RF Switch IC 4210-52 Equivalent & Substitute Parts

Part Overview

The pSemi 4210-52 is a general-purpose RF switch IC with SPDT (Single Pole Double Throw) topology, designed for applications requiring RF signal routing across the 10MHz to 3GHz frequency range. This component operates at 50Ohm impedance with DC blocking and single-line control functionality. The 4210-52 is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations.

Substiute Parts

4210-52

pSemiIn Stock: 10234210-52 Datasheet

Current PartRFQ

PE4250MLI-Z

pSemiIn Stock: 2978PE4250MLI-Z Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 4210-52 is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Circuit topology: SPDT configuration
• Frequency range: Minimum coverage of 10MHz ~ 3GHz
• Impedance: 50Ohm
• Package type: 8-TSSOP or 8-MSOP form factor
• Mounting type: Surface Mount
• Operating temperature range: -40°C ~ 85°C minimum

Performance Parameters: Substitute parts must maintain or exceed the electrical performance specifications of the original component, including isolation, insertion loss, P1dB, and IIP3 ratings. Supply voltage compatibility must be verified for the target application.

The PE4250MLI-Z meets all mandatory compatibility criteria and represents an active product with enhanced electrical performance characteristics compared to the obsolete 4210-52.

Parameter Comparison

Engineering Selection Recommendations

The PE4250MLI-Z is the direct substitute for the obsolete 4210-52. Both components share identical package geometry, mounting type, and core frequency range specifications. The PE4250MLI-Z is an active product with full manufacturing support and improved electrical performance across isolation, P1dB, and IIP3 parameters.

The PE4250MLI-Z provides expanded supply voltage options (3V ~ 3.6V and 4.5V ~ 5.5V) compared to the 4210-52 (2.7V ~ 3.3V), offering greater design flexibility. The substitute part includes RoHS compliance and REACH unaffected status, meeting modern regulatory requirements. Dual-line control capability in the PE4250MLI-Z provides additional application flexibility while maintaining backward compatibility with single-line control implementations.

Pin-to-pin compatibility and identical package dimensions ensure direct PCB layout compatibility without redesign requirements.

Frequently Asked Questions (FAQ)

Q: Can the PE4250MLI-Z directly replace the 4210-52 without PCB modifications?

A: Yes. Both components use identical 8-MSOP package geometry with 0.118" width and 3.00mm dimensions. Pin assignments and footprints are compatible, allowing direct substitution without PCB layout changes.

Q: What are the key performance differences between these parts?

A: The PE4250MLI-Z provides superior isolation (40dB vs. 25dB) and significantly higher power handling capability (P1dB of 30.5dBm vs. 14.5dBm). Insertion loss is slightly higher at 0.75dB compared to 0.45dB. IIP3 performance is substantially improved at 59dBm versus 34.6dBm.

Q: Are there supply voltage compatibility considerations?

A: The 4210-52 operates at 2.7V ~ 3.3V. The PE4250MLI-Z supports dual supply ranges: 3V ~ 3.6V and 4.5V ~ 5.5V. Verify that your application supply voltage falls within one of the PE4250MLI-Z operating ranges. The 3V ~ 3.6V range overlaps with the original part's specification.

Q: Does the PE4250MLI-Z maintain the same control interface?

A: The PE4250MLI-Z supports both single-line and dual-line control modes, providing backward compatibility with the 4210-52 single-line control implementation. Existing control circuitry requires no modification.

Q: What is the packaging difference between the 4210-52 and PE4250MLI-Z?

A: The 4210-52 is supplied in standard packaging. The PE4250MLI-Z is available in Tape & Reel (TR) format for automated assembly. Both use identical 8-MSOP package geometry.

Q: Are there regulatory compliance differences?

A: The PE4250MLI-Z is RoHS Compliant and REACH Unaffected. The 4210-52 has undefined REACH status and unspecified RoHS compliance. The PE4250MLI-Z meets current regulatory requirements for new designs and manufacturing environments.