MA4ST1241-1141T

Overview

The MA4ST1241-1141T is a hyperabrupt silicon tuning varactor diode manufactured by MACOM Technology Solutions. It is housed in an SOD-323 surface-mount package and features a single diode configuration. The device is designed for low tuning voltage applications with a maximum repetitive peak reverse voltage of 12 V. Key electrical parameters include a nominal junction capacitance of 7.1 pF, a minimum operating temperature of -65 °C, and a maximum operating temperature of +125 °C. The forward current rating is specified at 1 mA.

Feature Summary

• Hyperabrupt silicon construction utilizing UHCVD/ion-implanted technology for superior capacitance versus voltage repeatability.
• Optimized for low series resistance and high capacitance ratio at low tuning voltages to enhance circuit efficiency.
• Surface-mount plastic packaging designed for automated assembly and cost-effective integration.

Applications

• Voltage-controlled oscillators (VCOs)
• Phase-locked loops (PLLs)
• RF tunable filters

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and configuration. Ensure compliance with RoHS directives and check moisture sensitivity levels prior to PCB assembly. Confirm lead-free status and verify that the ordering part number matches the required single or common cathode arrangement for the target design.

Selection Notes

Select this component when low tuning voltage operation and high C/V ratio are required for RF tuning circuits. The SOD-323 package suits space-constrained designs. Evaluate the 12 V reverse voltage limit and 7.1 pF nominal capacitance against the specific frequency range and tuning requirements of the application to ensure adequate performance margins.

Part Context

This part belongs to the MA4ST1200 series of hyperabrupt varactor diodes from MACOM. The series utilizes ion-implanted silicon technology to provide consistent electrical characteristics across production batches. The 1141T suffix typically denotes the SOD-323 tape-and-reel packaging format used for surface-mount assembly.

FAQ

What is the nominal junction capacitance of the MA4ST1241-1141T?

The nominal junction capacitance is 7.1 pF.

What is the maximum repetitive peak reverse voltage for this varactor?

The maximum repetitive peak reverse voltage is 12 V.

Does the MA4ST1241-1141T use a single or dual diode configuration?

It uses a single diode configuration.