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onsemi 1.5KE16A
- Part No.:
- 1.5KE16A
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1.5KE16A.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:9,132
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Product details
Overview
1.5KE16A from ON Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) diode designed for parallel protection of sensitive electronics against ESD, lightning surges, and inductive switching transients. It features a 13.6 V working peak reverse voltage (VRWM), 16 V nominal breakdown voltage (VBR), 22.5 V clamping voltage (VC) at 67 A peak pulse current (IPP), and sub-1 ns response time. It is used in power supply input stages, industrial control I/O protection, and telecom line interfaces.
For engineers reviewing the 1.5KE16A datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage margin relative to protected IC VMAX, VRWM compatibility with DC bus voltage, surge current capability under 1 ms pulses, and UL 497B recognition for isolated loop circuit compliance.
Technical Context
The 1.5KE16A operates as a silicon avalanche diode in reverse-biased mode, entering conduction when transient voltage exceeds its VBR of 15.2–16.8 V (tested at 1 mA). Its low dynamic impedance ensures stable clamping during high-current transients up to 1500 W for 1 ms, with thermal resistance of 20 °C/W enabling reliable lead-temperature-limited dissipation.
It complies with UL 497B for isolated loop circuit protection and meets Class 3 ESD immunity (>16 kV HBM), making it suitable for systems requiring certified surge robustness without external series impedance redesign. Polarity is marked by cathode band; mounting orientation is unrestricted.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500 W @ 1 ms - sustains single high-energy transients without failure |
| Working Peak Reverse Voltage | 13.6 V - maximum continuous DC or peak AC voltage before leakage exceeds 5 µA |
| Breakdown Voltage | 15.2–16.8 V @ 1 mA - precise avalanche onset range for predictable clamping threshold |
| Clamping Voltage | 22.5 V @ 67 A - maximum voltage seen by protected circuit during full-rated surge |
| Response Time | <1 ns - limits voltage overshoot during fast-rising transients (e.g., ESD) |
| Leakage Current | <5 µA @ 13.6 V - negligible standby power loss and signal integrity impact |
| UL Recognition | UL 497B QVGQ2 - certified for use in isolated loop protection circuits per safety standard |
Pinout & Package
1.5KE16A uses an axial-leaded Surmetic plastic package (Case 41A), with cathode identified by a colored band. Leads are tin-plated, solderable at 260°C for 10 seconds at 1/16″ from case. Mounting position is unrestricted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to system ground or lowest potential node in unidirectional clamp configuration |
| Cathode | High-side transient sink | Connected to protected line; conducts surge current to ground when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W surge rating | Enables protection against IEC 61000-4-5 Level 4 (4 kV/2 Ω) surges on 24 V industrial lines without derating |
| UL 497B certification | Validates suitability for telecom and process control isolated loop interfaces without additional safety review |
| Class 3 HBM ESD rating | Provides intrinsic board-level ESD hardening for front-end connectors without supplemental TVS arrays |
| Sub-1 ns response | Minimizes overshoot in high-speed data lines (e.g., RS-485, CAN) when placed adjacent to ICs |
| Pb-free axial package | Meets RoHS compliance requirements while maintaining legacy through-hole assembly compatibility |
Applications
| Industrial PLC I/O Protection | AC/DC Power Supply Input |
|---|---|
Use Scenario: Protecting 24 V digital input modules from field-wiring induced surges and contact bounce transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed across input terminals to clamp transients before they reach optocoupler or MCU GPIO. Use Value: Prevents latch-up or permanent damage to isolation barriers and logic inputs during maintenance hot-swap events. | Use Scenario: Safeguarding primary-side rectifier and controller ICs against line-side lightning surges and load-dump spikes. IC Role / Device Role / Timing Role: Parallel-connected TVS on bulk capacitor input to absorb energy before overvoltage propagates downstream. Use Value: Eliminates need for oversized MOVs or complex active clamping, reducing BOM count and layout area. |
| Medical Equipment Signal Lines | Telecom Isolated Loop Interfaces |
Use Scenario: Shielding analog sensor inputs (e.g., ECG leads, temperature probes) from ESD and RF coupling in hospital environments. IC Role / Device Role / Timing Role: Low-leakage TVS on signal path to preserve microvolt-level accuracy while suppressing >15 kV HBM discharges. Use Value: Maintains diagnostic signal fidelity and avoids false alarms caused by transient-induced ADC saturation. | Use Scenario: Protecting 4–20 mA current-loop transmitters and receivers in building automation systems. IC Role / Device Role / Timing Role: UL 497B-certified TVS across loop terminals to meet safety isolation requirements for hazardous-area signaling. Use Value: Enables direct compliance with IEC 61326-3-1 for industrial communication ports without external barrier design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16A | Lower 600 W peak power; SMC surface-mount package; same 16 V VBR range | Designed for PCB space-constrained designs; lacks UL 497B certification | Select when automated assembly and footprint reduction outweigh certified loop protection needs |
| 1N6276A | Same JEDEC device code and electrical specs; identical axial package but non-Pb-free variant | No functional difference; differs only in lead finish and RoHS compliance status | Choose only if Pb-free requirement is waived and legacy inventory reuse is prioritized |
Compared with SMBJ16A and 1N6276A, the 1.5KE16A uniquely combines 1500 W surge capacity, UL 497B certification, and Pb-free axial packaging-making it the preferred choice for industrial and medical through-hole designs requiring certified high-energy transient immunity.
