Equivalent & Substitute Parts for INA281B5IDBVT

Part Overview

The INA281B5IDBVT from Texas Instruments is a current sense amplifier, intended for use in applications requiring precision current measurement. It is packaged in SOT-23-5 and features a single circuit configuration. The part is listed as "Last Time Buy", indicating limited future availability and a potential end-of-life scenario. For production continuity and long-term availability, it may be necessary to identify substitute or equivalent components that match the electrical and mechanical characteristics of the INA281B5IDBVT.

Substiute Parts

INA281B5IDBVT

Texas InstrumentsIn Stock: 1303INA281B5IDBVT Datasheet

Current PartRFQ

INA281B5IDBVR

Texas InstrumentsIn Stock: 5371INA281B5IDBVR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for current sense amplifiers such as INA281B5IDBVT is determined strictly by matching key parameters, including amplifier type, electrical specifications (slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, supply voltage range), mechanical features (number of circuits, mounting type, package/case, supplier device package), and compliance certifications (RoHS, MSL, REACH, ECCN, HTSUS). Only parts with identical or explicitly compatible parameters and package characteristics are eligible as substitutes in this category.

Parameter Comparison

Engineering Selection Recommendations

Since INA281B5IDBVT is marked as "Last Time Buy", continued sourcing may require transition to an equivalent part with identical electrical and mechanical specifications. INA281B5IDBVR, recommended by the manufacturer, matches all specified parameters, compliance certifications (ROHS3, REACH Unaffected), and package features. Both parts share MSL 1 (Unlimited) and ECCN EAR99 status, confirming suitability for direct substitution without compliance or certification discrepancies.

Frequently Asked Questions (FAQ)

Q1: What parameters must match for a substitute current sense amplifier in this category?
A1: The key parameters for substitution include amplifier type, number of circuits, slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, supply voltage range, operating temperature, mounting type, package/case, and compliance certifications.

Q2: Is the package type critical for direct substitution?
A2: Yes. Both the main part (INA281B5IDBVT) and the substitute (INA281B5IDBVR) are provided in the SC-74A, SOT-753 case and SOT-23-5 supplier device package, ensuring mechanical and footprint compatibility.

Q3: How do compliance certifications affect the part selection?
A3: RoHS, REACH, MSL, and ECCN statuses must be identical between the main and substitute parts for regulatory and process alignment. Both parts are ROHS3 Compliant, REACH Unaffected, and rated MSL 1 (Unlimited).

Q4: Does inventory status affect substitution eligibility?
A4: Inventory status is not a technical parameter but may impact procurement decisions. Engineering substitution is determined only by matching provided technical and compliance parameters.

Q5: Are there any differences between INA281B5IDBVT and INA281B5IDBVR relevant for board design?
A5: Based on the provided parameters, the two parts are equivalent in terms of electrical, mechanical, and compliance specifications. No differences are indicated affecting board design or integration.