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onsemi 1.5KE10ARL4
- Part No.:
- 1.5KE10ARL4
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1.5KE10ARL4.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:3,854
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Product details
Overview
1.5KE10ARL4 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 8.55 V working peak reverse voltage (VRWM), 10 V nominal breakdown voltage (VBR), 14.5 V maximum clamping voltage (VC) at 103 A peak pulse current (IPP), and <1 ns response time - deployed in power supplies, industrial controls, and medical equipment input stages.
For engineers reviewing the 1.5KE10ARL4 datasheet, pinout, applications, or equivalent options, key selection criteria include VRWM margin over operating DC voltage, clamping ratio (VC/VBR = 1.45), UL 497B recognition for isolated loop protection, and axial lead (Case 41A) thermal performance with 20 °C/W junction-to-lead resistance.
Technical Context
This TVS operates as a voltage-clamped shunt protector: under normal bias it presents <5 µA leakage above VRWM; during transients exceeding VBR, it avalanches into low-impedance conduction to clamp voltage at VC. Its Surmetic axial-leaded plastic package enables direct PCB mounting with 260 °C soldering tolerance and polarity band marking for cathode identification.
The device complies with Class 3 HBM ESD rating (>16 kV), meets UL 497B for isolated loop circuit protection, and delivers 1500 W nonrepetitive peak power at 1 ms pulse width per Figure 5 waveform - derated linearly above 25 °C ambient or 75 °C lead temperature per published curves.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 8.55 V - maximum continuous reverse voltage before significant leakage; must exceed system DC/peak operating voltage |
| VBR @ IT=1 A | 9.5–10.5 V - avalanche onset range; defines minimum clamping threshold under standardized test current |
| VC @ IPP=103 A | 14.5 V - maximum clamped voltage during 1 ms 103 A surge; determines worst-case stress on protected IC |
| PPK | 1500 W @ 1 ms - peak transient energy handling capacity; validates suitability for IEC 61000-4-5 Level 4 surges |
| Response Time | <1 ns - enables suppression before downstream CMOS/MOS gate oxide breakdown occurs |
| Leakage @ VRWM | <10 µA - ensures negligible standby power loss and signal integrity in high-impedance circuits |
| UL Recognition | UL 497B QVGQ2 - certified for telecom/data line isolation barrier protection, not just flammability |
Pinout & Package
Package: Axial lead, Case 41A (Surmetic thermosetting plastic), cathode indicated by color band. Dimensions: A = 8.5–9.5 mm length, B = 4.8–5.3 mm diameter, D = 0.96–1.06 mm lead diameter, K = 25.4 mm lead length.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to circuit ground or lowest potential node; completes shunt path during avalanche |
| Cathode | High-side transient input terminal | Connected to protected line (e.g., DC input, signal trace); polarity band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W Peak Pulse Power | Validates robustness against 10/1000 µs lightning surges up to 103 A without degradation |
| Clamping Ratio VC/VBR = 1.45 | Minimizes overvoltage stress on downstream components compared to higher-ratio TVS devices |
| UL 497B Certification | Enables use in safety-critical isolated loop interfaces (e.g., RS-485, PoE injectors) without additional certification effort |
| ESD Rating >16 kV HBM | Provides intrinsic handling protection during assembly and field service without external ESD safeguards |
| Low Zener Impedance | Ensures stable clamping under fast-rising transients (<1 ns), reducing overshoot in high-dI/dt events |
Applications
| AC/DC Power Supply Input Protection | Industrial PLC Digital I/O Protection |
|---|---|
Use Scenario: Installed across AC rectifier output or DC bus input to absorb line surges and switching spikes. IC Role / Device Role / Timing Role: Shunt clamping element that diverts surge current away from bridge rectifier, bulk capacitor, and controller IC. Use Value: Prevents repeated overvoltage failure of 12–24 V control logic by limiting transient excursions to ≤14.5 V. | Use Scenario: Placed on discrete 24 V digital input channels of programmable logic controllers. IC Role / Device Role / Timing Role: First-line defense against induced surges from relay coil flyback or nearby motor drives. Use Value: Maintains signal integrity during 1 kV/500 A surge tests per IEC 61000-4-4, avoiding false triggering or latch-up. |
| Medical Equipment Power Entry | Telecom Line Interface Protection |
Use Scenario: Mounted at mains entry point of diagnostic imaging or patient monitoring systems. IC Role / Device Role / Timing Role: UL 497B-recognized protector for isolated power supply primary side. Use Value: Meets regulatory requirement for transient immunity while minimizing creepage/clearance impact on PCB layout. | Use Scenario: Integrated into RJ45 Ethernet port protection circuits for PoE-powered access points. IC Role / Device Role / Timing Role: Secondary-level clamp following gas discharge tube (GDT) primary protection. Use Value: Clamps residual surges to safe levels (<14.5 V) after GDT crowbarring, protecting PHY transceivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A | Surface-mount SMB package; 1000 W PPK; VRWM = 8.55 V; VC = 17.0 V @ 87.7 A | Higher clamping voltage (17.0 V vs. 14.5 V); lower surge current rating; requires SMT reflow process | Select when board space is constrained and 17 V clamping is acceptable for protected IC VDD tolerance |
| 1N6271AG | Same axial package and electrical specs; Pb-free variant with identical VRWM/VBR/VC/IPP; different tape-and-reel packaging | No functional difference; identical performance and footprint; differs only in packaging format (bulk vs. tape/reel) | Select when procurement requires bulk box delivery instead of 1500-unit tape-and-reel reels |
Compared with SMBJ10A and 1N6271AG, the 1.5KE10ARL4 offers superior surge handling (1500 W vs. 1000 W), tighter clamping (14.5 V vs. 17.0 V), and axial through-hole mounting compatibility - making it optimal for high-reliability industrial power entry designs requiring UL 497B validation and manual assembly support.
