AP7343-09FS4-7B Equivalent & Substitute Parts

Part Overview

The AP7343-09FS4-7B is a linear voltage regulator IC manufactured by Diodes Incorporated, designed for positive fixed output applications. This device delivers 300mA output current with a fixed 0.9V output voltage and is housed in a 4-XDFN Exposed Pad surface mount package. The part is currently in active production status with 32,980 units available in inventory. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the specified parameter range.

Substiute Parts

AP7343-09FS4-7B

Diodes IncorporatedIn Stock: 33059AP7343-09FS4-7B Datasheet

Current PartRFQ

AP7343D-09FS4-7B

Diodes IncorporatedIn Stock: 1003AP7343D-09FS4-7B Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AP7343-09FS4-7B are identified based on strict equivalence across the following critical parameters:

• Output voltage configuration: Fixed 0.9V positive output
• Output current capability: 300mA
• Maximum input voltage: 5.25V
• Voltage dropout specification: 0.8V @ 300mA
• Quiescent current: 60 µA
• PSRR performance: 75dB (1kHz)
• Package type: 4-XDFN Exposed Pad (X2-DFN1010-4)
• Surface mount compatibility
• Operating temperature range: -40°C ~ 85°C
• Regulatory compliance: ROHS3, REACH Unaffected

The AP7343D-09FS4-7B meets all specified electrical and mechanical parameters, maintaining identical performance characteristics and package footprint compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the AP7343-09FS4-7B and AP7343D-09FS4-7B are active production devices from Diodes Incorporated with identical electrical specifications and package configurations. Selection between these parts is based on inventory availability and supply chain requirements. The AP7343-09FS4-7B maintains higher inventory levels at 32,980 units, while the AP7343D-09FS4-7B has 944 units available. Both parts carry ROHS3 compliance and REACH Unaffected status, meeting current regulatory requirements for industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can AP7343D-09FS4-7B be used as a direct replacement for AP7343-09FS4-7B?

A: Yes. Both parts are manufactured by Diodes Incorporated with identical electrical parameters, output voltage, current rating, dropout voltage, and package configuration. Direct substitution is supported without circuit modification.

Q: Are there differences in the package footprint between these parts?

A: No. Both parts use the 4-XDFN Exposed Pad package (X2-DFN1010-4) with identical mechanical dimensions and pin configuration, ensuring PCB layout compatibility.

Q: What determines substitution eligibility for this regulator?

A: Substitution is determined by matching the fixed output voltage (0.9V), output current capability (300mA), maximum input voltage (5.25V), voltage dropout specification (0.8V @ 300mA), package type (4-XDFN Exposed Pad), and operating temperature range (-40°C ~ 85°C).

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both the AP7343-09FS4-7B and AP7343D-09FS4-7B are ROHS3 compliant and REACH Unaffected, meeting current environmental and regulatory standards.

Q: What is the moisture sensitivity level for these parts?

A: Both parts carry MSL Rating 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.