ripple and tolerance margins.
1.5KE16ARL4G 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):
- 13.6V
- Voltage - Breakdown (Min):
- 15.2V
- Voltage - Clamping (Max) @ Ipp:
- 22.5V
- Current - Peak Pulse (10/1000µs):
- 67A
- 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
1.5KE16ARL4G FAQ
1.How can I place an order for 1.5KE16ARL4G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE16ARL4G 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 1.5KE16ARL4G reliable?
The price and inventory of 1.5KE16ARL4G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE16ARL4G is usually 5 days.
3.What payment methods are accepted for 1.5KE16ARL4G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE16ARL4G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE16ARL4G?
1.5KE16ARL4G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE16ARL4G 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 1.5KE16ARL4G?
For technical support, including 1.5KE16ARL4G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE16ARL4G requirements.
6.How does Aetrix verify that 1.5KE16ARL4G is sourced from the original manufacturer or authorized distributors?
All 1.5KE16ARL4G 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 1.5KE16ARL4G meets industry standards.
7.What is the process for return or replacement of 1.5KE16ARL4G?
All 1.5KE16ARL4G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE16ARL4G, 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 1.5KE16ARL4G part is unused and in its original packaging.
Return procedure for 1.5KE16ARL4G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE16ARL4G Tags
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ESD9B5.0ST5G
onsemi
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D5V0P1B2LP-7B
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DESD5V0U1BA-7
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
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D5V0L1B2WS-7
Diodes Incorporated
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