MA27V1900L

Overview

The MA27V1900L is a silicon epitaxial planar variable capacitance diode designed for Voltage Controlled Oscillator (VCO) applications. It features good linearity and a large capacitance ratio in the CD-VR relationship, alongside small series resistance. The device operates with a maximum reverse voltage of 6 V and a junction temperature rating of 125 °C. At 1 MHz, the diode capacitance is typically 2.50 pF at 1 V reverse bias and 1.28 pF at 3 V reverse bias, yielding a typical capacitance ratio of 2.03. The series resistance is specified as 0.35 Ω at 470 MHz under 3 V reverse bias.

Feature Summary

• Engineered for VCO applications with optimized linearity in the capacitance-voltage characteristic.
• Provides a high capacitance ratio to support wide frequency tuning ranges.
• Minimizes signal loss through low series resistance values.

Applications

• Voltage Controlled Oscillators
• General electronic equipment
• Communications equipment

Procurement Notes

Verify component authenticity by checking markings against official datasheet specifications. Confirm package integrity and pin configuration prior to assembly. Review current lifecycle status on the manufacturer's website, as this product may be subject to maintenance or discontinuation phases. Ensure compliance with RoHS directives if required by your specific application standards.

Selection Notes

Select this component when designing circuits requiring precise capacitance variation over a defined voltage range. Consider the 6 V reverse voltage limit and 125 °C junction temperature for thermal management. Evaluate the 0.35 Ω series resistance impact on circuit Q-factor at operating frequencies near 470 MHz. Verify that the SSSMini2-F1 package dimensions fit the available PCB footprint constraints.

Part Context

This part belongs to the MA27V19 series of silicon epitaxial planar variable capacitance diodes manufactured by Panasonic Industry. These components are specifically engineered for RF tuning applications where stable performance and consistent capacitance ratios are critical. The series utilizes a compact surface-mount package suitable for automated assembly processes.

Replacement Considerations

Consult the manufacturer's official cross-reference documentation for verified substitute part numbers. Ensure any replacement maintains identical electrical characteristics, particularly the capacitance ratio and series resistance values. Verify physical compatibility with the SSSMini2-F1 package before implementation.

FAQ

What is the typical capacitance ratio of the MA27V1900L?

The typical capacitance ratio (CD(1V)/CD(3V)) is 2.03, measured at 1 MHz.

What is the maximum reverse voltage rating?

The absolute maximum reverse voltage rating is 6 V.

How does the capacitance change with temperature?

The capacitance varies with ambient temperature; the normalized capacitance remains close to unity across the operating range from -25°C to +75°C at fixed reverse voltages of 1 V and 3 V.