PS081FN Equivalent & Substitute Parts

Part Overview

The PS081FN is a resistive strain gauge interface integrated circuit manufactured by ScioSense as part of the PICOSTRAIN® series. This component is classified as an obsolete product, necessitating identification of active equivalent alternatives for ongoing design requirements and procurement needs. The PS081FN operates across an industrial temperature range of -40°C to 125°C and is designed for surface mount applications in a 56-WFQFN package configuration.

Substiute Parts

PS081FN

ScioSenseIn Stock: 2921PS081FN Datasheet

Current PartRFQ

PS09FN

ScioSenseIn Stock: 2374PS09FN Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The PS09FN is identified as the manufacturer-recommended substitute for the PS081FN. Both components are resistive strain gauge interface integrated circuits within the PICOSTRAIN® series from ScioSense. Substitution compatibility is determined by the following parameters:

• Functional classification as resistive strain gauge interface components
• Identical operating temperature range (-40°C to 125°C)
• Identical RoHS compliance status
• Identical REACH status classification
• Identical Moisture Sensitivity Level (MSL 3)
• Surface mount technology compatibility
• Same manufacturer and product series

The PS09FN differs in package configuration (40-QFN versus 56-QFN), supply current specification (2.5 µA versus 150 nA), and product status (Active versus Obsolete). These differences require evaluation based on specific application requirements and PCB layout constraints.

Parameter Comparison

Engineering Selection Recommendations

The PS09FN is the active equivalent for the obsolete PS081FN within the PICOSTRAIN® product line. Both components maintain identical compliance certifications (RoHS Compliant, REACH Unaffected) and identical environmental specifications (MSL 3, operating temperature -40°C to 125°C).

Selection of the PS09FN as a replacement requires accommodation of the following design considerations:

• Package footprint change from 56-QFN (7x7) to 40-QFN (6x6) necessitates PCB layout revision
• Supply current increase from 150 nA to 2.5 µA affects power budget calculations
• Pin count reduction from 56 to 40 pins requires functional mapping verification

The PS09FN's active product status ensures ongoing manufacturer support, availability, and compliance with current regulatory requirements, contrasting with the PS081FN's obsolete classification.

Frequently Asked Questions (FAQ)

Q: Can the PS09FN directly replace the PS081FN without PCB modifications?

A: No. The PS09FN uses a 40-QFN (6x6) package compared to the PS081FN's 56-QFN (7x7) package. PCB layout and footprint redesign is required. Pin mapping must be verified against the respective datasheets to ensure functional compatibility.

Q: What is the impact of the supply current difference between these parts?

A: The PS09FN draws 2.5 µA compared to the PS081FN's 150 nA. This represents a higher quiescent current draw. Applications with strict power consumption requirements must evaluate this increase against system power budgets.

Q: Are both parts compliant with the same regulatory standards?

A: Yes. Both the PS081FN and PS09FN are RoHS Compliant and REACH Unaffected. Both maintain MSL 3 moisture sensitivity classification with 168-hour exposure limits.

Q: Why is the PS081FN classified as obsolete?

A: The PS081FN is listed as an obsolete product by the manufacturer. The PS09FN represents the active continuation within the PICOSTRAIN® series and is the manufacturer-recommended substitute.

Q: Are there any other substitutes available for the PS081FN?

A: Based on the provided manufacturer data, the PS09FN is the identified substitute. Evaluation of alternative manufacturers' resistive strain gauge interface components would require separate technical assessment outside the scope of this equivalency reference.