SN293ADR Equivalent & Substitute Parts

Part Overview

The SN293ADR is a prototype-stage electronic component manufactured by Texas Instruments, currently designated as Last Time Buy with 1,075 pieces in stock. This part is classified as uncategorized within the product portfolio and carries ROHS3 compliance certification with MSL Level 1 (Unlimited moisture sensitivity rating).

Due to its Last Time Buy status, identifying functionally equivalent substitute components is essential for design continuity and long-term supply chain planning. The primary substitute identified is the LM293ADR, which shares the same manufacturer and core functional characteristics while maintaining active product status.

Substiute Parts

SN293ADR

Texas InstrumentsIn Stock: 1132SN293ADR Datasheet

Current PartRFQ

LM293ADR

Texas InstrumentsIn Stock: 80599LM293ADR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN293ADR is determined by the following criteria:

Manufacturer Consistency: Both the main part and substitute must originate from Texas Instruments to ensure design validation and quality assurance alignment.

Compliance Alignment: Both components must maintain ROHS3 compliance certification and identical MSL Level 1 rating to ensure compatibility with manufacturing processes and environmental requirements.

Functional Category: The substitute must operate within the Linear category, specifically as a General Purpose Comparator with dual differential inputs.

Electrical Specifications: The substitute must support the voltage supply range of 2V ~ 36V (single supply) or ±1V ~ 18V (dual supply), with input offset voltage not exceeding 2mV at 30V and input bias current not exceeding 0.25µA at 5V.

Output Configuration: The substitute must feature Open-Collector, Open-Drain, or Rail-to-Rail output topology with typical output current of 20mA and maximum quiescent current of 2.5mA.

Package Type: The substitute utilizes 8-SOIC surface mount packaging (0.154" width, 3.90mm) with Cut Tape or Digi-Reel supply options.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The SN293ADR is designated Last Time Buy, indicating discontinued or phase-out status. The LM293ADR maintains Active product status with significantly higher inventory availability (80,523 pieces versus 1,075 pieces), providing superior long-term supply security.

Compliance Verification: Both components satisfy ROHS3 compliance requirements and maintain identical MSL Level 1 ratings, ensuring compatibility with current manufacturing and environmental standards without process modification.

Manufacturer Continuity: Both parts originate from Texas Instruments, maintaining design validation consistency and quality assurance protocols established during original component qualification.

Functional Equivalence: The LM293ADR provides complete functional coverage for applications requiring dual differential comparator functionality with the specified electrical performance parameters and output configurations.

Supply Chain Strategy: For new designs or production continuity, the LM293ADR is the appropriate selection. For existing inventory management of the SN293ADR, the 1,075-piece stock provides interim supply while transitioning to the LM293ADR for future procurement.

Frequently Asked Questions (FAQ)

Q: Can the LM293ADR directly replace the SN293ADR in existing designs?

A: Yes. Both components are manufactured by Texas Instruments, maintain ROHS3 compliance, share identical MSL Level 1 ratings, and provide equivalent functional performance as a dual differential comparator. No design modification is required for substitution.

Q: What is the significance of the Last Time Buy status for the SN293ADR?

A: Last Time Buy designation indicates the component is no longer in active production and existing inventory represents the final available supply. Once depleted, the component will not be restocked. The LM293ADR serves as the active replacement for future procurement.

Q: Are there packaging differences between the SN293ADR and LM293ADR?

A: The LM293ADR is supplied in 8-SOIC surface mount packaging (0.154" width, 3.90mm) with Cut Tape or Digi-Reel options. The SN293ADR packaging specification is not provided in available documentation. Verify packaging compatibility with your assembly process before implementation.

Q: What are the key electrical parameters that define substitution eligibility?

A: Substitution is determined by voltage supply range (2V ~ 36V single or ±1V ~ 18V dual), input offset voltage (2mV maximum at 30V), input bias current (0.25µA maximum at 5V), output current (20mA typical), and quiescent current (2.5mA maximum). The LM293ADR meets all specified parameters.

Q: How does inventory availability affect component selection?

A: The LM293ADR provides 80,523 pieces in stock compared to 1,075 pieces for the SN293ADR. For production quantities exceeding current SN293ADR inventory, the LM293ADR ensures supply continuity without lead time constraints.

Q: Are there any compliance or certification differences?

A: Both components maintain identical ROHS3 compliance and MSL Level 1 ratings. No additional certifications or compliance modifications are required for substitution.