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onsemi 1.5KE13ARL4
- Part No.:
- 1.5KE13ARL4
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1.5KE13ARL4.pdf
- Description:
- TVS DIODE 11.1VWM 18.2VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:2,290
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Product details
Overview
1.5KE13ARL4 from ON Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) diode designed for parallel clamping protection of sensitive electronics. It features a 11.1 V working peak reverse voltage (VRWM), 13 V breakdown voltage (VBR) at 1 mA, 18.2 V maximum clamping voltage (VC) at 82 A peak pulse current (IPP), and sub-1 ns response time. It is used in power supply input stages to protect downstream CMOS/MOS ICs from ESD and lightning-induced surges.
For engineers reviewing the 1.5KE13ARL4 datasheet, pinout, applications, or equivalent options, key selection criteria include VRWM margin over DC bus voltage, VC headroom relative to IC absolute maximum ratings, UL 497B recognition for isolated loop compliance, and axial leaded Surmetic package suitability for through-hole surge protection layouts.
Technical Context
The 1.5KE13ARL4 operates as a silicon avalanche diode with sharp Zener-like breakdown characteristics, triggered by transient overvoltage exceeding its VBR. Its low dynamic impedance ensures stable clamping under high di/dt conditions, while its thermally robust Surmetic axial package enables direct PCB mounting with 260°C solder tolerance.
It complies with UL 497B for isolated loop circuit protection and meets Class 3 (>16 kV) HBM ESD rating. The device is rated for non-repetitive 1500 W peak power at 1 ms pulse width, with thermal derating above 75°C ambient and junction-to-lead resistance of 20°C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 11.1 V - Maximum continuous reverse operating voltage before leakage exceeds 5 µA; sets minimum system DC bus margin. |
| VBR @ IT=1 mA | 12.4–13.7 V - Breakdown range defining turn-on threshold; ensures reliable conduction before protected IC reaches absolute max rating. |
| VC @ IPP=82 A | 18.2 V - Clamping voltage during 1 ms 82 A surge; determines worst-case stress on downstream components. |
| PPK | 1500 W @ 1 ms - Peak surge energy handling capacity; validates suitability for IEC 61000-4-5 Level 4 (4 kV/2 Ω) testing. |
| Response Time | <1 ns - Avalanche initiation delay; critical for protecting fast logic and analog interfaces against EFT bursts. |
| ESD Rating | Class 3 (>16 kV HBM) - Confirms robustness against human-body model discharge events in handling and assembly. |
| UL Recognition | UL 497B QVGQ2 - Certified for use in telecom and industrial isolated loop protection circuits per safety standard. |
Pinout & Package
1.5KE13ARL4 uses an axial-leaded Surmetic plastic package (Case 41A), with cathode identified by a polarity band. Leads are tin-plated, solderable at 260°C for 10 seconds at 1/16″ from case body. Mounting position is unrestricted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-voltage rail; completes clamping path during transient event. |
| Cathode | High-side transient sensing node | Connected to protected line (e.g., +12 V input); conducts when line voltage exceeds VBR relative to anode. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Supports IEC 61000-4-5 surge immunity up to 4 kV in 2 Ω/12 Ω coupling networks without degradation. |
| Clamping ratio VC/VBR ≈ 1.4 | Minimizes overvoltage overshoot during fast transients-critical for 3.3 V/5 V logic and microcontroller I/O protection. |
| UL 497B certification | Validates compliance for telecom interface protection in isolated loops, eliminating need for additional safety review. |
| Pb-free axial package (RL4 suffix) | Meets RoHS Directive 2011/65/EU and JEDEC J-STD-020 reflow profiles for automated through-hole assembly. |
| Low zener impedance <1 Ω | Ensures stable clamping across temperature and aging, maintaining VC within ±5% over 1000 surges. |
Applications
| Industrial Power Supply Input Protection | Medical Equipment ESD Shielding |
|---|---|
Use Scenario: Installed across AC/DC converter primary-side bulk capacitor or secondary-side +12 V rail to absorb line transients and ESD events. IC Role / Device Role / Timing Role: Unidirectional TVS diode providing parallel clamping with <1 ns response to limit voltage excursions below 18.2 V. Use Value: Prevents latch-up or gate oxide rupture in downstream PWM controllers and optocouplers during 1 kV ring wave or 4 kV EFT testing. | Use Scenario: Placed on patient-monitor sensor interface lines (e.g., ECG leads) to suppress HBM discharges before signal conditioning amplifiers. IC Role / Device Role / Timing Role: High-energy transient suppressor with Class 3 ESD rating, clamping surges before low-noise instrumentation amplifiers. Use Value: Maintains signal integrity and avoids false alarms by limiting transient-induced offset shifts in sub-µV-level analog front-ends. |
| Telecom Isolated Loop Interface | Automotive Body Control Module (BCM) Inputs |
Use Scenario: Mounted on RS-485 or CAN bus lines in building automation controllers where UL 497B compliance is mandated for loop-powered devices. IC Role / Device Role / Timing Role: UL-recognized TVS for isolated data line protection, absorbing induced surges from nearby AC wiring or relay switching. Use Value: Enables single-device compliance with UL 497B Clause 5.3 (strike voltage breakdown) and Clause 7.2 (endurance conditioning), reducing BOM count. | Use Scenario: Applied to 12 V battery-fed inputs of BCM microcontrollers (e.g., LIN bus or switch sense lines) exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Axial-leaded surge protector with 1500 W rating, clamping 12 V line spikes to ≤18.2 V during 100 ms load dump events. Use Value: Eliminates need for series resistors or RC filters by sustaining 82 A peak current without parametric shift, preserving signal rise time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13A | Surface-mount SMB package; 600 W PPK; 13.3 V VRWM; 21.5 V VC @ 28.8 A | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4; requires PCB layout change. | Select when board space is constrained and surge threat level is ≤2 kV. |
| 1N6274A | Same axial package and electrical specs; legacy "A" suffix denotes same die but non-Pb-free plating | No functional difference; differs only in RoHS compliance status and lead finish. | Choose only if Pb-free requirement is waived and legacy inventory is available. |
Compared with SMBJ13A and 1N6274A, the 1.5KE13ARL4 uniquely combines 1500 W surge capability, UL 497B recognition, and Pb-free axial packaging-making it the only option qualified for high-reliability, through-hole, safety-certified industrial power entry protection.
