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onsemi 1.5KE11AG
- Part No.:
- 1.5KE11AG
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1.5KE11AG.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:8,354
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Product details
Overview
1.5KE11AG 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 9.4 V working peak reverse voltage (VRWM), 11 V nominal breakdown voltage (VBR), 15.6 V maximum clamping voltage (VC) at 96 A peak pulse current (IPP), and sub-1 ns response time - deployed in power supplies, industrial controls, and medical equipment.
For engineers reviewing the 1.5KE11AG datasheet, pinout, applications, or equivalent options, key selection criteria include VRWM margin over operating voltage, VC vs. protected IC's absolute maximum rating, surge current capability under IEC 61000-4-5 waveforms, and UL 497B recognition for isolated loop circuit compliance.
Technical Context
The 1.5KE11AG operates as a silicon avalanche diode with sharp Zener-like breakdown characteristics, triggered when reverse voltage exceeds its 11 V VBR threshold. Its low dynamic impedance ensures stable clamping during fast transients, while thermal resistance of 20 °C/W (junction-to-lead) supports reliable energy dissipation in axial-leaded mounting configurations.
Designed for non-repetitive surge suppression, it handles 1500 W peak power per 1 ms pulse (per Figure 5 waveform), with derating above 25 °C ambient or 75 °C lead temperature. Leakage remains below 5 µA at 9.4 V VRWM, enabling minimal standby power impact in always-on systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 9.4 V - Maximum continuous reverse operating voltage before clamping begins; must exceed system DC bus or signal swing. |
| VBR @ IT = 1 A | 10.5–11.6 V - Breakdown occurs within this range; defines minimum trigger threshold under standardized test current. |
| VC @ IPP = 96 A | 15.6 V - Maximum clamped voltage seen by protected circuit during full-rated surge; critical for IC survivability. |
| IPP | 96 A - Peak pulse current capability at 1 ms duration; determines compatibility with IEC 61000-4-5 Level 4 (4 kV/2 Ω) testing. |
| Response Time | < 1 ns - Enables suppression of fast-rising transients (e.g., ESD contact discharge) before downstream damage occurs. |
| ESD Rating | Class 3 (>16 kV HBM) - Meets stringent electrostatic discharge immunity requirements for end-user accessible ports. |
| UL Recognition | UL 497B QVGQ2 - Certified for isolated loop circuit protection, including strike voltage, endurance, and dielectric withstand tests. |
Pinout & Package
1.5KE11AG uses an axial-leaded Surmetic plastic package (Case 41A), with cathode indicated by a polarity band. Leads are tin-plated, solderable at 260 °C for 10 seconds at 1/16 inch from case. Mounting position is unrestricted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; forms return path during clamping conduction. |
| Cathode | High-side transient input terminal | Connected to protected line (e.g., DC input, signal trace); receives surge energy and initiates avalanche breakdown. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Enables robust protection against high-energy transients (e.g., 4 kV/2 Ω IEC 61000-4-5) without cascading failure. |
| Clamping ratio VC/VBR ≈ 1.42 | Delivers tight voltage control during surge events - lower ratio improves margin for 12 V rail protection. |
| UL 497B certification | Validates suitability for safety-critical isolated loop applications (e.g., telecom interfaces, sensor front-ends). |
| Pb-free axial package (G suffix) | Complies with RoHS Directive 2011/65/EU and supports lead-free reflow or hand-soldering processes. |
| Low leakage < 5 µA @ VRWM | Minimizes quiescent current draw in battery-powered or energy-harvesting systems. |
Applications
| Industrial Power Supply Input Protection | Medical Equipment Signal Line Clamping |
|---|---|
Use Scenario: 24 V DC input stage of PLC power module exposed to load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS placed across input terminals to clamp transients before they reach upstream regulators and controllers. Use Value: 15.6 V clamping voltage ensures protected 24 V LDOs and microcontrollers remain below their 20 V absolute max rating during 100 A surge events. | Use Scenario: Analog sensor interface (e.g., thermocouple amplifier) in portable diagnostic device connected to external probes. IC Role / Device Role / Timing Role: Low-capacitance TVS on differential input lines to suppress ESD without distorting µV-level signals. Use Value: Sub-1 ns response and < 5 µA leakage preserve signal integrity and battery life while passing IEC 61000-4-2 Level 4 (15 kV air/8 kV contact) testing. |
| Telecom Isolated Data Line Protection | Automotive Body Control Module (BCM) Interface |
Use Scenario: RS-485 transceiver port in networked building automation controller with galvanically isolated power and signal paths. IC Role / Device Role / Timing Role: UL 497B-recognized TVS on isolated side of data line to meet safety agency requirements for fault containment. Use Value: UL QVGQ2 listing confirms compliance for use in Class 2 circuits, eliminating need for additional barrier certification. | Use Scenario: LIN bus line in BCM exposed to battery transients during jump-start or alternator load dump. IC Role / Device Role / Timing Role: Primary clamping device on LIN physical layer, coordinated with series impedance to limit current into transceiver ESD structures. Use Value: 96 A IPP rating exceeds ISO 7637-2 Pulse 5a requirement (100 V/12 Ω), ensuring survivability under worst-case automotive surge conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11A | Surface-mount SMB package; 11 V VBR; 100 W peak power (vs. 1500 W); 21.5 V VC @ 5.3 A. | Lower surge capacity suits PCB space-constrained, low-energy environments (e.g., USB ports), not high-power industrial inputs. | Select SMBJ11A only when board layout prohibits axial leads and surge threat level is limited to IEC 61000-4-2 ESD only. |
| 1.5KE11CA | Bi-directional variant; same VRWM/VBR/VC ratings; symmetric clamping for AC or bipolar signal lines. | Required where protected line may experience reversible polarity transients (e.g., audio lines, AC-coupled sensors). | Choose 1.5KE11CA if bidirectional protection is needed; otherwise 1.5KE11AG offers tighter VRWM margin for DC-only rails. |
Compared with SMBJ11A, the 1.5KE11AG delivers 15× higher surge energy handling and axial-mount robustness for chassis-level protection; versus 1.5KE11CA, it provides optimized unidirectional clamping with lower leakage for DC power rails where reverse conduction is unnecessary.
