ADCH-1220+

Overview

The Mini-Circuits ADCH-1220+ is a surface-mount RF choke designed for high-frequency applications. It provides a wide operational bandwidth ranging from 5 MHz to 1220 MHz. The component features an inductance of 3.4 uH and a nominal impedance of 50 Ohms. Constructed with AWG32 wire, it offers shielded performance suitable for amplifier, diode, and antenna circuits. The physical dimensions are 7.87 mm in length, 5.59 mm in width, and 5.23 mm in height, housed in the CD637 case style.

Feature Summary

• Wide bandwidth coverage from 5 MHz to 1220 MHz
• Surface mount construction with shielded design
• Optimized for RF signal integrity in compact layouts

Applications

• Amplifier biasing networks
• Diode circuit isolation
• Antenna feed line chokes

Procurement Notes

Verify the specific part number suffix to ensure correct impedance and packaging configuration. Confirm RoHS compliance status if required by project specifications. Cross-reference the datasheet version to validate electrical parameters against current production standards. Ensure storage conditions align with manufacturer recommendations for surface-mount components.

Selection Notes

Select this component when a broad frequency range up to 1.2 GHz is required for RF choking. Consider the 50 Ohm impedance match for standard transmission lines. Evaluate the physical footprint constraints against the CD637 package dimensions. Assess thermal management requirements based on the continuous current rating specified in the official documentation.

Part Context

This RF choke belongs to Mini-Circuits' series of surface-mount inductors intended for radio frequency applications. It complements other broadband chokes in the product line, offering consistent performance across diverse system designs. The component supports modern PCB assembly techniques due to its surface-mount format.

Replacement Considerations

Check for direct substitutes such as the ADCH-1220-75+ variant if a 75 Ohm impedance is needed instead of 50 Ohms. Verify that alternative components meet the same bandwidth and inductance specifications to maintain circuit performance.