1SMA4751-AU_R2_000A1

Single Zener Diodes Overview

The 1SMA4751-AU_R2_000A1 is a surface mount silicon Zener diode from the Panjit 1SMA4728-AU to 1SMA4757-AU series. It features a nominal Zener voltage of 30V with a tolerance range of 28.5V to 31.5V. The device operates at a maximum power dissipation of 1W and utilizes a DO-214AC (SMA) molded plastic package. Electrical characteristics include a maximum Zener impedance of 40Ω at IZT=8.5mA, a reverse leakage current of 0.1mA at VR=22.8V, and a peak forward surge current rating of 30A.

Single Zener Diodes Feature Summary

• Surface mount design optimized for board space using a JEDEC DO-214AC case
• Low inductance construction suitable for high-speed switching applications
• High temperature soldering capability at 260°C for 10 seconds
• Compliant with EU RoHS 2.0 standards and AEC-Q101 qualified

Single Zener Diodes Applications

• Voltage regulation in compact electronic circuits
• Protection against overvoltage transients
• Reference voltage generation in power supplies

Single Zener Diodes Procurement Notes

Verify that the ordering suffix matches the required reel size, as the datasheet specifies availability on both 7-inch and 13-inch reels. Confirm compliance requirements such as RoHS 2.0 and AEC-Q101 qualification align with project specifications. Ensure the SMA marking code corresponds to the specific part number to avoid substitution errors during assembly.

Single Zener Diodes Selection Notes

Select this component when a 30V Zener reference is required in a low-profile SMA package. Consider the 40Ω impedance and 1W power rating for thermal management. Verify that the operating junction temperature range of -55°C to +150°C meets environmental constraints. Check if the standard ±5% voltage tolerance satisfies circuit precision requirements.

Single Zener Diodes Part Context

This part belongs to the 1SMA47xx-AU series of surface mount Zener diodes manufactured by Panjit International Inc. The series covers a voltage range from 3.3V to 51V within the same DO-214AC footprint. The 'AU' designation indicates lead-free composition compliant with environmental directives, while the suffix denotes specific packaging configurations.

Single Zener Diodes Replacement Considerations

Direct substitutes within the same series include 1SMA4750-AU and 1SMA4752-AU. Cross-brand replacements must match the 30V nominal voltage, SMA package dimensions, and 1W power dissipation rating. Verify that alternative components meet the same AEC-Q101 automotive qualification and RoHS 2.0 compliance standards.