1N5342B

Single Zener Diodes Overview

The onsemi 1N5342B is a single silicon Zener voltage regulator diode with a nominal breakdown voltage of 6.8 V and a ±5% tolerance. It operates within the 1N53 series, utilizing silicon-oxide passivated junctions for improved stability. The device features a maximum steady-state power dissipation of 5 W at a lead temperature of 75°C and supports an operating temperature range from -65°C to +200°C. It is housed in a void-free, transfer-molded plastic axial lead package (Case 017AA/Surmetic 40) designed for through-hole mounting.

Single Zener Diodes Feature Summary

• Utilizes silicon-oxide passivated junction technology for enhanced electrical characteristics and reliability.
• Features a robust surge rating capable of handling up to 180 W during 8.3 ms pulses.
• Encased in a corrosion-resistant, transfer-molded thermosetting plastic package suitable for various environmental conditions.

Single Zener Diodes Applications

• Voltage regulation circuits requiring stable reference voltages.
• Protection against transient overvoltage events in electronic systems.
• General-purpose clipping and clamping applications.

Single Zener Diodes Procurement Notes

Verify that the specific order suffix matches the required packaging configuration, such as bulk boxes or tape and reel formats. Confirm RoHS compliance status if lead-free materials are mandated by project specifications. Ensure the procurement documentation explicitly references the correct JEDEC type number to guarantee the specified ±5% voltage tolerance is met upon delivery.

Single Zener Diodes Selection Notes

Select this component when a precise 6.8 V reference is needed with high thermal stability. The 5 W power rating allows for significant current handling compared to lower-power alternatives. Consider the axial lead form factor for designs requiring mechanical anchoring or high-vibration resistance. Evaluate the thermal resistance characteristics to ensure adequate heat dissipation under continuous DC load conditions.

Single Zener Diodes Part Context

This part belongs to the 1N53xxB family of 5 Watt Zener regulators manufactured by onsemi. The series covers a wide voltage spectrum from 3.3 V to 200 V, all sharing identical mechanical dimensions and package styles. The 'B' designation specifically indicates a tight manufacturing tolerance of ±5%, distinguishing it from standard commercial grades.

Single Zener Diodes Replacement Considerations

Cross-reference other manufacturers offering the 1N5342B JEDEC designation to verify pinout compatibility and thermal performance. Ensure any substitute maintains the same Surmetic 40 case outline to fit existing board layouts without modification.