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onsemi 1.5KE22AG
- Part No.:
- 1.5KE22AG
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1.5KE22AG.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:9,713
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Product details
Overview
1.5KE22AG 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 18.8 V working peak reverse voltage (VRWM), 22 V nominal breakdown voltage (VBR), 30.6 V maximum clamping voltage (VC) at 49 A peak pulse current (IPP), and sub-1 ns response time - deployed in power supplies, industrial controls, and medical equipment.
For engineers reviewing the 1.5KE22AG datasheet, pinout, applications, or equivalent options, key selection criteria include VRWM margin over operating voltage, VC vs. IC absolute maximum ratings, UL 497B certification for isolated loop protection, and axial lead (Case 41A) thermal derating above 75°C.
Technical Context
The 1.5KE22AG operates as a silicon avalanche diode with sharp Zener-like breakdown characteristics, triggered when reverse voltage exceeds its 22 V nominal VBR at 1 mA test current. Its low dynamic impedance ensures stable clamping under fast-rising transients up to 1500 W (1 ms pulse).
Designed for unidirectional operation, it conducts only during negative polarity transients relative to cathode bias, requiring correct orientation in-circuit. Its Surmetic axial-leaded plastic package (Case 41A) provides void-free molding, corrosion-resistant finish, and 260°C solderability at 1/16″ from case.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500 W @ 1 ms - sustains single high-energy surges without failure |
| Working Peak Reverse Voltage | 18.8 V - sets minimum DC/continuous operating voltage threshold before leakage rises |
| Breakdown Voltage | 22 V ±5% @ 1 mA - defines precise conduction onset under controlled test conditions |
| Clamping Voltage | 30.6 V @ 49 A IPP - maximum voltage seen by protected circuit during worst-case surge |
| Leakage Current | <5 µA @ 18.8 V - negligible standby power loss and signal interference |
| Response Time | <1 ns - enables suppression of ESD events (IEC 61000-4-2) and fast transients |
| ESD Rating | Class 3 (>16 kV HBM) - meets stringent electrostatic discharge immunity requirements |
| UL Recognition | UL 497B (QVGQ2) - certified for isolated loop circuit protection in telecom and industrial systems |
Pinout & Package
1.5KE22AG uses an axial-leaded plastic package (ON Semiconductor Case 41A), with cathode identified by a colored band. Leads are tin-plated copper, solderable at 260°C for 10 seconds at 1/16″ from case body. Mounting position is unrestricted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path | Connected to system ground or low-impedance reference; carries full surge current during clamping |
| Cathode | Protected circuit connection point | Connected to line/voltage rail being protected; polarity band marks this terminal |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse rating | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV line-to-line, 2 Ω source impedance) |
| UL 497B recognition | Validates suitability for safety-critical isolated loop interfaces in telecom and process control systems |
| Pb-free Surmetic package | Meets RoHS compliance while maintaining thermal reliability and solder joint integrity |
| Low clamping ratio (VC/VBR = 1.39) | Minimizes overvoltage stress on downstream ICs compared to higher-ratio TVS devices |
| Sub-1 ns response time | Ensures effective suppression of nanosecond-scale ESD transients before damage occurs |
Applications
| Industrial Power Supply Protection | Medical Equipment Surge Suppression |
|---|---|
Use Scenario: Input stage of AC/DC power supply exposed to lightning-induced surges on mains lines. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed across primary-side rectifier output to clamp transients before bulk capacitor and controller IC. Use Value: Limits voltage to ≤30.6 V during 49 A surge, preventing overvoltage damage to 35 V-rated electrolytic capacitors and PWM controllers. | Use Scenario: Signal isolation barrier in patient-connected diagnostic equipment (e.g., ECG front-end). IC Role / Device Role / Timing Role: UL 497B-certified TVS protecting isolated data lines between microcontroller and isolated ADC. Use Value: Maintains galvanic isolation integrity while suppressing >16 kV HBM ESD events without compromising creepage/clearance distances. |
| Programmable Logic Controller I/O Protection | Telecom Line Interface Protection |
Use Scenario: Digital input module receiving 24 V DC sensor signals in factory automation environments. IC Role / Device Role / Timing Role: Parallel-connected TVS on each input channel to absorb inductive kickback from solenoid/relay coils. Use Value: Clamps 18.8 V working voltage transients to 30.6 V within <1 ns, preserving 3.3 V logic-level interface ICs downstream. | Use Scenario: TIP/RING line protection in analog telephone interface cards for PBX systems. IC Role / Device Role / Timing Role: Primary surge protector on subscriber line interface, compliant with UL 497B for isolated loop circuits. Use Value: Withstands repeated 1500 W surges while maintaining ≤5 µA leakage at 18.8 V, ensuring minimal impact on line impedance and signaling fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22A | Surface-mount SMB package (vs. axial); lower 600 W peak power; same 22 V VBR and 33.2 V VC | Requires PCB redesign for SMT placement; better suited for space-constrained consumer electronics | Select SMBJ22A when board area is limited and surge energy is ≤600 W |
| 1.5KE22A | Same axial package and electrical specs, but non-Pb-free (SnPb lead finish) | Not RoHS-compliant; restricted in EU/China markets; identical thermal and clamping performance | Choose 1.5KE22A only if Pb-free compliance is not required and legacy inventory exists |
Compared with SMBJ22A and 1.5KE22A, the 1.5KE22AG delivers identical 1500 W surge capability and UL 497B certification in a RoHS-compliant axial package - making it optimal for industrial power entry designs where leaded through-hole mounting and regulatory compliance are mandatory.
