1N4755A_R2_00001

Overview

The Panjit International Inc. 1N4755A_R2_00001 is a silicon Zener diode belonging to the 1N4728A series, designed for voltage regulation and reference applications. It features a nominal Zener voltage of 43 V with a tolerance range of 40.85 V to 45.15 V at a test current (IZT) of 5 mA. The device operates within a maximum power dissipation of 1 W and utilizes a DO-41 axial plastic package. Key electrical characteristics include a maximum Zener impedance (ZZT) of 70 Ω and a maximum leakage current (IR) of 0.1 µA at 32.7 V. The component supports high-temperature soldering at 260°C for 10 seconds and complies with EU RoHS 2.0 standards.

Feature Summary

• Utilizes planar die construction within a UL 94V-O rated molded plastic DO-41 case for reliable operation.
• Features low inductance design suitable for standard circuit protection and regulation tasks.
• Supports automated assembly processes with terminals guaranteed solderable per MIL-STD-750 Method 2026.

Applications

• Voltage regulation in power supply circuits
• Voltage reference sources in electronic systems
• Overvoltage protection for sensitive components

Procurement Notes

Verify the specific ordering suffix matches the required packing type, as the 1N47xxA series is available in bulk boxes, ammo boxes, or paper reels. Confirm compliance requirements against the latest datasheet revision, as Panjit reserves the right to modify content following PCN procedures. Ensure the requested quantity aligns with standard factory packaging options such as 1K or 5K units to avoid partial reel handling issues.

Selection Notes

Select this component when a stable 43 V reference is required in axial through-hole designs. The 1W power rating allows for moderate current handling, while the DO-41 package facilitates easy manual or automated insertion. Consider the temperature coefficient and dynamic impedance specifications for precision applications, ensuring the operating junction temperature remains within the specified -55°C to +150°C range for optimal performance.

Part Context

This part belongs to the widely recognized 1N47xxA series of 1 Watt Zener diodes manufactured by Panjit International Inc. The series covers a broad voltage range from 3.3 V to 68 V, providing standardized solutions for general-purpose electronics. The 1N4755A specifically addresses the 43 V segment, offering consistent electrical characteristics aligned with industry-standard pinouts and mechanical dimensions for legacy and modern PCB layouts.

Replacement Considerations

Cross-reference with other manufacturers' 1N4755A equivalents to ensure identical voltage tolerance and package compatibility. Verify that substitute parts meet the same 1W power dissipation and DO-41 mechanical constraints. Check for any differences in thermal resistance or leakage current specifications that might impact circuit stability under varying temperature conditions.