onsemi 1.5KE10AG
- Part No.:
- 1.5KE10AG
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1.5KE10AG.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC AXIAL
- Quantity:
- Payment:

- Shipping:

Inventory:8,658
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Product details
Overview
1.5KE10AG from ON Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) diode designed for parallel clamping protection of sensitive electronics. It features a working peak reverse voltage (VRWM) of 8.55 V, breakdown voltage (VBR) of 9.5–10.5 V at 1 mA test current, clamping voltage (VC) of 14.5 V at 103 A peak pulse current, 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 1.5KE10AG datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, axial lead package details, UL 497B certification status, clamping performance under 1 ms transients, and real-world substitution guidance for industrial power interface design.
Technical Context
The 1.5KE10AG operates as a Zener-based avalanche clamp, triggered when reverse voltage exceeds its 9.5 V minimum breakdown threshold. Its low dynamic impedance ensures stable clamping at 14.5 V up to 103 A, with thermal resistance (RJL) of 20 °C/W enabling reliable power dissipation at lead temperatures ≤75 °C.
Designed for non-repetitive surge suppression per IEC 61000-4-5 waveform equivalents, it meets Class 3 ESD immunity (>16 kV HBM) and UL 497B requirements for isolated loop circuit protection. Its Surmetic axial leaded plastic case (Case 41A) supports manual or wave soldering at 260 °C for 10 seconds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 8.55 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR @ IT=1 mA | 9.5–10.5 V - Confirmed avalanche onset range, ensuring predictable turn-on margin above 8.55 V |
| VC @ IPP=103 A | 14.5 V - Clamped voltage during 1 ms surge, limiting stress on protected ICs |
| PPK | 1500 W - Peak power handling capability under standardized 1 ms transient pulse |
| IR @ VRWM | 10 μA - Low leakage ensures minimal standby power loss in high-impedance circuits |
| Response Time | <1 ns - Enables effective suppression of fast-rising ESD and switching noise transients |
| UL Recognition | UL 497B QVGQ2 - Certified for use in isolated loop telecom and industrial signal interfaces |
Pinout & Package
1.5KE10AG uses an axial-leaded Surmetic plastic package (Case 41A), with cathode identified by a polarity band. Leads are tin-plated copper, corrosion-resistant, and solderable at 260 °C for 10 seconds at 1/16″ from case body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or common return path in clamping configuration |
| Cathode | High-side connection point | Connected to protected line (e.g., DC input rail); polarity band marks this terminal |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Supports robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) without failure |
| Clamping ratio VC/VBR ≈ 1.45 | Delivers tight voltage control-critical for safeguarding 12 V logic rails and microcontroller I/O |
| ESD rating >16 kV HBM | Meets stringent electrostatic discharge immunity for front-panel connectors and field-serviceable ports |
| Pb-free axial package (RoHS compliant) | Enables drop-in replacement in legacy through-hole designs without requalification |
| UL 497B recognition | Validates suitability for safety-critical telecom and medical isolated interface applications |
Applications
| Industrial Power Supply Input Protection | Medical Equipment Surge Suppression |
|---|---|
Use Scenario: Installed across AC/DC adapter output or DC bus input to absorb load dump and hot-swap transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode providing parallel overvoltage clamping. Use Value: Limits voltage excursion to ≤14.5 V during 103 A surges, preventing latch-up or gate oxide rupture in downstream regulators and controllers. | Use Scenario: Placed on patient-connected sensor lines or isolated communication ports (e.g., RS-485) in diagnostic devices. IC Role / Device Role / Timing Role: Transient suppressor meeting UL 497B for isolated loop protection. Use Value: Provides certified surge immunity without compromising galvanic isolation integrity or signal fidelity. |
| Telecom Line Interface Protection | Automotive Aftermarket Electronics |
Use Scenario: Mounted at RJ-45 or FXS/FXO interface points in VoIP gateways and PBX systems. IC Role / Device Role / Timing Role: Primary surge arrestor for differential-mode transients on twisted-pair lines. Use Value: Clamps induced lightning surges to safe levels while maintaining <10 pF capacitance at VRWM to avoid signal degradation. | Use Scenario: Used in 12 V automotive accessory modules (e.g., dashcams, OBD-II adapters) exposed to load dump events. IC Role / Device Role / Timing Role: High-energy TVS for ISO 7637-2 Pulse 5a/b compliance. Use Value: Withstands 1500 W pulses up to 103 A, protecting CAN transceivers and microcontrollers from battery-line transients. |
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; 600 W PPK; VRWM = 10 V; VC = 17 V @ 33.3 A | Limited to lower-energy transients; unsuitable for 1500 W surge standards | Select when board space is constrained and surge threat level is ≤IEC 61000-4-5 Level 2 |