Availability
1.5KE22AG is available at Aetrix Electronics and suitable for industrial power supplies, medical diagnostics equipment, programmable logic controller I/O modules, and telecom line interfaces requiring stable component supply and long-term lifecycle support.
Supply support for 1.5KE22AG 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 energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and medical applications.
The 1.5KE22AG belongs to ON Semiconductor's Mosorb TVS family - engineered specifically for high-reliability, high-power transient suppression in harsh industrial and safety-critical environments.
FAQ
What is the working peak reverse voltage (VRWM) of the 1.5KE22AG?
The 1.5KE22AG has a working peak reverse voltage (VRWM) of 18.8 V, meaning it remains in high-impedance blocking mode below this voltage with leakage <5 µA. This value ensures compatibility with 24 V DC systems where transient margins must exceed steady-state voltage without false triggering.
How does the clamping voltage of the 1.5KE22AG compare to its breakdown voltage?
The 1.5KE22AG exhibits a clamping voltage (VC) of 30.6 V at 49 A peak pulse current, versus a nominal breakdown voltage (VBR) of 22 V. This 1.39 clamping ratio reflects low dynamic impedance and ensures protected circuits experience minimal overvoltage during surge events.
Is the 1.5KE22AG certified for safety-critical applications?
Yes, the 1.5KE22AG carries UL 497B recognition (File #E210057, QVGQ2 category) for isolated loop circuit protection - validating its use in telecom interfaces, medical isolation barriers, and industrial control systems requiring third-party safety certification.
What package type and lead configuration does the 1.5KE22AG use?
The 1.5KE22AG uses ON Semiconductor's axial-leaded Surmetic plastic package (Case 41A), with cathode indicated by a color band. Leads are tin-plated copper, rated for 260°C soldering at 1/16″ from case for 10 seconds, and support unrestricted mounting orientation.
Does the 1.5KE22AG meet RoHS requirements?
Yes, the "G" suffix in 1.5KE22AG denotes a Pb-free package compliant with RoHS Directive 2011/65/EU. The device uses environmentally compliant materials and plating without lead, cadmium, mercury, hexavalent chromium, PBB, or PBDE.
1.5KE22AG 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):
- 18.8V
- Voltage - Breakdown (Min):
- 20.9V
- Voltage - Clamping (Max) @ Ipp:
- 30.6V
- Current - Peak Pulse (10/1000µs):
- 49A
- 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
1.5KE22AG FAQ
1.How can I place an order for 1.5KE22AG through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE22AG 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 1.5KE22AG reliable?
The price and inventory of 1.5KE22AG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE22AG is usually 5 days.
3.What payment methods are accepted for 1.5KE22AG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE22AG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE22AG?
1.5KE22AG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE22AG 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 1.5KE22AG?
For technical support, including 1.5KE22AG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE22AG requirements.
6.How does Aetrix verify that 1.5KE22AG is sourced from the original manufacturer or authorized distributors?
All 1.5KE22AG 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 1.5KE22AG meets industry standards.
7.What is the process for return or replacement of 1.5KE22AG?
All 1.5KE22AG units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE22AG, 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 1.5KE22AG part is unused and in its original packaging.
Return procedure for 1.5KE22AG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE22AG Tags
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