Availability
1.5KE11AG is available at Aetrix Electronics and suitable for industrial power supplies, medical instrumentation, telecom infrastructure, and automotive body electronics requiring stable component supply and long-term lifecycle support.
Supply support for 1.5KE11AG 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 1.5KE11AG belongs to the Mosorb 1.5KE series - engineered for high-reliability transient suppression in harsh environments, with emphasis on UL-certified isolation, surge robustness, and axial-leaded mechanical durability.
FAQ
What is the maximum clamping voltage of the 1.5KE11AG under rated surge conditions?
The 1.5KE11AG exhibits a maximum clamping voltage (VC) of 15.6 V when subjected to its rated 96 A peak pulse current (IPP) with a 1 ms waveform. This value is measured per the standard test condition defined in the ON Semiconductor datasheet and represents the highest voltage the protected circuit will experience during full-rated transient suppression. Designers must ensure this clamping level stays below the absolute maximum voltage rating of downstream components.
Does the 1.5KE11AG have UL recognition, and for which standard?
Yes, the 1.5KE11AG carries UL 497B recognition under file #E210057, specifically certified for isolated loop circuit protection (QVGQ2 category). This validation covers performance in strike voltage breakdown, endurance conditioning, temperature stability, dielectric withstand, and discharge testing - confirming suitability for safety-critical telecom, industrial, and medical applications where regulatory compliance is mandatory.
What is the working peak reverse voltage (VRWM) specification for the 1.5KE11AG?
The 1.5KE11AG has a working peak reverse voltage (VRWM) of 9.4 V, meaning it remains in high-impedance blocking mode up to this DC or continuous peak voltage level. This parameter is critical for proper selection: VRWM must be ≥ the maximum steady-state voltage on the protected line to prevent premature conduction, while still allowing sufficient margin below the clamping voltage (VC = 15.6 V) to protect downstream ICs.
How does the 1.5KE11AG compare to bi-directional TVS diodes like the 1.5KE11CA?
The 1.5KE11AG is unidirectional and optimized for DC or single-polarity signal lines, offering lower leakage (< 5 µA @ 9.4 V) than its bi-directional counterpart 1.5KE11CA. The 1.5KE11CA provides symmetrical clamping for AC or reversible transients but sacrifices some VRWM margin and increases leakage. Use 1.5KE11AG for power rails; choose 1.5KE11CA only when bidirectional protection is required, such as on audio or differential data lines.
Is the 1.5KE11AG compatible with lead-free soldering processes?
Yes, the "G" suffix in 1.5KE11AG denotes a Pb-free Surmetic axial package compliant with RoHS Directive 2011/65/EU. It supports lead-free reflow and hand-soldering at a maximum lead temperature of 260 °C for 10 seconds at 1/16 inch from the case body, per ON Semiconductor's recommended mounting guidelines.
1.5KE11AG 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):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 96A
- 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
1.5KE11AG FAQ
1.How can I place an order for 1.5KE11AG through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE11AG 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 1.5KE11AG reliable?
The price and inventory of 1.5KE11AG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE11AG is usually 5 days.
3.What payment methods are accepted for 1.5KE11AG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE11AG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE11AG?
1.5KE11AG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE11AG 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 1.5KE11AG?
For technical support, including 1.5KE11AG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE11AG requirements.
6.How does Aetrix verify that 1.5KE11AG is sourced from the original manufacturer or authorized distributors?
All 1.5KE11AG 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 1.5KE11AG meets industry standards.
7.What is the process for return or replacement of 1.5KE11AG?
All 1.5KE11AG units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE11AG, 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 1.5KE11AG part is unused and in its original packaging.
Return procedure for 1.5KE11AG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE11AG Tags
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