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onsemi 1.5KE15A
- Part No.:
- 1.5KE15A
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1.5KE15A.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:9,138
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Product details
Overview
1.5KE15A from ON Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) diode designed for parallel clamping protection of sensitive electronics. It features a 12.8 V working peak reverse voltage (VRWM), 15 V breakdown voltage (VBR) at 1 mA test current, and clamps to 21.2 V at 71 A peak pulse current (IPP), making it suitable for power supply input surge protection in industrial equipment.
For engineers reviewing the 1.5KE15A datasheet, pinout, applications, or equivalent options, key selection criteria include VRWM margin over DC bus voltage, clamping ratio (VC/VBR = 1.41), UL 497B recognition for isolated loop circuits, ESD Class 3 (>16 kV HBM), and axial leaded CASE 41A package compatibility with through-hole PCB layouts.
Technical Context
The 1.5KE15A operates as a Zener-based avalanche diode, entering conduction when reverse voltage exceeds its specified VBR of 15 V ±5% (min 14.3 V, max 15.8 V). Its low dynamic impedance and sub-1 ns response time enable effective suppression of fast transients such as EFT (IEC 61000-4-4) and lightning-induced surges (IEC 61000-4-5).
It is rated for 1500 W non-repetitive peak pulse power at 1 ms, with thermal resistance of 20 °C/W (junction-to-lead) and steady-state power dissipation of 5.0 W at TL ≤ 75 °C. The device meets UL 497B requirements for isolated loop circuit protection and exhibits <5 µA leakage above 10 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 12.8 V - maximum continuous reverse operating voltage before clamping begins |
| VBR @ IT=1 mA | 14.3–15.8 V - ensures reliable turn-on threshold for surge detection |
| VC @ IPP=71 A | 21.2 V - clamping voltage limiting stress on downstream ICs during 1 ms surge |
| IPP | 71 A - peak surge current capability under standardized 1 ms waveform |
| Leakage Current | <5 µA @ VRWM - negligible standby power loss and signal integrity impact |
| Response Time | <1 ns - enables suppression of nanosecond-scale transients without overshoot |
| ESD Rating | Class 3 (>16 kV HBM) - qualifies for high-robustness end-equipment compliance |
Pinout & Package
1.5KE15A 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 inch from case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node for reverse-biased operation | Connected to system ground or low-side return path in clamping configuration |
| Cathode | High-impedance input during normal operation; clamping node during surge | Connected to protected line (e.g., +12 V rail); polarity band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power rating | Supports IEC 61000-4-5 Level 4 (4 kV/2 Ω) surge immunity without derating |
| UL 497B recognition | Validated for use in telecom/data line isolation barriers and safety-critical loop protection |
| Low zener impedance & fast response | Minimizes voltage overshoot during transient events, preserving MOS/CMOS gate integrity |
| Pb-free axial package (RoHS compliant) | Enables direct replacement in legacy through-hole designs without requalification |
| −65 °C to +175 °C operating range | Suitable for under-hood automotive modules and industrial motor drive environments |
Applications
| Industrial Power Supply Input Protection | Medical Equipment Surge Suppression |
|---|---|
Use Scenario: Protecting AC/DC converter primary-side inputs against lightning-induced surges on 24 V DC distribution lines. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed across input rails to clamp transients before they reach rectifier and controller ICs. Use Value: Limits voltage to 21.2 V during 71 A surge, preventing damage to 30 V-rated input capacitors and PWM controllers. | Use Scenario: Safeguarding patient-connected analog front-end inputs in diagnostic imaging systems from ESD and EFT events. IC Role / Device Role / Timing Role: Secondary-side clamping element on isolated sensor interface lines compliant with IEC 60601-1. Use Value: UL 497B certification ensures safe integration into medically approved isolated loops without additional barrier validation. |
| Communications Base Station DC Feeds | Programmable Logic Controller (PLC) I/O Modules |
Use Scenario: Hardening remote radio unit (RRU) 48 V DC power inputs against induced surges from nearby lightning strikes. IC Role / Device Role / Timing Role: Primary-level TVS on outdoor-rated power entry board, coordinated with upstream GDT and downstream filtering. Use Value: 1500 W rating handles multi-kA surge currents typical in tower-mounted telecom infrastructure. | Use Scenario: Protecting digital input channels of DIN-rail mounted PLCs exposed to inductive switching transients from solenoid valves. IC Role / Device Role / Timing Role: Discrete TVS on each 24 V digital input channel, placed adjacent to connector to minimize trace inductance. Use Value: Sub-1 ns response prevents latch-up in microcontroller GPIOs subjected to 2 kV EFT bursts per IEC 61000-4-4. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15A | Surface-mount SMB package; same VRWM (12.8 V), lower PPK (600 W), higher VC (24.4 V @ 24.4 A) | Requires PCB redesign for SMT layout; better suited for space-constrained consumer electronics | Select when board area is limited and surge threat level is moderate (IEC 61000-4-5 Level 2) |
| 1N6275AG | Same manufacturer, identical electrical specs and CASE 41A package; "G" suffix denotes Pb-free compliance | No functional or mechanical difference; JEDEC-registered alternate marking | Direct form-fit-function replacement with identical sourcing and qualification history |
Compared with SMBJ15A, the 1.5KE15A delivers 2.5× higher surge energy handling in axial through-hole format; compared with 1N6275AG, it shares identical performance but differs only in part numbering convention-making 1N6275AG a seamless drop-in alternative for legacy BOM updates.
