AP7315-33SR-7 Equivalent & Substitute Parts

Part Overview

The AP7315-33SR-7 is a linear voltage regulator IC from Diodes Incorporated designed for positive fixed 3.3V output applications. This Surface Mount Device (SMD) in SOT-23-3 package delivers 150mA output current with a maximum dropout voltage of 0.29V at rated load. The part is Active status and ROHS3 compliant, making it suitable for modern electronic applications requiring regulated 3.3V power distribution in space-constrained designs.

Substitute parts are identified when electrical parameters, mechanical packaging, and compliance certifications remain equivalent across the product line, ensuring direct interchangeability without circuit redesign.

Substiute Parts

AP7315-33SR-7

Diodes IncorporatedIn Stock: 789AP7315-33SR-7 Datasheet

Current PartRFQ

AP7315-33SA-7

Diodes IncorporatedIn Stock: 6419AP7315-33SA-7 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The AP7315-33SR-7 and AP7315-33SA-7 are grouped as equivalent substitutes based on identical electrical specifications and mechanical compatibility. Both parts share the same base product number (AP7315) and differ only in packaging designation (SR vs. SA suffix), which represents different tape and reel configurations from the same manufacturer.

Substitution is valid when the following parameters match:

• Output voltage: 3.3V fixed
• Output current rating: 150mA
• Input voltage maximum: 5.25V
• Dropout voltage: 0.29V @ 150mA
• Package type: SOT-23-3
• Operating temperature range: -40°C to 85°C
• Protection features: Over Current
• Compliance: ROHS3, REACH Unaffected

Parameter Comparison

Engineering Selection Recommendations

Both AP7315-33SR-7 and AP7315-33SA-7 are Active status products from Diodes Incorporated with identical electrical and thermal specifications. Selection between these parts is determined by packaging and supply chain requirements rather than functional differences.

The AP7315-33SR-7 carries 726 pieces in current inventory, while AP7315-33SA-7 has 6400 pieces available. Both parts maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1), suitable for standard manufacturing and storage conditions. The suffix designation (SR vs. SA) reflects different tape and reel configurations for automated assembly equipment compatibility.

Frequently Asked Questions (FAQ)

Q: Can AP7315-33SA-7 be used as a direct replacement for AP7315-33SR-7?

A: Yes. Both parts are electrically and mechanically identical with matching output voltage (3.3V), current rating (150mA), dropout voltage (0.29V @ 150mA), and SOT-23-3 package specifications. The difference in part number suffix indicates tape and reel packaging configuration only.

Q: What does the SR and SA suffix designation mean?

A: The SR and SA suffixes represent different tape and reel specifications from Diodes Incorporated for the same die and package type. Both are suitable for automated pick-and-place assembly equipment; compatibility depends on your specific feeder system requirements.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts carry identical ROHS3 compliance, REACH Unaffected status, and MSL 1 (Unlimited) moisture sensitivity rating. Electrical and thermal performance specifications are identical across all operating conditions.

Q: What is the maximum input voltage for these regulators?

A: The maximum input voltage is 5.25V for both AP7315-33SR-7 and AP7315-33SA-7. This specification must be observed to prevent device damage.

Q: Can these parts operate at the full -40°C to 85°C temperature range?

A: Yes. Both parts are rated for continuous operation across the full -40°C to 85°C temperature range with specified electrical performance maintained throughout this range.