MA2S37700L

Overview

The MA2S37700L is a silicon epitaxial planar variable capacitance diode manufactured by Panasonic Electronic Components. Designed for VCO, VCXO, and TCXO applications, it utilizes an SS-Mini type package (SC-79) to facilitate equipment downsizing and automatic insertion via taping. The device operates with a maximum reverse voltage of 12V and a junction temperature rating of 150°C. Key electrical characteristics include a typical diode capacitance of 3.40 pF at 2V reverse bias and 1.50 pF at 10V reverse bias, both measured at 1 MHz. The component exhibits a capacitance ratio ranging from 2.20 to 2.80 and features a series resistance between 0.40 and 0.60 Ω at 470 MHz.

Feature Summary

• Utilizes SS-Mini type package for downsizing and automatic insertion
• Designed specifically for VCO, VCXO, and TCXO applications
• High junction temperature rating of 150°C

Applications

• Voltage Controlled Oscillators (VCO)
• Voltage Controlled Crystal Oscillators (VCXO)
• Temperature Compensated Crystal Oscillators (TCXO)

Procurement Notes

Verify the current lifecycle status directly with Panasonic or authorized distributors before procurement. The datasheet indicates maintenance or discontinuation categories that may affect availability. Confirm that the SC-79 package dimensions align with existing PCB footprints. Ensure design parameters remain within the specified absolute maximum ratings to prevent failure.

Selection Notes

Select this component when low parasitic capacitance and high capacitance ratios are required for frequency tuning circuits. The 12V reverse voltage limit defines the maximum tuning range. Verify that the operating frequency aligns with the specified series resistance measurement conditions. Consider the thermal management requirements given the 150°C junction temperature specification.

Part Context

This component belongs to the MA2S377 series of variable capacitance diodes. It shares the same silicon epitaxial planar technology and SS-Mini packaging as other parts in the family. The series is engineered for general electronic equipment and communications applications requiring precise capacitance control under varying reverse voltages.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for equivalent components if this specific model is discontinued.

FAQ

What is the capacitance ratio of the MA2S37700L?

The capacitance ratio (CD(2V)/CD(10V)) ranges from 2.20 to 2.80.

At what frequency is the series resistance measured?

The series resistance is measured at an absolute frequency of 470 MHz.

What is the maximum forward current rating?

The maximum forward current (IF) is rated at 20 mA.