Availability
1.5KE15A is available at Aetrix Electronics and suitable for industrial power supplies, medical instrumentation, telecommunications infrastructure, and programmable logic controller (PLC) modules requiring stable component supply across extended production lifecycles.
Supply support for 1.5KE15A 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 energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and medical markets.
The 1.5KE15A belongs to the 1.5KE Series Mosorb TVS family, engineered specifically for high-energy transient suppression in ruggedized industrial and infrastructure applications where reliability under repeated surge stress is critical.
FAQ
What is the clamping voltage of the 1.5KE15A under maximum surge conditions?
The 1.5KE15A clamps to 21.2 V when subjected to its rated peak pulse current of 71 A (1 ms exponential waveform). This VC value is guaranteed across temperature and represents the maximum voltage seen by protected circuitry during worst-case transient events, ensuring compatibility with 24 V nominal systems and 30 V-rated components.
Does the 1.5KE15A meet UL safety standards for isolated circuits?
Yes, the 1.5KE15A is UL Recognized under standard UL 497B (File #E210057) for isolated loop circuit protection. This certification covers dielectric withstand, endurance conditioning, and strike voltage breakdown testing-validating its use in telecom interfaces, medical isolation barriers, and other safety-critical applications requiring certified transient suppression.
What is the maximum working peak reverse voltage (VRWM) for the 1.5KE15A?
The 1.5KE15A has a VRWM of 12.8 V, meaning it remains in high-impedance state up to this DC or continuous peak reverse voltage. This value is selected to provide ≥10% margin above common 12 V nominal rails while ensuring reliable clamping onset before damaging overvoltage occurs in protected circuits.
Can the 1.5KE15A be used in automotive under-hood applications?
Yes, the 1.5KE15A operates across −65 °C to +175 °C and is qualified for high-reliability industrial environments. While not AEC-Q200 certified, its wide temperature range, robust surge rating, and proven field performance make it suitable for non-safety-critical under-hood functions such as body control module power input protection where full automotive qualification is not mandated.
How does the 1.5KE15A compare to the 1N6275AG in terms of electrical performance?
The 1.5KE15A and 1N6275AG are electrically identical-both specify VRWM = 12.8 V, VBR = 14.3–15.8 V, VC = 21.2 V @ 71 A, and share the same CASE 41A axial package. The "1N6275AG" designation is ON Semiconductor's JEDEC-registered part number for the same device, with "G" indicating Pb-free compliance; no performance or reliability differences exist between them.
1.5KE15A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- DO-201AD, Axial
- Series:
- Mosorb™
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 71A
- 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
1.5KE15A FAQ
1.How can I place an order for 1.5KE15A through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE15A 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 1.5KE15A reliable?
The price and inventory of 1.5KE15A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE15A is usually 5 days.
3.What payment methods are accepted for 1.5KE15A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE15A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE15A?
1.5KE15A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE15A 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 1.5KE15A?
For technical support, including 1.5KE15A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE15A requirements.
6.How does Aetrix verify that 1.5KE15A is sourced from the original manufacturer or authorized distributors?
All 1.5KE15A 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 1.5KE15A meets industry standards.
7.What is the process for return or replacement of 1.5KE15A?
All 1.5KE15A units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE15A, 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 1.5KE15A part is unused and in its original packaging.
Return procedure for 1.5KE15A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE15A Tags
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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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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Diodes Incorporated
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