| 1N6271AG | Same JEDEC device code and identical electrical specs; alternate marking for 1.5KE10AG | No functional or application difference; direct manufacturer-equivalent part number | Use interchangeably where procurement or stocking preference favors JEDEC nomenclature |
Compared with SMBJ10A and 1N6271AG, the 1.5KE10AG offers superior surge energy handling (1500 W vs. 600 W), higher peak current capacity (103 A vs. 33.3 A), and axial-leaded mechanical robustness for high-vibration environments-making it preferred for industrial power entry and automotive aftermarket designs requiring proven reliability under repetitive stress.
Availability
1.5KE10AG is available at Aetrix Electronics and suitable for industrial power supply input protection, medical equipment surge suppression, and telecom line interface protection requiring stable component supply and long-term lifecycle support.
Supply support for 1.5KE10AG 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 supplier delivering energy-efficient, high-performance silicon solutions for automotive, industrial, cloud computing, and IoT applications.
The 1.5KE10AG belongs to the Mosorb 1.5KE series-a family of high-power unidirectional TVS diodes engineered specifically for cost-effective, high-reliability transient protection in power conversion, communications infrastructure, and safety-critical equipment.
FAQ
What is the maximum clamping voltage of the 1.5KE10AG under surge conditions?
The 1.5KE10AG clamps to a maximum of 14.5 V when subjected to its rated peak pulse current of 103 A (per 1 ms waveform). This value is measured per Figure 5 in the ON Semiconductor datasheet and reflects worst-case voltage seen by protected circuitry during standardized surge events. The 1.5KE10AG maintains this clamping performance across its specified temperature range and is validated for UL 497B compliance.
Is the 1.5KE10AG RoHS compliant and lead-free?
Yes, the 1.5KE10AG is Pb-free and RoHS compliant, as indicated by the "G" suffix in its part number per ON Semiconductor's packaging standard. Its Surmetic axial leaded plastic package (Case 41A) uses lead-free terminations and conforms to JEDEC J-STD-020 moisture sensitivity level (MSL) requirements for through-hole assembly. The 1.5KE10AG is documented in the official ON Semiconductor Pb-Free Packaging Brochure.
Does the 1.5KE10AG have UL recognition, and for which standard?
Yes, the 1.5KE10AG carries UL recognition under standard UL 497B (File #E210057, category QVGQ2) for protector-class isolated loop circuit protection. This certification covers dielectric withstand, endurance conditioning, and strike voltage breakdown testing. UL 497B recognition applies to the full 1.5KE6.8A–1.5KE250A series, including the 1.5KE10AG, and is explicitly stated in the October 2011 datasheet revision.
What is the working peak reverse voltage (VRWM) of the 1.5KE10AG, and why does it matter?
The 1.5KE10AG has a VRWM of 8.55 V-the maximum continuous reverse voltage it can block without entering conduction. This parameter ensures the 1.5KE10AG remains non-conductive during normal 12 V system operation while still triggering reliably during overvoltage events. Selecting a VRWM ≥ operating voltage prevents false triggering, and the 1.5KE10AG's 8.55 V rating makes it ideal for 9–12 V DC rails where margin above nominal voltage is required.
How does the 1.5KE10AG compare to bidirectional TVS diodes in surge protection?
The 1.5KE10AG is unidirectional and optimized for DC line protection where polarity is fixed (e.g., +12 V inputs), offering lower clamping voltage (14.5 V) than equivalent bidirectional parts. Bidirectional variants like 1.5KE10CA would clamp symmetrically but exhibit higher VC (~23 V) due to dual-junction architecture. For single-polarity applications, the 1.5KE10AG delivers tighter voltage control and better energy efficiency-key advantages confirmed in ON Semiconductor's comparative application notes.
1.5KE10AG 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):
- 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
1.5KE10AG FAQ
1.How can I place an order for 1.5KE10AG through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE10AG 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 1.5KE10AG reliable?
The price and inventory of 1.5KE10AG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE10AG is usually 5 days.
3.What payment methods are accepted for 1.5KE10AG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE10AG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE10AG?
1.5KE10AG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE10AG 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 1.5KE10AG?
For technical support, including 1.5KE10AG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE10AG requirements.
6.How does Aetrix verify that 1.5KE10AG is sourced from the original manufacturer or authorized distributors?
All 1.5KE10AG 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 1.5KE10AG meets industry standards.
7.What is the process for return or replacement of 1.5KE10AG?
All 1.5KE10AG units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE10AG, 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 1.5KE10AG part is unused and in its original packaging.
Return procedure for 1.5KE10AG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE10AG Tags

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