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onsemi 1.5KE8.2ARL4G
- Part No.:
- 1.5KE8.2ARL4G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1.5KE8.2ARL4G.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:7,188
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Product details
Overview
1.5KE8.2ARL4G from ON Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) diode designed for parallel clamping protection of sensitive electronics. It features a 7.02 V working peak reverse voltage (VRWM), 8.2 V nominal breakdown voltage (VBR) at 10 mA, 12.1 V maximum clamping voltage (VC) at 124 A peak pulse current (IPP), and <1 ns response time - ideal for safeguarding power supplies and communication interfaces against ESD and lightning-induced surges.
For engineers reviewing the 1.5KE8.2ARL4G datasheet, pinout, applications, or equivalent options, key selection criteria include VRWM margin over operating voltage, VC vs. IC absolute maximum ratings, surge current capability under 1 ms pulses, UL 497B recognition for isolated loop protection, and axial lead (Case 41A) mechanical compatibility in legacy PCB layouts.
Technical Context
This device operates as a silicon avalanche diode with sharp Zener-like breakdown characteristics, triggered when reverse voltage exceeds VBR. Its low dynamic impedance (<1 Ω typical near VBR) ensures stable clamping during fast transients, while thermal resistance (RJL = 20 °C/W) supports reliable energy dissipation into leads under single-pulse conditions.
The 1.5KE8.2ARL4G is rated for nonrepetitive 1500 W peak power at TL ≤ 25°C per 1 ms pulse (Figure 5 waveform), with derating to 5.0 W steady-state power at TL = 75°C. It meets Class 3 ESD immunity (>16 kV HBM) and UL 497B certification for isolated loop circuit protection - confirming suitability for telecom and industrial control interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 7.02 V - maximum continuous reverse voltage before significant leakage; must exceed system DC/peak operating voltage |
| VBR @ IT=10 mA | 7.79–8.61 V - guaranteed breakdown range; defines turn-on threshold for transient suppression |
| VC @ IPP=124 A | 12.1 V - maximum clamped voltage seen by protected circuit during worst-case 1 ms surge |
| IPP | 124 A - peak surge current the device safely handles without degradation |
| Response Time | <1 ns - enables suppression of fast-rising ESD and switching transients before downstream IC damage |
| Leakage @ VRWM | <200 µA - negligible standby power loss and signal integrity impact in high-impedance circuits |
| Package | Axial lead, Case 41A - industry-standard through-hole footprint with 0.335–0.374 in body length and 0.189–0.209 in diameter |
Pinout & Package
1.5KE8.2ARL4G uses an axial-leaded plastic package (Case 41A) with polarity indicated by a cathode band. Leads are tin-plated copper, solderable at 260°C for 10 seconds at 1/16 in from case. Mounting position is unrestricted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to circuit ground or lowest potential node; completes conduction path during reverse surge |
| Cathode | High-side transient input terminal | Connected to line being protected (e.g., VIN, signal line); carries full IPP during clamping event |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W Peak Pulse Power | Enables robust protection against IEC 61000-4-5 Level 4 (4 kV/2 Ω) surges without derating or parallel devices |
| UL 497B Recognition | Validates compliance for use in isolated data/telecom loops - eliminates need for separate safety certification testing |
| ESD Rating >16 kV (HBM) | Meets or exceeds IEC 61000-4-2 Level 4 requirements for system-level ESD immunity |
| Low Clamping Ratio (VC/VBR ≈ 1.48) | Minimizes overvoltage stress on protected ICs - critical for 5 V and 3.3 V logic interfaces |
| Pb-Free Axial Package | Complies with RoHS Directive 2011/65/EU and JEDEC J-STD-020 reflow profiles for lead-free assembly |
Applications
| Power Supply Input Protection | RS-485/422 Interface Protection |
|---|---|
Use Scenario: Installed across DC input rails of AC/DC adapters and DC-DC converters to absorb line transients and load dump spikes. IC Role / Device Role / Timing Role: Unidirectional TVS clamp limiting voltage excursion to ≤12.1 V during 124 A surges. Use Value: Prevents overvoltage failure of primary-side controllers and secondary-side LDOs without adding series impedance or affecting regulation. | Use Scenario: Placed between differential bus lines (A/B) and ground in industrial RS-485 nodes exposed to cable ESD and induced surges. IC Role / Device Role / Timing Role: Fast-response shunt element that clamps common-mode transients before receiver input stages saturate. Use Value: Maintains signal integrity under IEC 61000-4-4 EFT bursts and sustains >250 kbps data rates due to sub-1 ns turn-on. |
| Medical Equipment ESD Shielding | Programmable Logic Controller I/O Protection |
Use Scenario: Mounted at front-panel connectors of patient monitors and diagnostic imaging systems to meet IEC 60601-1-2 ESD requirements. IC Role / Device Role / Timing Role: Primary board-level ESD suppressor meeting Class 3 (>16 kV HBM) immunity per design validation. Use Value: Eliminates need for additional TVS arrays or ferrite beads while preserving low-capacitance signal paths for analog sensor inputs. | Use Scenario: Integrated into digital input modules of PLCs to protect optocoupler inputs from field-wiring transients and ground bounce. IC Role / Device Role / Timing Role: High-energy shunt device absorbing 1500 W surges induced by relay coil de-energization or motor drive noise. Use Value: Extends mean time between failures (MTBF) of input conditioning circuits in harsh factory environments with minimal BOM cost increase. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A | Surface-mount SMB package; lower 600 W peak power; 12.5 V clamping at 48.8 A | Requires PCB redesign for SMT layout; better suited for space-constrained consumer electronics | Select when automated assembly and board density outweigh axial lead serviceability and higher surge rating |
| 1N6269A | Same die and electrical specs; axial lead but Pb-bearing (non-RoHS) packaging; obsolete per ON Semi preferred list | Not compliant with current environmental regulations; limited lifecycle availability | Only acceptable for legacy repair or non-RoHS exempt programs; avoid for new designs |
Compared with SMBJ8.0A and 1N6269A, the 1.5KE8.2ARL4G delivers superior surge handling (124 A vs. 48.8 A) in a RoHS-compliant axial package - making it optimal for industrial power entry and retrofit applications where mechanical robustness and regulatory compliance are mandatory.
