1N5366B

Overview

The onsemi 1N5366B is a single-channel Zener voltage regulator diode belonging to the 1N53 series. It features a nominal Zener voltage of 39 V with a tolerance of ±5%. The device operates in a DO-15 axial lead package and supports through-hole mounting. Key electrical parameters include a maximum steady-state power dissipation of 5 W, a reverse test current (IZT) of 30 mA, and a maximum Zener impedance (ZZT) of 14 Ω at the test current. The component withstands a surge rating of up to 180 W for an 8.3 ms pulse width.

Feature Summary

• Utilizes silicon-oxide passivated junction technology for improved operating characteristics
• Provides protection against common environmental conditions via transfer-molded plastic packaging
• Offers high reliability with guaranteed maximum limits on multiple electrical parameters

Applications

• Voltage regulation across broad operating current ranges
• Protection against transient voltage spikes and surges
• General-purpose voltage reference circuits

Procurement Notes

Verify that the ordered part number matches the specific suffix requirements for your application. Confirm whether Pb-Free packaging is required, as indicated by the 'G' suffix in ordering information. Ensure the procurement documentation references the correct datasheet revision to align with the latest electrical specifications and mechanical dimensions provided by the manufacturer.

Selection Notes

Select this component when a stable 39 V reference or regulation point is needed within the 1N53 series family. Consider the 5 W power dissipation capability and the thermal resistance characteristics when designing heat management solutions. Verify that the circuit's expected surge currents remain within the specified non-repetitive peak limits to ensure long-term device reliability.

Part Context

This device is part of the 1N53 Series, a comprehensive line of 5 Watt Zener diodes manufactured by onsemi. The series covers a wide Zener voltage range from 3.3 V to 200 V, utilizing robust axial lead packages. The 1N5366B specifically addresses applications requiring precise voltage regulation near the 39 V threshold with tight manufacturing tolerances.

Replacement Considerations

Compatible substitutes include other manufacturers' 1N5366B variants, such as those from Micro Commercial Components (e.g., 1N5366B-TP). When replacing, verify that the alternative part maintains the same 39 V nominal voltage, ±5% tolerance, and 5 W power rating to ensure functional equivalence in the existing circuit design.