TS7541L RF Switch IC Equivalent & Substitute Parts

Part Overview

The TS7541L is an RF switch integrated circuit designed for cellular applications with single-pole four-throw (SP4T) topology. This device operates across the 30MHz to 1.2GHz frequency range and is packaged in a 32-pin QFN surface mount configuration. The TS7541L carries a "Not For New Designs" product status, indicating that Tagore Technology has discontinued active development and support for this component. Identification of equivalent substitute parts is necessary for ongoing production support, design updates, and long-term supply chain continuity.

Substiute Parts

TS7541L

Tagore TechnologyIn Stock: 1187TS7541L Datasheet

Current PartRFQ

TS8541L

Tagore TechnologyIn Stock: 910TS8541L Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TS7541L is determined by the following critical parameters:

Mandatory Matching Criteria:

• Circuit configuration: SP4T topology
• RF application type: Cellular
• Package type: 32-VFQFN Exposed Pad (4x4)
• Mounting type: Surface Mount
• Supply voltage range: 2.6V ~ 5.5V (overlapping or compatible)
• Operating temperature range: -40°C ~ 85°C (matching or exceeding)
• RoHS3 compliance status

Performance Parameters Allowing Variation:

• Frequency range (may extend beyond 1.2GHz)
• Isolation specification (may differ)
• Insertion loss (may differ)
• IIP3 rating (must meet or exceed 70dBm)

The TS8541L qualifies as a substitute part because it maintains identical circuit topology, package configuration, mounting type, supply voltage compatibility, and temperature operating range. Both devices are manufactured by Tagore Technology and comply with RoHS3 requirements.

Parameter Comparison

Engineering Selection Recommendations

TS7541L Status Consideration: The TS7541L carries a "Not For New Designs" designation, indicating that Tagore Technology no longer provides active engineering support, design consultation, or guaranteed long-term availability for this component. Current inventory of 1,115 pieces represents existing stock only.

TS8541L as Active Alternative: The TS8541L is designated as an "Active" product with 875 pieces in current inventory. This device maintains full design compatibility through identical package, mounting, voltage, and temperature specifications. The TS8541L is the recommended substitute for applications requiring ongoing manufacturer support and supply chain assurance.

Compliance and Certification: Both devices comply with RoHS3 requirements and carry MSL 1 (Unlimited) moisture sensitivity ratings, ensuring equivalent handling and storage protocols. Both are classified under ECCN EAR99 and HTSUS 8542.39.0001.

Performance Trade-offs: Applications operating exclusively below 1.2GHz may retain the TS7541L if existing inventory is available. Applications requiring extended frequency coverage to 3GHz must transition to the TS8541L. The TS8541L exhibits higher insertion loss (0.87dB versus 0.4dB) and lower isolation (24dB versus 36dB); circuit design must accommodate these performance differences.

Frequently Asked Questions (FAQ)

Q: Can the TS8541L directly replace the TS7541L in existing designs?

A: Direct replacement is possible from a package and electrical interface perspective. Both devices use identical 32-VFQFN packaging, surface mount configuration, and supply voltage ranges. However, the TS8541L exhibits different insertion loss and isolation characteristics. Circuit performance must be re-evaluated to confirm acceptability of these parameter differences.

Q: What is the primary reason to substitute the TS7541L?

A: The TS7541L carries a "Not For New Designs" status, indicating discontinued active support from Tagore Technology. The TS8541L is the active equivalent offering ongoing manufacturer support and guaranteed supply chain availability.

Q: Are there frequency limitations when using the TS8541L as a substitute?

A: The TS8541L operates across 30MHz to 3GHz, which encompasses the entire 30MHz to 1.2GHz operating range of the TS7541L. No frequency-based limitations exist for applications operating within the original TS7541L specification.

Q: How do the isolation and insertion loss differences affect circuit design?

A: The TS8541L provides 24dB isolation compared to the TS7541L's 36dB, and exhibits 0.87dB insertion loss versus 0.4dB. These differences may impact signal-to-noise ratio and power efficiency. Circuit simulation and testing are required to confirm performance acceptability in specific applications.

Q: Are the moisture sensitivity and RoHS compliance identical?

A: Yes. Both devices carry MSL 1 (Unlimited) ratings and ROHS3 compliance. Handling, storage, and environmental protocols are identical for both components.

Q: What is the supply voltage compatibility between these devices?

A: Both devices operate across the identical 2.6V to 5.5V supply voltage range. No voltage regulation or power supply modifications are required for substitution.

Q: Are there any package or footprint differences?

A: No. Both devices use the 32-VFQFN Exposed Pad package in 4x4 configuration. PCB footprints, solder pad layouts, and mounting procedures are identical.