Availability
1.5KE8.2ARL4G is available at Aetrix Electronics and suitable for power supply input protection, RS-485 interface hardening, medical equipment ESD shielding, and PLC I/O protection requiring stable component supply across multi-year production cycles.
Supply support for 1.5KE8.2ARL4G 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, sensing, and connectivity solutions for automotive, industrial, cloud, and IoT applications.
The 1.5KE8.2ARL4G belongs to the 1.5KE Series Mosorb™ TVS family - engineered specifically for high-reliability, high-surge industrial and communications infrastructure where axial-leaded robustness and UL 497B certification are required.
FAQ
What is the maximum clamping voltage of the 1.5KE8.2ARL4G under surge conditions?
The 1.5KE8.2ARL4G has a maximum clamping voltage (VC) of 12.1 V when subjected to its rated peak pulse current of 124 A (1 ms exponential decay waveform per Figure 5). This value is measured at TA = 25°C and guarantees the protected circuit will not experience more than 12.1 V during worst-case transient events - critical for ensuring compatibility with 5 V and 3.3 V logic interfaces. The 1.5KE8.2ARL4G maintains this performance across its qualified temperature range.
Is the 1.5KE8.2ARL4G RoHS-compliant and lead-free?
Yes, the "G" suffix in 1.5KE8.2ARL4G explicitly denotes a Pb-free package per JESD97 and RoHS Directive 2011/65/EU. The device uses tin-plated copper leads and a void-free thermosetting plastic body (Case 41A), qualified for standard lead-free reflow and wave soldering processes. ON Semiconductor confirms full compliance in its official packaging documentation and material declarations - no exemptions apply to the 1.5KE8.2ARL4G.
How does the 1.5KE8.2ARL4G differ from the 1.5KE8.2A variant?
The 1.5KE8.2ARL4G differs from the 1.5KE8.2A primarily in packaging and shipping format: "RL4G" indicates tape-and-reel packaging (1500 units per reel) with Pb-free construction, whereas "A" alone typically denotes bulk or box packaging without explicit RoHS designation. Electrical specifications, thermal ratings, and mechanical dimensions are identical between 1.5KE8.2ARL4G and 1.5KE8.2A - both share the same die, Case 41A outline, and full 1.5KE Series characterization.
Can the 1.5KE8.2ARL4G be used in bidirectional configurations?
No, the 1.5KE8.2ARL4G is strictly unidirectional and must be installed with correct polarity (cathode toward the protected line, anode to ground). It lacks symmetrical breakdown characteristics and will not suppress positive transients on the anode side. For bidirectional protection, two 1.5KE8.2ARL4G devices may be connected in series opposing configuration, but this increases cost and board area versus purpose-built bidirectional TVS diodes like the P6KE8.2CA.
What is the thermal resistance and steady-state power rating of the 1.5KE8.2ARL4G?
The 1.5KE8.2ARL4G 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, derating linearly above that temperature at 20 mW/°C. This rating applies only to continuous DC or low-frequency reverse bias conditions - not transient suppression duty cycles. The 1.5KE8.2ARL4G is not intended for sustained power dissipation; its design focus is short-duration surge absorption.
1.5KE8.2ARL4G 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):
- 7.02V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 124A
- 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
1.5KE8.2ARL4G FAQ
1.How can I place an order for 1.5KE8.2ARL4G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE8.2ARL4G 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 1.5KE8.2ARL4G reliable?
The price and inventory of 1.5KE8.2ARL4G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE8.2ARL4G is usually 5 days.
3.What payment methods are accepted for 1.5KE8.2ARL4G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE8.2ARL4G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE8.2ARL4G?
1.5KE8.2ARL4G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE8.2ARL4G 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 1.5KE8.2ARL4G?
For technical support, including 1.5KE8.2ARL4G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE8.2ARL4G requirements.
6.How does Aetrix verify that 1.5KE8.2ARL4G is sourced from the original manufacturer or authorized distributors?
All 1.5KE8.2ARL4G 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 1.5KE8.2ARL4G meets industry standards.
7.What is the process for return or replacement of 1.5KE8.2ARL4G?
All 1.5KE8.2ARL4G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE8.2ARL4G, 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 1.5KE8.2ARL4G part is unused and in its original packaging.
Return procedure for 1.5KE8.2ARL4G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE8.2ARL4G Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
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ESD5Z3.3T1G
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D5V0P1B2LP-7B
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DESD5V0U1BA-7
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ESD5Z5.0T1G
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
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PESD2V0Y1BSFYL
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DF2S5M4CT,L3F
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