1N4734G A0G

Overview

The 1N4734G A0G is a silicon Zener diode manufactured by Taiwan Semiconductor Corporation, designed for voltage regulation applications. It features a nominal Zener voltage of 5.6V with a tolerance of ±5% and a maximum power dissipation of 1W at 25°C ambient temperature. The device utilizes a DO-41 through-hole package with a hermetically sealed glass compression bonded construction. Key electrical characteristics include a maximum dynamic impedance of 7Ω and a reverse leakage current of 10µA at 2V. The component operates within a junction temperature range of -65°C to +200°C and supports high-temperature soldering up to 260°C for 10 seconds.

Feature Summary

• Hermetically sealed glass compression bonded construction for corrosion resistance
• Through-hole mounting in standard DO-41 axial leaded package
• Guaranteed polarity indicated by color band on the cathode end
• Lead-free pure tin plating ensuring solderability per MIL-STD-208

Applications

• General purpose voltage regulation circuits
• Protection against voltage transients in electronic systems
• Reference voltage sources in low-power analog designs

Procurement Notes

Verify that the specific part number includes the 'G' suffix to confirm RoHS compliance and lead-free status as documented by Taiwan Semiconductor. Confirm the presence of the 'A0G' or similar lot code if traceability is required. Ensure the procurement specification matches the DO-41 package dimensions and the 1W power rating. Check for any specific screening requirements beyond standard JEDEC registration if used in critical environments.

Selection Notes

Select this component when a 5.6V regulation point is required in a through-hole design. The DO-41 package offers robust mechanical stability compared to surface mount alternatives. Consider the 1W power rating and thermal resistance values when designing heat dissipation strategies. The glass construction provides superior hermetic sealing compared to plastic encapsulated variants, suitable for harsh environments.

Part Context

This component belongs to the 1N47xx series of 1-watt Zener diodes, a widely standardized family defined by JEDEC. The 'G' suffix typically denotes RoHS compliance and lead-free termination in Taiwan Semiconductor's nomenclature. This series covers a broad voltage range from 3.3V to 56V, providing designers with extensive options for voltage reference and protection needs across various industrial and consumer electronics applications.

Replacement Considerations

Equivalent parts include the 1N4734A (standard tolerance) and 1N4734AD (tighter tolerance). Other manufacturers such as Vishay and Microsemi produce electrically compatible devices in the DO-41 package. Verify that replacement parts maintain the same 1W power rating and 5.6V Zener voltage to ensure circuit compatibility.