SMAJ4748A-TP

Single Zener Diodes Overview

The SMAJ4748A-TP is a 1.0 Watt surface mount silicon Zener diode manufactured by Micro Commercial Components (MCC). It features a nominal Zener voltage of 22V with a tolerance of ±5%. The device operates within a junction temperature range of -65°C to +150°C and utilizes the SMA (DO-214AC) package. Key electrical parameters include a maximum DC Zener current of 41mA, a dynamic impedance of 23 Ohms at the test current of 11.5mA, and a maximum reverse leakage current of 5µA at 16.7V.

Single Zener Diodes Feature Summary

• Halogen-free 'Green' device construction meeting environmental standards
• Moisture sensitivity level 1 classification for reliable surface mount processing
• Epoxy material complies with UL 94 V-0 flammability rating requirements

Single Zener Diodes Applications

• Voltage regulation in power supply circuits
• Over-voltage protection for sensitive electronic components
• Reference voltage generation in measurement systems

Single Zener Diodes Procurement Notes

Verify authenticity through authorized MCC distributors or direct procurement channels to avoid counterfeit parts. Confirm the specific ordering suffix matches the required packing configuration. Ensure compliance with RoHS directives and check for any recent product change notifications that may affect specifications or packaging details prior to finalizing orders.

Single Zener Diodes Selection Notes

Select this component when a precise 22V reference is required in a compact surface mount footprint. Consider the 1W power dissipation capability and thermal resistance values for adequate heat management. Evaluate the low leakage current and tight voltage tolerance against circuit requirements to ensure stable performance across the specified operating temperature range.

Single Zener Diodes Part Context

This part belongs to the SMAJ4733A through SMAJ4764A series of 1.0 Watt Zener diodes. The series covers a wide voltage range from 5.1V to 100V, all sharing the same DO-214AC package dimensions and general electrical characteristics structure. This allows for standardized board layouts across different voltage requirements within the same design family.

Single Zener Diodes Replacement Considerations

Direct replacements must match the 22V nominal voltage, 1W power rating, and SMA (DO-214AC) package. Verify that alternative manufacturers provide equivalent dynamic impedance and leakage current specifications to maintain circuit stability.