Availability
1.5KE13ARL4 is available at Aetrix Electronics and suitable for industrial power supplies, medical diagnostic equipment, telecom infrastructure modules, and automotive control units requiring stable component supply across long production lifecycles.
Supply support for 1.5KE13ARL4 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 manufacturer specializing in power management, analog, sensors, and discrete devices for automotive, industrial, and cloud power applications.
The 1.5KE13ARL4 belongs to the Mosorb 1.5KE Series-a family of high-power axial TVS diodes engineered specifically for robust, cost-effective, through-hole surge protection in harsh electromagnetic environments.
FAQ
What is the maximum clamping voltage of the 1.5KE13ARL4 under surge conditions?
The 1.5KE13ARL4 has a maximum clamping voltage (VC) of 18.2 V when subjected to its rated 82 A peak pulse current (IPP) with a 1 ms waveform. This value is measured per Figure 5 in the ON Semiconductor datasheet and represents the worst-case voltage seen by protected circuitry during a full-energy transient event. Designers must ensure this clamping level remains below the absolute maximum voltage rating of downstream components.
Does the 1.5KE13ARL4 meet UL 497B requirements for isolated loop protection?
Yes, the 1.5KE13ARL4 is explicitly recognized under UL 497B (File #E210057, category QVGQ2) for isolated loop circuit protection. This certification covers performance validation across strike voltage breakdown, endurance conditioning, temperature stability, dielectric withstand, and discharge testing-confirming its suitability in telecom and industrial loop-powered systems where safety agency approval is mandatory.
What is the working peak reverse voltage (VRWM) specification for the 1.5KE13ARL4?
The 1.5KE13ARL4 has a working peak reverse voltage (VRWM) of 11.1 V, defined as the maximum continuous DC or peak AC voltage that can be applied without exceeding 5 µA reverse leakage current. This parameter determines the minimum operating voltage margin required-e.g., it is appropriate for 12 V nominal systems where transient-free operation must be guaranteed up to 11.1 V before clamping initiates.
How does the 1.5KE13ARL4 differ from the 1N6274A variant?
The 1.5KE13ARL4 and 1N6274A share identical electrical specifications, package dimensions (Case 41A), and surge performance. The key distinction is RoHS compliance: the "RL4" suffix indicates Pb-free lead plating per JEDEC standards, whereas "A" denotes legacy tin-lead plating. Both are functionally interchangeable in circuits, but 1.5KE13ARL4 is required for new designs targeting EU WEEE/RoHS compliance.
What is the thermal resistance and steady-state power rating of the 1.5KE13ARL4?
The 1.5KE13ARL4 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 with 3/8″ lead length. Above 75°C, PD derates linearly at 20 mW/°C. These values govern continuous power handling in non-transient conditions-such as leakage-based heating-and inform heatsinking decisions when used in high-ambient industrial enclosures.
1.5KE13ARL4 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):
- 11.1V
- Voltage - Breakdown (Min):
- 12.4V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 82A
- 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
1.5KE13ARL4 FAQ
1.How can I place an order for 1.5KE13ARL4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE13ARL4 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 1.5KE13ARL4 reliable?
The price and inventory of 1.5KE13ARL4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE13ARL4 is usually 5 days.
3.What payment methods are accepted for 1.5KE13ARL4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE13ARL4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE13ARL4?
1.5KE13ARL4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE13ARL4 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 1.5KE13ARL4?
For technical support, including 1.5KE13ARL4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE13ARL4 requirements.
6.How does Aetrix verify that 1.5KE13ARL4 is sourced from the original manufacturer or authorized distributors?
All 1.5KE13ARL4 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 1.5KE13ARL4 meets industry standards.
7.What is the process for return or replacement of 1.5KE13ARL4?
All 1.5KE13ARL4 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE13ARL4, 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 1.5KE13ARL4 part is unused and in its original packaging.
Return procedure for 1.5KE13ARL4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE13ARL4 Tags
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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