MA2S33100L

Overview

The MA2S331 is a silicon epitaxial planar variable capacitance diode designed for UHF wireless telegraphic VCO applications. It features an SS-Mini type package (SC-79) suitable for equipment downsizing. Key electrical characteristics include a reverse voltage rating of 12V and a forward current of 20mA. At 1MHz, the diode capacitance ranges from 6.0pF to 6.5pF at 10V reverse bias, and 17.0pF to 20.0pF at 1V. The series resistance is typically 0.22Ω at 470MHz with 9pF capacitance.

Feature Summary

• Small series resistance optimized for high-frequency performance
• Good linearity of the C-V curve for stable tuning
• SS-Mini type package facilitates equipment miniaturization

Applications

• UHF wireless telegraphic VCO circuits

Procurement Notes

Verify component status as maintenance or discontinued through official Panasonic channels before procurement. Confirm RoHS compliance documentation matches specific manufacturing batches. Ensure storage conditions adhere to specified temperature limits to maintain junction integrity prior to assembly.

Selection Notes

Select this component for designs requiring low parasitic inductance and small footprint in UHF frequency bands. Evaluate the capacitance ratio requirements against the specified range of 1.53 to 1.83 between 1V and 4V biases. Consider thermal management capabilities given the maximum junction temperature rating of 150°C during operation.

Part Context

This device belongs to the MA2S331 series of variable capacitance diodes manufactured by Panasonic Electronic Components. It utilizes silicon epitaxial planar technology to achieve consistent performance across varying reverse voltages. The SC-79 package standardizes its physical dimensions for automated surface-mount placement.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided datasheet. Consult manufacturer resources for cross-reference information regarding equivalent components with similar capacitance ratios and package types.