AP7370-18WW-7 Equivalent & Substitute Parts

Part Overview

The AP7370-18WW-7 is a linear voltage regulator IC from Diodes Incorporated designed for positive fixed 1.8V output applications. This Surface Mount device delivers 300mA output current in a compact SOT-25 package and is classified as Active product status. Substitute parts are identified to address inventory availability, supply chain continuity, and procurement flexibility while maintaining identical electrical and mechanical specifications.

Substiute Parts

AP7370-18WW-7

Diodes IncorporatedIn Stock: 775AP7370-18WW-7 Datasheet

Current PartRFQ

AP7370-18W5-7

Diodes IncorporatedIn Stock: 8994AP7370-18W5-7 Datasheet

Parametric EquivalentRFQ

AP7370-18WR-7

Diodes IncorporatedIn Stock: 1277AP7370-18WR-7 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AP7370-18WW-7 are identified as parametric equivalents within the AP7370 base product family. Substitution is valid when all critical electrical parameters match exactly: fixed output voltage of 1.8V, output current rating of 300mA, maximum input voltage of 18V, quiescent current of 2.5 µA, and identical protection features (Over Current, Over Temperature, Reverse Current, Short Circuit). All substitute parts maintain the same package configuration (SC-74A, SOT-753), mounting type (Surface Mount), and operating temperature range (-40°C ~ 125°C). Compliance certifications including ROHS3, MSL Level 1, and REACH Unaffected status are consistent across all listed parts.

Parameter Comparison

Engineering Selection Recommendations

All three parts—AP7370-18WW-7, AP7370-18W5-7, and AP7370-18WR-7—are Active status products from Diodes Incorporated with identical electrical specifications and mechanical packaging. Selection between these parts is determined by inventory availability and procurement lead times. AP7370-18W5-7 maintains the highest inventory level at 8906 units. AP7370-18WR-7 provides 1174 units in stock. AP7370-18WW-7 has 735 units available. All parts carry ROHS3 compliance, MSL Level 1 rating, and REACH Unaffected status, confirming regulatory alignment for industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can AP7370-18W5-7 or AP7370-18WR-7 be used as direct replacements for AP7370-18WW-7?

A: Yes. All three parts are parametric equivalents with identical output voltage (1.8V), output current (300mA), input voltage rating (18V), quiescent current (2.5 µA), package configuration (SC-74A, SOT-753), and protection features. Direct substitution is valid at the circuit board level without design modification.

Q: Are there differences in package or pinout between these parts?

A: No. All three parts use the same package designation (SC-74A, SOT-753) with identical pinout and mounting configuration. Surface mount assembly processes remain unchanged.

Q: What is the basis for substitution between these part numbers?

A: Substitution is based on matching all critical electrical parameters: fixed 1.8V output, 300mA current capacity, 18V maximum input, 2.5 µA quiescent current, and identical protection features (Over Current, Over Temperature, Reverse Current, Short Circuit). Compliance certifications (ROHS3, MSL Level 1, REACH Unaffected) and Active product status are consistent across all parts.

Q: Do these parts have different lead times or availability?

A: Inventory levels vary. AP7370-18W5-7 has the highest stock at 8906 units, followed by AP7370-18WR-7 at 1174 units, and AP7370-18WW-7 at 735 units. Procurement strategy should consider current inventory and supply chain requirements.

Q: Are there any thermal or performance differences between these parts?

A: No. All parts operate across the same temperature range (-40°C ~ 125°C junction temperature) with identical thermal and electrical performance characteristics.