Availability
1.5KE16A is available at Aetrix Electronics and suitable for industrial PLC I/O protection, AC/DC power supply input staging, and medical sensor interface circuits requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for 1.5KE16A 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 manufacturer specializing in power management, analog, sensors, and discrete devices for automotive, industrial, and cloud power applications.
The 1.5KE16A belongs to the 1N6267A Series Mosorb TVS family, engineered specifically for cost-effective, high-reliability overvoltage protection in harsh industrial and medical environments where certified surge immunity is mandatory.
FAQ
What is the clamping voltage of the 1.5KE16A at its rated peak pulse current?
The 1.5KE16A has a maximum clamping voltage (VC) of 22.5 V when subjected to its rated peak pulse current (IPP) of 67 A under the standard 1 ms exponential waveform. This value is measured per Figure 5 in the ON Semiconductor datasheet and defines the upper voltage limit imposed on protected circuitry during full-rated surge events. Designers must ensure this clamping level remains below the absolute maximum voltage rating of downstream components.
Does the 1.5KE16A meet UL safety standards for isolated loop protection?
Yes, the 1.5KE16A carries UL 497B recognition (File #E210057, Category QVGQ2) for isolated loop circuit protection. This certification covers the entire 1.5KE6.8A–1.5KE250A series and validates performance in strike voltage breakdown, endurance conditioning, dielectric withstand, and discharge testing-making it suitable for telecom and process control loop interfaces without additional safety qualification.
What is the working peak reverse voltage (VRWM) specification for the 1.5KE16A?
The 1.5KE16A has a working peak reverse voltage (VRWM) of 13.6 V, meaning it can continuously block up to 13.6 V DC or peak AC voltage while maintaining reverse leakage below 5 µA. This parameter determines the maximum steady-state operating voltage of the protected line and must be selected ≥ the system's normal operating voltage to prevent premature conduction.
How does the 1.5KE16A differ from the 1N6276A?
The 1.5KE16A and 1N6276A share identical electrical specifications-including VRWM (13.6 V), VBR (15.2–16.8 V), VC (22.5 V), and IPP (67 A)-and belong to the same ON Semiconductor Mosorb family. The sole difference is that the 1.5KE16A carries the "G" suffix indicating Pb-free construction, whereas 1N6276A is the legacy non-Pb-free variant; both use the same Case 41A axial package.
What is the maximum allowable lead temperature during soldering for the 1.5KE16A?
The 1.5KE16A supports a maximum lead temperature of 260°C for 10 seconds at a distance of 1/16 inch (1.6 mm) from the plastic case body. This specification ensures reliable solder joint formation without damaging the internal die or molding compound, and aligns with standard IPC-J-STD-020 guidelines for leaded components.
1.5KE16A 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):
- 13.6V
- Voltage - Breakdown (Min):
- 15.2V
- Voltage - Clamping (Max) @ Ipp:
- 22.5V
- Current - Peak Pulse (10/1000µs):
- 67A
- 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
1.5KE16A FAQ
1.How can I place an order for 1.5KE16A through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE16A 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 1.5KE16A reliable?
The price and inventory of 1.5KE16A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE16A is usually 5 days.
3.What payment methods are accepted for 1.5KE16A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE16A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE16A?
1.5KE16A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE16A 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 1.5KE16A?
For technical support, including 1.5KE16A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE16A requirements.
6.How does Aetrix verify that 1.5KE16A is sourced from the original manufacturer or authorized distributors?
All 1.5KE16A 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 1.5KE16A meets industry standards.
7.What is the process for return or replacement of 1.5KE16A?
All 1.5KE16A units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE16A, 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 1.5KE16A part is unused and in its original packaging.
Return procedure for 1.5KE16A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE16A Tags
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onsemi
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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