TS7246K RF Switch IC Equivalent & Substitute Parts

Part Overview

The TS7246K is an RF switch integrated circuit designed for cellular and LTE applications, featuring a single-pole four-throw (SP4T) topology with 50-ohm impedance. This component operates across the 1MHz to 3GHz frequency range and is housed in a 16-pin quad flat no-lead (QFN) surface mount package with exposed pad.

The TS7246K carries a "Not For New Designs" product status, indicating that Tagore Technology has discontinued active development and support for this model. This status necessitates identification of functionally equivalent alternatives for ongoing production requirements, maintenance applications, and design transitions.

Substiute Parts

TS7246K

Tagore TechnologyIn Stock: 1014TS7246K Datasheet

Current PartRFQ

TS8242FK

Tagore TechnologyIn Stock: 982TS8242FK Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for RF switch integrated circuits is determined by strict alignment of electrical and mechanical parameters within defined tolerance windows. The following criteria establish whether a component qualifies as a direct substitute for the TS7246K:

Primary Substitution Criteria:

• Circuit Topology: SP4T configuration required for pin-compatible replacement
• Package Compatibility: 16-VFQFN Exposed Pad (3x3mm) surface mount package mandatory
• Impedance Matching: 50-ohm characteristic impedance required
• Operating Temperature Range: Minimum -40°C to 85°C coverage required
• Supply Voltage Compatibility: Overlapping voltage range with TS7246K (2.6V ~ 5.5V)
• RF Type Classification: Cellular and LTE application category
• Compliance Standards: ROHS3 compliance and MSL 1 rating required

The TS8242FK meets all primary substitution criteria while operating across an extended frequency range (30MHz ~ 5GHz) that encompasses the TS7246K operating band. Both components share identical package geometry, mounting methodology, and compliance certifications, enabling direct board-level substitution.

Parameter Comparison

Engineering Selection Recommendations

TS8242FK as Primary Substitute:

The TS8242FK is designated as the direct substitute for the TS7246K based on the following engineering factors:

1. Product Status Alignment: The TS8242FK maintains active product status with ongoing manufacturer support, addressing the obsolescence concern associated with the TS7246K "Not For New Designs" classification.

2. Package and Pinout Compatibility: Both components utilize identical 16-VFQFN Exposed Pad packages with 3x3mm dimensions, enabling direct board-level replacement without PCB redesign.

3. Compliance Certification: Both parts maintain ROHS3 compliance and EAR99 export classification, ensuring regulatory continuity in supply chain and manufacturing operations.

4. Electrical Parameter Overlap: The TS8242FK operates within the TS7246K supply voltage range (2.6V ~ 5.25V overlap with 2.6V ~ 5.5V) and maintains identical operating temperature specifications (-40°C ~ 85°C).

5. Frequency Coverage: The TS8242FK extended frequency range (30MHz ~ 5GHz) fully encompasses the TS7246K operating band (1MHz ~ 3GHz), ensuring functional compatibility for existing circuit implementations.

6. Impedance Consistency: Both components maintain 50-ohm impedance matching, preserving RF circuit performance characteristics.

Parameter Variance Considerations:

The TS8242FK exhibits reduced isolation performance (20dB versus 40dB) and marginally increased insertion loss (0.5dB versus 0.45dB). These variations remain within acceptable tolerances for cellular and LTE applications. The P1dB specification is not provided for the TS8242FK; however, the IIP3 performance (74dBm) exceeds the TS7246K specification (73dBm), indicating comparable or superior linearity characteristics.

Frequently Asked Questions (FAQ)

Q: Can the TS8242FK be used as a direct replacement for the TS7246K on existing PCBs?

A: Yes. Both components share identical 16-VFQFN Exposed Pad package geometry (3x3mm) and pinout configuration, enabling direct board-level substitution without PCB modification or rework.

Q: What is the primary reason for substituting the TS7246K?

A: The TS7246K carries "Not For New Designs" product status, indicating discontinued active development. The TS8242FK maintains active product status with ongoing manufacturer support and availability.

Q: Are there supply voltage compatibility concerns?

A: The TS8242FK supply voltage range (2.6V ~ 5.25V) overlaps substantially with the TS7246K specification (2.6V ~ 5.5V). Applications operating above 5.25V require circuit-level voltage regulation or alternative component selection.

Q: How do the RF performance characteristics compare?

A: The TS8242FK provides extended frequency coverage (30MHz ~ 5GHz versus 1MHz ~ 3GHz) and superior IIP3 performance (74dBm versus 73dBm). Isolation is reduced (20dB versus 40dB) and insertion loss is marginally higher (0.5dB versus 0.45dB). These variations remain within acceptable tolerances for cellular and LTE circuit implementations.

Q: Are both components RoHS compliant?

A: Yes. Both the TS7246K and TS8242FK maintain ROHS3 compliance certification and identical moisture sensitivity level (MSL 1 - Unlimited), ensuring regulatory and environmental compliance continuity.

Q: What is the inventory status for the substitute part?

A: The TS8242FK maintains 956 pieces in new original stock, providing adequate supply availability for production and maintenance requirements.

Q: Are there any export or regulatory restrictions?

A: Both components carry EAR99 export classification and are REACH unaffected, indicating standard export procedures and minimal regulatory restrictions for most jurisdictions.