1N4755AHB0G

Overview

The 1N4755AHB0G is a single-channel Zener diode manufactured by Taiwan Semiconductor, designed for voltage regulation applications. It features a nominal Zener voltage of 43 V with a tolerance of 5%. The device supports a maximum power dissipation of 1 W and operates within a temperature range of -55 °C to +150 °C. Key electrical characteristics include a maximum reverse leakage current of 5 uA and a Zener impedance of 110 Ohms at a test current of 4.5 mA. It is housed in a DO-41-2 through-hole package.

Feature Summary

• Glass passivated junction construction for enhanced environmental stability
• Built-in strain relief mechanism to protect leads during mounting
• Low inductance design suitable for high-frequency switching circuits
• High temperature soldering capability guaranteed at specified terminal conditions

Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection in low to moderate power systems
• Clamping applications in signal conditioning paths
• General purpose voltage regulation in industrial electronics

Procurement Notes

Verify the specific suffix HB0G against the manufacturer's latest datasheet to confirm RoHS compliance and lead-free status. Confirm the exact packaging quantity and reel specifications if ordering in bulk. Ensure the procurement channel provides valid traceability documentation for automotive or industrial grade requirements. Cross-reference the part number with official distributor catalogs to avoid obsolete stock.

Selection Notes

Select this component when a 43 V regulation point is required in a through-hole assembly. The 1 W power rating distinguishes it from lower-power variants like the 1N47xx series without the 'H' suffix. Consider the DO-41 package dimensions for PCB layout constraints. Evaluate the 110 Ohm impedance against circuit sensitivity requirements compared to lower impedance alternatives.

Part Context

This part belongs to the 1N4758AH family of glass passivated Zener diodes. It shares mechanical and thermal characteristics with other members of this series but differs in its specific breakdown voltage. The 'HB0G' suffix typically indicates specific packaging and material compliance attributes defined by Taiwan Semiconductor.

Replacement Considerations

Direct substitutes include the 1N4755A from other manufacturers such as Vishay or Rectron, provided they meet the same 43 V, 1 W, and DO-41 specifications. Verify that alternative sources offer equivalent Zener impedance and leakage current limits.