1N5350A/TR8

Overview

The Microchip Technology 1N5350A/TR8 is a silicon 5-watt Zener diode with a nominal voltage of 12 V and ±10% tolerance. It operates within a temperature range of -65°C to +150°C, featuring a maximum reverse current of 2.0 µA at 8.6 V and a dynamic impedance of 2.5 Ω at a test current of 100 mA. The device utilizes an axial T-18-2 package and includes a TR8 suffix indicating tape and reel packaging.

Feature Summary

• Provides stable voltage regulation across broad operating currents and temperatures
• Withstands high surge stresses and exhibits minimal voltage change versus current
• Features flexible axial-lead mounting terminals for through-hole applications

Applications

• Voltage regulation in power supply circuits
• Overvoltage protection for sensitive electronic components
• Reference voltage generation in measurement systems

Procurement Notes

Verify the component origin as the datasheet originates from Microsemi, while the requested model indicates Microchip Technology. Confirm that the specific ordering suffix corresponds to the required tape and reel configuration. Ensure compatibility with existing thermal management designs due to the 5-watt dissipation rating.

Selection Notes

Select this component when a 12 V reference with moderate tolerance is required in a high-power environment. Consider the T-18-2 package dimensions for PCB layout constraints. Evaluate thermal derating requirements if ambient temperatures exceed standard limits or if heat sinking is not utilized.

Part Context

This part belongs to the JEDEC registered 1N5333 through 1N5388B series of 5-watt Zener diodes. The series covers a wide voltage selection from 3.3 to 200 volts. The 'A' suffix specifically denotes a ±10% voltage tolerance, distinguishing it from tighter tolerance variants like the B or C suffixes.

Replacement Considerations

Direct substitutes include other 1N5350 variants with different tolerances (e.g., 1N5350B for ±5%). Cross-manufacturer equivalents must be verified against the 5-watt power dissipation and 12 V Zener voltage specifications.