Availability
1.5KE10ARL4 is available at Aetrix Electronics and suitable for AC/DC power supplies, industrial PLC I/O modules, and medical equipment power entry circuits requiring stable component supply, long-term lifecycle assurance, and UL-recognized surge protection.
Supply support for 1.5KE10ARL4 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 power management, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and IoT applications.
The 1.5KE10ARL4 belongs to the 1.5KE Series Mosorb TVS family, engineered specifically for high-energy transient suppression in cost-sensitive, high-volume industrial and medical power systems where reliability, UL compliance, and axial mounting are critical.
FAQ
What is the maximum clamping voltage of the 1.5KE10ARL4 under standard surge conditions?
The 1.5KE10ARL4 has a maximum clamping voltage (VC) of 14.5 V when subjected to its rated peak pulse current of 103 A with a 1 ms waveform. This value is measured per Figure 5 in the official datasheet and represents the worst-case voltage seen by protected circuitry during a full-power transient event. Designers must ensure downstream components tolerate ≥14.5 V to guarantee reliable operation.
Does the 1.5KE10ARL4 meet UL safety standards for isolated circuit protection?
Yes, the 1.5KE10ARL4 is UL Recognized under standard UL 497B (File #E210057, category QVGQ2) for protectors used in isolated loop circuits. This certification covers dielectric withstand, endurance conditioning, and strike voltage breakdown testing - confirming its suitability for telecom interfaces, PoE injectors, and other safety-isolated applications where basic insulation barriers require validated transient protection.
What is the working peak reverse voltage (VRWM) specification for the 1.5KE10ARL4?
The 1.5KE10ARL4 has a working peak reverse voltage (VRWM) of 8.55 V, meaning it can continuously block up to this DC or peak AC voltage without exceeding 10 µA leakage current. This parameter is critical for selecting the correct TVS: VRWM must be ≥ the maximum steady-state voltage on the protected line, such as 8 V DC rails or rectified 6 V AC peaks, to avoid false triggering.
How does the 1.5KE10ARL4 differ from the 1.5KE10A in terms of packaging and compliance?
The 1.5KE10ARL4 uses the same Case 41A axial package as the 1.5KE10A but is explicitly marked with the "RL4" suffix indicating Pb-free construction and tape-and-reel packaging (1500 units per reel). Both share identical electrical specifications including VRWM, VBR, VC, and PPK; the RL4 variant complies with RoHS Directive 2011/65/EU and supports automated assembly processes requiring reel-fed feeders.
What thermal derating applies to the 1.5KE10ARL4 at elevated temperatures?
The 1.5KE10ARL4's peak pulse power must be derated above 25 °C ambient per Figure 2, and its steady-state power dissipation drops from 5.0 W at 75 °C lead temperature to zero at 175 °C, with a thermal resistance of 20 °C/W junction-to-lead. For sustained surge duty cycles, average power must also follow Figure 7 derating curves - e.g., at 10% duty cycle and 10 ms pulse width, peak power is reduced to ~70% of 1500 W.
1.5KE10ARL4 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):
- 8.55V
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 103A
- 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
1.5KE10ARL4 FAQ
1.How can I place an order for 1.5KE10ARL4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE10ARL4 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 1.5KE10ARL4 reliable?
The price and inventory of 1.5KE10ARL4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE10ARL4 is usually 5 days.
3.What payment methods are accepted for 1.5KE10ARL4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE10ARL4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE10ARL4?
1.5KE10ARL4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE10ARL4 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 1.5KE10ARL4?
For technical support, including 1.5KE10ARL4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE10ARL4 requirements.
6.How does Aetrix verify that 1.5KE10ARL4 is sourced from the original manufacturer or authorized distributors?
All 1.5KE10ARL4 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 1.5KE10ARL4 meets industry standards.
7.What is the process for return or replacement of 1.5KE10ARL4?
All 1.5KE10ARL4 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE10ARL4, 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 1.5KE10ARL4 part is unused and in its original packaging.
Return procedure for 1.5KE10ARL4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE10ARL4 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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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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