AS339GTR-E1 Equivalent & Substitute Parts

Part Overview

The AS339GTR-E1 is a quad general-purpose comparator manufactured by Diodes Incorporated in a 14-TSSOP surface-mount package. This active product operates across a wide supply voltage range (2V to 36V single supply, ±1V to ±18V dual supply) with open-collector outputs suitable for logic-level interfacing. Finding equivalent or substitute parts becomes necessary when addressing supply chain constraints, inventory availability, or specific application requirements that may benefit from alternative packaging or performance characteristics while maintaining functional compatibility.

Substiute Parts

AS339GTR-E1

Diodes IncorporatedIn Stock: 25231AS339GTR-E1 Datasheet

Current PartRFQ

AS339GTR-G1

Diodes IncorporatedIn Stock: 53121AS339GTR-G1 Datasheet

Parametric EquivalentRFQ

BA2901SF-E2

Rohm SemiconductorIn Stock: 15563BA2901SF-E2 Datasheet

MFR RecommendedRFQ

LMV339MX/NOPB

National SemiconductorIn Stock: 5247LMV339MX/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AS339GTR-E1 is determined by the following critical parameters:

• Functional equivalence: Four independent general-purpose comparators with open-collector outputs
• Supply voltage compatibility: Operating range of 2V to 36V (single supply) or ±1V to ±18V (dual supply)
• Input offset voltage: Maximum 5mV to 7mV @ 5V
• Input bias current: Maximum 0.25µA @ 5V
• Output current capability: Minimum 16mA @ 5V
• Quiescent current: Maximum 2mA
• Temperature range: Minimum -40°C to 85°C
• Package compatibility: Surface-mount packages with 14-pin configuration

The identified substitutes fall into two categories: parametric equivalents from the same manufacturer with identical electrical specifications, and manufacturer-recommended alternatives with comparable performance characteristics and different packaging options.

Parameter Comparison

Engineering Selection Recommendations

AS339GTR-G1 (Diodes Incorporated): This part is a parametric equivalent with identical electrical specifications and the same 14-TSSOP package. It serves as a direct replacement when the original part number becomes unavailable. Both parts share the same base product number (AS339), active product status, and ROHS3 compliance. Selection between AS339GTR-E1 and AS339GTR-G1 depends solely on inventory availability and supply chain considerations.

BA2901SF-E2 (Rohm Semiconductor): This manufacturer-recommended alternative maintains electrical compatibility across all critical parameters with a maximum input offset voltage of 7mV (versus 5mV for the Diodes part). The package transitions from 14-TSSOP to 14-SOIC with identical 4.40mm width, requiring PCB layout verification for pin-to-pin compatibility. The extended operating temperature range (-40°C to 105°C) and superior moisture sensitivity rating (MSL 1) provide advantages in high-temperature or humid environments. ROHS3 compliance is confirmed.

LMV339MX/NOPB (National Semiconductor): This part operates within a narrower supply voltage range (2.7V to 5.5V), restricting its use to applications not requiring the full 2V to 36V capability of the original part. The higher output current (84mA typical) and quiescent current (300µA maximum) represent significant deviations from the AS339GTR-E1 specifications. The 14-SOIC package with 3.90mm width differs from the original 4.40mm width, requiring PCB redesign. Selection of this part is appropriate only when the narrower voltage range and higher power consumption are acceptable trade-offs for specific application requirements.

Frequently Asked Questions (FAQ)

Q: Can AS339GTR-G1 be used as a direct drop-in replacement for AS339GTR-E1?

A: Yes. Both parts are manufactured by Diodes Incorporated with identical electrical specifications, the same 14-TSSOP package, and equivalent compliance certifications. No circuit modifications or PCB layout changes are required.

Q: What are the key differences between BA2901SF-E2 and AS339GTR-E1?

A: The BA2901SF-E2 differs in three areas: (1) package type changes from 14-TSSOP to 14-SOIC, though both maintain 4.40mm width; (2) input offset voltage increases from 5mV to 7mV maximum; (3) operating temperature range extends to 105°C and moisture sensitivity improves to MSL 1. Electrical performance remains compatible for most applications.

Q: Is LMV339MX/NOPB suitable for all applications using AS339GTR-E1?

A: No. The LMV339MX/NOPB operates only within 2.7V to 5.5V supply range, making it incompatible with applications requiring the full 2V to 36V capability of the AS339GTR-E1. Additionally, the different package width (3.90mm versus 4.40mm) requires PCB redesign. Verify application voltage requirements before selection.

Q: What packaging considerations apply when switching from AS339GTR-E1 to BA2901SF-E2?

A: Both packages maintain 4.40mm width and 14-pin surface-mount configuration. However, the transition from 14-TSSOP to 14-SOIC involves different pin pitch and body dimensions. PCB footprint verification is required to confirm mechanical compatibility, though electrical pin assignments remain equivalent.

Q: Are all substitute parts ROHS3 compliant?

A: AS339GTR-E1, AS339GTR-G1, and BA2901SF-E2 are confirmed ROHS3 compliant. RoHS compliance status for LMV339MX/NOPB is not specified in available documentation.

Q: Which substitute part offers the best reliability in high-temperature environments?

A: BA2901SF-E2 provides the extended operating temperature range (-40°C to 105°C) and superior moisture sensitivity rating (MSL 1 versus MSL 3), making it the preferred choice for high-temperature or high-humidity applications.