Overview
The 1N5349B is a 5 Watt Zener diode produced by ON Semiconductor, although it is also available through various distributors and manufacturers such as EIC Semiconductor Inc. This diode is part of a complete series of Zener diodes known for their tight limits and superior operating characteristics, thanks to silicon-oxide passivated junctions. The 1N5349B is packaged in an axial lead, transfer-molded plastic case, providing protection in all common environmental conditions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Zener Voltage | 12 | V |
| Zener Voltage Tolerance | ±5% | - |
| Power Dissipation | 5 | W |
| Reverse Current at 9.1V | 2μA | - |
| Impedance at Zener Voltage | 2.5Ω | - |
| Operating Temperature Range | -65°C to 200°C | - |
| Package Type | DO-201AE, Axial | - |
| Lead Temperature for Soldering | 260°C (1/16in from case for 10sec) | - |
| Polarity | Cathode band | - |
| Weight | 0.032 ounces (0.9 grams) | - |
Key Features
Zener Voltage Range: The 1N5349B has a specified Zener voltage of 12V, though the series ranges from 3.3V to 200V.
ESD Rating: Class 3 (>16 kV) per Human Body Model.
Surge Rating: Up to 180 W @ 8.3 ms.
Maximum Limits Guaranteed: On up to six electrical parameters.
Pb-Free Packages: Available for RoHS compliance.
Environmental Protection: Packaged in a transfer-molded plastic case, providing protection in all common environmental conditions.
Applications
The 1N5349B Zener diode is used for voltage regulation over a broad range of operating voltages, currents, and temperatures. It is suitable for various applications including:
- Voltage regulation in power supplies
- Overvoltage protection
- Signal clipping and clamping
- Automotive, communications, computing, consumer, industrial, LED lighting, medical, military/aerospace, and power supply applications.
Q & A
- What is the Zener voltage of the 1N5349B diode?
The Zener voltage of the 1N5349B diode is 12V with a tolerance of ±5%.
- What is the power dissipation of the 1N5349B diode?
The power dissipation of the 1N5349B diode is 5 Watts.
- What is the operating temperature range of the 1N5349B diode?
The operating temperature range of the 1N5349B diode is -65°C to 200°C.
- What is the package type of the 1N5349B diode?
The package type of the 1N5349B diode is DO-201AE, Axial.
- Is the 1N5349B diode RoHS compliant?
- What is the ESD rating of the 1N5349B diode?
The ESD rating of the 1N5349B diode is Class 3 (>16 kV) per Human Body Model.
- What is the surge rating of the 1N5349B diode?
The surge rating of the 1N5349B diode is up to 180 W @ 8.3 ms.
- How is the polarity of the 1N5349B diode indicated?
The polarity of the 1N5349B diode is indicated by a cathode band.
- What are the typical applications of the 1N5349B diode?
The 1N5349B diode is typically used for voltage regulation, overvoltage protection, signal clipping, and clamping in various industrial and consumer applications.
- Who is the primary manufacturer of the 1N5349B diode?
The primary manufacturer of the 1N5349B diode is ON Semiconductor, though it is also distributed by other companies like EIC Semiconductor Inc.
